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1. Neuroprotective and free radical scavenging activities of phenolic compounds fromHovenia dulcis

Author:
Zheng, Changji,   et al.   ; Li, Gao; Min, Byung-Sun; Lee, Joongku; Oh, Sei-Ryang; Ahn, Kyung-Seop; Lee, Hyeong-Kyu;     Show all 7 Authors
Source:
Archives of pharmacal research 2005 v.28 no.7 pp. 804-809
ISSN:
0253-6269
Subject:
ferulic acid; free radical scavengers; inhibitory concentration 50; mice; neuroprotective effect; neurotoxicity; superoxide anion; vanillic acid
Abstract:
... The EtOAc-soluble fraction from a methanolic extract ofHovenia dulcis Thunb. exhibited neuroprotective activity against glutamate-induced neurotoxicity in mouse hippocampal HT22 cells. The neuroprotective activity-guided isolation resulted in 8 phenolic compounds (1–8), such as vanillic acid (1), ferulic acid (2), 3,5-dihydroxystilbene (3), (+)-aromadendrin (4), methyl vanillate (5), (-)-catechin ...
DOI:
10.1007/BF02977346

2. Graphene/nanosized silicon composites for lithium battery anodes with improved cycling stability

Author:
Zou, Changji,   et al.   ; Xiang, Hongfa; Zhang, Kai; Ji, Ge; Lee, Jim Yang; Chen, Xiaodong; Wu, Jishan;     Show all 7 Authors
Source:
Carbon 2011 v.49 no.5 pp. 1787-1796
ISSN:
0008-6223
Subject:
absorption; aqueous solutions; batteries; electrodes; graphene; heat treatment; lithium; silicon
Abstract:
... Graphene/nanosized silicon composites were prepared and used for lithium battery anodes. Two types of graphene samples were used and their composites with nanosized silicon were prepared in different ways. In the first method, graphene oxide (GO) and nanosized silicon particles were homogeneously mixed in aqueous solution and then the dry samples were annealed at 500°C to give thermally reduced GO ...
DOI:
10.1016/j.carbon.2011.01.002

3. The Effect of Green Tea Extract and EGCG on the Signaling Network in Squamous Cell Carcinoma

Author:
Yuan, Changji,   et al.   ; Liu, Xiaoliang; Zhang, David Y.; Zhang, Wiley; Zhao, Xin; Ye, Fei;     Show all 6 Authors
Source:
Nutrition and cancer 2011 v.63 no.3 pp. 466-475
ISSN:
1532-7914
Subject:
analysis of variance; anticarcinogenic activity; cell growth; chemoprevention; green tea; humans; phosphorylation; protein synthesis; proteins; proteomics; signal transduction; squamous cell carcinoma
Abstract:
... Green tea and its major active component, epigallocatechin-3-gallate (EGCG), have been reported to have anticancer activity on various cancers. However, the exact molecular mechanism of its anticancer activity is still not well understood. We investigated the anticancer activity of green tea extract (GTE) and EGCG on 3 human squamous carcinoma cell lines (CAL-27, SCC-25, and KB) in vitro. We also ...
DOI:
10.1080/01635581.2011.532901
PubMed:
21391127

4. Tunable circular polarization conversion and asymmetric transmission of planar chiral graphene-metamaterial in terahertz region

Author:
Liu, Changji,   et al.   ; Huang, Yuanyuan; Yao, Zehan; Hu, Fangrong; Yu, Leilei; Jin, Yanping; Xu, Xinlong;     Show all 7 Authors
Source:
Carbon 2017 v.119 pp. 305-313
ISSN:
0008-6223
Subject:
energy; graphene; stereoisomerism
Abstract:
... Two-dimensional chirality induced polarization conversion and asymmetric transmission have great potential for polarization applications. We propose graphene-based planar chiral metamaterial and its complementary structure with dual functionality of both circular polarization conversion and asymmetric transmission in terahertz (THz) region. The conversion efficiency of chiral structure can reach u ...
DOI:
10.1016/j.carbon.2017.04.037

5. Direct Growth of Graphene on Fused Quartz by Atmospheric Pressure Chemical Vapor Deposition with Acetylene

Author:
Liu, Changji,   et al.   ; Wang, Huan; Zhou, Yixuan; Qi, Mei; Xu, Xinlong; Ren, Zhaoyu;     Show all 6 Authors
Source:
Journal of physical chemistry 2018 v.123 no.4 pp. 2370-2377
ISSN:
1932-7455
Subject:
Raman spectroscopy; acetylene; argon (noble gases); atmospheric pressure; catalytic activity; graphene; hydrogen; physical chemistry; quartz; scanning electron microscopes; transmission electron microscopes; vapors; wavelengths
Abstract:
... Direct growth of graphene on target substrates is significant for many optoelectronic applications. A direct growth method of graphene on fused quartz by atmospheric pressure chemical vapor deposition with acetylene as carbon source has been proposed. The functions of growth parameters have been studied by Raman spectroscopy, scanning electron microscope and transmission electron microscope. Large ...
DOI:
10.1021/acs.jpcc.8b08806

6. Understanding the Lithium Storage Mechanism of Ti₃C₂Tₓ MXene

Author:
Li, Changji,   et al.   ; Cheng, Renfei; Hu, Tao; Zhang, Hui; Wang, Chunmei; Hu, Minmin; Yang, Jinxing; Cui, Cong; Guang, Tianjia; Shi, Chao; Hou, Pengxiang; Wang, Xiaohui;     Show all 12 Authors
Source:
Journal of physical chemistry 2018 v.123 no.2 pp. 1099-1109
ISSN:
1932-7455
Subject:
lithium batteries; physical chemistry; lithium; X-ray diffraction; anodes
Abstract:
... MXenes, as an emerging family of conductive two-dimensional materials, hold promise for late-model electrode materials in Li-ion batteries. A primary challenge hindering the development of MXenes as electrode materials is that a complete understanding of the intrinsic storage mechanism underlying the charge/discharge behavior remains elusive. This article presents two key discoveries: first, the c ...
DOI:
10.1021/acs.jpcc.8b10790

7. Huachansu suppresses TRPV1 up-regulation and spinal astrocyte activation to prevent oxaliplatin-induced peripheral neuropathic pain in rats

Author:
Fang, Changji,   et al.   ; Hao, Yue; Luo, Xinxin; Ba, Xiyuan; Wang, Jiali; Zhou, Shiyang; Yang, Shimin; Jiang, Changyu; Sun, Wuping;     Show all 9 Authors
Source:
Gene 2019 v.680 pp. 43-50
ISSN:
0378-1119
Subject:
adverse effects; analgesic effect; animal models; astrocytes; drug therapy; hypersensitivity; pain; protective effect; rats; toads; transient receptor potential vanilloid channels; China
Abstract:
... Chemotherapy-induced peripheral neuropathic pain (CIPNP) is a major dose- and therapy-limiting side effect that is particularly difficult to treat. Huachansu, an aqueous extract from toad skin, is a widely used anti-cancer natural product in China. Clinical findings have established the safety and effectiveness of Huachansu in combination with chemotherapy to promote the therapeutic efficacy while ...
DOI:
10.1016/j.gene.2018.09.035

8. Composition evolution and coalescence behavior of titanium oxide particles in Iron-Nickel binary alloy melt

Author:
Xuan, Changji,   et al.   ; Mu, Wangzhong;     Show all 2 Author
Source:
Journal of materials science 2019 v.54 no.11 pp. 8684-8695
ISSN:
0022-2461
Subject:
alloys; aluminum oxide; mechanical properties; melting; process control; titanium; titanium dioxide
Abstract:
... Particle coalescence refers to the dispersed particles in a suspension sticking to each other through the random collisions. This phenomenon is of vital importance for the process control and mechanical property of the metallic materials, such as Iron–Nickel binary alloy. The present work performed a fundamental study of the composition evolution and coalescence behavior of the Ti-oxide particles ...
DOI:
10.1007/s10853-019-03458-z

9. Photoluminescence Oscillations in LEDs Arise from Cylinder-like Nanostructures Fabricated by a Femtosecond Laser

Author:
Pan, Changji,   et al.   ; Xie, Yuduo; Sun, Jingya; Jiang, Lan; Wang, Qingsong; Wang, Feifei;     Show all 6 Authors
Source:
Journal of physical chemistry 2019 v.123 no.29 pp. 18056-18060
ISSN:
1932-7455
Subject:
gallium; irradiation; light emitting diodes; nanomaterials; nitrides; optical fibers; photoluminescence; physical chemistry; refractive index
Abstract:
... Fabry–Pérot interference has been employed in optical fibers, sensors, electron optics, and so on. The photoluminescence (PL) spectra of a gallium nitride (GaN)-based light-emitting diode (LED), which were irradiated using various femtosecond (fs)-laser fluences, were studied. Notably, the interesting oscillation of PL was observed on the LED under irradiation with specific fs-laser fluence. The ...
DOI:
10.1021/acs.jpcc.9b03939

10. Remarkably enhanced performance of the metathesis reaction of ethylene and 1-butene to propene using one-step prepared W-MCM-41 catalysts

Author:
Wang, Changji,   et al.   ; Jiang, Feng; Zuo, Guangzheng; Liu, Bing; Li, Hanxu; Liu, Xiaohao;     Show all 6 Authors
Source:
RSC advances 2019 v.9 no.69 pp. 40618-40627
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; active sites; catalysts; catalytic activity; ethylene; isomerization; mixing; propylene; silicon; transmission electron microscopy; tungsten oxide; tungstic acids
Abstract:
... Highly dispersed tungsten species with an isolated tetrahedral WOₓ species structure are substantially beneficial for the metathesis reaction of ethylene and 1-butene to propene. The conventional impregnation method always leads to the formation of inactive crystalline WO₃ thereby notably decreasing the amount of active sites. In this study, we synthesized a highly dispersed W-MCM-41 catalyst usin ...
DOI:
10.1039/c9ra08646c

11. In Situ Passivation on Rear Perovskite Interface for Efficient and Stable Perovskite Solar Cells

Author:
Li, Changji,   et al.   ; Wang, Gaoxiang; Wang, Lipeng; Qiu, Jianhang; Yan, Zheng; Dai, Chunli; Zhen, Chao; Tai, Kaiping; Yu, Wei; Jiang, Xin;     Show all 10 Authors
Source:
ACS applied materials & interfaces 2020 v.12 no.6 pp. 7690-7700
ISSN:
1944-8252
Subject:
equipment performance; hysteresis; phenolic compounds; solar cells; solar energy
Abstract:
... Despite the rocketing rise in power conversion efficiencies (PCEs), the performance of perovskite solar cells (PSCs) is still limited by the carrier transfer loss at the interface between perovskite (PVSK) absorbers and charge transporting layers. Here, we propose a novel in situ passivation strategy by using [6,6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) to improve the charge dynamics at the r ...
DOI:
10.1021/acsami.9b18572

12. Surface-modified paper-based SERS substrates for direct-droplet quantitative determination of trace substances

Author:
Wu, Changji,   et al.   ; Xian, Li; You, Ruiyun; Lu, Dechan; Feng, Shangyuan; Lu, Yudong;     Show all 6 Authors
Source:
Cellulose 2020 v.27 no.3 pp. 1483-1495
ISSN:
0969-0239
Subject:
cellulose; detection limit; hydrophobicity; metronidazole; nanocrystals; nanoparticles; nanosilver; paper; quantitative analysis; sensors (equipment)
Abstract:
... In this study, we developed a simple, inexpensive and easily fabricable paper-based SERS substrate with high sensitivity and reproducibility. The filter paper has natural pleats and small pores that allow the metal nanoparticles to be deposited and arranged on the paper to form large area SERS ‘active sites’. Silver nanoparticles can be embedded and grown on cellulose nanocrystals framework throug ...
DOI:
10.1007/s10570-019-02855-6

13. Tetraethylenepent-MAPbI₃–ₓClₓ Unsymmetrical Structure-Enhanced Stability and Power Conversion Efficiency in Perovskite Solar Cells

Author:
Gao, Changji,   et al.   ; Huang, Jin; Zhang, Dan; Ding, Lei; Zhang, Fanghui;     Show all 5 Authors
Source:
ACS applied materials & interfaces 2020 v.12 no.9 pp. 11224-11231
ISSN:
1944-8252
Subject:
cations; halogens; lighting; solar cells; solar energy
Abstract:
... Two-dimensional (2D) perovskite solar cell (PSC) can achieve high stability by alternating interface cations. However, its main transmissive charge is limited owing to the 2D structure. Therefore, compared with a 3D device, the 2D PSC has poor power conversion efficiency (PCE). Further enhanced performance will require an increase in the transmission dimension of 2D PSC. Here, a novel tetraethylen ...
DOI:
10.1021/acsami.9b22627

14. Bi-Cation Electrolyte for a 1.7 V Aqueous Zn Ion Battery

Author:
Li, Changji,   et al.   ; Li, Na; Li, Guoqing; Yang, Huicong; Qin, Gaowu; Sun, Xudong; Li, Feng; Cheng, Hui-Ming;     Show all 8 Authors
Source:
ACS applied materials & interfaces 2020 v.12 no.12 pp. 13790-13796
ISSN:
1944-8252
Subject:
aluminum; batteries; cathodes; electrochemistry; electrolytes; energy density; manganese dioxide; zinc
Abstract:
... Rechargeable aqueous zinc-ion batteries (ZIBs) are receiving increased attention because of their high safety and low cost. However, their practical application is plagued by their low energy density as a result of low output voltage and a narrow voltage window of aqueous electrolytes. Here, we explored a ZIB with a wider potential window using bication (1 M Al(CF₃SO₃)₃/1 M Zn(CF₃SO₃)₂) as the ele ...
DOI:
10.1021/acsami.9b20531

15. Asymmetric Response Optoelectronic Device Based on Femtosecond-Laser-Irradiated Perovskite

Author:
Pan, Changji,   et al.   ; Lian, Yiling; Jiang, Lan; Sun, Jingya; Jin, Hao; Wang, Mengmeng; Liu, Jia; Wang, Qingsong; Chen, Zhicheng;     Show all 9 Authors
Source:
ACS applied materials & interfaces 2020 v.12 no.14 pp. 17070-17076
ISSN:
1944-8252
Subject:
X-ray diffraction; asymmetry; electronic equipment; irradiation; lighting; photoluminescence; photosensitivity; spectroscopy
Abstract:
... We have explored an asymmetric optoelectronic response of an FAPb(I₀.₈Br₀.₂)₃ (FA = formamidine) perovskite device irradiated by a femtosecond (fs) laser at different laser-fluence values. Photoluminescence (PL) spectra indicated a blue shift from 772 nm (1.606 eV) to 745 nm (1.664 eV) and more than 80% quenching of the irradiated perovskite. The blue shift of the PL spectra can be attributed to c ...
DOI:
10.1021/acsami.0c00763

16. KDA3D: Key-Point Densification and Multi-Attention Guidance for 3D Object Detection

Author:
Liu, Changji,   et al.   ; Wang, Jiarong; Zhu, Ming; Wang, Bo; Sun, Deyao; Wei, Hua; Nie, Haitao;     Show all 7 Authors
Source:
Remote Sensing 2020 v.12 no.11
ISSN:
2072-4292
Subject:
data collection; lidar; remote sensing
Abstract:
... In this paper, we propose a novel 3D object detector KDA3D, which achieves high-precision and robust classification, segmentation, and localization with the help of key-point densification and multi-attention guidance. The proposed end-to-end neural network architecture takes LIDAR point clouds as the main inputs that can be optionally complemented by RGB images. It consists of three parts: part-1 ...
DOI:
10.3390/rs12111895