Author
Young-Min Kong
Bio: Young-Min Kong is an academic researcher from Seoul National University. The author has contributed to research in topics: Coating & Osseointegration. The author has an hindex of 13, co-authored 17 publications receiving 1465 citations.
Papers
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TL;DR: Preliminary in vivo tests of the MAO-treated specimens on rabbits showed a considerable improvement in their osseointegration capability as compared to the pure titanium implant.
658 citations
TL;DR: Fluor-hydroxyapatite (FHA) film was coated on a zirconia (ZrO(2)) substrate by a sol-gel method, suggesting the possibility of a functional gradient coating of HA and FHA.
131 citations
TL;DR: A thin hydroxyapatite (HA) layer was coated on a microarc oxidized titanium (MAO-Ti) substrate by means of the sol-gel method, and the proliferation and alkaline phosphatase (ALP) activity of the osteoblast-like cells on theMAO/HA sol- gel-treated Ti were significantly higher than those on the MAO- Ti without the HA sol- Gel treatment.
Abstract: A thin hydroxyapatite (HA) layer was coated on a microarc oxidized titanium (MAO-Ti) substrate by means of the sol-gel method. The microarc oxidation (anodizing) enhanced the biocompatibility of the Ti, and the bioactivity was improved further by the sol-gel HA coating on the anodized Ti. The HA sol was aged fully to obtain a stable and phase-pure HA, and the sol concentration was varied to alter the coating thickness. Through the sol-gel HA coating, the Ca and P concentrations in the coating layer increased significantly. However, the porous morphology and roughness of the MAO-Ti was altered very little by the sol-gel treatment. The proliferation and alkaline phosphatase (ALP) activity of the osteoblast-like cells on the MAO/HA sol-gel-treated Ti were significantly higher than those on the MAO-Ti without the HA sol-gel treatment.
127 citations
TL;DR: In this paper, tetragonal-zirconia-polycrystalline (TZP) powder coated with Al2O3 was used to improve the mechanical properties of a bioceramic material.
Abstract: The mechanical properties of hydroxyapatite (HAp) bioceramic material were improved significantly by adding tetragonal-zirconia-polycrystalline (TZP) powder coated with Al2O3 The coating was done by dispersing the TZP powder in a boehmite suspension and adjusting the pH to cause heterocoagulation The coating effectively reduced the deleterious reaction between the HAp and the TZP that tended to form tricalcium phosphate (TCP) and fully stabilized cubic zirconia When 15 vol% zirconia and 30 vol% alumina were added to the HAp by the coating method, the strength and the fracture toughness of the composite were 300 MPa and 3 MPa·m1/2, respectively, which are about 3 times higher than those of pure HAp
125 citations
TL;DR: From the mechanical and biological evaluations of the HA-added ZA nano-composites, 30HA (30 vol% HA + 70 vol% ZA) was found to be the optimal composition for load-bearing biological applications.
122 citations
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TL;DR: In this paper, the influence of alloy chemistry, thermomechanical processing and surface condition on these properties is discussed and various surface modification techniques to achieve superior biocompatibility, higher wear and corrosion resistance.
4,113 citations
TL;DR: A review of the properties, biological performance, challenges and future directions of magnesium-based biomaterials can be found in this paper, where the authors explore the properties and challenges of magnesium biomaterial.
3,757 citations
TL;DR: Some indications exist that surface topography influences bone response at the nanometre level and the majority of published papers present an inadequate surface characterization.
Abstract: European Association for Osseointegration; 19-22 February 2009, Pfaffikon, Switzerland; 2nd Consensus Conference
1,187 citations
TL;DR: Preliminary in vivo tests of the MAO-treated specimens on rabbits showed a considerable improvement in their osseointegration capability as compared to the pure titanium implant.
658 citations
TL;DR: The activities of nanoparticles as an antimicrobial means, their mode of action, nanoparticle effect on drug-resistant bacteria, and the risks attendant on their use as antibacterial agents are discussed.
Abstract: Despite numerous existing potent antibiotics and other antimicrobial means, bacterial infections are still a major cause of morbidity and mortality. Moreover, the need to develop additional bactericidal means has significantly increased due to the growing concern regarding multidrug-resistant bacterial strains and biofilm associated infections. Consequently, attention has been especially devoted to new and emerging nanoparticle-based materials in the field of antimicrobial chemotherapy. The present review discusses the activities of nanoparticles as an antimicrobial means, their mode of action, nanoparticle effect on drug-resistant bacteria, and the risks attendant on their use as antibacterial agents. Factors contributing to nanoparticle performance in the clinical setting, their unique properties, and mechanism of action as antibacterial agents are discussed in detail.
613 citations