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This paper focuses on the effects of a vacuum ultraviolet (VUV) surface treatment process on the interconnections for flip chip and 3-D integration. Organic contaminants that hinder reliable bonding are broken down and eliminated from the bumps and pad surfaces by irradiation with UV light at a wavelength of 172 nm at room temperature. There is no charge buildup, no temperature increase, and no ion...
In this paper, a new approach to improve long term stability of electro-enzymatic glucose sensors is presented. Self-assembled monolayers (SAMs) are employed for surface treatment of the gold electrodes to improve adhesion. Three types of functional alkylthiols, namely 11-amino-1-undecanethiol hydrochloride, 1-hexadecanethiol (1- hexadecanthiol) and 1,9-nonanedithiol, and bovine serum albumin (BSA)...
With the protection of sodium oleate, Au and Ag nanoparticles colloid solutions were produced through reducing HAuCl 4 and AgNO 3 separately with NaBH 4 in an aqueous solution. Monolayers of Au, Ag nanoparticles and sodium oleate were self-assembled on the fresh active surface of the copper electrode. Comparing with the monolayers of the sodium oleate, the self-assembled monolayers...
An immunosensor for measuring antigen-antibody binding by nanogold particles enhancement was presented here. A gold plate electrode was modified by a SAM (self-assembled monolayer) of 11-mercaptoundecanioc acid. Then sheep anti-rabbit IgG was immobilized onto the end of the 11-mercaptoundecanioc acid. With that the gold electrode was exposed to the mixed solution of rabbit IgG and nanogold labeled...
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