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Hydrogels in Tissue Engineering

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ISBN: 9783038971214 9783038971221 Year: Pages: XII, 146 Language: Englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Medicine (General)
Added to DOAB on : 2018-08-24 16:21:01
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Hydrogels are the foundation of regenerative medicine as a supportive matrix for cell immobilization and growth factor delivery. The fate of implanted cells is mediated by cell-matrix interaction at multiple scales and timed-release of growth factors to guide the differentiation and maturation of cells. Recently, there has been great interest in hydrogels with a hierarchical structure that mimics the complex interaction of cells with a microenvironment that can locally release growth factors to specific cells. Related topics in this Special Issue include hydrogels with a hierarchical structure; hybrid, degradable, and load-bearing hydrogels; hydrogels for cell encapsulation, micro-patterning, microfluidic devices, biofabrication, and high-throughput screening; and hydrogels that modulate the body’s immune response.

Implantable Microdevices

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ISBN: 9783039216604 9783039216611 Year: Pages: 132 DOI: 10.3390/books978-3-03921-661-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:16
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Implantable microdevices, providing accurate measurement of target analytes in animals and humans, have always been important in biological science, medical diagnostics, clinical therapy, and personal healthcare. Recently, there have been increasing unmet needs for developing high-performance implants that are small, minimally-invasive, biocompatible, long-term stable, and cost-effective. Therefore, the aim of this Special Issue is to bring together state-of-the-art research and development contributions that address key challenges and topics related to implantable microdevices. Applications of primary interest include, but are not limited to, miniaturized optical sensing and imaging tools, implantable sensors for detecting biochemical species and/or metabolites, transducers for measuring biophysical quantities (e.g., pressure and/or strain), and neural prosthetic devices.

Polymeric Systems as Antimicrobial or Antifouling Agents

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ISBN: 9783039284566 / 9783039284573 Year: Pages: 400 DOI: 10.3390/books978-3-03928-457-3 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Social Sciences --- Sociology
Added to DOAB on : 2020-06-09 16:38:57
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The rapid increase in the emergence of antibiotic-resistant bacterial strains, combined with a dwindling rate of discovery of novel antibiotic molecules, has created an alarming issue worldwide. Although the occurrence of resistance in microbes is a natural process, the overuse of antibiotics is known to increase the rate of resistance evolution. Under antibiotic treatment, susceptible bacteria inevitably die, while resistant microorganisms proliferate under reduced competition. Therefore, the out-of-control use of antibiotics eliminates drug-susceptible species that would naturally limit the expansion of resistant species. In addition, the ability of many microbial species to grow as a biofilm has further complicated the treatment of infections with conventional antibiotics. A number of corrective measures are currently being explored to reverse or slow antibiotic resistance evolution, Among which one of the most promising solutions is the development of polymer-based antimicrobial compounds. In this Special Issue, different polymer systems able to prevent or treat biofilm formation, including cationic polymers, antibacterial peptide-mimetic polymers, polymers or composites able to load and release bioactive molecules, and antifouling polymers able to repel microbes by physical or chemical mechanisms are reported. Their applications in the design and fabrication of medical devices, in food packaging, and as drug carriers is investigated.

Keywords

cationic polymers --- imidization --- quaternization --- antimicrobial properties --- hemolytic activity --- coatings from nanoparticles --- biocompatible polymer --- antimicrobial polymer --- dynamic light scattering --- coatings wettability --- microbicidal coatings --- bacteria viability --- bactericidal coatings --- Escherichia coli --- Staphylococcus aureus --- Acinetobacter baumannii --- multidrug-resistant --- antimicrobial peptide --- antibiofilm activity --- physiological salt --- biofilm --- anti-biofilm surface --- surface functionalization --- ?-chymotrypsin --- proteinase --- antimicrobial polymers --- quaternary ammonium --- 2-hydroxyethyl methacrylate --- thermal stability --- polymers --- antibacterial --- drug delivery --- periodontitis --- periodontal biofilms --- polyamide 11 --- antibacterial --- polymeric biocide --- thermal stability --- biofilm --- antifouling --- copper paint --- additives --- biofilm --- lipopeptides --- biofilm --- persister cells --- ocular infections --- biofilm on contact lenses --- cuprous oxide nanoparticles --- linear low-density polyethylene --- composites --- adhesives --- antibacterial activity --- water disinfection --- active packaging --- antimicrobial peptides --- food shelf-life --- foodborne pathogens --- plastic materials --- antibacterial peptides --- halictine --- circular dichroism --- fluorescence --- infrared spectroscopy --- segmented polyurethanes --- polyethylene glycol --- microbial biofilm --- antifouling materials --- medical device-related infections --- wound dressings --- additive manufacturing --- antibacterial polymers --- biocompatible systems --- drug delivery systems --- 3D printing --- amorphous materials --- ordered mesoporous silica --- sol-gel preparation --- drug carrier --- multifunctional hybrid systems --- olive mill wastewater --- antibacterial properties --- layered double hydroxides --- bionanocomposites --- acrylates --- antibacterial activity --- copolymerization --- polymeric films --- polymerizable quaternary ammonium salts --- quaternary ammonium salts --- UV-induced polymerization --- antimicrobial resistance --- antimicrobial polymers --- ESKAPE pathogens --- anti-biofilm surfaces --- polymeric surfaces --- biofilm methods --- biofilm analysis --- biofilm devices --- n/a

Polymeric Materials: Surfaces, Interfaces and Bioapplications

Authors: --- --- --- --- et al.
ISBN: 9783038979623 9783038979630 Year: Pages: 342 DOI: 10.3390/books978-3-03897-963-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-06-26 08:44:06
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This book collects the articles published in the Special Issue “Polymeric Materials: Surfaces, Interfaces and Bioapplications”. It shows the advances in polymeric materials, which have tremendous applications in agricultural films, food packaging, dental restoration, antimicrobial systems, and tissue engineering. These polymeric materials are presented as films, coatings, particles, fibers, hydrogels, or networks. The potential to modify and modulate their surfaces or their content by different techniques, such as click chemistry, ozonation, breath figures, wrinkle formation, or electrospray, are also explained, taking into account the relationship between the structure and properties in the final application. Moreover, new trends in the development of such materials are presented, using more environmental friendly and safe methods, which, at the same time, have a high impact on our society.

Keywords

corn stalk fiber --- friction composite --- friction and wear --- worn surface morphology --- antifouling coatings --- biofouling --- natural biofilms --- single-stranded conformation polymorphism --- polydimethylsiloxane --- multidimensional scale analysis --- antimicrobial coatings --- porous surfaces --- breath figures --- antimicrobial polymer --- coatings --- hydrogel --- protein-repellent polymer --- surface-attached polymer network --- polymer cross-linking --- alginate modification --- calcium chloride --- microparticles --- spray drying --- prolonged drug release --- gradient wrinkles --- UV/ozone --- irradiance --- polymeric composites --- bonding agents --- antibacterial --- oral biofilms --- periodontal pathogens --- caries inhibition --- recycling --- polypropylene --- biodegradable polymers --- degradation --- inmiscibility --- hemicelluloses --- chitosan --- composite films --- oxygen barrier property --- food packaging --- nanosecond laser surface modification --- ABS (Acrylonitrile-Butadiene-Styrene) --- surface wettability --- superhydrophobic --- superhydrophilic --- poly(x-chlorostyrene) --- honeycomb --- breath figures --- conformational entropy --- spinal anatomy --- intervertebral disc --- degenerative disc disease --- herniated disc --- spinal fusion --- total disc replacement --- tissue engineering --- Electrically conductive polymers --- Electroactive biomaterials --- Electrical stimulation --- Smart composites --- Bioelectric effect --- Drug delivery --- Artificial muscle --- bio-based --- fossil --- hybrids --- blends --- packaging --- bio-based polymers --- antimicrobial --- biodegradable --- sustainable --- eco-friendly --- graphene oxide --- chitosan --- composites --- scaffolds --- tissue engineering --- surface modification/functionalization --- surface segregation --- micro- and nanopatterned films --- blends and (nano)composites --- coatings --- surface wettability --- stimuli-responsive materials/smart surfaces --- bioapplications

Bio-Based Polymers for Engineered Green Materials

Authors: ---
ISBN: 9783039289257 / 9783039289264 Year: Pages: 568 DOI: 10.3390/books978-3-03928-926-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-06-09 16:38:57
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With daily signals, Nature is communicating us that its unconscious wicked exploitation is no more sustainable. Our socio-economic system focuses on production increasing without considering the consequences. We are intoxicating ourselves on a daily bases just to allow the system to perpetuate itself. The time to switch into more natural solutions is come and the scientific community is ready to offer more natural product with comparable performance then the market products we are used to deal with. This book collects a broad set of scientific examples in which research groups from all over the world, aim to replace fossil fuel-based solutions with biomass derived materials. In here, some of the most innovative developments in the field of bio-materials are reported considering topics which goes from biomass valorization to the synthesis of high preforming bio-based materials.

Keywords

thermoplastic starch --- corn starch --- chitosan --- crosslinked microparticles --- lignin-containing cellulose nanofibrils --- poly(lactic acid) and composite films --- lignin content --- compatibility --- adsorption --- phenanthrene --- pyrene --- benzoyl cellulose --- stearoyl cellulose --- silkworm cocoons --- dense structure --- porosity --- robust fiber network --- mechanical properties --- photodegradation --- liquid natural rubber --- UV light --- TiO2 anatase --- latex state --- wood modification --- alkali lignin --- water resistance --- dimensional stability --- heat treatment --- polymeric composites --- antifouling --- metal binding --- iron chelation --- polydopamine coating --- free-radical polymerization --- galactoglucomannan --- lignin --- lignin-carbohydrate complex --- ultrafiltration --- precipitation --- hydrogel --- recycling --- thermal degradation --- mechanical degradation --- polylactic acid --- Bioflex --- Solanyl --- PHBV --- poly(lactic acid) --- pulp fibers --- biocomposite --- emulsion-solvent evaporation method --- films --- mechanical properties --- PHA --- mixed microbial cultures --- bioplastics --- feast-famine --- cost --- Peptone --- Microbial nutrient --- Anti-bacterial silver nanoparticle --- Escherichia coli --- Staphylococcus aureus --- tannin --- hemicellulose --- waste biomass --- HSQC-NMR --- pyrolysis mechanism --- hydrotropic treatment --- metal chloride --- delignification --- enzymatic saccharification --- lignocellulosic nanofibrils --- microencapsulated phase change material (MPCM) --- polylactic acid (PLA) --- toughening --- endothermic effect --- kenaf fiber --- hybrid composites --- bio-based --- film --- mechanical properties --- polysaccharides --- resource recovery --- solution casting --- orange waste --- nanocelluloses --- cellulose nanofibers --- cellulose nanocrystals --- bacterial cellulose --- cement --- fiber-cement --- Hatscheck process --- bio-inspired interfaces --- mechanical properties --- thermal stability --- sensitivity --- electrospinning --- tissue engineering --- paper-based scaffolds --- osteoblast proliferation --- polycaprolactone --- biopolymers --- nanoclays --- nanobiocomposites --- extrusion-compounding --- polyhydroxyalkanoates --- thermal properties --- mechanical properties --- differential scanning calorimetry --- nuclear magnetic resonance --- X-ray diffraction --- transparent wood --- chemical composition --- H2O2 bleaching treatment --- physicochemical properties --- cellulose --- electrical resistance --- copper coating --- electroless deposition --- humidity sensor --- strain sensor --- lyocell fiber --- asphalt rubber --- bio-asphalt --- mixing sequence --- workability --- storage stability --- tung oil --- unsaturated polyester resins --- thermosetting polymers --- structure–property relationship --- structural plastics --- ONP fibers --- silanization --- composites --- mechanical properties --- Artemisia vulgaris --- microcellulose fiber --- nanocellulose fibers --- natural fibers --- Bio-based foams --- wastewater treatments --- cationic dyes --- anionic surfactants --- pollutant adsorbents --- tannin polymer --- tannin-furanic foam --- biopolymers --- nanoclays --- bio-nanocomposites --- extrusion-compounding --- polyhydroxyalkanoates --- thermal properties --- microstructure --- volatiles --- autoxidation --- thermal gravimetric analysis --- scanning electron microscope --- headspace solid phase microextraction --- alginate sponge --- two-step lyophilization --- methylene blue --- adsorption capacity --- biomass resources --- hybrid nonisocyanate polyurethane --- solvent- and catalyst-free --- dimer acid --- melt condensation --- bacterial cellulose --- surface modification --- TEMPO oxidation --- one-pot synthesis --- immobilized TEMPO --- physical property --- skincare --- cellulose --- graphene oxide --- ionic liquid --- membrane --- transport properties --- heavy metals --- porous structure --- SAXS --- WAXS --- cellulose --- wood --- lignocellulose --- ionic liquid --- imidazolium --- fractionation --- dissolution --- GC-MS --- kaempferol --- knotwood --- larixol --- taxifolin --- vibrational spectroscopy --- n/a

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