Laser techniques in the study of drug photochemistry

被引:37
作者
Cosa, G [1 ]
Scaiano, JC [1 ]
机构
[1] Univ Ottawa, Dept Chem, Ottawa, ON K1N 6N5, Canada
关键词
D O I
10.1562/2004-04-24-IR-153.1
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
This review describes the application of different laser time-resolved techniques, such as time-resolved fluorescence, phosphorescence and laser flash photolysis, to elucidate the mechanism of drug photodegradation. The assignment of transient species based on their luminescence or absorption spectra and based on their reactivity to various quenchers is illustrated. The mathematical expressions used in fitting measured transient decays over time are also discussed. Practical situations found in the literature and relevant to drug photodegradation illustrate different examples. The importance of laser power, concentration and absorbance of the ground state, as well as other parameters intrinsic to laser techniques are discussed.
引用
收藏
页码:159 / 174
页数:16
相关论文
共 93 条
[21]  
Cosa G, 2001, PHOTOCHEM PHOTOBIOL, V73, P585, DOI 10.1562/0031-8655(2001)073<0585:PPOFDD>2.0.CO
[22]  
2
[23]  
COSA G, 2002, THESIS U OTTAWA OTTA
[24]   MOLECULAR MECHANISM OF DRUG PHOTOSENSITIZATION .2. PHOTOHEMOLYSIS SENSITIZED BY KETOPROFEN [J].
COSTANZO, LL ;
DEGUIDI, G ;
CONDORELLI, G ;
CAMBRIA, A ;
FAMA, M .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1989, 50 (03) :359-365
[25]   ELECTRON-TRANSFER REACTIONS FROM AROMATIC CARBONYL TRIPLETS TO PARAQUAT DICATION [J].
DAS, PK .
TETRAHEDRON LETTERS, 1981, 22 (14) :1307-1310
[26]   REACTION OF TERT-BUTOXY RADICALS WITH PHENOLS - COMPARISON WITH THE REACTIONS OF CARBONYL TRIPLETS [J].
DAS, PK ;
ENCINAS, MV ;
STEENKEN, S ;
SCAIANO, JC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (14) :4162-4166
[27]  
delaPena D, 1997, PHOTOCHEM PHOTOBIOL, V65, P828
[28]   Transient species in the photochemistry of tiaprofenic acid and its decarboxylated photoproduct [J].
Encinas, S ;
Miranda, MA ;
Marconi, G ;
Monti, S .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1998, 68 (05) :633-639
[29]   ABSOLUTE KINETICS OF HYDROGEN ABSTRACTION FROM ALPHA-TOCOPHEROL BY SEVERAL REACTIVE SPECIES INCLUDING AN ALKYL RADICAL [J].
EVANS, C ;
SCAIANO, JC ;
INGOLD, KU .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (12) :4589-4593
[30]   Photoinduced C-F bond cleavage in some fluorinated 7-amino-4-quinolone-3-carboxylic acids [J].
Fasani, E ;
Negra, FFB ;
Mella, M ;
Monti, S ;
Albini, A .
JOURNAL OF ORGANIC CHEMISTRY, 1999, 64 (15) :5388-5395