نتایج جستجو برای: fe3o4 np
تعداد نتایج: 45352 فیلتر نتایج به سال:
In the last decade, nanobiotechnology has evolved rapidly with an extensive impact on biomedical area. In order to improve bioavailability and minimize adverse effects, drug delivery systems based on magnetic nanocomposites are under development mainly for cancer imaging and antitumor therapy. In this regard, pH sensitive core-shell magnetic nanoparticles (NPs) with accurate controlled size and...
In this work, WO3 nanoparticle decorated magnetic poliamidoamin (PAMAM) dendrimer nanocomposites were fabricated and used as a catalyser for the reduction of 4-nitrophenol (4-NP). Fe3O4 superparamagnetic iron oxide nanoparticles core. Magnetic produced using hydrothermal synthesis. core was covered with PAMAM dendrimers. The dendrimers in covering process 2nd generation which proposed to protec...
A novel and efficient catalyst is one of the goals in the material field, and the involvement of nanoscience and technology has brought new vigor to the development of catalyst. This research aimed to develop a simple two-step route to fabricate Fe3O4@PS/PDA-Ag hybridnanotubes with size-controllable and highly dispersed silver nanoparticles (NPs). First, Fe3O4@PS nanotubes of a sound mechanical...
The magnetic behaviour of 5 to 11 nm magnetite (Fe3O4) nanoparticles (NPs) was measured at various temperatures (Ts) from 20 to 400 K. The particles were fabricated via thermal decomposition of an iron precursor, and involved a coating of the particles with oleic acid. The particle size distribution was analysed by XRD measurements and TEM imaging. Magnetization loops, measured at various Ts, i...
It has been reported that bacteria-mediated degradation of contaminants is a practical and innocuous wastewater treatment. In addition, iron oxide nanoparticles (NP) are wastewater remediation agents with great potentials due to their strong adsorption capacity, chemical inertness and superparamagnetism. Therefore, a combination of NPs and microbes could produce a very desirable alternative to ...
Son zamanlarda nanopartiküllerin (NP)’lerin anaerobik sindirim (AS)’de biyogaz üretimi üzerinde verim artırmaya yönelik etkilerinin olduğu keşfedilmiştir. Bu çalışmada Fe3O4, ZnO ve SiO2 NP’lerin AS’ye olan etkileri incelenmiştir. Bazı yüksek konsantrasyonları toksik etki yapmaktadır. nedenle substrat olarak kullanılan sığır gübresinin AS’de en iyi NP konsantrasyonlarını bulmak için Cevap yüzey...
Despite intensive studies on examining the toxicity of nanomaterials (NMs), our current understanding on potential toxicity in relation to size and cellular responses has remained limited. In this work, we have developed a whole-cell based capacitive biosensor (WCB) to determine the biological toxicity of nanoparticles (NPs) using iron oxide (Fe3O4) NPs as models. This WCB chip comprised of an ...
Hybrid nanoparticle (NP) structures containing organic building units such as polymers, peptides, DNA and proteins have great potential in biosensor and electronic applications. The nearly free modification of the polymer chain, the variation of the protein and DNA sequence and the implementation of functional moieties provide a great platform to create inorganic structures of different morphol...
This work presents a rapid and facile way to access the cell wall of wood with magnetic nanoparticles (NPs), providing insights into method modification prepare hybrid bio-based functional materials. Diffusion-driven infiltration Scots pine (Pinus sylvestris L.) sapwood was achieved using colloidal Fe3O4 nanoparticles. Optical microscopy, scanning electron microscopy/energy-dispersive X-ray spe...
Novel effluent treatment solutions for dangerous organic pollutants are crucial worldwide. In recent years, chemical reduction using noble metal-based nanocatalysts and NaBH4, a reducing agent, has become common practice eliminating contaminants from aquatic environments. We suggest straightforward approach to synthesizing magnetic cellulose nanocrystals (CNCs) modified with magnetite (Fe3O4) s...
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