nanospheres

1. A RECENT APPROACH FOR NOVEL DRUG DELIVERY
SYSTEM – NANOSPHERES
BY
R.Saikiran goud
C.M.R college of pharmacy
B.pharmacy III year

2. CONTENTS:-
 INTRODUCTION
 METHOD OF PREPARATION
 TARGETED DRUG DELIVERY
 BENEFITS
 DRABACKS
 FUTURE PROSPECTS
 CONCLUSION

3. INTRODUCTION
 Nanosphers are class of “Nanoparticles” , which have
homogeneous structure in the whole particle.
 DEFINATION :
Nanospheres are the particles having the size range
between 10-200nm in diameter and they can be amorphous
or crystalline in nature .
They have the ability to protect the drug from “enzymatic
and chemical degradation ”.

4. METHODS OF PREPARATIONS
 This includes the following methods
Polymerisation Solvent Solvent Phase inversion
Evaporation displacement temperature method

5. POLYMERIZATION
polymeric compounds
drug
incorporation
removed for stabilization
& polymerization
centrifugation
Polymethylmethacrylate &
polyethylcyanocrylate emulsified
Polymerization of
manomers in
Aqueous
Nanospheres are
formed
Nanospheres
By dissloving in
polymerised
medium
Adsorption onto
nanosphers after
polymerisation is
completed