3D-Printed Peptide-Hydrogel Nanoparticle Composites for Surface-Enhanced Raman Spectroscopy Sensing

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Title: 3D-Printed Peptide-Hydrogel Nanoparticle Composites for Surface-Enhanced Raman Spectroscopy Sensing
Authors: Almohammed, SawsanAlruwaili, MahaReynaud, Emmanuel G.Redmond, GarethRice, James H.Rodriguez, Brian J.
Permanent link: http://hdl.handle.net/10197/10962
Date: 26-Jul-2019
Online since: 2019-08-12T07:12:01Z
Abstract: Precise control over the arrangement of plasmonic nanomaterials is critical for label-free single-molecule surface-enhanced Raman spectroscopy (SERS)-based sensing applications. SERS templates should provide high sensitivity and reproducibility and be cost-effective and easy to prepare. Additive manufacturing by extrusion-based three-dimensional (3D) printing is an emerging technique for the spatial arrangement of nanomaterials and is a method that may satisfy these SERS template requirements. In this work, we use 3D printing to produce sensitive and reproducible SERS templates using a fluorenylmethyloxycarbonyl diphenylalanine (Fmoc-FF) hydrogel loaded with silver or gold nanoparticles. The Fmoc-FF template allows the detection of low Raman cross-section molecules such as adenine at concentrations as low as 100 pM.
Funding Details: Enterprise Ireland
European Commission Horizon 2020
Science Foundation Ireland
metadata.dc.description.othersponsorship: The Ministry of Higher Education of Saudi Arabia under the King Abdullah Scholarship Program
Type of material: Journal Article
Publisher: American Chemical Society (ACS)
Journal: ACS Applied Nano Materials
Issue: 2
Start page: 5029
End page: 5034
Copyright (published version): 2019 American Chemical Society
Keywords: 3D bioprintingAdditive manufacturingPeptidesFmocDiphenylalanineRamanSERSSERRS
DOI: 10.1021/acsanm.9b00940
Language: en
Status of Item: Peer reviewed
Appears in Collections:Physics Research Collection

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