http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
건설장비의 배출가스 데이터 기반 대기오염물질 배출량 예측 시스템
노재윤 ( Noh¸ Jaeyun ),김유진 ( Kim¸ Yujin ),김수민 ( Kim¸ Sumin ),한승우 ( Han¸ Seungwoo ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2
As non-road mobile pollutants such as construction equipment are emerging as the main cause of air pollutants emission, construction equipment regulations are gradually strengthening. Research was conducted by correcting the emission coefficient to calculate and predict air pollutant emissions of construction equipment, but it did not reflect site variables such as field and equipment conditions that affect actual emissions. This study derived an Artificial Neural Network emission prediction model based on the actual emission data of excavators and trucks measured at the site and proposed a platform to predict the emission of air pollutants at the site according to the working size and conditions. Through this, it is possible to establish an eco-friendly process plan using a model from the construction plan.
Kim, Jaeyun,Park, Sungjin,Lee, Ji Eun,Jin, Seung Min,Lee, Jung Hee,Lee, In Su,Yang, Ilseung,Kim, Jun-Sung,Kim, Seong Keun,Cho, Myung-Haing,Hyeon, Taeghwan WILEY-VCH Verlag 2006 Angewandte Chemie Vol.45 No.46
<B>Graphic Abstract</B> <P>Targeting cancer: Multifunctional magnetic gold nanoshells (Mag-GNS) are prepared by coating silica spheres with gold nanoshells embedded with Fe<SUB>3</SUB>O<SUB>4</SUB> nanoparticles. The Fe<SUB>3</SUB>O<SUB>4</SUB> nanoparticles allow magnetic resonance imaging (MRI) for diagnosis, and the gold nanoshells enable photothermal therapy. By attaching an antibody to the Mag-GNS by a poly(ethylene glycol) (PEG) linker, cancer cells can be targeted. <img src='wiley_img/14337851-2006-45-46-ANIE200602471-content.gif' alt='wiley_img/14337851-2006-45-46-ANIE200602471-content'> </P>
Dental Hetero-Graft Materials with Nano Hydroxyapatite Surface Treatment
Kim, Dai-Hwan,Kim, Kyung-Il,Yoon, Seokyoung,Kim, Hyung-Jo,Ahn, Jin-Soo,Jun, Sang Ho,Kang, Ho Chang,Pang, Changhyun,Kim, Jaeyun,Cha, Hyung Joon American Scientific Publishers 2015 Journal of nanoscience and nanotechnology Vol.15 No.10
<P>We report the development of hydroxyapatite nanoparticle (HAp NP)-functionalized hetero-graft materials (HGMs) for dental applications. These HGMs were prepared by attaching platelet-, needle-, and sphere-shaped HAp NPs to the surface of xenograft materials through chemical conjugation. Although all three HAp NPs contributed to increase the surface area of bone graft material (BGM), the shape of the HAp NPs was a determining factor. Platelet HAp NPs were most effective, because they caused a 48.9% increase in BGM surface area whereas the influence of the spherical NP was only a 6.7% increase. This suggests that geometric factors regarding both the attached HAp NPs and graft material surface are essential in controlling the surface roughness of graft materials. Among the three HAp NPs, it was the platelet HAp NPs that helped to increase the efficacy of the BGM most significantly. Compared with BGM with no HAp NP attachment, HGM with platelet HAp NP ('platelet-HGM) treatment had similar to 46.1% higher cell attachment and proliferation rate. The MU assay also showed that the HAp NP-treated hetero-graft materials had negligible cytotoxicity.</P>
Magnetic mesoporous materials for removal of environmental wastes
Kim, Byoung Chan,Lee, Jinwoo,Um, Wooyong,Kim, Jaeyun,Joo, Jin,Lee, Jin Hyung,Kwak, Ja Hun,Kim, Jae Hyun,Lee, Changha,Lee, Hongshin,Addleman, R. Shane,Hyeon, Taeghwan,Gu, Man Bock,Kim, Jungbae Elsevier 2011 Journal of hazardous materials Vol.192 No.3
<P><B>Highlights</B></P><P>• Iron oxide particle embedded mesoporous silica and carbon are synthesized. • Both mesoporous materials are separated easily under aqueous condition using magnet. • Mercury or fluorescein is removed by using magnetic mesoporous material. • Tyrosinase is immobilized in magnetic mesoporous silica and reused after reaction. • Magnetic mesoporous materials are applicable to removal of environmental wastes.</P> <P><B>Abstract</B></P><P>We have synthesized two different magnetic mesoporous materials that can be easily separated from aqueous solutions by applying a magnetic field. Synthesized magnetic mesoporous materials, Mag-SBA-15 (magnetic ordered mesoporous silica) and Mag-OMC (magnetic ordered mesoporous carbon), have a high loading capacity of contaminants due to high surface area of the supports and high magnetic activity due to the embedded iron oxide particles. Application of surface-modified Mag-SBA-15 was investigated for the collection of mercury from water. The mercury adsorption using Mag-SBA-15 was rapid during the initial contact time and reached a steady-state condition, with an uptake of approximately 97% after 7h. Application of Mag-OMC for collection of organics from water, using fluorescein as an easily trackable model analyte, was explored. The fluorescein was absorbed into Mag-OMC within minutes and the fluorescent intensity of solution was completely disappeared after an hour. In another application, Mag-SBA-15 was used as a host of tyrosinase, and employed as recyclable catalytic scaffolds for tyrosinase-catalyzed biodegradation of catechol. Crosslinked tyrosinase in Mag-SBA-15, prepared in a two step process of tyrosinase adsorption and crosslinking, was stable enough for catechol degradation with no serious loss of enzyme activity. Considering these results of cleaning up water from toxic inorganic and organic contaminants, magnetic mesoporous materials have a great potential to be employed for the removal of environmental contaminants and potentially for the application in large-scale wastewater treatment plants.</P>
Kim, Jaeyun,Kim, Hoe Suk,Lee, Nohyun,Kim, Taeho,Kim, Hyoungsu,Yu, Taekyung,Song, In Chan,Moon, Woo Kyung,Hyeon, Taeghwan WILEY-VCH Verlag 2008 Angewandte Chemie. international edition Vol.47 No.44
<B>Graphic Abstract</B> <P>Magnetic, fluorescent core–shell nanoparticles consist of a single Fe<SUB>3</SUB>O<SUB>4</SUB> nanocrystal core and a dye-doped mesoporous silica shell with a poly(ethylene glycol) coating (see picture of TEM images and schematic depictions). These nanoparticles can be used as magnetic resonance and fluorescence imaging agents, and as drug delivery vehicles, thus making them novel candidates for simultaneous cancer diagnosis and therapy. <img src='wiley_img/14337851-2008-47-44-ANIE200802469-content.gif' alt='wiley_img/14337851-2008-47-44-ANIE200802469-content'> </P>
Kim, Jaeyun,Arifin, Dian R.,Muja, Naser,Kim, Taeho,Gilad, Assaf A.,Kim, Heechul,Arepally, Aravind,Hyeon, Taeghwan,Bulte, Jeff W. M. WILEY‐VCH Verlag 2011 Angewandte Chemie Vol.123 No.10
<P><B><I>Doppeltes Abschirmen</I></B> von Inselzellen und multimodale Bildgebung mithilfe eines Kapsel‐in‐Kapsel‐Systems werden in der Zuschrift von T. Hyeon et al. auf S. 2365 ff. beschrieben. Die semipermeable äußere Alginatmembran unterbindet das Eindringen von Immunzellen und Antikörpern, lässt aber die ungehinderte Diffusion von Nährstoffen, Glucose, Sauerstoff und von den Inselzellen produziertem Insulin zu. Die innere Kapsel, die Eisenoxid‐ und Gold‐Bildgebungsagentien enthält, schützt die Zellen vor dem direkten Kontakt mit den Nanopartikeln.</P>
Multifunctional Silver-Embedded Magnetic Nanoparticles as SERS Nanoprobes and Their Applications
Jun, Bong-Hyun,Noh, Mi Suk,Kim, Jaeyun,Kim, Gunsung,Kang, Homan,Kim, Min-Soo,Seo, Young-Tae,Baek, Jongho,Kim, Jong-Ho,Park, Juyoung,Kim, Seongyong,Kim, Yong-Kweon,Hyeon, Taeghwan,Cho, Myung-Haing,Jeon WILEY-VCH Verlag 2010 Small Vol.6 No.1
<P>In this study, surface-enhanced Raman spectroscopy (SERS)-encoded magnetic nanoparticles (NPs) are prepared and utilized as a multifunctional tagging material for cancer-cell targeting and separation. First, silver-embedded magnetic NPs are prepared, composed of an 18-nm magnetic core and a 16-nm-thick silica shell with silver NPs formed on the surface. After simple aromatic compounds are adsorbed on the silver-embedded magnetic NPs, they are coated with silica to provide them with chemical and physical stability. The resulting silica-encapsulated magnetic NPs (M-SERS dots) produce strong SERS signals and have magnetic properties. In a model application as a tagging material, the M-SERS dots are successfully utilized for targeting breast-cancer cells (SKBR3) and floating leukemia cells (SP2/O). The targeted cancer cells can be easily separated from the untargeted cells using an external magnetic field. The separated targeted cancer cells exhibit a Raman signal originating from the M-SERS dots. This system proves to be an efficient tool for separating targeted cells. Additionally, the magnetic-field-induced hot spots, which can provide a 1000-times-stronger SERS intensity due to aggregation of the NPs, are studied.</P> <B>Graphic Abstract</B> <P>Multifunctional nanoparticles (M-SERS dots), which exhibit highly sensitive SERS signals, are used as SERS coding chemicals. The magnetically active SERS dots can be used for cancer-cell targeting, imaging, and separation (see image). <img src='wiley_img/16136810-2010-6-1-SMLL200901459-content.gif' alt='wiley_img/16136810-2010-6-1-SMLL200901459-content'> </P>
Therapeutic Vaccine Based on Mesoporous Silica Particles
Jaeyun Kim(김재윤) 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
In the recent decades, immunotherapy has been recognized as a promising therapeutic method for cancer treatment. To enhance host immune responses against cancer, antigen presenting cells such as dendritic cells (DCs) need to be activated using tumor-associated antigens and adjuvants, which induces a cascading adaptive immune response targeting tumor cells. Recently we found that injectable mesoporous silica particles could be spontaneously stacked in the subcutaneous space after injection and generate interarticular pores that could be served as cellular microenvironments to recruit and manipulate DCs. The subsequent direct delivery of nano-vaccines carrying protein antigen or antigen-coding DNAs to the recruited DCs significantly enhance antigen-specific T cell responses. These findings suggest that mesoporous silica could be used as an efficient delivery vehicle as well as cell-recruiting scaffold to induce enhanced cancer immunotherapy.