Biological functionalization and patterning of porous silicon prepared by Pt-assisted chemical etching

Biological functionalization and patterning of porous silicon prepared by Pt-assisted chemical etching
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Pt辅助化学刻蚀制备多孔硅的生物功能化及图案化

DOI:
10.1016/j.apsusc.2010.01.017
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发表时间:
2010-04
影响因子:
6.7
通讯作者:
Xiao, Shou-Jun
Xiao, Shou-Jun
中科院分区:
材料科学1区
文献类型:
--
作者:
Li, Hong-Fang;Han, Huan-Mei;Wu, Ya-Guang;Xiao, Shou-Jun

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在1:1:1的EtOH/HF/H2 O2溶液中,通过Pt辅助化学腐蚀p型Si(100)制备的多孔硅比阳极氧化多孔硅在空气和水介质中具有更长的耐久性,这对于生物医学应用是有利的。其表面SiHx(x=1和2)物种可以在微波辐射下与10-十一烯酸完全反应,随后的末端羧酸衍生化导致蛋白质的亲和捕获。我们采用了两种方法来生产蛋白质微阵列:光刻和点样。前者提供具有非常低的荧光背景的均质微阵列,而后者提供具有高噪声背景的非均质微阵列。
Porous silicon fabricated via Pt-assisted chemical etching of p-type Si (100) in 1:1:1 EtOH/HF/H2O2solution possesses a longer durability in air and in aqueous media than anodized one, which is advantageous for biomedical applications. Its surface SiHx (x=1 and 2) species can react with 10-undecylenic acid completely under microwave irradiation, and subsequent derivatizations of the end carboxylic acid result in affinity capture of proteins. We applied two approaches to produce protein microarrays: photolithography and spotting. The former provides a homogeneous microarray with a very low fluorescence background, while the latter presents an inhomogeneous microarray with a high noise background.
DOI: 10.1002/adma.19970091004
发表时间: 1997-10
期刊: Advanced Materials
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