Activities of Working Party 5 “Environmental Effects of Sludge” Introductory Remarks

Author(s):  
T. W. G. Hucker
Author(s):  
N.J. Tao ◽  
J.A. DeRose ◽  
P.I. Oden ◽  
S.M. Lindsay

Clemmer and Beebe have pointed out that surface structures on graphite substrates can be misinterpreted as biopolymer images in STM experiments. We have been using electrochemical methods to react DNA fragments onto gold electrodes for STM and AFM imaging. The adsorbates produced in this way are only homogeneous in special circumstances. Searching an inhomogeneous substrate for ‘desired’ images limits the value of the data. Here, we report on a reversible method for imaging adsorbates. The molecules can be lifted onto and off the substrate during imaging. This leaves no doubt about the validity or statistical significance of the images. Furthermore, environmental effects (such as changes in electrolyte or surface charge) can be investigated easily.


1988 ◽  
Vol 39 (1) ◽  
pp. 216-216
Author(s):  
J GUY
Keyword(s):  

2006 ◽  
Author(s):  
Zhen Zhang ◽  
Remus Ilies ◽  
Richard D. Arvey

2012 ◽  
Author(s):  
Kathryn Kalafut ◽  
Numi Mitchell ◽  
Wendy Finn

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