Fabrication of organic and inorganic nanoparticles using electrospray

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dc.contributor.advisor Kameoka , Jun en_US
dc.contributor.committeeMember Liang , Hong en_US
dc.creator Deotare , Parag Bhaskar en_US
dc.date.accessioned 2010 -01 -14T23 :59 :46Z
dc.date.accessioned 2014 -02 -19T19 :35 :50Z
dc.date.available 2010 -01 -14T23 :59 :46Z
dc.date.available 2014 -02 -19T19 :35 :50Z
dc.date.created 2007 -05 en_US
dc.date.issued 2009 -05 -15 en_US
dc.identifier.uri http : / /hdl .handle .net /1969 .1 /ETD -TAMU -1290
dc.description.abstract A new fabrication process of organic and inorganic nanoparticles and cups by electrospraying blended polymer -sol -gel solutions followed by calcination has been investigated . Because of low viscosity and high surface tension of blended polymersol - gel solutions , an electrostatically extruded continuous liquid jet from the spray source became tiny droplets with diameter of less than 1 ?m in transit . They were collected as dried formats at the counter electrode . These are then calcinated to eliminate polymers as well as cross -link sol -gel material . Silica nanocups have been fabricated using the above technique and the probable methods to control their morphology by varying the ionic concentration have been investigated . Experiments with biodegradable polymers , like Poly Lactic Acid (PLA ) and polyvinylpyrrolidine (PVP ) to fabricate nanoparticles using the above technique , have also been carried out . The potential use of such biodegradable particles in drug delivery has been demonstrated . This method can encapsulate drug in the particles without the need of any stabilizer which can cause unwanted effect on the drug . The effect of solvents , polymer concentration and deposition distance on morphology and diameter of particles was also investigated on PLA particles . This process is a simple and efficient approach for producing nanocomposite cups that cannot be made by an aggregation method and also nano /micro particles which may find their use in drug delivery and filtration media . Finally , a new technique to sort the particles based on their dimensions is demonstrated . Because of interactions between charged droplets and a non -linear electrostatic field , nanoparticles with different dimensions are deposited at different locations . By using this principle , silica nanocups have been sorted into three groups with mean diameters of 0 .31 ?m , 0 .7 ?m and 1 .1 ?m and a standard deviation of 20 % . en_US
dc.format.medium electronic en_US
dc.format.mimetype application /pdf en_US
dc.language.iso en _US en_US
dc.subject Nanoparticles en_US
dc.title Fabrication of organic and inorganic nanoparticles using electrospray en_US
dc.type Book en
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

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Fabrication of organic and inorganic nanoparticles using electrospray. Available electronically from http : / /hdl .handle .net /1969 .1 /ETD -TAMU -1290 .

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