A5032699397- Graphene and Nanomaterials Applications
- biodegradable polymer synthesis and properties
- 3D Printing in Biomedical Research
- Bone Tissue Engineering Materials
- Liquid Crystal Research Advancements
- Photochromic and Fluorescence Chemistry
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- MXene and MAX Phase Materials
- Adhesion, Friction, and Surface Interactions
- Chemical Synthesis and Reactions
- Antimicrobial agents and applications
- Hydrogels: synthesis, properties, applications
- Silk-based biomaterials and applications
- Photochemistry and Electron Transfer Studies
- Fluid Dynamics and Heat Transfer
- Graphene research and applications
- Innovative Microfluidic and Catalytic Techniques Innovation
- Diatoms and Algae Research
- Polydiacetylene-based materials and applications
- Dielectric materials and actuators
- Additive Manufacturing and 3D Printing Technologies
- Electrospun Nanofibers in Biomedical Applications
- Nanoparticles: synthesis and applications
University of Chile
2019-2024
Millennium Engineering and Integration (United States)
2022
University of Concepción
2016-2017
Scaffolds based on bioconjugated hydrogels are attractive for tissue engineering because they can partly mimic human characteristics. For example, further increase their bioactivity with cells. However, most of the present problems related to processability, consequently limiting use in 3D printing produce tailor-made scaffolds. The goal this work is develop hydrogel nanocomposite inks printed scaffold fabrication through a micro-extrusion process having improved both biocompatibility and...
Novel antimicrobial 3D-printed alginate/bacterial-cellulose hydrogels with in situ-synthesized copper nanostructures were developed having improved printability. Prior to 3D printing, two methods tested for the development of alginate hydrogels: (a) ionic cross-linking calcium ions followed by ion exchange (method A) and (b) B). A solution containing sodium borohydride, used as a reducing agent, was subsequently added hydrogels, producing situ clusters nanoparticles embedded hydrogel matrix....
The rice leaf, combining the surface properties of lotus leaves and shark skin, presents outstanding superhydrophobic motivating its biomimesis. We created a novel biomimetic rice-leaf by three-level hierarchical structure, using for first time stereolithographic (SLA) 3D printed channels (100µm width) with an intrinsic roughness from printing filaments (10µm), coated TiO2 nanoparticles (22 100nm). This structure maximum advancing contact angle 165° characterized lower both anisotropy...
3D-printed hydrogel scaffolds biomimicking the extracellular matrix (ECM) are key in cartilage tissue engineering as they can enhance chondrogenic differentiation of mesenchymal stem cells (MSCs) through presence active nanoparticles such graphene oxide (GO). Here, biomimetic hydrogels were developed by cross-linking alginate, gelatin, and chondroitin sulfate biopolymers GO a bioactive filler, with excellent processability for developing 3D printed bioprinting process. A novel bioink based...
Novel columnar liquid crystals whose molecular structures consist of a C3 star-shaped 1,3,5-triazine unit as central core, and three pendant 2-phenyl-5-(di-, and/or tri-n-alkoxyphenyl)-1,3,4-thiadiazole arms, containing ether connecting groups, variable number positions linear alkoxy chains were synthesised their mesomorphic properties studied by differential scanning calorimetry, polarised optical microscopy X-ray diffraction. The found to be dependent on the length, position peripheral...
New molecular structures consisting of a C3 star-shaped 1,3,5-benzene unit as central core, and three pendant 2-phenyl-5-(di-, and/or tri-n-alkoxyphenyl)-1,3,4-thiadiazole arms, containing ester connecting groups, variable number positions linear alkoxy chains (2an, 2b10 2c10) were synthesised. The mesomorphic properties studied by differential scanning calorimetry, polarised optical microscopy X-ray diffraction. Compounds bearing nine peripheral n-decyloxy (2a10) n-dodecyloxy (2a12) form an...
Abstract Polypseudorotaxane (PPR) hydrogels formed by inclusion complexes between poly(ethylene glycol) (PEG) and α‐cyclodextrin (α‐CD) are highlighted as promising biomaterial for drug delivery. Here, we report a novel injectable PPR hydrogel containing graphene oxide (GO) pH‐responsive controlled release of doxorubicin hydrochloride (DOX). Our results showed that the gelation rates PEG/α‐CD supramolecular structures could be tailored depending on reagent concentrations. The formation was...
Microorganisms attach on all kinds of surfaces, spreading pathogens that affect human health and alter the properties products surface itself. These issues motivated design a broad set antimicrobial polymers have great versatility to be chemically modified, processed, mixed with other compounds. This review presents an overview these different strategies, including antimicrobial-release systems inherently polymers, alongside novel approaches such as smart materials topographical effects. can...
Abstract Molybdenum disulfide (MoS 2 ) nanoparticles, obtained from liquid phase exfoliation in the presence of chitosan, were melt mixed with a linear low‐density polyethylene (LLDPE) matrix to produce novel antimicrobial active packaging materials. The LLDPE/MoS composites presented exfoliated nanoparticles forming aggregates that are well dispersed polymer matrix. These 2D‐layered MoS at concentrations 0.5, 1.0, and 3.0 wt% rendered several functionalities LLDPE, as for example an...
Transesterification polymerizations between a silicon fatty ester derived from methyl 10-undecenoate and polyethylene glycol (PEG) monomers generate amphiphilic biopolyesters showing abilities to form micelle fiber structures.