The present study focused on the evaluation of a nonspecific synergistic effect of biogenic silver nanoparticles (AgNPs) in combination with biosurfactants against environmental bacteria and fungi. The AgNPs were synthesized in the culture supernatants of the biosurfactant producer Bacillus subtilis grown in brewery effluent, molasses or Luria-Bertani media. Antibacterial activities were tested...

Present study reports the biogenesis of silver nanoparticles from the leaves of Cardiospermum halicacabum L. and their characterization. C. halicacabum has been used in traditional medicines but so far it has not been tested for synthesis of silver nanoparticles (AgNPs). The aqueous silver ions exposed to the herbal extract, which were reduced and the nanoparticles were synthesized. The presenc...

Objective: Green synthesis, characterization of silver nanoparticles (AgNPs) and study of the synergistic effect of AgNPs with antibiotic doxycycline against Klebsiella pneumonia. Methods: AgNps were synthesized from bacteria isolated from samples obtained from petroleum soil. After characterization of the nanoparticles, the antibacterial activity of the nanoparticle was studied, and simultaneo...

The use of microorganisms like bacteria in the synthesis of nanoparticles emerges as an eco-friendly approach and an alternative to the chemical method. In the present investigation, we report the biosynthesis of silver nanoparticles (AgNPs) using the phosphate solubilizing bacterium Pseudomonas aeruginosa KUPSB12. Silver nanoparticles were synthesized through the reduction of aqueous Ag ion us...

a simple, fast and one-pot synthesis procedure based on the bioreduction ability of an algal extract solution has been developed to produce silver nanoparticles (agnps). we focus especially on the influencing factors of agnps formation. the effects of various factors like ph, temperature, the concentration of metal ions and alga, the volume ratio of silver nitrate solution to alga extract, reac...

The increasing commercial production of engineered nanoparticles (ENPs) has led to concerns over the potential adverse impacts of these ENPs on biota in natural environments. Silver nanoparticles (AgNPs) are one of the most widely used ENPs and are expected to enter natural ecosystems. Here we examined the effects of AgNPs on germination and growth of eleven species of common wetland plants. We...

Synthesis of silver nanoparticles (AgNPs) with biological properties is of vast significance in the development of scientifically valuable products. In the present study, we describe simple, unprecedented, nontoxic, eco-friendly, green synthesis of AgNPs using an Indian traditional farming formulating agent, panchakavya. Silver nitrate (1 mM) solution was mixed with panchakavya filtrate for the...

Candida albicans is the most common fungal pathogen in humans, and recently some studies have reported the antifungal activity of silver nanoparticles (AgNPs) against some Candida species. However, ultrastructural analyses on the interaction of AgNPs with these microorganisms have not been reported. In this work we evaluated the effect of AgNPs on C. albicans, and the minimum inhibitory concent...

Silver in its original form or in the form nanoparticles has been known from time immemorial in order to control different types of diseases. During last few decades, bacteria have made themselves resistant to varied antibiotics available in the market based on their genetic configurations. In our present study, simple and effective approach was performed to synthesize potent silver nanoparticl...

Staphylococcus aureus is a type of Gram-positive bacteria that can cause different healthcare-associated infections. Silver nanoparticles (AgNPs) are considered to be used in various applications against bacteria that are resistant to common antibiotics or even multiresistant bacteria as the S. aureus. This work evaluated the antimicrobial activity of AgNPs in strains of S. aureus resistant to ...