Photocatalytic green fabrication of Au nanoparticles on ZnO nanorods modified membrane as flexible and photocatalytic active reusable SERS substrates

Sakir, Menekse; Salem, Samaa; Sanduvac, Senem Tapan; Şahmetlioğlu, Ertuğrul; Sarp, Gökhan; Önses, M. Serdar; Yılmaz, Erkan

doi:10.1016/j.colsurfa.2019.124088

Cited by 42 publications

(17 citation statements)

References 54 publications

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“…The absence of any additional peaks and shifts in the position of peaks suggest that Ag was not incorporated into the lattice of ZnO but was only present on the surface of ZnO. 33 In Figure 3b, Raman spectra of the PMMA/ZnO−Ag NF mat and PMMA/ZnO and ZnO nanorods were observed. The vibration bands ascribed to ZnO nanoparticles were at 100 cm −1 (low-wavenumber optical phonon E2 mode), 330 cm −1 (second-order spectrum of ZnO), 380 cm −1 (A1(T) optical phonon mode), 407 cm −1 (E1(T) optical phonon mode), and 438 cm −1 (E2 optical phonon band).…”

Section: Resultsmentioning

confidence: 98%

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Antibacterial, Antiviral, and Self-Cleaning Mats with Sensing Capabilities Based on Electrospun Nanofibers Decorated with ZnO Nanorods and Ag Nanoparticles for Protective Clothing Applications

Karagöz

Kiremitler

Sarp

et al. 2021

ACS Appl. Mater. Interfaces

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161

105

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The COVID-19 pandemic has clearly shown the importance of developments in fabrication of advanced protective equipment. This study investigates the potential of using multifunctional electrospun poly(methyl methacrylate) (PMMA) nanofibers decorated with ZnO nanorods and Ag nanoparticles (PMMA/ZnO–Ag NFs) in protective mats. Herein, the PMMA/ZnO–Ag NFs with an average diameter of 450 nm were simply prepared on a nonwoven fabric by directly electrospinning from solutions containing PMMA, ZnO nanorods, and Ag nanoparticles. The novel material showed high performance with four functionalities (i) antibacterial agent for killing of Gram-negative and Gram-positive bacteria, (ii) antiviral agent for inhibition of corona and influenza viruses, (iii) photocatalyst for degradation of organic pollutants, enabling a self-cleaning protective mat, and (iv) reusable surface-enhanced Raman scattering substrate for quantitative analysis of trace pollutants on the nanofiber. This multi-functional material has high potential for use in protective clothing applications by providing passive and active protection pathways together with sensing capabilities.

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Section: Resultsmentioning

confidence: 98%

“…The average crystallite size was 17.14 nm for Ag NPs. The absence of any additional peaks and shifts in the position of peaks suggest that Ag was not incorporated into the lattice of ZnO but was only present on the surface of ZnO …”

Section: Resultsmentioning

confidence: 99%

Antibacterial, Antiviral, and Self-Cleaning Mats with Sensing Capabilities Based on Electrospun Nanofibers Decorated with ZnO Nanorods and Ag Nanoparticles for Protective Clothing Applications

Karagöz

Kiremitler

Sarp

et al. 2021

ACS Appl. Mater. Interfaces

Self Cite

161

105

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“…In contrast, AR and ER are used widely in the food industry to produce soft drinks, candies, and children’s medications. In Figure A, the Raman spectral signals of ER appear at 1335, 1577, and 1616 cm –1 , ascribed to in-plane C–C deformation of the xanthene ring, the benzene ring doublet stretching mode, and the asymmetrical COO– stretching vibrational mode, respectively . The spectrum of AR featured characteristic signals at 490, 753, 1272, 1409, 1496, and 1581 cm –1 (Figure B), which are ascribed to O–S wagging, aromatic ring wagging, O–C stretching, H–C–H rocking, C–H wagging, and asymmetric stretching of the aromatic ring, respectively .…”

Section: Resultsmentioning

confidence: 98%

Aluminum Plasmonic Nanoclusters for Paper-Based Surface-Enhanced Raman Spectroscopy

Chang

et al. 2022

Anal. Chem.

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Although surface-enhanced Raman spectroscopy (SERS) can rapidly identify molecular fingerprints and has great potential for analysis, the need for delicate plasmonic substrates and complex laboratory instruments seriously limits its applicability for on-site detection. This paper describes the development of an inexpensive aluminum nanoparticle (AlNP)-decorated paper that functions as a facile SERS-based detection platform (Al-PSERS). Polydopamine-protected AlNPs were chemically synthesized and then simply drop-cast onto a hydrophobic cellulose paper, forming a monolayer AlNP cluster array. Because of the abundance of hot spots arising from the plasmonic clusters, the inherent quasi-three-dimensional structure of the cellulose fibers, and the concentration effect of the hydrophobic surface, the Al-PSERS provided significant enhancements to the signal of various analytes, measured using a portable 785 nm Raman spectrometer. Near-field optical simulations and experimental spectroscopic results revealed that the local electric fields and corresponding SERS signal intensities of the AlNP array exhibited clear particle-length and cluster-size dependencies. Therefore, the Al-PSERS could be optimized to provide high sensitivity (enhancement factor: 2 × 103) and excellent reproducibility (variation: 8.72%). Moreover, the optimal Al-PSERS was capable of detecting colorants and environmental pollutants; for example, the detection limits of allura red and benzo[a]pyrene reached as low as 3.5 and 0.15 ppm, respectively. Furthermore, the Al-PSERS could rapidly identify illegal (rhodamine B) and edible (allura red, erythrosine) colorants from a mixture of multiple colorants or from adulterated candies. Because it facilitates rapid detection, is of low cost, and has minimal technical requirements, Al-PSERS should be applicable to on-site detection in, for example, food inspection and environmental monitoring.

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“…Based on the target recognition events, biosensor receptors are included. Based on the transduction mechanisms, biosensors can be classified into optical biosensor (Raman scattering [39][40][41][42][43][44], surface plasmon resonance (SPR) [6,[45][46][47], fiber Bragg grating [48][49][50][51][52][53], fluorescent [54-58], chemiluminescence [36,59]), electrochemical biosensor [60][61][62][63][64], calorimetric biosensor [6,22,[65][66][67][68][69], and piezoelectric biosensor [70][71][72][73][74].…”

Section: The Present Of Microfluidic-integrated Biosensorsmentioning

confidence: 99%

Application of Microfluidics in Biosensors

Wang¹,

Ren²,

Zhang³

2020

Advances in Microfluidic Technologies for Energy and Environmental Applications

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Photocatalytic green fabrication of Au nanoparticles on ZnO nanorods modified membrane as flexible and photocatalytic active reusable SERS substrates

Cited by 42 publications

References 54 publications

Antibacterial, Antiviral, and Self-Cleaning Mats with Sensing Capabilities Based on Electrospun Nanofibers Decorated with ZnO Nanorods and Ag Nanoparticles for Protective Clothing Applications

Antibacterial, Antiviral, and Self-Cleaning Mats with Sensing Capabilities Based on Electrospun Nanofibers Decorated with ZnO Nanorods and Ag Nanoparticles for Protective Clothing Applications

Aluminum Plasmonic Nanoclusters for Paper-Based Surface-Enhanced Raman Spectroscopy

Application of Microfluidics in Biosensors

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