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Steffen Jockusch

Assoc Rsch Scientist

MC 3138

work:+1 212 854 1162

[email protected]

Bio in Brief

Dr. rer. nat. (PhD), 1993
Organic Chemistry,
Halle-Wittenberg, Germany.

Graduated degree (Diplom), 1989
Organic Chemistry,
Technical University of Merseburg, Germany.

Associate Research Scientist July 1997 - present
Department of Chemistry, Columbia University New York

Postdoctoral Research Fellow February 1994 - June 1997
(Recipient of the German Academic Exchange Service Postdoctoral Fellowship)
Advisor: Professor N. J. Turro, Columbia University, NY.

Graduate Research (Ph. D.) September 1989 - November 1993
Advisor: Professor H.-J. Timpe, Martin-Luther-University Halle-Wittenberg, Germany
Dissertation Title: "Photoinduced Energy and Electron Transfer between Ketones and Dyes"

Graduate Research (Diplom) September 1988 - August 1989
Advisor: Professor H.-J. Timpe, Dr. U. Mueller, Technical University of Merseburg, Germany.
Thesis Title: "Synthesis and Photopolymerization of Silicon Acrylates and Methacrylates".


(195)  Pollum, M.;  Jockusch, S.; Crespo-Hernández, C. E.:  “2,4‐Dithiothymine as a Potent UVA Chemotherapeutic Agent”  J. Am. Chem. Soc. 2014, 136, 17930-17933.

(194)  Palla, M.; Guo, W.; Shi, S.; Li, Z.; Wu, J.; Jockusch, S.; Guo, C.; Russo, J. J.; Turro, N. J.; Ju, J.:  “DNA sequencing by synthesis using 3′-O-azidomethyl nucleotide reversible terminators and surface-enhanced Raman spectroscopic detection”  RSC Advances, 2014, 4, 49342-49346.

(193)  Iyer, A.; Jockusch, S.; Sivaguru, J.: “Dictating Photoreactivity through Restricted Bond Rotations: Cross-Photoaddition of Atropisomeric Acrylimide Derivatives under UV/ Visible-Light Irradiation.” J. Phys. Chem. A, 2014, 118, 10596-10602.

(192)  Kumarasamy, E.; Raghunathan, R.; Jockusch, S.; Ugrinov, A.; Sivaguru, J.:  “Tailoring Atropisomeric Maleimides for Stereospecific [2 + 2] Photocycloaddition - Photochemical and Photophysical Investigations Leading to Visible-Light Photocatalysis.”  J. Am. Chem. Soc. 2014, 136, 8729-8737.

(191)  Da Silva, J. P.; Choudhury, R.; Porel, M.; Pischel, U.; Jockusch, S.; Hubbard, P. C.; Ramamurthy, V.; Canário, A. V. M.: “Synthetic versus Natural Receptors: Supramolecular Control of Chemical Sensing in Fish.”  ACS Chem. Biol. 2014, 9, 1432-1436.

(190)  Yagci, Y.; Tasdelen, M. A.; Jockusch, S.:  “Reduction of Cu(II) by photochemically generated phosphonyl radicals to generate Cu(I) as catalyst for atom transfer radical polymerization and azide-alkyne cycloaddition click reactions.” Polymer, 2014, 55, 3468-3474.

(189)  Vallavoju, N.; Selvakumar, S.; Jockusch, S.; Prabhakaran, M. T.; Sibi, M. P.; Sivaguru, J.:  “Evaluating Thiourea Architecture for Intramolecular [2+2] Photocycloaddition of 4-Alkenylcoumarins.” Adv. Synth. Catal. 2014, 356, 2763-2768.

(188)  Jockusch, S.; Bonda, C.; Hu, S.:  “Photostabilization of endogenous porphyrins: excited state quenching by fused ring cyanoacrylates.”  Photochem. Photobiol. Sci. 2014, 13, 1180-1184.

(187) Vallavoju, N.; Selvakumar, S.; Jockusch, S.; Sibi, M. P.; Sivaguru, J.
"Enantioselective Organo-Photocatalysis Mediated by Atropisomeric Thiourea
Derivatives." Angew. Chem. 2014, 126, 5710-5714; Angew. Chem. Int. Ed. 2014,
53, 5604-5608.

(186) Zheng, Q.; Jockusch, S.; Zhou, Z.; Blanchard, S. C.: "The Contribution of
Reactive Oxygen Species to the Photobleaching of Organic Fluorophores.
Photochem. Photobiol." 2014, 90, 448-454.

(185) Zheng, Q.; Juette, M. F.; Jockusch, S.; Wasserman, M. R.; Zhou, Z.; Altman, R,
B.; Blanchard, S. C.: "Ultra-stable organic fluorophores
for single-molecule research. Chem. Soc. Rev." 2014, 43, 1044-1056.

(184) Jockusch, S.; Turro, N. J.; Banala, S.; Krutler, B.: "Photochemical Studies of a
Fluorescent Chlorophyll Catabolite - Source of Bright Blue Fluorescence in Plant
Tissue and Efficient Sensitizer of Singlet Oxygen." Photochem. Photobiol. Sci.
2014, 13, 407-411.

(183) Smitka, J.; Lemos, A.; Porel, M.; Jockusch, S.; Beldarrain, T.; Tesaov, E.; Da
Silva, J. P.: "Phototransformation of benzimidazole and thiabendazole inside
cucurbit[8]uril." Photochem. Photobiol. Sci. 2014, 13, 310-315.

(182) Moscatelli, A.; Sartori, E.; Ruzzi, M.; Jockusch, S.; Lei, X.; Khudyakov, I.; Turro,
N. J.: "Photolysis of Endoperoxides in the Presence of Nitroxides: A Laser Flash
Photolysis Study with Optical and ESR Detection." Photochem. Photobiol. Sci.
2014, 13, 205-210.

(181) Ayitou, A. J.-L.; Clay, A.; Kumarasamy, E.; Jockusch, S.; Sivaguru, J.:
"Enantiospecific Photochemical 6p-ring Closure of -substituted Atropisomeric
Acrylanilides Role of Alkali Metal Ions." Photochem. Photobiol. Sci. 2014, 13,

(180) Karasu, F.; Arsu, N.; Jockusch, S.; Turro, N. J.: "Thioxanthone Hydroquinone-
O,O-diacetic Acid: Photoinitiator or Photostabilizer?" J. Org. Chem. 2013, 78,

(179) Qu, J.; Ma, L.; Zhang, J.; Jockusch, S.; Washington, I.: "Dietary Chlorophyll
Metabolites Catalyze the Photoreduction of Plasma Ubiquinone." Photochem.
Photobiol. 2013, 89, 310-313.

(178) Galego, L. R.; Jockusch, S.; Da Silva, J. P.: "Polyphenol and Volatile Profiles of
Pomegranate (Punica Granatum L.) Fruit Extracts and Liquors." Int. J. Food Sci.
Technol. 2013, 48, 693-700.

(177) Esen, D. S.; Arsu, N.; Da Silva, J. P.; Jockusch, S.; Turro, N. J.: "Benzoin type
photoinitiator for free radical polymerization." J. Polym. Sci. A, 2013, 51, 1865-

(176) Porel, M.; Ottaviani, F.; Jockusch, S.; Turro, N. J.; Ramamurthy, V.:  “Control of spin-spin exchange interactions in polynitroxides through inclusion within g-cyclodextrin.”   RSC Advances, 2013, 3, 427-431.

(175) Turro, N. J.; Li, Y.; Jockusch, S.; Hagiwara, Y.; Okazaki, M.; Mesch, R. A.; Schuster, D. I.; Willson, C. G.:  “Study of a Two-Stage Photobase Generator for Photolithography in Microelectronics”  J. Org. Chem.  2013, 78, 1735-1741.

(174) Hagiwara, Y.; Mesch, R. A.; Kawakami, T.; Okazaki, M.; Jockusch, S.; Li, Y.; Turro, N. J.; Willson, C. G.:  “Design and Synthesis of a Photoaromatization-Based Two-Stage Photobase Generator for Pitch Division Lithography”  J. Org. Chem.  2013, 78, 1730-1734.

(173) Aydin, M.; Tasdelen, M. A.; Uyar, T.; Jockusch, S.; Turro, N. J.: Yagci, Y.: “Polystyrene/Clay Nanocomposites by Atom Transfer Radical Nitroxide Coupling Chemistry.”  J. Polym. Sci. A, 2013, 51, 1024-1028.

(172) Aydogan, B.; Yagci, Y.; Toppare, L.; Jockusch, S.; Turro, N. J.:  “Photoinduced electron transfer reactions of highly conjugated thiophenes for initiation of cationic polymerization and conjugated polymer formation.”  Macromolecules, 2012, 45, 7829-7834.

(171) Estes, D. P.; Norton, J. R.; Jockusch, S.; Sattler, W.: “Mechanism by which alkynes react with CpCr(CO)3H.  Application to radical cyclization.”  J. Am. Chem. Soc. 2012, 134, 15512-15518.

(170) Rao, Y.; Xu, M.; Jockusch, S.; Turro, N. J.; Eisenthal, K. B.:  “Dynamics of excited state electron transfer at a liquid interface using time-resolved sum frequency generation.”  Chem. Phys. Lett. 2012, 544, 1-6.

(169) Zheng, Q.; Jockusch, S.; Zhou, Z.; Altman, R. B.; Warren, J. D.; Turro, N. J.; Blanchard, S. C.:  “On the mechanism of cyanine fluorophore photostabilization.”   J. Phys. Chem. Lett. 2012, 3, 2200-2203.

(168) Lee, R.; Stack, K.; Lewis, T.; Garnier, G.; Richardson, D.; Ottaviani, M. F.; Jockusch, S.; Turro, N. J.: “Structure of wood extract colloids and effect of CaCl2 on the molecular mobility.”    Nord. Pulp Paper Res. J. 2012, 27, 639-646.

(167) Peng, Y.; Qiu, C.; Jockusch, S.; Scott, A. M.; Li, Z.; Turro, N. J.; Ju, J.: “CdSe/ZnS Core Shell Quantum Dots Based FRET Binary Oligonucleotide Probes for Detection of Nucleic Acids.”  Photochem. Photobiol. Sci. 2012, 11, 881-884.

(166) Porel, M.; Jockusch, S.; Parthasarathy, A.; Rao, J.; Turro, N. J.; Ramamurthy, V.  “Photoinduced electron transfer between a donor and an acceptor Separated by a capsular wall”  Chem. Commun. 2012, 48, 2710-2712.

(165) Bietti, M.; Salamone, M.; DiLabio, M.; Jockusch, S.; Turro, N. J.: “Kinetic solvent effects on hydrogen abstraction from phenol by the cumyloxyl radical. Toward an understanding of the role of protic solvents.”  J. Org. Chem. 2012, 77, 1267-1272.

(164) Ottaviani, M. F.; Modelli, A.; Zeika, O.; Jockusch, S.; Moscatelli, A.; Turro, N. J.:  “EPR analysis and DFT computations of a series of polynitroxides”  J. Phys, Chem. A, 2012, 116, 174-184.

(163) Da Silva, J. P.; Kulasekharan, R.; Cordeiro, C.; Jockusch, S.; Turro, N. J.; Ramamurthy, V.  “Capsular Complexes of Non-polar Guests with Octa Amine Host Detected in the Gas Phase.”   Org. Lett. 2012, 14, 560-563.

(162) Yapici, N. B.; Jockusch, S.; Moscatelli, A.; Mandalapu, S. R.; Itagaki, Y.; Bates, D. K.; Wiseman, S.; Gibson, K. M.; Turro, N. J.; Bi, L.:  “New rhodamine nitroxide based fluorescent probes for intracellular hydroxyl radical identification in living cells.”  Org. Lett. 2012, 14, 50-53.

(161) Jockusch, S.; Porel, M.; Ramamurthy, V.; Turro, N. J.:  "CIDEP from a polarized ketone triplet state incarcerated within a nanocapsule to a nitroxide in the bulk aqueous solution."    J. Phys. Chem. Lett. 2011, 2, 2877-2880.

(160) Frunzi, M.; Jockusch, S.; Chen, J. Y.-C.; Krick Calderon, R. K.; Lei, K.; Murata, Y.; Komatsu, K.; Guldi, D. M.; Lawler, R. G.; Turro, N. J.:  "A photochemical on-off switch for tuning the equilibrium mixture of H2 nuclear spin isomers as a function of temperature." J. Am. Chem. Soc. 2011, 133, 14232-14235. 

(159) Young, D. D.; Jockusch, S.; Turro, N. J.; Schultz, P. G.  "Synthetase polyspecificity as a tool to modulate protein function."  Bioorg. Med. Chem. Lett. 2011, 21, 7502-7504.

(158) Porel, M.; Jockusch, S.; Ottaviani, M. F.; Turro, N. J.; Ramamurthy, V.:  "Interaction between encapsulated excited organic molecules and free nitroxides: Communication across a molecular wall."   Langmuir, 2011, 27, 10548-10555.

(157) Sundaresan, A. K.; Jockusch, S.; Turro, N. J.:  "Photochemistry of 2-diphenylmethoxyacetophenone. Direct detection of a long-lived enol from a Norrish Type II photoreaction."   Photochem. Photobiol. Sci. 2011, 10, 1450-1454.

(156) Rao, Y.; Li, X.; Lei, X.; Jockusch, S.; George, M. G.; Turro, N. J.; Eisenthal, K. B.: "Observations of interfacial population and organization of surfactants with sum frequency generation and surface tension."  J. Phys. Chem. C, 2011, 115, 12064-12067.

(155) Lee, M.; Tremblay, M. S.; Jockusch, S.; Turro, N. J.; Sames, D.:  "Intermolecular Energy Transfer from Tb3+ to Eu3+ in Aqueous Micelles and on the Surface of Human Cells."  Org. Lett., 2011, 13, 2802-2805.

(154) Pemberton, B.; Singh, R.; Johnson, A. C.; Jockusch, S.; Da Silva, J. P.; Ugrinov, A.; Turro, N. J.; Srivatsava, D. K.; Sivaguru, J.  "Supramolecular photocatalysis: Insights into cucurbit[8]uril catalyzed photodimerization of 6-methylcoumarin."  Chem. Commun. 2011, 46, 6323-6325.

(153) Da Silva, J. P.; Jayaraj, N.; Jockusch, S.; Turro, N. J.; Ramamurthy, V.:  "Aggregation of Curcurbituril Complexes in the Gas Phase." Org. Lett., 2011, 13, 2410-2413.

(152) Pemberton, B. C.; Kumarasamy, E.; Jockusch, S.; Srivastava, D. K.; Sivaguru, J.:  "Photophysical aspects of 6-methylcoumarin-cucurbit[8]uril host-guest complexes." Can. J. Chem. 2011, 89, 310-316.

(151) Jayaraj, N.; Jockusch, S.; Kaanumalle, L. S.; Turro, N. J.; Ramamurthy, V.: "Dynamics of capsuleplex formed between octaacid and organic guest molecules - Photophysical techniques reveal the opening and closing of capsuleplex." Can. J. Chem. 2011, 89, 203-213. 

(150) Balta, D. K.; Sundaresan, A. K.; Arsu, N.; Yagci, Y.; Jockusch, S. Turro, N. J.: "Mechanism of photoinitiated free radical polymerization by thioxanthone-anthracene in the presence of air." Macromolecules, 2011, 44, 2531-2535. 

(149) Groff, D.; Wang, F.; Jockusch, S.;Turro, N. J.; Schultz, P. G.  "A newstrategy to photoactivate green fluorescent protein"  Angew.Chem. 2010, 49, 7843-7845;  Angew. Chem. Int. Ed. 2010, 49, 7677-7679.

(148) Porel, M.; Ottaviani, M. F.; Jockusch, S.;Jayaraj, N.; Turro, N. J.; Ramamurthy, V.: "Suppression of spin-spin coupling innitroxyl biradicals by supramolecular host-guest interactions."   Chem.Commun.  2010, 46,7736-7738.

(147) Jockusch,S.; Zeika, O.; Jayaraj, N.; Ramamurthy, V.; Turro, N. J.:  "ElectronSpin Polarization Transfer from a Nitroxide Incarcerated within a Nanocapsuleto a Nitroxide in the Bulk Aqueous Solution"  J. Phys. Chem. Lett.2010,1, 2628-2632.

(145) Yagci,Y.; Jockusch, S.; Turro, N. J.: "Photoinitiated polymerization: Advances, challenges and opportunities" Macromolecules, 2010, 43,6245-6260.

(144)Sundaresan, A. K.; Jockusch, S.; Li, Y, Lanchester, J. R.; Banik, S.;Zimmerman, P.; Blackwell, J. M.; Bristol, R.; Turro, N. J.; "Adiabatic RingOpening in Tethered Naphthalene and Anthracene Cycloadducts"  Photochem.Photobiol. Sci. 2010, 9, 1082-1084.

(143) Da Silva,Jose P.; Jockusch, S.; Martinho, J. M. G.; Ottaviani, M. F.; Turro, N. J.: "Photochemistryof 4-chlorophenol and 4-chloroanisole adsorbed on MFI zeolites:  supramolecular control of chemioselectivityand reactive intermediate dynamics."  Org. Lett. 2010, 12, 3062-3065.

(142) Jayaraj, N.; Maddipatla, M. V.S. N.; Prabhakar, R.; Jockusch, S.;Turro, N. J.; Ramamurthy, V.: "A closed nano-containerenables thioketones to phosphoresce at room temperature in aqueous solution"J. Phys. Chem. B,2010, 114,14320-14328.

(141) Kulasekharan, R.; Jayaraj, N.;Porel, M.; Choudhury, R.; Sundaresan,A. K.; Parthasarathy, A.;  Ottaviani, M. F.; Jockusch, S.;Turro, N. J.; Ramamurthy, V.: "Guest rotation within a capsuleplexprobed by NMR and EPR techniques."  Langmuir,2010, 26,6943-6953.

(140) Solomon,M. R.; Sivaguru, J.; Jockusch, S. Adam, W.; Turro, N. J.: "Decodingstereocontrol during photooxygenation of oxazolidinone-functionalizedenecarbamates." Org. Lett., 2010, 12, 2142-2145.

(139) Li, Y.; Lei, X.; Jockusch, S.;Chen, J. Y.-C.; Frunzi, M.; Johnson, J. A.; Lawler, R. G.; Murata, Y.; Murata,M.; Komatsu, K.; Turro, N. J.:  "Amagnetic switch for spin-catalyzed interconversion of nuclear spinisomers."  J.Am. Chem. Soc. 2010,132,4042-4043 

(138) Turro, N. J.; Chen, J. Y.-C.; Sartori, E.; Ruzzi, M.; Marti, A.; Lawler, R.; Jockusch,S.; Lopez-Gejo, J.; Komatsu, K.; Murata, Y: "The spin chemistry and magnetic resonance of H2@C60.  From the Pauli principle to trapping a longlived nuclear excited spin state inside a buckyball."  Acc.Chem. Res., 2010, 43, 335-345.

(137) Jyotsna, T.; Kumar, C. V.; Jockusch, S.; Turro, N.J.:  "Steady-state and time-resolvedstudies of the photocleavage of lysozyme by Co(III) complexes"  Langmuir, 2010, 26, 1966-1972. (136) Jung, N.;Kim, N.; Jockusch, S.; Turro, N. J.; Kim, P.; Brus, L.:"Charge transfer chemical doping of few layergraphenes:Charge distribution and bandgap formation."Nanoletters, 2009, 9,4133-4137.(135) Maliakal,A. J.; Chen, J. Y.-C.; So, W.-Y.; Jockusch, S.; Kim, B.; Ottaviani, M. F.;Modelli, A.; Turro, N. J.; Nuckolls, C.; Ramirez, A. P.:"Mechanism for oxygen-enhancedphotoconductivity in rubrene: electron transfer doping."Chem. Mater. 2009, 21, 5519-5526.

(134) Mammana,A.; Pescitelli, G.; Asakawa, T.; Jockusch, S.; Petrovic, A. G.; Monaco, R. R.;Purrello, R.; Turro, N. J.; Nakanishi, K.; Ellestad, G. A.; Balaz, M.; Berova,N."Role of environmental factors on thestructure and spectroscopic response of 5'-porphyrin-DNA conjugates caused bychanges in porphyrin-porphyrin interactions."Chem. Eur. J. 2009, 15, 11853-11866.

(133) Karasu, F.;Arsu, N.; Jockusch, S.; Turro, N. J.:"Mechanistic studies of photoinitiated Free radical polymerization usinga bifunctional thioxanthone acetic acid derivative as photoinitiator."Macromolecules, 2009, 42, 7318-7323.
(132) Moser, S.;Mueller, T.; Holzinger, A.; Luetz, C.; Jockusch, S.; Turro, N. J.; Kraeutler,B."Fluorescent chlorophyll

catabolitesin bananas light up blue halos of cell death."Proc. Nat. Acad. Sci. USA, 2009, 106, 15538-15543.
(131) Jayaraj,N.; Porel, M.; Ottaviani, M. F.; Maddipatla, M. V. S. N.; Modelli, A.; DaSilva, J. P.; Bhogala, B. R.; Captain, B.; Jockusch, S.; Turro, N. J.;Ramamurthy, V.:"Self aggregation ofsupramolecules of nitroxides@cucurbit[8]uril revealed by EPR spectra."Langmuir, 2009, 25, 13820-13832.

(130) Gu, X.;Berro, A. J.; Cho, Y.; Jen, K.; Lee, S.; Ngai, T.; Ogata, T.; Durand, W. J.;Sundaresan, A.; Lancaster, J. R.; Jockusch, S.; Zimmerman, P.; Turro, N. J.;Willson, C. G.:"Fundamental study ofoptical threshold layer approach towards double exposure lithography."Proc. of SPIE, 2009, 7273, 72731C.

(129) Berro, A.J.; Gu, X.; O'Connor, N.; Jockusch, S.; Nagai, T.; Ogata, T.; Zimmerman, P.;Rice, B. J.; Adolph, E.; Byargeon, T.; Gonzalez, J.; Turro, N. J.; Willson, C.G.:"Optical threshold layer andintermediate state two-photon PAG approaches to double exposure lithography."Proc. of SPIE, 2009, 7273, 72731B.

(128) Costner, E.A.; Long, B. K.; Navar, C.; Jockusch, S. Lei, X.; Zimmerman, P.; Turro, N. J.;Willson, C. G.:"Fundamental opticalproperties of linear and cyclic alkanes:VUV absorbance and index of refraction."J. Phys. Chem. A, 2009, 113, 9337-9347.

(127) Solomon, M.R.; Saito, H.; Sivaguru, J.; Jockusch, S.; Inoue, Y.; Adam, W.; Turro, N.J.:"Isolation and syn elimination of aPeterson adduct to obtain optically pure product in the diastereoselectivesynthesis of oxazolidinone-functionalized enecarbamates." Lett. Org. Chem.2009, 6, 362-366.

(126) Solomon, M.R.; Sivaguru, J.; Jockusch, S. Adam, W.; Turro, N. J.: "Physical and chemicalquenching rates and its influence on stereoselective photooxygenation ofoxazolidinone-functionalized enecarbamates."Photochem. Photobiol. Sci. 2009, 8, 912-915.

(125) Lau, K. S.F.; Zhao, S.; Ryppa, C.; Jockusch, S.; Turro, N. J.; Zeller, M.; Gouterman, M.;Khalil, G. E.; Brueckner, C.: "Synthesis, structure and optical properties ofpalladium(II) complexes of indaphyrin and thiaindaphyrin."Inorg. Chem. 2009, 48, 4067-4074.

(124) Da Silva,Jose P.; Jockusch, S.; Turro, N. J.: "Probing the photoreactivity of acylchlorides with oxygen."Photochem.Photobiol. Sci. 2009, 8, 210-216.

(123) Jockusch, S.,Turro, N. J.; Mitsukami, Y.; Matsumoto, M.; Iwamura, T.; Lindner, T.; Flohr, A;di Massimo, G.: "Photoinduced surface crosslinking of super absorbent polymerparticles."J. Appl. Polym. Sci, 2009,111, 2163-2170.

(122)O'Connor, N.A.; Adam, J. B.; Lancaster, J. R.; Xinyu, G.; Jockusch, S.; Tomoki, N; Ogata,T.; Lee, S.; Zimmerman, P.; Willson, C. G.; Turro, N. J.:"Towards the design of a sequential twophoton photoacid generator for double exposure photolithography."Chem. Mater., 2008, 20, 7374-7376.

(121)Lancaster, J.R.; Marti, A. A.; Lopez-Gejo, J.; Jockusch, S.; O'Connor, N.; Turro, N. J.:"Nonradiative deactivation of singlet oxygen (1O2) by cubane and itsderivatives."Org. Lett. 2008, 10, 5509-5512.

(120)Moser, S.;Mueller, T.; Ebert, M.-O.; Jockusch, S.; Turro, N. J.; Kraeutler, B.:"Blue Luminescence of Ripening Bananas."Angew. Chem. 2008, 120, 9087-9091; Angew.Chem. Int. Ed. 2008, 47, 8954-8957.

(119)Turro, N. J.;Marti, A. A.; Chen, J. Y.-C.; Jockusch, S.; Lawler, R. G.; Ruzzi, M.; Sartori,E.; Chuang, S.-C.; Komatsu, K.; Murata, Y.:"Demonstration of a Chemical Transformation Inside a Fullerene.The Reversible Conversion of the Allotropesof H2@C60."J. Am. Chem. Soc. 2008,130, 10506-10507.

(118)Chen, J.Y.-C.; Jayaraja, N.; Jockusch, S.; Ottaviani, M. F.; Ramamurthy, V.; Turro, N.J.:"EPR and NMR study of supramoleculareffects on paramagnetic interaction between a nitroxide incarcerated within ananocapsule with a nitroxide in bulk aqueous media."J. Am. Chem. Soc. 2008, 130, 7206-7207.

(117)Keskin, S.;Jockusch, S.; Turro, N. J.; Arsu, N.: "2-Mercaptothioxanthone as sensitizer andco-initiator for acylphosphine oxide photoinitiators for free radical polymerization."Macromolecules 2008, 41, 4631-4634.

(116)Chin, K. K.;Trevithick-Sutton, C. C.; McCallum, J.; Jockusch, S.; Turro, N. J.; Scaiano, J.C.; Foote, C. S.; Garcia-Garibay, M. A.:"Quantitative detection of singlet oxygen generated by excited statearomatic amino acids, proteins, and immunoglobulins."J. Am. Chem. Soc. 2008, 130, 6912-6913.

(115)Solomon, M.R.; Sivaguru, J.; Jockusch, S.; Adam, W.; Turro, N. J.:"Vibrational deactivation of singlet oxygen:does it play a role in stereoselectivity during photooxygenation?" Photochem.Photobiol. Sci., 2008, 7, 531-533.

(114)Lei, X.-G.;Jockusch, S.; Turro, N. J.; Tomalia, D. A.; Ottaviani, M. F.: "EPRcharacterization of gadolinium(III)-containing-PAMAM-dendrimers in the absenceand the presence of paramagnetic probes." J. Coll. Interf. Sci., 2008, 322,457-464.

(113)Kim, S. R.;Jockusch, S.; Itagaki, Y.; Turro, N. J.; Sparrow, J. R.:"Mechanisms involved in A2E oxidation."Exp. Eye Res., 2008, 86, 975-982.

(112)He, G. S.;Qin, H.-Y.; Zheng, Q.; Prasad, P. N.; Jockusch, S.; Turro, N. J.; Halim, M.;Sames, D.; Ågren, H.; He, S.: "Dynamic properties and optical phase conjugationof two-photon pumped ultrashort blue stimulated emission in a chromophoresolution"Phys. Rev. A, 2008, 77,013824.

(111)Tasdelen, M.A.; Kumbaraci, V.; Jockusch, S.; Turro, N. J.; Talinli, N.; Yagci, Y.:"Photoacid generation by stepwise two-photonabsorption:Photoinitiated cationicpolymerization of cyclohexene oxide by using benzodioxinone in the presence ofiodonium salt."Macromolecules, 2008,41, 295-297.

(110)Wakata, A.;Cahill, S. M.; Blumenstein, M.; Gunby, R. H.; Jockusch, S.; Marti, A. A.;Cimbro, B.; Gambacorti-Passerini, C.; Donella-Deana, A.; Pinna, L. A.; Turro,N. J.; Lawrence, D. S.: "A Mechanistic Design Principle for Protein TyrosineKinase Sensors: Application to a Validated Cancer Target" Org. Lett., 2008, 10,301-304.

(109)Sivaguru, J.;Solomon, M. R.; Poon, T,; Jockusch, S.; Bosio, S. G.; Adam, W.; Turro, N. J.:"The reaction of singlet oxygen with enecarbamates: a mechanistic playgroundfor investigating chemoselectivity, stereoselectivity and vibratioselectivityof photooxidations"Acc. Chem. Res.,2008, 41, 387-400.

(108)Jockusch, S.;Turro, N. J.; Thompson, E. K.; Gouterman, M.; Callis, J. B.; Khalil, G.E.:"Singlet Molecular Oxygen by DirectExcitation." Photochem. Photobiol. Sci., 2008, 7, 235-239.

(107) Conlon, P.; Yang, C. J.; Wu, Y.; Chen, Y.;Martinez, K., Kim, Y.; Stevens, N.; Marti, A. A.; Jockusch, S.; Turro, N. J.;Tan, W.: "Pyrene excimer signaling molecular beacons for probing nucleicacids."J. Am. Chem. Soc., 2008, 130,336-342.

(106)Kim, S. R.;Jang, Y. P.; Jockusch, S.; Itagaki, Y.; Turro, N. J. Nakanishi, K.; Sparrow, J.R.:"The all-trans-retinal dimer-seriesof lipofuscin pigments in retinal pigment epithelial cells in a recessiveStargardt disease model." Proc. Nat. Acad. Sci. USA, 2007, 104, 19273-19278.

(105)López-Gejo,J.; Marti, A. A.; Ruzzi, M.; Jockusch, S.; Komatsu, K.; Tanabe, F.; Murata, Y.;Turro, N. J.: "Can H2 Inside C60 Communicate with the Outside World?"J. Am. Chem. Soc., 2007, 104, 14554-14555.

(104)Abeywickrama,C.; Matsuda, H.; Jockusch, S.; Zhou, J.; Jang, Young P.; Chen, B.-X.; Itagaki,Y.; Erlanger, B.; Nakanishi, K.; Turro, N. J.; Sparrow, J. R.: "Immunochemicalrecognition of A2E, a pigment in the lipofuscin of retinal pigment epithelialcells." Proc. Nat. Acad. Sci. USA, 2007, 104, 14610-14615.

(103) Marti, A. A.; Puckett, C. A.; Dyer, J.;Stevens, N.; Jockusch, S.; Ju, J.; Barton, J. K.; Turro, N. J. "Inorganic-Organic Hybrid Luminescent Binary Probe for DNA Detection Based onSpin-Forbidden Resonance Energy Transfer." J. Am. Chem. Soc., 2007, 129,8680-8681

(102) Halim, M.; Tremblay, M. S.; Jockusch, S.; Turro,N. J.; Sames, D.: "Transposing Molecular Fluorescent Switches into theNear-IR: Development of Luminogenic Reporter Substrates for RedoxMetabolism." J. Am. Chem. Soc., 2007, 129, 7704-7705

(101) Washington, I.; Zhou, J.; Jockusch, S.; Turro,N. J.; Nakanishi, K.; Sparrow, J. R.: "Chlorophyll derivatives as visualpigments for super vision in the red." Photochem. Photobiol. Sci., 2007,6, 775-779

(100)Jockusch, S.; Zheng, Q.; He, G. S.; Pudavar, H.E.; Yee, D. J.; Balsanek, V.; Halim, M.; Sames, D.; Prasad, P. N.; Turro, N.J.: "Two-photon excitation of fluorogenic probes for redoxmetabolism: Dramatic enhancement of optical contrast ratio by two-photonexcitation." J. Phys. Chem. C, 2007, 111, 8872-8877

(99) Martí, A. A.; Jockusch, S.; Stevens, N.; Ju, J.;Turro, N. J.: "Fluorescent hybridization probes for sensitive andselective DNA and RNA detection." Acc. Chem. Res., 2007, 63, 3591-3600

(98) Yagci, Y.; Jockusch, S.; Turro, N. J.: "Mechanism of Photoinduced Step Polymerization of Thiophene by Onium Salts:Reactions of Phenyliodinium and Diphenylsulfinium Radical Cations withThiophene." Macromolecules, 2007, 40, 4481-4485

(97) Balta, D. K.; Arsu, N.; Yagci, Y.; Jockusch, S.;Turro, N. J.: "Thioxanthone-Anthracene: A New Photoinitiator for Free RadicalPolymerization in the Presence of Oxygen." Macromolecules,2007, 40, 4138-4141

(96) Deo, P.; Deo, N.; Somasundaran, P.; Moscatelli,A.; Jockusch, S.; Turro, N. J.; Ananthapadmanabhan, K. P.; Ottaviani, M.F.: "Interactions of a Hydrophobically Modified Polymer with OppositelyCharged Surfactants." Langmuir, 2007, 23, 5906-5913

(95) Natarajan, A.; Kaanumalle, L. S.; Jockusch, S.;Gibb, C. L. D.; Gibb, B. C.; Turro, N. J.; Ramamurthy, V.: "Controllingphotoreactions with restricted spaces and weak intermolecular forces: Exquisite selectivity during oxidation of olefins by singlet oxygen." J. Am.Chem. Soc., 2007, 129, 4132-4133

(94) Martí, A. A.; Li, X.; Jockusch, S.; Stevens, N.;Li, Z.; Raveendra, B.; Kalachikov, S.; Morozova, I.; Russo, J.; Akins, D. L.;Ju, J.; Turro, N. J.: "Design and characterization of two-dye and three-dyebinary fluorescent probes for mRNA detection." Tetrahedron, 2007, 63, 3591-3600

(93) Saito, H.; Sivaguru, J.; Jockusch, S.; Dyer, J.;Inoue, Y., Adam, W., Turro, N. J.: "Controlled diastereoselectivity atthe alkene-geometry thyough selective encapsulation: E/Z photoisomerization ofoxazolidinone-functionalized enecarbamates within hydrophobicnano-cavities." Chem. Commun., 2007, 819-821

(92) Khalil, G. E.; Thompson, E. K.; Gouterman, M.;Callis, J. B.; Dalton, L. R.; Turro, N. J.; Jockusch, S.: "NIRluminescence of gadolinium porphyrin complexes." Chem. Phys. Lett., 2007,435, 45-49

(91) Moscatelli, A.; Ottaviani, F. M.; Adam, W.;Buchachenko, A.; Jockusch, S.; Turro, N. J.: "Interaction between molecularoxygen and nitroxide radicals: A search for a reversible complex." Helv. Chim.Acta, 2006, 89, 2441-2449

(90) Sivaguru, J.; Poon, T.; Hooper, C.; Saito, H.;Solomon, M. R.; Jockusch, S.; Adam, W.; Inoue, Y.; Turro, N. J.: "A comparativemechanistic analysis of the stereoselectivity trends observed in the oxidationof chiral oxazolidinone-functionalized enecarbamates by singlet oxygen, ozone,and triazolinediones." Tetrahedron, 2006, 62, 10647-10659

(89) Li, X.; Li, Z.; Martí, A. A.; Jockusch, S.;Stevens, N.; Akins, D. L.; Turro, N. J.; Ju, J.: "Combinatorialfluorescence energy transfer molecular beacons for probing nucleic acidsequences." Photochem. Photobiol. Sci., 2006, 5, 896-902.

(88) Arsu, N.; Aydin, M.; Yagci, Y.; Jockusch, S.Turro, N. J.: "One component thioxanthone based Type II photoinitiators" in Photochemistry and UV Curing: New Trends, ed. J. P. Fouassier, ResearchSignpost, Kerala, India, 2006, Chapter 3, pp 17-29.

(87) Tremblay, M. S.; Zhu, Q.; Martí, A. A.; Dyer, J.;Halim, M.; Jockusch, S.; Turro, N. J.; Sames, D.: "Phosphorylationstate-responsive lanthanide peptide conjugates: A luminescence switch based onreversible complex reorganization." Org. Lett., 2006, 8, 2723-2726.

(86) Martí, A. A.; Li, X.; Jockusch, S.; Li, Z.;Raveendra, B.; Kalachikov, S.; Russo, J.; Morozova, I.; Puthanveettil, S. V.;Ju, J.; Turro, N. J.: "Pyrene binary probes for unambiguous detection of mRNAusing time resolved fluorescence spectroscopy." Nucleic Acid Res., 2006, 34,3161-3168.

(85) Marti, A. A.; Jockusch, S.; Li, Z.; Turro,N. J.; Ju, J.: Molecular beacons with intrinsically fluorescent nucleotides."Nucleic Acid Res., 2006, 34, e50.

(84) Jockusch, S.; Marti, A. A.; Turro, N. J.;Li, Z.; Li, X.; Ju, J.; Stevens, N.; Akins, D. L.: "Spectroscopic investigationof a FRET Molecular Beacon containing two fluorophores for probing of DNA/RNAsequences." Photochem. Photobiol. Sci., 2006, 5, 493-498.

(83) Balaz, M.; Li, B. C.; Jockusch, S.;Ellestad, G. A.; Berova, N.: "Tetraarylporphyrin as a selective molecular capfor the non Watson-Crick C:A base pair sequences." Angew. Chem. 2006, 118,3610-3613; Angew. Chem. Int. Ed. 2006, 45, 3530-3533.

(82) Moscatelli, A.; Chen, T. K.; Jockusch, S.;Ottaviani, F. M.; Forbes, M.; Turro, N. J.; "Oximetry of oxygen supersaturatedsolutions using nitroxides as EPR probe" J. Phys. Chem. A, 2006, 110,7574-7578.

(81) Sivaguru, J.; Solomon, M. R.; Saito, H.;Poon, T.; Jockusch, S.; Adam, W.; Ramamurthy, V.; Inoue, Y.; Turro, N.J.: "Conformationally controlled (entropy effects), stereoselectivevibrational quenching of singlet oxygen in the oxidative cleavage of oxazolidinone-functiionalizedenecarbamates through solvent and temperature variations." Tetrahedron,2006, 62, 6707-6717.

(80) Sivaguru, J.; Saito, H.; Solomon, M. R.;Kaanumalle, L. S.; Poon, T.; Jockusch, S.; Adam, W.; Ramamurthy, V.; Inoue, Y.;Turro, N. J.: "Control of chirality by cations in confined spaces:Photooxydation of enecarbamates inside zeolite supercages." Photochem.Photobiol., 2006, 82, 123-131.

(79) Yang, C. J.; Jockusch, S.; Vicens, M.; Turro, N.J.; Tan, W.; "Light-switching excimer probes for rapid protein monitoring incomplex biological fluids." Proc. Nat. Acad. Sci. USA, 2005, 102, 17278-17283.

(78) Martinez, C. G.; Jockusch, S.; Ruzzi, M.;Sartori, E.; Moscatelli, A. Turro, N. J.; Buchachenko, A. L.: "ChemicallyInduced Dynamic Electron Polarization Generated through the Interaction betweenSinglet Molecular Oxygen and Nitroxide Radicals" J. Phys. Chem. A, 2005, 109,10216-10221.

(77) Deo, P.; Deo, N.; Somasundaran, P.; Jockusch, S.;Turro, N. J.: "Conformational changes of pyrene-labeled polyelectrolytes withpH: Effect of hydrophobic modifications." J. Phys. Chem. B, 2005, 109,20714-20718.

(76) Washington, I.; Jockusch, S.; Itagaki, Y.; Turro,N. J.; Nakanishi, K.: "Superoxidation of Bisretinoids." Angew. Chem. 2005, 117,7259-7262; Angew. Chem. Int. Ed. 2005, 44, 7097-7100.

(75) Lee, K.; Kunjappu, J.; Jockusch, S.; Turro, N.J.; Widerschpan, T.; Zhou, J.; Snith, B. W.; Zimmerman, P.; Conley, W.:"Amplification of the Index of Refraction of Aqueous Immersion Fluids by IonicSurfactants" Proc. of SPIE, 2005, 5753, 537-553.

(74) Saito, H.; Sivaguru, J.; Jockusch, S.; Inoue, Y.,Adam, W., Turro, N. J.: "Stereoselective E/Z photoisomerization ofoxazolidinone functionalized enecarbamates: direct and triplet sensitizedirradiation." Chem. Commun., 2005, 3424-3426.

(73) Lee, K.; Jockusch, S.; Turro, N. J.; French, R.H.; Wheland, R. C.; Lemon, M. F.; Braun, A. M.; Widerschpan, T.; Dixon, D. A.;Li, L.; Marius, I.; Zimmerman, P.: "157 nm pellicles (thin films) forphotolithography: Mechanistic investigation of the VUV and UV-C photolysis offluorocarbons." J. Am. Chem. Soc., 2005, 127, 8320-8327.

(72) Jockusch, S.; Sivaguru, J.; Turro, N. J.;Ramamurthy, V.: "Direct measurement of singlet oxygen lifetime in zeolites bynear-IR phosphorescence." Photochem. Photobiol. Sci., 2005, 4, 403-405.

(71) Sivaguru, J.; Saito, H.; Poon, T.; Omonuwa, T.,Franz, R.; Jockusch, S.; Hooper, C., Inoue, Y., Adam, W., Turro, N. J.:"Stereoselective photooxidation of enecarbamates: Reactivity of ozone vssinglet oxygen." Org. Lett., 2005, 7, 2089-2092.

(70) Khalil, G. E.; Chang, A.; Gouterman, M.; Callis,J. B.; Dalton, L. R.; Turro, N. J.; Jockusch, S.: "Oxygen pressure measurementusing singlet oxygen emission." Rev. Sci. Instrum., 2005, 76, 054101
(69) Aydin, M.; Arsu, N.; Yagci, Y.; Jockusch,S.; Turro, N. J.: "Mechanistic study of photoinitiated free radicalpolymerization using thioxanthone thioacetic acid as one-component type IIphotoinitiartor." Macromolecules, 2005, 38, 4133-4138.

(68) Dyer, J.; Jockusch, S.; Balsanek, V.;Sames, D.; Turro, N. J.: "Two-photon induced uncaging of a reactiveintermediate. Multi-photon in situ detection of a potentially valuablelabel for biological applications" J. Org. Chem., 2005, 70, 2143-2147.

(67) Jockusch, S.; Li, Z.; Ju, J.; Turro, N. J.:"Two-photon excitation induced fluorescence of a tri-fluorophore labeled DNA."Photochem. Photobiol., 2005, 81, 238-241.

(66) Wines, T. H.; Somasundaran, P.; Turro, N. J.;Jockusch, S.; Ottaviani, M. F.: "Investigation of the mobility of amphiphilicpolymer - AOT reverse microemulsion systems using electron spin resonance." J.Colloids Interface Sci., 2005, 285, 318-325.

(65) Dukovic, G.; White, B. E.; Zhou, Z.; Wang, F.;Jockusch, S.; Steigerwald, M. L.; Heinz, T. F.; Friesner, R. A.; Turro, N. J.;Brus, L. E.: "Reversible Surface Oxidation and Efficient Luminescence Quenchingin Semiconductor Single-Wall Carbon Nanotubes." J. Am. Chem. Soc., 2004, 126,15269-15276.

(64) Ottaviani, M. F.; Jockusch, S.; Turro, N. J.;Tomalia, D. A.; Barbon, A.: "Interactions of Dendrimers with Selected AminoAcids and Proteins Studied by Continuous Wave EPR and Fourier Transform EPR"Langmuir, 2004, 20, 10238-10245.

(63) Lee, K.; Jockusch, S.; Turro, N. J.; French, R.H.; Wheland, R. C.; Lemon, M. F.; Braun, A. M.; Widerschpan, T.; Zimmerman, P.:"157 nm Pellicles for Photolithography: Mechanistic Investigation of the DeepUV Photolysis of Fluorocarbons." Proc. of SPIE, 2004, 5377, 1598-1605.

(62) Sivaguru, J.; Poon, T.; Franz, R.; Jockusch, S.; Adam,W.; Turro, N. J.: "Stereocontrol within Confined Spaces: EnantioselectivitivePhotooxidation of Enecarbamates inside Zeolite Supercages." J. Am. Chem. Soc.,2004, 126, 10816-10817.

(61) Poon, T.; Sivaguru, J.; Franz, R.; Jockusch, S.;Martinez, C.; Washington, I.; Adam, W.; Inoue, Y; Turro, N. J.: "Temperatureand Solvent Control of the Stereoselectivity in the Reactions of Singlet Oxygenwith Oxazolidinone-Substituted Enecarbamates." J. Am. Chem. Soc., 2004, 126,104989-10499.

(60) Jockusch, S.; Ren, R. X-F.; Jang, Y. P.; Itagaki,Y.; Vollmer-Snarr, H.; Sparrow, J. R.; Nakanishi, K.; Turro, N. J.:"Photochemistry of A1E, a Retinoid with a Conjugated Pyridinium Moiety:Competition between Pericyclic Photooxygenation and Pericyclization" J. Am.Chem. Soc., 2004, 126, 4646-4652.

(59) Pan, Z.; Somasundaran, P.; Turro, N. J.;Jockusch, S.: "Interactions of cationic dendrimers with hematitemineral" Colloids and Surfaces, A, 2004, 238, 123-126.

(58) Fede, J.-M., Jockusch, S; Lin, N.; Moss, R. A.;Turro, N. J.: "Aryloxy Radicals from Diaryloxydiazirenes: ?-Cleavege ofDiaryloxycarbenes of Excited Diazirines?" Org. Lett. 2003, 5, 5027-5030.

(57) Poon, T.; Turro, N. J.; Chapman, J.;Lakshminarasimhan, P.; Lei, X.; Jockusch, S.; Franz, R.; Washington, I.; Adam,W. Bosio, S. G.: "Stereochemical Features of the Physical and ChemicalInteractions of Singlet oxygen with Enecarbamates." Org. Lett. 2003, 5,4951-4953.

(56) Sivaguru, J.; Jockusch, S.; Turro, N. J.;Ramamurthy, V.: "Photoisomerization of 2,3-Diphenylcyclopropane-1-carboxylicAcid Derivatives" Photochem. Photobiol. Sci., 2003, 2, 1101-1106.

(55) Lei, X.-G.; Jockusch, S.; Ottaviani. M. F.;Turro, N. J.: "In situ ESR investigation of the addition of persistent benzylradicals to acrylates on ZSM-5 zeolites. Direct spectroscopic detection of theinitial steps in a supramolecular photopolymerization." Photochem. Photobiol.Sci., 2003, 2, 1095-1100.

(54) Deo, P.; Jockusch, S.; Ottaviani, M. F.;Moscatelli, A.; Turro, N. J.; Somasundaran, P. "Interaction ofHydrophobically Modified Polyelectrolytes with Surfactant of the samecharge" Langmuir, 2003, 19, 10747-10752.

(53) Deo, N.; Jockusch, S.; Turro, N. J.;Somasundaran, P.: "Surfactant Interactions with Zein Protein"Langmuir, 2003, 19, 5083-5088.

(52) Sparrow, J. R.; Vollmer-Snarr, H. R.; Zhou, J.;Jang,Y. P.; Jockusch, S.; Itagaki, Y.; Nakanishi, K.: "A2E-epoxides DamageDNA in Retinal Pigment Epithelial cells. VitaminsE and C and Other AntioxidantsInhibit A2E-epoxide formation" J. Biol. Chem. 2003, 278, 18207-18213.

(51) Bossmann, S. H.; Jockusch, S.; Schwarz, P.;Baumeister, B.; Goeb, S.; Schnabel, C.; Payawan, Jr., L.; Pokhrel, M. R.;Woerner, M.; Braun, A. M.; Turro, N. J.:"Ruthenium(II)-tris-bipyridine/titanium dioxide codoped zeolite Yphotocatalysts: II. Photocatalyzed degradation of the model pollutant2,4-Xylidine, evidence for percolation behavior" Photochem. Photobiol.Sci., 2003, 2, 477-486.

(50) Shailaja, J.; Lakshminarasimhan, P. H.; Pradhan,A.; Sunoj, R. B.; Jockusch, S.; Karthikeyan, S.; Uppili, S.; Chandrasekhar, J.;Turro, N. J.; Ramamurthy, V.: "Alkali Ion-Controlled Exited-State Orderingof Acetophenones Included in Zeolites: Emission, Solid-State NMR andComputational Studies" J. Phys. Chem. A, 2003, 107, 3187-3198
(49) Khudyakov, I. V.; Arsu, N.; Jockusch, S.;Turro, N. J.: "Magnetic and spin effects in the photoinitiation ofpolymerization" Designed Monomers & Polymers, 2003, 6, 91-101.

(48) Dursun, C.; Degirmenci, M.; Yagci, Y.; Jockusch,S.; Turro, N. J.: "Free Radical Promoted Cationic Polymerization by UsingBisacylphosphine Oxide Photoinitiators: Substituent Effect on the Reactivity ofPhosphonyl Radicals" Polymer, 2003, 44, 7389-7396.

(47) Cokbaglan, L.; Arsu, N.; Yagci, Y.; Jockusch, S.;Turro, N. J.: "2-Mercaptothioxanthone as a Novel Photoinitiator for FreeRadical Polymerization." Macromolecules, 2003, 36, 2649-2653.

(46) Bai, X.; Li, Z.; Jockusch, S.; Turro, N. J.; Ju,J.: "Photocleavage of a 2-Nitrobenzyl Linker Bridging a Fluorophore to the 5'End of DNA" Proc. Nat. Acad. Sci. USA, 2003, 100, 409-413.

(45) Ottaviani, M. F.; Turro, N. J.; Jockusch, S.;Tomalia, D. A.: "EPR Investigation of the adsorption of dendrimers onporous surfaces" J. Phys. Chem. B, 2003, 107, 2046-2053.

(44) Jockusch, S.; Turro, N. J.; Blackburn, F. R.:"Photochromism of 2H-Naphtho[1,2-b]pyans: A SpectroscopicInvestigation." J. Phys. Chem. A, 2002, 106, 9236-9241.

(43) Colley, C. S.; Grills, D. C.; Besley, N. A.;Jockusch, S.; Matousek, P.; Parker, W.; Towrie, M.; Turro, N. J.; Gill, P. M.W.; George, M. W.: "Probing the Reactivity of Photoinitiators for FreeRadical Polymerization: Time-Resolved IR Spectroscopic Study of BenzoylRadicals." J. Am. Chem. Soc., 2002, 124, 14952-14958.

(42) Jockusch, S; Turro, N. J.; Ottaviani, M. F.;Tomalia, D. A.: "An EPR and Fluorescence Depolarization Study ofIntermolecular Interactions of Dendrimers at Medium and Highly ConcentratedAqueous Solutions." J. Colloids Interface Sci., 2002, 256, 223-227.

(41) Kumar, C. V.; Buranaprapuk, A.; Sze, Ho Chou; Jockusch,S.; Turro, N. J.: "Chiral Protein Scissors: High Enantiomeric Selectivityfor Binding and its Effect on Protein Photocleavage Efficiency andSpecifity." Proc. Nat. Acad. Sci. USA, 2002, 99, 5810-5815.

(40) Turro, N. J.; Jockusch, S.; Lei, X.-G.: "SupramolecularEffects on the Dynamics of Radicals in MFI Zeolites: A Direct EPRInvestigation." J. Org. Chem. 2002, 67, 5779-5782.

(39) Turro, N. J.; Lei, X.-G.; Jockusch, S.; Li, W.;Liu, Z.; Abrams, L.; Ottaviani, M. F.: "An EPR Investigation of PersistentRadicals Produced from the Photolysis of Dibenzyl Ketones Adsorbrd on ZSM-5Zeolites." J. Org. Chem. 2002, 67, 2606-2618.

(38) Panmai, S.; Prud'home, R. K.; Peiffer, D. G.;Jockusch, S.; Turro, N. J.: "Interactions Between Hydrophobically ModifiedPolymers and Surfactants: A Fluorescence Study" Langmuir, 2002, 18,3860-3864.

(37) Turro, N. J.; P. H. Lakshminarasimhan; Jockusch,S; O'Brien, S. P.; Redl, F. X.: " A Spectroscopic Probe of the Surface ofIron Oxide Nanocrystals." Nanoletters, 2002, 2, 325-328.

(36) Ben-Shabat, S.; Itagaki, Y.; Jockusch, S.;Sparrow, J. R.; Nakanishi, K.; Turro, N. J.: "Formation of a Nona-oxiranefrom A2E, a Lipofuscin Fluorophore related to Macular Degradation, and Evidenceof Singlet Oxygen Involvement." Angew. Chem., 2002, 114, 842-845; Angew.Chem. Int. Ed., 2002, 41, 814-817.

(35) Ottaviani, M. F.; Favuzza, P.; Sacchi, B.; Turro,N.; Jockusch, S.; Tomalia, D. A.: "Interactions between StarburstDendrimers and Mixed DMPC/DMPA-Na Vesicles Studied by the Spin Label and theSpin Probe Techniques, Supported by TEM." Langmuir, 2002, 18, 2347-2357.

(34) Tong, A. K.; Jockusch, S.; Li, Z.; Zhu, H.-R.;Akins, D. L.; Turro, N. J.; Ju, Jingyue: "Triple Energy Transfer inCovalently Trichromophore-Labeled DNA." J. Am. Chem. Soc., 2001, 123,12923-12924.

(33) Pillips, K. E. S.; Katz, T. J.; Jockusch, S.;Lovinger, A. J.; Turro, N. J.: "Synthesis and Properties of an AggregatingHeterocyclic Helicene." J. Am. Chem. Soc., 2001, 123, 11899-11907.

(32) Jockusch, S.; Liu, Z.; Ottaviani, M. F.; Turro,N. J.: "Time Resolved CW-EPR Spectroscopy of Powdered Samples: ElectronSpin Polarization of a Nitroxyl Radical Adsorbed on NaY Zeolite, Generated byQuenching of Excited Triplet Ketones." J. Phys. Chem. B, 2001, 105,7477-7481.

(31) Jockusch, S.; Landis, M. S.; Freiermuth, B.;Turro, N. J.: "Photochemistry and Photophysics of ?-Hydroxy Ketones."Macromolecules, 2001, 34, 1619-1626.

(30) Uppili, S.; Marti, V.; Nikolaus, A.; Jockusch,S.; Adam, W.; Engel, P. S.; Turro, N. J.; Ramamurthy, V.:"Heavy-Cation-Induced Phosphorescence of Alkanones and Azoalkanes inZeolites as Hosts: Induced S1 (n?*) to T1 (n?*) Intersystem Crossing and S0 toT1 (n?*) Absorption." J. Am. Chem. Soc., 2000, 122, 11025-11026.

(29) Turro, N. J.; Lei, X.; Niu, S. Liu, Z.; Jockusch,S.; Ottaviani. M. F.: "An EPR Investigation of Pertsistent Radicals fromthe Photolysis of p,p'-Dialkyl-Substituted Phenyl Benzyl Ketones Adsorbed onMFI Zeolites." Org. Lett., 2000, 2, 3991-3994.

(28) Ottaviani, M. F.; Furida, F.; Casini, A.; Turro,N. J.; Jockusch, S.; Tomalia, D. A.; Messori, L.: "Formation ofSupramolecular Structures between DNA and Starburst Dendrimers Studied by EPR,CD, UV and Melting Profiles." Macromolecules, 2000, 33, 7842-7851.

(27) Ottaviani, M. F.; Favuzza, P.; Bigazzi, M.;Turro, N. J.; Jockusch, S.; Tomalia, D. A.: "TEM and EPR Investigation ofthe Competitive Binding of Uranyl Ions to Starburst Dendrimers and Liposomes.Potential Use of Dendrimers as Uranyl Ion Sponges." Langmuir, 2000, 16,7368-7372.

(26) Buranaprapuk, A.; Kumar, C. V.; Jockusch, S.;Turro, N. J.: "Photochemical Protein Scissors: Role of Aromatic Residueson the Binding Affinity and Photocleavage Efficiency by Pyrenyl Peptides."Tedrahedron, 2000, 56, 7019-7025.

(25) Schwarz, O.; van Loyen, D.; Jockusch, S.; Turro,N. J.; Duerr, H.: "Preparation and Application of new Ruthenium(II)polypyridyl Complexes as Sensitizers for Nanocrystalline TiO2." J.Photochem Photobiol. A: Chem., 2000, 132, 91-98.

(24) Jockusch, S.; Hirano, T.; Turro, N. J.: "ASpectroscopic Study of Diphenylmethyl Radicals and Diphenylmethyl CarbocationsStabilized by Zeolites." J. Phys. Chem. B, 2000, 104, 1212-1216.

(23) Nehira, T.; Parish, C. A.; Jockusch, S.; Turro,N. J.; Nakanishi, K.; Berova, N.: "Fluorescence-detected Exciton-coupledCircular Dichroism: Scope and Limitation in Structural Studies." J. Am.Chem. Soc., 1999, 38, 8681-8691.

(22) Jockusch, S.; Dedola, G.; Lem, G.; Turro, N. J.:"Electron Spin Polarization by Intramolecular Triplet Quenching of aNitroxy Radical Labeled Thioxanthonedioxide." J. Phys. Chem. B, 1999, 103,9126-9129.

(21) Jockusch, S.; Ramirez, J.; Sanghvi, K.; Nociti,R.;Turro, N. J.; Tomalia, D. A.: "Comparison of Nitrogen Core andEthylenediamine Core Starburst Dendrimers through Photochemical andSpectroscopic Probes." Macromolecules, 1999, 32, 4419-4423.

(20) Ottaviani, M. F.; Sacchi, B.; Turro, N. J.; Chen,W.; Jockusch, S.; Tomalia, D. A.: "An EPR Study of the Interaction betweenStarburst Dendrimers and Polynucleotides." Macromolecules, 1999, 32,2275-2282.

(19) Jockusch, S.; Turro, N. J.: "RadicalAddition Rate Constants to Acrylates and Oxygen: ?-Hydroxy and ?-Amino RadicalsProduced by Photolysis of Photoinitiators." J. Am. Chem. Soc., 1999, 121,3921-3925.

(18) Jockusch, S.; Turro, N. J.: "PhosphinoylRadicals - Structure and Reactivity. A Laser Flash Photolysis and Time ResolvedESR Investigation." J. Am. Chem. Soc., 1998, 3120, 11773-11777.

(17) Kumar, C. V.; Buranaprapuk, A.; Opiteck, G. J.;Moyer, M. B.; Jockusch, S.; Turro, N. J.: "Novel Photochemical Protease:Site-Specific Photocleavage of Hen Egg Lysozyme and Bovine Serum Albumin."Proc. Nat. Acad. Sci. US., 1998, 95, 10361-10365.

(16) Fang, K.; Hashimoto, M.; Jockusch, S.; Turro, N.J.; Nakanishi, K.: "A Bifunctional Photoaffinity Probe for Ligand/Receptor Interaction Studies." J. Am. Chem. Soc., 1998, 120, 8543-8544.

(15) Panmai, S.; Prud'home, R. K.; Peiffer, D. G.;Jockusch, S.; Turro, N. J.: "Rheology of solutions of hydrophobicallymodified polymers with spherical and rod-like surfactant micelles." Polym.Mater. Sci. Eng. , 1998, 79, 419-420.

(14) Ottaviani, M. F.; Matteini, P.; Brustolon, M.;Turro, N. J.; Jockusch, S. and Tomalia, D. A.: "Characterization ofStarburst Dendrimers and Vesicle Solutions and their Interactions by cw- andPulsed-EPR, TEM, and Dynamic Light Scattering." J. Phys. Chem. B, 1998,102, 6029-6039.

(13) Jockusch, S.; Koptyug, I. V.; McGarry, P. F.;Sluggett, G. W.; Turro, N. J. and Watkins, D. M.: "A Steady-State andPicosecond Pump-Probe Investigation of the Photophysics of an Acyl and aBis(acyl)posphine oxide," J. Am. Chem. Soc., 1997, 119, 1195-11501.

(12) McGarry, P.; Jockusch, S.; Fujiwara, Y.;Kaprinidis, N. A. and Turro, N. J.: "DMSO Solvent Induced Photochemistryin Highly Photostable Compounds. The Role of Intermolecular HydrogenBonding." J. Phys. Chem. A, 1997, 101, 764-767.

(11) Jockusch, S.; Timpe, H.-J.; Schnabel, W. andTurro, N. J.: "Photoinduced Energy and Electron Transfer between KetoneTriplets and Organic Dyes." J. Phys. Chem. A, 1997, 101, 440-445.

(10) Jockusch, S.; Timpe, H.-J.; Schnabel, W. andTurro, N. J.: "Photoreduction of Organic Dyes in Ketone AmineSystems." J. Photochem. Photobiol. A: Chem., 1996, 96, 129-136.

(9) Jockusch, S.; Lee, D.; Turro, N. J. and Leonard,E. F.: "Photoinactivation of Viruses: Adsorption of Methylene Blue,Thionine and Thiopyronine on Viruses." Proc. Nat. Acad. Sci. USA, 1996,93, 7446-7451.

(8) Ottaviani, M. F.; Turro, N. J.; Jockusch, S. andTomalia, D. A.: "Aggregational Process of the Positively Charged NitroxideSurfactants - CTAC and CAT16 - in the Presence of Starburst Dendrimers: An EPRStudy." Colloids and Surfaces, A, 1996, 115, 9-21.

(7) Ottaviani, M. F.; Turro, N. J.; Jockusch, S. andTomalia, D. A.: "Characterization of Starburst Dendrimers by EPR. 3.Aggregational Process of a Positively Charged Nitroxide Surfactant." J.Phys. Chem., 1996, 100, 13675-13686.

(6) Jockusch, S.; Turro, N. J. and Tomalia, D. A.:"Aggregation of Organic Dyes on Starburst Dendrimers." J. Inf.Recording, 1996, 22, 427-433.

(5) Jockusch, S.; Turro, N. J. and Tomalia, D. A.:"Aggregation of Methylene Blue adsorbed on Starburst Dendrimers."Macromolecules, 1995, 28, 7416-7418.

(4) Timpe, H.-J.; Jockusch, S. and Koerner, K.:"Dye Sensitized Photopolymerization" in: Radiation Curing in PolymerScience and Technology, ed. by Fouassier, J. P. and Rabek, J. F.; Elsevier,Barking, U.K. , Vol.2, 1993, 575-601.

(3) Jockusch, S.; Timpe, H.-J.; Fischer, Ch. -H. andSchnabel, W.: "On the Photoreduction of Crystal Violet, Phenosafranine andMethylene Blue by Benzophenone." J. Photochem. Photobiol. A: Chem., 1992,63, 217-226.

(2) Mueller, U.; Jockusch, S.; Haeusler, K.-G. andTimpe, H.-J.: "Photoinduced Crosslinking of Silicones. 8. Characterizationof Silicone Acrylate Networks." Angew. Makromol. Chem., 1992, 200, 61-76.

(1) Mueller, U.; Jockusch, S. and Timpe, H.-J.:"Photocrosslinking of Silicones. VI. Photocrosslinking Kinetics ofSilicone Acrylates and Methacrylates." J. Polym. Sci.; Part A: Polym. Chem.,1992, 30, 2755-2764.

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