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Biocompatible Gold Nanoparticle Arrays Photodeposited on Periodically Proton Exchanged Lithium Niobate
KTH, School of Engineering Sciences (SCI), Applied Physics.
KTH, School of Engineering Sciences (SCI), Applied Physics, Quantum Electronics and Quantum Optics, QEO.
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2016 (English)In: ACS BIOMATERIALS SCIENCE & ENGINEERING, ISSN 2373-9878, Vol. 2, no 8, 1351-1356 p.Article in journal (Refereed) Published
Abstract [en]

Photodeposition of silver nanoparticles onto chemically patterned lithium niobate having alternating lithium niobate and proton exchanged regions has been previously investigated. Here, the spatially defined photodeposition of gold nanoparticles onto periodically proton exchanged lithium niobate is demonstrated. It is shown that the location where the gold nanoparticles form can be tailored by altering the concentration of HAuCl4. This enables the possibility to sequentially deposit gold and silver in different locations to create bimetallic arrays. The cytocompatibility of photodeposited gold, silver, and bimetallic ferroelectric templates to osteoblast-like cells is also investigated. Gold samples provide significantly greater cell biocompatibility than silver samples. These results highlight a potential route for using photodeposited gold on lithium niobate as a template for applications in cellular biosensing.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2016. Vol. 2, no 8, 1351-1356 p.
Keyword [en]
ferroelectric, atomic force microscopy, photochemistry, metallic nanoparticles, metallic nanostructures, biocompatibility, patterning
National Category
Bio Materials
URN: urn:nbn:se:kth:diva-192738DOI: 10.1021/acs.biomaterials.6b00264ISI: 000381236500014OAI: diva2:974257

QC 20160926

Available from: 2016-09-26 Created: 2016-09-20 Last updated: 2016-09-26Bibliographically approved

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