نتایج جستجو برای: gold and silver nanoparticle

تعداد نتایج: 16860901  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1393

چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...

2014
Mahmoud M Ahmad Essam A Abdel-Wahab A A El-Maaref Mohammed Rawway Essam R Shaaban

The irradiation effect of argon, oxygen glow discharge plasma, and mercury lamp on silver and agar/silver nanoparticle samples is studied. The irradiation time dependence of the synthesized silver and agar/silver nanoparticle absorption spectra and their antibacterial effect are studied and compared. In the agar/silver nanoparticle sample, as the irradiation time of argon glow discharge plasma ...

Journal: :iranian chemical communication 2016
vahid moeini seyed hojatollah rahimi zohre rakhsha

in this work, we report results of calculations based on the density functional theory of different species metal-ozone, containing mercury, silver and gold. the chosen species range from small molecules and large transition-metal containing ozone with mercury, silver and gold complexes. a comparative analysis of the description of the metal-oxygen bond obtained by different methodologies is pr...

Journal: :international journal of nano dimension 0
g.r. kiani department of applied chemistry, faculty of science, university of maragheh, iran. l. saghatforoush chemistry department, payamenoor university, 19395-4697, i. r. of iran. g.r. mahdavinia department of applied chemistry, faculty of science, university of maragheh, iran. k. e. geckeler department of nanobio materials and electronics, gwangju institute of science and technology (gist), 1.oryong-dong, buk-gu, gwangju 500-712, south korea.

gold nanoparticles were synthesized by chemical reduction of haucl4 inside the pores of a polycarbonate-based membrane followed by dissolving the membrane in dichloromethane and further sonication. sonication time as the main affecting factor on the nanoparticle size was investigated. the characterization by transmission electron microscopy showed the formation of gold nanoparticles with diamet...

Journal: :Applied sciences 2021

This work presents a comprehensive review on gas sensors based localized surface plasmon resonance (LSPR) phenomenon, including the theory of LSPR, synthesis nanoparticle-embedded oxide thin films, and strategies to enhance sensitivity these optical sensors, supported by simulations electromagnetic properties. The LSPR phenomenon is known be responsible for unique colour effects observed in anc...

Journal: :international journal of aquatic biology 0
biplab sarkar school of biotechnology, kiit school of biotechnology, kiit university, bhubaneswar 751024, india. manoj kumar school of biotechnology, kiit school of biotechnology, kiit university, bhubaneswar 751024, india. raja mansingh rathore school of biotechnology, kiit school of biotechnology, kiit university, bhubaneswar 751024, india. nutrimar as, norway suresh verma school of biotechnology, kiit school of biotechnology, kiit university, bhubaneswar 751024, india.

the present study was conducted to evaluate the effect of dietary inclusion of silver nanoparticle on general performance and digestive proteases in zebra fish. four experimental diets were designed with a concentration of 5, 20 and 40 parts per billion (ppb) nanoparticles in the diet (named s5, s20, and s40, respectively) and control group without any nanoparticles (s0). there was no significa...

2016
K. V. RAdHA

In this work, the antimicrobial property of nanocomposite prepared by loading of silver nanoparticle onto activated carbon (AgNP-AC) was studied. The silver nanoparticles were synthesized biologically from the culture Enterobacter aerogenes and loaded onto the activated carbon. The nanoparticle and nanocomposite were characterized by UV-vis, scanning electron microscopy and X-ray diffraction st...

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