نتایج جستجو برای: silver packaging
تعداد نتایج: 65346 فیلتر نتایج به سال:
Crocus sativus L. (saffron) is a valuable plant which is native to Iran. Saffron is the dried stigmata of the flowering part of the plant that is usually contaminated with different bacteria and fungi through production process. Antimicrobial properties of silver nanoparticles are well recognized. To survey the effects of nanosilver packaging on microbiological status of spiked, saffron samples...
In high power electronics packaging, sintered silver nanoparticle joints suffer from thermal-humidity- electrical-chemical joint driven corrosion in extreme environments. this paper, we conducted aging tests on nanoparticles under high-temperature, high-humidity, and high-sulphur conditions. The results show that: (1) the sample dry conditions at a temperature exhibited highest degree of sulphi...
Abstract In the field of microelectronic packaging technology, isotropic conductive adhesives (ICAs) have been used widely as interconnection materials between chips and substrates. ICAs are composed silver powder particles adhesive matrix. The paper analysed rheological properties at different temperatures in order to better apply dispensing jet printing processes. viscosity, viscoelasticity, ...
The increasing demand in automotive markets is leading the semiconductor industries to develop high-performance and highly reliable power devices. Silicon carbide MOSFET chips are replacing silicon-based solutions through their improved electric thermal capabilities. In order support development of these novel semiconductors, packaging technologies evolving provide enough products. Silver sinte...
b adsorbed on surfaces that can enhance the absorption and emission of electromagnetic radiation. Surface-enhanced Raman scattering (SERS) is a wellinvestigated phenomenon and an established surface analytical tool (1). The surface enhancement of infrared spectra was first observed and investigated by Hartstein et al. in 1980 (2a), but it is still developing and has not yet matured into a relia...
Polymer/metal nanocomposite containing intrinsically anisotropic metal nanostructures such as metal nanorods and nanowires appeared extremely more sensitive and responsive to mechanical stimuli than nanocomposites containing spherical nanoparticles. After uniaxial stretching of the supporting polymer matrix (poly(vinyl alcohol)), the elongated silver nanostructures embedded at low concentration...
Nanomaterials are increasingly used in food production and packaging, and validated methods for detection of nanoparticles (NPs) in foodstuffs need to be developed both for regulatory purposes and product development. Asymmetric flow field-flow fractionation with inductively coupled plasma mass spectrometric detection (AF(4)-ICP-MS) was applied for quantitative analysis of silver nanoparticles ...
In this research work, the production of undoped and silver (Ag) doped zinc oxide (ZnO) thin films for food packaging applications was developed. The main goal was to determine the influence of coatings morphology and thickness on the antimicrobial performance of the produced samples. The ZnO based thin films were deposited on PET (Polyethylene terephthalate) by means of DC reactive magnetron s...
Montmorillonite modified with a quaternary ammonium salt C30B/starch nanocomposite (C30B/ST-NC), silver nanoparticles/starch nanocomposite (Ag-NPs/ST-NC) and both silver nanoparticles/C30B/starch nanocomposites (Ag-NPs/C30B/ST-NC) films were produced. The nanoclay (C30B) was dispersed in a starch solution using an ultrasonic probe. Different concentrations of Ag-NPs (0.3, 0.5, 0.8 and 1.0mM) we...
the packaging industry by promoting the production capability has an important role in the development of different economic sectors. empowerment of packaging industry increases the competitiveness of other economic sectors. on the other hand, packaging industry has an important role in increasing the national income and employment. these factors cause the governments to pay special attention t...
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