期刊文献+

平面金基质上硅壳的构筑

Silica Coating on Planar Gold Substrate
下载PDF
导出
摘要 成功地在平板金基质上构筑了硅壳.在构筑硅壳前,首先通过形成Au—S键将具有双官能团的4-巯基苯甲酸自组装到金膜上,再通过静电吸附,将3-氨丙基-三乙氧基硅烷偶连到4-巯基苯甲酸的末端羧基上,然后通过碱催化水解3-氨丙基-三乙氧基硅烷和四乙氧基硅烷,形成交联的Si—O—Si键,构筑成硅壳.利用原子力和扫描电子显微镜表征了硅壳的形貌,利用红外和X射线光电能谱研究了它的结构.此硅壳易于衍生成不同官能团的探针,可进一步用来构建分子传感和识别单元. A silica shell has been successfully fabricated onto a planar gold substrate. In fact, prior to depositing silica, 4-mercaptobenzoic acid (4-MBA) with the bifunctional groups was assembled on the surfaces of the gold film by forming Au-S bond. Due to the presence of the carboxyl groups of 4-MBA, 3-aminopropyltriethoxysilane could be readily deposited on 4-MBA via electrostatic interaction, then through Si-O-Si cross-linking, the tetraethyl orthosilicate formed a covedike structure under the base-catalyzed hydrolysis, covering the modified gold film core. The morphologies of the silica shell have been studied by means of atomic force microscopy and scanning electron microscopy, and its structures have been monitored through the reflection-absorption infrared Fourier transform and X-ray photoelectron spectroscopy. The silica shell can also be derivatized easily with numerous biofunctional groups, enhancing the application prospects of the core-shell material to the development of a molecular sensing/recognition unit.
出处 《化学学报》 SCIE CAS CSCD 北大核心 2007年第21期2484-2488,共5页 Acta Chimica Sinica
基金 辽宁省教育厅重大基础研究计划(No.2004C067)资助项目.
关键词 金膜 4-巯基苯甲酸 四乙氧基硅烷:核壳材料 gold film 4-mercaptobenzoic acid tetraethyl orthosilicate core-shell material
  • 相关文献

参考文献24

  • 1Chen,M.S.; Goodman,D.W.Science 2004,306,252.
  • 2Liz-Marzán,L.M.; Mulvaney,P.J.Phys.Chem.B 2003,107,7312.
  • 3Hardikar,V.V.; Matijevic,E.J.J.Colloid Interface Sci.2000,221,133.
  • 4Caruso,F.Adv.Mater.2001,13,11.
  • 5Lu,Y.; Yin,Y.; Xia,Y.Nano Lett.2002,2,785.
  • 6Salgueirino-Maceira,V.; Caruso,F.; Liz-Marzán,L.J.Phys.Chem.B 2003,107,10990.
  • 7Ung,T.; Liz-Marzán,L.M.; Mulvaney,P.Langmuir 1998,14,3740.
  • 8Liz-Marzán,L.M.; Giersig,M.; Mulvaney,P.Langmuir 1996,12,4329.
  • 9Green,M.; Harries,J.; Wakefield,G.; Taylor,R.J.Am.Chem.Soc.2005,127,12812.
  • 10Cho,G.; Fung,B.M.; Glatzhofer,D.T.; Lee,J.-S.; Shul,Y.-G.Langmuir 2001,17,456.

二级参考文献27

  • 1谈勇,丁少华,王毅,钱卫平.金纳米壳球体的制备及其潜在的生物学应用[J].化学学报,2005,63(10):929-933. 被引量:13
  • 2Xu,X., Asher,S.A.J.Am.Chem.Soc.2004,126,7940.
  • 3Kamata,K., Lu,Y., Xia,Y.J.Am.Chem.Soc.2003,125,2384.
  • 4Lee,K.T., Jung,Y.S., Oh,S.M.J.Am.Chem.Soc.2003,125,5652.
  • 5Chen,J.F., Ding,H.M., Wang,J.X., Shao,L.Biomaterials 2004,25,723.
  • 6Nicewarner-Pena,S.R., Griffith Freeman,R., Reiss,B.D.,He,L., Pena,D.J., Walton,I.D., Cromer,R., Keating,C.D., Natan,M.J.Science 2001,294,137.
  • 7Prodan,E., Radloff,C., Halas,N.J., Nordlander,P.Science 2003,320,419.
  • 8Charnay,C., Lee,A., Man,S., Moran,C.E., Radloff,C.,Bradley,R.K., Halas,N.J.J.Phys.Chem.B 2003,107,7327.
  • 9Sun,Y., Xia,Y.Science 2002,298,2176.
  • 10Chen,J., Wiley,B., McLellan,J., Xiong,Y., Li,Z.Y., Xia,Y.Nano Lett.2005,5,2058.

共引文献6

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部