Show simple item record

dc.creatorVladisavljević, Goran T.
dc.creatorDuncanson, Wynter J.
dc.creatorShum, Ho Cheung
dc.creatorWeitz, David A.
dc.date.accessioned2018-03-01T22:46:12Z
dc.date.available2018-03-01T22:46:12Z
dc.date.issued2012
dc.identifier.issn0743-7463 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/5039
dc.description.abstractMonodisperse poly(DL-lactic acid) (PLA) particles of diameters between 11 and 121 mu m were fabricated in flow focusing glass microcapillary devices by evaporation of dichloromethane (DCM) from emulsion droplets at room temperature. The dispersed phase was 5% (w/w) PLA in DCM containing 0.1-2 mM Nile Red and the continuous phase was 5% (w/w) poly(vinyl alcohol) in reverse osmosis water. Particle diameter was 2.7 times smaller than the diameter of the emulsion droplet template, indicating very low particle porosity. Monodisperse droplets have only been produced under dripping regime using a wide range of dispersed phase flow rates (0.002-7.2 cm(3).h(-1)), continuous phase flow rates (0.3-30 cm(3).h(-1)), and orifice diameters (50-237 mu m). In the dripping regime, the ratio of droplet diameter to orifice diameter was inversely proportional to the 0.39 power of the ratio of the continuous phase flow rate to dispersed phase flow rate. Highly uniform droplets with a coefficient of variation (CV) below 2% and a ratio of the droplet diameter to orifice diameter of 0.5-1 were obtained at flow rate ratios of 4-25. Under jetting regime, polydisperse droplets (CV GT 6%) were formed by detachment from relatively long jets (between 4 and 10 times longer than droplet diameter) and a ratio of the droplet size to orifice size of 2-5.en
dc.relationEngineering and Physical Sciences Research Council (EPSRC) of the United Kingdom [EP/HO29923/1]
dc.rightsrestrictedAccessen
dc.sourceLangmuiren
dc.titleEmulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavioren
dc.typearticleen
dcterms.abstractДунцансон, Wyнтер Ј.; Владисављевић Горан Т.; Схум, Хо Цхеунг; Wеитз, Давид A.;
dc.citation.volume28
dc.citation.issue36
dc.citation.spage12948
dc.citation.epage12954
dc.identifier.wos000308839600003
dc.identifier.doi10.1021/la302092f
dc.citation.rankM21
dc.identifier.pmid22860633
dc.identifier.scopus2-s2.0-84866108686


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record