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Antibacterial Activity of Nanomaterials

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ISBN: 9783038970491 9783038970507 Year: Pages: 328 DOI: 10.3390/books978-3-03897-050-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General)
Added to DOAB on : 2018-09-14 10:27:20
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Bacterial proliferation is a severe and increasing concern in everyday life, which accounts for important damage in a number of industries, from textile and marine transport to medicine and food packaging. Despite the huge efforts by academic and industry researchers, a universal solution for controlling bacterial colonization has not been established yet. In this regard, nanomaterials are more and more used to target bacteria as an alternative to antibiotics. Examples include the use of nanomaterials in antibacterial coatings for implantable devices and other materials to prevent infection and promote wound healing and in antibiotic delivery systems to treat diseases. By exploiting the excellent antibacterial properties of some materials at the nanoscale, namely ZnO, TiO2, Ag, Au, nanodiamond and graphene, effective strategies for the prevention of infections can be developed.The main focus of this book is, therefore, to present selected examples of the most recent advances in the synthesis, characterization, and applications of nanomaterials with antibacterial activity. The book is addressed to scientists and industry researchers, as well as to master and degree students in chemistry, pharmacy, bioengineering, biology and materials science. The Editor would like to thank the staff of Nanomaterials Editorial Office for the constant help and support.

Tissue Engineering and Regenerative Nanomedicine

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ISBN: 9783039216567 9783039216574 Year: Pages: 126 DOI: 10.3390/books978-3-03921-657-4 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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[This book focus on the most recent advances related to the design and processing methods of different nanobiomaterials, films, and fibers; surface functionalization strategies, including biological performance assessment and cytocompatibility; and their applications in tissue engineering strategies.]

Food Packaging. Materials and Technologies

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ISBN: 9783038977667 9783038977674 Year: Pages: 216 DOI: 10.3390/books978-3-03897-767-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Materials
Added to DOAB on : 2019-04-25 16:37:17
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Because of the increasing pressure on both food safety and packaging/food waste, the topic is important both for academics, applied research, industry and also for environment protection. Different materials, such as glass, metals, paper and paperboards, and non-degradable and degradable polymers, with versatile properties, are attractive for potential uses in food packaging. Food packaging is the largest area of application within the food sector. Only the nanotechnology-enabled products in the food sector account for ~50% of the market value, with and the annual growth rate is 11.65%. Technological developments are also of great interest. In the food sector, nanotechnology is involved in packaging materials with extremely high gas barriers, antimicrobial properties, and also in nanoencapsulants for the delivery of nutrients, flavors, or aromas, antimicrobial, and antioxidant compounds. Applications of materials, including nanomaterials in packaging and food safety, are in forms of: edible films, polymer nanocomposites, as high barrier packaging materials, nanocoatings, surface biocides, silver nanoparticles as potent antimicrobial agents, nutrition and neutraceuticals, active/bioactive packaging, intelligent packaging, nanosensors and nanomaterial-based assays for the detection of food relevant analytes (gasses, small organic molecules and food-borne pathogens) and bioplastics.

Bioactive Compounds from Marine-Derived Aspergillus, Penicillium, Talaromyces and Trichoderma Species

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ISBN: 9783038979807 9783038979814 Year: Pages: 134 DOI: 10.3390/books978-3-03897-981-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Microbiology
Added to DOAB on : 2019-06-26 08:44:06
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The importance of bioactive natural compounds in pharmacology and other biotechnological fields has stimulated the scientific community to explore new environmental contexts and their associated microbial diversity. As the largest frontier in biological discovery, the sea represents a significant source of organisms producing novel secondary metabolites with interesting bioactivities. Of the available biological material, fungi have received increasing consideration, both due to their pervasive occurrence in varying habitats as well as their aptitude to develop symbiotic associations with higher organisms in numerous contexts. In many cases, fungal strains have been reported as the real producers of drugs originally extracted from marine plants and animals. Due to the constantly increasing number of marine-derived fungi yielding valuable bioactive products, it is now appropriate to present these findings to a recipient audience in a more organized form. This Special Issue of Marine Drugs, entitled “Bioactive Compounds from Marine-Derived Aspergillus, Penicillium, Talaromyces, and Trichoderma Species"" is specifically focused on a few genera of ascomycetous fungi which are widespread regarding marine contexts and are particularly inclined to establishing symbiotic relationships. For this project, we welcome submissions of full research papers, short notes, and review articles reporting the discovery and characterization of products showing antibiotic, antitumor, antiviral, insecticidal, antimalarial, antifouling, antioxidant, plant growth-promoting and/or resistance-inducing, as well as other less-exploited activities.

Genome Mining and Marine Microbial Natural Products

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ISBN: 9783039280902 9783039280919 Year: Pages: 202 DOI: 10.3390/books978-3-03928-091-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Microbiology --- Biology --- Science (General)
Added to DOAB on : 2020-01-30 16:39:46
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Two review papers, eight research articles, and one brief report were published in this Special Issue. They showed the rich resources that are present within the genomes of marine microorganisms and discussed the use of recently developed tools and technologies to exploit this genetic richness. Examples include the rational supply of precursors according to the relevant biosynthetic pathway and stress driven discovery together with the use of histone deacetylase inhibitors to facilitate the discovery of new bioactive molecules with potential biopharmaceutical applications. We believe that the content of this Special Issue reflects the current state-of-the-art research in this area and highlights the interesting strategies that are being employed to uncover increasing numbers of exciting novel compounds for drug discovery from marine genetic resources.

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

Marine Chitin 2019

Authors: ---
ISBN: 9783039360727 / 9783039360734 Year: Pages: 288 DOI: 10.3390/books978-3-03936-073-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Therapeutics
Added to DOAB on : 2020-06-09 16:38:57
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In 2019, we sent out a call for submissions to a Special Issue of Marine Drugs entitled “Marine Chitin 2019”, and we are pleased that this issue has now been published. Over 16 high-impact papers were included in this issue, which we now plan to publish as a book. In addition, we now seek to publish a further Special Issue of Marine Drugs, “Marine Chitin 2020–2021”. As before, we plan to produce an authoritative and exciting issue that will encompass breakthroughs in scientific and industrial chitin and chitosan research. Significant advances in chitin and chitosan research have been made since the 1970s, and current overviews in recent publications involving chitin and chitosan research advances are in need of an update.

Keywords

chitosan --- cytotoxicity --- polymer film --- sodium carbonate --- soluble chitosan complex --- chitin --- chitosan --- protease --- chitinase --- chitosan oligomers --- chitooligosaccharides --- anti-inflammatory action --- RAW264.7 macrophage --- chitosan oleate salt --- amphiphilic polymer --- PLGA --- nanoparticles --- mucoadhesion --- Caco-2 cell culture --- nile red --- curcumin --- chitooligosaccharide --- immunostimulatory activity --- RAW 264.7 cells --- mitogen-activated protein kinases (MAPK) --- phosphoinositide 3-kinases (PI3K)/Akt --- chitosan oligosaccharides --- streptomycin --- Pseudomonas aeruginosa --- biofilms --- conjugation --- chitin --- marine sponges --- scaffolds --- Aplysina archeri --- express method --- bromotyrosines --- crude oil --- blood --- methylene blue --- chitin --- chitosan --- Paenibacillus --- chitosanase --- chitosan oligomers --- ?-glucosidase inhibitor --- antioxidant --- Polybius henslowii --- marine resources --- chitosan --- chitooligosaccharides --- antifungal activity --- antioxidant activity --- chitin --- collagen --- electrospinning --- mechanical property --- 2D correlation spectroscopy --- polymorph --- chitosan lactate --- chitosan tartrate --- chitosan citrate --- Eudragit® S100 --- layer-by-layer film --- mucoadhesive film --- Tenofovir controlled release --- pH responsive release --- vaginal preexposure prophylaxis --- HIV sexual transmission --- chitin --- chitosan --- wound treatment --- derivatization --- nanocomposites --- chitosan --- antibacterial activity --- Clostridium perfringens --- pork sausage --- chitin --- chitosan --- chitooligosaccharides --- enzymatic modification --- biotechnology --- chitinase --- chitosanase --- lytic polysaccharide monooxygenase --- chitin deacetylase --- chitosan-coated liposomes --- chitosan hydrogel --- mucoadhesion --- vaginal infections --- antibacterial activity --- Staphylococcus epidermidis --- Staphylococcus aureus --- chitin --- roller compaction --- ball milling --- direct compression --- compression work --- crushing strength --- Hausner ratio --- Kawakita analysis --- bulk density --- dissolution

Recent Development of Electrospinning for Drug Delivery

Authors: --- ---
ISBN: 9783039281404 9783039281411 Year: Pages: 206 DOI: 10.3390/books978-3-03928-141-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Therapeutics
Added to DOAB on : 2020-04-07 23:07:09
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Several promising techniques have been developed to overcome the poor solubility and/or membrane permeability properties of new drug candidates, including different fiber formation methods. Electrospinning is one of the most commonly used spinning techniques for fiber formation, induced by the high voltage applied to the drug-loaded solution. With modifying the characteristics of the solution and the spinning parameters, the functionality-related properties of the formulated fibers can be finely tuned. The fiber properties (i.e., high specific surface area, porosity, and the possibility of controlling the crystalline–amorphous phase transitions of the loaded drugs) enable the improved rate and extent of solubility, causing a rapid onset of absorption. However, the enhanced molecular mobility of the amorphous drugs embedded into the fibers is also responsible for their physical–chemical instability. This Special Issue will address new developments in the area of electrospun nanofibers for drug delivery and wound healing applications, covering recent advantages and future directions in electrospun fiber formulations and scalability. Moreover, it serves to highlight and capture the contemporary progress in electrospinning techniques, with particular attention to the industrial feasibility of developing pharmaceutical dosage forms. All aspects of small molecule or biologics-loaded fibrous dosage forms, focusing on the processability, structures and functions, and stability issues, are included.

Keywords

electrospinning --- gentamicin sulfate --- polylactide-co-polycaprolactone --- drug release kinetics --- tissue engineering --- growth factor --- diabetic --- wound healing --- nanocomposite --- electrospinning --- coaxial spinning --- core-sheath nanofibers --- biomedical --- drug delivery --- electrospinning --- scale-up --- processability --- biopharmaceuticals --- oral dosage form --- grinding --- aceclofenac --- nanofiber --- electrospinning --- scanning electron microscopy --- fourier transform infrared spectroscopy --- differential scanning calorimetry --- nanotechnology --- biotechnology --- probiotics --- Lactobacillus --- Lactococcus --- electrospinning --- nanofibers --- drying --- local delivery --- viability --- antibacterial activity --- bacterial bioreporters --- drug release --- electrospinning --- microfibers --- nanofibers --- UV imaging --- wetting --- in situ drug release --- nanofibers --- electrospinning --- poorly water-soluble drug --- piroxicam --- hydroxypropyl methyl cellulose --- polydextrose --- scanning white light interferometry --- nanotechnology --- nanofibers --- traditional electrospinning --- ultrasound-enhanced electrospinning --- drug delivery system --- haemanthamine --- plant-origin alkaloid --- electrospinning --- amphiphilic nanofibers --- self-assembled liposomes --- physical solid-state properties --- drug release --- electrospinning --- PCL --- gelatin --- clove essential oil --- antibacterial --- biocompatibility --- artificial red blood cells --- electrospinning and electrospray --- pectin --- oligochitosan --- hydrogel --- microcapsules --- electrospinning --- wound dressings --- solvent casting --- 3D printing --- polymeric carrier --- n/a

Electrospun Nanofibers for Biomedical Applications

Authors: --- ---
ISBN: 9783039287741 / 9783039287758 Year: Pages: 308 DOI: 10.3390/books978-3-03928-775-8 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General)
Added to DOAB on : 2020-06-09 16:38:57
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Electrospinning is a versatile and effective technique widely used to manufacture nanofibrous structures from a diversity of materials (synthetic, natural or inorganic). The electrospun nanofibrous meshes’ composition, morphology, porosity, and surface functionality support the development of advanced solutions for many biomedical applications. The Special Issue on “Electrospun Nanofibers for Biomedical Applications” assembles a set of original and highly-innovative contributions showcasing advanced devices and therapies based on or involving electrospun meshes. It comprises 13 original research papers covering topics that span from biomaterial scaffolds’ structure and functionalization, nanocomposites, antibacterial nanofibrous systems, wound dressings, monitoring devices, electrical stimulation, bone tissue engineering to first-in-human clinical trials. This publication also includes four review papers focused on drug delivery and tissue engineering applications.

Keywords

sol-gel --- electrospinning --- hydroxyapatite --- nanofiber --- antibacterial --- titanium --- antibacterial coatings --- electrospinning --- nanocomposite coatings --- TiO2 photocatalytic --- orthopedic infections --- electrospinning --- 3D printing --- nanofibers --- encapsulation --- protein diffusion --- in vivo tissue engineering --- immuno-isolation --- transplantation --- electrospinning --- sputtering --- drug delivery --- wound dressing --- biocompatibility --- tissue engineering --- biomimetic scaffolds --- gelatin --- electrospinning --- micromolding --- biomaterials --- poly(lactic acid) (PLLA) --- bioactive glass --- scaffolds --- electrospinning --- composite fibres --- bone regeneration --- poly(vinylidene fluoride) --- composite nanofiber --- piezoelectricity --- antioxidant activity --- well-aligned nanofibers --- P(VDF-TrFE) --- piezoelectric nanogenerator --- preosteoblasts electrospinning --- silicone modified polyurethane nanofibers --- physical properties --- cell attachment --- cell proliferation --- cytotoxicity --- biopolymers --- packaging --- pharmaceutical --- biomedical --- electrospinning --- alginate --- gelatin fibers --- ZnO particles --- antibacterial activity --- electrospinning --- nanofibers --- fabrication --- therapeutics --- biomedical applications --- antibody immobilization --- electrospun nanofibers --- TNF-? capture --- human articular chondrocytes --- rheumatoid arthritis --- nanofibers --- microfluidic chip --- electrospinning --- live assay --- hepatocellular carcinoma cells --- PLA95 --- biocompatibility --- guided tissue regeneration (GTR) --- electrospinning --- electrospun fiber mats --- mechanobiology --- glioblastoma --- biomaterials --- finite element modeling --- electrospun nanofibers --- cancer treatment --- drug release --- nanomedicine --- biocompatible polymers --- hyperthermia

Lignans

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ISBN: 9783038979081 9783038979098 Year: Pages: 384 DOI: 10.3390/books978-3-03897-909-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Organic Chemistry
Added to DOAB on : 2019-06-26 10:09:00
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Lignans are a class of natural products found mainly in plants. They have a wide variety of structures and exhibit a range of potent biological activities. Lignans are also well-known components of a number of widely eaten foods and are frequently studied for their dietary impact. Owing to these factors, lignans have been extensively studied by scientists from a large number of disciplines. This collection of research and review articles describes topics ranging in scope from the recent isolation and structural elucidation of new lignans, strategies towards the chemical synthesis of lignans, assessment of their biological activities and potential for further therapeutic development. Research showing the impact of lignans in the food and agricultural industries is also presented.

Keywords

lignans --- chemometrics --- neolignans --- flavonolignans --- chemical space --- drug-like --- Lespedeza cuneata --- lignan glycoside --- flavonoid glycoside --- cytotoxicity --- adipocyte and osteoblast differentiation --- Bursera --- Burseraceae --- lignans --- lignan --- molecular dynamics --- intermolecular interactions --- graph theory --- lignans --- heilaohu --- tujia ethnomedicine --- chemical characterization --- cytotoxicity --- antioxidant --- cultivar --- environment --- flax --- flavonol --- genetic --- hydroxycinnamic acid --- lignan --- seed --- aryldihydronaphthalene lignan --- arylnaphthalene lignan --- oxidation --- synthesis --- lignans --- dibenzyl butyrolactones --- anti-proliferative --- acyl-Claisen --- stereoselective synthesis --- Schisandra rubriflora --- Schisandra chinensis --- red-flowered Chinese magnolia vine --- Chinese magnolia vine --- lignans --- phytochemical analysis --- UHPLC-MS/MS --- anti-inflammatory activity --- LOX --- COX --- sPLA2 --- lignans --- neolignans --- Lauraceae --- chemical components --- chemical structures --- dietary lignans --- national databases --- food groups --- dietary intake --- harmonized databases --- lignans --- in silico studies --- podophyllotoxin --- antibacterial activity --- acetylcholinesterase inhibitors --- antioxidant activity --- cytotoxicity --- natural products --- total synthesis --- lignan --- Bursera fagaroides --- podophyllotoxin-type lignans --- cell cycle --- cell migration --- epiboly --- microtubules --- F-actin --- cancer --- lignans --- animal health --- cattle --- enterolignan --- human health --- pharmacokinetic --- ruminant --- secoisolariciresinol diglucoside --- Lignan --- bitterness --- taste-active compound --- quantification --- oak ageing --- lignans --- norlignans --- 9-norlignans --- semisynthesis --- hydroxymatairesinol --- bioactivity --- lignans --- oxidation --- lignans --- diet --- antioxidants --- health promotion --- chronic diseases --- Schisandrae Chinensis Fructus --- wild --- cultivated --- multiple bioactive components --- simultaneous quantitation

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2020 (7)

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