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      • KCI등재

        ZnO nanowire lines and bundles: Template-deformation-guided alignment for patterned field-electron emitters

        Jizhong Song,Xue Ning,Haibo Zeng 한국물리학회 2015 Current Applied Physics Vol.15 No.11

        One-dimensional ZnO materials have been promising for field-emission (FE) application, but how to facially control the alignment of ZnO emitters is still a great challenge especially for patterned display application. Here, we report the fabrication of novel ZnO nanowire (NW) line and bundle arrays for patterned field-electron emitters. The effects of PS template size and heating time on the resulted ZnO nanoarrays were systematically studied. The deformation degree of PS templates was controlled and hence utilized to adjust the alignment of electrochemically deposited ZnO arrays. It was found that the length of NW lines and the density of NW bundles can effectively tuned by the PS template heating time. The optimal FE performance with turn-on electric field as low as of 4.4 V μm-1 and the fieldenhancement factor as high as of 1450 were achieved through decreasing the screening effect among the patterned field-electron emitters.

      • KCI등재

        Prediction on the physical properties of CuInS2 with various anion positions

        Yiming Ren,Yonghong Hu,Haibo Zeng,Li Xue 한국물리학회 2018 Current Applied Physics Vol.18 No.3

        The effects of various anion displacements (u) on electronic structures, elastic constants, Debye temperature and the minimum thermal conductivity of CuInS2 are studied by first-principles calculation. The lattice constant couples with the anion displacement, however, they are not consistent with the relation proposed by Abrahams and Bernstein. When the anion displacement varies from 0.2 to 0.3, the Cu-S bond length is elongated, while the In-S bond length is shortened, which cause the increase of band gap with anion displacement. The anisotropies of sound velocities and lattice thermal conductivities are also discussed. The results imply that the lattice thermal conductivity along [110] direction is the smallest and decreases with u. These research findings shed light on improving the thermoelectric properties by manipulating u and the direction of propagation.

      • KCI등재

        Candesartan-graft-polyethyleneimine Cationic Micelles for Effective Co-delivery of Drug and Gene in Anti-angiogenic Lung Cancer Therapy

        Shanhu Hao,Ying Yan,Xue Ren,Ying Xu,Lanlan Chen,Haibo Zhang 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.3

        A multifunctional polymer-drug conjugate candesartan-graft-polyethyleneimine (CD-PEI, CP) containing low molecular weight polyethyleneimine (PEI) and candesartan (CD) conjugated via an amide bond was fabricated as a co-delivery micelle of drug and siRNA for potential lung cancer therapy. Here, CD as an angiotensin II type 1 receptor blocker rich in imidazole and tetrazole rings was utilized to strengthen endosomal buffering capacity of CP and suppress tumor angiogenesis. The selfassembled CP/siRNA complexes exhibited desirable and homogenous particle size, moderate positive charges, and efficient release of drug and siRNA in vitro. In addition, CD and siRNA could readily detached from nanovectors in tumor cells via an amidase-responsive mechanism and they achieved synergistic anti-angiogenesis efficacy by effectively downregulating the expression of vascular endothelial growth factor (VEGF) mRNA and protein via different pathways in vitro. In vivo investigation on nude mice bearing A549 tumor xenografts revealed that CP/siRNA complexes possessed strong antitumor activity. These findings suggested that CP could be an ideal nanovector for simultaneous transfer of drug and siRNA, and a multifunctional CP/siRNA co-delivery system with enhanced endosomal buffering capacity, amidase-responsive drug release and synergistic anti-angiogenesis efficacy might be a new promising strategy for effective lung cancer therapy.

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        Hydrophilic Finishing of PET Fabrics by Applying Chitosan and the Periodate Oxidized β-cyclodextrin for Wash Resistance Improvement

        Chaoqian Lou,Yuanyuan Yin,Xiuzhi Tian,Haibo Deng,Yingxia Wang,Xue Jiang 한국섬유공학회 2020 Fibers and polymers Vol.21 No.1

        β-cyclodextrin (β-CD) was oxidized by sodium periodate to yield a mixture of dialdehyde oligosaccharides. Theperiodate-oxidized β-CD (O-β-CD) together with chitosan (CTS) was firstly used to finish poly(ethylene terephthalate)(PET) fabrics by immersion-padding method, in which O-β-CD acted as a hydrophilic finishing agent plus a cross-linker. Theprocesses including the periodate oxidization of β-CD and the CTS/O-β-CD hydrophilic finishing of PET fabrics were ecofriendly. The results from the hydroxylamine hydrochloride titration showed that the aldehyde content in O-β-CD was3.0 mmol/g. With increasing the CTS/O-β-CD mass ratio, the finished fabric had better hydrophilic properties. When theCTS/O-β-CD mass ratio was 1:1, the moisture regain and water drops wetting time of the finished fabric reached 1.85 % and5.06 s, respectively. They became 1.50 % and 5.70 s, respectively after 25 times of laundering cycle. The occurrence of crosslinkingbetween O-β-CD and CTS was confirmed by the gel test and FT-IR characterization. The cross-linking networkdeposited on the fiber surface brought on excellent wash resistance of the CTS/O-β-CD finished PET fabrics.

      • KCI등재

        Modification of Wool via Grafting β-cyclodextrin Oxidized by Sodium Periodate

        Chaoqian Lou,Yuanyuan Yin,Xiuzhi Tian,Haibo Deng,Yingxia Wang,Xue Jiang 한국섬유공학회 2020 Fibers and polymers Vol.21 No.8

        The modification of wool fabrics is significant in preparation of functional textiles. Sodium periodate oxidized β-cyclodextrin was grafted onto wool fabric through Schiff base reaction to obtain fabric with controlled release property. β-cyclodextrin was oxidized to aldehyde-β-cyclodextrin, and the results show that the inclusion constant and aldehyde contentof aldehyde-β-cyclodextrin are varied with the reaction parameters such as molar ratio of reaction agents and the reactiontemperature. The degree of oxidation was confirmed by ion chromatography. The drug loading test shows that the oxidizedcyclodextrin still had inclusion ability towards phenolphthalein, while the inclusion constant was only 50 % of the original β-CD. The ATR-FTIR spectra proved the occurrence of grafting reaction between the aldehyde groups of aldehyde-β-cyclodextrin and the amino groups on wool fiber. The aldehyde-β-cyclodextrin grafted wool fabric show great washingdurability even after 5 washing cycles. Compared with the aldehyde-β-cyclodextrin power, the inclusion ability of aldehyde-β-cyclodextrin fixed on the wool fiber decreased by 60 %.

      • KCI등재

        The Correlation between Thyrotropin and Dyslipidemia in a Population-based Study

        Li Lu,Beibei Wang,Zhongyan Shan,Fengwei Jiang,Xiaochun Teng,Yanyan Chen,Yaxin Lai,Jiani Wang,Haibo Xue,Sen Wang,Chenyan Li,He Liu,Ningna Li,Jiashu Yu,Liangfeng Shi,Xin Hou,Qian Xing,Xue Bai,Weiping Te 대한의학회 2011 Journal of Korean medical science Vol.26 No.2

        This study investigated the relationship between serum thyrotrophin levels and dyslipidemia in subclinical hypothyroid and euthyroid subjects. A total of 110 subjects with subclinical hypothyroidism and 1,240 euthyroid subjects enrolled in this study. Patients with subclinical hypothyroidism had significantly lower high density lipoprotein cholesterol (HDL-C) levels than those who were euthyroid. The lipid profiles were each categorized and mean thyrotrophin levels were higher in subjects in the dyslipidemia subclasses than subjects in the normal subclasses. Thyrotrophin was positively associated with serum triglyceride and negatively associated with serum HDL-C in women. Thyrotrophin was also positively associated with total cholesterol (TC) in the overweight population along with TC and LDL-C in overweight women. In the euthyroid population, thyrotrophin was positively associated with TC in the overweight population. In conclusion, serum thyrotrophin was correlated with dyslipidemia in subclinical hypothyroid and euthyroid subjects; the correlation was independent of insulin sensitivity.

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