Nano-titanium dioxide enhanced biosensing of the interaction of dacarbazine with DNA and DNA bases

被引:44
作者
Song, Min [1 ]
Zhang, Renyun [1 ]
Wang, Xuemei [1 ]
机构
[1] SE Univ, Chien Shiung Wu Lab, State Key Lab Bioelect, Nanjing 210096, Peoples R China
基金
中国国家自然科学基金;
关键词
titanium dioxide; nanomaterials; electrochemistry; biomolecular recognition; DNA;
D O I
10.1016/j.matlet.2005.12.100
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The biomolecular binding behavior of anticancer drug dacarbazine (DTIC) in the presence of titanium dioxide (TiO2) nanoparticle interface has been studied by using electrochemical methods. The results indicate that the presence of TiO2 nanoparticles can obviously increase the binding affinity of DTIC to DNA or DNA bases and significantly enhance the detection sensitivity for the relative biomolecular recognition. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:2143 / 2147
页数:5
相关论文
共 28 条
[1]   Modeling the morphology and phase stability of TiO2 nanocrystals in water [J].
Barnard, AS ;
Zapol, P ;
Curtiss, LA .
JOURNAL OF CHEMICAL THEORY AND COMPUTATION, 2005, 1 (01) :107-116
[2]   TOXICOLOGY AND CARCINOGENESIS STUDIES OF DIETARY TITANIUM DIOXIDE-COATED MICA IN MALE AND FEMALE FISCHER-344 RATS [J].
BERNARD, BK ;
OSHEROFF, MR ;
HOFMAN, A ;
MENNEAR, JH .
JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH, 1989, 28 (04) :415-426
[3]   Influence of pH and ionic strength on adhesion of a wild strain of Pseudomonas sp to titanium [J].
Busalmen, JP ;
de Sánchez, SR .
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY, 2001, 26 (05) :303-308
[4]  
CAI RX, 1992, CANCER RES, V52, P2346
[5]   Surface charge properties of colloidal titanium dioxide in ethylene glycol and water [J].
Chadwick, MD ;
Goodwin, JW ;
Lawson, EJ ;
Mills, PDA ;
Vincent, B .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 203 (1-3) :229-236
[6]  
DEVERDIERE AC, 1994, CANCER CHEMOTH PHARM, V33, P504
[7]   Assembly and charge transfer in hybrid TiO2 architectures using biotin-avidin as a connector [J].
Dimitrijevic, NM ;
Saponjic, ZV ;
Rabatic, BM ;
Rajh, T .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (05) :1344-1345
[8]   Bioconjugated nanoparticles for DNA protection from cleavage [J].
He, XX ;
Wang, KM ;
Tan, WH ;
Liu, B ;
Lin, X ;
He, CM ;
Li, D ;
Huang, SS ;
Li, J .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (24) :7168-7169
[9]   A cooperative effect of bifunctionalized nanoparticles on recognition: Sensing alkali ions by crown and carboxylate moieties in aqueous media [J].
Lin, SY ;
Chen, CH ;
Lin, MC ;
Hsu, HF .
ANALYTICAL CHEMISTRY, 2005, 77 (15) :4821-4828
[10]  
Maness PC, 1999, APPL ENVIRON MICROB, V65, P4094