با همکاری مشترک انجمن علوم و فناوری‌های شیمیایی ایران

نوع مقاله : مقاله پژوهشی کامل

نویسندگان

1 گروه شیمی، دانشگاه پیام نور، تهران، ایران

2 گروه فنی و مهندسی، دانشگاه پیام نور، تهران، ایران

چکیده

در مطالعه حاضر، سنتز نانوذرات نقره و فعالیت ضد باکتریایی آن مورد بررسی قرار گرفت. نانو ذرات نقره با استفاده از عصاره برگ چغندر به سرعت سنتز، و نانوذرات نقره در عرض 1 ساعت تشکیل شد. نتایج ثبت شده از طیف سنجی UV-Vis ، میکروسکوپ الکترون عبوری  (TEM) وپراش پرتو ایکس (XRD) خصوصیات نانو ذرات نقره را تعیین می کنند.  طیف سنجی UV-Vis پیک جذب نانو ذرات نقره را در محدوده 435  - 440 نانومتر نشان می دهد.از تجزیه و تحلیل میکروسکوپ الکترون  عبوری با وضوح بالا (HRTEM)  اندازه نانوذرات نقره را 35 تا 40 نانومتر اندازه‌گیری شد. علاوه بر این، فعالیت ضد باکتریایی نانو ذرات نقره  با افزایش غلظت نانو افزایش می یابد و اثر موثری داشت. غلظت 008/0 مولی نانوذرات نقره، فعالیت ضدباکتریایی بیشتری نسبت به سایر غلظت‌ها داشت. نتایج این پروتکل را به عنوان روش‌های فیزیکی/شیمیایی معمولی، ساده، سریع، یک مرحله‌ای و سازگار با محیط زیست و غیرسمی تأیید نمود. سنتز نانوذرات به روش سنتز سبز، یک تحقیق جدید برای جستجوی روشی سازگار با محیط زیست و مواد سبز و برای کاربردهای بالقوه در زمینه های پزشکی و دارورسانی می باشد.

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