In this section
@article{Jiang:2021:10.1021/acssensors.0c02109,
author = {Jiang, N and Davies, S and Jiao, Y and Blyth, J and Butt, H and Montelongo, Y and Yetisen, AK},
doi = {10.1021/acssensors.0c02109},
journal = {ACS Sensors},
pages = {915--924},
title = {Doubly photopolymerized holographic sensors},
url = {http://dx.doi.org/10.1021/acssensors.0c02109},
volume = {6},
year = {2021}
}
TY - JOUR
AB - Holographic sensors are two-dimensional (2D) photonic crystals that diffract narrow-band light in the visible spectrum to quantify analytes in aqueous solutions. Here, a holographic fabrication setup was developed to produce holographic sensors through a doubly polymerization system of a poly-2-hydroxyethyl methacrylate hydrogel film using a pulsed Nd:YAG laser (λ = 355 nm, 5 ns, 100 mJ). Wavelength shifts of holographic Bragg peak in response to alcohol species (0–100 vol %) were characterized. Diffraction spectra showed that the holographic sensors could be used for short-chain alcohols at concentrations up to 60 vol %. The reversibility of the sensor was demonstrated, exhibiting a response time of 7.5 min for signal saturation. After 30 cycles, the Bragg peak and color remained the same in both 20 and 60 vol %. The fabrication parameters were simulated in MATLAB using a 2D finite-difference time-domain algorithm to model the interference pattern and energy flux profile of laser beam recording in the hydrogel medium. This work demonstrates a particle-free holographic sensor that offers continuous, reversible, and rapid colorimetric readouts for the real-time quantification of alcohols.
AU - Jiang,N
AU - Davies,S
AU - Jiao,Y
AU - Blyth,J
AU - Butt,H
AU - Montelongo,Y
AU - Yetisen,AK
DO - 10.1021/acssensors.0c02109
EP - 924
PY - 2021///
SN - 2379-3694
SP - 915
TI - Doubly photopolymerized holographic sensors
T2 - ACS Sensors
UR - http://dx.doi.org/10.1021/acssensors.0c02109
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000635484500036&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - https://pubs.acs.org/doi/10.1021/acssensors.0c02109
VL - 6
ER -