Next Article in Journal
A Study on the Improvement of Using Raw Lacquer and Electrospinning on Properties of PVP Nanofilms
Next Article in Special Issue
Process Oxygen Flow Influence on the Structural Properties of Thin Films Obtained by Co-Sputtering of (TeO2)x-ZnO and Au onto Si Substrates
Previous Article in Journal
ZnWO4 Nanoparticle Scintillators for High Resolution X-ray Imaging
Previous Article in Special Issue
Carbon Dots for Forensic Applications: A Critical Review
Article

Green Synthesis of [email protected] and [email protected]/Au ([email protected]) Inverse Opals for Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid

Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 300, Taiwan
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(9), 1722; https://doi.org/10.3390/nano10091722
Received: 2 August 2020 / Revised: 24 August 2020 / Accepted: 27 August 2020 / Published: 31 August 2020
We demonstrate a water-based synthetic route to fabricate composite inverse opals for simultaneous detection of ascorbic acid (AA), dopamine (DA), and uric acid (UA). Our process involves the conformal deposition of poly(3,4-ethylenedioxythiophene) (PEDOT) and PEDOT/Au on the skeletons of Ni inverse opals via cyclic voltammetric scans (CV) to initiate the electropolymerization of 3,4-ethylenedioxythiophene (EDOT) monomers. The resulting samples, [email protected], and [email protected]/Au inverse opals, exhibit a three-dimensional ordered macroporous platform with a large surface area and interconnected pore channels, desirable attributes for facile mass transfer and strong reaction for analytes. Structural characterization and material/chemical analysis including scanning electron microscope, X-ray photoelectron spectroscopy, and Raman spectroscopy are carried out. The sensing performances of [email protected] and [email protected]/Au inverse opals are explored by conducting CV scans with various concentrations of AA, DA, and UA. By leveraging the structural advantages of inverse opals and the selection of PEDOT/Au composite, the [email protected]/Au inverse opals reveal improved sensing performances over those of conventional PEDOT-based nanostructured sensors. View Full-Text
Keywords: colloidal crystals; inverse opals; Au nanoparticles; PEDOT; electrochemical sensing; ascorbic acid; dopamine; uric acid colloidal crystals; inverse opals; Au nanoparticles; PEDOT; electrochemical sensing; ascorbic acid; dopamine; uric acid
Show Figures

Figure 1

MDPI and ACS Style

Hung, P.-S.; Wang, G.-R.; Chung, W.-A.; Chiang, T.-T.; Wu, P.-W. Green Synthesis of [email protected] and [email protected]/Au ([email protected]) Inverse Opals for Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid. Nanomaterials 2020, 10, 1722. https://doi.org/10.3390/nano10091722

AMA Style

Hung P-S, Wang G-R, Chung W-A, Chiang T-T, Wu P-W. Green Synthesis of [email protected] and [email protected]/Au ([email protected]) Inverse Opals for Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid. Nanomaterials. 2020; 10(9):1722. https://doi.org/10.3390/nano10091722

Chicago/Turabian Style

Hung, Pei-Sung, Guang-Ren Wang, Wei-An Chung, Tze-Ting Chiang, and Pu-Wei Wu. 2020. "Green Synthesis of [email protected] and [email protected]/Au ([email protected]) Inverse Opals for Simultaneous Detection of Ascorbic Acid, Dopamine, and Uric Acid" Nanomaterials 10, no. 9: 1722. https://doi.org/10.3390/nano10091722

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop