Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/117709
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Nanoporous anodic alumina photonic crystals for optical chemo-and biosensing: fundamentals, advances, and perspectives
Author: Law, C.
Lim, S.
Abell, A.
Voelcker, N.
Santos, A.
Citation: Nanomaterials, 2018; 8(10):788-1-788-47
Publisher: MDPI
Issue Date: 2018
ISSN: 2079-4991
2079-4991
Statement of
Responsibility: 
Cheryl Suwen Law, Siew Yee Lim, Andrew D. Abell, Nicolas H. Voelcker and Abel Santos
Abstract: Optical sensors are a class of devices that enable the identification and/or quantification of analyte molecules across multiple fields and disciplines such as environmental protection, medical diagnosis, security, food technology, biotechnology, and animal welfare. Nanoporous photonic crystal (PC) structures provide excellent platforms to develop such systems for a plethora of applications since these engineered materials enable precise and versatile control of light-matter interactions at the nanoscale. Nanoporous PCs provide both high sensitivity to monitor in real-time molecular binding events and a nanoporous matrix for selective immobilization of molecules of interest over increased surface areas. Nanoporous anodic alumina (NAA), a nanomaterial long envisaged as a PC, is an outstanding platform material to develop optical sensing systems in combination with multiple photonic technologies. Nanoporous anodic alumina photonic crystals (NAA-PCs) provide a versatile nanoporous structure that can be engineered in a multidimensional fashion to create unique PC sensing platforms such as Fabry-Pérot interferometers, distributed Bragg reflectors, gradient-index filters, optical microcavities, and others. The effective medium of NAA-PCs undergoes changes upon interactions with analyte molecules. These changes modify the NAA-PCs' spectral fingerprints, which can be readily quantified to develop different sensing systems. This review introduces the fundamental development of NAA-PCs, compiling the most significant advances in the use of these optical materials for chemo- and biosensing applications, with a final prospective outlook about this exciting and dynamic field.
Keywords: Optical sensing; photonic crystals; anodization; nanoporous anodic alumina; surface chemistry
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
DOI: 10.3390/nano8100788
Grant ID: http://purl.org/au-research/grants/arc/CE140100003
Appears in Collections:Aurora harvest 8
Chemical Engineering publications

Files in This Item:
File Description SizeFormat 
hdl_117709.pdfPublished version3.04 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.