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METHODS OF NANOPARTICLE
SYNTHESIS
TOP-DOWN
APPROACH
BOTTOM-UP
APPROACH
PHYSICAL
METHODSS
BIOLOGICAL
METHODS
CHEMICAL
METHODS
Pulse Vapour
Deposition like
sputtering,
Laser ablation,
Electron Beam
Evaporation,
Vacuum Arc
Laser Pyrolysis
Flash Spray
Pyrolysis
Electro
spraying
Inert Gas
Condensation
High Energy
Ball Milling
Melt Mixing
Sol-Gel
Synthesis
Chemical
Vapour
Deposition(CV
D)
Plasma
Enhanced
Chemical
Vapour
Deposition(PEC
VD)
Micro-emulsion
Techniques
Hydrothermal
Synthesis
Polyol
Synthesis
Synthesis
assisted by
Plant Extracts
Biogenic
synthesis using
microorganisms
like bacteria,
fungi, algae,
yeast,
actinomycetes.
Bioassited
synthesis using
biomolecules
like nucleic
acids, viruses,
diatoms as
templates.
Fig. 5 Flowchart depicting an overview of different methods of nanoparticle synthesis