Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

Abstract

Green synthesis of silver nanoparticles usinglactose sugar andevaluation of their antimicrobial activity

Author(s): Tayyebeh Madrakian 1 , Sakineh Alizadeh 1* , Roya Karamian 2 , Mostafa Asadbegy 2 , Morteza Bahram 3 and Mohammad Javad Soleimani 4

In nanotechnology science several methods of chemic al synthesis of silver nanoparticles (AgNps) are kn own. These methods involve high pressure, temperature and ener gy.Development in the green synthesis of Ag Nps is an important step in the field of application in nanot echnology. Accordingly, researchersare developing g reen methods that are eco-friendly, cost-effective and energy-ef ficient. Herein we report a green approach for the synthesis of AgNps. Thec olloidal silver particles were synthesized by reduction of AgNO 3 with D (+) lactose as a reducing agent .The morphology and structure of synthesized Ag Nps were characterized usingRayleigh scattering, transmission electron microscopy (TEM), UV/Vis spec trophotometry, dynamic light scattering (DLS) and X -ray diffraction method (XRD). Also the Ag Nps in differ ent concentration and shapes wereanalyzed for their antimicrobial activity agansit 4 positive and negat ive bacteriausing agar disc diffusion methodand fun gusFusarium oxysporum cultivated on Potatoes Dextrose Agar medi um (PDA). Results indicated that synthesized Ag Nps are relatively same in size (15 to 40 nm) and almost sp herical.Also resultsshowed that the AgNps had inhib ition activity against testedmicrobials, especially on Staphylococ cus aureus (+), (C 27 :16 ± 0.55 mm)and Fusarium oxysporum (0 to 100%). The effects of concentration and size of the synthesized Ag NPs on antimicrobial activity we re also discussed.


PDF

FIND ARTICLES
SCImago Journal & Country Rank
 
Erkek öyle sert ve acımaz sikiyor ki bayan çaresiz bir şekilde tırtıl misali sikiş yataktan aşağı doğru kayıyor fakat hem adam hemde kadın aşırı mobil porno derecede zevk alıyorlar Uzun zamandır karısı ile ilgili planları olan türk porno adam onu başkaları sikerken hayal ediyor bu durumu karısından sikiş izle gizliyordu fakat bir gün adamın moralinin bozuk olduğunu anlayan karısı sikiş ona ne olduğunu sordu ve adamda ona her şeyi anlatmıştı karısı bu porno resim durumdan Büyük zenci yarağı sevenler için özel olarak eklenmiş videomuz türk porno kalın ve damarlı zenci siki arayıp bulamayanlar için özel olarak sikiş izle yayınlanmıştır filmde ise sarışın zengin sürtük büyük mobil sikiş kalın damarlı alet sevdiğini bir çok kez dile getirmiş