منابع مشابه
extraction and characterization of allium irancum plant extract and its application in the green synthesis of silver nano particles and oxidation of thiocarbony1 compounds
سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...
Colloidal Photonic Crystals Containing Silver Nanoparticles with Tunable Structural Colors
Polystyrene (PS) colloidal photonic crystals (CPhCs) containing silver nanoparticles (AgNPs) present tunable structural colors. PS CPhC color films containing a high concentration of AgNPs were prepared using self-assembly process through gravitational sedimentation method. High-concentration AgNPs were deposited on the bottom of the substrate and acted as black materials to absorb background a...
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The purpose of this research is to analyze the lowlevel features of images as a representation of semantic concept. This paper proposes a flexible approach for clustering features of images and mapping the low-level image features to the highlevel concept recognition. Owing to the uncertainty of image features for human’s recognition, we use the approach of fuzzy colors clustering to analyze im...
متن کاملFabrication of Silver doped Buckypaper and Investigation of its Properties
Microwave absorbing property of composites containing Ag nanoparticles filled multiwalled carbon nanotube buckypaper (Ag-BP) has been investigated. Buckypaper doped with silver was prepared by direct dispersion and filtration method. From the low temperature resistivity measurement it was found that increasing doping level decreases the electrical conductivity of the buckypaper. 30 wt. % and 40...
متن کاملBiogenic Synthesis of Silver Nanoparticles Using Mustard and Its Characterization
The field of nanobiotechnology mainly encompasses with physics, biology, chemistry and material sciences and it develops novel therapeutic nano-scale materials for biomedical, drug delivery, cancer therapy and pharmaceutical applications. Silver nanoparticles (AgNPs) have unique physiochemical, biological and environmental properties which make them useful in a wide range of applications, s...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry
سال: 1906
ISSN: 0092-7325,1541-5740
DOI: 10.1021/j150081a002