نتایج جستجو برای: synthesis dynamic light scattering dls

تعداد نتایج: 1270176  

2007
Mitsuhiro Shibayama Takeshi Karino Yusuke Domon Kohzo Ito

Small-angle neutron scattering (SANS) and dynamic light scattering (DLS) have been complementarily employed in order to investigate the structure and dynamics of slide-ring (SR) gels, a class of novel polymer gels having advanced mechanical properties. SR gels consist of long flexible polymer chains and movable cross-links along the polymer chain. It is demonstrated that complementary use is ne...

Background: Today, the synthesis of silver nanoparticles is very common due to their many applications in various fields. The synthesis of these nanoparticles is done by means of physical, chemical, or biological methods. However, due to its inexpensive and environmentally friendly features, the biological method is more preferable than the other two methods. Previous research has shown that ni...

The present work demonstrated a green approach of synthesis of gold nanoparticles using Eupatorium odoratum leaf extract as reducing and stabilizing agent assisted with microwave irradiation. Effects of various concentrations of leaf extract on the preparation of gold nanoparticles have been investigated and it was monitored by undertaking UV-vis spectroscopic studies. The experimental results ...

Journal: :The European physical journal. E, Soft matter 2009
M Reufer P Díaz-Leyva I Lynch F Scheffold

We present a light scattering study of aqueous suspensions of microgel particles consisting of poly(N-Isopropyl-Acrylamide) cross-linked gels. The solvent quality for the particles depends on temperature and thus allows tuning of the particle size. The particle synthesis parameters are chosen such that the resulting high surface charge of the particles prevents aggregation even in the maximally...

Journal: :molecular biology research communications 2013
hajar zamani ali moradshahi

plant phenolics have high reducing capacity which can be exploited in the synthesis of nanomaterials. in the present study, phytoreductant vanillic acid is used to produce and coat silver nanoparticles. the effects of ag nanoparticles on the unicellular green algae d. salina were then investigated. under optimum  ph and temperature, silver ions were reduced to silver metal by vanillic acid. the...

Journal: :The International Journal of Advanced Manufacturing Technology 2021

Nanotechnology is a significant research tool for biological and medical with major advancements achieved from nanoparticle (Np) applications in biosensing biotherapeutics. For laser ablation synthesis solution (LASiS) to be chosen by researchers Np colloid production, the process must effectively compete chemical terms of produced quality productivity while taking advantage LASiS benefits its ...

Journal: :Applied sciences 2021

The size, size distribution and magnetic properties of magnetite nanoparticles (NPs) prepared by co-precipitation without citrate, in the presence citrate adsorbed post-synthesis were studied X-ray Diffraction (XRD), Dynamic Light Scattering (DLS), Electron Paramagnetic Resonance (EPR) magnetization measurements. aim this investigation was to clarify effect ions on NPs. primary NPs, as determin...

Journal: :Macromolecular Chemistry and Physics 2023

Front Cover: In article 2300119 by Prokopios Georgopanos and co-workers, thermoresponsive particles from poly(N,N-dimethylacrylamide-co-N-isopropylacrylamide)-b-polystyrene are synthesized via reversible addition-fragmentation chain transfer (RAFT) emulsion polymerization analyzed dynamic light scattering (DLS) transmission electron microscopy (TEM). The scale-up of the synthesis requires sever...

Journal: :Brazilian Journal of Pharmaceutical Sciences 2022

Nanotechnology has been used in the field of medicine and pharmacology for its greater efficacy drug delivery than crude molecules drugs. In present study medicinal mushroom Ganoderma applanatum extract mediated silver nanoparticles (AgNPs) were synthesized, characterized by Ultraviolet-visible (UV-Vis.) spectroscopy, scanning electron microscopy (SEM), X-ray diffraction, Dynamic light scatteri...

Journal: :Colloids and interfaces 2023

Due to surface effects and quantum size effects, nanomaterials have properties that are vastly different from those of bulk materials due effects. The particle distribution plays an important role in chemical physical properties. measurement control this parameter crucial for nanomaterial synthesis. Dynamic light scattering (DLS) is a fast non-invasive tool used measure size, stability solution...

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