Jump to the main content block
CME Logo
 
 

標題

✕
 
  1. Home
  2. Faculty
  3. Professor

Heng-Kwong Tsao, Professor

Heng-Kwong Tsao - Chair Professor  & Dean of College of Engineering
曹恆光 講座教授 兼工學院院長
 |             Ph.D. in Chemical Engineering, Cornell University, USA
Ext.: 34223
Office: Engineering Building 4, E3-221-1
Lab: Colloid and Interface Science Laboratory, E3-219
Email:  hktsao@cc.ncu.edu.tw , ncucmecisl@gmail.com
taso logo
 
Professor Heng-Kwong Tsao Photo

Research Interests

Colloid and Interface Science, Polymer Physics, Wetting Phenomena, Transport Phenomena, Molecular Simulation.

Our laboratory engages in fundamental and applied research in areas related to colloid and interface science, polymer physics, and biophysics. Our research scope encompasses the investigation of flow, diffusion, or kinetic characteristics when systems are in non-equilibrium states, as well as the study of thermodynamic properties when systems reach equilibrium.

Currently, the colloidal systems we study mainly involve electrolyte solutions containing macroions. Macroions are nanoparticles carrying multiple charges, including general nanoparticles, long-chain polyelectrolytes, and micelles formed by surfactants. Their size is significantly larger than solvent molecules but smaller than microns (μm). Understanding the physical properties of these systems serves as a reference and basis for industrial applications (e.g., separation operations). We also study the wetting behavior of droplets on solid surfaces, including wetting on superhydrophobic surfaces and the investigation of its principles. These research results can be applied as a basis for improving post-CMP (Chemical Mechanical Planarization) cleaning operations in semiconductor manufacturing processes.

Our research methodology places equal emphasis on "Theoretical Analysis" and "Experimental Observation." To understand the fundamental mechanisms of phenomena and provide predictive capabilities, we base our work on statistical mechanics. We start by understanding the "microscopic" interaction characteristics between particles in the system and further derive and observe the "macroscopic" properties exhibited by the system. Utilizing the rapid computational capabilities of computers, we employ molecular simulation methods to conduct "computer experiments" to determine the macroscopic properties of the system. At the same time, we grasp the spirit of the theoretical models constructed and design simple and cost-effective experiments to verify our theories or serve as a basis for model modification.

Publications

  1. Kang-Ching Chu, Heng-Kwong Tsao and Yu-Jane Sheng “Penetration dynamics through nanometer-scale hydrophilic capillaries: beyond Washburn’s equation and extended menisci” ‎J. Colloid Interface Sci, 2019, 538, 340-348. DOI: 10.1016/j.jcis.2018.12.005.
  2. Yu-Hsuan Weng, Heng-Kwong Tsao, Yu-Jane Sheng “Patterning Dewetting and Self-healing of Polymer Nanofilms on a Brush Layer,” J. Phys. Chem. C, 2019, 123(6), pp 3560-3567. DOI: 10.1021/acs.jpcc.8b10889.
  3. Ssu-Wei Hu, Chun-Yen Huang, Heng-Kwong Tsao, and Yu-Jane Sheng “Hybrid lipid/diblock copolymer membrane: from homogeneity, raft, to phase separation,” Phys. Rev. E, 2019, 99, 012403. DOI: 10.1103/PhysRevE.99.012403.
  4. Vickramjeet Singh, Thao Phuong Nguyen, Yu-Jane Sheng, Heng-Kwong Tsao “Stress-Driven Separation of Surfactant Stabilized Emulsions and Gel-Emulsions by Superhydrophobic/Superoleophilic Meshes,” J. Phys. Chem. C,2018, 122(43), 24750–24759. DOI: 10.1021/acs.jpcc.8b07449.
  5. Yan-Ling Yang, Yu-Jane Sheng, Heng-Kwong Tsao “Branching Pattern Effect and Co-assembly with Lipids of Amphiphilic Janus Dendrimersomes”, Phys. Chem. Chem. Phys., 2018, 20, 27305-27313. DOI: 10.1039/C8CP05268A.
  6. Yan-Ling Yang,  Min-Yi Chen, Heng-Kwong Tsao and Yu-Jane Sheng, “Dynamics of bridge–loop transformation in a membrane with mixed monolayer/bilayer structures,” Phys. Chem. Chem. Phys., 2018, 20, 6582-6590. DOI: 10.1039/C7CP08107C.
  7. Vickramjeet Singh,  Chun-Jen Huang,  Yu-Jane Sheng  and Heng-Kwong Tsao, “Smart zwitterionic sulfobetaine silane surfaces with switchable wettability for aqueous/nonaqueous drops,” J. Mater. Chem. A, 2018, 6, 2279-2288. DOI: 10.1039/C7TA09475B.
  8. Yen-Fu Chen, Hsuan-Yi Chen, Yu-Jane Sheng and Heng-Kwong Tsao “Directed Drift and Fluid Pumping of Nanoswimmers by Periodic Rectification-Diffusion,” J. Chem. Phys., 2017, 146, 014902. DOI: 10.1063/1.4973228.
  9. Chih-Yu Teng, Yu-Jane Sheng, and Heng-Kwong Tsao “Particle size-induced transition between surface segregation and bulk aggregation in a thin film of athermal polymer-nanoparticle blends,” J. Chem. Phys., 2017, 146, 014904. DOI: 10.1063/1.4973608.
  10. Cyuan-Jhang Wu, Cheng-Chung Chang, Yu-Jane Sheng, and Heng-Kwong Tsao “Extraordinarily Rapid Rise of Tiny Bubbles Sliding beneath Superhydrophobic Surfaces,” Langmuir, 2017, 33 (5), 1326–1331. DOI: 10.1021/acs.langmuir.6b04645.
  11. Cyuan-Jhang Wu, Chun-Jen Huang, Shaoyi Jiang, Yu-Jane Sheng, and Heng-Kwong Tsao, “Superhydrophilicity and Spontaneous Spreading on Zwitterionic Surfaces: Carboxybetaine and Sulfobetaine,” RSC Advances, 2015, 6, 24827-24834. DOI: 10.1039/C6RA01825D.
  12. YE Liang, YJ Sheng, HK Tsao "Drops on Hydrophilic Conical Fibers: Gravity Effect and Coexistent States," Langmuir, 2015, 31 (5), pp 1704–1710. DOI: 10.1021/la504552d.
  13. S Xiao, HY Chen, YJ Sheng, HK Tsao "Induced polar order in sedimentation equilibrium of rod-like nanoswimmers," Soft matter, 2015, 11, pp 2416-2422. DOI: 10.1039/C4SM02701A.
  14. YF Li, YJ Sheng, HK Tsao "Solute Concentration-Dependent Contact Angle Hysteresis and Evaporation Stains," Langmuir, 2014 30(26), pp 7716-7723. DOI: 10.1021/la501438k.
  15. Z Wang, HY Chen, YJ Sheng, HK Tsao "Diffusion, sedimentation equilibrium, and harmonic trapping of run-and-tumble nanoswimmers," Soft matter, 2014, 10, pp 3209-3217. DOI: 10.1039/C3SM53163E.
  16. HY Chang, YJ Sheng, HK Tsao "Structural and mechanical characteristics of polymersomes," Soft matter, 2014, 10, pp 6373-6381. DOI: 10.1039/C4SM01092B.
  17. HY Chang, YL Lin, YJ Sheng, HK Tsao "Structural Characteristics and Fusion Pathways of Onion-Like Multilayered Polymersome Formed by Amphiphilic Comb-Like Graft Copolymers," Macromolecules, 2013, 46(14), pp 5644-5656. DOI: 10.1021/ma400667n.
  18. SW Hu, YJ Sheng, HK Tsao "Depletion-induced size fractionation of nanorod dispersions," Soft Matter, 2013, 9, pp 7261-7266. DOI: 10.1039/C3SM50825K.
  19. YL Lin, HY Chang, YJ Sheng, HK Tsao "Photoresponsive Polymersomes Formed by Amphiphilic Linear–Dendritic Block Copolymers: Generation-Dependent Aggregation Behavior," Macromolecules, 2012, 45 (17), pp 7143–7156. DOI: 10.1021/ma301251s.
  20. SJ Hong, YF Li, MJ Hsiao, YJ Sheng, HK Tsao "Anomalous wetting on a superhydrophobic graphite surface," Applied Physics Letters 100, 121601 ; DOI: 10.1063/1.3697831.
  21. SW Hu, YJ Sheng, HK Tsao "Self-Assembly of Organophilic Nanoparticles in a Polymer Matrix: Depletion Interactions," J. Phys. Chem. C, 2012, 116 (2), pp 1789–1797. DOI: 10.1021/jp2104787.
Click Num: