Biocompatible Gold Nanoparticle Arrays Photodeposited on Periodically Proton Exchanged Lithium Niobate

N. Craig Carville; Sabine M. Neumayer; Michele Manzo; Katia Gallo; Brian J. Rodriguez

doi:10.1021/acsbiomaterials.6b00264

Biocompatible Gold Nanoparticle Arrays Photodeposited on Periodically Proton Exchanged Lithium Niobate

N. Craig Carville, Sabine M. Neumayer, Michele Manzo, Katia Gallo, Brian J. Rodriguez

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1351-1356
Number of pages	6
Journal	ACS Biomaterials Science and Engineering
Volume	2
Issue number	8
DOIs	https://doi.org/10.1021/acsbiomaterials.6b00264
State	Published - Aug 8 2016
Externally published	Yes

Funding

This work was also supported by the Swedish Scientific Research Council (VR 622-2010-526 and 621-2011-4040) and the ADOPT Linnaeus Centre for Advanced Optics and Photonics in Stockholm. The AFM used for this work was funded by Science Foundation Ireland (SFI07/IN1/B931). An optical microscope in the UCD Conway Imaging Core Facility was used in this work.

Funders	Funder number
Swedish Scientific Research Council	621-2011-4040, VR 622-2010-526
Science Foundation Ireland	SFI07/IN1/B931
University College Dublin

Keywords

atomic force microscopy
biocompatibility
ferroelectric
metallic nanoparticles
metallic nanostructures
patterning
photochemistry

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10.1021/acsbiomaterials.6b00264

Cite this

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abstract = "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.",

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AU - Rodriguez, Brian J.

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AB - 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.

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Biocompatible Gold Nanoparticle Arrays Photodeposited on Periodically Proton Exchanged Lithium Niobate

Abstract

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Keywords

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