Abstract The importance of antibacterial materials for biomedical applications is growing nowadays. presented article deals with the characterization structural, mechanical and thermal properties polymeric films based on polyvinyl alcohol (PVA) silver nitrate, which can find their applicability in wound dressing components protective coating. methods transmission electron microscopy, UV–vis XRD spectroscopy, optical differential scanning calorimetry, stress–strain analysis, agar diffusion...

There has recently been increased interest in biodegradable and sustainable packaging within the food industry. Biopolymer materials based on renewable biomass can be used as alternatives to conventional plastic packaging. A corn protein, zein, possesses excellent film-forming properties because of its hydrophobic nature. It for making edible films producing nanofibrous layers. Combination with polysaccharides like chitosan offers promising prospects production delivery systems controlled...

Antimicrobial biopolymer films and coatings are of great interest for many applications. Different chitosan systems were prepared characterized to evaluate the effect their composition on physical antimicrobial properties. Three types emulsifiers (Tween 20, 80, 85) used as stabilizing agents, combined with thyme essential oil (from two producers) applied an active substance. A predominant role stabilizer its hydrophilic–lipophilic balance value was proven. The incorporation surfactant into...

Stable antimicrobial nisin layers were prepared on the carrying medium-polyvinyl alcohol (PVA) films, crosslinked by glutaric acid. Surface plasma dielectric coplanar surface barrier discharge (DCSBD) modification of polyvinyl was used to improve hydrophilic properties and provide better adhesion biologically active peptide-nisin polymer. The films studied in correlation their cross-linking degree. Nisin attached directly from salt solution commercial product. In order achieve a stable...

Antibacterial biodegradable PLA-based nanofibers loaded with phenolic monoterpenes - thymol, eugenol, carvacrol, and cinnamaldehyde, were prepared by electrospinning. The effect of bioactive molecule on the surface, thermal, morphological, biological properties has been investigated about potential pharmaceutical food processing applications. Fiber diameters ranged from 320nm for PLA fibrous mat up to 480nm membrane 6% thymol. All active exhibited hydrophobic surfaces a slightly decreasing...

Nanofibrous zein/PEG based membranes incorporated with natural antimicrobial compounds were fabricated by electrospinning method. Structural and thermal analysis of prepared nanofibers revealed that the applied processing technique did not significantly affect structure pristine zein polymer. Morphological characterization showed a higher degree polydispersity in fibers modified eugenol, thymol, nisin, or their combinations, an average fiber diameter range from 300 to 390nm. samples eugenol...

The circular economy of animal by-products rich in collagen focuses on converting into peptides with a defined molecular weight. Collagen hydrolysates prepared by biotechnological methods from chicken gizzards, deer tendons, and Cyprinus carpio skeletons can be an alternative source for cosmetic products that traditionally use bovine or porcine hydrolysates. were characterized antioxidant activity, surface tension, solution contact angle, other parameters (dry weight, ash content, clarity)....

Biofilm is a structured community of microorganisms adhering to surfaces various polymeric materials used in food packaging. Microbes the biofilm may affect quality. However, presence can ensure biodegradation discarded This work aims evaluate formation on selected biodegradable polymer films: poly (lactic acid) (PLA), (butylene adipate-co-terephthalate) (PBAT), and succinate) (PBS) by bacterial strains; collection strains Escherichiacoli, Staphylococcusaureus; Bacillus pumilus,...

Poloxamers (P184, P188, and P407) have been investigated as the carrier system for eugenol or thymol. A synergic effect of mixed was proved by enhanced micellar parameters, with a lower critical micelle concentration (about 0.06 mM) highest surface adsorption 9 × 10

The effect of two essential oils (EOs), from Origanum vulgare and majorana , their structural properties, concentration on physical antimicrobial characteristics chitosan based solutions as well films was investigated. Results showed that significantly different behaviour induced by variation in the compositions given oils. Film-forming (FFS) containing oregano oil comprised considerably greater particles comparison with marjoram samples. Similarly, changes were confirmed SEM analysis...

Zein is renewable plant protein with valuable film-forming properties that can be used as a packaging material. It known the addition of natural cross-linkers enhance film's tensile properties. In this study, we aimed to prepare antimicrobial zein-based films enriched monolaurin, eugenol, oregano, and thyme essential oil. Films were prepared using solvent casting technique from ethanol solution. Their physicochemical investigated structural, morphological, thermal techniques. Polar...

Antimicrobial hand gels have become extremely popular in recent years due to the COVID-19 pandemic. Frequent use of sanitising gel can lead dryness and irritation skin. This work focuses on preparation antimicrobial acrylic acid (Carbomer)-based enhanced by non-traditional compounds-mandelic essential oils-as a substitute for irritating ethanol. Physicochemical properties (pH viscosity), stability sensory attributes prepared were investigated. activity against representative Gram-positive...

Abstract Summary: Commercially available polymer Bioflex® 219F, blend of polylactic acid and biodegradable co‐polyester, was used for film preparation, performed on mono‐extrusion blown moulding machine. Resulting thin investigated biodegradability in composting conditions 6 weeks. The influence microbial attack mechanical, physico‐chemical properties, weight loss surface morphology tested weekly. results obtained during weeks indicate relatively good accessibility to biological degradation....

The efficiency of filtration membranes is substantially lowered by bacterial attachments and potential fouling processes, which reduce their durability lifecycle. antibacterial antifouling properties exhibited the added materials play a substantial role in application. We tested material poly(vinylidene fluoride)-co-hexafluoropropylene (PDVF-co-HFP) based on an electrospun copolymer, where agent was incorporated with small amount ester glycerol consecutively caprylic, capric, lauric acids....

Wasted synthetic fabrics are a type of textile waste source; the reuse them brings environmental protection and turns into valuable material. In this work, used nylon (polyamide) stockings were transmuted fine fibrous membrane via an electrospinning process. addition, safety antibacterial agent, monoacylglycerol (MAG), was incorporated recycled membrane. The results revealed that neat, polyamide (rPA) fibers with hydrophobic surface could be converted hydrophilic by blending various amounts...

Panthenol is an active substance used in dermatology to protect the health of skin, treat defects morphology stratum corneum. In cosmetology, hydrating, softening, and barrier function panthenol are utilized. Detailed studies evaluating efficacy cosmetic pharmaceutical semisolid formulations establishing its optimum concentration needed.To investigate whether addition 5-13 wt% o/w w/o emulsions increases hydration supports properties skin. Rheological sensory analysis prepared...

Abstract Poly(vinyl alcohol) (PVA) was modified by zinc nitrate in the concentration range from 0 to 22.29 wt.% using solvent cast technique. The resulting material characterized optical microscopy, stress-strain analysis, differential scanning calorimetry, UV-visible spectroscopy, and Fourier transform-infrared spectroscopy. In addition, antibacterial properties of prepared films were tested against both gram positive negative bacterial strains. results show uniform distribution modifier...

Abstract Medical‐grade polyvinyl chloride was modified with sodium ampicillin in a concentration range from 0 to 5 wt % by solvent casting technique using cyclohexanone and N,N ‐dimethylformamide. The obtained polymeric systems were characterized optical microscopy, tensile test, scanning electron microscopy. In addition, vitro antibacterial activity against Gram‐negative Gram‐positive bacteria determined an agar diffusion test. Antibiotic release experiments performed distilled water...

Plasma polymer films typically consist of very short fragments the precursor molecules. That rather limits applicability most plasma polymerisation/plasma-enhanced chemical vapour deposition (PECVD) processes in cases where retention longer molecular structures is desirable. Plasma-assisted thermal (PAVTD) circumvents this limitation by using a classical bulk as high weight "precursor". As model study, polylactic acid (PLA) has been used. The resulting PLA-like were characterised mostly...

The aim of the paper is to test stability and biophysical properties hydrophilic lipophilic emulsions with selected vegetable seed oils: Limnanthes alba, Prunus amygdalus dulcis, Cannabis sativa, Rosa rubiginosa Hellianthus annuus. Biophysical are investigated in vivo using non-invasive instrumental methods (corneometry, tewametry pH) a group 12 healthy women volunteers. Their profiles (colour, phase separation centrifugation) under various temperatures (9, 25, 37 57 °C) storage time (24...

Medical-grade polyvinyl chloride was modified by incorporation of silver nitrate in a concentration range from 0 to 5 wt.% using solvent casting technique. Agar diffusion test performed evaluate in-vitro antimicrobial properties prepared samples. The obtained systems were characterized tensile test, X-ray photoelectron spectroscopy, scanning electron microscopy, and optical microscopy. micrographs revealed better morphological disposition particles along the matrix samples cast...

Monoacylglycerols (MAGs) have proven of great interest to the foodstuffs industry due promising antibacterial activity they show for controlling microbial contamination. Prior this paper, agent had not been incorporated in a nanofibrous membrane. This study details convenient fabrication membranes based on polyvinyl butyral (PVB) containing various concentrations monocaprin (MAG 10) by an electrospinning process. Increasing concentration MAG 10 caused differences appear shape nanofibers,...

Polyvinyl chloride/silver nitrate composites were prepared by thermoplastic compounding. Antibacterial activity against gram-negative and gram-positive bacteria was determined agar diffusion test. X-ray diffraction, photoelectron spectroscopy, optical microscopy analyses carried out to determine the effect of polyvinyl chloride modification on structural properties. The mechanical characteristics films observed using stress-strain analysis. results revealed that final exhibit sufficient...