Modified Ag nanoparticles on the regular array structure to improve the optical properties

Hao, Zongshuo; Guo, Liting; Cao, Hongwen; Li, Na; Cao, Lipeng; Liu, H.L.; Jiao, Tifeng; Wang, Mingli

doi:10.1016/j.jlumin.2021.118684

Cited by 44 publications

(11 citation statements)

References 42 publications

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“…So, we select the 532 nm laser as the excitation source. 67 The absorption of MB on ZnO or ZnO/Ag3 shows blue shift comparing with that of MB on Si/SiO 2 substrate, proving that MB successfully modified ZnO or ZnO/Ag3 surfaces. It is supposed that 600 nm band is caused by the interaction between MB molecules and ZnO surface, which results in the formation of the MB–ZnO complex charge transfer.…”

Section: Resultsmentioning

confidence: 82%

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Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue

Phạm

Dien³

et al. 2022

RSC Adv.

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Section: Resultsmentioning

confidence: 82%

“… 65,66 UV-Vis absorption spectrum is often used to find suitable excitation wavelength of SERS substrate. 67 Fig. 5d shows the UV-Vis absorption spectrum of MB on a Si/SiO 2 substrate compared with that of MB adsorbed on ZnO or ZnO/Ag3.…”

Section: Resultsmentioning

confidence: 99%

Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue

Phạm

Dien³

et al. 2022

RSC Adv.

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“…Three-dimensional finite-difference time-domain (3D-FDTD) method is one of the most widely used analytical methods in dealing with the interaction between electromagnetic fields and scatterers of arbitrary shapes [41]. The main idea is to directly reflect the time-domain characteristics of electromagnetic fields by solving the finite difference equation under appropriate initial and boundary conditions, and use clear and vivid images to describe complex physical processes [42].…”

Section: Electromagnetic Field Simulation and Ef Calculationmentioning

confidence: 99%

Ag Nanoislands Modified Carbon Fiber Nanostructure: A Versatile and Ultrasensitive Surface-Enhanced Raman Scattering Platform for Antiepileptic Drug Detection

Shi

Han

et al. 2021

Coatings

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A high-efficiency surface-enhanced Raman scattering (SERS) detection method with ultra-high sensitivity has been widely applied in drug component detection to optimize the product quality verification standards. Herein, a controllable strategy of sputtering Ag nanoislands on carbon fiber (C-fiber) via magnetron sputtering technology was proposed to fabricate a versatile Ag-C-fiber SERS active substrate. A wide range of multi-level electromagnetic enhancement “hot spots” distributed on Ag-C-fiber nanostructures can efficiently amplify Raman signals and the experimental enhancement factor (EEF) value was 3.871 × 106. Furthermore, substantial “hot spots” of large-scale distribution guaranteed the superior reproducibility of Raman signal with relative standard deviation (RSD) values less than 12.97%. Limit of detection (LOD) results indicated that when crystal violet (CV) is employed as probe molecule, the LOD was located at 1 × 10−13 M. By virtue of ultra-sensitivity and good flexibility of the Ag-C-fiber nanotemplate, Raman signals of two kinds of antiepileptic drugs called levetiracetam and sodium valproate were successfully obtained using an SERS-based spectral method. The Ag-C-fiber SERS detection platform demonstrated a good linear response (R2 = 0.97486) in sensing sodium valproate concentrations in the range of 1 × 103 ng/μL−1–1 ng/μL. We believe that this reliable strategy has potential application for trace detection and rapid screening of antiepileptic drugs in the clinic.

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“…Among them, hybrid nanomaterials have recently attracted a lot of attention in nanotechnology since they can change the properties of individual particles as well as provide new and improved capabilities [ 26 ]. Due to their interaction or superior qualities to their components, hybrid nanomaterials, made up of two or more diverse functional compositions, have established a key role in numerous basic applications [ 27 , 28 , 29 ]. Munir et al have reported that NiFe 2 O 4 /ZnO demonstrates significant photocatalytic and antibacterial activities compared to the pure ZnO nanoparticles [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

An Eco-Benign Biomimetic Approach for the Synthesis of Ni/ZnO Nanocomposite: Photocatalytic and Antioxidant Activities

et al. 2023

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With the increasing demand for wastewater treatment and multidrug resistance among pathogens, it was necessary to develop an efficient catalyst with enhanced photocatalytic and antibacterial applications. The present study proposes a facile and green strategy for synthesizing zinc oxide (ZnO) decorated nickel (Ni) nanomaterials. The synthesized Ni/ZnO nanocomposite displays a high crystallinity and spherical morphology, which was systematically characterized by XRD, SEM, FT-IR, UV-visible spectroscopy, EDX, HRTEM, and XPS techniques. In addition, the bacteriological tests indicated that Ni/ZnO nanocomposite exhibits potent antibacterial activity against human pathogens, i.e., Pseudomonas aeruginosa (P. aeruginosa), Staphylococcus aureus (S. aureus), and Escherichia coli (E. coli). The inhibition zone observed in light and dark conditions for E. coli was 16 (±0.3) mm and 8 (±0.4) mm, respectively, which confirms the high efficacy of the nanocomposite in the presence of light compared to dark conditions. The detailed inhibition mechanism of said bacterium and damage were also studied through fluorescence spectroscopy and SEM analysis, respectively. Evaluation of antioxidant activity based on free radical scavenging activity revealed that the Ni/ZnO nanocomposite effectively scavenges DPPH. In the photocatalytic performance, the Ni/ZnO nanocomposite exhibited a remarkable degradation ability under the optimized condition, which was attributed to their controllable size, high surface area, and exceptional morphology. Good selectivity, high photodegradation, and antibacterial activities and satisfactory hemolytic behavior of the as-prepared nanocomposite make them able to become a potential candidate for superior biological performance and environmental remediation.

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Modified Ag nanoparticles on the regular array structure to improve the optical properties

Cited by 44 publications

References 42 publications

Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue

Ag nanoparticles on ZnO nanoplates as a hybrid SERS-active substrate for trace detection of methylene blue

Ag Nanoislands Modified Carbon Fiber Nanostructure: A Versatile and Ultrasensitive Surface-Enhanced Raman Scattering Platform for Antiepileptic Drug Detection

An Eco-Benign Biomimetic Approach for the Synthesis of Ni/ZnO Nanocomposite: Photocatalytic and Antioxidant Activities

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