http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Alba Rita Valenzuela-Briseno,Jeanette Guadalupe Arredondo-D,Antonio Rascon-Careaga,Humberto stiazaran-Garcia,Agustin Gomez-Alvarez,Reynaldo Esquivel-Gonzalez,Roberto Carlos Carrillo-Torres,Enrique Alv 환경독성보건학회 2022 환경독성보건학회지 Vol.37 No.4
This study aimed to evaluate whether aluminum chloride (AlCl₃) causes hematological changes in the peripheral blood of Sprague–Dawley (SD) rats. Five groups of female SD rats were intragastrically administered with 4 different concentrations of AlCl₃ for 5 days a week for a total of 90 days. The aluminum concentration was determined via graphite furnace atomic absorption spectroscopy. Analysis of serum iron-kinetic profiles, blood cytometry outcomes, and blood smears of the blood samples. Scanning electron microscopy (SEM) and Raman spectroscopy were used to search for structural and ultrastructural changes, respectively. Blood aluminum concentration ranged 12.38-16.24 μg/L with no significant difference between experimental treatments. At the AlCl₃ concentration of 40 mg Al/kg bw of rats/day, the mean ferritin value in the serum iron kinetic profile was 29.81±6.1 ng/mL, and this value showed a significant difference between experimental treatments. Blood cytometry revealed that there were 6.45-7.11×10<SUP>6</SUP> cells/μL erythrocytes, 8.91-9.32×10³ cells/μL leukocytes, and 477.2-736.3×10³ cells/μL platelets along with a hemoglobin of 37.38-41.93 g/dL and hematocrit level of 37.38-41.93%; the experimental treatments showed no significant differences. Erythrocyte structural analysis using SEM showed no differences between experimental treatments, whereas ultrastructural evaluation using Raman spectroscopy made it possible to identify the following bands: 741, 1123, 1350, 1578, and 1618 cm<SUP>−1</SUP>, which were respectively associated with the following vibrational modes and compounds: vibration of the tryptophan ring, asymmetric C-O-C stretching of glucose, C-H curve of tryptophan, C=C stretching of the heme group, and C-N stretching of the heme group, with no significant differences between experimental treatments. Therefore, AlCl₃ administration does not induce ultrastructural changes in the erythrocyte membrane. This study revealed that serum ferritin concentration was the only parameter affected by AlCl₃ exposure at 40 mg of Al/kg bw of rats/day.
김상우,이창연,( Yuxiang Li ),이원호,이영민,최준형,김태수,( Cheng Wang ),( Enrique D. Gomez ),우한영,김범준 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
The control of the bulk heterojunction (BHJ) morphology in polymer/ polymer blends remains a critical hurdle for optimizing all-polymer solar cells (all-PSCs). The relationship between donor/acceptor phase separation, domain size, and the resulting photovoltaic characteristics of poly{2,5-di(2-thienyl)thiophene-alt-6,7-difluoro-2,3-bis(3,4-bi(octyloxy) phenyl)quinoxaline)} and poly{N,N`-bis(2-octyldodecyl-naphthalene- 1,4,5,8-bis(dicarboximide)-2,6-diyl)-alt-5,5`-(2,2`-bithiophene) }-based all-PSCs was investigated. We varied the film-processing solvents (chloroform, chlorobenzene, o-dichlorobenzene and p-xylene), thereby manipulating the phase-separation of all-polymer blends with the domain size in the range of 30-300 nm. Our results suggest that the BHJ morphology was not fully optimized for most of the previous highperformance all-PSC systems, and their photovoltaic performance can be further improved by fine-engineering the film morphology.
Lee, Changyeon,Li, Yuxiang,Lee, Wonho,Lee, Youngmin,Choi, Joonhyeong,Kim, Taesu,Wang, Cheng,Gomez, Enrique D.,Woo, Han Young,Kim, Bumjoon J. American Chemical Society 2016 Macromolecules Vol.49 No.14
<P>The control of the bulk-heterojunction (BHJ) morphology in polymer/polymer blends remains a critical hurdle for optimizing all-polymer solar cells (all-PSCs). The relationship between donor/acceptor phase separation, domain size, and the resulting photovoltaic characteristics of PDFQx3T and P(NDI2OD-T2)-based all-PSCs was investigated. We varied the film-processing solvents (chloroform, chlorobenzene, o-dichlorobenzene, and p-xylene), thereby manipulating the phase separation of all-polymer blends with the domain size in the range of 30-300 nm. The different volatility and solubility of the solvents strongly influenced the aggregation of the polymers and the BHJ morphology of polymer blends. Domain sizes of all-polymer blends were closely correlated with the short-circuit current density (J(SC)) of the devices, while the open-circuit voltage (0.80 V) and fill factor (0.60) were unaffected. All-PSCs with the smallest domain size of similar to 30 nm in the active layer (using chloroform), which is commensurate with the domain size of highly efficient polymer/fullerene solar cells, had the highest J(SC) and power conversion efficiency of 5.11% due to large interfacial areas and efficient exciton separation. Our results suggest that the BHJ morphology was not fully optimized for most of the previous high-performance all-PSC systems, and their photovoltaic performance can be further improved by fine-engineering the film morphology, i.e., domain size, domain purity, and polymer packing structure.</P>