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dc.contributor.authorShi, Yuzhien_US
dc.contributor.authorSha, Xiongen_US
dc.contributor.authorZhang, Yien_US
dc.contributor.authorChin, Lip Keten_US
dc.contributor.authorWu, Jiuhuien_US
dc.contributor.authorChen, Tianningen_US
dc.contributor.authorLiu, Ai Qunen_US
dc.contributor.editorDholakia, Kishanen
dc.contributor.editorSpalding, Gabriel C.en
dc.identifier.citationShi, Y. Z., Sha, X., Zhang, Y., Chin, L. K., Wu, J., Chen, T. N., & Liu, A. Q. (2017). Particle trapping and hopping in an optofluidic fishnet. Proceedings of SPIE - Optical Trapping and Optical Micromanipulation XIV 2017, 10347, 1034721I-. doi:10.1117/12.2272933en_US
dc.description.abstractParticle jumping between optical potentials has attracted much attention owing to its extensive involvement in many physical and biological experiments. In some circumstances, particle jumping indicates escaping from the optical trap, which is an issue people are trying to avoid. Nevertheless, particle jumping can facilitate the individual trap in each laser spot in the optical lattice and enable sorting and delivery of nanoparticles. Particle hopping has not been seen in fluid because Fluidic drag force dramatically reduce the dwell time of particle or break the potential well. Here, we observe particle hopping in the microchannel by three reasons, e.g., particle collision or aggregation, light disturbing by pretrapped particle and fake trapping position. We show that commonly ignored particle influence to the light could create a new isolated trapping position, where particle hops to the adjacent potential well. The hopping happens in an optofluidic fishnet which is comprised of discrete hotspots enabling 2D patterning of particles in the flow stream for the first time. We also achieve a 2D patterning of cryptosporidium in the microchannel. Our observed particle hopping in the flow stream completes the family of particle kinetics in potential wells and inspires new interests in the particle disturbed optical trapping. The 2D patterning of particles benefits the parallel study of biological samples in the flow stream and have potential on cell sorting and drug delivery.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.format.extent5 p.en
dc.relation.ispartofseriesProceedings of SPIE - Optical Trapping and Optical Micromanipulation XIVen
dc.rightsCopyright 2017 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.en_US
dc.subjectParticle Jumpingen_US
dc.subjectOptical Manipulationen_US
dc.subjectEngineering::Mechanical engineeringen_US
dc.titleParticle trapping and hopping in an optofluidic fishneten_US
dc.typeConference Paperen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.conferenceOptical Trapping and Optical Micromanipulation XIVen_US
dc.description.versionPublished versionen_US
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