![](/images/graphics-bg.png)
Extracellular Biosynthesis of Silver Nanoparticles Using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 and Their Antimicrobial Activities
المؤلفون المشاركون
El-Shanshoury, Abd El-Raheem R.
ElSilk, Sobhy E.
Ebeid, Mohamed E.
المصدر
العدد
المجلد 2011، العدد 2011 (31 ديسمبر/كانون الأول 2011)، ص ص. 1-7، 7ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2011-08-17
دولة النشر
مصر
عدد الصفحات
7
التخصصات الرئيسية
الملخص EN
The development of reliable and eco-friendly organisms of silver nanomaterials is an important aspect of current nanotechnology research and application.
Recently, microorganisms have been explored as potential biofactory for synthesis of silver nanoparticles.
In this study, through screening of common bacteria, we report extracellular biosynthesis of metallic silver nanoparticles by the reduction of aqueous Ag+ using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 as potential candidates for the rapid synthesis of silver nanoparticles.
The culture supernatant of silver nanoparticles biosynthesis by reduction of silver ion coming in contact with the cell filtrate was fast and was formed within few minutes.
UV-visible spectrum of the aqueous media obtained from the above bacteria containing silver ion showed a peak around 420 nm corresponding to the plasmon absorbance of silver nanoparticles.
Transmission electron microscopy (TEM) micrographs showed formation of well-dispersed silver nanoparticles in the range of 5–25 nm.
X-ray diffraction (XRD) of silver nanoparticles exhibited 2θ values corresponding to the silver nanocrystal.
In vitro studies indicated that the formed silver nanoparticles showed variable antimicrobial activity against Escherichia coli, Bacillus subtilis, Salmonella typhimurium, Klebsiella pneumoniae, Staphylococcus aureus, and Pseudomonas aeruginosa and the fungus like yeast (Candida albicans).
The diameter of inhibition zone varied according to the silver nanocrystal concentration and the test microorganism.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
El-Shanshoury, Abd El-Raheem R.& ElSilk, Sobhy E.& Ebeid, Mohamed E.. 2011. Extracellular Biosynthesis of Silver Nanoparticles Using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 and Their Antimicrobial Activities. ISRN Nanotechnology،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-467940
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
El-Shanshoury, Abd El-Raheem R.…[et al.]. Extracellular Biosynthesis of Silver Nanoparticles Using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 and Their Antimicrobial Activities. ISRN Nanotechnology No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-467940
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
El-Shanshoury, Abd El-Raheem R.& ElSilk, Sobhy E.& Ebeid, Mohamed E.. Extracellular Biosynthesis of Silver Nanoparticles Using Escherichia coli ATCC 8739, Bacillus subtilis ATCC 6633, and Streptococcus thermophilus ESh1 and Their Antimicrobial Activities. ISRN Nanotechnology. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-467940
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-467940
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)