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RISS 인기검색어
- 검색키워드
- 저자 : Jiawen Lin (검색결과 4 건)
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Study on the detection behavior of defect-rich single-walled carbon nanotubes toward perchlorate
Chen, Yi,Nguyen, Thuy Hang,Zhang, Shao Lin,Zhang, Z.,Yue, Hongyan,Jian, Jiawen,Yang, Woo-Chul World Scientific Publishing Company 2018 Functional materials letters Vol.11 No.2
<P>Defect-rich single-walled carbon nanotubes (SWCNTs) were prepared by a water vapor flow-assisted chemical vapor deposition process. The correlation between defect density and water flow was quantitively studied using Raman spectrum. The detection capabilities of defective SWCNTs films toward perchlorate anions were investigated. It was found the defect-rich SWCNTs could adsorb more perchlorate anions owing to the strong chemical bonding between anions and defective sites. However, the detective response of defective SWCNTs toward perchlorate was not in compliance with anion adsorption. A tradeoff phenomenon between response and adsorption was found as the defect density of SWCNTs increased. This work is expected to provide a guidance to the future design of SWCNTs based ion detector.</P>
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Ma Luo,Sheng Peng,Guang Yang,Letao Lin,Ligong Lu,Jiawen Chen,Fujun Zhang,Fei Gao 대한초음파의학회 2023 ULTRASONOGRAPHY Vol.42 No.1
Purpose: The aim of this study was to compare the effectiveness and outcomes of percutaneous ablation guided by ultrasonography (US) and computed tomography (CT) in colorectal liver oligometastases (CLOM). Methods: This study included patients with CLOM treated with percutaneous ablation from January 2008 to January 2021 in this observational study. Only lesions visualized on both CT and US images were further analyzed according to whether patients’ initial ablation treatments utilized US guidance or CT guidance. The Kaplan-Meier method was used to estimate local tumor progression (LTP)–free survival after propensity score matching (PSM). The LTP-free survival and treatment-related outcomes were compared between these two groups. Results: PSM identified 116 patients from each group, with 269 and 238 lesions in the USguided and CT-guided groups, respectively. US-guided ablation had a shorter average procedure time and lower cost than CT-guided ablation (27.54±12.06 minutes vs. 32.70±13.88 minutes, P=0.003; $2,175.13±618.17 vs. $2,455.49±710.25, P=0.002). For patients >60 years of age, the cumulative LTP rate at 1 year was lower in the US-guided group than in the CT-guided group (17.8% vs. 25.1%, P=0.038). For patients with perivascular liver lesions, the cumulative LTP rate at 1 year was lower in the US-guided group (14.4% vs. 28.2%, P=0.040). Conclusion: For patients whose age is >60 years or who have perivascular liver lesions, USguided ablation is better than CT-guided ablation, with a shorter treatment time and lower costs when both ablation methods are feasible for patients.
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Fei Fan,Xunxin Wu,Jiaxiang Wen,Gengyu Lin,Jiawen Lin,Qiuting Yin 한국섬유공학회 2023 Fibers and polymers Vol.24 No.10
This paper explores the effects of a dielectric barrier discharge atmospheric pressure air plasma and citric acid (CA) pretreatment on dyeing gray mulberry silk plain fabrics with a cortex phellodendri plant powder dyestuff. The atmospheric air plasma treatment formed new hydrophilic groups, such as C-O, O-C=O, and C-NH2, on the surface of the fabric. The relative contents of the C-O (C-N) and O-C=O groups indicated that the efficiency of bonding the hydrophilic groups to the fabric increased in the order of citric acid alone < collaborative treatment in different orders < original < atmospheric air plasma alone. X-ray photoelectron spectroscopy (XPS) showed that the relative content of C-O (C-N)/C=O was the highest after 9 treatments at 360 W. Erosion pits and grooves with widths of 0.5-3 µm appeared on the surface after plasma treatment. The surface of the silk fabric was negatively charged, and it interacted electrostatically, adsorbed and combined with the cationic dye. The samples were dyed at 60 °C, with a pH 8, a 60% (owf) dye concentration, a bath ratio of 1:40, and a 60 min dyeing time. After soaping, the K/S value had increased from 8.05 to 13.51, and the washing color fastness rating was 4-5.
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Zhihua Zheng,Jiasi Chen,Keping Wu,Yan Lei,Mingcheng Huang,Lokyu Cheng,Hui Guan,Jiawen Lin,Ming Zhong,Xiaohua Wang 대한내분비학회 2023 Endocrinology and metabolism Vol.38 No.2
Background: Ferroptosis, which is caused by an iron-dependent accumulation of lipid hydroperoxides, is a type of cell death linked todiabetic kidney disease (DKD). Previous research has shown that fatty acid binding protein 4 (FABP4) is involved in the regulation of ferroptosis in diabetic retinopathy. The present study was constructed to explore the role of FABP4 in the regulation of ferroptosis in DKD. Methods: We first detected the expression of FABP4 and proteins related to ferroptosis in renal biopsies of patients with DKD. Then, we used a FABP4 inhibitor and small interfering RNA to investigate the role of FABP4 in ferroptosis induced by high glucosein human renal proximal tubular epithelial (HG-HK2) cells. Results: In kidney biopsies of DKD patients, the expression of FABP4 was elevated, whereas carnitine palmitoyltransferase-1A (CPT1A), glutathione peroxidase 4, ferritin heavy chain, and ferritin light chain showed reduced expression. In HG-HK2 cells, the induction of ferroptosis was accompanied by an increase in FABP4. Inhibition of FABP4 in HG-HK2 cells changed the redox state, suppressing the production of reactive oxygen species, ferrous iron (Fe2+), and malondialdehyde, increasing superoxide dismutase, and reversing ferroptosis-associated mitochondrial damage. The inhibition of FABP4 also increased the expression of CPT1A, reversed lipiddeposition, and restored impaired fatty acid β-oxidation. In addition, the inhibition of CPT1A could induce ferroptosis in HK2 cells. Conclusion: Our results suggest that FABP4 mediates ferroptosis in HG-HK2 cells by inhibiting fatty acid β-oxidation.
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