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- Author:
- Wei, Xiong; Wei, Ma; Shufen, Zhang
- Source:
- RSC advances 2019 v.9 no.31 pp. 17658-17663
- ISSN:
- 2046-2069
- Subject:
- adverse effects; aniline; benzene; color; cyanuric chloride; diazo compounds; dyeing; fluorescence; fluorescence emission spectroscopy; infrared spectroscopy; reactive dyes; ultraviolet radiation
- Abstract:
- ... Herein, a new kind of hetero-bifunctional reactive dyes with high light-fastness was designed and synthesized by introducing benzene sulfonamide and its derivatives into the triazine ring. Benzene sulfonamide or its derivatives and 2-amino-5-naphthol-7-sulfonic acid (J-acid) were condensed with cyanuric chloride to synthesize coupling components, which were then coupled with the diazo salt of 4-(β ...
- DOI:
- 10.1039/c9ra02108f
-
http://dx.doi.org/10.1039/c9ra02108f
- Author:
- Tai, Xin Hong; Chook, Soon Wei; Lai, Chin Wei; Lee, Kian Mun; Yang, Thomas Chung Kuang; Chong, Siewhui; Juan, Joon Ching
- Source:
- RSC advances 2019 v.9 no.31 pp. 18076-18086
- ISSN:
- 2046-2069
- Subject:
- adsorption; graphene oxide; humans; irradiation; methanol; models; moieties; oxidation; oxygen; photocatalysis; photocatalysts; photolysis; pollutants; pollution control; ultraviolet radiation; vapors; volatile organic compounds
- Abstract:
- ... Nowadays, humans spend most of their time indoors and are frequently exposed to volatile organic compounds (VOCs) from various sources. The photocatalytic oxidation (PCO) method is a relatively more efficient method than the adsorption method for removing VOCs from the environment. In this work, graphene oxide (GO) was partially reduced via photoreduction under ultraviolet light (UV-A) irradiation ...
- DOI:
- 10.1039/c9ra01209e
-
http://dx.doi.org/10.1039/c9ra01209e
- Author:
- Li, Yabing; Li, Fujin; Huang, Yanan; Wu, Haiyan; Wang, Jian; Yang, Jin; Xiao, Qingbo; Lin, Hongzhen
- Source:
- RSC advances 2019 v.9 no.31 pp. 18070-18075
- ISSN:
- 2046-2069
- Subject:
- coprecipitation; image analysis; ions; iron; light intensity; luminescence; magnetic resonance imaging; nanocrystals; nanoparticles; near-infrared spectroscopy; neoplasms; particle size; tissues
- Abstract:
- ... Small-sized lanthanide-doped nanoparticles (NPs) exhibiting superior near-infrared (NIR) luminescence properties are highly desired for bioimaging applications. Herein, Fe³⁺ ions are codoped in NaGdF₄:Nd³⁺ nanocrystals via a simple coprecipitation method, which can simultaneously reduce the particle size and enhance the downconverting NIR luminescence of the NPs. The NIR luminescence intensity rea ...
- DOI:
- 10.1039/c9ra00798a
-
http://dx.doi.org/10.1039/c9ra00798a
- Author:
- Xu, Yao-Di; Wang, Cong; Lv, Yang-Yang; Chen, Y. B.; Yao, Shu-Hua; Zhou, Jian
- Source:
- RSC advances 2019 v.9 no.31 pp. 18042-18049
- ISSN:
- 2046-2069
- Subject:
- Raman spectroscopy; bismuth; crystal structure; density functional theory; physical properties; selenium; sulfur; tellurium
- Abstract:
- ... The bismuth oxychalcogenide compounds contain many different kinds of materials, such as Bi₂O₂X and Bi₂OX₂ (X = S, Se, and Te). These materials have different but similar layered crystal structures and exhibit various interesting physical properties. Here, we have theoretically investigated their Raman and infrared spectra by first principles calculations based on density functional theory. It is ...
- DOI:
- 10.1039/c9ra02584g
-
http://dx.doi.org/10.1039/c9ra02584g
- Author:
- Glinská, Gabriela; Krajčíková, Kristína; Zakutanská, Katarína; Shylenko, Oleg; Kondrakhova, Daria; Tomašovičová, Natália; Komanický, Vladimír; Mašlanková, Jana; Tomečková, Vladimíra
- Source:
- RSC advances 2019 v.9 no.31 pp. 18050-18059
- ISSN:
- 2046-2069
- Subject:
- atomic force microscopy; blindness; diabetic retinopathy; diagnostic techniques; drug therapy; fluorescence emission spectroscopy; fluorescence microscopy; hyperglycemia; hypoglycemic agents; infrared spectroscopy; insulin; laboratory techniques; patients; screening
- Abstract:
- ... Diabetes mellitus and prolonged hyperglycemia can cause diabetic retinopathy. Diabetic retinopathy arises from damage to retinal vessels and, in its final stages, causes blindness. The early stages are often asymptomatic and although regular screening of diabetic patients is recommended, the beginning of diabetic retinopathy is insufficiently detected. The diagnostic potential of fluorescence spec ...
- DOI:
- 10.1039/c9ra02078k
-
http://dx.doi.org/10.1039/c9ra02078k
- Author:
- Yu, Yonghui; Zhang, Jingjie; Wang, Jing; Sun, Baogao
- Source:
- RSC advances 2019 v.9 no.31 pp. 18060-18069
- ISSN:
- 2046-2069
- Subject:
- absorption; adjuvants; antineoplastic activity; blood lipids; byproducts; fermented foods; mechanism of action; neoplasms; nutrients; nutritive value; oryzanol; patients; peptides; polysaccharides; proteins; rice; rice bran; rice bran oil; therapeutics; vitamins
- Abstract:
- ... Rice bran is the main by-product of rice processing and contains approximately 64% of the nutrients in rice. Its various nutrient elements include rice bran proteins, oil, oryzanol, vitamins, polysaccharides, etc. The use of fermented technology can increase the content of bioactive peptides, promote the absorption efficiency, and further improve the functionality and added value of rice bran. In ...
- DOI:
- 10.1039/c9ra02439e
-
http://dx.doi.org/10.1039/c9ra02439e
- Author:
- Nazeer, Faisal; Ma, Zhuang; Xie, Yitong; Gao, Lihong; Malik, Abdul; Khan, Muhammad Abubaker; Wang, Fuchi; Li, Hezhang
- Source:
- RSC advances 2019 v.9 no.31 pp. 17967-17974
- ISSN:
- 2046-2069
- Subject:
- anisotropy; composite materials; copper; graphene; graphene oxide; heat transfer; microstructure; modulus of rupture; scanning electron microscopy; thermal conductivity; thermal diffusivity
- Abstract:
- ... Recently, metals with graphene and graphene oxide have been extensively used to enhance the mechanical and anisotropic thermal properties of composites. A novel facile fabrication approach of layer by layer self-assembly followed by hot press sintering was adopted to make copper–reduced graphene oxide composites. The microstructure and heat dissipation properties of pure copper and copper–reduced ...
- DOI:
- 10.1039/c9ra03743h
-
http://dx.doi.org/10.1039/c9ra03743h
- Author:
- Li, Xinxin; Shi, Hebang; Wang, Bo; Li, Na; Zhang, Liqiang; Lv, Pengpeng
- Source:
- RSC advances 2019 v.9 no.31 pp. 17941-17949
- ISSN:
- 2046-2069
- Subject:
- cathodes; coatings; electrochemistry; fluidized beds; hydrolysis; models; titanium dioxide; vapors
- Abstract:
- ... Surface coating of metal oxides is an effective approach for enhancing the capacity retention of a nickel-rich layered cathode. Current conventional coating techniques including wet chemistry methods and atomic layer deposition are restricted by the difficulty in perfectly balancing the coating quality and scale-up production. Herein, a highly efficient TiO₂ coating route through fluidized bed che ...
- DOI:
- 10.1039/c9ra03087e
-
http://dx.doi.org/10.1039/c9ra03087e
- Author:
- Chen, Tao; Li, Wen-Qian; Hu, Wei-Bo; Hu, Wen-Jing; Liu, Yahu A.; Yang, Hui; Wen, Ke
- Source:
- RSC advances 2019 v.9 no.31 pp. 18008-18012
- ISSN:
- 2046-2069
- Subject:
- Lewis bases; chemical bonding; fluorescence; irradiation; photocatalysis; polymerization
- Abstract:
- ... Despite extensive efforts, only three main strategies have been developed to synthesize covalent triazine-based frameworks (CTFs) thus far. We report herein a totally new synthetic strategy which allows C–C bonds in the CTFs to be formed through aromatic nucleophilic substitution reactions. The as-synthesized CTF-1 and CTF-2 exhibited photocatalytic water splitting activity comparable to the CTFs ...
- DOI:
- 10.1039/c9ra02934f
-
http://dx.doi.org/10.1039/c9ra02934f
- Author:
- Rong, Zhouting; Gao, Kexin; Zhou, Lei; Lin, Jianyuan; Qian, Guoying
- Source:
- RSC advances 2019 v.9 no.31 pp. 17975-17978
- ISSN:
- 2046-2069
- Subject:
- catalytic activity; cyclization reactions; furans; indoles; phenols
- Abstract:
- ... A catalytic amount of CuCl and Cs₂CO₃ was employed to synthesize a variety of 2-substituted benzo[b]furans and indoles by an intramolecular cyclization of 2-alkynyl phenols and tosylanilines. This protocol features mild conditions, high yields and broad substrate scope, which makes it a practical method for the synthesis of 2-substituted benzo[b]furans and indoles. ...
- DOI:
- 10.1039/c9ra01260e
-
http://dx.doi.org/10.1039/c9ra01260e
- Author:
- Zhang, Zejun; Chen, Lijuan; Cui, Xiuming; Zhang, Yiming; Hu, Yupiao; Wang, Chengxiao; Xiong, Yin
- Source:
- RSC advances 2019 v.9 no.31 pp. 17950-17958
- ISSN:
- 2046-2069
- Subject:
- Panax notoginseng; anti-inflammatory activity; bioactive compounds; chemometrics; ginsenosides; high performance liquid chromatography; inflammation; interleukin-6; least squares; lipopolysaccharides; quality control; roots; tumor necrosis factor-alpha
- Abstract:
- ... To identify bioactive components of Panax notoginseng (PN) roots in raw and steamed forms, chemometrics analyses including bivariate correlation analysis and partial least squares regression were used to establish the relationships between the chromatograms and anti-inflammatory effect of PN samples. The chemical fingerprints of PN were obtained by high performance liquid chromatography. The anti- ...
- DOI:
- 10.1039/c9ra00906j
-
http://dx.doi.org/10.1039/c9ra00906j
- Author:
- Gadde, Karthik; Daelemans, Jonas; Maes, Bert U. W.; Abbaspour Tehrani, Kourosch
- Source:
- RSC advances 2019 v.9 no.31 pp. 18013-18017
- ISSN:
- 2046-2069
- Subject:
- aldehydes; aldimines; amines; carbonates; catalytic activity; ferric chloride; iron; solvents
- Abstract:
- ... The iron(iii)-catalyzed efficient strategy for the synthesis of α-substituted homoallylamines was accomplished via a cationic 2-aza-Cope rearrangement of aldimines, generated in situ by condensation of commercially available aldehydes and easily synthesizable 1,1-diphenylhomoallylamines. This reaction features a broad substrate scope with high yields and is conducted in an eco-friendly solvent, i. ...
- DOI:
- 10.1039/c9ra03277k
-
http://dx.doi.org/10.1039/c9ra03277k
- Author:
- Sheveleva, Nadezhda N.; Markelov, Denis A.; Vovk, Mikhail A.; Mikhailova, Mariya E.; Tarasenko, Irina I.; Tolstoy, Peter M.; Neelov, Igor M.; Lähderanta, Erkki
- Source:
- RSC advances 2019 v.9 no.31 pp. 18018-18026
- ISSN:
- 2046-2069
- Subject:
- arginine; biocompatibility; dendrimers; drugs; lysine; nanocarriers; nuclear magnetic resonance spectroscopy; toxicity; transfection
- Abstract:
- ... Due to their well-defined structure, multivalency, biocompatibility, and low toxicity, lysine dendrimers can be used as safe and efficient nanocarriers for drug and gene delivery. One useful strategy for improving the gene delivery properties of dendrimers is modification with arginine amino acid (Arg) residues. Incorporation of Arg residues could be favorable for the enhancement in transfection e ...
- DOI:
- 10.1039/c9ra02461a
-
http://dx.doi.org/10.1039/c9ra02461a
- Author:
- Cui, Yiwen; Wang, Yu; Wu, Jie; He, Xiaokang; Xuan, Shouhu; Gong, Xinglong
- Source:
- RSC advances 2019 v.9 no.31 pp. 17959-17966
- ISSN:
- 2046-2069
- Subject:
- color; iron oxides; magnetic fields; microparticles; polyacrylamide; temperature
- Abstract:
- ... This work demonstrates a simple microfluidic device to synthesize a magneto-thermochromic sphere with Janus inner structure. The Janus sphere is composed of Fe₃O₄ microspheres, thermochromic particles, and polyacrylamide matrix. Because the Fe₃O₄ microspheres are assembled together in one pole, the Janus sphere can turn around by varying the direction of the external magnetic field. Originating fr ...
- DOI:
- 10.1039/c9ra02892g
-
http://dx.doi.org/10.1039/c9ra02892g
- Author:
- Chang, Xing; Liu, Zi; Man, Shuai; Roys, Annie; Li, Zengqiang; Zuo, Daiying; Wu, Yingliang
- Source:
- RSC advances 2019 v.9 no.31 pp. 17921-17932
- ISSN:
- 2046-2069
- Subject:
- adenocarcinoma; brain; cell movement; histology; lung neoplasms; lymphoma; metastasis; oncogenes; patients; prognosis; receptor protein-tyrosine kinase; therapeutics
- Abstract:
- ... The rearrangements of anaplastic lymphoma kinase (ALK) and the c-ros oncogene 1 (ROS1) have both been important driving factors in non-small-cell lung cancer (NSCLC). They have already been defined in 3–5% of NSCLC patients. ALK and ROS1 rearrangements are associated with unique clinical and pathological features, especially patients are usually younger, with milder or never smoking history, and a ...
- DOI:
- 10.1039/c9ra02258a
-
http://dx.doi.org/10.1039/c9ra02258a
- Author:
- Seraj, Sanaz; Rouhani, Shohre; Faridbod, Farnoush
- Source:
- RSC advances 2019 v.9 no.31 pp. 17933-17940
- ISSN:
- 2046-2069
- Subject:
- boronic acids; detection limit; dyes; fluorescence; fructose; graphene oxide; humans; pH
- Abstract:
- ... A highly selective and sensitive fluorescent sensor for the determination of fructose is developed. The fluorescent sensor was prepared by incorporating a new naphthalimide dye with a planar structure as a selectophore and graphene oxide (GO) nanoplatelets as a quencher for rapid optical detection of fructose. The designed probe, made with the high fusion loop-containing dye, along with the GO nan ...
- DOI:
- 10.1039/c9ra01757g
-
http://dx.doi.org/10.1039/c9ra01757g
- Author:
- Sandström, Robin; Ekspong, Joakim; Gracia-Espino, Eduardo; Wågberg, Thomas
- Source:
- RSC advances 2019 v.9 no.31 pp. 17979-17987
- ISSN:
- 2046-2069
- Subject:
- annealing; catalysts; cobalt; commercialization; electrochemistry; fuel cells; microwave ovens; microwave treatment; nanoparticles; platinum; soot; surface area
- Abstract:
- ... The oxygen reduction reaction (ORR), the rate-limiting reaction in proton exchange membrane fuel cells, can efficiently be facilitated by properly manufactured platinum catalysts alloyed with late 3d transition metals. Herein we synthesize a platinum : cobalt nanoparticulate catalyst with a 3 : 1 atomic ratio by reduction of a dry metalorganic precursor blend within a commercial household microwav ...
- DOI:
- 10.1039/c9ra02095k
-
http://dx.doi.org/10.1039/c9ra02095k
- Author:
- Zhang, Jiaozhen; Liu, Na; Sun, Chao; Sun, Deqing; Wang, Yongjie
- Source:
- RSC advances 2019 v.9 no.31 pp. 17988-17994
- ISSN:
- 2046-2069
- Subject:
- Polygonatum sibiricum; cell lines; dose response; immune response; inducible nitric oxide synthase; interleukin-6; lipopolysaccharides; messenger RNA; mitogen-activated protein kinase; nitric oxide; signal transduction; transcription (genetics); transcription factor NF-kappa B; tumor necrosis factor-alpha; water solubility
- Abstract:
- ... The aim of this study was to examine the effect of polysaccharides from Polygonatum sibiricum (PSP) on RAW 264.7 cells together with the underlying signaling pathways. Water-soluble polysaccharides were extracted from Polygonatum sibiricum and the immunological activity/mechanism was explored in depth in RAW 264.7 cells. Our results demonstrated that PSP induced dendritic-like morphological change ...
- DOI:
- 10.1039/c9ra03023a
-
http://dx.doi.org/10.1039/c9ra03023a
- Author:
- Wu, Lingyan; Ferracci, Gaia; Wang, Yan; Fan, Teng Fei; Cho, Nam-Joon; Chow, Pierce K. H.
- Source:
- RSC advances 2019 v.9 no.31 pp. 17995-18007
- ISSN:
- 2046-2069
- Subject:
- cell culture; collagen; diclofenac; drug toxicity; drugs; extracellular matrix; fibronectins; gene expression; hepatocytes; hepatotoxicity; hydrogels; in vivo studies; liver; models; phenotype; polyethylene glycol; prediction; swine; viability
- Abstract:
- ... As drug-induced hepatotoxicity represents one of the most common causes of drug failure, three-dimensional (3D) in vitro liver platforms represent a fantastic toolbox to predict drug toxicity and thus reduce in vivo animal studies and lessen drug attrition rates. The aim of this study is to establish a functional porcine hepatocyte culture using a biofunctionalized 3D inverted colloidal crystal (I ...
- DOI:
- 10.1039/c9ra03225h
-
http://dx.doi.org/10.1039/c9ra03225h
- Author:
- Liu, Yuanyuan; Jiao, Chunpeng; Lu, Wenjuan; Zhang, Pingping; Wang, Yanfeng
- Source:
- RSC advances 2019 v.9 no.31 pp. 18027-18041
- ISSN:
- 2046-2069
- Subject:
- animal tissues; fluorescence; fluorescent dyes; hydrogen peroxide; image analysis; metabolism; monitoring; oxidative stress
- Abstract:
- ... Hydrogen peroxide (H₂O₂), as an important signaling molecule during biological metabolism, is a key member of the reactive oxygen species (ROS) family. The excess of H₂O₂ will lead to oxidative stress, which is a crucial factor in the production of various ROS-related diseases. In order to study the diverse biological roles of H₂O₂ in cells and animal tissues, many methods have been developed to d ...
- DOI:
- 10.1039/c9ra02467k
-
http://dx.doi.org/10.1039/c9ra02467k