Plasmonic-polymer hybrid hollow microbeads for surface-enhanced Raman scattering (SERS) ultradetection

Journal of Colloid and Interface Science
Anna TrojanowskaRamón A Alvarez-Puebla

Abstract

Hybrid composites are known to add functionality to plasmonic nanomaterials. Although these substrates can be produced by common synthetic methods, the percentage of metal loaded into the functional material is usually small. Herein, we exploit a phase inversion precipitation method to incorporate large amounts of silver nanoparticles inside the polymeric matrix of polysulfone microbeads. The composite material combines the high SERS activity resulting from the plasmonic coupling of highly interacting nanoparticles and the ability to accumulate analytes of the polysulfone porous support. This allows for the quantitative SERS detection down to the nanomolar level, with a liner response that extends over an impressive concentration range of five orders of magnitude.

References

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Jan 12, 2008·Journal of Colloid and Interface Science·Abdiaziz A FarahHicham Fenniri
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Oct 11, 2008·Small·Hyunhyub KoVladimir V Tsukruk
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Mar 29, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Nicolas Pazos-PerezRamon A Alvarez-Puebla
Oct 18, 2012·Angewandte Chemie·Ramón A Alvarez-Puebla, Luis M Liz-Marzán
Apr 9, 2014·Angewandte Chemie·Sebastian Schlücker
Oct 31, 2014·Scientific Reports·Setu KaseraOren A Scherman

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Citations

Mar 24, 2018·Chemical Society Reviews·Xiaolin HuangXiaoyuan Chen
Sep 14, 2017·Chemical Reviews·Shuaidi ZhangVladimir V Tsukruk

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