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1. Biomaterials* Organic-Inorganic composites : Developing bio-compatible materials using polymer-ceramic composites
* Surface treatment of implant materials : Surface modification methods to enhance the bio-activity of dental and orthopedic implants
* Porous structures with high strength : Strong porous structures with pore size controllability
* Bioabsorbable Mg implants : Material performance enhancement by modifying the bioabsorbability of metallic implants.
* The development of materials systems with bioactive factors such as drugs and other growth factors incorporated in them
* Applications : Can be used in most medical implants such as Bio-curtains for guided bone regeneration, Surface treatment methods for metallic implants, Porous scaffolds for bone substitutes, Robust ceramic bone replacements, etc.2. Analyzing the biomedical properties of various materials* In-vitro toxicity and biocompatibility analysis using cells
* In-vivo bio-medical and physical characterization of the biomaterials

. Patents* Porous bioceramics for bone scaffold and method for manufacturing the same���, U.S. Patent 10/723,401 (2003)
* Bioresorbable stent and method for manufacturing the same���, KOR 1020100129181 (2010)
[Total of 62 domestic and international patents]2. Papers* The electron beam deposition of titanium on PEEK and the resulting enhanced biological properties , Biomaterials, 31, 3465 (2010)
[Total of 301 journal papers]

1. Organic-Inorganic composite materials* Low temperature synthesis of biopolymer-silica zerogel composites for biocurtains
- Property enhancement : Excellent bio-activity and physical characteristics
- Drug and growth factor incorporations possible due to low process temperature
* Composite nano-textiles (electro-spinning) : Increase in bio-activity from larger surface area2. Surface treating implants* Coating by E-beam sputtering : Enhanced bioactivity and a more robust adhesion
* Micro-arc Oxidation (MAO) : Increase in roughness by forming TiO2 layers
* Anodic Titanium Oxide (ATO): Formation of nano-tubes, which allows a larger amount of drugs to be incorporated
* Hybrid composite coatings using the sol-gel method : Excellent bioactivity, easy drug incorporation3. Porous structures with exceptional strength* Fabrication of porous structures using extrusion and sponge coating
* Various porous structures are formed by implementing a freezing process3. Characterization of bio-medical properties* The bioactivity of the developed materials are tested in-vitro and in-vivo