Abstract

Abdul Wahid Wahab¹, Abdul Karim¹, Nursiah La Nafie¹, Nurafni¹ and I. Wayan Sutapa²

DOI : http://dx.doi.org/10.13005/ojc/340652

Silver nanoparticles have been synthesized by reduction method using extract of Muntingia calabura L. leaf a bioreductor. The process of silver nanoparticles formation was monitored by UV-Vis method. The results showed that the absorbance values increased according to the increase of reaction time. Maximum absorption of silver nanoparticle was obtained at a wavelength of 41-421 nm. The size of silver nanoparticles was determined using a PSA (Particle Size Analyzer) with a particle size distribution of 97.04 nm. The functional groups compound that contribute in the synthesis was analyzed using Fourier Transform Infrared Spectroscopy (FTIR). Morphology of the silver nanoparticles was observed by an Scanning  Electron  Microscope  instrument and the structure  characterization of the compounds were analyzed using X-Ray Diffraction. The glucose nanosensor based on silver nanoparticles have the measurement range of 1 mM - 4 mM with the regretion (R²) is 0,9516, the detection limit of sensor is 3,2595 mM, the sensitivity of sensor is 2,0794 A. mM^-1. mM^-2.

Bioreductor; Extract; Muntingia Calabura L.; Nanosensor; Silver Nanoparticles

[ View HTML Full Text]