نتایج جستجو برای: biogenic silver nanoparticles

تعداد نتایج: 148295  

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.

Journal: :Biosciences, Biotechnology Research Asia 2022

Azadirachta indica (Neem ) is an important medicinal plant with proven strong antiseptic, antiviral, antifungal and antibacterial properties. The study here presents the QS (Quorum Sensing) inhibitory potential of biogenic Silver nanopaticles (AgNPs) from leaf extracts. nanoparticles were synthesized using aqueous extract leaves silver nitrate solution. size, crystal structure, elemental compos...

2012
Henrik Schneidewind Thomas Schüler Katharina K Strelau Karina Weber Dana Cialla Marco Diegel Roland Mattheis Andreas Berger Robert Möller Jürgen Popp

Silver nanoparticles were synthesized by an enzyme-induced growth process on solid substrates. In order to customize the enzymatically grown nanoparticles (EGNP) for analytical applications in biomolecular research, a detailed study was carried out concerning the time evolution of the formation of the silver nanoparticles, their morphology, and their chemical composition. Therefore, silver-nano...

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...

Journal: :nanomedicine journal 0
farzane hoseyni dowlatababdi falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) gholamreza amiri falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) maryam mohammadi sichani falavarjan branch, islamic azad university, esfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

the antimicrobial effect of metal nanoparticles such as zinc oxide and silver nanoparticles has been taken into great consideration separately during recent years. the useful application of these nanoparticles in the areas of medicine, biotechnology, and professional prevention of microbes motivated us. the aim of this study was to evaluate antibacterial activity properties of silver doped zinc...

Journal: :jundishapur journal of microbiology 0
mohsen adeli department of chemistry, faculty of science, lorestan university, khoramabad, ir iran hasan hosainzadegan maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran; maragheh faculty of nursing & midwifery, tabriz university of medical sciences, tabriz, ir iran. tel: +98-9147667729, fax: +98-4212276363 iraj pakzad department of microbiology and clinical microbiology research center, faculty of medicine, ilam university of medical sciences, ilam, ir iran fatemeh zabihi department of chemistry, faculty of science, lorestan university, khoramabad, ir iran maedee alizadeh maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran fattane karimi maragheh faculty of nursing and midwifery, tabriz university of medical sciences, tabriz, ir iran

background silver has been used from ancient times by humans, and recently nanoparticles of silver have been used in many aspects of human life including as a potent antibacterial agent. objectives in the current study a completely green method to prepare silver nanoparticles is reported. two types of starches (potato and corn starches) were used to produce and stabilize silver nanoparticles. a...

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