Base de dados : MEDLINE
Pesquisa : J01.256.350 [Categoria DeCS]
Referências encontradas : 2257 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 226 ir para página                         

  1 / 2257 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29301083
[Au] Autor:Yang Y; Cheng J; Garamus VM; Li N; Zou A
[Ti] Título:Preparation of an Environmentally Friendly Formulation of the Insecticide Nicotine Hydrochloride through Encapsulation in Chitosan/Tripolyphosphate Nanoparticles.
[So] Source:J Agric Food Chem;66(5):1067-1074, 2018 Feb 07.
[Is] ISSN:1520-5118
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Insecticide nicotine hydrochloride (NCT) was formulated as nanoparticles composed of chitosan (CS) and sodium tripolyphosphate (TPP) to undermine its adverse impacts on human health and reinforce its physicochemical stability. The study investigated the preparation and characterization of chitosan/tripolyphosphate nanoparticles (CS/TPP NPs) with good encapsulation efficiency (55%), uniform morphology, and physicochemical stability (45 days) through dynamic light scattering (DLS), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS) measurements. A bioassay against Musca domestica NCT CS/TPP NPs exhibited good bioactivity and thermal stability. The effect of the monovalent salt (NaCl) on manipulating the formation and size distribution of ionically cross-linked nanoparticles was demonstrated as well. The formulation of NCT CS/TPP NPs could be a utility candidate in public health and agriculture.
[Mh] Termos MeSH primário: Quitosana
Química Verde
Inseticidas
Nanopartículas
Nicotina/análogos & derivados
Nicotina/química
Polifosfatos
[Mh] Termos MeSH secundário: Animais
Fenômenos Químicos
Composição de Medicamentos/métodos
Estabilidade de Medicamentos
Difusão Dinâmica da Luz
Moscas Domésticas
Microscopia Eletrônica de Transmissão
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Insecticides); 0 (Polyphosphates); 6M3C89ZY6R (Nicotine); 9012-76-4 (Chitosan); NU43IAG5BC (triphosphoric acid)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180105
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jafc.7b04147


  2 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29367146
[Au] Autor:Vasantharaj S; Sripriya N; Shanmugavel M; Manikandan E; Gnanamani A; Senthilkumar P
[Ad] Endereço:Dept. of Biotechnology, Hindusthan College of Arts and Science, Coimbatore 641028, TN, India. Electronic address: svasanthraj06@gmail.com.
[Ti] Título:Surface active gold nanoparticles biosynthesis by new approach for bionanocatalytic activity.
[So] Source:J Photochem Photobiol B;179:119-125, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:In the present day, nanotechnology is one of the most promising leading scientific and potentials areas in modern key technology development toward to the humankind. The synthesis of noble metal nanoparticles (NPs) is an expanding research area due to the possible applications for the development of bio-medical applications. Eco-friendly approach for the biosynthesis of gold nanoparticles (AuNPs) using the aqueous extract from Ruellia tuberosa and Phyllanthus acidus (leaf and twig) for the first time. Surface active AuNPs were characterized by UV-Vis spectroscopy, FTIR (Fourier transform infrared) spectroscopy, DSC (differential scanning colorimetry), DLS (dynamic light scattering) and environmental SEM (scanning electron microscope) analysis at room temperature (RT). Enhanced surface plasmon resonance (SPR) absorbance UV visible optical spectra were detected in the range of 552, 548, 558 and 536 nm. SEM and DLS (transmission mode) analysis confirmed the morphology of the nanoparticles to be spherical with the average size in the range of 88.37, 94.31, 82.23 and 81.36 nm. Further they have enhanced the enzyme activity on α-amylase, cellulase, and xylanase. The results suggest that the phyto-fabricated AuNPs from R. tuberosa and P. acidus is simple, less expensive, eco-friendly, green synthesis and also can be exploited for the potential future industrial and bio-medical applications.
[Mh] Termos MeSH primário: Ouro/química
Nanopartículas Metálicas/química
[Mh] Termos MeSH secundário: Acanthaceae/química
Acanthaceae/metabolismo
Difusão Dinâmica da Luz
Química Verde
Microscopia Eletrônica de Varredura
Tamanho da Partícula
Phyllanthus/química
Phyllanthus/metabolismo
Extratos Vegetais/química
Folhas de Planta/química
Folhas de Planta/metabolismo
Espectrofotometria Ultravioleta
Espectroscopia de Infravermelho com Transformada de Fourier
Ressonância de Plasmônio de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Extracts); 7440-57-5 (Gold)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180126
[St] Status:MEDLINE


  3 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29351880
[Au] Autor:Nasiriboroumand M; Montazer M; Barani H
[Ad] Endereço:Department of Carpet, Faculty of Art, Shahid Bahonar University of Kerman, Kerman, Iran. Electronic address: nasiri@mail.uk.ac.ir.
[Ti] Título:Preparation and characterization of biocompatible silver nanoparticles using pomegranate peel extract.
[So] Source:J Photochem Photobiol B;179:98-104, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:The potential application of any nanoparticles, including silver nanoparticles (AgNPs), strongly depends on their stability against aggregation. In the current study, an aqueous extract of pomegranate peel was used as a stabilizer during synthesis of AgNPs. Nanoparticles have been prepared by the chemical reduction method from an aqueous solution of silver nitrate in the presence of sodium borohydride as a reducing agent. The AgNPs were characterized by dynamic light scattering (DLS), zeta-potential measurements, UV-Vis spectroscopy and transmission electron microscopy (TEM). The antibacterial efficiency of AgNPs against Escherichia coli was investigated. The size, polydispersity index, FWHM, and colloidal stability of nanoparticles in dispersion depends on the extract concentrations. In the presence of pomegranate peel extract, the nanoparticles suspension shows colloidal stability at least for a week. Our studies show that synthesized AgNPs with the above described procedure were stable at pH = 3-12 and in the temperature range of 25-85 °C. Additionally, AgNPs exhibit antibacterial properties, especially at the lowest amount of extract to silver ratio (K ).
[Mh] Termos MeSH primário: Nanopartículas Metálicas/química
Prata/química
[Mh] Termos MeSH secundário: Difusão Dinâmica da Luz
Frutas/química
Frutas/metabolismo
Química Verde
Concentração de Íons de Hidrogênio
Microscopia Eletrônica de Transmissão
Extratos Vegetais/química
Punicaceae/química
Punicaceae/metabolismo
Espectrofotometria Ultravioleta
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Extracts); 3M4G523W1G (Silver)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180121
[St] Status:MEDLINE


  4 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29324295
[Au] Autor:Zarzuela R; Luna MJ; Gil MLA; Ortega MJ; Palacios-Santander JM; Naranjo-Rodríguez I; Delgado JJ; Cubillana-Aguilera LM
[Ad] Endereço:Departamento de Química Física, Facultad de Ciencias, Universidad de Cádiz, Avda. República Saharaui, S/N. 11510 Puerto Real, Cádiz, Spain. Electronic address: rafael.zarzuela@uca.es.
[Ti] Título:Analytical determination of the reducing and stabilization agents present in different Zostera noltii extracts used for the biosynthesis of gold nanoparticles.
[So] Source:J Photochem Photobiol B;179:32-38, 2018 Feb.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:The objective of this work was to ascertain the nature of the components responsible for the reducing and stabilizing properties of Zostera noltii extracts that lead to gold nanoparticle formation using chemical techniques of analysis. In order to achieve this aim, we try the synthesis of AuNPs with three different extracts from plants collected in the Bay of Cádiz (Spain). The n-butanol extract produced the best results. Taking this into account, four fractions were isolated by Sephadex LH-20 column chromatography from this extract and we studied their activity. The chemical study of these fractions led to the isolation of several flavone sulfates and these were identified as the species' responsible for the formation and stabilization of the AuNPs. Flavone sulfates were purified by high performance liquid chromatography and the structures were established by means of spectroscopic methods nuclear magnetic resonance and mass spectroscopy. AuNPs have an average lifetime of about 16weeks. Additionally, the morphology and crystalline phase of the gold nanoparticles were characterized by transmission electron microscopy. The composition of the nanoparticles was evaluated by electron diffraction and energy dispersive X-ray spectroscopy. An 88% of the gold nanoparticles has a diameter in the range 20-35nm, with an average size of 26±2nm.
[Mh] Termos MeSH primário: Ouro/química
Nanopartículas Metálicas/química
Extratos Vegetais/química
Zosteraceae/química
[Mh] Termos MeSH secundário: Cromatografia Líquida de Alta Pressão
Flavonoides/química
Flavonoides/isolamento & purificação
Química Verde
Espectroscopia de Ressonância Magnética
Microscopia Eletrônica de Transmissão
Conformação Molecular
Tamanho da Partícula
Espectrometria por Raios X
Zosteraceae/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Flavonoids); 0 (Plant Extracts); 7440-57-5 (Gold)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180223
[Lr] Data última revisão:
180223
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE


  5 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29272851
[Au] Autor:Zaheer Z
[Ad] Endereço:Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia. Electronic address: zzkhan@kau.edu.sa.
[Ti] Título:Biogenic synthesis, optical, catalytic, and in vitro antimicrobial potential of Ag-nanoparticles prepared using Palm date fruit extract.
[So] Source:J Photochem Photobiol B;178:584-592, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Silver nanoparticles (AgNPs) have been synthesized via green route using an aqueous extract of Palm date fruit pericarp extract. The appearance of the yellow color and the surface resonance plasmon (SRP) band at around 400-450nm in UV-Visible spectroscopy initially reveals the formation of AgNPs. The particle size, crystalline nature, and size distribution was confirmed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) ring patterns, energy dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS) techniques. The particles size ranged ca. 3nm to 30nm and are spherical in shape. The microbial activity of biogenic AgNPs was tested on clinical multiple drug resistance Staphylococcus aureus, Escherichia coli and Candida albicans reference strain. Zones of inhibition growth increases with [AgNPs]. The results suggest that the particle tested in this study certainly mediate the inhibition of bacterial and fungus growth. To overcome the serious problems related to environment like discharge of hazardous chemicals to water bodies, AgNPs have been found to be very important in the catalytic degradation of 4-nitrophenol. The rate of degradation strongly depends on the sun light exposure. Based on the chemical and kinetic studies, an attempt has been made to elucidate the mechanism of AgNPs formation.
[Mh] Termos MeSH primário: Anti-Infecciosos/síntese química
Nanopartículas Metálicas/química
Phoeniceae/química
Prata/química
[Mh] Termos MeSH secundário: Anti-Infecciosos/química
Anti-Infecciosos/farmacologia
Candida albicans/efeitos dos fármacos
Catálise
Difusão Dinâmica da Luz
Escherichia coli/efeitos dos fármacos
Frutas/química
Frutas/metabolismo
Química Verde
Nanopartículas Metálicas/toxicidade
Microscopia Eletrônica de Varredura
Nitrofenóis/química
Tamanho da Partícula
Phoeniceae/metabolismo
Fotólise/efeitos da radiação
Extratos Vegetais/química
Espectrometria por Raios X
Espectrofotometria
Staphylococcus aureus/efeitos dos fármacos
Luz Solar
Ressonância de Plasmônio de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Nitrophenols); 0 (Plant Extracts); 3M4G523W1G (Silver); Y92ZL45L4R (4-nitrophenol)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171223
[St] Status:MEDLINE


  6 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29253815
[Au] Autor:Sabela MI; Makhanya T; Kanchi S; Shahbaaz M; Idress D; Bisetty K
[Ad] Endereço:Department of Chemistry, Durban University of Technology, P.O Box 1334, Durban 4000, South Africa. Electronic address: myalos@dut.ac.za.
[Ti] Título:One-pot biosynthesis of silver nanoparticles using Iboza Riparia and Ilex Mitis for cytotoxicity on human embryonic kidney cells.
[So] Source:J Photochem Photobiol B;178:560-567, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Plant extracts continue gaining significant prominence in green synthesis of silver nanoparticles (AgNPs), due to their potential applications in nano-medicine and material engineering. This work reports on green synthesis of silver nanoparticles (AgNPs) from aqueous extracts of Iboza Riparia leaf and Ilex Mitis root bark with diterpenes (DTPs) and saponins (SPNs) as major components. After TEM, DLS, TGA/DSC, ATR, XRD and UV-Vis characterization, the relevant cytotoxicity studies were conducted with the MTT assay on human embryonic kidney cells (HEK293T) followed by antioxidant activity with ABTS. Overall, the AgNPs-DTPs (156nm) were found to be less toxic with 49.7% cell viability, while AgNPs-SPNs (50nm) and AgNPs-PVA (44nm) had cell viability of 40.8 and 28.0% respectively at 400µM. Based on the cytotoxicity and antioxidant activity, it is fair to report that these plant extracts have potential reducing and capping agents as they retain chemical properties on the surface of the nanoparticles.
[Mh] Termos MeSH primário: Ilex/química
Nanopartículas Metálicas/química
Prata/química
[Mh] Termos MeSH secundário: Antioxidantes/química
Varredura Diferencial de Calorimetria
Sobrevivência Celular/efeitos dos fármacos
Diterpenos/química
Diterpenos/isolamento & purificação
Química Verde
Células HEK293
Seres Humanos
Ilex/metabolismo
Nanopartículas Metálicas/toxicidade
Tamanho da Partícula
Extratos Vegetais/química
Folhas de Planta/química
Folhas de Planta/metabolismo
Raízes de Plantas/química
Raízes de Plantas/metabolismo
Saponinas/química
Saponinas/isolamento & purificação
Espectrofotometria Ultravioleta
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Diterpenes); 0 (Plant Extracts); 0 (Saponins); 3M4G523W1G (Silver)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171219
[St] Status:MEDLINE


  7 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29241121
[Au] Autor:Udayabhanu J; Kannan V; Tiwari M; Natesan G; Giovanni B; Perumal V
[Ad] Endereço:Department of Biotechnology, Periyar University, Periyar Palkalai Nagar, Salem 636 011, Tamil Nadu, India.
[Ti] Título:Nanotitania crystals induced efficient photocatalytic color degradation, antimicrobial and larvicidal activity.
[So] Source:J Photochem Photobiol B;178:496-504, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Textile industries release tonnes of harmful toxic dyes into the environment, causing severe effects on living organisms, including humans. Mosquitoes vectors spread important diseases which cause millions of human deaths worldwide. To control mosquitoes a number of synthetic mosquitocidal agents have been employed but all these pesticides pose harmful effects to human health and non-target species and also led to resistance development in treated vectors. Microbial strains are also developing resistance to the available antibiotics, this currently represents a major public health challenge. The current study is focused on the green synthesis of titanium dioxide nanoparticles (TiO NPs) using aqueous leaf extracts of Euphorbia hirta. Results suggested an efficient remedy for the above mentioned problems using TiO NPs against the dye degradation, mosquito larvae and bacterial pathogens. The fabrication of TiO NPs was confirmed by UV-visible spectroscopy, the biomolecules involved in the synthesis process were evidenced by Fourier transform infra-red spectroscopy (FT-IR), the crystalline structure was observed by using X-ray powder diffraction (XRD) analysis. Spherical shaped TiO NPs were recorded using field emission scanning electron microscopy (FESEM). Energy dispersive X-ray spectroscopy (EDX) results showed the elemental composition of TiO NPs. Enhanced rate of photocatalytic dye degradation efficacy was recorded in in methylene blue (95.8%) followed by crystal violet (86.7%). Antibacterial activity assays indicated growth inhibition was highest in Staphylococcus epidermidis and Proteus vulgaris. The LC of TiO NPs and E. hirta extract on Aedes aegypti larvae were 13.2mg/l and 81.2mg/l, while on Culex quinquefasciatus they were 6.89mg/l and 46.1mg/l respectively. Overall, based on the results of the present study, the green engineered nanotitania could be considered as novel and promising photocatalytic, antibacterial, and mosquitocidal agent.
[Mh] Termos MeSH primário: Anti-Infecciosos/química
Corantes/química
Nanopartículas Metálicas/química
Titânio/química
[Mh] Termos MeSH secundário: Aedes/efeitos dos fármacos
Aedes/crescimento & desenvolvimento
Animais
Anti-Infecciosos/farmacologia
Compostos Azo/química
Catálise
Escherichia coli/efeitos dos fármacos
Euphorbia/química
Euphorbia/metabolismo
Química Verde
Larva/efeitos dos fármacos
Luz
Nanopartículas Metálicas/toxicidade
Azul de Metileno/química
Fotólise/efeitos dos fármacos
Fotólise/efeitos da radiação
Extratos Vegetais/química
Folhas de Planta/química
Folhas de Planta/metabolismo
Staphylococcus aureus/efeitos dos fármacos
Staphylococcus epidermidis/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Azo Compounds); 0 (Coloring Agents); 0 (Plant Extracts); 15FIX9V2JP (titanium dioxide); 6B4TC34456 (methyl orange); D1JT611TNE (Titanium); T42P99266K (Methylene Blue)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171215
[St] Status:MEDLINE


  8 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29232572
[Au] Autor:Pandiyan N; Murugesan B; Sonamuthu J; Samayanan S; Mahalingam S
[Ad] Endereço:Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630 003, Tamil Nadu, India.
[Ti] Título:Facile biological synthetic strategy to morphologically aligned CeO /ZrO core nanoparticles using Justicia adhatoda extract and ionic liquid: Enhancement of its bio-medical properties.
[So] Source:J Photochem Photobiol B;178:481-488, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:In this study, a typical green synthesis route has approached for CeO /ZrO core metal oxide nanoparticles using ionic liquid mediated Justicia adhatoda extract. This synthesis method is carried out at simple room temperature condition to obtain the core metal oxide nanoparticles. XRD, SEM and TEM studies employed to study the crystalline and surface morphological properties under nucleation, growth, and aggregation processes. CeO /ZrO core metal oxides display agglomerated nano stick-like structure with 20-45nm size. GC-MS spectroscopy confirms the presence of vasicinone and N,N-Dimethylglycine present in the plant extract, which are capable of converting the corresponding metal ion precursor to CeO /ZrO core metal oxide nanoparticles. In FTIR, the corresponding stretching for Ce-O and Zr-O bands indicated at 498 and 416cm and Raman spectroscopy also supports typical stretching frequencies at 463 and 160cm . Band gap energy of the CeO /ZrO core metal oxide is 3.37eV calculated from UV- DRS spectroscopy. The anti-bacterial studies performed against a set of bacterial strains the result showed that core metal oxide nanoparticles more susceptible to gram-positive (G+) bacteria than gram-negative (G-) bacteria. A unique feature of the antioxidant behaviors core metal oxides reduces the concentration of DPPH radical up to 89%. The CeO /ZrO core metal oxide nanoparticles control the S. marcescent bio-film formation and restrict the quorum sensing. The toxicology behavior of CeO /ZrO core metal oxide NPs is found due to the high oxygen site vacancies, ROS formation, smallest particle size and higher surface area. This type of green synthesis route may efficient and the core metal oxide nanoparticles will possess a good bio-medical agent in future.
[Mh] Termos MeSH primário: Antibacterianos/química
Cério/química
Líquidos Iônicos/química
Justicia/química
Nanopartículas Metálicas/química
Zircônio/química
[Mh] Termos MeSH secundário: Antibacterianos/farmacologia
Antioxidantes/química
Biofilmes/efeitos dos fármacos
Bactérias Gram-Negativas/efeitos dos fármacos
Bactérias Gram-Positivas/efeitos dos fármacos
Química Verde
Justicia/metabolismo
Nanopartículas Metálicas/toxicidade
Microscopia Eletrônica de Varredura
Tamanho da Partícula
Extratos Vegetais/química
Folhas de Planta/química
Folhas de Planta/metabolismo
Percepção de Quorum/efeitos dos fármacos
Serratia marcescens/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Antioxidants); 0 (Ionic Liquids); 0 (Plant Extracts); 30K4522N6T (Cerium); 619G5K328Y (ceric oxide); C6V6S92N3C (Zirconium); S38N85C5G0 (zirconium oxide)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE


  9 / 2257 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29223813
[Au] Autor:Zhou Y; Tang RC
[Ad] Endereço:National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Renai Road, Suzhou 215123, China.
[Ti] Título:Facile and eco-friendly fabrication of AgNPs coated silk for antibacterial and antioxidant textiles using honeysuckle extract.
[So] Source:J Photochem Photobiol B;178:463-471, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Recently, there is a growing trend towards the functionalization of silk through nanotechnology for the prevention of fiber damage from microbial attack and the enhancement of hygienic aspects. Considering sustainable development and environmental protection, the eco-friendly fabrication of silver nanoparticles (AgNPs)-modified silk using natural extracts has currently become a hot research area. This study presents a facile strategy for the fabrication of colorful and multifunctional silk fabric using biogenic AgNPs prepared by honeysuckle extract as natural reductant and stabilizing agents. The influences of pH and reactant concentrations on the AgNPs synthesis were investigated. The color characteristics and functionalities of AgNPs treated silk were evaluated. The results revealed that the particle size of AgNPs decreased with increasing pH. The diameter of AgNPs decreased with increasing amount of honeysuckle extract and reducing amount of silver nitrate. The transmission electron microscopy image showed that the AgNPs were spherical in shape with a narrow size distribution. The treated silk showed excellent antibacterial activities against E. coli and S. aureus, and certain antioxidant activity. Both of the antibacterial and antioxidant activities were well maintained even after 30 washing cycles. This work provides a sustainable and eco-friendly approach to the fabrication of AgNPs coated silk for colorful and long-term multifunctional textiles using honeysuckle extract.
[Mh] Termos MeSH primário: Antibacterianos/química
Antioxidantes/química
Lonicera/química
Nanopartículas Metálicas/química
Seda/química
[Mh] Termos MeSH secundário: Antibacterianos/farmacologia
Escherichia coli/efeitos dos fármacos
Química Verde
Concentração de Íons de Hidrogênio
Lonicera/metabolismo
Testes de Sensibilidade Microbiana
Microscopia Eletrônica de Transmissão
Tamanho da Partícula
Extratos Vegetais/química
Prata/química
Staphylococcus aureus/efeitos dos fármacos
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Antioxidants); 0 (Plant Extracts); 0 (Silk); 3M4G523W1G (Silver)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171211
[St] Status:MEDLINE


  10 / 2257 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29223119
[Au] Autor:Chai SH; Wang Y; Qiao Y; Wang P; Li Q; Xia C; Ju M
[Ad] Endereço:Department of General Surgery, Linyi Center Hospital, Linyi 276400, Shandong, China.
[Ti] Título:Bio fabrication of silver nanoparticles as an effective wound healing agent in the wound care after anorectal surgery.
[So] Source:J Photochem Photobiol B;178:457-462, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Nowadays biological mediated syntheses of metal nanoparticles were utilized for various life caring applications. Our research group utilized Delonix elata leaf aqueous extract for the synthesis of silver nanoparticles. Further the synthesized silver nanoparticles were subjected for various characterization techniques which resulted in spherically agglomerated with biological components entrapped in it and also with average particle size of 36nm were studied and reported. Later the synthesized silver nanoparticles were subjected for wound healing property by size of measured lessions and body weight which results in better wound healing property were studied and discussed.
[Mh] Termos MeSH primário: Nanopartículas Metálicas/química
Prata/química
Cicatrização/fisiologia
[Mh] Termos MeSH secundário: Bandagens
Difusão Dinâmica da Luz
Fabaceae/química
Fabaceae/metabolismo
Química Verde
Seres Humanos
Nanopartículas Metálicas/uso terapêutico
Tamanho da Partícula
Extratos Vegetais/química
Folhas de Planta/química
Folhas de Planta/metabolismo
Reto/cirurgia
Espectroscopia de Infravermelho com Transformada de Fourier
Difração de Raios X
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Extracts); 3M4G523W1G (Silver)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171210
[St] Status:MEDLINE



página 1 de 226 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