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자율주행시대의 주차시설 재생을 위한 분류 체계 - 서울 3대 도심 내 공영 주차시설을 대상으로
박치영(Park, Chiyoung) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
This study aims to derive a hierarchical classification method for the existing parking facilities in large cities. The 5 classification criteria - space, structure, size, use, and accessibility - were derived through a survey and analysis on the existing 205 public parking facilities in Jongno·Jung-gu, Gangnam-gu, and Yeongdeungpo-gu, the major downtown areas of Seoul. This classification method contributes to set the early direction of the existing parking facilities regeneration such as remodeling, reconstruction, and multi-dimensional land use planning.
Park, Chiyoung,Lee, Im Hae,Lee, Sanghwa,Song, Yumi,Rhue, Mikyo,Kim, Chulhee National Academy of Sciences 2006 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.103 No.5
<P>The dendritic building blocks with a focal pyrene unit self-organize into vesicles in aqueous phase. The in situ inclusion of the focal pyrene units into the cavity of beta- or gamma-cyclodextrin (CD) induces self-assembled organic nanotubes with an average outer diameter of approximately 45 nm and inner diameter of 22 nm. The surface of the nanotube is covered with CD. Therefore, the functional group on the surface of the nanotube is controlled simply by modifying the functionality of CD. The removal of CD from the nanotube with poly(propylene glycol) reversibly generates vesicles. This work provides an efficient methodology not only to create an additional class of CD-covered organic nanotubes but also to exhibit reversible transformation of nanotubes and vesicles triggered by the motifs of dendron self-assembly, CD inclusion, and pseudorotaxane formation.</P>
Park, Chiyoung,Im, Moon Sup,Lee, Sanghwa,Lim, Jino,Kim, Chulhee WILEY-VCH Verlag 2008 Angewandte Chemie Vol.47 No.51
<B>Graphic Abstract</B> <P>Take the tube: A systematic approach was used to construct a series of functional nanotubes by cooperative self-assembly of dendrons and cyclodextrins and their nanotube–nanoparticle hybrids (see picture). The nanotubes are also capable of sensing proteins by inducing specific binding of proteins on the tube surface. The “nanotube toolkit” has a great potential for the construction of functional nanomaterials. <img src='wiley_img/14337851-2008-47-51-ANIE200804087-content.gif' alt='wiley_img/14337851-2008-47-51-ANIE200804087-content'> </P>
Park, Chiyoung,Kim, Hyehyeon,Kim, Saehee,Kim, Chulhee American Chemical Society 2009 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.131 No.46
<P>The cyclodextrin covered porous silica nanoparticles (Si-MPs) exhibited enzyme responsive characteristics. The cyclodextrin gatekeepers on the surface of Si-MPs can be hydrolyzed by a-amylase to release guest molecules from the porous reservoir. The ester linkage in the stalk part of the cyclodextrin gatekeeper can also be cleaved by lipase to release guests from the channel. Our approach would provide a unique methodology for controlled delivery systems.</P>
Park, Chiyoung,Lim, Jino,Yun, Mikyoung,Kim, Chulhee WILEY-VCH Verlag 2008 Angewandte Chemie Vol.47 No.16
<B>Graphic Abstract</B> <P>The missing link: Supramolecular transformation from a vesicle to a fibrous nanostructure has been achieved by photolytic cleavage and supramolecular reorganization of a dendritic building block containing a 2-nitrobenzyl group (see picture). Furthermore, supramolecular aggregates of an amide dendron with a photoisomerizable azobenzene unit exhibit controlled release of encapsulated molecules upon photoirradiation in the aqueous phase. <img src='wiley_img/14337851-2008-47-16-ANIE200705271-content.gif' alt='wiley_img/14337851-2008-47-16-ANIE200705271-content'> </P>
Functional supramolecular assemblies derived from dendritic building blocks
Park, Chiyoung,Lee, Jeonghun,Kim, Chulhee Royal Society of Chemistry 2011 Chemical communications Vol.47 No.44
<P>Control of the structure and function of self-assembled materials has been a significant issue in many areas of nanoscience. Among many different types of building blocks, dendritic ones have shown interesting self-assembly behaviour and functional performances due to their unique shape and multiple functionalities. Dendritic building blocks exhibit unique self-assembly behaviour in diverse environments such as aqueous and organic solutions, solid–liquid interfaces, and thermotropic solid conditions. Tuning the balance between hydrophilic and hydrophobic parts, as well as the external conditions for self-assembly, provides unique opportunities for control of supramolecular architectures. Furthermore, the introduction of suitable functional moieties into dendrons enables us to control self-assembly characteristics, allowing nanostructures to exhibit smart performances for electronic or biological applications. The self-assembly characteristics of amphiphilic dendrons under various conditions were investigated to elucidate how dendrons can assemble into nanoscopic structures and how these nanoassemblies exhibit unique properties. Well-defined nanostructures derived from self-assembly of dendrons provide an efficient approach for exhibition of unique functions at the nanoscale. This feature article describes the unique self-assembly characteristics of various types of dendritic building blocks and their potential applications as advanced materials.</P> <P>Graphic Abstract</P><P>We describe unique supramolecuar materials derived from self-assembly of various types of dendritic building blocks and their potential applications as advanced materials. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1cc11531f'> </P>