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RISS 인기검색어
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- 저자 : Meiling Lei (검색결과 3 건)
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Pengtao Yan,Lei Yan,Sumei Zhao,Zhen Zuo,Xiaoxu Wang,Chenglin Wang,Meiling Hou 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.8
A graphene-based composite with high electrochemical performance for supercapacitor applications is fabricated by introducing nanoscale carbide-derived carbon (NCDC) into the fluorine-doped graphene (FG). The incorporation of fluorine can increase the specific capacitance of graphene by providing more pseudocapacitance, whereas the introduction of NCDC into the FG/NCDC composite offers high specific surface area (SSA) (up to 1317 m2 g -1) and hierarchical pore structure, resulting in an enhanced electric double layer capacitance. Due to the synergistic effect of pseudocapacitance and electric double layer capacitance, the specific capacitance of FG/NCDC composite can reach 321 F g -1 at a scan rate of 5 mV s -1 in aqueous electrolyte. Notably, the specific capacitance of the FG/NCDC composite is very stable during long-term cyclic tests, with no significant degradation after 10,000 cycles. Due to its excellent supercapacitive performance, the FG/NCDC composite can be considered as a promising electrode material for high-performance supercapacitors.
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Tong Shen,Jianming Li,Xiaoshun He,Meiling Lei,Jingru Wang,Xiuming Li 한국유전학회 2014 Genes & Genomics Vol.36 No.6
Here, the major histocompatibility complex(MHC) class II alpha chain gene in the Chinese longsnoutcatfish (Leiocassis longirostris) was characterized throughcloning, sequencing, polymorphism analysis, and expressionpatterns in various tissues. The full-length LeloDAAcDNA comprises 1,114 bp with a 50-UTR region of 79 bp,an open reading frame of 714 bp and a 30-UTR of 302 bp. The deduced protein sequence shows the followingimportant features: leader peptide, a1, a2, and CP/TM/CYT regions. Using long PCR techniques, the genomicsequence was further identified to be 2,093 bp in length,containing four exons and three introns. Three class IIAalleles were identified from four individuals. Two differentalleles observed (at most) in each individual suggest theexistence of a single locus of class IIA gene in the Chineselongsnout catfish genome. This locus is polymorphic andmost of the amino acidic changes occurred in the a1domain containing the peptide-binding region. Lelo-DAAmRNA expression was mainly found in the intestine, gills,spleen, head kidney and liver; minor expression wasdetected in the stomach, skin, heart and muscle. Our resultsyield insight into Chinese longsnout catfish T cell immuneresponses and will aid future work on the genetic status ofthis economically important species.
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Ion-Imprinted Polymers Modified Sensor for Electrochemical Detection of Cu2+
Zhuolin An,Weifeng Liu,Qi Liang,Guang Yan,Lei Qin,Lin Chen,Meiling Wang,Yongzhen Yang,Xuguang Liu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2018 NANO Vol.13 No.12
An electrochemical sensor (Cu2+-IIPs/GCE) was developed for detection of Cu2+ in water. Cu2+-IIPs/GCE was prepared by dispersing Cu2+ imprinted polymers (Cu2+-IIPs) on a preprocessed glassy carbon electrode. Cu2+-IIPs were synthesized on the surface of modified carbon spheres by ion imprinting technology. The electrochemical performance of Cu2+-IIPs/GCE was evaluated by differential pulse voltammetry method. The response of Cu2+-IIPs/GCE to Cu2+ was linear in 1.0 x 10 -5 mol/L to 1.0 x 10 -3 mol/L. The detection limit was 5.99 x 10 -6 mol/L (S/N = 3). The current response value of Cu2+-IIPs/GCE was 2.14 times that of the nonimprinted electrode. These results suggest that Cu2+-IIPs/GCE can detect the concentration of Cu2+ in water, providing a new way for heavy metal ions adsorption and testing.
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