Ionic Passivation and Oxidation Dynamics for Enhanced Viability of Copper-Based On-Skin Bioelectrodes in Biological Environments

이중호,윤가은,전주형,Phuong Thao Le,김승환,임근배 한국센서학회 2023 센서학회지 Vol.32 No.6

The integration of bioelectronic devices with the skin is a promising strategy for personalized healthcare monitoring anddiagnostics. On-skin bioelectrodes hold great potential for the real-time tracking of physiological parameters. However, persistentchallenges of stability and reliability have instigated exploration beyond conventional noble metals. This studyfocuses on the ionic passivation and oxidation dynamics of copper-based on-skin thin-film bioelectrodes. Through parylenechemical vapor deposition, we harness a controlled thin film of parylene insulation to counter the intrinsic susceptibility ofcopper to oxidation in the ionic environment. The results represent the relationship among the parylene insulation thickness,copper oxidation, and electrode impedance over temporal intervals. Comparative analyses indicate that the short-term stabilityof the copper electrode is comparable to that of the gold electrode. Therefore, we propose a cost-effective strategyfor fabricating copper-based on-skin bioelectrodes by introducing enhanced ionic stability within a discernible operationaltimeframe. This study enriches our understanding of on-skin bioelectronics and affordable material choices for practical usein wearable healthcare devices

협부 연부조직을 직접 침습한 상악동 아스페르길루스증

이중호,이소영,오득영,김상화,이종원,안상태 대한성형외과학회 2011 Archives of Plastic Surgery Vol.38 No.5

Purpose: With an increase in the population of immunocompromised patients, the incidence of maxillary sinus aspergillus infection has also escalated. Maxillary sinus aspergillosis is generally extended to the sinus antrum, base or thin orbital wall and ethmoid air cell region. We experienced a case of maxillary sinus aspergillosis which was extended directly to the soft tissue of the cheek. Methods: A 46-year-old man with acute myelogenous leukemia was consulted for the defect of the anterior wall of the maxillary sinus, and cheek. Radiologic and histologic findings were consistent with invasive maxillary sinus aspergillosis. The otolaryngology department performed debridement via endoscopic sinus surgery first. Coverage of the resulting defect in the anterior wall of the maxillary sinus and its inner layer was undergone by the plastic and reconstructive surgery department, using a pedicled superficial temporal fascia flap and a split thickness skin graft. The remaining skin defect of the cheek was covered with a local skin flap. Results: The patient went through an uneventful recovery. There was no recurrence during 6 months of follow-up. Conclusion: Maxillary sinus aspergillosis usually involves the orbit or the gingiva but in some cases it may directly invade soft tissues of the cheek. Such an atypical infection extending into the cheek may lead to a large soft tissue defect requiring coverage. Thus, any undiagnosed soft tissue defect involving the cheek or maxillofacial area,especially in immunocompromised patients, should be evaluated for aspergillosis. We present this rare case, with a review of the related literature.

AI/기계학습의 생명정보분석 응용

이중호,구가심,김한별,윤석현 대한전자공학회 2020 전자공학회지 Vol.47 No.10

밀리미터파 대역의 칩 간 통신을 위한 소형화된 Slow-Wave On-Chip 다이폴 안테나

이중호,변철우,송인상,김홍이,조성준,이채준,윤종현,이해진,이중근,오인열,박철순 한국ITS학회 2013 한국ITS학회 학술대회 Vol.2013 No.2

MASW 탐사자료를 이용한 지반정수 산출에 대한 적용사례

이중호,장승익,이창열,최수철 대한지질공학회 2004 지질공학 단기강좌 Vol.2004 No.-

Scalable fabrication of microneedle arrays with various shapes enabled by grayscale lithography

이중호,임근배 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.4

동의보감에 기록된 맥류의 의학적 가치

이중호 한국맥류산업발전연구원 1994 한국맥류연구회지 Vol.2 No.-

사회복지법의 개념과 법체계의 개선방안

이중호 동아대학교 법학연구소 2015 東亞法學 Vol.- No.68

This paper is of the concept of social welfare and system of legal on the social welfare. Here is examining difference of the concept of social welfare On the side social welfare science and jurisprudence. the concept of seeing any difference, and the difference is that where is occurring, and what legal basis, a system of social law how it was at the Look. Naw days, Service practice cases is tend to put too much emphasis in the areas of Social Welfare. No matter how good the services of social, services are also service subject and demander passed they are made through trail and error. Consequence, the time and cost of importing waste. Social welfare policies, no matter how good the law can take effect without the constitutional Artical 10 to Joe because Joe Artical 34 of essential social welfare and social welfare laws so we can confirm the importance of law and Social Security Business Act. However, the ideological premise of social welfare-related ideas and concepts mentioned at fault ‘as a means of social welfare gwangui’. In other words, learn about the social security system and welfare scholars have classified the scheme would also briefly mentioned. The actual circumstance of studies on the legislation system of social welfare in korea is insufficient, so the more research efforts are required for systematization of social welfare laws. The social welfare law is defined in this study as every laws that insure the human life within social relations and rule the public, and private systems & politics etc. for realizing social justice. and this study suggested the legislation system of social welfare in korea divided into the social security act and the laws in connection with social welfare appling the concept in broad sense. It included in the social security act, general social security(2), social insurance(10), public assistance(6), social welfare service(21) laws and included in other laws in connection with social welfare, the laws(151) that legislated for insuring the human life of constitutional law trying to categorize by classifying into public health․hygiene, residing․environment, education, employment․labor, traffic, feminine․family, children․adolescent, veteran․compensation, human rights․protection and other general social welfare area. 사회복지법은 학문적․실천적으로 많이 논의되고 있음에도 불구하고 그 이해방법과 범주, 그리고 체계적 특성이 모호한 상태에 있다. 사회복지법은 헌법의 구체화법으로 존재한다. 즉 사회복지법이 정치타협의 대상으로 여겨지는 것은 이제 지양되어야 할 것이다. 또한 사회복지 관련법 전반을 우리 헌법의 기준으로 재설계하고 재구성하여야 할 시점이 아닌 가 사료된다. 기본적 헌법 원리로서 민주국가원리, 법치국가원리, 사회국가원리의 기반 하에 사회복지법제의 체계정립이 다시 이뤄져야할 것으로 본다. 더불어 행정법 체제에 기반 하여 사회복지법의 전반적 검토가 이뤄져야 한다. 특히 법치행정의 원칙 아래서 사회복지법을 검토․분석․비판하는 것은 무엇보다도 시급하다고 사료되며, 결국 사회복지의 수혜자- 이른바 ‘사회복지권자’-의 관점에서 사회복지의 실체적 내용과 절차적 체계에 대한 법제완비가 이뤄져야 할 것으로 본다. 이를 위하여 본 논문에서는 그간 급부행정의 영역이라 해서 다소 관대하게 취급된 법률유보의 원리를 사회복지 입법이나 법률해석에서 보다 적극적으로 적용되어야 함을 기조로 이른바 ‘사회복지권’ 개념의 명확화, ‘사회복지권’ 집행을 위한 절차규범완비 및 법제의 체계․균형․ 합목적성 도모를 개선의 방향으로 제시하였다.

행정기획에 대한 법적통제

이중호 경성대학교 법학연구소 1995 경성법학 Vol.4 No.-

쇠뜨기(Equisetum arvense L.)의 수용추출액이 몇가지 식물의 캘러스 생장, 종자발아, 유묘생장 및 항균활성에 미치는 영향

이중호,이승엽 한국자원식물학회 1999 한국자원식물학회지 Vol.12 No.1

쇠뜨기에 다른식물의 생장을 저해하는 물질이 생성되는지를 알아보기 위하여, 수용추출액으로 몇가지 식물의 캘러스 생장, 종자발아, 유묘생장 및 항균활성에 미치는 영향을 조사하였다. 수용 추출액의 첨가농도가 높은 배지에서 벼와 배추의 캘러스 유기 및 발달을 억제하였으며, 8$0^{\circ}C$ 추출액이 $25^{\circ}C$ 추출액보다 유의하게 캘러스 유기 및 생장을 억제하였다. 20%추출액 첨가배지에서 공시식물의 캘러스 생장은 추출온도에 관계없이 도라지, 참깨, 배추, 벼 순으로 억제되었다. 냉동건조한 수용추출액 고형물은 저농도에서는 영향이 적었으나, 처리농도에 비례하여 벼, 참깨, 배추의 종자발아를 억제하였고, 특히 배추는 2,000$\mu\textrm{g}$/mι농도에서 대조구의 28.3%로 급격한 발아억제를 보였다. 유식물 생장은 500$\mu\textrm{g}$/mι의 저농도에서는 대조구보다 초장이 약간 촉진되는 경향을 보였으나, 처리농도가 증가함에 따라 심하게 억제되었으며, 특히 근장이 유의하게 억제되었다. 추출액 고형물의 항균활성은 500$\mu\textrm{g}$에서 E. carotovora에서만 약간의 억제대를 형성하였으며, X. oryzae pv. oryzae와 E. coli에 대해서 는 항균활성을 보이지 않았다. To investigate phytotoxic substances in Equisetum arvense, the aqueous extracts(25 and 8$0^{\circ}C$) or the freeze-drying matter from aqueous extracts($25^{\circ}C$) of E. arvense were tested at different concentrations for biological activities on callus induction and growth, seed germination, seedling growth and antibacterial function. Callus induction and growth of Oryza sativa and Brassica campestris ssp. pekinensis were inhibited by the aqueous extracts at 8$0^{\circ}C$ than at $25^{\circ}C$ and the higher concentrations. Callus growth of four receptor species was inhibited in order of Platycodon grandiflorum, Sesamum indicum, Brassica campestris ssp. pekinensis and Oryza sativa. Seed germination of Ο. sativa, S. indicum, and B. campestris ssp. pekinensis was not affected at low concentration, but it was proportionally inhibited by the higher concentrations. The greatest inhibition of seed germination was 28.3% compared to control, when 2,000$\mu\textrm{g}$/ml of freeze-drying matter was applied to B. campestris ssp. pekinensis. Shoot growth was stimulated by 500$\mu\textrm{g}$/ml of freeze-drying matter, but it was inhibited by the higher concentrations. Root growth was significantly inhibited compare to control at all concentrations. Antibacterial activity of freeze-drying matter didn't showed against Xantomonas oryzae and Eschrichia coli, but a small clear zone was formed by 500$\mu\textrm{g}$ of freeze-drying matter against Erwinia carotovora ssp. carotovora.