ISSN 0100-4042 Impresso
ISSN 1678-7064 On-Line

química nova

 

Orgão de divulgação da Sociedade Brasileira de Química
 

Química Nova On-Line
Volume 16, Número 4
Julho/Agosto 1993


Editorial
271 E. Bechara PDF
Artigo
275 Nucleophilic Aromatic Photosubstitution Reactions in Aqueous Solution and in Organized Media A. C. Tedesco, L. C. Nogueira, J. B. S. Bonilha, E. O. Alonso and F. H. Quina PDF
280 The Use of Basic Dyes as Photochemical Probes M. G. Neumann and M. J. Tiera PDF
288 Thermochemical Parameters for Molecules and Reaction Intermediates Containing the Diphenylmethyl Moiety C. Bohne and J. C. Scaiano PDF
294 A Kinetic Study on the Photodynamic Properties of the Xanthene Dye Merbromin (Mercurochrome) and its Aggregates with Amino Acids in Aqueous Solution G. Martínez, S. G. Bertolotti, O. E. Zimerman, N. A. García, D. O. Mártire and S. E. Braslavsky PDF
301 Biological Implications of Riboflavin Sensitized Photoproducts of Tryptophan. A Review. E. Silva PDF
304 Synthesis and Photochemistry of Oligonucleotides Containing Thiosubstituted Nucleobases. Model Photoreactions for DNA Photolesions A. Favre, P. Laugâa, A. Woisard, P. Clivio and J.-L. Fourrey PDF
308 Thermolysis of 3-[(Trimethylsilyloxy)methyl]-3,4,4-trimethyl-1,2-dioxetane: Activation Parameters, Chemiexcitation Yields and Deprotection A. L. Baumstark, T. Baranowski and P. C. Vasquez PDF
312 Triplet Carbonyl Species Generated from 3-Hidroxymethyl-3,4,4-trimethyl-1,2-dioxetane (HTMD) Induce on cis,trans Isomerization of Carotenóids H. Sies, M. Hanusch, W. Stahl and A. R. Sundquist PDF
316 Furocoumarin Dioxetanes and Hydroperoxides as Novel Photobiological DNA-Damaging Agents W. Adam, T. Mosandl, D. Ramaiah, C. R. Saha-Möller, B. Epe and D. Wild PDF
321 Luminescent Products from Ozonolysis Reactions K. R. Kopecky PDF
325 Singlet Oxygen Oxidation of Organophosphorus Compounds: Cooxidation of Olefin with Phosphadioxirane T. Akasaka, I. Kita, M. Haranaka and W. Ando PDF
328 Genetic Deleterious Effects of Singlet Oxygen C. F. M. Menck, P. Di Mascio, L. F. Agnez, D. T. Ribeiro and R. C. Oliveira PDF
337 Polyamine Content and Cell Cycle in a Unicellular Alga. Data are Consistent with Polyamines' Function of Protecting DNA against Oxidative Damage by Singlet Oxygen Y.-H. Mei, T. Wilson and A. U. Khan PDF
343 Spectroscopic Studies of Aggregation and Autoxidation Properties of the Polyene Antibiotic Amphotericim B S. Schreier and M. T. Lamy-Freund PDF
350 Peroxidase Catalyzed Electronic Excitations in Brazil and Canada: Isobutyraldehyde and Indole-Acetic Acid. The Importance of the Initiation Step H. B. Dunford PDF
354 Phagocyte Luminescence: from Quantum Mechanical Considerations to Clinical Applications R. C. Allen PDF
360 Stoichiometric Ratios of Reactive Oxygen Species Production by Polymorphonuclear Leukocites A. G. Prat, M. Galleano, A. S. Llera and A. Boveris PDF
365 Hydroxyl Radical Formation in Biological Systems I. Yamazaki PDF
370 In vivo Free Radical Formation Monitored by the Ascorbyl Radical M. A. Pedro, M. Gatty and O. Augusto PDF
373 Enhanced Urinary Spontaneous Visible Luminescence in Smokers E. A. Lissi, R. M. Salim-Hanna, L. A. Rojas, C. Silva and L. A. Videla PDF
377 Oxidative DNA Damage and Homeostasis of Intracellular Iron and Copper Ions R. Meneghini, E. A. L. Martins and M. Calderaro PDF
381 The Role of Ca2+ in the Process of Mitochondrial Damage Associated with Oxidative Stress A. E. Vercesi PDF
385 A Free Radical Hypothesis of Lead Poisoning and Inborn Porphyrias Associated with 5-Aminolevulinic Acid Overload E. J. H. Bechara, M. H. G. Medeiros, H. P. Monteiro, M. Hermes-Lima, B. Pereira, M. Demasi, C. A. Costa, D. S. P. Abdalla, J. Onuki, C. M. A. Wendel and P. Di Mascio PDF
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