Allele Life Sciences Pvt Ltd.

Ethylene vinyl acetate (EVA)/thermoplastic starch (TPS) clay nanocomposites were prepared through melt intercalation technique using Haake Rheocord 9000 batch mixer with two different organically modified clays (Cloisite 30B & Cloisite 20A) at different weight percentages (1-7 wt %).The EVA/TPS ratio of 70: 30 was taken as optimum blend ratio as evidenced from the mechanical strength and chosen for the nanocomposites preparation in the presence of MA-g-PE as a compatibilizer. The maize starch was plasticized and gelatinized by adding glycerol and water in the ratio of 70:20:10.The blend nanocomposites have been examined by various techniques for characterization. Differential scanning calorimeter (DSC) result shows that the crystallization temperature of the nanocomposite blends is significantly lower than the base blend. Addition of 30 wt % of modified starch to make EVA/TPS blend; there is deterioration of impact strength, tensile strength, tensile modulus and elongation at break which was significantly increased after incorporation of small quantity (1-7 wt %) of nanoclay. Thermo gravimetric analysis (TGA) showed that the thermal stability of blend nanocomposites were better than those of EVA/TPS blend.

A review.Nanomedicine is the subfield of nanotechnol. which deliver a promising diagnostic as well as treatment of lethal diseases like cancer.By interacting with biol. mols., therefore at nanoscale, nanotechnol. opens up a vast field of research and application.These are the medicine which have very small in size or present in mol. level.There are more than one component of a nanomedicine which range from advance diagnostic devices, advance drug delivery vehicle including nanobots which are able to perform specific artificial surgeries with the ultimate degree of precision, which is never achieved in past.Future nanomedicine will be capable to detect the lethal diseases like cancer in very early stage.There will be also a possibility in future that with the help Nanomedicine are able to treat the genetic diseases or genetic disorder by targeting or repairing specific genes, tissue and cells which are responsible for these type of disorder with the help of nanomedicines.