Base de dados : MEDLINE
Pesquisa : D02.172.025 [Categoria DeCS]
Referências encontradas : 194 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 20 ir para página                         

  1 / 194 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28035659
[Au] Autor:Gülseren D; Hapa A; Ersoy-Evans S; Elçin G; Karaduman A
[Ad] Endereço:Hacettepe University, School of Medicine, Department of Dermatology, Ankara, Turkey.
[Ti] Título:Is there a role of food additives in recurrent aphthous stomatitis? A prospective study with patch testing.
[So] Source:Int J Dermatol;56(3):302-306, 2017 Mar.
[Is] ISSN:1365-4632
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Recurrent aphthous stomatitis (RAS) is a common disease of the oral mucosa with an unknown etiology. This study aimed to determine if food additives play a role in the etiology of RAS as well as to determine if patch testing can be used to detect which allergens cause RAS. METHODS: This prospective study included 24 patients with RAS and 22 healthy controls. All the participants underwent patch testing for 23 food additives. RESULTS: In total, 21 (87.5%) RAS patients and 3 (13.6%) controls had positive patch test reactions to ≥1 allergens; the difference in the patch test positivity rate between groups was significant (P < 0.05). The most common allergen that elicited positive patch test results in the patient group was cochineal red (n = 15 [62.5%]), followed by azorubine (n = 11 [45.8%]) and amaranth (n = 6 [25%]). CONCLUSIONS: The present findings show that food additives might play a role in the etiology of RAS and that patch testing could be a method for determining the etiology of RAS.
[Mh] Termos MeSH primário: Alérgenos/efeitos adversos
Corantes/efeitos adversos
Aditivos Alimentares/efeitos adversos
Estomatite Aftosa/imunologia
[Mh] Termos MeSH secundário: Adulto
Corante Amaranto/efeitos adversos
Compostos Azo/efeitos adversos
Estudos de Casos e Controles
Feminino
Seres Humanos
Masculino
Meia-Idade
Naftalenossulfonatos/efeitos adversos
Testes do Emplastro
Estudos Prospectivos
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Allergens); 0 (Azo Compounds); 0 (Coloring Agents); 0 (Food Additives); 0 (Naphthalenesulfonates); 915-67-3 (Amaranth Dye); DR4641L47F (azo rubin S); Z525CBK9PG (ponceau 4R)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161231
[St] Status:MEDLINE
[do] DOI:10.1111/ijd.13515


  2 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27956332
[Au] Autor:Shabbir S; Faheem M; Ali N; Kerr PG; Wu Y
[Ad] Endereço:State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Sciences, Chinese Academy of Sciences, 71, East Beijing Road, Nanjing 210008, Jiangsu, People's Republic of China; Department of Microbiology, Quaid-i-Azam University, 3rd Avenue, 45320 Islamabad, Pakistan.
[Ti] Título:Evaluating role of immobilized periphyton in bioremediation of azo dye amaranth.
[So] Source:Bioresour Technol;225:395-401, 2017 Feb.
[Is] ISSN:1873-2976
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to evaluate the bioremediation capabilities of three kinds of periphyton (i.e. epiphyton, metaphyton and epilithon) immobilized in bioreactors to decolorize and biodegrade the sulphonated azo dye, amaranth. Results showed that periphyton dominated by phyla including Cyanobacteria, Proteobacteria and Bacteroidetes. Complete removal of dye was shown by all the biofilms periphyton (epiphyton showed highest removal efficacy) over a range of initial concentrations (50-500mgL ) within 84h at pH 7 and 30°C. Biodegradation of amaranth was confirmed through FTIR and HPLC and the biodegradation pathways were detected by GC-MS/MS analysis. The azo bonds in the amaranth were successfully broken by periphyton and amaranth was converted to non-toxic, aliphatic compounds including isobutene, acetyl acetate and ethyl acetate. The results showed the potential application of immobilized periphyton at industrial scale for the removal of azo dyes from wastewater containing azo dye amaranth.
[Mh] Termos MeSH primário: Corante Amaranto/metabolismo
Reatores Biológicos/microbiologia
Corantes/metabolismo
Consórcios Microbianos/fisiologia
[Mh] Termos MeSH secundário: Corante Amaranto/química
Compostos Azo/metabolismo
Bacteroidetes/metabolismo
Biodegradação Ambiental
Células Imobilizadas
Cromatografia Líquida de Alta Pressão
Corantes/química
Cianobactérias/metabolismo
Cromatografia Gasosa-Espectrometria de Massas
Proteobactérias/metabolismo
Espectroscopia de Infravermelho com Transformada de Fourier
Espectrometria de Massas em Tandem
Poluentes Químicos da Água/química
Poluentes Químicos da Água/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Coloring Agents); 0 (Water Pollutants, Chemical); 915-67-3 (Amaranth Dye)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170213
[Lr] Data última revisão:
170213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161214
[St] Status:MEDLINE


  3 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27054746
[Au] Autor:Li L; Shi Z; Zhu H; Hong W; Xie F; Sun K
[Ad] Endereço:Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei University, Wuhan, Hubei 430062, China E-mail: waitingll@yahoo.com.
[Ti] Título:Adsorption of azo dyes from aqueous solution by the hybrid MOFs/GO.
[So] Source:Water Sci Technol;73(7):1728-37, 2016.
[Is] ISSN:0273-1223
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In this work, a hybrid of chromium(III) terephthalate metal organic framework (MIL-101) and graphene oxide (GO) was synthesized and its performance in the removal of azo dyes (Amaranth, Sunset Yellow, and Carmine) from water was evaluated. The adsorption for azo dyes on MIL-101/GO was compared with that of MIL-101, and it was found that the addition of GO enhanced the stability of MIL-101 in water and increased the adsorption capacity. The maximum adsorption capacities of MIL-101/GO were 111.01 mg g(-1) for Amaranth, 81.28 mg g(-1) for Sunset Yellow, and 77.61 mg g(-1) for Carmine. The adsorption isotherms and kinetics were investigated, showing that the adsorption fits the Freundlich isotherm and the pseudo-second-order kinetic model. The recyclability of MIL-101/GO was shown by the regeneration by acetone. The high adsorption capability and excellent reusability make MIL-101/GO a competent adsorbent for the removal dyes from aqueous solution.
[Mh] Termos MeSH primário: Corante Amaranto/química
Compostos Azo/química
Carmim/química
Compostos de Cromo/química
Poluentes Químicos da Água/química
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Adsorção
Corantes
Grafite/química
Concentração de Íons de Hidrogênio
Cinética
Metais
Óxidos
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Chromium Compounds); 0 (Coloring Agents); 0 (Metals); 0 (Oxides); 0 (Water Pollutants, Chemical); 059QF0KO0R (Water); 7782-42-5 (Graphite); 915-67-3 (Amaranth Dye); CID8Z8N95N (Carmine); H77VEI93A8 (FD & C Yellow No. 6)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:160408
[Lr] Data última revisão:
160408
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160408
[St] Status:MEDLINE
[do] DOI:10.2166/wst.2016.009


  4 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26744938
[Au] Autor:da Cruz Severo E; Anchieta CG; Foletto VS; Kuhn RC; Collazzo GC; Mazutti MA; Foletto EL
[Ad] Endereço:Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria 97105-900, Brazil E-mail: efoletto@gmail.com.
[Ti] Título:Degradation of Amaranth azo dye in water by heterogeneous photo-Fenton process using FeWO4 catalyst prepared by microwave irradiation.
[So] Source:Water Sci Technol;73(1):88-94, 2016.
[Is] ISSN:0273-1223
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:FeWO4 particles were synthesized by a simple, rapid and facile microwave technique and their catalytic properties in heterogeneous photo-Fenton reaction were evaluated. This material was employed in the degradation of Amaranth azo dye. Individual and interactive effects of operational parameters such as pH, dye concentration and H2O2 dosage on the decolorization efficiency of Amaranth dye were evaluated by 2(3) central composite design. According to characterization techniques, a porous material and a well-crystallized phase of FeWO4 oxide were obtained. Regarding the photo-Fenton reaction assays, up to 97% color and 58% organic carbon removal were achieved in the best experimental conditions. In addition, the photo-Fenton process maintained treatment efficiency over five catalyst reuse cycles to indicate the durability of the FeWO4 catalyst. In summary, the results reveal that the synthesized FeWO4 material is a promising catalyst for wastewater treatment by heterogeneous photo-Fenton process.
[Mh] Termos MeSH primário: Corante Amaranto/química
Óxidos/síntese química
Fotólise
Compostos de Tungstênio/síntese química
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Compostos Azo/química
Catálise
Cor
Corantes
Peróxido de Hidrogênio/química
Ferro/química
Micro-Ondas
Água
[Pt] Tipo de publicação:EVALUATION STUDIES; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Coloring Agents); 0 (Fenton's reagent); 0 (Oxides); 0 (Tungsten Compounds); 059QF0KO0R (Water); 915-67-3 (Amaranth Dye); BBX060AN9V (Hydrogen Peroxide); E1UOL152H7 (Iron)
[Em] Mês de entrada:1604
[Cu] Atualização por classe:160109
[Lr] Data última revisão:
160109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160109
[St] Status:MEDLINE
[do] DOI:10.2166/wst.2015.469


  5 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26490910
[Au] Autor:Kardi SN; Ibrahim N; Rashid NA; Darzi GN
[Ad] Endereço:Department of Biosciences and Health Sciences, Universiti Teknologi Malaysia, 81310 UTM, Johor Bahru, Johor, Malaysia. nazanin_kardi@yahoo.com.
[Ti] Título:Simultaneous acid red 27 decolourisation and bioelectricity generation in a (H-type) microbial fuel cell configuration using NAR-2.
[So] Source:Environ Sci Pollut Res Int;23(4):3358-64, 2016 Feb.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Microbial fuel cells (MFCs) represent one of the most attractive and eco-friendly technologies that convert chemical bond energy derived from organic matter into electrical power by microbial catabolic activity. This paper presents the use of a H-type MFC involving a novel NAR-2 bacterial consortium consisting of Citrobacter sp. A1, Enterobacter sp. L17 and Enterococcus sp. C1 to produce electricity whilst simultaneously decolourising acid red 27 (AR27) as a model dye, which is also known as amaranth. In this setup, the dye AR27 is mixed with modified P5 medium (2.5 g/L glucose and 5.0 g/L nutrient broth) in the anode compartment, whilst phosphate buffer solution (PBS) pH 7 serves as a catholyte in the cathode compartment. After several electrochemical analyses, the open circuit voltage (OCV) for 0.3 g/L AR27 with 24-h retention time at 30 °C was recorded as 0.950 V, whereas (93%) decolourisation was achieved in 220-min operation. The maximum power density was reached after 48 h of operation with an external load of 300 Ω. Scanning electron microscopy (SEM) analysis revealed the surface morphology of the anode and the bacterial adhesion onto the electrode surface. The results of this study indicate that the decolourisation of AR27 dye and electrical power generation was successfully achieved in a MFC operated by a bacterial consortium. The consortium of bacteria was able to utilise AR27 in a short retention time as an electron acceptor and to shuttle the electrons to the anode surface for bioelectricity generation.
[Mh] Termos MeSH primário: Compostos Azo/análise
Bactérias/metabolismo
Fontes de Energia Bioelétrica/microbiologia
[Mh] Termos MeSH secundário: Corante Amaranto
Compostos Azo/metabolismo
Bactérias/química
Bactérias/genética
Bactérias/isolamento & purificação
Aderência Bacteriana
Biodegradação Ambiental
Eletricidade
Eletrodos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 915-67-3 (Amaranth Dye)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151023
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-015-5538-8


  6 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26439860
[Au] Autor:Sudrajat H; Babel S; Sakai H; Takizawa S
[Ad] Endereço:School of Biochemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University, P. O. Box 22, Pathum Thani 12121, Thailand.
[Ti] Título:Rapid enhanced photocatalytic degradation of dyes using novel N-doped ZrO2.
[So] Source:J Environ Manage;165:224-234, 2016 Jan 01.
[Is] ISSN:1095-8630
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A novel N-doped ZrO2 (N-ZrO2) photocatalyst is synthesized through thermal decomposition of zirconium hydroxide-urea complex and is characterized using various techniques, including XRD, FTIR, TGA, SEM, TEM, UV-DRS, XPS, XANES, and BET. The N-ZrO2 possesses pure monoclinic structure with high crystallinity. By using the proposed facile route of synthesis, both interstitial and substitutional N doping with high dopant stability can be realized. The optical properties of the catalyst are significantly altered after N doping, giving an optical response in the visible and near infrared regions and an additional strong absorption peak in the UVA region. The N-ZrO2 showed a higher photocatalytic activity than pristine ZrO2 for the degradation of amaranth (AM) and methylene blue (MB) under visible or UV light irradiation, which could be attributed to the band gap narrowing, higher specific area, smaller crystalline size, and higher availability of surface hydroxyl groups. Due to its molecular structure and light absorption characteristics, MB is easier to degrade than AM. Overall removal efficiencies, including adsorption and photolysis, for AM and MB by N-ZrO2 at pH 7 with initial dye concentration of 10 mg/L, catalyst concentration of 1 g/L, and visible light irradiation of 144.7 W/m(2) are 67.2 and 96%, respectively. Using UVA light of only 3.5 W/m(2) under identical experimental conditions, complete removal of MB and AM is obtained. The photocatalytically treated solution of either AM or MB is nontoxic against Bacillus cereus, an agriculturally important soil microorganism.
[Mh] Termos MeSH primário: Corantes/química
Hidróxidos/química
Águas Residuais/química
Poluentes Químicos da Água/química
Purificação da Água/métodos
Zircônio/química
[Mh] Termos MeSH secundário: Adsorção
Corante Amaranto/análise
Corante Amaranto/química
Corante Amaranto/farmacologia
Bacillus cereus/efeitos dos fármacos
Catálise
Corantes/análise
Azul de Metileno/análise
Azul de Metileno/química
Azul de Metileno/farmacologia
Fotólise
Titânio/química
Raios Ultravioleta
Poluentes Químicos da Água/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Coloring Agents); 0 (Hydroxides); 0 (Waste Water); 0 (Water Pollutants, Chemical); 12688-15-2 (zirconium hydroxide); 915-67-3 (Amaranth Dye); C6V6S92N3C (Zirconium); D1JT611TNE (Titanium); T42P99266K (Methylene Blue)
[Em] Mês de entrada:1606
[Cu] Atualização por classe:170802
[Lr] Data última revisão:
170802
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151007
[St] Status:MEDLINE


  7 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26001101
[Au] Autor:Wang YQ; Zhang HM
[Ad] Endereço:Institute of Applied Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng City, Jiangsu Province 224002, People's Republic of China. Electronic address: wyqing76@126.com.
[Ti] Título:Exploration of binding of C.I. Food Red 9 with pepsin by optical spectroscopic and molecular docking methods.
[So] Source:Spectrochim Acta A Mol Biomol Spectrosc;149:822-9, 2015.
[Is] ISSN:1873-3557
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A comprehensive study of the effects of C.I. Food Red 9 on the conformation and activity of pepsin was performed using multi-spectral methods and molecular docking technique. Fluorescence and circular dichroism spectral analyzes showed that C.I. Food Red 9 binding induced the changes of secondary and tertiary structure of pepsin. The activity experimental results indicated that the activity of pepsin decreased remarkably with the increasing concentration of C.I. Food Red 9. Multi non-covalent interactions including hydrogen bonds, hydrophobic, and electrostatic forces played important roles in the complex formation between C.I. Food Red 9 and pepsin. The binding constants of pepsin with C.I. Food Red 9 were (1.21±0.036)×10(4) L mol(-1) (298 K) and (1.05±0.043)×10(4) L mol(-1) (310 K). Moreover, the putative binding site of C.I. Food Red 9 on pepsin was near to activity pocket. This study demonstrates that C.I. Food Red 9 could cause some negative effects on pepsin.
[Mh] Termos MeSH primário: Corante Amaranto/metabolismo
Compostos Azo/metabolismo
Simulação de Acoplamento Molecular
Fenômenos Ópticos
Pepsina A/metabolismo
[Mh] Termos MeSH secundário: Corante Amaranto/química
Animais
Compostos Azo/química
Elétrons
Cinética
Pepsina A/química
Ligação Proteica
Espectrometria de Fluorescência
Espectrofotometria Ultravioleta
Sus scrofa
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 915-67-3 (Amaranth Dye); EC 3.4.23.1 (Pepsin A)
[Em] Mês de entrada:1609
[Cu] Atualização por classe:150810
[Lr] Data última revisão:
150810
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150523
[St] Status:MEDLINE


  8 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25937630
[Au] Autor:Gnanaprakasam A; Sivakumar VM; Sivayogavalli PL; Thirumarimurugan M
[Ad] Endereço:Department of Chemical Engineering, Coimbatore Institute of Technology, Coimbatore 641014, Tamilnadu, India.
[Ti] Título:Characterization of TiO2 and ZnO nanoparticles and their applications in photocatalytic degradation of azodyes.
[So] Source:Ecotoxicol Environ Saf;121:121-5, 2015 Nov.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:TiO2 nanoparticles have been synthesized from the inorganic precursor Ti [OC3H7]4via sol-gel technique. Similarly, ZnO nanoparticles have also been synthesized from zinc sulfate precursor using precipitation method. The prepared nanoparticles was characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) techniques to study the morphology, structural configuration and its functionality. The average particle size for TiO2 and ZnO nanoparticles was 15.4nm and 17.9nm, respectively. The synthesized TiO2 and ZnO nanoparticles have been used for degradation of acid red 27 and coralene red F3BS dyes under the UV light. The regeneration of TiO2 photocatalyst was also tested.
[Mh] Termos MeSH primário: Compostos Azo/química
Nanopartículas/química
Titânio/química
Óxido de Zinco/química
[Mh] Termos MeSH secundário: Corante Amaranto
Catálise
Microscopia Eletrônica de Varredura
Tamanho da Partícula
Espectrometria por Raios X
Espectroscopia de Infravermelho com Transformada de Fourier
Raios Ultravioleta
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 15FIX9V2JP (titanium dioxide); 915-67-3 (Amaranth Dye); D1JT611TNE (Titanium); SOI2LOH54Z (Zinc Oxide)
[Em] Mês de entrada:1604
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150505
[St] Status:MEDLINE


  9 / 194 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25725343
[Au] Autor:Basu A; Kumar GS
[Ad] Endereço:Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata 700 032, India.
[Ti] Título:Interaction of toxic azo dyes with heme protein: biophysical insights into the binding aspect of the food additive amaranth with human hemoglobin.
[So] Source:J Hazard Mater;289:204-9, 2015 May 30.
[Is] ISSN:1873-3336
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:A biophysical study on the interaction of the food colorant amaranth with hemoglobin was undertaken. Spectrophotometric and spectrofluorimetric studies proposed for an intimate binding interaction between the dye and the protein. The dye quenched the fluorescence of the protein remarkably and the mechanism of quenching was found to be static in nature. Synchronous fluorescence studies suggested that the polarity around the tryptophan residues was altered in the presence of amaranth whereas the polarity around tyrosine residues remained largely unaltered. 3D fluorescence, FTIR and circular dichroism results suggested that the binding reaction caused conformational changes in hemoglobin. The negative far-UV CD bands exhibited a significantly large decrease in magnitude in the presence of amaranth. From calorimetry studies it was established that the binding was driven by a large positive entropic contribution and a small but favorable enthalpy change.
[Mh] Termos MeSH primário: Corante Amaranto/química
Compostos Azo/química
Corantes de Alimentos/química
Hemeproteínas/química
Hemoglobinas/química
[Mh] Termos MeSH secundário: Biofísica
Varredura Diferencial de Calorimetria
Dicroísmo Circular
Seres Humanos
Espectrometria de Fluorescência
Espectrofotometria Ultravioleta
Espectroscopia de Infravermelho com Transformada de Fourier
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Food Coloring Agents); 0 (Hemeproteins); 0 (Hemoglobins); 915-67-3 (Amaranth Dye)
[Em] Mês de entrada:1512
[Cu] Atualização por classe:150330
[Lr] Data última revisão:
150330
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150301
[St] Status:MEDLINE


  10 / 194 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25722171
[Au] Autor:Wang M; Sun Y; Yang X; Zhao J
[Ad] Endereço:Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 21008, Jiangsu Province, PR China.
[Ti] Título:Sensitive determination of Amaranth in drinks by highly dispersed CNT in graphene oxide "water" with the aid of small amounts of ionic liquid.
[So] Source:Food Chem;179:318-24, 2015 Jul 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Graphene oxide (GO) is a pH-dependent amphiphile. In this paper, it was found that carbon nanotubes (CNTs) can be highly dispersed in graphene oxide "water" with the aid of prototype ionic liquid of 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]). The introduction of [BMIM][PF6] not only can minimize the defects of poor electrical conductivity of GO, but also can improve the dispersibility of CNT in water. Hence, a new composite of CNT/GO-[BMIM][PF6] with high dispersibility and strong conductivity was presented for the first time and employed in the sensitive determination of Amaranth in soft drinks. The detection limit achieved (0.1 nM) is much lower than the guideline values in soft drinks. The ease of preparation, low background current, high sensitivity and stability can create novel avenues and applications for fabricating robust sensors for determination of other azo dyes in foods.
[Mh] Termos MeSH primário: Bebidas/análise
Grafite/metabolismo
Líquidos Iônicos/metabolismo
Água/química
[Mh] Termos MeSH secundário: Corante Amaranto
Análise de Alimentos
Nanotubos de Carbono
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Ionic Liquids); 0 (Nanotubes, Carbon); 059QF0KO0R (Water); 7782-42-5 (Graphite); 915-67-3 (Amaranth Dye)
[Em] Mês de entrada:1509
[Cu] Atualização por classe:150227
[Lr] Data última revisão:
150227
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150228
[St] Status:MEDLINE



página 1 de 20 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde