A5026546793- Electrospun Nanofibers in Biomedical Applications
- biodegradable polymer synthesis and properties
- Bone Tissue Engineering Materials
- Additive Manufacturing and 3D Printing Technologies
- Nanocomposite Films for Food Packaging
- Advanced Sensor and Energy Harvesting Materials
- 3D Printing in Biomedical Research
- Tissue Engineering and Regenerative Medicine
- Proteins in Food Systems
- Pluripotent Stem Cells Research
- Silk-based biomaterials and applications
- Chemistry Education and Research
- Polymer Nanocomposites and Properties
- Polymer Surface Interaction Studies
- Graphene and Nanomaterials Applications
- Food composition and properties
- Orthopaedic implants and arthroplasty
- Antimicrobial agents and applications
- Agricultural and Food Sciences
- Enzyme Catalysis and Immobilization
- Polysaccharides Composition and Applications
- Hydrogels: synthesis, properties, applications
- Advanced Drug Delivery Systems
- Electrochemical sensors and biosensors
- Microbial Metabolites in Food Biotechnology
Universidade Federal do Rio Grande do Sul
2016-2025
University of Rio Grande and Rio Grande Community College
2014-2022
Universidade Luterana do Brasil
2019
Universidade Federal do Rio Grande
2014-2015
Universidade Federal de Santa Catarina
2005-2010
Three-dimensional (3D) printing is becoming an increasingly common technique to fabricate scaffolds and devices for tissue engineering applications. This due the potential of 3D provide patient-specific designs, high structural complexity, rapid on-demand fabrication at a low-cost. One major bottlenecks that limits widespread acceptance in biomanufacturing lack diversity “biomaterial inks”. Printability biomaterial determined by technique. Although wide range inks including polymers,...
Electrospraying was used to microencapsulate Lactobacillus plantarum in sodium alginate or alginate-citric pectin matrixes. Immobilized cells and control (free cells) were tested for survival when exposed simulated gastric acid intestinal juices (SGJ SIJ). Results showed viability losses of 6 4.2 log CFU mL−1 120 min SGJ SIJ, whereas microencapsulated decreased by 2.9 SGJ, 2.7 SIJ. Refrigeration storage 21 days cell survivals around 9 immobilized cells, the survival, it 1 mL−1. Microcapsules...
ABSTRACT Biodegradable poly(butylene adipate‐ co ‐terephthalate) (PBAT) films incorporated with different levels of the antimicrobial peptide nisin were developed by melt processing. Structural, morphological, thermal, mechanical, and properties determined. The X‐ray diffraction patterns exhibited decreasing intensity at 2θ values as concentration increased. Scanning electron microscopy showed a heterogeneous morphology when higher amounts incorporated. tested presented no significant...
Bioactive barrier membranes aim to actively contribute bone formation by promoting cell proliferation, differentiation, and mineral deposition into defects. Unlike traditional membranes, they can promote growth releasing ions, fostering an optimal environment for GBR. In this study, we aimed investigate the preclinical behavior of PBAT/BAGNb in a critical-sized defect model rat calvaria. A flexible resorbable polyester (poly(butylene adipate-co-terephthalate)) (PBAT) was combined with 30 wt...
Porous starch is produced by enzymatic hydrolysis of rice at sub‐gelatinization temperatures, applying reaction times 3, 6, and 12 h, respectively. The effects α‐amylase (AM), amyloglucosidase (AMG), their mixture (AM + AMG) on are studied morphology, hierarchical porosity, granular structure, thermal surface stability. time 6 h found to be the more appropriate for three treatments studied. techniques used characterize porous starches reveal porosity distribution present in all samples. It...
Amylose (AM) tends to form single helical inclusion complexes with suitable agents. These are considered promising biomaterial carrier since the guest molecules can be released later, leading many applications, especially in pharmaceutical industry. Rifampicin (RIF) has long been recognized as an active drug against Mycobacterium tuberculosis, however, administration of RIF high dosages originate unwanted side-effects. Due fact that use native amylose formation is limited by their low water...
Abstract Summary: In this paper, films were prepared from soy protein and corn starch in different proportions thermal stability kinetic parameters determined through degradation reactions an inert atmosphere. Solid residues decomposition products identified by infrared spectroscopy. Films less thermally stable than films. The containing both components had lower stabilities when compared to those of the pure biopolymers. mechanism seems occur a single step, which can be confirmed constant E...
The aim of this work has been to elaborate well defined gliadin nanofibers with incorporation inorganic molecules, such as polyhedral oligomeric silsesquioxane (POSS). Nanofibers were obtained by electrospinning processing, controlling the relevant parameters tip-to-collector distance, voltage and feed rate. fiber mats characterized SEM, confocal images, DSC, viscosity, FTIR conductivimetry analysis. spectra showed characteristic absorption bands related presence POSS-NH(2) within matrices....
ABSTRACT Barley represents an important source of total dietary fiber (TDF) and β‐glucans. The chemical composition partial characterization two Brazilian barley experimental lines, hull‐less malting, are reported. range in diameter the A‐ B‐type granules was similar both 15 to 28 µm 8 10 µm, respectively. Higher values for starch, damage ash, TDF insoluble (IDF) were observed malting line while β‐glucan content samples. had higher isolated as well residual protein lipids starch. starch from...
This study aimed to produce poly(butylene adipate-co-terephthalate) (PBAT)/niobium containing bioactive glasses (BAGNb) composites scaffolds produced by fused deposition modeling (FDM) printing and evaluate their physicochemical biological properties in vitro vivo. The composite filaments were melt-extrusion with the addition of 10 wt% BAGNb (PBAT/BAGNb). Filaments without as control group (PBAT). characterized used 3D-printed using FDM. scaffolds' structure surface assessed. In cell,...
Abstract The customization of polymeric prototypes is available to meet the specific needs individual patients, considering tissue location and patient‐specific characteristics. Poly (butylene adipate‐ co ‐terephthalate) (PBAT) has shown great promise among various polymers in this scenario due its biodegradability processability properties. However, effect geometry changes on mechanical properties PBAT 3D scaffolds their stability after vitro degradation are crucial determining final...
<i>Aims:</i> We aimed to assess the extent of variability in urinary iodine (UI) within a day, determine period day when UI was better associated with 24 h, and study relationship between sodium. <i>Methods:</i> This cross-sectional included 60 volunteers. Four urine samples were collected from each participant (A: breakfast lunch; B: lunch dinner; C: dinner bedtime, D: bedtime breakfast) compared 24-hour sample (calculated A–D ). UI, creatinine...