RSS 1.0Artigos - Bioquímica e Tecnologia - IQ
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Study on the piezoelectric behavior and structural changes of strontium doped PZT ceramics
; ; ; Longo, Elson
; Zaghete, Maria A. ; (Materials Science Forum, 2016) [Trabalho apresentado em evento]
Some piezoelectric properties of lead zirconate titanate PbZr0.53Ti0.47O3 ceramic samples sintered at 1100ºC for 3 hours has been investigated in this work and compared to the strontium modification at 0.2, 0.4, and 0.6 ... -
High Coverage of H2, CH4, NH3 and H2O on (110) SnO2 Nanotubes
; ; ; ; ; Longo, Elson (Engineering Materials, 2020) [Capítulo de livro]
We start with short review of inorganic nanotubes leading to gas sensors, which among others, can be important application of semiconductor oxides. We investigate the interaction of H2, CH4, NH3 and H2O gases at high ... -
Microstructure and Thermal Conductivity of Porous Al2 O3-ZrO2 Ceramics
; ; ; Longo, Elson; ; ; ; ; ; (Materials Science Forum, 2015) [Trabalho apresentado em evento]
The improvement on the development of porous ceramic materials has leaded to new technologies in thermal insulation, for example, composite materials for better performance of pressure vessels in rocket engines. Within ... -
What different physical techniques can disclose about disruptions on membrane structure caused by the antimicrobial peptide Hylin a1 and a more positively charged analogue
; ; ; Cilli, Eduardo M.; (Chemistry and Physics of Lipids, 2022) [Artigo]
The present work monitors structural changes in anionic membranes (DPPG; 1,2-dipalmitoyl-sn-glycero-3-phospho-(1′-rac-glycerol)) caused by the native antimicrobial peptide (AMP) Hylin a1 (Hya1; IFGAILPLALGALKNLIK-NH2) and ... -
PyrGF and GSTLN peptides enhance pravastatin's inhibition of 3-hydroxy-3-methyl-glutaryl coenzyme
da Silva, Jaff Ribeiro; de Cerqueira e Silva, Mariana Barros ; ; ; ; ; ; Cilli, Eduardo Maffud (Food Bioscience, 2021) [Artigo]
Two newly designed peptides, Pyr-GF and GSTLN, enhance pravastatin inhibition of 3-hydroxy-3-methyl-glutaryl coenzyme A reductase (HMGCoAR). In silico experiments have demonstrated the interaction of these peptides with ... -
Biosynthesis and recent advances in production of bacterial cellulose
Donini, Ígor A.N.; de Salvi, Denise T.B. ; Fukumoto, Fabiana K. ; ; Barud, Hernane S. ; Marchetto, Reinaldo ; Messaddeq, Younes ; (Ecletica Quimica, 2010) [Artigo]
The present paper discusses the recent advances about the biosynthesis and production of bacterial cellulose (BC), from gram-negative, aerobic and acetic acid Gluconcetobacter xylinus (Gx). The BC differs from his vegetal ... -
IAF, QGF, and QDF peptides exhibit cholesterol-lowering activity through a statin-like HMG-CoA reductase regulation mechanism: In silico and in vitro approach
Silva, Mariana; ; ; ; ; ; Silva, Jaff ; ; ; et al. (International Journal of Molecular Sciences, 2021) [Artigo]
In this study, in silico approaches are employed to investigate the binding mechanism of peptides derived from cowpea β-vignin and HMG-CoA reductase. With the obtained information, we designed synthetic peptides to evaluate ... -
Recent advances in SARS-CoV-2 Spike protein and RBD mutations comparison between new variants Alpha (B.1.1.7, United Kingdom), Beta (B.1.351, South Africa), Gamma (P.1, Brazil) and Delta (B.1.617.2, India)
Sanches, Paulo R.S.; ; ; Bittar, Cíntia ; Freitas Calmon, Marilia ; Rahal, Paula ; Cilli, Eduardo M. (Journal of Virus Eradication, 2021) [Artigo]
New variants of SARS-CoV-2 Alpha (B.1.1.7); Beta (B.1.351) Gamma (P.1) and Delta (B.1.617.2) quickly spread in the UK, South Africa, Brazil and India, respectively. To address whether mutations in SARS-CoV-2 RBD spike ... -
Effect of C-terminal and N-terminal dimerization and alanine scanning on antibacterial activity of the analogs of the peptide p-BthTX-I
Santos-Filho, Norival Alves; ; Pereira, Marina Rodrigues ; Piccoli, Julia Pinto ; Almeida, Larissa Mathias Teizen ; Leal, Thainá Cristina ; ; Cilli, Eduardo Maffud (Peptide Science, 2022) [Artigo]
The peptide (p-BthTX-I)2 [(KKYRYHLKPFCKK)2] and its analog des-Lys12,Lys13-(p-BthTX-I)2 [(KKYRYHLKPFC)2] showed activity against bacteria and potential specificity against prokaryotic cells. In this study, we synthesized ... -
Nanostructured functional peptide films and their application in C-reactive protein immunosensors
; ; ; Cilli, Eduardo M. (Bioelectrochemistry, 2021) [Artigo]
Peptides with an active redox molecule are incorporated into nanostructured films for electrochemical biosensors with stable and controllable physicochemical properties. In this study, we synthesized three ferrocene ... -
Preface
Longo, Elson; de Almeida La Porta, Felipe (Recent Advances in Complex Functional Materials: From Design to Application, 2017) [Editorial]
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Bridging structure and real-space topology: Understanding complex molecules and solid-state materials
; ; ; ; Longo, Elson (Recent Advances in Complex Functional Materials: From Design to Application, 2017) [Capítulo de livro]
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Structural effects on perovskite phase formation for pzt powders obtained by polymeric precursor method
; ; ; ; ; ; Longo, Elson; (Materials Science Forum, 2018) [Trabalho apresentado em evento]
Many synthesis methods are available to obtain a set of specific characteristics for lead zirconate titanate (PZT) piezoelectric ceramic powders. In this work, we have successfully prepared PZT powder samples through the ... -
Recent advances in complex functional materials: From design to application
Longo, Elson; de Almeida La Porta, Felipe (Recent Advances in Complex Functional Materials: From Design to Application, 2017) [Livro]
In this book we explore new approaches to understanding the physical and chemical properties of emergent complex functional materials, revealing a close relationship between their structures and properties at the molecular ... -
Antimicrobial Peptide K0-W6-Hya1 Induces Stable Structurally Modified Lipid Domains in Anionic Membranes
; ; ; Cilli, Eduardo M.; ; ; (Langmuir, 2018) [Artigo]
Considering the known different mode of action of antimicrobial peptides in zwitterionic and anionic cell membranes, the present work compares the action of the antimicrobial peptide K0-W6-Hya1 (KIFGAIWPLALGALKNLIK-NH2) ... -
Formation of photoluminescents meso- and nanocrystals by hydrothermal microwave-assisted method
Eliziário, S. A.; Xavier, C. S. ; Longo, E. ; Varela, J. A. (Proceedings of the 12th International Conference on Microwave and High Frequency Heating, AMPERE 2009, 2009) [Trabalho apresentado em evento]
In this letter, we report on the formation of mesostructures by the microwave-hydrothermal method. These materials were analyzed by X-ray diffraction (XRD), Field-emission gum scanning electron microscopy (FEG-SEM) and ... -
Influence of calcium concentration on the structural and electrical properties of PZT ceramic
; ; Zaghete, Maria A.; Cilense, Mário ; Longo, Elson ; ; ; ; (Materials Science Forum, 2015) [Trabalho apresentado em evento]
Lead zirconate titanate, with Zr/Ti ratio of 53/47 was prepared by the polymeric precursor method. The powders were doped with 0, 0.2, 0.4 end 0.6 mol% of Ca2+ and characterized by XRD. The percentages of tetragonal and ... -
Synthesis and characterization of novel pH sensitive PAAM-PMAA-CMC hydrogels and their applications in the controlled release of fertilizer
Aouada, Fauze A.; ; ; Longo, Elson ; Mattoso, Luiz H.C. (Hydrogels: Synthesis, Characterization and Applications, 2012) [Capítulo de livro]
Recently, the applications of hydrogels as a carrier vehicle for the controlled release of fertilizers in the agricultural field have been extensively proposed due to the unique properties of these materials, such as their ... -
The influence rare earth ions doping on the photoluminescent properties of indium hydroxide
; ; ; ; ; Abreu, M. F.C.; ; Varela, J. A. ; Longo, E. (Indium: Properties, Technological Applications and Health Issues, 2013) [Capítulo de livro]
Crystalline rare earth ions -doped indium hydroxide (In(OH)3:RE3+) nanostructures were prepared by a rapid and efficient Microwave-Assisted Hydrothermal (MAH) method. The influence of doping rare earth (RE) ions (Eu, Tb ... -
Produção de pigmentos inorgânicos a partir da solução de cloreto ferroso proveniente das linhas de decapagem contínua da CSN
; ; ; Longo, Elson (65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010, 2010) [Trabalho apresentado em evento]
In this work is analyzed the synthesis of maghemite, γ - Fe 2O3, magnetite, Fe304, goethite, α - FeOOH, and hematite, α - Fe2O3, by application of excess of iron chlorate ionic aqueous solution from Continuous Pickling ...