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dc.contributor.authorZhou, Bingpu
dc.contributor.authorXiao, Xiao
dc.contributor.authorLiu, Ting
dc.contributor.authorGao, Yibo
dc.contributor.authorHuang, Yingzhou
dc.contributor.authorWen, Weijia
dc.date.accessioned2021-07-06T11:47:48Z
dc.date.available2021-07-06T11:47:48Z
dc.date.issued2016
dc.identifier.citationZhou, B., Xiao, X., Liu, T., Gao, Y., Huang, Y., & Wen, W. (2016). Real-time concentration monitoring in microfluidic system via plasmonic nanocrescent arrays. Biosensors and Bioelectronics, 77, 385–392. doi:10.1016/j.bios.2015.09.054
dc.identifier.issn1873-4235
dc.identifier.issn0956-5663
dc.identifier.pmid26436326
dc.identifier.doi10.1016/j.bios.2015.09.054
dc.identifier.urihttp://hdl.handle.net/10754/670029
dc.description.abstractIn this work, on-chip bio/chemical sensor was reported based on localized surface plasmon resonance of nanocrescent patterns fabricated via electron beam lithography. The nanocrescent arrays with different dimensional features exhibited controllable plasmonic properties in accordance with the simulation results based on the finite-difference time-domain model. The highest refractive index sensitivity of the fabricated samples was achieved to be ~699.2. nm/RIU with a figure of merit of ~3.1 when the two opposite crescents own a gap of ~43.3. nm. Such obtained plasmonic sensor was further integrated into the microfluidic system which can simply control the specific analyte concentrations via tuning the flow rate ratios between two injecting microstreams. Our method has successfully demonstrated the capability of the nanocrescent patterns as on-chip plasmonic bio/chemical sensor for real-time monitoring of dynamic concentrations in the microchannel.
dc.description.sponsorshipThe authors would like to acknowledge the support by Hong Kong RGC Grants HKUST 605411 and AOE/P-02/12 PG. The work was also partially supported by the Special Fund for Agro-scientific Research in the Public Interest, Ministry of Agriculture of the People's Republic of China No. 201303045. We would like to thank F. Qin and Prof. J.F. Wang from CUHK for the fruitful discussion.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0956566315304498
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in BIOSENSORS & BIOELECTRONICS. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in BIOSENSORS & BIOELECTRONICS, [77, , (2016)] DOI: 10.1016/j.bios.2015.09.054 . © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectNanocrescent
dc.subjectSurface plasmon resonance
dc.subjectMicrofluidics
dc.subjectBiosensor
dc.titleReal-time concentration monitoring in microfluidic system via plasmonic nanocrescent arrays
dc.typeArticle
dc.contributor.departmentNano Science and Technology Program and KAUST-HKUST Micro/Nanofluidic Joint Laboratory, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
dc.identifier.journalBIOSENSORS & BIOELECTRONICS
dc.identifier.wosutWOS:000366766900056
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
dc.contributor.institutionSoft Matter and Interdisciplinary Research Institute, College of Physics, Chongqing University, Chongqing, 400044, China
dc.contributor.institutionEnvironmental Science Programs, School of Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
dc.identifier.volume77
dc.identifier.pages385-392
kaust.personZhou, Bingpu
kaust.personWen, Weijia
dc.identifier.eid2-s2.0-84943228860


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