نتایج جستجو برای: silver nanoparticles sonification kerman sarcheshmeh cooper complex anode slime

تعداد نتایج: 942493  

2015
Nelson Durán Camila P. Silveira Marcela Durán Diego Stéfani T. Martinez

Silver nanoparticles are one of the most important materials in the nanotechnology industry. Additionally, the protein corona is emerging as a key entity at the nanobiointerface; thus, a comprehensive understanding of the interactions between proteins and silver nanoparticles is imperative. Therefore, literature reporting studies involving both single molecule protein coronas (i.e., bovine and ...

2014
Feng Shao

This study investigated the antiviral effect of silver nanoparticles on MS2 bacteriophage. Silver nanoparticles were synthesized via chemical reduction method and characterized by transmission electron microscope. Synthesized silver nanoparticles and cultivated MS2 bacteriophage were characterized using zetasizer. The result in this study indicates that the toxicity of silver nanoparticles on M...

Journal: :avicenna journal of medical biochemistry 0
samira nasiri department of mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of mycology, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel: +98-9356683288 sara nasiri department of biology, faculty of sciences, neyshabur branch, islamic azad university, neyshabur, ir iran

results the results revealed the formation of spherical silver nanoparticles with an average size of 10 nm. moreover, concentration of snps in a 25 ml sample containing both snps and plant extract biomass was 2.934 mg/l on average. serial microdilution test showed that snps at the concentration of 50 μg/ml can inhibit growth of the pathogen. conclusions the present study extends the existing li...

2013
Cynthia Mason Singaravelu Vivekanandhan Manjusri Misra Amar Kumar Mohanty

A novel switchgrass (Panicum virgatum) extract mediated green process was demonstrated for the synthesis of silver nanoparticles from silver nitrate solution at ambient temperature. UV-visible spectroscopic analysis indicates the rapid reduction of silver (Ag) ions by swithgrass extract. The silver nanoparticles began to form at 15 min and the reduction reaction was completed within 2 hours. Sy...

2010
Janice L Speshock Richard C Murdock Laura K Braydich-Stolle Amanda M Schrand Saber M Hussain

BACKGROUND Silver nanoparticles possess many unique properties that make them attractive for use in biological applications. Recently they received attention when it was shown that 10 nm silver nanoparticles were bactericidal, which is promising in light of the growing number of antibiotic resistant bacteria. An area that has been largely unexplored is the interaction of nanomaterials with viru...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم پایه 1390

محلول سیستئین به محلول حاوی نانوذرات نقره پایدارشده با پلی وینیل پیرولیدون و کاتیون باریم اضافه گردید. با اضافه کردن سیستئین انباشتگی نانوذرات نقره رخ داده و رنگ محلول کلوئیدی از زرد به صورتی تغییر پیدا می کند, و قله پیک پلاسمونیک نانوذرات نقره کلوئیدی در طول موج 397 نانومتر به سمت طول موج های بلندتر شیفت کرده و شاهد ظاهر شدن پیک جدیدی در طول موج 520 نانومتر خواهیم بود. در واقع کاتیون باریم نقش...

Journal: :international journal of nano dimension 0
kirandeep kaur department of biotechnology, guru nanak girls college, ludhiana, india ratika komal department of biotechnology, guru nanak girls college, ludhiana, india

in the present study, we have reported the biological synthesis of silver nanoparticles (agnps) using aqueous leaf extract prepared by hot percolation treatment of wheat varities (pbw343, triticum durum and aegilops tauschii )for the reduction of silver ions to silver nanoparticles. bioreduction of ag+ to ag0 was observed when aqueous extract augmented with silver nitrate (agno3) was incubated ...

Journal: :Nanoscale 2014
Mariana Vignoni Hasitha de Alwis Weerasekera Madeline J Simpson Jaywant Phopase Thien-Fah Mah May Griffith Emilio I Alarcon Juan C Scaiano

Capping silver nanoparticles with LL37 peptide eradicates the antiproliferative effect of silver on primary skin cells, but retains the bactericidal properties of silver nanoparticles with activities comparable to silver nitrate or silver sulfadiazine. In addition, LL37 capped silver nanoparticles have anti-biofilm formation activity.

2017
Mohamed Ibrahim Shaalan Magdy Mohamed El-Mahdy Sarah Theiner Mansour El-Matbouli Mona Saleh

BACKGROUND Antibiotic resistance is a global issue that threatens public health. The excessive use of antibiotics contributes to this problem as the genes of antibiotic resistance can be transferred between the bacteria in humans, animals and aquatic organisms. Metallic nanoparticles could serve as future substitutes for some conventional antibiotics because of their antimicrobial activity. The...

2017
Gopalu Karunakaran Matheswaran Jagathambal Nguyen Van Minh Evgeny Kolesnikov Denis Kuznetsov

extracellular extract for the synthesis of silver nanoparticles using AgNO3. The formation of nanoparticles was confirmed by different methods, such as UV-Vis absorption spectroscopy, XRD, FTIR, EDX, and TEM analysis. The formation of silver nanoparticles (AgNPs) was confirmed by the change in color from light yellow to dark brown. The absorbance peak obtained at 430 nm confirmed the presence o...

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