Unfortunately, many of the nanoparticle synthesis or production
methods involve use of hazardous chemicals, low
material conversions, high energy requirements, difficult
and wasteful purifications. Biosynthetic methods employing
either biological microorganisms or plant extracts have
emerged as a simple and viable alternative to chemical synthetic
procedures and physical methods. Most of the methods
are still in the developmental stage and various
problems are often experienced with the stability of nanoparticle
preparations, control of crystal growth and aggregation
of particles.
Green synthesis provides advancement over chemical and
physical method as it is cost effective, environment friendly,
easily scaled up for large-scale synthesis and further there is
no need to use high pressure, energy, temperature and toxic
chemicals. Using plants for nanoparticle synthesis can be
advantageous over other biological processes because it eliminates
the elaborate process of maintaining cell cultures and can
also be suitably scaled up for large-scale synthesis of nanoparticles
under non- aseptic environment.
Unfortunately, many of the nanoparticle synthesis or productionmethods involve use of hazardous chemicals, lowmaterial conversions, high energy requirements, difficultand wasteful purifications. Biosynthetic methods employingeither biological microorganisms or plant extracts haveemerged as a simple and viable alternative to chemical syntheticprocedures and physical methods. Most of the methodsare still in the developmental stage and variousproblems are often experienced with the stability of nanoparticlepreparations, control of crystal growth and aggregationof particles.Green synthesis provides advancement over chemical andphysical method as it is cost effective, environment friendly,easily scaled up for large-scale synthesis and further there isno need to use high pressure, energy, temperature and toxicchemicals. Using plants for nanoparticle synthesis can beadvantageous over other biological processes because it eliminatesthe elaborate process of maintaining cell cultures and canalso be suitably scaled up for large-scale synthesis of nanoparticlesunder non- aseptic environment.
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