Jong‐Ho Lee
한양대학교 공과대학 전기공학과 · 공학
이 교수의 연구실은 생체재료 및 임플란트 치료를 위한 조직공학적 접근을 핵심으로 하며, 타액선세포를 이용한 생체인공 점막 개발과 함께 추출된 치아에서 유래한 자가 조직 재료를 활용한 알베올러스 뼈 보강 기술을 연구하고 있습니다. 또한, 저소비 전력의 스파iking 신경망 장치와 고감도 산소 센서 등 반도체 소자 기반의 의료 및 환경 감지 기술 개발에도 주력하고 있습니다. 다양한 생체적 응용을 위한 나노소재 및 전자소자의 융합 연구가 진행 중입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Autogenous demineralized dentin matrix from extracted tooth grafted to extraction sockets for the augmentation of vertical dimension was as effective as augmentation using anorganic bovine bone. Both groups showed favorable wound healing, similar amount of implant stability, and histologically confirmed new bone formation. Thus, the results of this study suggest that autogenous tooth graft material is a viable option for alveolar bone augmentation following dental extraction.
Oxygen (O2) sensors are needed for monitoring environment and human health. O2 sensing at low temperature is required, but studies are lacking. Here we report, for the first time, that the performance of a field effect transistor (FET)-type O2 sensor operating at 25 °C was improved greatly by a physisorption sensing mechanism. The sensing material was platinum-doped indium oxide (Pt-In2O3) nanoparticles formed by an inkjet printer. The FET-type sensor showed excellent repeatability under a physi
Hardware-based spiking neural networks (SNNs) to mimic biological neurons have been reported. However, conventional neuron circuits in SNNs have a large area and high power consumption. In this work, a split-gate floating-body positive feedback (PF) device with a charge trapping capability is proposed as a new neuron device that imitates the integrate-and-fire function. Because of the PF characteristic, the subthreshold swing (<i>SS</i>) of the device is less than 0.04 mV/dec. The super-steep <i
In this letter, we propose an iterative time and frequency synchronization scheme for orthogonal frequency-division multiple access (OFDMA) uplink system using the space-alternating generalized expectation-maximization (SAGE) algorithm. In the proposed scheme, the expectation step of the SAGE algorithm is intended to remove the multiple-access interference (MAI) caused by the other asynchronous users. Then, the maximization step is utilized in the timing and frequency offset estimation of each a
The purpose of this study was to fabricate bioartificial mucosa using cultured oral keratinocytes (OKCs) on an amniotic membrane (AM), and to evaluate the possibility of developing a prelaminated myomucosal flap using the fabricated bioartificial mucosa and local muscle flap. Buccal mucosa was harvested from male New Zealand rabbits (n = 40, 2.5-3.0 kg) and primary cultivation was performed. The cultured OKCs were seeded on the AM and a submerged culture was performed. Prelamination of the bioar
