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타이타늄 표면에 항생제를 함유한 생분해성 고분자 물질의 코팅에 따른 약물방출 및 항균효과

Other Titles
 The Drug Release and Antibacterial Effects on Titanium Surface According to Biodegradable Polymer Coating with Antibiotics 
 김우현  ;  이상배  ;  이용근  ;  김경남  ;  김광만 
 Journal of the Korean Research Society for Dental Materials (대한치과기재학회지), Vol.37(1) : 53-60, 2010 
Journal Title
Journal of the Korean Research Society for Dental Materials(대한치과기재학회지)
Issue Date
Anodic oxidation ; Drug delivery system ; Biodegradable polymer ; Antibiotics
Titanium and titanium alloys are the most common materials used for dental and biomedical implants, owing to their biocompatibility and favorable mechanical properties. However infection of the region surrounding a implant by pathogenic microorganisms is a significant factor in implant failure. Currently, a number of studies to create antibacterial surfaces of dental implants and biomaterials are being reported and commercially applied. Prevention and control of microbial colonization of implant surfaces is therefore of considerable interest to the biomedical community. One of the solutions, various biodegradable polymeric drug delivery devices have been developed for the sustained release of a variety of drugs. Among them, fi lms as implantable drug delivery systems have gained growing interest in various applications. The purpose of this study was to confirm the release of antibiotics and antibiotic effects of titanium surface which coated with biodegradable polymer and different concentrations of tetracycline. Anodized titanium specimen (diameter 8 mm, height 2 mm) were coated with poly (lactide) acid solution (1%) containing different concentrations of tetracycline (0.0%: Group I, 0.1%:Group II, 0.5%:Group III, 1.0%: Group IV). The coated specimen’s surface were observed by scanning electron microscope. For the analysis of drug release, the specimens were inserted in distilled water and then the solution was measured for 3 hours, 6 hours , 12 hours , 1 days, 3 days, 7 days, 14 days u sing the ultraviolet spectrometer. Antimicrobial activi ty against Staphylococcus aureous was tested wi th the agar di ffusion method. Scanning electron microscope image showed that polymer coating layers fulfi lled the ti tanium surface. The most of tetracycline released within 6 hours and then continued until 2 weeks. Regarding the antibacterial effect for Staphylococcus aureous, the specimens showed inhibitions of the strain with larger zones for the higher tetracycline concentration
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2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyoung Nam(김경남)
Kim, Kwang Mahn(김광만) ORCID logo https://orcid.org/0000-0002-5235-0294
Kim, Woo Hyun(김우현)
Lee, Yong Keun(이용근)
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