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1. Synthesis and antioxidant activities of garlic polysaccharide-Fe(III) complex

Author:
Chen, Xin,   et al.   ; Huang, Gangliang;     Show all 2 Author
Source:
International journal of biological macromolecules 2020 v.145 pp. 813-818
ISSN:
0141-8130
Subject:
antioxidant activity; free radicals; garlic; hydroxyl radicals; infrared spectroscopy; lipid peroxidation; polysaccharides; superoxide anion; synergism; thermogravimetry
Abstract:
... Garlic polysaccharide-Fe(III) complex (FePS) was synthesized by co-thermal synthesis with garlic polysaccharide (PS) and ferric trichloride. The complex was characterized by infrared spectroscopy and thermogravimetric analysis. The scavenging activity of PS and FePS on hydroxyl radicals, superoxide anions and lipid peroxidation were studied. The scavenging hydroxyl radical activity of PS and FePS ...
DOI:
10.1016/j.ijbiomac.2019.10.041

2. GCN-BMP: Investigating graph representation learning for DDI prediction task

Author:
Chen, Xin,   et al.   ; Liu, Xien; Wu, Ji;     Show all 3 Authors
Source:
Methods 2020 v.179 pp. 47-54
ISSN:
1046-2023
Subject:
artificial intelligence; data collection; drug interactions; drugs; medicinal properties; prediction
Abstract:
... One drug's pharmacological activity may be changed unexpectedly, owing to the concurrent administration of another drug. It is likely to cause unexpected drug-drug interactions (DDIs). Several machine learning approaches have been proposed to predict the occurrence of DDIs. However, existing approaches are almost dependent heavily on various drug-related features, which may incur noisy inductive b ...
DOI:
10.1016/j.ymeth.2020.05.014

3. Relationship between ecological stoichiometry and plant community diversity in the upper reaches of Tarim River, northwestern China

Author:
Chen, Xin,   et al.   ; Zhao, Jingjing; Gong, Lu;     Show all 3 Authors
Source:
Journal of Arid Land 2020 v.12 no.2 pp. 227-238
ISSN:
1674-6767
Subject:
arid lands; carbon; multivariate analysis; nitrogen; nitrogen content; phosphorus; plant communities; rivers; semiarid zones; species diversity; stoichiometry; China
Abstract:
... Changes in ecological stoichiometry reflect nitrogen (N), phosphorus (P) and both N and P limitations in a plant community, which in turn affect plant diversity of the community. However, the relationship between plant community diversity and ecological stoichiometry has not yet been fully researched in arid and semi-arid regions. Ecological stoichiometry and plant community diversity indices of e ...
DOI:
10.1007/s40333-019-0020-y

4. Robust sufficient dimension reduction via ball covariance

Author:
Chen, Xin,   et al.   ; Zhang, Jia;     Show all 2 Author
Source:
Computational statistics & data analysis 2019 v.140 pp. 144-154
ISSN:
0167-9473
Subject:
covariance; model validation; regression analysis; simulation models
Abstract:
... Sufficient dimension reduction is an important branch of dimension reduction, which includes variable selection and projection methods. Most of the sufficient dimension reduction methods are sensitive to outliers and heavy-tailed predictors, and require strict restrictions on the predictors and the response. In order to widen the applicability of sufficient dimension reduction, we propose BCov-SDR ...
DOI:
10.1016/j.csda.2019.06.004

5. Preparing 3D-printable silk fibroin hydrogels with robustness by a two-step crosslinking method

Author:
Chen, Xin,   et al.   ; Gong, Dafei; Lin, Qinrui; Shao, Zhengzhong; Yang, Yuhong;     Show all 5 Authors
Source:
RSC advances 2020 v.10 no.45 pp. 27225-27234
ISSN:
2046-2069
Subject:
biocompatibility; cartilage; crosslinking; fibroins; gelation; hydrogels; mechanical properties; prostheses; ripening; three-dimensional printing; tissue engineering
Abstract:
... Regenerated silk fibroin (RSF) features excellent biocompatibility and high-strength mechanical properties. However, traditional RSF-based materials can hardly be applied in 3D printing, which has shown great potential in producing artificial implants. In this work, we report a 3D printable RSF hydrogel formed by a weak, chemically crosslinked network. After the 3D printing process, the mechanical ...
DOI:
10.1039/d0ra04789a

6. Rotating detonation mode recognition using non-intrusive vibration sensing

Author:
Chen, Xin,   et al.   ; Zhong, Yepan; Wu, Yun; Jin, Di; Yang, Xingkui;     Show all 5 Authors
Source:
Energy 2020 v.199 pp. 117466
ISSN:
0360-5442
Subject:
entropy; longevity; turbines; vibration; wavelet
Abstract:
... Rotating detonation engine can be integrated with gas turbines to realize a high-performance power unit. We propose a novel method of non-intrusive vibration sensing for rotating detonation mode recognition. The conventional method is intrusive and exposes the pressure sensor to the high-temperature and high-pressure detonation wave, which limits the sensor life. In the proposed method, the vibrat ...
DOI:
10.1016/j.energy.2020.117466

7. A review on the effects of light-emitting diode (LED) light on the nutrients of sprouts and microgreens

Author:
Chen, Xin,   et al.   ; Zhang, Xiaoyan; Bian, Zhonghua; Yuan, Xingxing; Lu, Chungui;     Show all 5 Authors
Source:
Trends in food science & technology 2020 v.99 pp. 203-216
ISSN:
0924-2244
Subject:
antioxidant activity; calcium; carotenoids; chlorophyll; functional foods; glucosinolates; human nutrition; iron; light emitting diodes; microgreens; minerals; nutrients; nutritive value; phenolic compounds; phytochemicals; potassium; ultraviolet radiation; vitamins
Abstract:
... Sprouts and microgreens, which are tender, flavourful, rich in nutrients, have a short growth cycle, and have been recognized as functional foods in the human diet. Culturing under artificial light sources could regulate the growth, the phytochemical compound content and antioxidant capacity of sprouts and microgreens.In this review, the effects of light-emitting diode (LED) light on growth, phyto ...
DOI:
10.1016/j.tifs.2020.02.031

8. Facile and green synthesis of Au nanorods/graphene oxide nanocomposite with excellent catalytic properties for reduction of 4-nitrophenol

Author:
Chen, Xin,   et al.   ; Fang, Jiali; Wu, Yulian; Liu, Haiyang;     Show all 4 Authors
Source:
Journal of materials science 2020 v.55 no.14 pp. 5880-5891
ISSN:
0022-2461
Subject:
aminophenols; aqueous solutions; catalysts; catalytic activity; cetyltrimethylammonium bromide; chemical reduction; gold; graphene; graphene oxide; nanocomposites; nanogold; nanorods; p-nitrophenol; surfactants
Abstract:
... In this paper, we report a facile and green method to synthesize Au nanorods (AuNRs)/graphene oxide (GO) nanocomposites. In this approach, cetyltrimethylammonium bromide (CTAB) acted not only as a shape-directing agent but also as an assembling agent. The AuNRs/GO nanocomposites were prepared through electrostatic self-assembly between CTAB-capped positively charged AuNRs and negatively charged GO ...
DOI:
10.1007/s10853-020-04410-2

9. Water-Resistant Zein-Based Adhesives

Author:
Chen, Xin,   et al.   ; Wei, Yanxia; Yao, Jinrong; Shao, Zhengzhong;     Show all 4 Authors
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.20 pp. 7668-7679
ISSN:
2168-0485
Subject:
adhesives; aqueous solutions; cations; copper; crosslinking; ethanol; ferric chloride; glass; hydrophobicity; ingredients; iron; moieties; poly(vinyl chloride); sodium dodecyl sulfate; zein
Abstract:
... Protein-based adhesives have gained considerable interest, due to their unique ecofriendliness and abundant functional groups. However, the presence of polar groups results in poor water resistance and unsatisfactory bonding strength of protein-based adhesives, limiting their practical applications. In addition, the complicated preparation process also made the production of protein-based adhesive ...
DOI:
10.1021/acssuschemeng.0c01179

10. Narrowing Down a Major QTL Region Conferring Pod Fiber Contents in Yardlong Bean (<i>Vigna unguiculata</i>), a Vegetable Cowpea

Author:
Chen, Xin,   et al.   ; Watcharatpong, Phurisorn; Kaga, Akito; Somta, Prakit;     Show all 4 Authors
Source:
Genes 2020 v.11 no.4
ISSN:
2073-4425
Subject:
Vigna unguiculata; beta-glucosidase; biosynthesis; cellulose; chromosomes; cowpeas; crossing; fiber content; genes; genetic markers; hardness; hemicellulose; lignin; linkage groups; nucleotide sequences; pods; quantitative trait loci; transcription factors; vegetables; Asia
Abstract:
... Yardlong bean (Vigna unguiculata (L.) Walp. ssp. sesquipedalis), a subgroup of cowpea, is an important vegetable legume crop of Asia where its young pods are consumed in both fresh and cooked forms. Pod fiber contents (cellulose, hemicellulose and lignin) correlates with pod tenderness (softness/hardness) and pod shattering. In a previous study using populations derived from crosses ...
DOI:
10.3390/genes11040363

11. Field assessment of winter outdoor 3-D radiant environment and its impact on thermal comfort in a severely cold region

Author:
Chen, Xin,   et al.   ; Du, Jing; Sun, Cheng; Xiao, Qiuke; Liu, Jing;     Show all 5 Authors
Source:
The Science of the total environment 2020 v.709 pp. 136175
ISSN:
0048-9697
Subject:
air temperature; buildings; climate; cold; humans; relative humidity; winter; China
Abstract:
... According to the Code for Design of Civil Buildings (GB 50352-2005), the severely cold region of China is defined as the area where the monthly mean air temperature is lower than or equal to −10 °C in January, and is lower than or equal to 25 °C in July, and mean relative humidity is higher than or equal to 50% in July. This study investigates outdoor 3-D short- and long-wave radiant flux densitie ...
DOI:
10.1016/j.scitotenv.2019.136175

12. The complete chloroplast genome sequence of the Chinese endemic species Sorbus setschwanensis (Rosaceae) and its phylogenetic analysis

Author:
Chen, Xin,   et al.   ; Wang, Qin; Niu, Zhengyang; Li, Jiabao; Zhu, Kailin;     Show all 5 Authors
Source:
Nordic journal of botany 2020 v.38 no.2
ISSN:
0107-055X
Subject:
Sorbus; chloroplast genome; chloroplasts; genes; genetic markers; indigenous species; intergenic DNA; microsatellite repeats; phylogeny; population genetics; ribosomal RNA; sequence homology; transfer RNA; China
Abstract:
... Sorbus setschwanensis Koehne is a pinnate‐leaved Sorbus s.str. species endemic to China with narrow distribution and intriguing phylogeny that needs wider attention. In this paper, the complete chloroplast (cp) genome of S. setschwanensis is reported, and its phylogenetic position is analyzed. The complete cp genome of S. setschwanensis is 160 064 bp in size with 36.50% GC content. It has a typica ...
DOI:
10.1111/njb.02532

13. The globus pallidus as a target for neuropeptides and endocannabinoids participating in central activities

Author:
Chen, Xin-Yi,   et al.   ; Xue, Yan; Chen, Hua; Chen, Lei;     Show all 4 Authors
Source:
Peptides 2020 v.124 pp. 170210
ISSN:
0196-9781
Subject:
Parkinson disease; brain; cannabinoids; enkephalin; ganglia; neurons; neurotensin; pathophysiology; polypeptides; receptors; schizophrenia; somatostatin; substance P; synaptic transmission
Abstract:
... The globus pallidus in the basal ganglia plays an important role in movement regulation. Neuropeptides and endocannabinoids are neuronal signalling molecules that influence the functions of the whole brain. Endocannabinoids, enkephalin, substance P, neurotensin, orexin, somatostatin and pituitary adenylate cyclase-activating polypeptides are richly concentrated in the globus pallidus. Neuropeptide ...
DOI:
10.1016/j.peptides.2019.170210

14. Porcine sialoadhesin suppresses type I interferon production to support porcine reproductive and respiratory syndrome virus infection

Author:
Chen, Xin-xin,   et al.   ; Liu, Yingqi; Li, Rui; Qiao, Songlin; Deng, Ruiguang; Zhang, Gaiping;     Show all 6 Authors
Source:
Veterinary research 2020 v.51 no.1 pp. 18
ISSN:
1297-9716
Subject:
Porcine reproductive and respiratory syndrome virus; interferons; pathogenesis; porcine reproductive and respiratory syndrome; pork industry; swine; transcription factor NF-kappa B
Abstract:
... Porcine reproductive and respiratory syndrome virus (PRRSV) is a significant threat to the global swine industry. Porcine sialoadhesin (poSn) has been previously shown to mediate PRRSV attachment and internalization. In the current study, we report its unidentified role in antagonism of type I interferon (IFN) production during PRRSV infection. We determined that poSn facilitated PRRSV infection v ...
DOI:
10.1186/s13567-020-00743-7
PubMed:
32093750
PubMed Central:
PMC7038599

15. Optimal influent COD/N ratio for obtaining low GHG emissions and high pollutant removal efficiency in constructed wetlands

Author:
Chen, Xin,   et al.   ; Zhu, Hui; Yan, Baixing; Shutes, Brian; Tian, Liping; Wen, Huiyang;     Show all 6 Authors
Source:
Journal of cleaner production 2020 v.267 pp. 122003
ISSN:
0959-6526
Subject:
biogeochemical cycles; carbon; carbon dioxide; chemical oxygen demand; constructed wetlands; denitrifying microorganisms; genes; global warming potential; greenhouse gas emissions; greenhouse gases; methane; nitrates; nitrogen; nitrous oxide; pollution control; subsurface flow; total nitrogen
Abstract:
... Influent chemical oxygen demand (COD)/nitrogen (N) ratio plays a crucial role in the biogeochemical cycle of carbon and N in constructed wetlands (CWs). This study evaluated the greenhouse gas (GHG) emissions, pollutant removal efficiency and specific microbial gene abundances in subsurface flow CWs (SSFCWs) under various influent COD/N ratios. The GHG emissions and pollutant removal efficiency we ...
DOI:
10.1016/j.jclepro.2020.122003

16. Bioaccessiblity and exposure assessment of PM2.5- and PM10-bound rare earth elements in Oil City, Northeast China

Author:
Chen, Xin,   et al.   ; Gao, Peng; Jian, Hu; Xing, Yanfeng; Tianxing, Xu; Jia, Liming; Hang, Jian;     Show all 7 Authors
Source:
Journal of hazardous materials 2020 v.396 pp. 122520
ISSN:
0304-3894
Subject:
bioavailability; exposure assessment; exposure duration; human health; in vitro studies; lungs; oils; particulates; pollution; rare earth elements; risk; China
Abstract:
... In this study, an in vitro method was used to simulate lung fluids [Artificial lysosomal fluid (ALF) and Gamble’s solution (GS)] to assess how the bioaccessibility of rare earth elements (REEs) in airborne particulate matter (PM) affects human health. Airborne PM samples (PM₁₀ and PM₂.₅) were collected in Daqing in Northeast China. The bioaccessible proportions determined for REEs in PM₁₀ and PM₂. ...
DOI:
10.1016/j.jhazmat.2020.122520

17. Escherichia coli Increases its ATP Concentration in Weakly Acidic Environments Principally through the Glycolytic Pathway

Author:
Chen, Xin,   et al.   ; Zhang, Wenbin; Sun, Wei; Nie, Tao; Quanquin, Natalie; Sun, Yirong;     Show all 6 Authors
Source:
Genes 2020 v.11 no.9
ISSN:
2073-4425
Subject:
Escherichia coli; acid tolerance; adenosine triphosphate; gene expression regulation; genes; glycolysis; intestinal microorganisms; nucleic acids; organic compounds; oxidation; oxidative phosphorylation; pH; stomach; transcription (genetics); trophic relationships
Abstract:
... Acid resistance is an intrinsic characteristic of intestinal bacteria in order to survive passage through the stomach. Adenosine triphosphate (ATP), the ubiquitous chemical used to power metabolic reactions, activate signaling cascades, and form precursors of nucleic acids, was also found to be associated with the survival of Escherichia coli (E. coli) in acidic environments. The metabolic pathway ...
DOI:
10.3390/genes11090991

18. Relationship between environmental factors and facial expressions of visitors during the urban forest experience

Author:
Chen, Xin,   et al.   ; Wei, Hongxu; Ma, Bingqian; Hauer, Richard J.; Liu, Chunyue; He, Xingyuan;     Show all 6 Authors
Source:
Urban forestry & urban greening 2020 v.53 pp. 126699
ISSN:
1618-8667
Subject:
air; analysis of variance; college students; color; computer software; environmental factors; females; green light; males; photographs; questionnaires; relative humidity; solar radiation; statistical models; summer; temperature; understory; urban areas; urban forests
Abstract:
... A forest environment can promote the mental state of people and the effect can result within short frames (e.g., minutes of visit). Most studies to date have used questionnaire investigation or medical examination to study how forest affect people. However, these methods were not rapid enough to assess real-time emotion of visitors who were immersed in a forest experience. In this study, twenty-fo ...
DOI:
10.1016/j.ufug.2020.126699

19. Preparation and characterization of antibacterial poly(lactic acid) nanocomposites with N-halamine modified silica

Author:
Chen, Xin,   et al.   ; Zhao, Yan; Wei, Bolei; Wu, Mi; Zhang, Huiliang; Yao, Jinrong; Shao, Zhengzhong;     Show all 7 Authors
Source:
International journal of biological macromolecules 2020 v.155 pp. 1468-1477
ISSN:
0141-8130
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; chlorination; crystallization; differential scanning calorimetry; grasses; injection molding; melting; melting point; nanocomposites; nanoparticles; polylactic acid; silica; storage modulus; temperature; thermal properties; viscosity
Abstract:
... In this work, silica nanoparticles modified with a new N-halamine precursor (EBDMH-SiO₂ NPs) were synthesized through immobilization of 3-(4′-epoxyethyl-benzyl)-5,5-dimethylhydantoin (EBDMH) on the surface of amino-functionalized silica NPs. Then, EBDMH-SiO₂ NPs and poly(lactic acid) (PLA) were blended at 185 °C to prepare a novel environmentally friendly PLA based nanocomposite (PLA/EBDMH-SiO₂). ...
DOI:
10.1016/j.ijbiomac.2019.11.125

20. Copper(ii)-catalyzed synthesis of multisubstituted indoles through sequential Chan–Lam and cross-dehydrogenative coupling reactions

Author:
Chen, Xin,   et al.   ; Bian, Yunyun; Mo, Baichuan; Sun, Peng; Chen, Chunxia; Peng, Jinsong;     Show all 6 Authors
Source:
RSC advances 2020 v.10 no.42 pp. 24830-24839
ISSN:
2046-2069
Subject:
arylation; boronic acids; catalytic activity; copper; dimethyl sulfoxide; esters; indoles; myristic acid; potassium bicarbonate; potassium permanganate; solvents
Abstract:
... Starting from arylboronic acids and ester (Z)-3-aminoacrylates, one-pot syntheses of diverse indole-3-carboxylic esters have been described through copper(ii)-catalyzed sequential Chan–Lam N-arylation and cross-dehydrogenative coupling (CDC) reactions. The initial Chan–Lam arylation can proceed in DMF at 100 °C for 24 h to give ester (Z)-3-(arylamino)acrylate intermediates in the presence of Cu(OA ...
DOI:
10.1039/d0ra04592f