RSS 1.0Artigos - Bioquímica e Tecnologia - IQ
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Photodynamic and peptide-based strategy to inhibit Gram-positive bacterial biofilm formation
de Freitas, Laura Marise
; ; Cilli, Eduardo Maffud ; ; Fontana, Carla Raquel ; (Biofouling, 2019) [Artigo]
The self-produced extracellular polymeric matrix of biofilms renders them difficult to eliminate once they are established. This makes the inhibition of biofilm formation key to successful treatment of biofilm infection. ... -
Laser and electron beam-induced formation of Ag/Cr structures on Ag 2 CrO 4
; ; ; ; ; ; ; ; ; Longo, E. (Physical Chemistry Chemical Physics, 2019) [Artigo]
The interactions of silver chromate (Ag 2 CrO 4 ) with a femtosecond (fs) laser and electron beam irradiations were investigated. For the first time, the growth and coalescence of metallic Ag nanoparticles (NPs) on an Ag ... -
The cyclic peptide labaditin does not alter the outer membrane integrity of Salmonella enterica serovar Typhimurium
; ; ; Cilli, Eduardo M.; ; (Scientific Reports, 2019) [Artigo]
Antimicrobial peptides are a promising class of new antibiotics with the ability to kill bacteria by disrupting their cell membrane, which is especially difficult for Gram-negative bacteria whose cell wall contains an outer ... -
Field effect in molecule-gated switches and the role of target-to-receptor size ratio in biosensor sensitivity
Garrote, Beatriz L.; Fernandes, Flavio C.B. ; Cilli, Eduardo M. ; Bueno, Paulo R. (Biosensors and Bioelectronics, 2019) [Artigo]
We demonstrated here that molecular redox films are electrochemical capacitive devices possessing specific field effect in which molecular moieties within films act as sensitive gates. We confirm that the field effect ... -
Electrical transport properties and complex impedance investigation of Fe 3+ and La 3+ co-doping (Pb,Sr)TiO 3 thin films
Pontes, F. M.; Pontes, D. S.L. ; ; ; ; Longo, E. (Materials Science and Engineering B: Solid-State Materials for Advanced Technology, 2018) [Artigo]
This work investigates the impact of Fe 3+ and La 3+ co-doping on the structural, electrical transport and dielectric relaxation properties of PST thin films. XRD and Raman spectroscopy data show that the Fe 3+ and La 3+ ... -
Morphology and optical properties of SrWO 4 powders synthesized by the coprecipitation and polymeric precursor methods
; ; ; Longo, Elson; (Recent Advances in Complex Functional Materials: From Design to Application, 2017) [Capítulo de livro]
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SrSnO3 perovskite obtained by the modified Pechini method—Insights about its photocatalytic activity
; ; Longo, Elson; ; ; ; (Journal of Photochemistry and Photobiology A: Chemistry, 2019) [Artigo]
The use of SrSnO3 as a photocatalyst in different applications has been growing in recent years, particularly for degradation of organic dyes. In the present work, SrSnO3 catalyst was synthesized by the modified Pechini ... -
Origin and diversification of Xanthomonas citri subsp. citri pathotypes revealed by inclusive phylogenomic, dating, and biogeographic analyses
; ; ; ; ; Facincani, Agda Paula; Ferreira, Rafael Marini ; ; ; Varani, Alessandro M. et al. (BMC Genomics, 2019) [Artigo]
Background: Xanthomonas citri subsp. citri pathotypes cause bacterial citrus canker, being responsible for severe agricultural losses worldwide. The A pathotype has a broad host spectrum, while A∗and Aw are more restricted ... -
Nutritional value changes in response to temperature, microalgae mono and mixed cultures
; ; ; ; ; Machado, Levi Pompermayer (Acta Limnologica Brasiliensia, 2019) [Artigo]
Aim: The response of mixed cultures and monocultures of Pseudopediastrum boryanum (Turpin) E. Hegewald and Scenedesmus obliquus (Turpin) Kützing was assessed in the laboratory at three different temperatures: 20, 30 and ... -
Impaired antioxidant capacity causes a disruption of metabolic homeostasis in sickle erythrocytes
Chaves, Nayara Alves; ; ; ; ; Bonini Domingos, Claudia Regina ; da Silva, Danilo Grünig Humberto (Free Radical Biology and Medicine, 2019) [Artigo]
This study examined particularly relevant redox pathways such as glycolysis, pentose phosphate pathway (PPP), metHb reductase and nucleotide metabolism, in order to better address how sickle cells deal with redox metabolism ... -
Differential expression of RNA exosome subunits in the amphibian Lithobates catesbeianus during reproductive and non-reproductive periods
Luz, J. S.; ; Baggio, A. ; Santoni, M. M. ; ; Valentini, S. R. ; Sasso-Cerri, E. ; (BMC Research Notes, 2019) [Artigo]
Objective: The RNA exosome is an evolutionarily conserved 3′-5′ exoribonucleolytic protein complex involved in processing and degradation of different classes of nuclear and cytoplasmic RNAs, and, therefore, important for ... -
Functionalized nanoparticles as adjuvant to increase the cytotoxicity of metallodrugs toward tumor cells
(New Journal of Chemistry, 2019) [Artigo]Functionalized MCM-41 is a class of new nanoporous biomaterials extensively studied as drug carriers of a diversity of therapeutic agents due to its suitable properties. In the present study, two oxindolimine complexes ... -
Palladium orthometallated complexes containing acetophenoneoxime: Synthesis, crystal structures and hirshfeld surface analysis
Bozza, Gabriela F.; de Farias, Renan L. ; de Souza, Ronan F.F. ; ; ; ; ; Mauro, Antonio E. ; Netto, Adelino V.G. (Journal of Molecular Structure, 2019) [Artigo]
The bridge-splitting reaction between [Pd(C2,N-aphox)(μ-Cl)]2 and phosphines (L), in a 1:2 ratio, yielded neutral mononuclear cyclopalladated compounds of the type [PdCl(C2,N-aphox)(L)] {aphox = acetophenoneoxime; L = ... -
Calming Down Mast Cells with Ketotifen: A Potential Strategy for Multiple Sclerosis Therapy?
Pinke, Karen Henriette; Zorzella-Pezavento, Sofia Fernanda Gonçalves ; de Campos Fraga-Silva, Thais Fernanda ; Mimura, Luiza Ayumi Nishiyama ; de Oliveira, Larissa Ragozo Cardoso ; Ishikawa, Larissa Lumi Watanabe ; Fernandes, Ana Angélica Henrique ; ; Sartori, Alexandrina (Neurotherapeutics, 2019) [Artigo]
Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system (CNS) characterized by extensive inflammation, demyelination, axonal loss and gliosis. Evidence indicates that mast cells contribute to ... -
Bioactive amines screening in four genotypes of thermally processed cauliflower
Diamante, Marla Silvia; Borges, Cristine Vanz ; ; Minatel, Igor Otavio ; Corrêa, Camila Renata ; ; Lima, Giuseppina Pace Pereira (Antioxidants, 2019) [Artigo]
Biogenic amines are important indicators of food quality with recognized antioxidant capacity. Diets that are rich in these compounds promote several benefits for human health, although the consumption in excess may result ... -
Photodynamic inactivation of Candida albicans and Candida tropicalis with aluminum phthalocyanine chloride nanoemulsion
; ; ; Primo, Fernando Lucas; ; ; (Fungal Biology, 2019) [Artigo]
The in vitro susceptibilities of Candida albicans and Candida tropicalis to Antimicrobial Photodynamic Treatment with aluminum phthalocyanine chloride in nanoemulsion (ClAlPc/NE) were investigated. PS concentration- and ... -
Solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide for Cu2+ preconcentration
; Rodrigues, José Guilherme A.; ; ; ; ; Ribeiro, Emerson S. ; (Journal of the Brazilian Chemical Society, 2019) [Artigo]
The present work aims at studying the preconcentration of Cu2+ ions by solid phase extraction using SiO2/Al2O3/TiO2 ternary oxide as adsorbent material. This methodology consists of the affinity of the analyte for the ... -
Computational studies, design and synthesis of Pd(II)-based complexes: Allosteric inhibitors of the Human Topoisomerase-IIα
; Farias, Renan L.; ; Batista, Victor S. ; Nascimento-Júnior, Nailton M. ; Garrido, Saulo S. ; ; ; ; et al. (Journal of Inorganic Biochemistry, 2019) [Artigo]
Herein, a robust docking protocol was developed by using a low-cost workflow to highlight the modulation at ATPase domain from Human Topoisomerase-IIα (TOP2A) towards four novel Pd(II)-complexes bearing N,S-donor ligands. ... -
Genetic Diversity of ‘Candidatus Liberibacter asiaticus’ Revealed by Short Tandem Repeats and Prophage Typing Indicates Population Homogeneity in Brazil
; ; ; ; ; Wulff, Nelson Arno (Phytopathology, 2019) [Artigo]
‘Candidatus Liberibacter asiaticus’ is the most common huanglongbing-associated bacteria, being present in Asia, South, Central, and North America. Genomic approaches enabled sequencing of ‘Ca. L. asiaticus’ genomes, ... -
Evaluation of biogenic amines and nitrate in raw and pickled jurubeba (Solanum paniculatum L.) fruit
da Silva, Mônica Bartira; Rodrigues, Luan Fernando Ormond Sobreira ; Monteiro, Gean Charles ; Monar, Giovana Rafaela Stelzer ; ; ; Minatel, Igor Otavio ; Lima, Giuseppina Pace Pereira (Journal of Food Science and Technology, 2019) [Artigo]
The presence of biogenic amines, such as histamine and tyramine, in pickled food can cause health problems, such as allergies. However, other bioactive amines may be present and can induce some diseases. Some biogenic ...