نتایج جستجو برای: green bio synthesis

تعداد نتایج: 596172  

2017
Khalid M Alotaibi Lewis Shiels Laure Lacaze Tanya A Peshkur Peter Anderson Libor Machala Kevin Critchley Siddharth V Patwardhan Lorraine T Gibson

Iron has been used previously in water decontamination, either unsupported or supported on clays, polymers, carbons or ceramics such as silica. However, the reported synthesis procedures are tedious, lengthy (involving various steps), and either utilise or produce toxic chemicals. Herein, the use of a simple, rapid, bio-inspired green synthesis method is reported to prepare, for the first time,...

2018
Snehali Mali Sachin Shinde Shashikant Damte Suresh Patil

Without using any toxic or hazardous reagent, ligand, acid, transition metal catalyst, additives/promoters and organic solvent, green Knoevenagel condensation and tandem Knoevenagel-Michael reactions have been successfully carried out by using chickpea leaf exudates as a naturally sourced Bronsted acid type bio-catalyst. The reaction proceeds in neat chickpea leaf exudates at room temperature i...

Journal: :Green Chemistry 2022

We present the strategic development of a synthetic onepot two-step process for manufacture acetyl-protected hydroxystyrenes from phenolic acid substrates using environmentally benign (bio)catalysts in an eco-friendly solvent.

Journal: :Sustainable Energy and Fuels 2022

This article compared the engine performance parameters of furanyl diethers and systematically summarized their mechanistic pathways preparation methods.

Journal: Nanomedicine Journal 2014
Gholam Hosein Shahidi Gholam Reza Sharifi, Sara Biglari

Objective(s):  Biosynthesis of gold nanoparticles (NGPs) is environmentally safer than chemical and physical procedures. This method requires no use of toxic solvents and synthesis of dangerous products and is environmentally safe. In this study, we report the biosynthesis of NGPs using Streptomyces djakartensis isolate B-5.   Materials and Methods: NGPs were biosynthesized by reducing aqueous ...

Journal: Journal of Nanoanalysis 2017

Green biosynthesis of silver - functionalized multiwalled carbon nanotube (Ag/FMWCNT) nanohybride from silver nitrate solution using water extract of Satureja hortensis L as reducing agent and FMWCNT as anchoring agent at room condition was succesfully carried out. Water-soluble organics present in the plant materials were mainly responsible for the reduction of silver ions to nano-sized Ag par...

2014
Sudip Mukherjee Debabrata Chowdhury Rajesh Kotcherlakota Sujata Patra Vinothkumar B Manika Pal Bhadra Bojja Sreedhar Chitta Ranjan Patra

In this report, we have designed a simple and efficient green chemistry approach for the synthesis of colloidal silver nanoparticles (b-AgNPs) that is formed by the reduction of silver nitrate (AgNO3) solution using Olax scandens leaf extract. The colloidal b-AgNPs, characterized by various physico-chemical techniques exhibit multifunctional biological activities (4-in-1 system). Firstly, bio-s...

Journal: :iranian journal of catalysis 2015
khatereh khandan-barani arezo motamedi-asl

for the first time lactic acid was applied as an efficient and green catalyst for the one-pot three-component synthesis of amidoalkyl naphthols via the condensation between arylaldehydes, 2-naphthol and amides or urea under thermal solvent-free conditions in good to excellent yields. we have demonestrated a mild and efficient eco-friendly tandem synthesis of amidoalkyl naphthols using lactic ac...

2015
Anima Nanda M. Lakshmipathy Devan Elumalai P. K. Kaleena B. K. Nayak

Microbe mediated synthesis of silver nanoparticles (AgNPs) constitutes a reliable, eco-friendly approach ameliorating green-chemistry principles. In this study, stable silver nanoparticles were synthesized by exposing aqueous silver ions to extracellular exudates of B. subtilis A1 under optimized laboratory conditions. The synthesized nanoparticles were characterized by spectroscopic and micros...

Journal: :Molecules 2015
Parisa Ghorbani Mozhgan Soltani Masoud Homayouni-Tabrizi Farideh Namvar Susan Azizi Rosfarizan Mohammad Amin Boroumand Moghaddam

The development of reliable and ecofriendly approaches for the production of nanomaterials is a significant aspect of nanotechnology nowadays. One of the most important methods, which shows enormous potential, is based on the green synthesis of nanoparticles using plant extract. In this paper, we aimed to develop a rapid, environmentally friendly process for the synthesis silver nanoparticles u...

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