The biosynthesis of nanoparticles has been proposed as a cost effective environmental friendly alternative to chemical and physical methods. Microbial synthesis of nanoparticles is under exploration due to wide biomedical applications, research interest in nanotechnology and microbial biotechnology. In the present study, an ecofriendly process for the synthesis of nanoparticles using a novel No...

The synthesis of metals and nanoparticles is an expanding research area due to the potential applications for the development of novel technologies. Biosynthesis of silver nanoparticles was investigated by reducing sliver nitrate with Cassiaauriculataleaf extract at room temperature. The plant belongs to family Ceasalpiniaceae and the plant is having promising medicinal properties for a wide ra...

Dextran a polymer of glucose is produced by different microorganisms like Leuconostoc mesenteroides, Lactobacillus sps, Streptococcus mutants, Weissella confusa etc. It has a wide range of applications in the food, pharmaceuticals and other industries. It also has significant role in green synthesis of silver nanoparticles. In the present study an efficient low molecular dextran produced by an ...

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...

Objective: To synthesize silver nanoparticles from two medicinally important plant seed extracts of Cyperus esculentus and Butyrospermum paradoxum for the first time and to check the potency of the crude methanolic extracts and their synthesized nanoparticles on ten different human pathogens. The percentage yields of two seed extracts were 15.10% and 18.08% respectively and subjected to phytoch...

The change of the scattering properties of sodium, gold and silver spherical particles with size is discussed in the context of surface multipolar plasmon resonances. The presented surface plasmon size characteristics are abstracted from the quantity which is observed and deliver multipolar plasmon resonance frequencies and plasmon damping rates in the form of a continuous function of particle ...

Biologically synthesized nanoparticles have been widely using in the field of medicine. Biogenesis of nanoparticles have proven to be better methods due to slower kinetics and they offer better manipulation and control over crystal growth and their stabilization. The present study revealed that the phytosynthesis of silver nanoparticles from 1 mM AgNO3 solution through the leaf extract of Svens...

In-situ biosynthesis of silver nanoparticles for antibacterial activities doped with aqueous extract dry Gongronema Latifolium (DGL) is presented in this work. The absorbance was determined using a UV-Visible analysis peak 428 nm. obtained particles confirmed by the TEM image were spherical shape an average particle size between 5 and 20 A single crystalline phase FCC powder. functional groups ...

We demonstrate a microfluidic platform for the controlled aggregation of colloidal silver nanoparticles using surface acoustic waves (SAWs), enabling surface enhanced Raman scattering (SERS) analysis of oxidative damage in cells. We show that by varying the frequency and the power of the acoustic energy, it is possible to modulate the aggregation of the colloid within the sample and hence to op...