Dyes In Dna
Mostrando 1-12 de 110 artigos, teses e dissertações.
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1. Catostylus tagi: partial rDNA sequencing and characterisation of nematocyte structures using two improvements in jellyfish sample preparation
AbstractBackground More than 200 Scyphozoa species have been described, but few have been properly studied regarding their chemical and genetic characteristics.Catostylus tagi, an edible Scyphozoa and the sole European Catostylidae, occurs in summer at Tagus and Sado estuaries. Neither a systematic comparison between the two Catostyluscommunities nor a chemi
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 10/11/2015
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2. Different methods to quantify Listeria monocytogenesbiofilms cells showed different profile in their viability
Listeria monocytogenes is a foodborne pathogen able to adhere and to form biofilms in several materials commonly present in food processing plants. The aim of this study was to evaluate the resistance of Listeria monocytogenes attached to abiotic surface, after treatment with sanitizers, by culture method, microscopy and Quantitative Real Time Polymerase Cha
Braz. J. Microbiol.. Publicado em: 2015-03
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3. Isolamento de bactérias produtoras de polihidroxialcanoatos e caracterização molecular de sua PHA sintase. / Isolation of polyhydroxyalkanoates producing bacteria and molecular characterization of their PHA synthase.
A total of 1520 isolates from domestic sewage sludge or soil of preserved area were evaluated in regards of PHA production using the lipophilic Nile Red A or Sudan Black B dyes, allowing the detection of 261 isolates. PHA production experiments revealed P3HB producing isolates at higher amounts than the strain Burkholderia sacchari LFM101 and PHAMCL producti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2011
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4. Investigation of routes of biotransformation of the chromophore group and preliminary toxicological evaluation of disperse dyes sudan III and disperse yellow 9. / Investigação das rotas de biotransformação do grupo cromóforo e avaliação toxicológica parcial dos corantes dispersos sudan III e disperso amarelo 9
Corantes e pigmentos são utilizados no mundo todo para alterar a percepção visual de diversos bens de consumo. Dentre esses compostos se destacam os corantes que possuem grupamentos azo ou nitro como cromóforo. Muitas dessas substâncias são potencialmente tóxicas, seja na sua forma original seja após a biotransformação, com ênfase aos efeitos muta
Publicado em: 2010
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5. Clonagem, expressão heteróloga e caracterização molecular de um gene de lacase de Pycnoporus sanguineus
Lacases are enzymes with potential application in a set of industrial processes. Some authors described their use in bioremediation of phenolic compounds of pharmaceutical and dyes industries and in the removal of lignin of the cellulose pulp. In this study a laccase from Pycnoporus sanguineus previously described by Garcia and co-workers 2006), was expresse
Publicado em: 2009
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6. Estudos sobre a intercalação dos corantes azul brilhante-FCF e azul de coomassie G-250 em ácido desoxirribonucléico (DNA)
Este trabalho versa sobre o processo de intercalação de dois tipos de corantes em DNA, o Azul brilhante FCF, um corante alimentício e o Azul de Coomassie G-250, que é habitualmente usado em ensaios bioquímicos. Dados obtidos através de ensaios de espectrofotometria de absorção na região do UV/Vis e de infravermelho com relação ao complexo formado
Publicado em: 2007
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7. Effects of environment, micelles and DNA interactions on the spectroscopies characteristics of bichromophoric cyanine dyes. / Efeitos do meio e da interação com DNA e Micelas nas características espectrais dos corantes ciânicos com dois cromóforos
A terapia fotodinâmica (PDT) consiste em introduzir no organismo um composto fotoativo (fotossensibilizador) e irradiar o local a ser tratado com a luz visível. Este procedimento permite obter a(s) forma(s) ativa(s) do composto que tem a capacidade de matar células neoplásicas, bem como fungos e bactérias. Algumas desvantagens dos fotossensibilizadores
Publicado em: 2007
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8. Action of photosensitizers dyes in homogeneous and liposomal microheterogeneous medium to control Streptococcus mutans growing / Ação de corantes fotossensíveis em meio homogêneo e micro heterogêneo de lipossomos no controle do crescimento de Streptococcus mutans
Unbalance in the development of the mouth macrobiota can originate some pathologies, dental cavity being among them - a chronic disease - contagious, of multifactorial etiology, but extremely related to the Streptococcus mutans bacteria, which, through its fermentative metabolism, destroys tooth mineralized structures. Besides that, the increase in resistanc
Publicado em: 2006
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9. Atenuação da forma leveduriforme do Paracoccidioides Brasiliensis por irradiação gama / Attenuation of yeast form of Paracoccidiodes brasiliensis by gamma irradiation
Paracoccidioides brasiliensis is the agent of paracoccidioidomycosis, the most prevalent mycosis in Latin America, and currently there is no effective vaccine. The aim of this work was to attenuate the yeast form of P. brasiliensis by gamma irradiation for further studies on vaccine research. P. brasiliensis (strain Pb-18) cultures were irradiated at doses b
Publicado em: 2006
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10. Estudo das características espectroscópicas dos corantes ciânicos com dois cromóforos na interação com DNA: efeitos da força iônica. / Spectroscopic studies of bichromophoric cyanine dyes (BCD) in their interaction with DNA: effect of ionic strength.
Cancer is a pathology responsible for a great number of deaths. The conventional methods of treatment, chemotherapy and radiotherapy, are not always efficient, and multiple side effects are intrinsic for these therapies. In early 70s appeared a new method called Photodynamic Therapy (PDT), that shows few side effects as compared with conventional thera
Publicado em: 2002
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11. Estudos sobre a estabilidade e estrutura do DNA atraves da fotofisica de corantes intercalados
In this work one used intercalated and fluorescent dyes to probe alterations in the DNA structure due to change in its environment, using absorption and emission spectroscopy. Some of these alterations can be attributed to dipolar interactions between different dyes that are responsible for energy transfer. This process can be used to obtain the distance amo
Publicado em: 1998
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12. Groove-binding unsymmetrical cyanine dyes for staining of DNA: dissociation rates in free solution and electrophoresis gels
The rates of dissociation of three non-intercalative unsymmetrical cyanine dyes, BEBO, BETO and BOXTO from mixed-sequence DNA have been studied with the DNA either free in solution or in confining porous agarose gels. The properties of the new dyes were compared to the related intercalating dyes BO, BO-PRO, TO-PRO and YO-PRO. With DNA in solution, BEBO disso
Oxford University Press.