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Uuriintuya Dembereldorj,주상우 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.1
Adsorption structures of the self-assembled thin films of α-cyano-4-hydroxycinnamic acid (CHCA) anchoring on TiO2surfaces have been studied by using temperature-dependent diffuse reflectance infrared Fourier-transform (DRIFT)spectroscopy. From the presence of the strong ν(COO−) band at ~1390 cm-1 along with the disappearance of the OH bands in the carboxylic acid group in the DRIFT spectra at room temperature, CHCA appeared to adsorb onto TiO2 surfaces as a carboxylate form. The absence of the out-of-plane benzene ring modes of CHCA in the DRIFT spectra suggests a rather vertical orientation of CHCA on TiO2. Above ~220 oC, CHCA seemed to start to thermally degrade on TiO2 surfaces referring from the disappearance of most vibrational modes in the DRIFT spectra, whereas the ν(C ≡ N) bands were found to remain relatively conspicuous as the temperature increased even up to ~460 C.
몽골 소비자 라이프스타일과 광고모델 속성이 한국 화장품 광고태도에 미치는 영향
Uuriintuya Batshugar,김경태 한국유통과학회 2016 유통과학연구 Vol.14 No.8
Purpose - Korean Wave that overspreads around Asia and America, especially the Korean beauty wave, has reached Mongolia and Mongolian consumers. Mongolia consumers usually prefer foreign cosmetic brands to local brands, because the local brands cannot satisfy fast changing needs and wants of local consumers. Research design, data, and methodology - Based on previous studies about life style of Mongolian consumers, advertisement properties and consumer behaviors, we propose a research model and related hypothesis. In order to test hypotheses, we analyzed 366 survey data out of 376 by eliminating improper 10 responses. Factor analysis and reliability analysis was conducted by SPSS 22.0. We used multiple regression analysis and parameter analysis to test the relation between variables. Results - As exploring the Mongolian consumers' current usage of cosmetic products, we found that the customers’ focus is how the products fit with their skin. Mongolian consumers often get the information about cosmetic products through TV and internet. Mongolian consumers show positive attitudes on the appearance of Korean celebrities in responsibility, while there is no significant effect on attractiveness. Mongolian consumer’s behaviors toward brand have positive effect on both responsibility and attractiveness of Korean commercial celebrities. Responsibility and attractiveness of Korean commercial celebrities have positive effect on the behaviors toward advertisements of cosmetic products. Conclusions - Behaviors toward advertisements of cosmetic products have positive effect on both purchase intention and loyalty of customer. Responsibility and attractiveness of Korean commercial celebrities have positive effect on mediating variable of behavior toward advertisement and independent variable of purchase intention. Responsibility and attractiveness of Korean commercial celebrities have positive effect on mediating variable of behavior toward advertisement and independent variable of loyalty of customer. In order to improve the effect of advertisements, firms need to consider not only the technique of the model but also the image of model in regard to trust and professionalism appealing to consumers. In addition, firms need to choose the model who fits in with the image of the firms and the products and service of the firms. Finally, Mongolian consumers tend to acquire the shopping information through TV advertisements, especially featuring Korean popular stars, thus, TV advertisements can be a wise option in Mongolian cosmetic market.
Dembereldorj, Uuriintuya,Kim, Mira,Kim, Semi,Ganbold, Erdene-Ochir,Lee, So Yeong,Joo, Sang-Woo The Royal Society of Chemistry 2012 Journal of materials chemistry Vol.22 No.45
<P>Both <I>in vitro</I> and <I>in vivo</I> glutathione (GSH)-triggered anticancer drug releases were monitored in real time from the PEGylated graphene oxide (PEG-GO) platform. The assembly of the anticancer drug doxorubicin (DOX) on PEG-GO was verified by UV-Vis absorption and infrared spectroscopic tools. The fluorescence of DOX appeared to be quenched significantly by PEG-GO. A part of the initial DOX (10<SUP>−4</SUP> M) in PEG-GO was found to be released by ∼23.5% after treatment with 2 mM glutathione (GSH) within 15 min. Our fluorescence colocalization experiments indicated that PEG-GO–DOX was endocytosed and localized in either lysosomes or endosomes of intracellular compartments. Using fluorescence imaging techniques in real time, we were able to observe an approximately 2.5 times higher <I>in vitro</I> drug release in the live cells by externally triggering glutathione ethyl ester (GSH-OEt) rather than endogeneous GSH. <I>In vivo</I> fluorescence images of DOX were obtained with an order of magnitude larger intensity from the subcutaneous site in living mice after treatment with 0.3 mg of GSH. A real-time release of DOX on PEG-GO at the intended locus can be achieved <I>in vivo</I> after an external triggering of GSH.</P> <P>Graphic Abstract</P><P>Real-time monitoring of glutathione (GSH)-induced anticancer drug release was achieved using the PEGylated graphene oxide (PEG-GO) platform both <I>in vitro</I> and <I>in vivo</I>. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2jm34853e'> </P>
Dembereldorj, Uuriintuya,Joo, Sang-Woo Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.1
Adsorption structures of the self-assembled thin films of $\alpha$-cyano-4-hydroxycinnamic acid (CHCA) anchoring on $TiO_2$ surfaces have been studied by using temperature-dependent diffuse reflectance infrared Fourier-transform (DRIFT) spectroscopy. From the presence of the strong $\nu(COO^-)$ band at ~1390 $cm^{-1}$ along with the disappearance of the OH bands in the carboxylic acid group in the DRIFT spectra at room temperature, CHCA appeared to adsorb onto $TiO_2$ surfaces as a carboxylate form. The absence of the out-of-plane benzene ring modes of CHCA in the DRIFT spectra suggests a rather vertical orientation of CHCA on $TiO_2$. Above ~220$ ^{\circ}C$, CHCA seemed to start to thermally degrade on $TiO_2$ surfaces referring from the disappearance of most vibrational modes in the DRIFT spectra, whereas the $\nu$(C ≡ N) bands were found to remain relatively conspicuous as the temperature increased even up to ~460$^{\circ}C$.
Huong-Thi Bui,Uuriintuya Odsuren,정문선,서정욱,김상용,박봉주 인간식물환경학회 2022 인간식물환경학회지 Vol.25 No.1
Background and objective: Particulate matter (PM) is the most dangerous form of air pollution, and causes many diseases. Plants act as bio-filters to help reduce PM in the atmosphere. PM also influences the growth of plants, so selecting suitableplant species for specific environmental conditions is very important. The air pollution tolerance index (APTI) was used todetermine the tolerance level of each plant species to air pollution. The purpose of this study was to determine thetolerance to air pollution of various plant species in order to identify plant species that can be grown in pollutedenvironments; this was achieved by evaluating the APTI of plants. This study analyzed the biochemical parameters of 12plant species at two sites with different air pollution levels (urban forest and roadside) to assess and compare the APTI ofplant species. Methods: The healthy leaves of 12 plant species (6 broad leaves and 6 needle leaves) that are commonly used in landscapesin Korea were chosen for this study. The same plant species were collected from two sites with different pollution levelsand were analyzed immediately; one site was an urban forest (Chungcheongbuk-do Forest Environment Research Institute)with an area of 25 ha and featuring high vegetation coverage, while the other was at a high-traffic roadside next to acrossroads near the Cheongju Express Bus Terminal. We used the leaf samples to analyze four biochemical parameters ofeach plant: leaf extract pH (pH), relative leaf water content (RWC), total chlorophyll (TChl), and ascorbic acid. Finally, basedon these values, APTI values were calculated. Results: The APTI values were different between all 12 plant species at both sites with different levels of pollution. APTIhad a significant correlation with the biochemical parameters of plants. Plants in the urban forest and at the roadsideshowed APTI values ranging from 6.89-9.37 and 7.57-9.94, respectively. The APTI of the roadside plant species tendedto be higher than that of the plants from the urban forest. Among 12 plant species, Acer palmatum, Acer buergerianum,and Pinus densiflora had high APTI values. These plant species can serve as biofilters in environments with high airpollution. Conclusion: The APTI of the 12 plant species in this study can aid in the selection of suitable plant species fromenvironments with different levels of air pollution. The high APTI of some roadside plant species may show their toleranceunder environmental pollution-related stress, or demonstrate their adaptability to the polluted environment. In the future,we need to examine more plant species under various environmental conditions to understand their tolerance levels to airpollution and to correlate plants with air pollution. Further, more studies on other air pollutants that can influence plantgrowth, such as SO2 and NOx, should be conducted.