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조혜진(Hyea Jin Cho),고은미(Eun Mi Ko) 한국열린유아교육학회 2015 열린유아교육연구 Vol.20 No.4
본 연구의 목적은 보육컨설턴트가 어린이집 보육컨설팅을 실행하면서 경험한 내용과 그 경험의 의미를 탐구하기 위한 것이다. 이를 위해 P시 육아종합지원센터에서 근무하고 있는 보육컨설턴트 5명을 대상으로 심층면담과 저널쓰기, 참여관찰 등의 자료를 수집하고 질적 분석을 하였다. 연구결과, 보육컨설턴트들은 컨설팅을 실행하는 과정에서 보육컨설팅을 또 다른 지도점검과 평가로 인식하는 원장과 정보의 사각지대에 있는 보육교사를 만나게 되었고, 평가인증만을 위한 어린이집의 컨설팅 요구, 어린이집의 다양한 특성과 수준에 맞는 컨설팅의 어려움과 연구시간의 부족, 교사의 작은 변화가 주는 보람 등을 경험하였다. 이러한 보육컨설팅 경험을 통해 보육컨설턴트들은 이해와 소통의 중요성, 리더의 변화가 어린이집 질적 개선의 출발이라는 것, 보육컨설팅이 어린이집의 자기 주도적 학습을 이끌어야한다는 것, 보육컨설턴트를 위한 멘토가 필요하다는 것을 깨달았다. 이러한 결과를 토대로 보육컨설팅의 개선을 위하여 보육컨설팅에 대한 다양한 홍보전략 마련, 상호이해를 위한 초기 관계형성단계의 강화, 원장의 전문성 향상을 위한 현직 교육 강화, 컨설턴트의 멘토가 되어줄 전문가 연계 등을 제안하였다. The purpose of this study was to examine the educare-consulting experience of educare consultants in childcare centers and the implications of their experience. The participants were five educare consultants working at a childcare support center in the Korean city of ‘P’. The data were collected through in-depth interviews, journals, and participant observation. According to the findings, first, the educare consultants faced childcare directors who viewed educare-consulting merely as evaluation required for accreditation, and also met childcare teachers who had no access to consulting information. Their difficulties included demand for customized consulting and a lake of time, but they gained satisfaction through seeing small positive changes in teachers. Second, the educare consultants learned the importance of understanding and communication, and they also realized that changes in the leader were the beginning of qualitative improvement in childcare centers, that educare-consulting should be effective enough to spur self-directed learning in childcare centers, and that consultants would benefit from having a mentor. Based on the implications of these results, several suggestions are put forth.
Yang, Sung Ho,Ko, Eun Hyea,Choi, Insung S. American ChemicalSociety 2012 Langmuir Vol.28 No.4
<P>The individual encapsulation of living cells has a great impact on the areas of single cell-based sensors and devices as well as fundamental studies in single cell-based biology. In this work, living Chlorella cells were encapsulated individually with abiological, functionalizable TiO2, by a designed catalytic peptide that was inspired by biosilicification of diatoms in nature. The bioinspired cytocompatible reaction conditions allowed the encapsulated Chlorella cells to maintain their viability and original shapes. After formation of the TiO2 shells, the shells were postfunctionalized by using catechol chemistry. Our work suggests a bioinspired approach to the interfacing of individual living cells with abiological materials in a controlled manner.</P>
Organic/inorganic double-layered shells for multiple cytoprotection of individual living cells
Hong, Daewha,Lee, Hojae,Ko, Eun Hyea,Lee, Juno,Cho, Hyeoncheol,Park, Matthew,Yang, Sung Ho,Choi, Insung S. Royal Society of Chemistry 2015 Chemical science Vol.6 No.1
<▼1><P><I>S. cerevisiae</I> encapsulated with a poly(norepinephrine)/silica double-layered shell showed multiple resistance to enzymatic attack, desiccation, and UV-C irradiation. The biochemical response of the encapsulated yeast may also contribute to the UV-C resistance.</P></▼1><▼2><P>The cytoprotection of individual living cells under <I>in vitro</I> and daily-life conditions is a prerequisite for various cell-based applications including cell therapy, cell-based sensors, regenerative medicine, and even the food industry. In this work, we use a cytocompatible two-step process to encapsulate <I>Saccharomyces cerevisiae</I> in a highly uniform nanometric (<100 nm) shell composed of organic poly(norepinephrine) and inorganic silica layers. The resulting cell-in-shell structure acquires multiple resistance against lytic enzyme, desiccation, and UV-C irradiation. In addition to the UV-C filtering effect of the double-layered shell, the biochemical responses of the encapsulated yeast are suggested to contribute to the observed UV-C tolerance. This work offers a chemical tool for cytoprotecting individual living cells under multiple stresses and also for studying biochemical behavior at the cellular level.</P></▼2>
Bioinspired Functionalization of Silica‐Encapsulated Yeast Cells
Yang, Sung Ho,Ko, Eun Hyea,Jung, Young Hwan,Choi, Insung S. WILEY‐VCH Verlag 2011 Angewandte Chemie Vol.123 No.27
<P><B>Harte Schale …︁</B> Lebende Hefezellen in einer Siliciumdioxid‐Hülle mit Thiol‐Funktionen sind durch Polykondensation von Kieselsäure und (3‐Mercaptopropyl)trimethoxysilan unter milden Bedingungen erhältlich. Fluoreszenzfarbstoffe (siehe Bild; grün: Fluorescein, rot: Rhodamin), chemische Strukturen oder Proteine können über Maleimid‐Gruppen an diese künstliche Schale gekuppelt werden.</P>
Cytoprotective Alginate/Polydopamine Core/Shell Microcapsules in Microbial Encapsulation
Kim, Beom Jin,Park, Taegyun,Moon, Hee Chul,Park, So‐,Young,Hong, Daewha,Ko, Eun Hyea,Kim, Ji Yup,Hong, Jong Wook,Han, Sang Woo,Kim, Yang‐,Gyun,Choi, Insung S. WILEY‐VCH Verlag 2014 Angewandte Chemie Vol.126 No.52
<P><B>Abstract</B></P><P>Chemical encapsulation of microbes in threedimensional polymeric microcapsules promises various applications, such as cell therapy and biosensors, and provides a basic platform for studying microbial communications. However, the cytoprotection of microbes in the microcapsules against external aggressors has been a major challenge in the field of microbial microencapsulation, because ionotropic hydrogels widely used for microencapsulation swell uncontrollably, and are physicochemically labile. Herein, we developed a simple polydopamine coating for obtaining cytoprotective capability of the alginate capsule that encapsulated <I>Saccharomyces cerevisiae</I>. The resulting alginate/ polydopamine core/shell capsule was mechanically tough, prevented gel swelling and cell leakage, and increased resistance against enzymatic attack and UV‐C irradiation. We believe that this multifunctional core/shell structure will provide a practical tool for manipulating microorganisms inside the microcapsules.</P>