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1. Mixed ligand system of cysteine and thioglycolic acid assisting in the synthesis of highly luminescent water-soluble CdTe nanorods

Author:
Xia Hong,   et al.   ; Jun Li; Di Li; Kui Zhao; Lin Wang; Hongzhe Wang; Zuliang Du; Jinghong Li; Yubai Bai; Tiejin Li;     Show all 10 Authors
Source:
Chemical communications 2004 v. no.15 pp. 1740-1741
ISSN:
1364-548X
Subject:
chemical reactions; cysteine; ligands; nanorods; photoluminescence; water solubility
Abstract:
... Highly luminescent water-soluble CdTe nanorods were prepared with the assistance of the mixed ligand system of cysteine and thioglycolic acid; the aspect ratio and photoluminescence of the CdTe nanorods could be controlled by the refluxing time. ...
DOI:
10.1039/b405623j

2. Unique structure and photoluminescence of Au/CdTe nanostructure materials

Author:
Xia Hong,   et al.   ; Jun Li; Di Li; Lin Wang; Kui Zhao; Jinghong Li; Yubai Bai; Tiejin Li;     Show all 8 Authors
Source:
Chemical communications 2004 v. no.8 pp. 982-983
ISSN:
1364-548X
Subject:
chemical reactions; gold; nanocrystals; nanogold; photoluminescence
Abstract:
... Unique nanostructure materials with highly ordered spherical aggregates have been obtained by self-organization of single CdTe nanocrystals using gold nanoparticles as seeds, and a red shift of the photoluminescence peak was observed. ...
DOI:
10.1039/b314664b

3. An extracellular poly (3-hydroxybutyrate) depolymerase from Penicillium sp. DS9713a-01

Author:
Xia, Hong-Mei,   et al.   ; Su-Qin, Ci; Shan, Chen; Liu, Dong-Bo;     Show all 4 Authors
Source:
World journal of microbiology & biotechnology 2006 v.22 no.7 pp. 729-735
ISSN:
0959-3993
Subject:
3-hydroxybutyric acid; Penicillium; agarose; ammonium sulfate; carbon; chromatography; culture media; enzyme activity; filtration; mass spectrometry; metal ions; molecular weight; mutagenesis; mutants; pH; polyacrylamide gel electrophoresis; temperature
Abstract:
... Penicillium sp. DS9713a-01 was obtained by ultraviolet (u.v.) light mutagenesis from the Penicillium sp. DS9713a which can degrade poly (3-hydroxybutyrate) (PHB). The enzymatic activity of DS9713a-01 was 97% higher than that of the wild-type strain. The DS9713a-01 mutant could completely degrade PHB films in 5 days; however, the wild-type strain achieved only 61% at the same time. The extracellula ...
DOI:
10.1007/s11274-005-9098-9

4. Preparation of a durable superhydrophobic membrane by electrospinning poly (vinylidene fluoride) (PVDF) mixed with epoxy–siloxane modified SiO₂ nanoparticles: A possible route to superhydrophobic surfaces with low water sliding angle and high water contact angle

Author:
Xia Hong,   et al.   ; Shuai Wang; Yapeng Li; Xiaoliang Fei; Mingda Sun; Chaoqun Zhang; Yaoxian Li; Qingbiao Yang;     Show all 8 Authors
Source:
Journal of colloid and interface science 2011 v.359 no.2 pp. 380-388
ISSN:
0021-9797
Subject:
composite polymers; contact angle; durability; hydrophobicity; nanoparticles; roughness; silica; wettability
Abstract:
... A durable superhydrophobic surface with low water sliding angle (SA) and high water contact angle (CA) was obtained by electrospinning poly (vinylidene fluoride) (PVDF) which was mixed with epoxy–siloxane modified SiO₂ nanoparticles. To increase the roughness, modified SiO₂ nanoparticles were introduced into PVDF precursor solution. Then in the electrospinning process, nano-sized SiO₂ particles ir ...
DOI:
10.1016/j.jcis.2011.04.004

5. Involvement of IGF-I signaling pathway in the regulation of steroidogenesis in mouse Leydig cells treated with fenvalerate

Author:
Xia Hong,   et al.   ; Jian-Hua Qu; Juan Fei; Jian-Feng Chen; Ai-Hua Gu; Hong Sun; Xiao-Lin Xu; Ling Song; Shou-Lin Wang; Xin-Ru Wang;     Show all 10 Authors
Source:
Toxicology 2012 v.292 no.2-3 pp. 151-155
ISSN:
0300-483X
Subject:
Leydig cells; fenvalerate; insulin-like growth factor I; messenger RNA; mice; mitogen-activated protein kinase; phosphorylation; progesterone; secretion; signal transduction; steroid hormones; steroidogenesis; toxicology
Abstract:
... Exposure to fenvalerate has been shown to be associated with decreased steroid hormone production by mouse Leydig tumor cells (MLTC-1) in our previous study and the interference with cAMP–PKA pathway cannot explain this inhibitory effect completely. In this study, the same cell line was used to investigate the potential involvement of insulin-like growth factor I (IGF-I) signaling pathway in the d ...
DOI:
10.1016/j.tox.2011.12.007

6. A, D-seco-Limonoids from the Stems of Clausena emarginata

Author:
Xia Hong-Min,   et al.   ; Li Chuang-Jun; Yang Jing-Zhi; Ma Jie; Chen Xiao-Guang; Zhang Dan; Li Li; Zhang Dong-Ming;     Show all 8 Authors
Source:
Journal of natural products 2014 v.77 no.4 pp. 784-791
ISSN:
1520-6025
Subject:
Clausena; X-ray diffraction; inhibitory concentration 50; nitric oxide; spectroscopy; stems
Abstract:
... Twelve new A,D-seco-limonoids, clauemargines A–L (1–12), and three known analogues were isolated from the stems of Clausena emarginata. The absolute configurations of 1 and 5 were confirmed by X-ray crystallography and ECD spectroscopy, respectively. Compounds 1, 2, 8–10, and 13 showed moderate inhibitory effects on LPS-induced NO production (IC₅₀ values < 10 μM). ...
DOI:
10.1021/np400797s

7. Chk1, but not Chk2, is responsible for G2/M phase arrest induced by diallyl disulfide in human gastric cancer BGC823 cells

Author:
Xia Hong,   et al.   ; Su Bo; He Hui; Wang Li; Ling Hui; Dong Lin; Wen-Xiang Dai; You-Hua Wu; Xiao-Hong Ai; Jiang Hao; Su Qi;     Show all 11 Authors
Source:
Food and chemical toxicology 2014 v.68 pp. 61-70
ISSN:
0278-6915
Subject:
cell cycle checkpoints; cyclins; diallyl disulfide; gene expression; gene expression regulation; genes; humans; neoplasm cells; phosphorylation; small interfering RNA; stomach neoplasms; toxicology
Abstract:
... Diallyl disulfide (DADS) has been shown to cause G2/M phase cell cycle arrest in several human cancers. Here we demonstrate a mechanism by which DADS induces G2/M phase arrest in BGC823 human gastric cancer cells via Chk1. From cell cycle gene array results, we next confirmed that cyclin B1 expression was decreased by DADS, while the expression of p21, GADD45α and p53 were increased. Despite the l ...
DOI:
10.1016/j.fct.2014.03.007

8. Facile fabrication of 3D SnO₂/nitrogen-doped graphene aerogels for superior lithium storage

Author:
Xia Hong,   et al.   ; Junfei Liang; Hua Fan; Lin Guo;     Show all 4 Authors
Source:
RSC advances 2015 v.5 no.84 pp. 68822-68828
ISSN:
2046-2069
Subject:
aerogels; anodes; electrochemistry; ethylenediamines; graphene; graphene oxide; lithium; lithium batteries; nanoparticles; nitrogen; tin dioxide
Abstract:
... A facile approach to synthesize 3D SnO₂/nitrogen-doped graphene aerogels (SNGA) was developed. By using ethylenediamine (EDA) as nitrogen source, combined with hydrothermal-induced reduction and self-assembly, the reduction of graphene oxide (GO) to graphene, the uniform in situ deposition of SnO₂ nano-particles on graphene, the nitrogen-doping of graphene, and the self-assembly of graphene to 3D ...
DOI:
10.1039/c5ra10475k

9. Cationic porphyrin@SPION nanospheres as multifunctional anticancer therapeutics: magnetic targeting, photodynamic potential and bio-safety research

Author:
Xia-Hong Wang,   et al.   ; Ping Zhao; Min-Chao Liu; Thushara W. Madanayake; Chawla Reena; Min Zheng; Zhen-Feng Cheng; Yu-Min Huang;     Show all 8 Authors
Source:
RSC advances 2016 v.6 no.105 pp. 103137-103148
ISSN:
2046-2069
Subject:
antineoplastic agents; drug design; human cell lines; inhibitory concentration 50; iron oxides; irradiation; light; magnetic fields; nanoparticles; nanospheres; neoplasms; pH; photosensitivity; porphyrins
Abstract:
... The synthesis and characterization of carboxyl-functionalized superparamagnetic iron oxide nanoparticles (SPION)-attached cationic porphyrins with different positive charges (porphyrin@SPION) are described as pH-sensitive, multifunctional photosensitization. These nanospheres exhibit excellent targeted cell accumulation under external magnetic field and outstanding cell photocytotoxicity in weak a ...
DOI:
10.1039/c6ra19697g

10. Magnetic-bead-based sub-femtomolar immunoassay using resonant Raman scattering signals of ZnS nanoparticles

Author:
Xia Hong,   et al.   ; Yadan Ding; Tie Cong; Xueying Chu; Yan Jia; Yichun Liu;     Show all 6 Authors
Source:
Analytical and bioanalytical chemistry 2016 v.408 no.18 pp. 5013-5019
ISSN:
1618-2642
Subject:
Raman spectroscopy; antibodies; bacteria; detection limit; diagnostic techniques; electrochemistry; environmental factors; environmental monitoring; enzyme-linked immunosorbent assay; explosives; food safety; humans; immunoglobulin G; iron oxides; labor; nanocrystals; nanoparticles; quantum dots
Abstract:
... Highly sensitive, specific, and selective immunoassays are of great significance for not only clinical diagnostics but also food safety, environmental monitoring, and so on. Enzyme-linked immunosorbent assays and fluorescence-based and electrochemical immunoassays are important intensively investigated immunoassay techniques. However, they might suffer from low sensitivity or false-positive result ...
DOI:
10.1007/s00216-016-9601-1

11. Synthesis of 2-Alkenylquinoline by Reductive Olefination of Quinoline N-Oxide under Metal-Free Conditions

Author:
Xia Hong,   et al.   ; Liu Yuanhong; Zhao Peng; Gou Shaohua; Wang Jun;     Show all 5 Authors
Source:
Organic letters 2016 v.18 no.8 pp. 1796-1799
ISSN:
1523-7052
Subject:
chemical structure; cycloaddition reactions; quinoline
Abstract:
... Synthesis of 2-alkenylquinoline by reductive olefination of quinoline N-oxide under metal-free conditions is disclosed. Practically, the reaction could be performed with quinoline as starting material via a one-pot, two-step process. A possible mechanism is proposed that involves a sequential 1,3-dipolar cycloaddition and acid-assisted ring opening followed by a dehydration process. ...
DOI:
10.1021/acs.orglett.6b00522

12. BODIPY-Based Fluorescent Sensor for the Recognization of Phosgene in Solutions and in Gas Phase

Author:
Xia Hong-Cheng,   et al.   ; Xu Xiang-Hong; Song Qin-Hua;     Show all 3 Authors
Source:
Analytical chemistry 2017 v.89 no.7 pp. 4192-4197
ISSN:
1520-6882
Subject:
chlorides; colorimetry; ethylene oxide; fluorescence; fluorescent dyes; gases; monitoring; nerve agents; occupational accidents; paper; polyethylene glycol; toxicity
Abstract:
... As a highly toxic and widely used chemical, phosgene has become a serious threat to humankind and public security because of its potential use by terrorists and unexpected release during industrial accidents. For this reason, it is an urgent need to develop facile, fast, and selective detection methods of phosgene. In this Article, we have constructed a highly selective fluorescent sensor o-Pab fo ...
DOI:
10.1021/acs.analchem.7b00203

13. Biocompatible and Biodegradable Bioplastics Constructed from Chitin via a “Green” Pathway for Bone Repair

Author:
Xia Hong,   et al.   ; He Meng; Wang Xiaolan; Wang Zhenggang; Chen Lingyun; Lu Yao; Zhang Xinjiang; Li Mei; Liu Zhongming; Zhang Yu; Zhang Lina;     Show all 11 Authors
Source:
ACS sustainable chemistry 2017 v.5 no.10 pp. 9126-9135
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; biocompatibility; biodegradability; bioplastics; bones; cell adhesion; chitin; drying; hydrogels; hydroxyapatite; nuclear magnetic resonance spectroscopy; osteoblasts; plastic deformation; scanning electron microscopy; sodium hydroxide; solvents; surgery; tensile strength; tissue engineering; urea; viability
Abstract:
... Biodegradable plastics are urgently needed in the biomedical field to avoid the secondary surgery for implants after completing the repair of nonload bearing bone defects. Herein, novel chitin based plastics were successfully fabricated by changing the shape and aggregation state structure of chitin hydrogels through drying under a negative pressure, which led to a plastic deformation. The chitin ...
DOI:
10.1021/acssuschemeng.7b02051

14. Dual-mode immunoassay based on shape code and infrared absorption fingerprint signals of silica nanorods

Author:
Xia Hong,   et al.   ; Pengfei Zhao; Ran Ni; Kexin Wang; Yadan Ding; Tie Cong; Junping Liu; Huiying Zhao;     Show all 8 Authors
Source:
Analytical and bioanalytical chemistry 2017 v.409 no.17 pp. 4207-4213
ISSN:
1618-2642
Subject:
absorption; ammonia; bacteria; catalysts; detection limit; explosives; humans; hydrolysis; immunoassays; immunoglobulin G; models; nanorods; nucleic acids; polyvinylpyrrolidone; silica; toxins; viruses
Abstract:
... Silica nanorods were synthesized through a simple one-pot emulsion-droplet-based growth method, in which tetraethylorthosilicate (TEOS) was used as the silica source, ammonia as the catalyst, and polyvinylpyrrolidone (PVP) as the structure-directing agent and stabilizer. By controlling hydrolysis and condensation in the reaction process, we regulated the aspect ratios and the infrared (IR) absorpt ...
DOI:
10.1007/s00216-017-0369-8

15. Hierarchical Microspheres Constructed from Chitin Nanofibers Penetrated Hydroxyapatite Crystals for Bone Regeneration

Author:
Xia Hong,   et al.   ; Duan Bo; Shou Kangquan; Su Xiaojuan; Niu Yahui; Zheng Guan; Huang Yao; Yu Aixi; Zhang Yu; Zhang Lina;     Show all 10 Authors
Source:
Biomacromolecules 2017 v.18 no.7 pp. 2080-2089
ISSN:
1526-4602
Subject:
adhesion; biodegradability; cell adhesion; chitin; crabs; crystals; hydroxyapatite; microstructure; nanofibers; rabbits; shrimp
Abstract:
... Chitin exists abundantly in crab and shrimp shells as the template of the minerals, which inspired us to mineralize it for fabricating bone grafting materials. In the present work, chitin nanofibrous microspheres were used as the matrix for in situ synthesis of hydroxyapatite (HA) crystals including microflakes, submicron-needles, and submicron-spheres, which were penetrated by long chitin nanofib ...
DOI:
10.1021/acs.biomac.7b00408

16. Shedding lights on the flexible-armed porphyrins: Human telomeric G4 DNA interaction and cell photocytotoxicity research

Author:
Xia-hong Wang,   et al.   ; Xiang-Yu Sun; Ping Zhao; Shu-fang Jin; Min-Chao Liu; Yu-min Huang; Zhen-feng Cheng; Si-Qi Yan; Yan-Yu Li; Ya-Qing Chen; Yan-Mei Zhong;     Show all 11 Authors
Source:
Journal of photochemistry and photobiology 2017 v.173 pp. 606-617
ISSN:
1011-1344
Subject:
DNA; antineoplastic agents; apoptosis; carbon; humans; ligands; mitochondria; molecular models; neoplasms; porphyrins; telomeres
Abstract:
... DNA polymorphism exerts a fascination on a large scientific community. Without crystallographic structural data, clarification of the binding modes between G-quadruplex (G4) and ligand (complex) is a challenging job. In the present work, three porphyrin compounds with different flexible carbon chains (arms) were designed, synthesized and characterized. Their binding, folding and stabilizing abilit ...
DOI:
10.1016/j.jphotobiol.2017.06.036

17. Simultaneous determination of β2-agonists clenbuterol and salbutamol in water and swine feed samples by dual-labeled time-resolved fluoroimmunoassay

Author:
Xia Hong,   et al.   ; Ming Li; Yuanyuan Zhang; Yonglai Xue; Yin Cui; Zhenjiang Liu; Daolin Du;     Show all 7 Authors
Source:
Food control 2017 v.73 pp. 1039-1044
ISSN:
0956-7135
Subject:
clenbuterol; detection limit; europium; fluorescence; fluorescent antibody technique; fluorescent dyes; goats; high performance liquid chromatography; immunoglobulin G; inhibitory concentration 50; ions; samarium; statistical analysis; swine
Abstract:
... Lanthanide ions, the excellent fluorescence markers, have the potential to simplify the performance of multi-analytes analysis. In this work, a powerful time-resolved fluoroimmunoassay (TRFIA) based on dual-labeled format were performed for detecting clenbuterol and salbutamol simultaneously in water and swine feed samples. Europium (Eu3+)-labeled goat anti-mouse IgG and Samarium (Sm3+)-labeled go ...
DOI:
10.1016/j.foodcont.2016.10.019

18. Development of a reversed dispersive based graphene functionalized with multiwalled carbon nanotubes for detection of β2-agonists in pork by high-performance liquid chromatography

Author:
Xia Hong,   et al.   ; Ying-Wen Qian; Cai-Xia Yuan; Xin-Kui Zhou; Hai-Ning He; Dong-Shuai Wang;     Show all 6 Authors
Source:
Food science and human wellness 2018 v.7 no.2 pp. 163-169
ISSN:
2213-4530
Subject:
carbon nanotubes; detection limit; food science; graphene; high performance liquid chromatography; nanocomposites; pork; sorbents; storage; storage quality
Abstract:
... A reliable and inexpensive pretreatment procedure in the determination of β2-agonists in pork was developped. The procedure used a nanocomposite of multiwalled carbon nanotubes (CNTs) functionalized with graphene (rGO) as the reversed dispersive sorbent. It was analyzed after purification by high-performance liquid chromatography, the extraction time and the properties of the nanocomposite were op ...
DOI:
10.1016/j.fshw.2018.03.002

19. Enhanced Piezoelectric Response in Hybrid Lead Halide Perovskite Thin Films via Interfacing with Ferroelectric PbZr0.2Ti0.8O3

Author:
Xia Hong,   et al.   ; Jingfeng Song; Zhiyong Xiao; Bo Chen; Spencer Prockish; Xuegang Chen; Anil Rajapitamahuni; Le Zhang; Jinsong Huang;     Show all 9 Authors
Source:
ACS applied materials & interfaces 2018 v.10 no.22 pp. 19218-19225
ISSN:
1944-8252
Subject:
films (materials); gold; indium tin oxide; microscopy; screening
Abstract:
... We report a more than 10-fold enhancement of the piezoelectric coefficient d₃₃ of polycrystalline CH₃NH₃PbI₃ (MAPbI₃) films when interfacing them with ferroelectric PbZr₀.₂Ti₀.₈O₃ (PZT). Piezoresponse force microscopy (PFM) studies reveal d33MAPbI3 values of 0.3–0.4 pm/V for MAPbI₃ deposited on Au, indium tin oxide, and SrTiO₃ surfaces, with small phase angle fluctuating at length scales smaller t ...
DOI:
10.1021/acsami.8b03403

20. Immunomagnetic bead-based biotin-streptavidin system for highly efficient detection of aflatoxin B₁ in agricultural products

Author:
Xia Hong,   et al.   ; Ming Li; Yuanyuan Zhang; Rujin Zhao; Zhenjiang Liu; Yin Cui; Yonglai Xue; Daolin Du;     Show all 8 Authors
Source:
RSC advances 2018 v.8 no.46 pp. 26029-26035
ISSN:
2046-2069
Subject:
aflatoxin B1; agricultural products; detection limit; enzyme-linked immunosorbent assay; food safety; inhibitory concentration 50; screening; standard deviation
Abstract:
... The potential homogeneous assay employing immunomagnetic beads (IMB) has been receiving attention as a screening tool in food-safety control; the method is simple, efficient, and does not require long incubation times or complex separation steps. In this study, a homogeneous immunoassay has been successfully developed and applied in the determination of aflatoxin B₁ (AFB₁) contamination in agricul ...
DOI:
10.1039/c8ra04460k