@article { ISI:000263397900005, title = {Manipulation of magnetic nanostructures through low temperature metal-oxygen chemistry: Co/CoO exchange biased nanodonuts and Co nanotips}, journal = {Solid State Communications}, volume = {149}, number = {7-8}, year = {2009}, month = {FEB}, pages = {277-280}, publisher = {PERGAMON-ELSEVIER SCIENCE LTD}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND}, abstract = {

Dense nanodonut and nanotip type morphologies are shown to self-evolve in Ultrathin cobalt films during growth under Vacuum, depending oil the level of oxygen incorporation and temperature. The nanodonut morphology forms at room temperature and the corresponding magnetic hysteresis shows exchange bias (similar to 35 Oe shift along the field axis), which is attributed to the presence of CoO and its exchange Coupling with cobalt. The morphology evolves into nanotip features with increase of growth temperature, with Concurrent elimination of the oxide component and exchange bias. (C) 2008 Elsevier Ltd. All rights reserved.

}, keywords = {Co/CoO, Magnetic film, self assembly, Vacuum evaporation}, issn = {0038-1098}, doi = {10.1016/j.ssc.2008.12.019}, author = {Phase, Deodatta and Choudhary, Ram Janay and Ganesan, V. and Reddy, V. Raghvendra and Gupta, Ajay and Selvi, N. and Kulkarni, Sneha and Ogale, Satishchandra} } @article { ISI:000288291400015, title = {Self-standing three-dimensional networks of nanoparticles with controllable morphology by dynamic templating of surfactant hexagonal domains}, journal = {Chemistry of Materials}, volume = {23}, number = {6}, year = {2011}, month = {APR}, pages = {1448-1455}, publisher = {AMER CHEMICAL SOC}, type = {Article}, address = {1155 16TH ST, NW, WASHINGTON, DC 20036 USA}, abstract = {

Assembly of nanoparticles into free-standing three-dimensional networks has implications for a wide range of applications. We show that dynamic templating of surfactant hexagonal domains is a facile technique to organize nanoparticles into a network of particulate strands. Dispersed particles (\> 10 nm), independent of particle chemistry, assemble into networks, when the surfactant matrix cools into the hexagonal phase. We demonstrate assembly of inorganic, polymeric, and protein nanoparticles into networks. Where particle assembly is reversible, particles are coated with polymers that are subsequently cross-linked to stabilize the networks after surfactant removal. This technique involves near ambient temperatures and a benign water wash for template removal. The network mesh size can be varied from submicrometers to tens of micrometers by controlling the cooling rate. Particle networks can be flow-oriented prior to cross-linking, and interpenetrating networks can also be formed.

}, keywords = {hexagonal, macroporous, nanoparticle, self assembly, surfactant}, issn = {0897-4756}, doi = {10.1021/cm102945x}, author = {Sharma, Kamendra P. and Ganai, Anal Kumar and Sen Gupta, Sayam and Kumaraswamy, Guruswamy} } @article { ISI:000375723900014, title = {Structural insight into self assembly of sophorolipids: a molecular dynamics simulation study}, journal = {Zeitschrift Fur Physikalische Chemie-International Journal of Research in Physical Chemistry \& Chemical Physics}, volume = {230}, number = {5-7, SI}, year = {2016}, month = {MAY}, pages = {819-836}, publisher = {WALTER DE GRUYTER GMBH}, address = {GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY}, abstract = {

Sophorolipids contain hydrophilic head groups at the ends of a long hydrophobic tail. As a result, sophorolipids can self assemble into variety of structures in water. Atomistic self assembly simulations of sophorolipids are performed in water. Two sophorolipids, oleic acid sophorolipid and linolenic acid sophorolipid, differing in number of double bonds in the hydrophobic tail are considered for this study. Long time self assembly simulations are performed considering 1 :3 lipid to water ratio by weight for both oleic and linolenic acid sophorolipids. In addition to 1 : 3 ratio, long time self assembly simulations are also performed with 1 : 1 and 1 : 2 ratios for linolenic acid sophorolipids. Distinctions in structural arrangements of sophorolipid molecules in the self assembled configuration for all the systems are investigated. The present study aims to provide structural insight into the different self assembled configurations of sophorolipids in water.

}, keywords = {MD Simulation, self assembly, sophorolipids, United Atom Force Field}, issn = {0942-9352}, doi = {10.1515/zpch-2015-0719}, author = {Pandey, Prithvi Raj and Dhasaiyan, Prabhu and Bhagavatula L. V. Prasad and Roy, Sudip} }