Rapid synthesis of silver nanoparticles from Polylthia longifolia leaves
Journal Title: Asian Pacific Journal of Tropical Disease - Year 2012, Vol 2, Issue 0
Abstract
Objective: Metallic nanoparticles are traditionally synthesized by wet chemical techniques, where the chemicals used are quite often toxic and flammable. In this research article we present a simple and eco-friendly biosynthesis of silver nanoparticles using P. longifolia leaf extract as reducing agent. Methods: Characterization using UV-Vis spectrophotometry, Transmission Electron Microscopy (TEM) was performed. Results: TEM showed the formation of silver nanoparticles with an average size of 57 nm. Conclusions: P. longifolia demonstrated strong potential for synthesis of silver nanoparticles by rapid reduction of silver ions (Ag+ to Ag0). Biological methods are a good competent for the chemical procedures, which are enviro- friendly and convenient.
Spectrum of opportunistic and other parasites among HIV/AIDS patients attending a tertiary care hospital
Objective: To determine the spectrum of opportunistic as well as non-opportunistic parasitic infections in HIV/AIDS patients. Methods: A total of 250 HIV sero-positive individuals are included in study. Among them, 76 cl...
Sero-prevalence of brucellosis among blood donors in Ahvaz, Southwest Iran
Objective: To identify sero-prevalence of brucellosis among blood donors in Ahvaz city, Southwest Iran. Methods: A total number of 1 450 serum samples from blood donation were collected and were screened for the presence...
Comparative study of in vitro antibacterial activity of leaves, bark, heart wood and seed extracts of Caesalpinia sappan L.
Objective: To evaluate and compare the maximum antimicrobial activity by screening different parts of Caesalpinia sappan L. extracted in different solvents against Salmonella ebony (MTCC 3384) (S. ebony), Klebsiella pneu...
Non tuberculosis mycobacteria isolates among new and previously treated pulmonary tuberculosis patients in Nigeria
Objective: To determine the prevalence of non tuberculosis mycobacteria (NTM) among new and previously treated tuberculosis (TB) patients in Nigeria. Methods: It was a retrospective study. A total of 102 sputum smear pos...
Anti-neutrophilic cytoplasmic antibody-positive cutaneous leucocytoclastic vasculitis due to scrub typhus
Leucocytoclastic vasculitis (LCV) is a small-vessel vasculitis affecting the postcapillary venules presenting as papules, purpura and maculopapular rash, occurring as a primary disorder or secondary to malignancies, drug...