scholarly journals Electrospun composite nanofibre fabrics containing green reduced Ag nanoparticles as an innovative type of antimicrobial insole

RSC Advances ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 2244-2251 ◽  
Author(s):  
L. Du ◽  
T. Li ◽  
S. Wu ◽  
H. F. Zhu ◽  
F. Y. Zou
Keyword(s):  
Ag Nanoparticles ◽  
Fabrication Method ◽  
Ag Nps ◽  
Facile Fabrication

This study aims to develop an antimicrobial insole with an electrospun nanofibre mat which contains green reduced Ag NPs by a facile fabrication method.

scholarly journals Facile Fabrication of Stretchable Electrodes by Sedimentation of Ag Nanoparticles in PDMS Matrix

2018 ◽  
Vol 2018 ◽  
pp. 1-6
Author(s):  
Jae-Yeop Kim ◽  
Kwang-Suk Jang
Keyword(s):  
Electrical Conductivity ◽  
Ag Nanoparticles ◽  
High Performance ◽  
Surface Resistance ◽  
Volume Fraction ◽  
Stretchable Electronics ◽  
Fabrication Method ◽  
Composite Surface ◽  
Local Volume ◽  
Facile Fabrication

This study reports a facile fabrication method for highly conductive stretchable electrodes composed of a conductive 0D nanomaterial filler and an elastomer matrix. The local volume fraction of the Ag nanoparticles at the composite surface could be significantly increased by the sedimentation of Ag nanoparticles in uncured polydimethylsiloxane (PDMS) fluid. The stretchable electrodes had a surface resistance of 0.910±0.509 Ω/sq and were stretchable up to 100% of strain without the reduction of the electrical conductivity, demonstrating their potential as high-performance electrodes for applications in stretchable electronics.

scholarly journals Ag Nanoparticles Sensitized In2O3 Nanograin for the Ultrasensitive HCHO Detection at Room Temperature

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Shiqiang Zhou ◽  
Mingpeng Chen ◽  
Qingjie Lu ◽  
Yumin Zhang ◽  
Jin Zhang ◽  
...  
Keyword(s):  
Indoor Air ◽  
Ag Nanoparticles ◽  
Room Temperature ◽  
Unsolved Problem ◽  
Air Pollutant ◽  
Ag Nps ◽  
Performance Targets ◽  
Fabrication Cost ◽  
Low Concentrations ◽  
Stringent Performance

AbstractFormaldehyde (HCHO) is the main source of indoor air pollutant. HCHO sensors are therefore of paramount importance for timely detection in daily life. However, existing sensors do not meet the stringent performance targets, while deactivation due to sensing detection at room temperature, for example, at extremely low concentration of formaldehyde (especially lower than 0.08 ppm), is a widely unsolved problem. Herein, we present the Ag nanoparticles (Ag NPs) sensitized dispersed In2O3 nanograin via a low-fabrication-cost hydrothermal strategy, where the Ag NPs reduces the apparent activation energy for HCHO transporting into and out of the In2O3 nanoparticles, while low concentrations detection at low working temperature is realized. The pristine In2O3 exhibits a sluggish response (Ra/Rg = 4.14 to 10 ppm) with incomplete recovery to HCHO gas. After Ag functionalization, the 5%Ag-In2O3 sensor shows a dramatically enhanced response (135) with a short response time (102 s) and recovery time (157 s) to 1 ppm HCHO gas at 30 °C, which benefits from the Ag NPs that electronically and chemically sensitize the crystal In2O3 nanograin, greatly enhancing the selectivity and sensitivity.

scholarly journals Structural and Optical Analysis of Ag Nanoparticles assisted Vertically Aligned TiO2 Nanowires based photoanode for Dye-sensitized Solar Cells Application

2021 ◽  
Author(s):  
Biraj Shougaijam ◽  
Salam Surjit Singh
Keyword(s):  
Solar Cells ◽  
Ag Nanoparticles ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Ag Nps ◽  
Dye Sensitized ◽  
Vertically Aligned ◽  
Glad Technique ◽  
Sensitized Solar Cells ◽  
Pet Substrate

Abstract In this work, vertically aligned TiO 2 -Nanowires (TiO 2 -NWs) and Ag Nanoparticles assisted TiO 2 Nanowires (TAT-NWs) were deposited on glass and flexible PET substrates using the Glancing Angle Deposition (GLAD) technique. The morphology and structural analysis of the samples manifest the successful deposition of vertically aligned TiO 2 -NWs and TAT-NWs. The HR-TEM image of TiO 2 -NWs shows the polycrystalline nature. Further, the XRD result confirms the polycrystalline nature of both the TiO 2 -NWs and TAT-NWs samples. Besides, the HR-TEM image confirms the presence of small crystal grains of Ag Nanoparticles (Ag-NPs) at the mid of the annealed TAT-NWs. It is evident from the Selective Area Electron Diffraction (SAED) analysis of the TiO 2 -NWs and annealed TAT-NWs that the crystallinity of TiO 2 present in the annealed TAT-NWs improves after annealing. The absorption spectrum analysis of TAT-NWs deposited on glass substrate shows enhance absorption peak in the visible region with a maximum peak at ~463 nm wavelength compare to the TiO 2 -NWs, which may be attributed to the Surface Plasmon Resonance (SPR) effect of Ag-NPs. Further, it is interesting to observe that the TAT-NWs deposited on PET substrate show further absorption enhancement in the UV and visible region. In addition, the Photoluminescence analysis reveals that the bandgap of the TiO 2 -NWs is ~3.12 eV, which supports the bandgap extracted from the Tauc plot. Therefore, the proposed method of fabricating TAT-NWs on glass and flexible ITO coated PET substrate using the GLAD technique may be applicable for developing novel photoanode for Dye-sensitized Solar Cells (DSSCs) and other optoelectronic applications.

Effect of Plasmid DNA Dimension Evolution on the Size of Ag Nanoparticles during Photoirradiation

2016 ◽  
Vol 847 ◽  
pp. 194-199
Author(s):  
Jin Dan Zhang ◽  
Mei Yu ◽  
Jian Hua Liu ◽  
Song Mei Li ◽  
Yan Bing Meng
Keyword(s):  
Linear Relationship ◽  
Plasmid Dna ◽  
Ag Nanoparticles ◽  
Synthesis Process ◽  
Ag Nps ◽  
Base Pairs ◽  
Ultraviolet C ◽  
Metallic Nanomaterials ◽  
Ft Ir ◽  
Induce Condition

Under the photoirradiation, DNA works as both template and reducing agent to drive the formation of metallic nanomaterials. In this study the plasmid DNA with different base pairs was applied as biotemplate to synthesize Ag nanoparticles (NPs) by using photoirradiation approach. The evolution of DNA dimension changed during the synthesis process, and their effect on the morphology of the synthesized Ag NPs was studied by UV-Vis spectra, FT-IR spectra, Raman spectra, AFM, and TEM. It is found that the plasmid DNA shrinked twice during the synthesis, the first time happened when the Ag (I) cations neutralized the negative charge along the DNA chain, and the second time happened when plasmid DNA reduced Ag (I) induced by the ultraviolet C (254 nm) irradiation. The size of the synthesized Ag NPs showed approximately linear relationship with the dimension of plasmid DNA scaffolds under this photo-induce condition. The compaction degree of the plasmid DNA during the Ag formation was shown by the slope of the linear relationship.

Surface oxygen vacancies of ZnO: A facile fabrication method and their contribution to the photoluminescence

2019 ◽  
Vol 791 ◽  
pp. 722-729 ◽  
Author(s):  
N. Tu ◽  
H. Van Bui ◽  
D.Q. Trung ◽  
Anh-Tuan Duong ◽  
D.M. Thuy ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Surface Oxygen ◽  
Fabrication Method ◽  
Facile Fabrication

Facile fabrication of triphenylamine-based conjugated porous polymers and their application in organic degradation under visible light

2020 ◽  
Vol 44 (7) ◽  
pp. 2986-2995 ◽  
Author(s):  
Lidan Lan ◽  
Fei Liu ◽  
Yi Dan ◽  
Long Jiang
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Porous Polymers ◽  
Fabrication Method ◽  
Ambient Conditions ◽  
One Pot ◽  
Organic Degradation ◽  
One Pot Synthesis ◽  
Facile Fabrication ◽  
The One

A facile fabrication method was developed for the one-pot synthesis of 1,3,5-triformylbenzene (TFB)-4,4′4′′-triaminotriphenylamine (TPA) and 1,3,5-triformylbenzene-terephthalaldehyde (TA) under ambient conditions via a Schiff-base reaction.

Molecular sieving property adjusted by the encapsulation of Ag nanoparticles into ZnO@ZIF-71 nanorod arrays

2019 ◽  
Vol 55 (74) ◽  
pp. 11045-11048 ◽  
Author(s):  
Tingting Zhou ◽  
Ziyu Qin ◽  
Xiaoxia Wang ◽  
Congyi Wu ◽  
Xing Tang ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Nanorod Arrays ◽  
Ag Nps ◽  
Molecular Sieving

Ag NPs are encapsulated into ZIF-71 serving as an adjustable molecular sieving layer to hydrogen and acetone.

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