Skin regeneration requires a three-dimensional (3D) scaffold for cell adhesion, growth and proliferation. A type of the offering 3D structure is nonwoven material produced via melt-blown technique. Process parameters this technique can be adapted to improve cellular response. Polylactic acid (PLA) was used produce by The key process parameters, i.e., head air temperature, were changed in range from 180–270 °C obtain eight different materials (MB1–MB8). relationships between morphology,...

The extracellular matrix (ECM) can be a convenient scaffold used in tissue engineering, regenerative medicine and pharmacy. synthetic cell should imitate the natural both composition architecture. study examined fibrous chitosan modified with fragments of human collagen I (10–15 amino acids) mimicking internal sphere native protein. surface fibers was by physical chemical methods to obtain polysaccharide-peptide conjugates, which may considered analogous complex glycosaminoglycans (GAG)...

Alginate-based materials have gained significant attention in the medical industry due to their biochemical properties. In this article, we aimed synthesize Cotton-Alginate-Copper Composite Materials (COT-Alg(-)Cu(2+)). The main purpose of study was assess properties new composites area blood plasma coagulation processes, including activated partial thromboplastin time (aPTT), prothrombin (PT), and thrombin (TT). This also involved vitro antimicrobial activity evaluation against...

Abstract This study presents the results of research concerning fabrication nonwovens from biodegradable polymer blends using melt-blown method. The experiments performed within framework confirmed possibility obtaining composites based on polylactide (PLA) with poly(hydroxyalkanoates) (PHA) and another aliphatic-aromatic copolyester. obtained products were subjected to analyses chemical structure Fourier Transform Infrared Spectroscopy(FTIR) Attenuated Total Reflectance(ATR) physical...

In recent years, due to an expansion of antibiotic-resistant microorganisms, there has been growing interest in biodegradable and antibacterial polymers that can be used selected biomedical applications. The present work describes the synthesis antimicrobial polylactide-copper alginate (PLA–ALG–Cu2+) composite fibers their characterization. composites were prepared by immersing PLA aqueous solution sodium alginate, followed ionic cross-linking chains within polylactide with Cu(II) ions yield...

The aim of this study was to investigate an antimicrobial and degradable composite material consisting melt-blown poly(lactic acid) nonwoven fabrics, alginate, zinc. This paper describes the method preparation characterization physicochemical properties new fibrous material. procedure consists fabrication fabric two steps dip-coating modification: (1) impregnation samples in solution alginic sodium salt (2) immersion a zinc (II) chloride. analysis included scanning electron microscopy (SEM),...

Abstract The authors devised conditions for the formation of nanocomposite calcium alginate fibers containing tricalcium phosphate (TCP) or montmorillonite (MMT). rheological, sorptive, and strength properties these fibers, as well their porous supramolecular structures were subjected to analysis. It has been concluded that presence nanoadditives in material decreases susceptibility distortion drawing stage. obtained are characterized by an even distribution nanoadditive on fiber surface....

Abstract The conditions for producing nanocomposite fibers composed of calcium alginate, containing a hydroxyapatite nanoadditive were devised and the rheological, sorptive, strength properties these fibers, as well their porous supramolecular structure subjected to analysis. It has been concluded that presence HAp in material alginate decreases susceptibility distortion drawing stage, which results tenacity being lower by 2cN/tex than with no nanoadditive. obtained are characterised value...

Current restrictions on the use of antibiotics, associated with increases in bacterial resistance, require new solutions, including materials antibacterial properties. In this study, copper alginate fibers obtained using classic wet method were used to make nonwovens which modified arginine-glycine-aspartic acid (RGD) derivatives. Stable polysaccharide-peptide conjugates formed by coupling 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium toluene-4-sulfonate (DMT/NMM/TosO−), and...

Abstract Carbon nanotubes (CNTs) were used to modify polyacrylonitrile (PAN) polymer. The PAN/CNT composite fibers spun from dimethylformamide solutions containing different types of CNTs. effect nanotube addition the fiber precursor on resulting mechanical properties is discussed. In this study, we examined relationship rheological PAN spinning various CNTs and tensile strength fibers. presence in solution enhanced its deformability during drawing stage. This resulted a higher nanotubes, as...

This work concerns the production of fibrous composite materials based on biodegradable polymers such as alginate, dibutyryl chitin (DBC) and poly-ε-caprolactone (PCL). For fibres from these polymers, various spinning methods were used in order to obtain different composition structure. In case alginate containing nanoadditive tricalcium phosphate (TCP), traditional method forming wet solution was used. However other two electrospinning Two model systems tested for biocompatibility. The...

Abstract Spinning conditions for nano‐hydroxyapatite‐containing precursor polyacrylonitrile (PAN) fibers have been developed and their effects on the structure properties of nanocomposite PAN assessed. The prepared under are characterized by high strength, with total pore content being at a level 0.25 cm 3 /g. After carbonization, these designed use as implants that support stimulate process bone reconstruction. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 2881–2888,

Abstract The structural parameters and strength properties of a new generation polyacrylonitrile fibers have been analyzed. These fibers, after being carbonized, can be used in biomaterial engineering. They are characterized by high tensile 31–43 cN/tex. An advantageous influence nanoparticles added to the fiber matter on degree crystallinity has found. When hydroxyapatite incorporated into these their increases about 5%. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 760–765,

The aim of the research was to develop optimal conditions for manufacturing materials based on hyaluronic acid by electrospun method. studies were composed three stages: process selection solvent (mixture solvents), molecular weight acid, and concentration biopolymer in spinning solution. influence variable parameters rheological properties solutions electrospinning trails tested. Depending regime applied, fibers obtained characterised a diameter order 20 400 nm. As result development works...

The cross-linking of polysaccharides is a universal approach to affect their structure and physical properties. Both chemical methods are used for this purpose. Although provides good thermal mechanical stability the final products, compounds as stabilizers can integrity cross-linked substances or have toxic properties that limit applicability products. These risks might be mitigated by using physically gels. In present study, we attempted obtain hybrid materials based on carbon nonwovens...

Abstract We developed and elaborated manufacturing conditions for the production of alginic acid fibers with high sorption properties. The fibers' tenacity obtained at a level 16 cN/tex is suitable textile processing these fibers, will make it possible to produce new generation highly absorptive dressing materials. presence groups in fiber‐forming material allows us use them addition antibiotics, which makes extend antibacterial effects fibers. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008

Abstract This work describes the impact of basic parameters forming process on macroscopic structure, sorption properties, and strength fibers made chitin butyryl‐acetic copolyester (BOC). Regardless chemical structure BOC intrinsic viscosity polymer, solutions used in spinning industry are non‐Newtonian fluids diluted by shearing without flow boundary. Obtained have a high total pore volume; thus, they may be classified into group highly porous fibers. The nature volume result properties...