Imaging of single polyethylenimine polymers adsorbed on negatively charged latex spheres by chemical force microscopy

被引:56
作者
Akari, S [1 ]
Schrepp, W [1 ]
Horn, D [1 ]
机构
[1] BASF AG,POLYMER RES DIV,D-67056 LUDWIGSHAFEN,GERMANY
关键词
D O I
10.1021/la9507545
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this study scanning force microscopy was applied to image single polyethylenimine (PEI) polymers adsorbed onto negatively charged latex spheres. The tip of an atomic force microscope was chemically modified to induce a strong chemical interaction to the PEI molecules. Operating the atomic force microscope in the constant height mode, chemical imaging by measuring the normal force as well as the friction force was achieved and high image contrast could be obtained. The results demonstrate that polymer adsorption can be visualized directly.
引用
收藏
页码:857 / 860
页数:4
相关论文
共 13 条
[1]   CHEMICAL IMAGING BY SCANNING FORCE MICROSCOPY [J].
AKARI, S ;
HORN, D ;
KELLER, H ;
SCHREPP, W .
ADVANCED MATERIALS, 1995, 7 (06) :549-551
[2]  
AKARI S, UNPUB BER BUNSEN GES
[3]   ELECTRIC DOUBLE-LAYER FORCES IN THE PRESENCE OF POLY-ELECTROLYTES [J].
AKESSON, T ;
WOODWARD, C ;
JONSSON, B .
JOURNAL OF CHEMICAL PHYSICS, 1989, 91 (04) :2461-2469
[4]   ATOMIC FORCE MICROSCOPE [J].
BINNIG, G ;
QUATE, CF ;
GERBER, C .
PHYSICAL REVIEW LETTERS, 1986, 56 (09) :930-933
[5]   FUNCTIONAL-GROUP IMAGING BY CHEMICAL FORCE MICROSCOPY [J].
FRISBIE, CD ;
ROZSNYAI, LF ;
NOY, A ;
WRIGHTON, MS ;
LIEBER, CM .
SCIENCE, 1994, 265 (5181) :2071-2074
[6]   SCANNING TUNNELING MICROSCOPY AND ATOMIC FORCE MICROSCOPY - APPLICATION TO BIOLOGY AND TECHNOLOGY [J].
HANSMA, PK ;
ELINGS, VB ;
MARTI, O ;
BRACKER, CE .
SCIENCE, 1988, 242 (4876) :209-216
[7]  
Horn D., 1991, PAPER CHEM, P44
[8]  
HORN D, 1980, POLYM AMINES AMMONIU, P333
[9]   SELF-ASSEMBLED ORGANIC FILMS ON GOLD AND SILVER [J].
KELLER, H ;
SCHREPP, W ;
FUCHS, H .
THIN SOLID FILMS, 1992, 210 (1-2) :799-802
[10]   ADSORPTION OF BIFUNCTIONAL ORGANIC DISULFIDES ON GOLD SURFACES [J].
NUZZO, RG ;
ALLARA, DL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (13) :4481-4483