What is the process for preparing silver nanoparticles?
The most important physical methods for the synthesis of the silver nanoparticles are evaporation-condensation, laser ablation, electrical irradiation, gamma irradiation, and lithography.
What is the way of surface functionalization of a nanoparticle?
Surface functionalization of nanomaterials refers to assemble different organic and inorganic materials together in nanoscale through covalent bonds or noncovalent bonds including hydrogen bonds, the electrostatic force, or the van der Waals force [108].
What are the methods of synthesis of nanoparticles?
There are several methods for creating nanoparticles, including coprecipitation, hydrothermal synthesis, inert gas condensation, ion sputtering scattering, microemulsion, microwave, pulse laser ablation, sol-gel, sonochemical, spark discharge, template synthesis, and biological synthesis.
How do you prepare the concentration of silver nanoparticles?
Since the amount of silver nanoparticles added is only 100uL (0.1mL), therefore the initial concentration will reduce from 1280 ug/ml to 128 ug/ml. Then, the 128 ug/ml will be further diluted by the 100uL Muller Hinton Broth. Using M1V1 = M2V2, the final concentration of the silver nanoparticles will then be 64 ug/ml.
What is a capping agent?
A capping agent is an amphiphilic molecule consisting of polar head group and a nonpolar hydrocarbon tail and the functionality of the capping agent depends upon both the parts. The non-polar tail interacts with surrounding medium whereas polar head coordinates to the metal atom of the nanocrystals.
How do you separate silver nanoparticles from solution?
Best way to obtained Silver nanoparticles is to lyophilised the colloidal solution, which gives dry particles. Centrifugation and further washing may be useful to remove impurities before lyophilization. Chances of agglomeration is always there which will change size of particles.
What is physical method in synthesis of nanoparticles?
Physical Methods: (IGC) is a bottom-up approach to synthesize nanostructured materials, which involves two basic steps. The first step is the evaporation of the material and the second step involves a rapid controlled condensation to produce the required particle size.
