dc.contributor.authorMoothanchery, Mohesh
dc.contributor.authorSeeni, Razina Z.
dc.contributor.authorXu, Chenjie
dc.contributor.authorPramanik, Manojit
dc.identifier.citationMoothanchery, M., Seeni, R. Z., Xu, C., & Pramanik, M. (2018). Photoacoustic microscopy imaging for microneedle drug delivery. Proceedings of SPIE - Photons Plus Ultrasound: Imaging and Sensing 2018, 10494, 104945P-.
dc.description.abstractThe recent development of novel transdermal drug delivery systems (TDDS) using microneedle technology allows micron-sized conduits to be formed within the outermost skin layers attracting keen interest in skin as an interface for localized and systemic delivery of therapeutics. In light of this, researchers are using microneedles as tools to deliver nanoparticle formulations to targeted sites for effective therapy. However, in such studies the use of traditional histological methods are employed for characterization and do not allow for the in vivo visualization of drug delivery mechanism. Hence, this study presents a novel imaging technology to characterize microneedle based nanoparticle delivery systems using optical resolution-photoacoustic microscopy (OR-PAM). In this study in vivo transdermal delivery of gold nanoparticles using microneedles in mice ear and the spatial distribution of the nanoparticles in the tissue was successfully illustrated. Characterization of parameters that are relevant in drug delivery studies such as penetration depth, efficiency of delivered gold nanoparticles were monitored using the system. Photoacoustic microscopy proves an ideal tool for the characterization studies of microneedle properties and the studies shows microneedles as an ideal tool for precise and controlled drug delivery.en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.format.extent6 p.en_US
dc.rights© 2018 Society of Photo-optical Instrumentation Engineers (SPIE). This paper was published in Proceedings of SPIE - Photons Plus Ultrasound: Imaging and Sensing 2018 and is made available as an electronic reprint (preprint) with permission of SPIE. The published version is available at: [http://dx.doi.org/10.1117/12.2287837]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en_US
dc.subjectTransdermal Deliveryen_US
dc.titlePhotoacoustic microscopy imaging for microneedle drug deliveryen_US
dc.typeConference Paper
dc.contributor.conferenceProceedings of SPIE - Photons Plus Ultrasound: Imaging and Sensing 2018en_US
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.description.versionPublished versionen_US

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