KOREA UNIVERSITY Department of Chemical and Biological Engineering

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Research Area

NT (Nanotechnology)

1. Frontier Interfaces Group Laboratory
Nano-structured Organic Materials Research Laboratory

Research interests of Ahn Group include nano-to-macro scale molecular and supramolecular assemblies, surface engineering, and nanobiotechnology.
Toward fundamental knowledge, we investigate molecular-level interaction of chemical and biological materials. Both nanoscale experiments and dynamic simulations are valuable tools of our investigation. The role of interfacial water molecules in chemo-bio interactions is one of the key issues in our laboratory.
In applied regime, we develop rapid on-site detection devices for chemicals of environmental and safety issues, and ultra-sensitive label-free diagnostic sensors for DNAs, proteins, and cells. Our devotion aims at creation of essential technologies for the construction of internet-of-sensors. A recent example is to enable OLED materials to function biological recognition, for the first time.
Our group’s scientific contributions have been published in high-profile journals including Science, J. Am. Chem. Soc., Adv. Mater., Acc. Chem. Res., Nat. Commun., and others, as well as in international intellectual properties.

Our Research area is as follows:
  • Interfacial Engineering
  • Self- & Kinetic-Assembled Architectures
  • Optoelectronic Conjugated Supramolecules for Nanosensing
  • Biorecognitive OLED Materials
  • Inkjet-Printing Technology for Single-Object Assay
  • Engineering for Translational Nanomedicine
  • Antifreeze DNA-Based Nanostructures
  • Nanoscale Dynamics Simulations


Homepage : http://ahngroup.korea.ac.kr
  • For more information, contact : Prof. Dong June Ahn
  • Tel : 82-2-3290-3301
  • Email : ahn@korea.ac.kr
2. Surface Nano Fabrication Laboratory
Nano-structured Organic Materials Research Laboratory

The research aim of Surface Nano Fabrication Laboratory (SNFL) is to establish a practical fabrication technology for wirelessly operated wearable electronics via integration of wireless energy generator, energy storage device, and bio-environmental sensors on a single deformable substrate. For this, we conduct research on (1) developing high-efficiency, flexible solar cell as a wireless energy generating device and a wireless power receiving device using a coil antenna, (2) devising high-performance supercapacitors, (3) fabricating multi-functional sensors with visual display, and (4) integrating all the device elements on a single deformable polymer substrate which is skin-attachable.

Detailed research area is as follows :
  • Interfacial Engineering
  • Carbon material-based stretchable supercapacitor
  • Transient supercapacitor
  • Stretchable/wearable multi-functional sensor
  • Electrochromic device
  • Near-field power transmission device
  • Flexible solar cell
  • Nanopores


Homepage : http://surfnano.korea.ac.kr
3. Nano-structured Organic Materials Research Laboratory
Nano-structured Organic Materials Research Laboratory

The Nano-structured Organic Materials Research Laboratory, under the supervision of Professor Joona Bang, carries out research on various block copolymers and their applications. We design monomers, polymerize them using various methods of polymerization such as RAFT polymerization, ATRP, anionic polymerization, ROP, and ROMP. These polymers are then processed to be used in various fields including block copolymer nanolithography, organic nanoparticles synthesis, epoxy toughening, quantum dots and anti-fouling materials. In addition to lab work, our lab also performs computational simulations based on field theory and a particle-based model to predict the behavior of macromolecules.

Our Research area is summarized as follows:
  • Synthesis of various functionalized monomers
  • Living radical polymerization (RAFT polymerization, NMP, ATRP, ROMP, anionic polymerization)
  • Synthesis of architecturally diverse polymers (star, bottlebrush, single chain nanoparticles, etc.)
  • Directed self-assembly of block copolymers
  • Advanced block copolymer nanolithography using non-linear block copoymers
  • Block copolymer nanocomposites
  • Anti-adhesion surface by monolayer coating.
  • Photoluminescence quantum dots


Homepage : https://nanopolymer.korea.ac.kr:8456/index2.asp
  • For more information, contact : Prof. Joona Bang
  • Tel : 82-2-3290-3309
  • Email : joona@korea.ac.kr
4. Nano Materials & Functional Thin Film Laboratory
Nano Materials & Functional Thin Film Laboratory

Nano Materials & Functional Thin Film Lab under supervisor of Prof. Jinhan Cho has focused on the development of novel layer-by-layer (LbL) assembly approach as well as the fabrication of LbL-assembled thin film applications using various adsorption mechanism and surface chemistry. For this goal, all the graduate students in our research group are studying (1) the surface chemistry of polymers, (2) the synthesis and surface modification of metal (or metal oxide) nanoparticles and carbon-based materials (carbon nanotube and reduced graphene oxide), (3) the interface control through complementary interactions (electrostatic interaction, hydrogen-bonding, and covalent interactions), and (4) the device physics of thin film-based target applications. Up to date, our group have developed a variety of novel LbL-assembly approaches called as ligand exchange LbL, ligand addition LbL, amphiphilic LbL, small molecule-mediated LbL assembly. Recently, our group have developed the multifunctional colloids, the nonvolatile memory devices, the triboelectric devices, the supercapacitor, and the batteries that can exhibit the higher performance through our novel LbL assemblies.

What is LbL assembly ?

LbL assembly method offers diverse opportunities to prepare organic/organic and/or organic/inorganic nanocomposite films with tailored optical, magnetic, biological and electrical properties. An important advantage of this method is that it enables the preparation of films with controlled thickness, composition and functionality on substrates of different size and shape. Additionally, various inorganic nanoparticles as well as organic components can be inserted within LbL films through complementary interactions (i.e., electrostatic, hydrogen-bonding, or covalent interaction).



Research area of our group is as follows:
  • Synthesis of nanomaterials
  • Development of Novel LbL-assembly and nanocomposite multilayer films
  • Thin film based-functional Colloids
  • Nonvolatile memory devices
  • Triboelectric devices
  • Supercapacitor
  • Batteries


Homepage : http://uflab.korea.ac.kr
5. Laboratory of Functional Polymers
Laboratory of Functional Polymers

The research group of functional polymers, headed by Prof. Anzar Khan, is exploring the design, synthesis, and application aspects of smart polymeric(nano) materials. The following are some of the recent and active research projects being carried out in the laboratory of functional polymers.

  1. Harnessing enzyme sensitivity of the azobenzene motif to prepare activatable anticancer polymer-drug conjugates
  2. Proton transfer polymerization between thiol and epoxide groups as a new synthetic method to prepare reactive and multiply functionalized polymers under ambient conditions
  3. Sequential thiol-epoxy and esterification reactions as a means for post-polymerization double-modification of glycidyl polymers
  4. Controlling the pore chemistry of nanoporous polymeric membranes through molecular engineering concepts
  5. Synthesis of polymer nanoparticles of controllable shapes and chemistries
 
  • For more information, contact : Prof. Anzar Khan
  • Tel : 82-2-3290-4859
  • Email : anzar@korea.ac.kr