Chemically Stable High Resolution Surface Patterning by Thiolated DNA for Self Assembly of Nanocircuits on a Gold Nano-Dot Surface
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چکیده
منابع مشابه
Fast assembly of non-thiolated DNA on gold surface at lower pH.
In a typical protocol for attaching DNA to a gold electrode, thiolated DNA is incubated with the electrode at neutral pH overnight. Here we report fast adsorption of non-thiolated DNA oligomers on gold electrodes at acidic pH (i.e., pH ~3.0). The peak-to-peak potential difference and the redox peak currents in typical cyclic voltammetry of [Fe(CN)6](3-) are investigated to monitor the attachmen...
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DNA-based nano-biosensors are emerging scope in the field of biosensors. Many synthetic single stranded functional DNAs have been applied for development of such sensors, recently. Immobilization of DNA oligonucleotides on the surface of gold nanoparticles is a key step in the development of most colorimetric nano-biosensors. The bound DNA is usually thiolated and forms Au-S covalent bond to th...
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lytic approximation for the elasticity is given by Fp/ kbT 5 0.25*(12 x/L) 22 2 0.25 1 x/L, where F is the force applied across the ends, p is the persistence length, and kBT is the thermal energy. 21. D. E. Smith, T. T. Perkins, S. Chu, Macromolecules 29, 1372 (1996). 22. R. G. Larson, T. T. Perkins, D. E. Smith, S. Chu, Phys. Rev. E 55, 1794 (1997). 23. Following the example of W. D. Volkmuth...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2010
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927610058150