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Pseudomonas aeruginosa. --- Alginate. --- Maladie fibro-kystique. --- Fibrocystose.
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Depuis plusieurs années, l’usage des produits phytopharmaceutiques est de plus en plus restreint à cause de leur toxicité pour l’environnement et la santé humaine. Les recherches, notamment dans le domaine de la lutte biologique, sont donc en augmentation afin de trouver des alternatives contre les phytopathogènes. C’est dans cet objectif que de nombreux travaux ont étudié l’activité antimicrobienne in vitro de certains composés organiques volatils (COVs) naturels comme le méthylacrylate (MA). Cette substance est émise lors de l’interaction entre les racines d’orge et Cochliobolus sativus (un champignon pathogène). Dans ce travail, l’activité antifongique du MA est évaluée in vivo sur 2 modèles d’étude : caryopse de blé/Fusarium culmorum (champignon pathogène de céréales) et pomme/Penicillium expansum (champignon responsable de la pourriture bleue en post-récolte). L’application de ce COV in vivo demandant une formulation limitant sa volatilité, nous avons testé 2 formulations différentes : l’adsorption sur l’argile et l’encapsulation dans des billes d’alginate permettant un relargage progressif de la molécule dans le temps. Les résultats de ce travail ont montré que le MA a inhibé de manière significative le développement des 2 champignons in vivo. Toutefois, une phytotoxicité du MA sur les caryopses de blé et les pommes est apparue dans nos essais. Les deux formulations ont montré des faibles rendements d’adsorption et d’encapsulation. Cependant, la méthode d’encapsulation du COV par des billes d’alginate semble être la plus prometteuse si l’homogénéisation de la solution d'alginate peut être optimisée. Le MA ouvre donc des perspectives intéressantes dans la recherche d’alternatives aux fongicides conventionnels.
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This book focuses on recent trends of research on alginate-based biomaterials in Drug Delivery strategies and biomedical engineering. It contains the widely used alginate-based biomaterials as micro to nano-controlled drug delivery (oral, ocular delivery, topical delivery, etc.) and its fabrication technology, characterization, and biomedical aspects (such as cancer therapy, tissue engineering, gene delivery, vaccine delivery, enzyme immobilization, wound healing, dental applications, etc.) in a single book. The chapters cover updated information, current research trends, informatics, and all aspects of applications. Alginate is a U.S. Food and Drug Administration (FDA)-approved natural biomaterial and has diverse biomedical applications. In recent years, researchers and scientists are working on the alginate-based drug delivery systems that have been designed and characterized as a matrix, micro to nanocarriers, fibers, composite/scaffolds, etc. Alginate has versatile properties such as biodegradable, biocompatible, nontoxic, and easily available. This book especially highlights both the drug delivery strategies and biomedical engineering aspects such as controlled drug delivery, drug targeting to the site of action, cancer therapy, gene and vaccine delivery, enzyme immobilization, tissue engineering, and regenerative medicine. .
Drug delivery systems. --- Biomaterials. --- Therapeutics. --- Biology—Technique. --- Genetic engineering. --- Cancer—Treatment. --- Biomedical engineering. --- Alginates. --- Drug Delivery Systems --- Nanoparticle Drug Delivery System. --- Biomedical Engineering. --- Neoplasm --- Gene Transfer Techniques. --- Tissue Scaffolds. --- Drug Delivery. --- Gene Delivery. --- Cancer Therapy. --- Biomedical Engineering and Bioengineering. --- Delivery systems, Drug --- Drug administration technology --- Drug delivery technology --- Drugs --- Pharmaceutical technology --- Designed genetic change --- Engineering, Genetic --- Gene splicing --- Genetic intervention --- Genetic surgery --- Genetic recombination --- Biotechnology --- Transgenic organisms --- Medical treatment --- Therapy --- Treatment of diseases --- Treatments for diseases --- Clinical medicine --- Clinical engineering --- Medical engineering --- Bioengineering --- Biophysics --- Engineering --- Medicine --- Tissue Scaffolding --- Scaffold, Tissue --- Scaffolding, Tissue --- Scaffoldings, Tissue --- Scaffolds, Tissue --- Tissue Scaffold --- Tissue Scaffoldings --- Gene Delivery Systems --- Gene Transfer Technique --- Transgenesis --- Delivery System, Gene --- Delivery Systems, Gene --- Gene Delivery System --- Technique, Gene Transfer --- Techniques, Gene Transfer --- Transfer Technique, Gene --- Transfer Techniques, Gene --- Genetic Therapy --- Transgenes --- Benign Neoplasms --- Malignancy --- Malignant Neoplasms --- Neoplasia --- Neoplasms, Benign --- Cancer --- Tumors --- Benign Neoplasm --- Cancers --- Malignancies --- Malignant Neoplasm --- Neoplasias --- Neoplasm, Benign --- Neoplasm, Malignant --- Neoplasms, Malignant --- Tumor --- Medical Oncology --- Engineering, Biomedical --- Clinical Engineering --- Engineering, Clinical --- Biomedical Technology --- NDDSs --- Nano Delivery System --- Nano Drug Delivery Systems --- Nano-Drug Delivery System --- Nanoparticle Based Drug Delivery System --- Delivery System, Nano --- Delivery System, Nano-Drug --- Delivery Systems, Nano --- Delivery Systems, Nano-Drug --- Nano Delivery Systems --- Nano Drug Delivery System --- System, Nano Delivery --- System, Nano-Drug Delivery --- Systems, Nano Delivery --- Systems, Nano-Drug Delivery --- Drug Targeting --- Delivery System, Drug --- Delivery Systems, Drug --- Drug Delivery System --- Drug Targetings --- System, Drug Delivery --- Systems, Drug Delivery --- Targeting, Drug --- Targetings, Drug --- Dosage Forms --- Alginate --- Alginic Acid, Barium Salt --- Alginic Acid, Calcium Salt --- Alginic Acid, Copper Salt --- Alginic Acid, Potassium Salt --- Alginic Acid, Sodium Salt --- Alloid G --- Barium Alginate --- Calcium Alginate --- Calginat --- Copper Alginate --- Kalrostat --- Kalrostat 2 --- Kaltostat --- Potassium Alginate --- Sodium Alginate --- Sodium Calcium Alginate --- Vocoloid --- Xantalgin --- poly(Mannuronic Acid), Sodium Salt --- Alginate, Barium --- Alginate, Calcium --- Alginate, Copper --- Alginate, Potassium --- Alginate, Sodium --- Alginate, Sodium Calcium --- Calcium Alginate, Sodium --- therapy. --- Delivery systems --- Drug Delivery Systems. --- Neoplasms
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Microbial polysaccharides represent an attractive alternative to those from plants or macro algae. They can be produced from renewable sources including lignocellulosic waste streams. Their production does not depend on geographical constraints and/or seasonal limitations. Additionally the manipulation of biosynthetic pathways to enhance productivity or to influence the chemi-cal polysaccharide composition is comparatively easy in bacteria. Microbial exopolysaccharides represents a valuable resource of biogenic and biodegradable polymers, suitable to replace petro based polymers in various technical applications. Furthermore, biocompatible exopolysaccha-rides are very attractive in medical applications, such as drug delivery systems, use as vaccines or nanoparticles. This research topic will depict the status quo, as well as the future needs in the field of EPS and biofilm research. Starting from the unexplored diversity of microbial polysaccharide producers to production processes and possibilities for modifications, to enhance the already high number of functionalities based on the chemical structures. An overview of the recent and future applications will be given, and the necessity in unravelling the biosynthesis of microbial exopolysaccharide producers is depicted, highlighting the future trend of tailor made polymers. Constraints in structure analysis of these highly complex biogenic polymers are described and different approaches to solve the restrictions in imaging and NMR analysis will be given. Therefore; this research topic comprises the whole process from genes to applications.
alginate --- screening for microbial exopolysaccharide producers --- polysaccharide applications --- structural analysis of polysaccharides --- polysaccharide modifying enzymes --- biofilm --- rare sugars --- exopolysaccharide biosynthesis --- Microbial polysaccharides --- tailor made exopolysaccharides
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Microbial polysaccharides represent an attractive alternative to those from plants or macro algae. They can be produced from renewable sources including lignocellulosic waste streams. Their production does not depend on geographical constraints and/or seasonal limitations. Additionally the manipulation of biosynthetic pathways to enhance productivity or to influence the chemi-cal polysaccharide composition is comparatively easy in bacteria. Microbial exopolysaccharides represents a valuable resource of biogenic and biodegradable polymers, suitable to replace petro based polymers in various technical applications. Furthermore, biocompatible exopolysaccha-rides are very attractive in medical applications, such as drug delivery systems, use as vaccines or nanoparticles. This research topic will depict the status quo, as well as the future needs in the field of EPS and biofilm research. Starting from the unexplored diversity of microbial polysaccharide producers to production processes and possibilities for modifications, to enhance the already high number of functionalities based on the chemical structures. An overview of the recent and future applications will be given, and the necessity in unravelling the biosynthesis of microbial exopolysaccharide producers is depicted, highlighting the future trend of tailor made polymers. Constraints in structure analysis of these highly complex biogenic polymers are described and different approaches to solve the restrictions in imaging and NMR analysis will be given. Therefore; this research topic comprises the whole process from genes to applications.
alginate --- screening for microbial exopolysaccharide producers --- polysaccharide applications --- structural analysis of polysaccharides --- polysaccharide modifying enzymes --- biofilm --- rare sugars --- exopolysaccharide biosynthesis --- Microbial polysaccharides --- tailor made exopolysaccharides
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Microbial polysaccharides represent an attractive alternative to those from plants or macro algae. They can be produced from renewable sources including lignocellulosic waste streams. Their production does not depend on geographical constraints and/or seasonal limitations. Additionally the manipulation of biosynthetic pathways to enhance productivity or to influence the chemi-cal polysaccharide composition is comparatively easy in bacteria. Microbial exopolysaccharides represents a valuable resource of biogenic and biodegradable polymers, suitable to replace petro based polymers in various technical applications. Furthermore, biocompatible exopolysaccha-rides are very attractive in medical applications, such as drug delivery systems, use as vaccines or nanoparticles. This research topic will depict the status quo, as well as the future needs in the field of EPS and biofilm research. Starting from the unexplored diversity of microbial polysaccharide producers to production processes and possibilities for modifications, to enhance the already high number of functionalities based on the chemical structures. An overview of the recent and future applications will be given, and the necessity in unravelling the biosynthesis of microbial exopolysaccharide producers is depicted, highlighting the future trend of tailor made polymers. Constraints in structure analysis of these highly complex biogenic polymers are described and different approaches to solve the restrictions in imaging and NMR analysis will be given. Therefore; this research topic comprises the whole process from genes to applications.
alginate --- screening for microbial exopolysaccharide producers --- polysaccharide applications --- structural analysis of polysaccharides --- polysaccharide modifying enzymes --- biofilm --- rare sugars --- exopolysaccharide biosynthesis --- Microbial polysaccharides --- tailor made exopolysaccharides
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This book presents contributions from scientists who are directly involved in the potential of marine enzymes as useful tools in biocatalysis; the results of enzymatic bioprospecting in gross marine environments are acknowledged, including two review articles on general enzymatic processes and microalgal enzymes. In addition, studies on structural characterizations, biological functions and aspects related to the complexity of marine enzyme-based bioprocesses are discussed. Prominent conclusions by many scientists in the field of marine biotechnology emphasize that, due to marine biological diversity and the specificity of biological marine metabolisms, the study of biocatalysts on a global scale from this environment is just starting, and possesses huge potential for the development of applications with industrial benefits.
Research & information: general --- Biology, life sciences --- metalloprotease --- adsorption analysis --- molecular docking --- affinity purification --- aminophenylboronic acid --- alginate degradation --- 4-deoxy-l-erythro-5-hexoseulose uronic acid (DEH) metabolism --- Bacteroidetes --- Proteobacteria --- Flavobacterium --- 2-keto-3-deoxy-d-gluconate (KDG) kinase --- 2-keto-3-deoxy-6-phosphogluconate (KDPG) aldolase --- alginate-derived products --- marine enzymes --- biocatalysts --- bioprocesses --- biorefinery --- seafood --- marine biomarkers --- collagenase --- fermentation optimization --- collagen --- Pseudoalteromonas --- antioxidant peptides --- microcystin-degrading bacteria --- mycotoxin --- protease --- esterase --- inhibitor --- marine agent --- Catenovulum --- alkaline and cold-adapted dextranase --- isomaltoogligosaccharides --- biofilm --- dental caries --- growing cells --- resting cells --- asymmetric reduction --- marine fungi --- chiral alcohols --- alginate lyase --- marine bacterium --- Bacillus sp. Alg07 --- purification --- alginate oligosaccharides --- Vibrio weizhoudaoensis --- PL7 family --- salt-activated enzyme --- Serratia marcescens --- polyM-specific --- oligosaccharides --- Isoptericola halotolerans --- bifunctional alginate lyase --- α-d-galactosidase --- homology model --- GH 36 family --- mutation --- transglycosylation --- marine bacteria --- Pseudoalteromonas sp. KMM 701 --- leucine dehydrogenase --- cold-adapted --- Antarctic bacterium --- sea-ice --- homology modeling --- fucoidan --- endo-fucoidanase --- galactofucan --- molecular stabilisation --- Sargassum mcclurei --- Turbinaria ornata --- Alteromonas --- deep sea --- cold-adapted enzyme --- β-galactosidase --- lactose-free milk --- chitosanases --- chitin deacetylase --- deacetylation patterns --- chitooligosaccharides --- separating --- detecting --- expression --- deep-sea enzyme --- pCold vector --- Ascophyllum nodosum --- algal cell wall degrading enzymes --- enzyme-assisted extraction --- ichip device --- quorum quenching enzyme --- error prone PCR --- high-throughput screening --- site-directed mutagenesis --- catalytic ability --- Pectobacterium carotovorum subsp. carotovorum (Pcc) --- Alginate lyase --- Thermo-tolerant --- pH-stability --- Endo-manner --- Vibrio sp. SY01 --- polysaccharide lyase of family 6 --- characterization --- degradation pattern --- microalgae --- enzymes --- marine biotechnology --- -omics technologies --- heterologous expression --- homologous expression
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This book presents contributions from scientists who are directly involved in the potential of marine enzymes as useful tools in biocatalysis; the results of enzymatic bioprospecting in gross marine environments are acknowledged, including two review articles on general enzymatic processes and microalgal enzymes. In addition, studies on structural characterizations, biological functions and aspects related to the complexity of marine enzyme-based bioprocesses are discussed. Prominent conclusions by many scientists in the field of marine biotechnology emphasize that, due to marine biological diversity and the specificity of biological marine metabolisms, the study of biocatalysts on a global scale from this environment is just starting, and possesses huge potential for the development of applications with industrial benefits.
metalloprotease --- adsorption analysis --- molecular docking --- affinity purification --- aminophenylboronic acid --- alginate degradation --- 4-deoxy-l-erythro-5-hexoseulose uronic acid (DEH) metabolism --- Bacteroidetes --- Proteobacteria --- Flavobacterium --- 2-keto-3-deoxy-d-gluconate (KDG) kinase --- 2-keto-3-deoxy-6-phosphogluconate (KDPG) aldolase --- alginate-derived products --- marine enzymes --- biocatalysts --- bioprocesses --- biorefinery --- seafood --- marine biomarkers --- collagenase --- fermentation optimization --- collagen --- Pseudoalteromonas --- antioxidant peptides --- microcystin-degrading bacteria --- mycotoxin --- protease --- esterase --- inhibitor --- marine agent --- Catenovulum --- alkaline and cold-adapted dextranase --- isomaltoogligosaccharides --- biofilm --- dental caries --- growing cells --- resting cells --- asymmetric reduction --- marine fungi --- chiral alcohols --- alginate lyase --- marine bacterium --- Bacillus sp. Alg07 --- purification --- alginate oligosaccharides --- Vibrio weizhoudaoensis --- PL7 family --- salt-activated enzyme --- Serratia marcescens --- polyM-specific --- oligosaccharides --- Isoptericola halotolerans --- bifunctional alginate lyase --- α-d-galactosidase --- homology model --- GH 36 family --- mutation --- transglycosylation --- marine bacteria --- Pseudoalteromonas sp. KMM 701 --- leucine dehydrogenase --- cold-adapted --- Antarctic bacterium --- sea-ice --- homology modeling --- fucoidan --- endo-fucoidanase --- galactofucan --- molecular stabilisation --- Sargassum mcclurei --- Turbinaria ornata --- Alteromonas --- deep sea --- cold-adapted enzyme --- β-galactosidase --- lactose-free milk --- chitosanases --- chitin deacetylase --- deacetylation patterns --- chitooligosaccharides --- separating --- detecting --- expression --- deep-sea enzyme --- pCold vector --- Ascophyllum nodosum --- algal cell wall degrading enzymes --- enzyme-assisted extraction --- ichip device --- quorum quenching enzyme --- error prone PCR --- high-throughput screening --- site-directed mutagenesis --- catalytic ability --- Pectobacterium carotovorum subsp. carotovorum (Pcc) --- Alginate lyase --- Thermo-tolerant --- pH-stability --- Endo-manner --- Vibrio sp. SY01 --- polysaccharide lyase of family 6 --- characterization --- degradation pattern --- microalgae --- enzymes --- marine biotechnology --- -omics technologies --- heterologous expression --- homologous expression
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This book presents contributions from scientists who are directly involved in the potential of marine enzymes as useful tools in biocatalysis; the results of enzymatic bioprospecting in gross marine environments are acknowledged, including two review articles on general enzymatic processes and microalgal enzymes. In addition, studies on structural characterizations, biological functions and aspects related to the complexity of marine enzyme-based bioprocesses are discussed. Prominent conclusions by many scientists in the field of marine biotechnology emphasize that, due to marine biological diversity and the specificity of biological marine metabolisms, the study of biocatalysts on a global scale from this environment is just starting, and possesses huge potential for the development of applications with industrial benefits.
Research & information: general --- Biology, life sciences --- metalloprotease --- adsorption analysis --- molecular docking --- affinity purification --- aminophenylboronic acid --- alginate degradation --- 4-deoxy-l-erythro-5-hexoseulose uronic acid (DEH) metabolism --- Bacteroidetes --- Proteobacteria --- Flavobacterium --- 2-keto-3-deoxy-d-gluconate (KDG) kinase --- 2-keto-3-deoxy-6-phosphogluconate (KDPG) aldolase --- alginate-derived products --- marine enzymes --- biocatalysts --- bioprocesses --- biorefinery --- seafood --- marine biomarkers --- collagenase --- fermentation optimization --- collagen --- Pseudoalteromonas --- antioxidant peptides --- microcystin-degrading bacteria --- mycotoxin --- protease --- esterase --- inhibitor --- marine agent --- Catenovulum --- alkaline and cold-adapted dextranase --- isomaltoogligosaccharides --- biofilm --- dental caries --- growing cells --- resting cells --- asymmetric reduction --- marine fungi --- chiral alcohols --- alginate lyase --- marine bacterium --- Bacillus sp. Alg07 --- purification --- alginate oligosaccharides --- Vibrio weizhoudaoensis --- PL7 family --- salt-activated enzyme --- Serratia marcescens --- polyM-specific --- oligosaccharides --- Isoptericola halotolerans --- bifunctional alginate lyase --- α-d-galactosidase --- homology model --- GH 36 family --- mutation --- transglycosylation --- marine bacteria --- Pseudoalteromonas sp. KMM 701 --- leucine dehydrogenase --- cold-adapted --- Antarctic bacterium --- sea-ice --- homology modeling --- fucoidan --- endo-fucoidanase --- galactofucan --- molecular stabilisation --- Sargassum mcclurei --- Turbinaria ornata --- Alteromonas --- deep sea --- cold-adapted enzyme --- β-galactosidase --- lactose-free milk --- chitosanases --- chitin deacetylase --- deacetylation patterns --- chitooligosaccharides --- separating --- detecting --- expression --- deep-sea enzyme --- pCold vector --- Ascophyllum nodosum --- algal cell wall degrading enzymes --- enzyme-assisted extraction --- ichip device --- quorum quenching enzyme --- error prone PCR --- high-throughput screening --- site-directed mutagenesis --- catalytic ability --- Pectobacterium carotovorum subsp. carotovorum (Pcc) --- Alginate lyase --- Thermo-tolerant --- pH-stability --- Endo-manner --- Vibrio sp. SY01 --- polysaccharide lyase of family 6 --- characterization --- degradation pattern --- microalgae --- enzymes --- marine biotechnology --- -omics technologies --- heterologous expression --- homologous expression
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This book is a collection of papers published in the Special Issue of Pharmaceutics, entitled "Pharmaceutical Particulates and Membranes for Delivery of Drugs and Bioactive Molecules". A drug release profile is a consequential factor for nanoparticle application, directly related to drug stability and therapeutic results, as well as formulation development. Pharmaceutical particulates of different sizes and shapes (e.g., liposomes, oil-in-water emulsions, polymeric nano- and microspheres, metallic nanoparticles (NPs) such as gold, silver and iron oxide crystals, and core-shell hybrid NPs) offer many diagnostic and therapeutic applications. Membranes are also extensively utilized in many applications. They are especially beneficial to the distribution of macromolecular drugs and biopharmaceutical drugs (peptides, proteins, antibodies, oligonucleotides, plasmids, and viruses) with physicochemical and pharmacokinetic vulnerability. The delivery of drugs and bioactive molecules using particulates and membranes has gained a great deal of attention for various applications, such as the treatment of secondary infections, cancer treatment, skin regeneration, orthopaedic applications, and antimicrobial drug delivery. In addition, several production techniques have been utilized for the fabrication of particulates and membranes in the last decade, which include lyophilisation, micro-emulsion, nano-spray dryer, nano-electrospinning, slip casting and 3D printers. Therefore, pharmaceutical particulates and membranes possess excellent prospects to deliver drugs and bioactive molecules with the potential to improve new delivery strategies like sustained and controlled release.
alginate gelispheres --- textural analysis --- crosslinked matrices --- PLGA discs --- prolonged release --- powder flow properties --- microfluidics --- coculture --- HER2 --- polystyrene µPs --- biofunctionalization --- coaxial electrospraying --- polymeric nanoparticles --- spreading angle --- process-property-performance relationship --- nanoemulsion --- mixture design --- aqueous humor --- antimicrobial activity --- sustained release pellets --- double coating layer --- loxoprofen --- citric acid --- pharmacokinetic studies --- biomimetic magnetite --- drug delivery --- magnetic hyperthermia --- magnetite --- MamC --- nanoparticles stability --- pharmaceutical particulates --- membranes --- drug delivery systems --- bio-imaging --- bioactive molecules --- composite --- N-hydroxyphthalimide --- carbon dots --- polymer gels --- antitumoral activity --- wound dressing --- polymeric membrane --- nanoparticles --- curcumin --- alginate --- pluronic F68 --- drug skin permeation --- Franz cells --- tape stripping --- wound infection --- biofilm --- pseudomonas aeruginosa --- antimicrobial delivery --- polyvinylpyrrolidone --- nanofibers --- red blood cells membrane --- arsenic trioxide --- sodium alginate nanoparticles --- reduce toxicity --- anti-tumor --- pediatric drug delivery --- tuberculosis --- reconstitutable dry suspension --- isoniazid --- polymer-lipid --- microparticulate --- direct emulsification --- n/a
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