조영진 교수
Youngjin Cho
서울대학교 · 의학
연구실 소개
조영진 교수의 연구실은 생체적합성과 환경친화성을 고려한 표면활성 블록공중합체 및 생체분자 인식 기반의 생물센서 기술을 핵심으로 연구를 진행하고 있습니다. 특히, 플루오르화물이 포함되지 않은 비이온성 표면활성계의 개발을 통해 단백질 부착과 생체오염을 효과적으로 억제하는 고성능 코atings 기술을 확립하고 있으며, 이는 의료기기 및 생체재료 응용에 기여하고자 합니다. 또한, DNA 손상 및 유전자 변형 메커니즘을 NMR을 활용해 정밀하게 분석함으로써 유전자 기반 진단 및 독성 평가 기반의 바이오센서 기술도 함께 발전시키고 있습니다.
연구 현황
연구 성과 추이
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
주요 논문
15Fluorine-free, amphiphilic, nonionic surface active block copolymers (SABCs) were synthesized through chemical modification of a polystyrene-block-poly(ethylene-ran-butylene)-block-polyisoprene triblock copolymer precursor with selected amphiphilic nonionic Brij and other surfactants. Amphiphilicity was imparted by a hydrophobic aliphatic group combined with a hydrophilic poly(ethylene glycol) (PEG) group-containing moiety. The surfaces were characterized by dynamic water contact angle, atomic f
A monoclonal antibody (Mab) against ochratoxin A (OTA) was produced from the hybridoma cell line C7G25, which was established by the fusion of Sp2/0-Ag14 myeloma cells with spleen cells isolated from a BALB/c mouse immunized with the OTA-bovine serum albumin conjugate. This Mab belongs to the IgG(2a) heavy-chain subclass with a kappa-type light chain. The level of 50% inhibition concentration was 1.20 ng/mL in a competitive direct enzyme-linked immunosorbent assay (cdELISA), and the detection li
The crotonaldehyde- and acetaldehyde-derived R- and S-alpha-CH3-gamma-OH-1,N2-propanodeoxyguanosine adducts were monitored in single-stranded and duplex oligodeoxynucleotides using NMR spectroscopy. In both instances, the cis and trans diastereomers of the alpha-CH3 and gamma-OH groups underwent slow exchange, with the trans diastereomers being favored. In single-stranded oligodeoxynucleotides, the aldehyde intermediates were not detected spectroscopically, but their presence was revealed throug
Y-75 was shown to be a safe and potentially effective natural alternative for enhancing immune function.
Coatings derived from surface active block copolymers (SABCs) having a combination of hydrophobic aliphatic (linear hydrocarbon or propylene oxide-derived groups) and hydrophilic poly(ethlyene glycol) (PEG) side chains have been developed. The coatings demonstrate superior performance against protein adsorption as well as resistance to biofouling, providing an alternative to coatings containing fluorinated side chains as the hydrophobe, thus reducing the potential environmental impact. The surfa
The PL lines were shortest among the three mitral isthmus lines, but closest to LCA. Myocardium was thickest at the AL line, and SNAs were frequently found on the anterior lines. Multi-detector computed tomography provided detailed information, and further studies are required to clarify the clinical impact of these findings.
The interstrand N2,N2-dG DNA cross-linking chemistry of the acrolein-derived gamma-OH-1,N2-propanodeoxyguanosine (gamma-OH-PdG) adduct in the 5'-CpG-3' sequence was monitored within a dodecamer duplex by NMR spectroscopy, in situ, using a series of site-specific 13C- and 15N-edited experiments. At equilibrium 40% of the DNA was cross-linked, with the carbinolamine form of the cross-link predominating. The cross-link existed in equilibrium with the non-crosslinked N2-(3-oxo-propyl)-dG aldehyde an
Down syndrome candidate region 1 (DSCR1), an endogenous inhibitor of calcineurin, inhibits the expression of genes involved in the inflammatory response. To elucidate the molecular basis of these anti-inflammatory effects, we analyzed the role of DSCR1 in the regulation of NF-kappaB transactivation using glioblastoma cells stably transfected with DSCR1.4 or its truncation mutants (DSCR1.4-(1-133) and DSCR1.4-(134-197)). Overexpression of DSCR1.4 significantly attenuated the induction of cyclooxy
The current study demonstrated that the PLGA/1α,25-(OH)2D3 solution coating resulted in submicron-sized particles, which may stimulate bone formation adjacent to the surface of implants inserted into bone.
Dynamic supply-voltage scaling (DVS) can reduce the energy consumption of microprocessors, but most DVS schemes only scale the clock frequency of the microprocessor and ignore the memory system. In this paper, we show how more energy can be saved by changing the clock frequency of the memory as well as that of the microprocessor in a coordinated fashion. The contributions of this paper include: 1) consideration of both the energy and access time of the memory; 2) derivation of a mathematical for
Most existing dynamic voltage scaling (DVS) schemes for multiple tasks assume an energy cost function (energy consumption versus execution time) that is independent of the task characteristics. In practice the actual energy cost functions vary significantly from task to task. Different tasks running on the same hardware platform can exhibit different memory and peripheral access patterns, cache miss rates, etc. These effects results in a distinct energy cost function for each task.We present a n
ClinicalTrials.gov NCT01389843; https://clinicaltrials.gov/study/NCT01389843.
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