Fluorescence microscopy study of protein adsorption at modified glassy carbon surfaces

被引:20
作者
Downard, AJ [1 ]
Jackson, SL
Tan, ESQ
机构
[1] Univ Canterbury, Dept Chem, MacDiarmid Inst Adv Mat & Nanotechnol, Christchurch 1, New Zealand
[2] Univ Canterbury, Sch Biol Sci, Christchurch 1, New Zealand
关键词
D O I
10.1071/CH04259
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Glassy carbon (GC) surfaces were modified with thin films by means of electrochemically assisted reduction of aryl diazonium salts and oxidation of primary amines. GC plates with modified and unmodified areas were exposed to solutions of fluorescently labelled bovine serum albumin (BSA-FITC). Fluorescence microscopy was found to be a simple and direct method for comparing adsorption of BSA-FITC between the different areas. Modification with methylbenzene, hexylbenzene, poly( ethylene glycol) benzene, and tetraethylene glycol diamine groups increases protein adsorption relative to unmodified GC. Hexylamine and the poly( ethylene glycol) diamine ED-2003 reduce protein adsorption. The results give insight into some factors controlling protein adsorption at these surface films.
引用
收藏
页码:275 / 279
页数:5
相关论文
共 26 条
[1]   Electrochemical oxidation of aliphatic amines and their attachment to carbon and metal surfaces [J].
Adenier, A ;
Chehimi, MM ;
Gallardo, I ;
Pinson, J ;
Vilà, N .
LANGMUIR, 2004, 20 (19) :8243-8253
[2]   Covalent modification of carbon surfaces by aryl radicals generated from the electrochemical reduction of diazonium salts [J].
Allongue, P ;
Delamar, M ;
Desbat, B ;
Fagebaume, O ;
Hitmi, R ;
Pinson, J ;
Saveant, JM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (01) :201-207
[3]   Mono- and multilayer formation by diazonium reduction on carbon surfaces monitored with atomic force microscopy "scratching" [J].
Anariba, F ;
DuVall, SH ;
McCreery, RL .
ANALYTICAL CHEMISTRY, 2003, 75 (15) :3837-3844
[4]   Functionalization of carbon nanotubes by electrochemical reduction of aryl diazonium salts: A bucky paper electrode [J].
Bahr, JL ;
Yang, JP ;
Kosynkin, DV ;
Bronikowski, MJ ;
Smalley, RE ;
Tour, JM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (27) :6536-6542
[5]   ELECTROCHEMICAL BONDING OF AMINES TO CARBON-FIBER SURFACES TOWARD IMPROVED CARBON-EPOXY COMPOSITES [J].
BARBIER, B ;
PINSON, J ;
DESARMOT, G ;
SANCHEZ, M .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1990, 137 (06) :1757-1764
[6]   Electrochemical and atomic force microscopy study of carbon surface modification via diazonium reduction in aqueous and acetonitrile solutions [J].
Brooksby, PA ;
Downard, AJ .
LANGMUIR, 2004, 20 (12) :5038-5045
[7]  
BROOKSBY PA, UNPUB J PHYS CHEM B
[8]  
BROOKSBY PA, UNPUB LANGMUIR
[9]   Stability of substituted phenyl groups electrochemically grafted at carbon electrode surface [J].
D'Amours, M ;
Bélanger, D .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (20) :4811-4817
[10]   ELECTROCHEMICAL OXIDATION OF AMINE-CONTAINING COMPOUNDS - A ROUTE TO THE SURFACE MODIFICATION OF GLASSY-CARBON ELECTRODES [J].
DEINHAMMER, RS ;
HO, M ;
ANDEREGG, JW ;
PORTER, MD .
LANGMUIR, 1994, 10 (04) :1306-1313