ELECTROSTATIC CHARACTERIZATION OF BIOLOGICAL AND POLYMERIC SURFACES BY ELECTROSTATIC FORCE MICROSCOPY

被引：13

作者：

LENG, Y ^{[1
]}

WILLIAMS, CC ^{[1
]}

机构：

[1] UNIV UTAH,DEPT PHYS,SALT LAKE CITY,UT 84112

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1994年 / 93卷

关键词：

ATOMIC FORCE MICROSCOPY; ELECTROSTATIC FORCE MICROSCOPY; 2-HYDROXYETHYL METHACRYLATE; SURFACE CHARGE; TETRAFLUOROETHYLENE-CO-HEXAFLUOROPROPYLENE;

D O I：

10.1016/0927-7757(94)02922-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An electrostatic force microscope (EFM) is used to characterize the properties of biological and polymeric surfaces in air. The study of red blood cells, modified Teflon FEP ((poly) tetrafluoroethylene-co-hexafluoropropylene) films and cross-linked HEMA ((poly) 2-hydroxyethyl methacrylate) contact lens material reveals the potential of the EFM for electrostatic surface characterization. The ability of the EFM to measure surface charge density and to visualize dielectric variation on a surface is shown. The influence of surface chemistry (hydrophilic or hydrophobic) and humidity on surface charge measurement is also discussed.

引用

页码：335 / 341

页数：7

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