Welcome to TiddlyWiki created by Jeremy Ruston, Copyright © 2007 UnaMesa Association
| [img[Group2009|images/group/group2009.jpg]] |
| ''Group Picture in Summer 2009 (Srinivas's ~PhD Graduation!)'' |
| (Left to right: Dr. Zhengdong Cheng, Peng He, Srinivas Rao Pullela, Andres Mejia, and Guanqun Wang) |
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| [img[Group2007|images/group/group2007.jpg]] |
| ''Group Picture in Summer 2007'' |
| (Left to right: Matthew Hinshelwood, Peng He, Mark Netemeyer, Dr. Zhengdong Cheng, Srinivas Rao Pullela and Andres Mejia) |
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| [img[Group2006|images/group/group2006.jpg]] |
| ''Group Picture in Spring 2006'' |
| (Left to right: Haejune Kim, Guangnan Meng, Peng He, Susanna Wong, Dawei Luo, Tieying Gong, Srinivas Rao Pullela, Dr. Zhengdong Cheng and Jingyi Shen) |
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!2009
*''"Uniform Discotic Wax Particle Synthesis by Electrospray Emulsification"'',<br>Andres F. Mejia*, Peng He, Da-Wei Luo, Manuel Marquez and Zheng-Dong Cheng, J. Colloid and Interface Science (2009), Vol 334, Issue 1, pp 22-28
*''"Temperature dependence of the oregonator model for the Belousov-Zhabotinsky reaction"'',<br>Srinivasa R. Pullela*, Diego Cristancho, Peng He, Kenneth R. Hall, and Zheng-Dong Cheng. Phys. Chem. Chem. Phys., 2009, DOI: 10.1039/b820464k
*''"A comparative study of temperature dependence of induction time and oscillatory frequency in polymer-immobilized and free catalyst Belousov-Zhabotinsky reactions"'',<br>Srinivasa R. Pullela*, Jing-Yi Shen, Manuel Marquez and Zheng-Dong Cheng. Journal of Polymer Science Part B: Polymer Physics (2009), Volume 47 Issue 9, pp. 847 - 854
*''"Sedimentation and Creaming of Colloidal Disks in Regulation of Alignment with Flow"'',<br>Peng He*, Andres F. Mejia, Dazhi Sun, Dean S. Dinair, Manuel Marquez, Hung-Jue Sue and Zheng-Dong Cheng, to be submitted to Nature Physics
*''"Discotic Colloids: An emerging frontier in Colloid and Interface Science"'',<br>Peng He* and Zheng-Dong Cheng, CACS(Chinese American Chemical Society) Communications (Spring 2009)
!2008
*''"Thermosensitive Hard Spheres"'',<br>Matthews Clemements*, Srinivasa R. Pullela, ~Jing-Yi Shen, ~Tie-Ying Gong and ~Zheng-Dong Cheng, J. Colloid and Interface Science, 317, 2008, 96. [[[PDF|doc/pdf/Matt.JCIS.2008.pdf]]]
*''"Generation of monodisperse mesoporous silica microspheres with controllable size and surface morphology via a microfluidic device"'',<br>Inho Lee*, Yeonshick Yoo, Zheng-Dong Cheng and Hae-Kwon Jeong,Advanced Functional Materials, (in press)
*''"Preparation and properties of polyurethanes based on castor oil chemically modified with YUCCA starch glycoside"'',<br>M. F. Valro*, J. E. Pulido, J. C. Hernandez, J. A. Posada, A. Ramirez and Zheng-Dong Cheng, J. Elastomers and Plastics, (in press)
*''"Shape transformation of emulsions by surfactants-assisted surface freezing"'',<br>Andres F. Mejia*, Peng He, Mark Netemeyer, Da-Wei Luo, Manuel Marquez and Zheng-Dong Cheng, to be submitted to Nature
!2007
*''"Dynamic modes of liquid droplets production in microfluidic devices of flow-focusing"'', <br>Zheng-Dong Cheng, G. Cristal, Darren R. Link, Michael P. Brenner, Howard A.Stone and David A. Weitz, preprint
*''"Colloidal segregation inside squeezed droplets moving along straight microchannels"'',<br>G. Cristal, Zheng-Dong Cheng, Darren R. Link, Michael P. Brenner, Stone, H.D., David A. Weitz, preprint
*''"Atomization of Materials by Emulsion-solvent Evaporation"'',<br>Susanna, Wong, Da-Wei Luo, Guang-Nan Meng, Manuel Marquez and Zheng-Dong Cheng, preprint, submitted to Langmuir
*''"A Ternary Phase Diagram for the [[Belousov-Zhabotinsky|Research - BZ Reactions]] Reaction Induced Mechanical Oscillation of Thermo-responsive PNIPAM Gel Particles"'',<br>Srinivasa R. Pullela, Jing-Yi Shen, Manuel Marquez and Zheng-Dong Cheng, J. Phys. Chem. A.
*''"Cell Encapsules with Tunable Transport and Mechanical Properties"'',<br>Da-Wei Luo , Srinivasa R. Pullela, Manuel Marquez and Zheng-Dong Cheng, Biomicrofluidics , 1, 034102 (2007) [PDF]
*''"Nucleation Rate Measurement of Colloidal Crystallization using Microfluidic Emulsion Droplets"'',<br>Tie-Ying Gong, Jing-Yi Shen, Zhi-Bing Hu, Manuel Marquez and Zheng-Dong Cheng, Langmuir, 23, 2007, 2919-2923 [PDF]
!2006
*''"Electric control of droplets in microfluidic devices"'', <br>Darren R. Link, E. Graslasn-Mongrain, A. Duri, F. Sarrazin, Zheng-Dong Cheng, G. Cristobal, Manuel Marquez and David A. Weitz, Angewandte Chemie International Edition, 45, 2006, 2556 [PDF]
!2004
*''"Manipulation of microdisks in laser tweezers"'', <br>Zheng-Dong Cheng, Alberto Fernandez de las Nieves, Manuel Marquez, David A. Weitz, Thomas G. Mason, Paul M. Chaikin and Zheng-Dong Cheng, SPIE Proceeding, Denver, Colorado, 2004
*''"A new device for the generation of microbubbles and microfoams"'', <br>J. M. Gordillo, Zheng-Dong Cheng, Manuel Marquez and David A. Weitz, Physics of Fluids, 16, 2004, 2828
*''"Pattern coarsening in a 2D hexagonal system"'', <br>C. Harrison, D. E. Angelescu, M. Trawick, Zheng-Dong Cheng, D. A. Huse, Paul M. Chaikin, D. A. Vega, J. M. Sebastian, R. A. Register and D. H. Adamson, Europhys. Lett. 67, 800-806 (2004)
*''"Crystallization kinetics of thermosensitive colloids probed by transmission spectroscopy"'', <br>Zhi-Bing Hu, S. Tang, Zheng-Dong Cheng and J. Wu, Langmuir, 28, 2004, 8858
!2003
*''"Periodic oscillation of a colloidal disk near a wall in an optical trap"'', <br>Zheng-Dong Cheng, Thomas G. Mason and Paul M. Chaikin, Phys. Rev. E 68, 2003, 051404
*''"Rotational Diffusion Microrheology"'', <br>Zheng-Dong Cheng and Thomas G. Mason, Phys. Rev. Lett. 90, 2003, 018304
*''"Control of colloids with gravity, temperature gradients, and electric fields"'', <br>M. K. Zhao, C. Harrison, R. M. Megens, A. Hollingsworth, W. B Russel, Zheng-Dong Cheng, Thomas G. Mason and Paul M. Chaikin, J. Phys.: Condens. Matter 15 (2003) S11–S18
!2002
*''"Light Streak Tracking of Optically Trapped Thin Microdisks"'', <br>Zheng-Dong Cheng, Paul M. Chaikin and Thomas G. Mason, Phys. Rev. Lett. 89, 2002, 108303
*''"Dynamics of pattern coarsening in a two-dimensional smectic system"'', <br>C. Harrison, Zheng-Dong. Cheng, S. Sethuraman, D. A. Huse, Paul M. Chaikin, D. A. Vega, J. M. Sebastian, R. A. Register and D. H. Adamson, Phys. Rev. E 66, 2002, 011706
*''"On the Nature of the Divergence in the Low Shear Viscosity of Colloidal Hard-Sphere Dispersions"'', <br>Zheng-Dong Cheng, Paul M. Chaikin, S. Phan and W. B. Russel, Phys. Rev. E 65, 2002, 041405
*''"Crystallization Kinetics of Hard Spheres in Microgravity in the Coexistence Regime: Interactions between Growing Crystallites"'', <br>Zheng-Dong Cheng, Paul M. Chaikin, J. Zhu, W. B. Russel, and W. V. Meyer, Phys. Rev. Lett. 88, 2002, 015501
!1996-2001
*''"Colloidal Hard-sphere Crystallization Kinetics in Microgravity and Normal Gravity"'', <br>Zheng-Dong Cheng, J. Zhu, W.V. Meyer, W.B. Russel and Paul M. Chaikin, Applied Optics 40, 2001, 4146 (& cover hologram)
*''"Phase Diagram of Hard Spheres"'', <br>Zheng-Dong Cheng, Paul M. Chaikin, W.B. Russel, W.V. Meyer, J. Zhu, R.B. Rogers and R.H. Ottewill, Materials & Design 22, 2001, 529
*''"Mechanisms of Ordering in Striped Patterns"'', <br>C. Harrison, D.H. Adamson, Zheng-Dong Cheng, J.M. Sebastian, S. Sethuraman, D.A. Huse, R.A. Register and Paul M. Chaikin, Science 290, 2000, 1558
*''"Phonons in an Entropic Crystal"'', <br>Zheng-Dong Cheng, J. Zhu, W.B. Russel and Paul M. Chaikin, Phys. Rev. Lett. 85, 2000, 1460
*''"Controlled growth of hard-sphere colloidal crystals"'', <br>Zheng-Dong Cheng, W.B. Russel and Paul M. Chaikin, Nature 401, 1999, 893
*''"Phase diagram, equation of state, limit viscosity of hard-sphere suspensions"'', <br>S. phan et al., Zheng-Dong Cheng, W.B. Russel, Zhu J. Zhu, Paul M. Chaikin, J.H. Dunsmuir and R.H. Ottewill, Phys. Rev. E 54, 1996, 6633.
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* May 2009, Congratulations to Srinivasa R. Pullela, the first PhD from Cheng's group!
* April 2009, Andres's paper is published at Journal of Colloid and Interface Science, congratulations!
* Febrary 2009, Srinivas's paper are published at Phys. Chem. Chem. Phys. and Journal of Polymer Science Part B, congratulations!
* Sep 2008, Guanqun Wang joins our group, welcome!
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!Boss
*Zhengdong Cheng (Assistant Professor) <br><br> email: cheng AT chemail.tamu.edu <br> phone: 979-845-3413 <br> office: 202 Jack E Brown Building <br><br> Curriculum Vitae (Word Document)
!Students
*Srinivas Pullela (Ph.D. student) <br><br> email:srini830 AT tamu.edu <br> phone: 979-862-1072 <br> office: 407 Jack E Brown Building
*Peng He (Ph.D. student) <br><br> email:Peng.He AT chemail.tamu.edu <br> phone: 979-862-1072 <br> office: 407 Jack E Brown Building
*Andres Mejia (Ph.D. Student) <br><br> email:Andres.Mejia AT chemail.tamu.edu <br> phone: 979-862-1072 <br> office: 407 Jack E Brown Building
*Guanqun Wang (Master Student) <br><br> phone: 979-862-1072 <br> office: 407 Jack E Brown Building
!Alumni
*Jingyi Shen (Post Doc) <br><br> email:jingyi.shen AT chemail.tamu.edu
*Dawei Luo (Post Doc) <br><br> email:dawei.luo AT chemail.tamu.edu
*Tieying Gong (Post Doc) <br><br> email:tieying.gong AT chemail.tamu.edu
*Guangnan Meng (Post Doc) <br><br> email:Guangnan.Meng AT chemail.tamu.edu
*Haejun Kim (Master student) <br><br> email:haejuni AT tamu.edu
*Susanna Wong (Master student) <br><br> email:susanna.wong AT chemail.tamu.edu
!Conferences
*Zhengdong Cheng, ''"Dynamics of colloids and droplets"'', TEXMEMS VII, International and Interregional Collaborations, 4 September, 2004, College Station, TX
*Zhengdond Cheng, ''"Design and Control of Complex Fluids"'', First INEST Meeting, Droplet NanoEngineering, Williamsburg, Virginia, May 15 - 18, 2005
*Dawei Luo and Zhengdong Cheng, ''"Preparation of Calcium Alginate Gel Droplets by Internal Gelation on a Microfluidic Platform"'', TEXMEMS VII– International and Interregional Collaborations,21-22 September, 2005, El Paso, TX.
*Guangnan Meng, Susanna Wong and Zhengdong Cheng, ''"Liquid Crystalline Phases of Homogenous Disk-like Particles"'', TEXMEMS VII– International and Interregional Collaborations,21-22 September, 2005, El Paso, TX.
*Dawei Luo and Zhengdong Cheng. ''"Microencapsulation using Microuidic Device"'', PMUSA symposium, Oct. 2005
*Zhengdong Cheng, ''"Microencapsulation using Microuidic Device"'', 23rd Annual Houston Conference on Biomedical Engineering Research, Feb. 10, 2006, University of Houston.
*Dawei Luo, Manual Marqueez, Zhengdong Cheng, ''"Microencapsulation using Microuidic Device"'', PMUSA symposium, Feb. 29-March 3, 2006
*Guangnan Meng, Susanna Wong, Dawei Luo, Zhengdong Cheng, ''"Liquid crystalline materials of monodisperse microdisks"'', PMUSA symposium, Feb. 29-March 3, 2006
!Invited Talk
*MIT, Department of Mechanical Engineering, 2004 ''"Discotic Colloids"''
*University of Central Florida, Department of physics, 2004, ''"Dynamics of Colloids and Droplets"''
*Texas A&M University, Department of Chemical Engineering, 2004 ''"Dynamics of Colloids and Droplets"''
*Virginia Commonwealth University, Department of Mechanical Engineering, 2004, ''"Dynamics of Colloids and Droplets"''
*Colorado School of Mines, Department of Mechanical Engineering, 2004, ''"Dynamics of Colloids and Droplets"''
*Virginia polytechnic Institute and State University, Department of Physics, 2004, ''"Dynamics of Colloids and Droplets"''
*Rensselaer Polytechnic Institute, Department of Physics, 2004 ''"Dynamics of Colloids and Droplets"''
*Schlumberger-Doll Research, 2004 ''"Dynamics of Colloids and Droplets"''
*Syracuse University, Department of Physics, 2004, ''"Dynamics of Colloids and Droplets"''
*Yale University, Department of Mechanical Engineering, 2003, ''"Dynamics of Colloids and Droplets"''
*Case Western Reserve University, Physics, 2003 ''"Control of colloids with gravity, temperature gradient and optical field"''
*Rhodia Corporation, 2003 ''"Control of colloids with gravity, temperature gradient and optical field"''
*University of Chicago, Physics, 2002, ''"Control of colloids with gravity, temperature gradient and optical field"''
*Harvard University, DEAS, 2002, ''"Control of colloids with gravity, temperature gradient and optical field"''
*New Jersey Institute of Technology, ''"Colloidal Crystallization in the Space Shuttles"'' (SIGMA XI Seminar)
*NIST, 2001: ''"Colloidal hard spheres and disks"''
*Brown University, 2000, ''"Hard spheres in space"''
*University of Pennsylvania, 1999, ''"Colloidal Hard-sphere Crystallization & glass transition"''
*MRS 1999: ''"Hard sphere suspension crystallization kinetics"''
*APS 2000: ''"Gravitational Effects on the Crystallization of Colloidal Hard Spheres"''
<<tabs tabsClass
Journal "List of articles published on journals" JournalArticles
Presentations "List of conferences and invited talks" Presentations
>>
!Ternary Phase Diagram for the ~Belousov-Zhabotinsky Reaction Induced Mechanical Oscillation of Intelligent PNIPAM Colloids.
[img[BZ-diagram|images/research/BZ-diagram.JPG]]
Belousov-Zhabotinsky (BZ) reaction-induced mechanical oscillation of poly(N-isopropylacrylamide) (PNIPAM) gel particles was investigated by the systematic variation of BZ substrate concentrations. The correlation between the dynamic behavior and substrate concentrations was presented in a ternary phase diagram. Both oscillatory and steady-state regimes exist on the phase diagram and are separated by a high-frequency oscillation band. Dependence of oscillation frequency and induction time on the substrate concentrations was also studied. To achieve size uniformity, these PNIPAM gel particles with covalently bound tris(bipyridyl)ruthenium(II) were synthesized via the coordination chemistry between a ruthenium complex and the monodispersed PNIPAM gel particles bearing bipyridine ligands.
!Cell encapsulation using microfluidics device
[img[Cell Encapsulation|images/research/cell_encapsulation.JPG]]
{{textjustify{
We are studying the method to fabricate cell enclosing capsules on microfluidic platform. Polymer membrane of the capsule will act as an immunological barrier to protect cells inside after transplantation. This technology can be applied to a wide range of therapeutic treatments.}}}
!Electro-controlled Microfluidics
[img[Electro-Microfluidics|images/research/Electrofluidics.jpg]]
{{textjustify{
Microfluidic and nanofluidic emulsification has been explored extensively in chemical engineering and biotechnology for using the emulsion droplets as microreactor, cell encapsulates, microarrays etc. [1] There is an increasing demand on the ability of tailoring the droplet size, leading to either uniform or serial sizes. Flow-focusing device is an ideal platform to produce both monodisperse and polydisperse droplets in micro-scale and nano-scale [2], but it needs a quite long respond time to change the droplets size by varying flow rates [3], which is not suitable for rapid control in droplet formation. Embedding electrical field inside the microfluidic channels provides additional capabilities to instantly control the droplets [4], and further decrease the size towards nano-scale without expensive cost.}}}
{{textjustify{
Here, we use AC electrical field of various waveforms to perform the dynamic control on the drop formation in a flow-focusing device. The size of droplets which were generated under triangle waveform inversely changed with applied voltage. Monodisperse droplets segments were produced using the rectangle waveform, and then separated by label regimes. The droplet size in the monodisperse segments can be adjusted by the magnitude of voltage. We also found high frequency AC can be used to control the coalescence of droplets. Our technique renders high flexibility in the engineering of droplet series, and may be readily incorporated in other nano–technologies as particle synthesis, DNA/protein analysis and sorting, etc.}}}
1. Whitesides, G.M., The origins and the future of microfluidics. Nature, 2006. 442(7101): p.368-373.
2. Anna, S.L., N. Bontoux, and H.A. Stone, Formation of dispersions using "flow focusing" in microchannels. Applied Physics Letters, 2003. 82(3): p. 364-366.
3. Collins, J. and A.P. Lee, Control of serial microfluidic droplet size gradient by step-wise ramping of flow rates. Microfluidics and Nanofluidics, 2007. 3(1): p. 19-25.
4. Link, D.R., et al., Electric control of droplets in microfluidic devices. Angewandte Chemie-International Edition, 2006. 45(16): p. 2556-2560
!Eletrospray of Wax
[img[Electrospray|images/research/Electrospray.jpg]][img[Wax Rods|Wax_Rods.JPG]]
{{textjustify{
Monodisperse wax emulsions were prepared by electrospraying of melt wax. The size of the emulsions was tailored by varying experimental parameters of the electrospray, such as the flow rate of the discontinuous phase, its electric conductivity, and the applied voltage. The monodispersity of the emulsions was greatly influenced by the surface tension and density of the collection liquid. We also demonstrated the fabrication of uniform wax microdisks using the phase transition of wax molecules inside these emulsions.}}}
!Nucleation Rate Measurement of Colloidal Crystallization Using Microfluidic Emulsion Droplets
[img[Nucleation|images/research/Nucleation.jpg]]
{{textjustify{
An emulsion crystallization method has been demonstrated to measure the nucleation rate of a thermoresponsive colloidal poly-N-isopropylacrylamide (PNIPAM) system. The colloidal PNIPAM suspension was injected into a microfluidic flow-focusing device to generate monodispersed droplets in oil. The temperature was controlled to fine tune the volume fraction of the PNIPAM particles, and the microfluidic flow rate was varied to change the droplet sizes, thus altering the nucleation volume. Using independent droplets, we can isolate the nucleation events to eliminate the interactions among crystallites that existed in bulk or large droplet systems. Therefore, we were able to carry out accurate nucleation rate measurements of colloidal crystals. This emulsion crystallization method is promising for bridging the gap among theories, simulations, and experiments for nucleation kinetics studies.}}}
!Numerical Simulation on the Modes of Droplet Formation in Flow Focusing Microfluidics Device
[img[Simulation|images/research/Simulation.JPG]]
{{textjustify{
Droplet generation in hydrodynamic flow-focusing microfluidics device are numerically studied by solving the time-dependent Navier-Stokes equations of two-phase flow using volume-of fluid (VOF) method and level set method. We present the results regarding the production mode of single, double and multiple droplet sizes. The numerical results are in consistent with the experiments, and different factors, such as Reynolds number and Webber number, influencing the dynamics of droplets breakup were also studied.}}}
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if (tiddlerElem&&opt.chkSinglePageAutoScroll) {
// scroll to top of page or top of tiddler
var isTopTiddler=(tiddlerElem.previousSibling==null);
var yPos=isTopTiddler?0:ensureVisible(tiddlerElem);
// if animating, defer scroll until after animation completes
var delay=opt.chkAnimate?config.animDuration+10:0;
setTimeout("window.scrollTo(0,"+yPos+")",delay);
}
}
if (Story.prototype.SPM_coreDisplayTiddlers==undefined)
Story.prototype.SPM_coreDisplayTiddlers=Story.prototype.displayTiddlers;
Story.prototype.displayTiddlers = function() {
// suspend single/top/bottom modes when showing multiple tiddlers
var opt=config.options;
var saveSPM=opt.chkSinglePageMode; opt.chkSinglePageMode=true;
var saveTPM=opt.chkTopOfPageMode; opt.chkTopOfPageMode=false;
var saveBPM=opt.chkBottomOfPageMode; opt.chkBottomOfPageMode=false;
this.SPM_coreDisplayTiddlers.apply(this,arguments);
opt.chkBottomOfPageMode=saveBPM;
opt.chkTopOfPageMode=saveTPM;
opt.chkSinglePageMode=saveSPM;
}
//}}}
!dedicated to the research of Colloids, Complex fluids and Crystallization.
Cheng Group in [[ChE|http://che.tamu.edu]]@[[TAMU|http://www.tamu.edu]]
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background: #ccc;
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color: #fff;
background: #948979;
border: solid 1px #948979;
padding-bottom:1px;
}
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color: #999;
background: #eee;
border: solid 1px #ccc;
padding-bottom:1px;
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#sidebarTabs .tabUnselected { border-bottom: none;padding-bottom:3px;}
#sidebarTabs .tabSelected{padding-bottom:3px;}
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border: 2px solid [[ColorPalette::TertiaryDark]];
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width: 98%;
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background-color: #FFF;
color: #999999;
border: 1px solid #CCC; margin-right:3px;
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color: #666;
border: 1px solid #DF9153;padding:2px;
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/*}}}*/
Our group is dedicated to the research of colloids, complex fluids, crystallization, and other soft condensed matter topics.
|>|>|>|>| Please click the icons below to see our [[research highlights|Welcome]] |h
|<html><A HREF="javascript:story.displayTiddler(null,'Research - Nucleation');" ><IMG SRC="images/research/Nucleation.jpg" ALT="Nucleation"></A></html>|[img[NIPAM Crystal|images/research/nipam_crystal.jpg]]|[img[NIPAM Gel|images/research/NIPAM_Gel.jpg]]|<html><A HREF="javascript:story.displayTiddler(null,'Research - Electrospray');" ><IMG SRC="images/research/Electrospray.jpg" ALT="Electrospray"></A></html>|<html><A HREF="javascript:story.displayTiddler(null,'Research - Electrospray');" ><IMG SRC="images/research/Wax_Rods.JPG" ALT="Wax Rods"></A></html>|
| [[Nucleation|Research - Nucleation]] | NIPAM Crystal | NIPAM Gel | [[Electrospray|Research - Electrospray]] | [[Wax Rods|Research - Electrospray]] |
|<html><A HREF="javascript:story.displayTiddler(null,'Research - Cell Encapsulation');" ><IMG SRC="images/research/cell_encapsulation.JPG" ALT="Cell Encapsulation"></A></html>|<html><A HREF="javascript:story.displayTiddler(null,'Research - Simulation');" ><IMG SRC="images/research/Simulation.JPG" ALT="Simulation"></A></html>|<html><A HREF="javascript:story.displayTiddler(null,'Research - Electro-Microfluidics');" ><IMG SRC="images/research/Electrofluidics.jpg" ALT="ElectroMicrofluidics"></A></html>|<html><A HREF="javascript:story.displayTiddler(null,'Research - BZ Reactions');" ><IMG SRC="images/research/BZ-diagram.JPG" ALT="BZ Reactions"></A></html>|[img[Laser Tweezer|images/research/Laser_Tweezer.jpg]]|
| [[Cell Encapsulation|Research - Cell Encapsulation]] | [[Simulation|Research - Simulation]] | [[Electro-Microfluidics|Research - Electro-Microfluidics]] | [[BZ Reactions|Research - BZ Reactions]] | Laser Tweezer |
! News
* May 2009, Congratulations to Srinivasa R. Pullela, the first PhD from Cheng's group!
* April 2009, Andres's paper is published at Journal of Colloid and Interface Science, congratulations!
* Febrary 2009, Srinivas's paper are published at Phys. Chem. Chem. Phys. and Journal of Polymer Science Part B, congratulations!
* Sep 2008, Guanqun Wang joins our group, welcome!
[[TiddlyWiki|http://www.tiddlywiki.com]] © Osmosoft
//{{{
//This ensures that the footer sticks to the bottom of the screen when there are no tiddlers open. If that is not desirable, it can be deleted.
function setFooter() {
if (document.getElementById && document.getElementById("contentFooter") ) {
var windowHeight=findWindowHeight();
if (windowHeight>0) {
var contentHeight= document.getElementById('mainMenu').offsetHeight + document.getElementById("header").offsetHeight + document.getElementById("contentFooter").offsetHeight;
var menu= document.getElementById('mainMenu');
if (windowHeight-(contentHeight)>=0) {
menu.style.position='relative';
menu.style.marginBottom=(windowHeight-(contentHeight))+'px';
}
else {
menu.style.position='';
menu.style.marginBottom='';
}
}
}
}
window.onresize = function() {
setFooter();
}
Story.prototype.refreshTiddler_footerhack=Story.prototype.refreshTiddler;
Story.prototype.refreshTiddler = function (title,template,force)
{
var theTiddler = Story.prototype.refreshTiddler_footerhack.apply(this,arguments);
setFooter();
return theTiddler;}
//}}}