Large-scale and facile synthesis of silver nanoparticles via a microwave method for a conductive pen

Cai, Yaguo; Piao, Xianqing; Gao, Wei; Zhang, Zhejuan; Nie, Er; Sun, Zhuo

doi:10.1039/c7ra05125e

Cited by 86 publications

(36 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A clear SAED pattern was observed, confirming polycrystalline silver with [111], [200], [220], and [311] rings as indexed (Fig. 1 g) [ 39 ]. In addition, HRTEM displayed the typical inter planar spacing of 2.04 Å for silver composites along the [200] direction (inset of Fig.…”

Section: Resultsmentioning

confidence: 80%

See 1 more Smart Citation

A Plasmonic Mass Spectrometry Approach for Detection of Small Nutrients and Toxins

Qian

Huang

et al. 2018

Nano-Micro Lett.

View full text Add to dashboard Cite

Nutriology relies on advanced analytical tools to study the molecular compositions of food and provide key information on sample quality/safety. Small nutrients detection is challenging due to the high diversity and broad dynamic range of molecules in food samples, and a further issue is to track low abundance toxins. Herein, we developed a novel plasmonic matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) approach to detect small nutrients and toxins in complex biological emulsion samples. Silver nanoshells (SiO2@Ag) with optimized structures were used as matrices and achieved direct analysis of ~ 6 nL of human breast milk without any enrichment or separation. We performed identification and quantitation of small nutrients and toxins with limit-of-detection down to 0.4 pmol (for melamine) and reaction time shortened to minutes, which is superior to the conventional biochemical method currently in use. The developed approach contributes to the near-future application of MALDI MS in a broad field and personalized design of plasmonic materials for real-case bio-analysis.Electronic supplementary materialThe online version of this article (10.1007/s40820-018-0204-6) contains supplementary material, which is available to authorized users.

show abstract

Section: Resultsmentioning

confidence: 80%

“…In addition, HRTEM displayed the typical inter planar spacing of 2.04 Å for silver composites along the [200] direction (inset of Fig. 1 g) [ 39 – 41 ]. In order to check the composition of the materials, we recorded the corresponding EDX spectra to demonstrate the presence of silver (Fig.…”

Section: Resultsmentioning

confidence: 99%

A Plasmonic Mass Spectrometry Approach for Detection of Small Nutrients and Toxins

Qian

Huang

et al. 2018

Nano-Micro Lett.

View full text Add to dashboard Cite

show abstract

“…This refers to the presence of essential amino acids with aromatic side chains [65,66]. The band at 236 cm −1 refers to Ag-OCO- [67]. These peaks clearly present the molecules on the mycogenic AgNPs surface.…”

Section: Resultsmentioning

confidence: 99%

Mycogenic Silver Nanoparticles from Endophytic Trichoderma atroviride with Antimicrobial Activity

Abdel-Azeem

Nada

O’Donovan

et al. 2020

Journal of Renewable Materials

View full text Add to dashboard Cite

There is an increasing interest in developing nanoparticles with diverse biologic activities. To this end, we prepared 10 to 15 nm silver nanoparticles (AgNP) from native isolates of Trichoderma atroviride. Within this study, endophytic fungi hosted four medicinal plants in Saint Katherine Protectorate, South Sinai, Egypt have been isolated by surface sterilization technique on four isolation media. Ten species, based on their frequency of occurrence, out of twenty recovered taxa were tested for their capability to synthesize extracellular AgNPs. Trichoderma atroviride hosted Chiliadenus montanus was found to be the best candidate for the production of mycogenic AgNPs among all examined species. The mycosynthesized AgNPs were compared with chemically synthesized and characterized using Ultraviolet-visible (UV-vis) spectroscopy, Raman spectroscopy, X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) techniques. The HRTEM result showed the distribution of spherical AgNPs ranging from 10 to 15 nm. Trichoderma atroviride isolate was subjected to sequencing for confirmation of phenotypic identification. The internal transcribed spacer (ITS) 1-5.8 s-ITS2 rDNA sequences obtained were compared with those deposited in the GenBank Database and registered with accession number MH283876 in the NCBI Database. Antibacterial, anticandidal and antifungal effects of chemically and mycosynthesized AgNPs were examined at various concentrations in vitro against six pathogenic bacteria and 4 pathogenic fungi by agar well diffusion technique. Standard antibiotics; Gentamicin, Amoxicillin, Clotrimazole, and Nystatin at 5 μg/disk were taken as positive controls, while 5% DMSO was used as the negative control. Our data revealed that the application of mycogenic AgNPs at a concentration of 100 ppm resulted in maximum inhibition of pathogenic bacteria and fungi. These data suggest that AgNPs from native isolates of Trichoderma atroviride (MH283876) offer a source of rapid synthesis of eco-friendly, economical biomaterials that show antimicrobial activities.

show abstract

“…Therefore, silver NPs are actually being widely used as antibacterial agents (Reidy et al, 2013 ). Additionally, they can also be used for sensing applications (Annadhasan et al, 2014 ), as conductive elements in electronics (Cai et al, 2017b ) and in environmental remediation applications as they possessed also catalytical properties allowing the degradation of several pollutants in water (Guerra et al, 2018 ).…”

Section: Nano-objectsmentioning

confidence: 99%

Silk Polymers and Nanoparticles: A Powerful Combination for the Design of Versatile Biomaterials

et al. 2020

View full text Add to dashboard Cite

Silk fibroin (SF) is a natural protein largely used in the textile industry but also in biomedicine, catalysis, and other materials applications. SF is biocompatible, biodegradable, and possesses high tensile strength. Moreover, it is a versatile compound that can be formed into different materials at the macro, micro- and nano-scales, such as nanofibers, nanoparticles, hydrogels, microspheres, and other formats. Silk can be further integrated into emerging and promising additive manufacturing techniques like bioprinting, stereolithography or digital light processing 3D printing. As such, the development of methodologies for the functionalization of silk materials provide added value. Inorganic nanoparticles (INPs) have interesting and unexpected properties differing from bulk materials. These properties include better catalysis efficiency (better surface/volume ratio and consequently decreased quantify of catalyst), antibacterial activity, fluorescence properties, and UV-radiation protection or superparamagnetic behavior depending on the metal used. Given the promising results and performance of INPs, their use in many different procedures has been growing. Therefore, combining the useful properties of silk fibroin materials with those from INPs is increasingly relevant in many applications. Two main methodologies have been used in the literature to form silk-based bionanocomposites: in situ synthesis of INPs in silk materials, or the addition of preformed INPs to silk materials. This work presents an overview of current silk nanocomposites developed by these two main methodologies. An evaluation of overall INP characteristics and their distribution within the material is presented for each approach. Finally, an outlook is provided about the potential applications of these resultant nanocomposite materials.

show abstract

Large-scale and facile synthesis of silver nanoparticles via a microwave method for a conductive pen

Abstract: A large-scale silver nanoparticle production by microwave treatment for the electronic ink. By drawing on the photo paper, the conductive tracks were realized without any heat treatment.

Cited by 86 publications

References 41 publications

A Plasmonic Mass Spectrometry Approach for Detection of Small Nutrients and Toxins

A Plasmonic Mass Spectrometry Approach for Detection of Small Nutrients and Toxins

Mycogenic Silver Nanoparticles from Endophytic Trichoderma atroviride with Antimicrobial Activity

Silk Polymers and Nanoparticles: A Powerful Combination for the Design of Versatile Biomaterials

Contact Info

Product

Resources

About