Stable jets of viscoelastic fluids and self-assembled cylindrical capsules by hydrodynamic focusing

被引：46
作者：
Edmond, K. V.
Schofield, A. B.
Marquez, Manuel
Rothstein, J. P.
Dinsmore, A. D.
机构：
[1] Univ Massachusetts, Dept Phys, Hasbrouck Lab, Amherst, MA 01003 USA
[2] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland
[3] Philip Morris USA Res Ctr, INEST Grp, Richmond, VA 23234 USA
[4] Univ Massachusetts, Gunness Lab, Dept Mech & Ind Engn, Amherst, MA 01003 USA
来源：
LANGMUIR | 2006年 / 22卷 / 21期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1021/la0614987
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We demonstrate formation of long-lived cylindrical jets of a viscoelastic fluid using hydrodynamic focusing. A solution of polyacrylamide in water is driven coaxially with immiscible oil and subjected to strong extensional flow. At high flow rates, the aqueous phase forms jets that are 4-90 mu m in diameter and several centimeters long. The liquid surfaces of these jets are then used as templates for assembly of microspheres into novel rigid and hollow cylinders.
引用
收藏
页码：9052 / 9056
页数：5
相关论文
共 52 条
[1]   Dripping-jetting transitions in a dripping faucet [J].
Ambravaneswaran, B ;
Subramani, HJ ;
Phillips, SD ;
Basaran, OA .
PHYSICAL REVIEW LETTERS, 2004, 93 (03) :034501-1
[2]   Formation of dispersions using "flow focusing" in microchannels [J].
Anna, SL ;
Bontoux, N ;
Stone, HA .
APPLIED PHYSICS LETTERS, 2003, 82 (03) :364-366
[3]   Elasto-capillary thinning and breakup of model elastic liquids [J].
Anna, SL ;
McKinley, GH .
JOURNAL OF RHEOLOGY, 2001, 45 (01) :115-138
[4]   INTERFACIAL STUDIES RELATED TO RECOVERY OF MINERAL SLIMES IN A WATER-HYDROCARBON LIQUID-COLLECTOR SYSTEM [J].
BHARGAVA, A ;
FRANCIS, AV ;
BISWAS, AK .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1978, 64 (02) :214-227
[5]  
Bird R.B., 1987, DYNAMICS POLYM LIQUI
[6]   Spraying modes in coaxial jet electrospray with outer driving liquid [J].
Chen, XP ;
Jia, LB ;
Yin, XZ ;
Cheng, JS ;
Lu, J .
PHYSICS OF FLUIDS, 2005, 17 (03) :032101-1
[7]   Transition from dripping to jetting [J].
Clanet, C ;
Lasheras, JC .
JOURNAL OF FLUID MECHANICS, 1999, 383 :307-326
[8]   Formation of tectocapsules by assembly and cross-linking of poly(divinylbenzene-alt-maleic anhydride) spheres at the oil-water interface [J].
Croll, LM ;
Stöver, HDH .
LANGMUIR, 2003, 19 (14) :5918-5922
[9]   Controlled synthesis of nonspherical microparticles using microfluidics [J].
Dendukuri, D ;
Tsoi, K ;
Hatton, TA ;
Doyle, PS .
LANGMUIR, 2005, 21 (06) :2113-2116
[10]   Colloidosomes: Selectively permeable capsules composed of colloidal particles [J].
Dinsmore, AD ;
Hsu, MF ;
Nikolaides, MG ;
Marquez, M ;
Bausch, AR ;
Weitz, DA .
SCIENCE, 2002, 298 (5595) :1006-1009
123456