Search Results - "DE OLIVEIRA, C. Fernando"
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Determination of amylose content in starch using Raman spectroscopy and multivariate calibration analysis
Published in Analytical and bioanalytical chemistry (01-08-2010)“…Fourier transform Raman spectroscopy and chemometric tools have been used for exploratory analysis of pure corn and cassava starch samples and mixtures of both…”
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Revisiting the Raman Spectra of Carbonate Minerals
Published in Minerals (Basel) (01-11-2023)“…This work presents a new discussion about the vibrational properties of the carbonate ion displayed in several different environments. The microparameters…”
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3
Direct UV-Triggered Thiol–ene Cross-Linking of Electrospun Polyester Fibers from Unsaturated Poly(macrolactone)s and Their Drug Loading by Solvent Swelling
Published in Biomacromolecules (11-12-2017)“…Electrospinning is considered a relatively simple and versatile technique to form high porosity porous scaffolds with micron to nanoscale fibers for biomedical…”
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4
Vibrational Analysis of Natural Rhodochrosites by Raman Spectroscopy
Published in Minerals (Basel) (01-07-2024)“…This study investigates an unusual behavior observed in the Raman spectra of natural rhodochrosites under ambient conditions and varying temperature and…”
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5
Facile Approach to Covalent Copolypeptide Hydrogels and Hybrid Organohydrogels
Published in ACS macro letters (21-08-2018)“…Crosslinking of tryptophan (Trp) containing copolypeptides with varying ratios of benzyl-l-glutamate (BLG) and Nα-(carbobenzyloxy)-l-lysine (Z-Lys) is achieved…”
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The Diversity of Linear Conjugated Polyenes and Colours in Nature: Raman Spectroscopy as a Diagnostic Tool
Published in Chemphyschem (03-02-2021)“…This review is centered on the linear conjugated polyenes, which encompasses chromatic biomolecules, such as carotenoids, polyunsaturated aldehydes and…”
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Carotenes and carotenoids in natural biological samples: a Raman spectroscopic analysis
Published in Journal of Raman spectroscopy (01-06-2010)“…Raman spectroscopic studies of a range of naturally occurring carotenoids in over 50 specimens of plant tissue and a range of standard extracts have been…”
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History, evolution, and environmental impact of biodiesel in Brazil: A review
Published in Renewable & sustainable energy reviews (01-08-2017)“…In the last decade several scientific papers have dealt with the damages fossil fuels did to our environment. Carbon dioxide has been blamed the chief culprit…”
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DEVELOPMENT AND VALIDATION OF A METHODOLOGY FOR QUANTIFICATION OF WHEY PROTEIN FRACTIONS IN MICROPARTICULATE INGREDIENTS
Published in Química Nova (01-01-2025)“…Microparticulated whey protein can be used as a fat substitute in foods to enhance their nutritional value and improve their sensory and rheological…”
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10
Social isolation and associated factors in middle‐aged and older persons in Brazil
Published in Psychogeriatrics (01-01-2021)Get full text
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11
New Insight on the Structural Trends of Polyphosphate Coacervation Processes
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (19-06-2008)“…In this study new compositions of polyphosphate coacervates were obtained with the ions Ni2+ and Co2+. Samples of the glassy systems were prepared with…”
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Raman spectroscopy as a tool in differentiating conjugated polyenes from synthetic and natural sources
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (05-01-2015)“…[Display omitted] •Pigments derived from polyenals were unequivocally identified by Raman spectroscopy.•Evaluation of differences and similarities between…”
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13
WATER VERSUS LACTOSE SOLUTION AS A DISPERSION MEDIUM FOR PARTICLE ANALYSIS IN SWEETENED CONDENSED MILK BY LASER DIFFRACTION
Published in Química Nova (01-08-2019)“…Sweetened condensed milk contains various dispersed particles, such as proteins, fats, and lactose, all of which make it highly viscous. During sweetened…”
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Spectroscopic and Theoretical Study of the “Azo”-Dye E124 in Condensate Phase: Evidence of a Dominant Hydrazo Form
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (14-01-2010)“…Spectroscopic techniques, including Raman, IR, UV/vis, and NMR were used to characterize the samples of the azo dye Ponceau 4R (also known as E124, New…”
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15
Lactose crystallisation in concentrated whey: the influence of vat type
Published in International journal of dairy technology (01-05-2018)“…This work aimed to describe the rate of lactose crystallisation in concentrated whey carried out using two different crystallisers, utilising central or…”
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Raman spectroscopy as a tool for polyunsaturated compound characterization in gastropod and limnic terrestrial shell specimens
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01-10-2013)“…[Display omitted] •The colours of the Brazilian mollusc shells are due to the polyenes namely psittacofulvins.•The inorganic components present specific bands…”
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Role of the Substituent Effect over the Squarate Oxocarbonic Ring: Spectroscopy, Crystal Structure, and Density Functional Theory Calculations of 1,2-Dianilinosquairane
Published in The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory (23-09-2010)“…This work presents the crystal structure and the investigation under a supramolecular perspective of a squaric acid derivative obtained from the replacement of…”
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Raman spectroscopic analysis of the interaction between squaric acid and dimethylsulfoxide
Published in Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (01-07-2013)“…•This work deals with the investigation of squaric acid in DMSO by Raman spectroscopy.•Solvent–solute interactions are analyzed by the dissociated and…”
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Synthesis of bilayer films from regenerated cellulose nanofibers and poly(globalide) for skin tissue engineering applications
Published in Carbohydrate polymers (15-01-2021)“…[Display omitted] •Amphiphilic bilayer films were synthesized via layer by layer deposition.•Regenerated cellulose nanofibers and poly(globalide) were used to…”
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The Brazilian social fuel stamp program: Few strikes, many bloopers and stumbles
Published in Renewable & sustainable energy reviews (01-03-2019)“…Right after the Brazilian federal government started defending a platform of social inclusion, income redistribution, and economic development of the North and…”
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