نتایج جستجو برای: bio synthesis

تعداد نتایج: 466879  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

in this thesis, we exploit a simple and suitable method for immobilization of copper(ii) complex of 4?-phenyl-terpyridine on activated multi-walled carbon nanotubes [amwcnts-o-cu(ii)-phtpy]. this nanostructure was characterized by various physico-chemical techniques. to ensure the efficiency and fidelity of copper species, the implementation of three-component strategies in click-chemistry all...

ژورنال: Anatomical Sciences Journal 2011
Parvaneh Tafreshi, Azita, Safarpour, Atefeh, Zeynali, Bahman, Soleimani, Masoud,

Purpose: Bone defects caused by injuries, trauma, cancer, surgical operation or joint dislocation have great impacts on general health. Considering that Wnt signalling is one of the important regulators of the stem cell control, we sought to examine if Wnt activation affects the osteogenic differentiation of the USSCs.Materials and Methods: In this study, we have treated USSCs cultured in osteo...

Journal: :Nanoscale 2015
Jie Yang Nan Xia Xinan Wang Xianhu Liu An Xu Zhikun Wu Zhixun Luo

Correction for 'One-pot one-cluster synthesis of fluorescent and bio-compatible Ag14 nanoclusters for cancer cell imaging' by Jie Yang, et al., Nanoscale, 2015, 7, 18464-18470.

2012
Kok Siew Ng Jhuma Sadhukhan

Process to process material and heat integration strategies for bio-oil integrated gasification and methanol synthesis (BOIG-MeOH) systems were developed to assess their technological and economic feasibility. Distributed bio-oil generations and centralised processing enhance resource flexibility and technological feasibility. Economic performance depends on the integration of centralised BOIG-...

2014
Mohamed Abdul-Aziz Adel Kamel Madbouly

A promising avenue of research in materials science is to follow the strategies used by Mother Nature to fabricate ornate hierarchical structures as exemplified by organisms such as diatoms, sponges and magnetotactic bacteria. Some of the strategies used in the biological world to create functional inorganic materials may well have practical implications in the world of nanomaterials. The aim o...

In the present work, we demonstrate a facile way to study the biosynthesis of silver nanoparticles (Ag-NPs) with strong bactericidal properties using an aqueous extract of Scrophularia striata Boiss. The bio-reduction of Ag+ ions resulted in FCC cubic structures of Ag-NPs with spherical shapes of about 16 nm. As a main aim of the present work, the antibacterial activity of the bio-synthesized A...

Journal: :Material Cycles and Waste Management Research 2017

Journal: :Biochemical Society transactions 2007
M M Tomczak J M Slocik M O Stone R R Naik

Nature is an exquisite designer of inorganic materials using biomolecules as templates. Diatoms create intricate silica wall structures with fine features using the protein family of silaffins as templates. Marine sponges create silica spicules also using proteins, termed silicateins. In recent years, our group and others have used biomolecules as templates for the deposition of inorganic mater...

Journal: :Molecules 2017
Vincenzo Pantone Cosimo Annese Caterina Fusco Paola Fini Angelo Nacci Antonella Russo Lucia D'Accolti

An innovative and eco-friendly one-pot synthesis of bio-based polyurethanes is proposed via the epoxy-ring opening of epoxidized soybean oil (ESO) with methanol, followed by the reaction of methoxy bio-polyols intermediates with 2,6-tolyl-diisocyanate (TDI). Both synthetic steps, methanolysis and polyurethane linkage formation, are promoted by a unique catalyst, molybdenum(VI) dichloride dioxid...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

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