Gradient metallic structure and surface treatment to produce a gradient metallic structure

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United States of America Patent

PATENT NO 12060648
APP PUB NO 20230302561A1
SERIAL NO

17704042

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Abstract

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A method for microengineering a gradient structure on a metal surface. A metal surface including at least first, second, and third metal surface regions is exposed to a metal-removing agent. A portion of surface metal atoms is removed by the metal-removing agent in each of the first, second, and third metal surface regions. Sequential metal removal processes expose only the second and third regions to the metal-removing agent, followed by exposing only the third region to the metal-removing agent. A gradient metal surface is formed having different properties in each of the first, second, and third metal surface regions. In a further aspect, quantitative surface-enhanced Raman spectroscopy may be performed using the treated metal surface. An amount of an analyte is determined based on its position in one of the first, second, or third metal surface regions.

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Patent Owner(s)

Patent OwnerAddress
CITY UNIVERSITY OF HONG KONGTAT CHEE AVENUE KOWLOON HONG KONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Yang Yang Hong Kong, HK 28 107
Lu, Jian Hong Kong, HK 220 1580
Shen, Junda Hong Kong, HK 6 2
Zhou, Binbin Hong Kong, HK 17 52

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