TY  - CONF
AU  - Vladisavljević, Goran T.
AU  - Shum, Ho Cheung
AU  - Weitz, David A.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6983
AB  - Monodisperse core/shell drops with aqueous core and poly(dimethylsiloxane) (PDMS) shell of controllable thickness have been produced using a glass microcapillary device that combines co-flow and flow-focusing geometries. The throughput of the droplet generation was high, with droplet generation frequency in the range from 1,000 to 10,000 Hz. The size of the droplets can be tuned by changing the flow rate of the continuous phase. The technique enables control over the shell thickness through adjusting the flow rate ratio of the middle to inner phase. As the flow rate of the middle and inner phase increases, the droplet breakup occurs in the dripping-to-jetting transition regime, with each double emulsion droplet containing two monodisperse internal aqueous droplets. The resultant drops can be used subsequently as templates for monodisperse polymer capsules with a single or multiple inner compartments, as well as functional vesicles such as liposomes, polymersomes and colloidosomes.
C3  - Progress in Colloid and Polymer Science
T1  - Control over the Shell Thickness of Core/Shell Drops in Three-Phase Glass Capillary Devices
VL  - 139
SP  - 115
EP  - +
DO  - 10.1007/978-3-642-28974-3_20
ER  - 

@conference{
author = "Vladisavljević, Goran T. and Shum, Ho Cheung and Weitz, David A.",
year = "2012",
abstract = "Monodisperse core/shell drops with aqueous core and poly(dimethylsiloxane) (PDMS) shell of controllable thickness have been produced using a glass microcapillary device that combines co-flow and flow-focusing geometries. The throughput of the droplet generation was high, with droplet generation frequency in the range from 1,000 to 10,000 Hz. The size of the droplets can be tuned by changing the flow rate of the continuous phase. The technique enables control over the shell thickness through adjusting the flow rate ratio of the middle to inner phase. As the flow rate of the middle and inner phase increases, the droplet breakup occurs in the dripping-to-jetting transition regime, with each double emulsion droplet containing two monodisperse internal aqueous droplets. The resultant drops can be used subsequently as templates for monodisperse polymer capsules with a single or multiple inner compartments, as well as functional vesicles such as liposomes, polymersomes and colloidosomes.",
journal = "Progress in Colloid and Polymer Science",
title = "Control over the Shell Thickness of Core/Shell Drops in Three-Phase Glass Capillary Devices",
volume = "139",
pages = "115-+",
doi = "10.1007/978-3-642-28974-3_20"
}

Vladisavljević, G. T., Shum, H. C.,& Weitz, D. A.. (2012). Control over the Shell Thickness of Core/Shell Drops in Three-Phase Glass Capillary Devices. in Progress in Colloid and Polymer Science, 139, 115-+.
https://doi.org/10.1007/978-3-642-28974-3_20

Vladisavljević GT, Shum HC, Weitz DA. Control over the Shell Thickness of Core/Shell Drops in Three-Phase Glass Capillary Devices. in Progress in Colloid and Polymer Science. 2012;139:115-+.
doi:10.1007/978-3-642-28974-3_20 .

Vladisavljević, Goran T., Shum, Ho Cheung, Weitz, David A., "Control over the Shell Thickness of Core/Shell Drops in Three-Phase Glass Capillary Devices" in Progress in Colloid and Polymer Science, 139 (2012):115-+,
https://doi.org/10.1007/978-3-642-28974-3_20 . .

TY  - JOUR
AU  - Vladisavljević, Goran T.
AU  - Duncanson, Wynter J.
AU  - Shum, Ho Cheung
AU  - Weitz, David A.
PY  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5039
AB  - Monodisperse 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.
T2  - Langmuir
T1  - Emulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavior
VL  - 28
IS  - 36
SP  - 12948
EP  - 12954
DO  - 10.1021/la302092f
ER  - 

@article{
author = "Vladisavljević, Goran T. and Duncanson, Wynter J. and Shum, Ho Cheung and Weitz, David A.",
year = "2012",
abstract = "Monodisperse 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.",
journal = "Langmuir",
title = "Emulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavior",
volume = "28",
number = "36",
pages = "12948-12954",
doi = "10.1021/la302092f"
}

Vladisavljević, G. T., Duncanson, W. J., Shum, H. C.,& Weitz, D. A.. (2012). Emulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavior. in Langmuir, 28(36), 12948-12954.
https://doi.org/10.1021/la302092f

Vladisavljević GT, Duncanson WJ, Shum HC, Weitz DA. Emulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavior. in Langmuir. 2012;28(36):12948-12954.
doi:10.1021/la302092f .

Vladisavljević, Goran T., Duncanson, Wynter J., Shum, Ho Cheung, Weitz, David A., "Emulsion Templating of Poly(lactic acid) Particles: Droplet Formation Behavior" in Langmuir, 28, no. 36 (2012):12948-12954,
https://doi.org/10.1021/la302092f . .