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學(xué)術(shù)活動(dòng)

學(xué)術(shù)報告 《Diatom Photonic Crystal Biosensors》

活動(dòng)時(shí)間: 活動(dòng)地點(diǎn): 發(fā)布時(shí)間:2017年09月04日 16:58

報告時(shí)間:2017年9月6日(周三)14:30-16:30

報告地點(diǎn):東校區信息館401學(xué)術(shù)報告廳

報告題目:Diatom Photonic Crystal Biosensors(《硅藻光子晶體生物傳感器》)

報告人:王小龍,教授,Oregon State University

報告人簡(jiǎn)介:王小龍,2000年獲清華大學(xué)材料科學(xué)與工程學(xué)士,2003年獲中科院半導體所固體電子學(xué)碩士,2006年獲美國得克薩斯大學(xué)奧斯汀分校電子計算機工程博士。在2007年至2011年期間,王博士在美國Omega Optics公司從事科研工作,自2011年9月至今在俄勒岡州立大學(xué)電子計算機學(xué)院任職,現為副教授(終身教職)。

王博士的主要科研方向為用于光通信和光學(xué)傳感的微納光子器件研究,其研究工作獲得美國自然科學(xué)基金,衛生署,空軍科學(xué)辦公室,俄勒岡州政府和能源部以及惠普公司等工業(yè)界的多項資助。王博士作為第一作者或通訊作者在國際頂級刊物上發(fā)表過(guò)70多篇論文,包括Nanoscale,Sensors & Actuators:B. Chemical,Biophotonics,Optical Express,Applied Physical Letters等,并獲多項專(zhuān)利。王博士是IEEE,OSA和SPIE高級會(huì )員,至今做過(guò)80多場(chǎng)學(xué)術(shù)報告,其中包括12個(gè)大會(huì )的特邀報告。

Abstract

Photonic crystals can manipulate light in unique manners and have played increasingly important roles as optical biosensors. Diatoms are microalgae found in every habitat where water is present. Their abundance and wide distribution make them ideal materials for a wide range of applications as living photonic crystals.

In this seminar, I will discuss the use of diatom photonic crystals with plasmonic nanoparticles as ultra-sensitive, low-cost substrates for surface-enhanced Raman scattering (SERS) sensing. Our research shows that such hybrid plasmonic-photonic crystal nanostructures can improve the SERS detection limit by 100× for immuno-assay biosensing.

I will also discuss the recently found microscopic fluidic flow induced by the evaporation of liquid droplet on diatom photonic crystals. At last, I will present a facile method for instant on-site separation and detection of analytes by thin layer chromatography (TLC) in tandem with SERS spectroscopy using high density diatomite thin film. Our research suggests that such cost-effective, multi-functional photonic crystal biosensors enabled by diatom biosilica may open a new route for lab-on-chip systems and possess significant engineering potentials for chemical and biological sensing.

信息科學(xué)與工程學(xué)院

2017年9月4日