연구

  • 연구실소개

연구실소개

미세공정연구실

연구실 소개

우리 연구실에서 진행되고 있는 연구는 화학공학의 개념을 바탕으로 반응, 혼합 및 분리 등의 단위 화학공정을 소형화(miniaturization)하고, 여러 공정들을 하나의 칩으로 집적화(integration)하기 위한 기초 연구와 이를 응용한 미세유체 소자 개발에 주안점이 있습니다. 본 연구실은 화공 및 고분자 산업에 있어서 필수적인 유변학(rheology), 고분자 물리 및 이동현상 등에 강점이 있으며, 이들 분야와 미세유체공학(microfluidics) 기술을 접목하는 연구에 집중하고 있습니다. 본 연구실의 연구 결과는 전통 화공산업 뿐만 아니라 최신 화학공학에서 중요한 나노과학, 생명공학 및 환경관련 기술 발전에 크게 기여할 것으로 기대하고 있습니다. 이러한 연구개발 활동을 통해 우리 실험실은 향후 화공 산업의 발전 및 나노 기술, 생명 공학, 물리 및 수학 등 다양한 분야를 포괄하는 융합 기술을 선도할 연구진을 양성하고 있습니다.

미세공정 과정을 보여주는 그림
지도교수 소개
연구분야
  • 유변학; 고분자 물리; 미세유체채널에서 이동현상 연구
  • 점탄성 유동하에서 입자, 세포 및 생체 고분자의 동력학 연구: 입자 집속 및 분리용 칩개발
  • 미세유체공학 기술을 활용한 기능성 입자 제조 연구
  • 모델링 및 수치모사 연구: 유한 요소법 및 브라운 동력학 (Brownian dynamics) 기반 수치모사 연구
연구성과

국제 전문 학술지

  • <28> J.Y. Kim, S.W. Ahn, S.S. Lee, and J.M. Kim, "Lateral migration and focusing of colloidal particles and DNA molecules under viscoelastic flow", Lab Chip, 12, 2807-2814(2012). Featured in the Lab Chip front cover and also highlighted in the Lab Chip blog (KBS news, 연합 뉴스 등 언론 매체에 관련 연구 내용 소개).
  • <27> S. Yang, S.S. Lee, S.W. Ahn, K. Kang, W. Shim, G. Lee, K. Hyun, and J.M. Kim, "Deformability-selective particle entrainment and separation in a rectangular microchannel using medium viscoelasticity", Soft Matter, 8, 5011-5019(2012).
  • <26> A.R. Kang, S.W. Ahn, S.J. Lee, B. Lee, S.S. Lee and J.M. Kim, “Medium viscoelastic effect on particle segregation in concentrated suspensions under rectangular microchannel flows”, Korea-Australia Rheology Journal, 23, p247-254(2011).
  • <25> S. Yang, S.W. Ahn, A.R. Kang, D. Lee, S.S. Lee, J.M. Kim, K.H. Ahn and S.J. Lee, “Effect of local kinematic history on the dynamic self-assembly of droplets in microexpansion channels”, Korea-Australia Rheology Journal, 23, p119-126(2011).
  • <24> J.S. Lee, and J.M. Kim, “Effect of stiffness on tumbling dynamics of short worm-like polymers under mixed flows”, Macromolecular Research, 19, 273-279(2011).
  • <23> S. Yang, J.Y. Kim, S.J. Lee, S.S. Lee, and J.M. Kim, “Sheathless elasto-inertial particle focusing and continuous separation in a straight rectangular microchannel”, Lab Chip, 11, 266-273(2011).
  • <22> J.S. Lee, and J.M. Kim, “Effect of aspect ratio and fluid elasticity on chain orientation in isothermal film casting process ”, KJChE, 27, 409-415(2010).
  • <21> C. Chung, D. Choi, J.M. Kim, K.H. Ahn, and S.J. Lee, “Numerical and experimental studies on the viscous folding in diverging microchannels”, Microfluidics and Nanofluidics, 8, 767-776(2010).
  • <20>. J.S. Lee, and J.M. Kim, “Tumbling dynamics of rod-like and semi-flexible polymers in simple shear and mixed flows”, Macromolecular Research, 17, 807-812(2009).
  • <19>. C. Chung, J.M. Kim, M.A. Hulsen, K.H. Ahn, and S.J. Lee,“Effect of viscoelasticity on drop dynamics in 5:1:5 contraction/expansion microchannel flow”, Chem. Eng. Sci., 64, 515-4524 (2009).
  • <18>. Seung Won Choi, Dong Myeong Shin, Joo Sung Lee, Ju Min Kim, Hyun Wook Jung, and Jae Chun Hyun, “Transient responses of two-dimensional film casting processes to sinusoidal disturbances ”, KJChE, 26, 26-31(2009).
  • <17>. Changkwon Chung, Ju Min Kim, Kyung Hyun Ahn, and Seung Jong Lee, “Numerical study on the effect of viscoelasticity on pressure drop and film thickness for a droplet flow in a confined microchannel”, Korea-Australia Rheology Journal, 21, 59-69(2009).
  • <16>. Ju Min Kim, Kyung Hyun Ahn, and Seung Jong Lee, “Effect of viscoelasticity on two-dimensional laminar vortex shedding in flow past a rotating cylinder”, Korea-Australia Rheology Journal, 21, 27-37(2009).
  • <15>. Dhananjay Dendukuri, Priyadarshi Panda, Ramin Haghgooie, Ju Min Kim, T. Alan Hatton, and Patrick S. Doyle, “Modeling of oxygen-inhibited free radical photopolymerization in a PDMS microfluidic device”, Macromolecules, 41, 8547-8556(2008).
  • <14>. Changkwon Chung, Martien A. Hulsen, Ju Min Kim, Kyung Hyun Ahn, and Seung Jong Lee, “Numerical study on the effect of viscoelasticity on drop deformation in simple shear and 5:1:5 planar contraction/expansion microchannel”, J. Non-Newtonian Fluid Mech., 155, 80(2008).
  • <13>. Ju Min Kim, Song Geun Lee, and Chongyoup Kim, “Numerical simulation of particle migration in suspension flows: frame-invariant of curvature-induced migration”, J. Non-Newtonian Fluid Mech., 150, 162(2008).
  • <12>. Ju Min Kim, and Patrick S. Doyle, “Brownian dynamics simulation of a DNA molecule colliding with a small cylindrical post”, Macromolecules, 20, 9151(2007).
  • <11>. Sunjin Song, Ju Min Kim, Kyung Hyun Ahn, and Seung Jong Lee, “Orientation and deformation of FENE dumbbells in confined microchannel and contraction flow field”, Korea-Australia Rheology Journal, 19, 147(2007).
  • <10>. Dong Myeong Shin, Joo Sung Lee, Ju Min Kim, Hyun Wook Jung and Jae Chun Hyun, “Transient and Steady-state Solutions of 2-D Viscoelastic Nonisothermal Simulation Model of Film Casting Process Via Finite Element Method”, J. Rheol., 51, 393(2007).
  • <9>. Ju Min Kim, and Patrick S. Doyle, “Design and numerical simulation of a DNA electrophoretic stretching device”, Lab Chip, 7, 213(2007).
  • <8>. Ju Min Kim, and Patrick S. Doyle, “A Brownian dynamics-finite element method for simulating DNA electrophoresis in non-homogeneous electric fields”, J. Chem. Phys., 33, 074906(2006).
  • <7>. Ju Min Kim, Changkwon Chung, Kyung Hyun Ahn, and Seung Jong Lee, “Time-Weissenberg number superposition in 4:1 planar contraction flow of a viscoelastic flow”, NIHON REOROJI GAKKAISHI, 33, 191-197 (2005).
  • <6>. Ju Min Kim, Joo Sung Lee, Dong Myeong Shin, Hyun Wook Jung, and Jae Chun Hyun, “Transient solutions of the dynamics of film casting processes using a 2-D viscoelastic model”, J. Non-Newtonian Fluid Mech., 132, 53-60(2005).
  • <5>. Ju Min Kim, Chongyoup Kim, Jeong Ho Kim, Changkwon Chung, Kyung Hyun Ahn, Seung Jong Lee, "High-resolution finite element simulation of 4:1 planar contraction flow of viscoelastic fluid", J. Non-Newtonian Fluid Mech., 129, 23-37(2005).
  • <4>. Ju Min Kim, Changkwon Chung, Chongyoup Kim, Kyung Hyun Ahn, and Seung Jong Lee, "Negative Wake Generation of Viscoelastic Flow past a Cylinder: Influence of Flow Situations", Rheologica Acta, 44, 600-613(2005).
  • <3>. Ju Min Kim, Chongyoup Kim, Kyung Hyun Ahn, and Seung Jong Lee, "An efficient iterative solver and high-resolution computations of Oldroyd-B fluid flow past a confined cylinder", J. Non-Newtonian Fluid Mech., 123, 161-173(2004).
  • <2>. Ju Min Kim, Chongyoup Kim, Changkwon Chung, Kyung Hyun Ahn, and Seung Jong Lee, “Vortex Behavior in the Inertial Flow of Viscoelastic Fluids past a Confined Cylinder”, Korea-Australia Rheo. J., 16, 117-128(2004).
  • <1>. Ju Min Kim, Kyung Hyun Ahn, Seong Jae Lee, and Seung Jong Lee, "Numerical Simulation of Free Surface Problems in Injection Mold Filling Process using Volume-of-Fluid Scheme", Polym. Eng. Sci., 41, 858-866(2001).

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