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1.
Small ; 16(8): e1905480, 2020 02.
Article in English | MEDLINE | ID: mdl-31994288

ABSTRACT

Colloidal lithography technology based on monolayer colloidal crystals (MCCs) is considered as an outstanding candidate for fabricating large-area patterned functional nanostructures and devices. Although many efforts have been devoted to achieve various novel applicatons, the quality of MCCs, a key factor for the controllability and reproducibility of the patterned nanostructures, is often overlooked. In this work, an interfacial capillary-force-driven self-assembly strategy (ICFDS) is designed to realize a high-quality and highly-ordered hexagonal monolayer MCCs array by resorting the capillary effect of the interfacial water film at substrate surface as well as controlling the zeta potential of the polystyrene particles. Compared with the conventional self-assembly method, this approach can realize the reself-assembly process on the substrate surface with few colloidal aggregates, vacancy, and crystal boundary defects. Furthermore, various typical large-scale nanostructure arrays are achieved by combining reactive ion etching, metal-assisted chemical etching, and so forth. Specifically, benefiting from the as-fabricated high-quality 2D hexagonal colloidal crystals, the surface plasmon resonance (SPR) sensors achieve an excellent refractive index sensitivity value of 3497 nm RIU-1 , which is competent for detecting bovine serum albumin with an ultralow concentration of 10-8 m. This work opens a window to prepare high-quality MCCs for more potential applications.


Subject(s)
Biosensing Techniques , Colloids , Nanostructures , Surface Plasmon Resonance , Biosensing Techniques/instrumentation , Biosensing Techniques/methods , Colloids/chemistry , Nanostructures/chemistry , Polystyrenes/chemistry , Reproducibility of Results
2.
Mol Carcinog ; 58(5): 794-807, 2019 05.
Article in English | MEDLINE | ID: mdl-30614075

ABSTRACT

Core fucosylation catalyzed by core fucosyltransferase (Fut8) contributes to the progressions of epithelial ovarian cancer (EOC). Copper transporter 1 (CTR1), which contains one N-glycan on Asn15 , mediates cellular transport of cisplatin (cDDP), and plays an important role in the process of cDDP-resistance in EOC. In the present study, we found that the core fucosylation level elevated significantly in the sera of cDDP-treated EOC patients. The in vitro assays also indicate that core fucosylation of CTR1 was significantly upregulated in cDDP-resistant A2780CP cells compared to the cDDP-sensitive A2780S cells. Intriguingly, the hyper core fucosylation suppressed the CTR1-cDDP interactions and cDDP-uptake into A2780CP cells. Conversely, contrast to the Fut8+/+ mouse ovarian epithelial cells, the Fut8-deleted (Fut8-/- ) cells obviously showed higher cDDP-uptake. Furthermore, the recovered core fucosylation induced the suppression of cDDP-uptake in Fut8-restored ovarian epithelial cells. In addition, the core fucosylation could regulate the phosphorylation of cDDP-resistance-associated molecules, such as AKT, ERK, JNK, and mTOR. Our findings suggest that the core fucosylation of CTR1 plays an important role in the cellular cDDP-uptake and thus provide new strategies for improving the outcome of cDDP based chemotherapy of EOC.


Subject(s)
Carcinoma, Ovarian Epithelial/drug therapy , Cation Transport Proteins/metabolism , Cisplatin/pharmacology , Drug Resistance, Neoplasm , Fucose/metabolism , Fucosyltransferases/metabolism , Animals , Antineoplastic Agents/pharmacology , Apoptosis , Carcinoma, Ovarian Epithelial/metabolism , Carcinoma, Ovarian Epithelial/pathology , Cation Transport Proteins/chemistry , Cell Cycle , Cell Proliferation , Copper Transporter 1 , Female , Humans , Mice , Mice, Inbred BALB C , Tumor Cells, Cultured
3.
Zhongguo Zhong Yao Za Zhi ; 43(2): 401-403, 2018 Jan.
Article in Chinese | MEDLINE | ID: mdl-29552862

ABSTRACT

Origin of Chinese Characters (Shuowen Jiezi) records a large number of drug names, providing rich materials for the study of the history of pharmacy. But in the aftertime circulating process, errors were inevitable, making the ancient scholars disagree on the relationship between some drug names and their referents. This paper would give a textual research on medication names about chu, huo, huo, and hua. Relevant content was analyzed by using Shuowen Jiezi, Er Ya,Yu Pian and previous annotations of these exegesis books, as well as herbal literature. The relationship between the names and referents, as well as their lexical meanings were clarified by comparing textual content in specialized book about Chinese exegetics and previous herbal literature. Their medicinal efficacy was explained, and the value of herbalism in these exegesis books was explored.


Subject(s)
Books , Herbal Medicine , Medicine, Chinese Traditional , Research
4.
Zhongguo Zhong Yao Za Zhi ; 41(17): 3303-3305, 2016 Sep.
Article in Chinese | MEDLINE | ID: mdl-28920387

ABSTRACT

Many medicine names were recorded in Shuowen Jiezi. The later scholars interpreted these names, but they had different standpoints on the relationship between the name and nature of some medicines. In this study, the medicine names of diao, ji, li, tiao, and di with greater different standpoints were verified by textual research. Shuowen Jiezi, Erya, Guangya and previous annotations of these exegesis books were combined with herbal literature to summarize and analyze the relevant content. The herbal content in exegesis books were compared with the records in herbal literature to hackle the relationship between name and nature of medicines, clarify the lexical meaning and illustrate the efficacy of the medicines. Meanwhile, the value of herbalism in these exegesis books was explored.


Subject(s)
Books , Drugs, Chinese Herbal , Herbal Medicine , Research
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