scholarly journals Development of nanostructured bioplastic material for wound healing

2021 ◽  
Author(s):  
Ilmira R. Gilmutdinova ◽  
Elena Kostromina ◽  
Regina D. Yakupova ◽  
Petr S. Eremin
Keyword(s):  
Hyaluronic Acid ◽  
Clinical Practice ◽  
Physical Properties ◽  
Human Fibroblasts ◽  
Fibroblast Cell ◽  
Human Skin Fibroblast ◽  
High Porosity ◽  
The Matrix ◽  
Photochemical Crosslinking ◽  
Fibroblast Cell Culture

The development of new biomaterials whose characteristics are as close as possible to the properties of living human tissues is one of the most promising areas of regenerative medicine. This work aimed at creating a bioplastic material based on collagen, elastin and hyaluronic acid and studying its structure and properties to assess the prospects for further use in clinical practice. Bioplastic material was obtained by mixing collagen, hyaluronic acid and elastin in predetermined proportions with distilled water. We treated the material with photochemical crosslinking to stabilize biofilm in a liquid medium and form a nanostructured scaffold. A commercial human skin fibroblast cell culture was used to assess the biomaterial cytotoxicity and biocompatibility. The visualization and studies of the biomaterial structure were performed using light and scanning electron microscopy. It has been shown that the obtained biomaterial is characterized by high resilience; it has also a high porosity. The co-culturing of the bioplastic material and human fibroblasts did not reveal any of its cytotoxic effects on cells in culture. It was shown that the biomaterial samples could maintain physical properties in the culture medium for more than 10 days, while the destruction of the matrix was observed 3–4 weeks after the beginning of incubation. Thus, the created biomaterial can be used on damaged skin areas due to its physical properties and structure. The use of the developed biomaterial provides effective conditions for good cell proliferation, which allows us to consider it as a promising wound cover for use in clinical practice.

scholarly journals Development of nanostructured bioplastic material for wound healing

2021 ◽  
Author(s):  
Ilmira R. Gilmutdinova ◽  
Elena Kostromina ◽  
Regina D. Yakupova ◽  
Petr S. Eremin
Keyword(s):  
Hyaluronic Acid ◽  
Clinical Practice ◽  
Physical Properties ◽  
Human Fibroblasts ◽  
Fibroblast Cell ◽  
Human Skin Fibroblast ◽  
High Porosity ◽  
The Matrix ◽  
Photochemical Crosslinking ◽  
Fibroblast Cell Culture

The development of new biomaterials whose characteristics are as close as possible to the properties of living human tissues is one of the most promising areas of regenerative medicine. This work aimed at creating a bioplastic material based on collagen, elastin and hyaluronic acid and studying its structure and properties to assess the prospects for further use in clinical practice. Bioplastic material was obtained by mixing collagen, hyaluronic acid and elastin in predetermined proportions with distilled water. We treated the material with photochemical crosslinking to stabilize biofilm in a liquid medium and form a nanostructured scaffold. A commercial human skin fibroblast cell culture was used to assess the biomaterial cytotoxicity and biocompatibility. The visualization and studies of the biomaterial structure were performed using light and scanning electron microscopy. It has been shown that the obtained biomaterial is characterized by high resilience; it has also a high porosity. The co-culturing of the bioplastic material and human fibroblasts did not reveal any of its cytotoxic effects on cells in culture. It was shown that the biomaterial samples could maintain physical properties in the culture medium for more than 10 days, while the destruction of the matrix was observed 3–4 weeks after the beginning of incubation. Thus, the created biomaterial can be used on damaged skin areas due to its physical properties and structure. The use of the developed biomaterial provides effective conditions for good cell proliferation, which allows us to consider it as a promising wound cover for use in clinical practice.

Creation of a Novel Nanostructured Bioplastic Material for Combustiology

2020 ◽  
Vol 36 (4) ◽  
pp. 65-68
Author(s):  
E.Yu. Kostromina ◽  
R.D. Yakupova ◽  
P.S. Eremin
Keyword(s):  
Hyaluronic Acid ◽  
Clinical Practice ◽  
Physical Properties ◽  
Human Fibroblasts ◽  
Fibroblast Cell ◽  
Human Skin Fibroblast ◽  
High Porosity ◽  
The Matrix ◽  
New Material ◽  
Fibroblast Cell Culture

The technique of obtainment of a new bioplastic material based on collagen, elastin and hyaluronic acid is described. The results of a study of the biomaterial structure and properties to assess the prospects for its further use in clinical practice are also presented. To prepare the material samples, collagen, elastin and hyaluronic acid were mixed in predetermined proportions with distilled water, and the resulting biofilm was crosslinked by UV irradiation. A commercial human skin fibroblast cell culture (HDF) was used to assess the biomaterial cytotoxicity and biocompatibility; as a result, it was shown that cytotoxicity is absent in it. The visualization and studies of the biomaterial structure were carried out using light microscopy. The new material was shown to be highly elastic and resilient; it also had a high porosity with a pore diameter of 100-200 um. It was shown that the biomaterial samples were able to maintain physical properties in the culture medium for more than 10 days, while the complete destruction of the matrix was observed 3-4 weeks after the beginning of incubation. Due to its physical properties and structure, and also the capacity of providing effective conditions for good cell proliferation, the created biomaterial can be used as a wound cover in the damaged skin areas. This allows us to consider the new biomaterial promising for clinical practice. cell technologies, tissue-engineered constructs, bioplastic material, collagen, human fibroblasts.

DEVELOPMENT OF NANOSTRUCTURED BIOPLASTIC MATERIAL FOR COMBUSTIOLOGY

2020 ◽  
pp. 45-48
Author(s):  
P. Eremin ◽  
Y. Kostromina ◽  
R. Yakupova
Keyword(s):  
Cell Proliferation ◽  
Hyaluronic Acid ◽  
Clinical Practice ◽  
Physical Properties ◽  
Culture Medium ◽  
Human Fibroblasts ◽  
Structure And Properties ◽  
Cytotoxic Effects ◽  
Good Cell ◽  
Effective Conditions

The technique of obtaining a new bioplastic material based on collagen, elastin and hyaluronic acid is described. The results of a study of the biomaterial structure and properties in order to assess the prospects for its further use in clinical practice are presented. Co-culturing of the bioplastic material and human fibroblasts did not reveal any its cytotoxic effects on cells in culture. It was shown that the biomaterial samples were able to maintain physical properties in the culture medium for more than 10 days. Due to its physical properties and structure, the use of created biomaterial provides effective conditions for good cell proliferation, which allows us to consider it as a promising biomaterial for use in clinical practice.

scholarly journals Ionic Nanocomplexes of Hyaluronic Acid and Polyarginine to Form Solid Materials: A Green Methodology to Obtain Sponges with Biomedical Potential

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 944
Author(s):  
María Gabriela Villamizar-Sarmiento ◽  
Ignacio Moreno-Villoslada ◽  
Samuel Martínez ◽  
Annesi Giacaman ◽  
Victor Miranda ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
High Capacity ◽  
Solid Material ◽  
Fibroblast Cell ◽  
High Porosity ◽  
Design Development ◽  
Solid Materials ◽  
Transmission Electron ◽  
Freeze Dried ◽  
Scanning Transmission

We report on the design, development, characterization, and a preliminary cellular evaluation of a novel solid material. This material is composed of low-molecular-weight hyaluronic acid (LMWHA) and polyarginine (PArg), which generate aqueous ionic nanocomplexes (INC) that are then freeze-dried to create the final product. Different ratios of LMWHA/PArg were selected to elaborate INC, the size and zeta potential of which ranged from 100 to 200 nm and +25 to −43 mV, respectively. Turbidimetry and nanoparticle concentration analyses demonstrated the high capacity of the INC to interact with increasing concentrations of LMWHA, improving the yield of production of the nanostructures. Interestingly, once the selected formulations of INC were freeze-dried, only those comprising a larger excess of LMWHA could form reproducible sponge formulations, as seen with the naked eye. This optical behavior was consistent with the scanning transmission electron microscopy (STEM) images, which showed a tendency of the particles to agglomerate when an excess of LMWHA was present. Mechanical characterization evidenced low stiffness in the materials, attributed to the low density and high porosity. A preliminary cellular evaluation in a fibroblast cell line (RMF-EG) evidenced the concentration range where swollen formulations did not affect cell proliferation (93–464 µM) at 24, 48, or 72 h. Considering that the reproducible sponge formulations were elaborated following inexpensive and non-contaminant methods and comprised bioactive components, we postulate them with potential for biomedical purposes. Additionally, this systematic study provides important information to design reproducible porous solid materials using ionic nanocomplexes.

scholarly journals Effect of Implantation and Construction Dental Materials on Fibroblast Cell Culture

2017 ◽  
Vol 2 (1) ◽  
pp. 459
Author(s):  
V.N. Olesova ◽  
N.A. Uzunyan ◽  
M.R. Filonov ◽  
F.G. Shumakov ◽  
Y.A. Povstyanko
Keyword(s):  
Cell Culture ◽  
Experimental Study ◽  
Polymethyl Methacrylate ◽  
Human Fibroblasts ◽  
Dental Materials ◽  
Fibroblast Cell ◽  
Cobalt Alloy ◽  
Negative Effect ◽  
Light Curing ◽  
Fibroblast Cell Culture

An experimental study of biocompatibility of the basic prosthetic materials in the cell culture of human fibroblasts was performed. It revealed a negative effect on the morphology of the cells of chromium-cobalt alloy, the material for overdentures based on polymethyl methacrylate, the light-curing composite.

COLMONOY 805

Alloy Digest ◽  
1998 ◽  
Vol 47 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Abrasion Resistance ◽  
Coarse Particles ◽  
Powder Metal ◽  
Chromium Boride ◽  
Nickel Chromium ◽  
The Matrix

Abstract Colmonoy 805 is a nickel-chromium-boron alloy with coarse particles of chromium boride added to give it excellent sliding-type abrasion resistance. The alloy contains chromium boride in the matrix as large added particles. It is supplied only as a crushed powder for application with Colmonoy’s Fuseweld process. This datasheet provides information on composition, physical properties, microstructure, and elasticity. It also includes information on corrosion resistance as well as joining and powder metal forms.Filing Code: Ni-233. Producer or source: Wall Colmonoy Corporation. Originally published September 1976, revised December 1998.

scholarly journals Three-Dimensional Printable Hydrogel Using a Hyaluronic Acid/Sodium Alginate Bio-Ink

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 794 ◽  
Author(s):  
Su Jeong Lee ◽  
Ji Min Seok ◽  
Jun Hee Lee ◽  
Jaejong Lee ◽  
Wan Doo Kim ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Hyaluronic Acid ◽  
Sodium Alginate ◽  
Three Dimensional ◽  
Fibroblast Cell ◽  
Chemical Crosslinking ◽  
Fibroblast Cell Line ◽  
Engineering Applications ◽  
Encapsulated Cells ◽  
Crosslinking Agents

Bio-ink properties have been extensively studied for use in the three-dimensional (3D) bio-printing process for tissue engineering applications. In this study, we developed a method to synthesize bio-ink using hyaluronic acid (HA) and sodium alginate (SA) without employing the chemical crosslinking agents of HA to 30% (w/v). Furthermore, we evaluated the properties of the obtained bio-inks to gauge their suitability in bio-printing, primarily focusing on their viscosity, printability, and shrinkage properties. Furthermore, the bio-ink encapsulating the cells (NIH3T3 fibroblast cell line) was characterized using a live/dead assay and WST-1 to assess the biocompatibility. It was inferred from the results that the blended hydrogel was successfully printed for all groups with viscosities of 883 Pa∙s (HA, 0% w/v), 1211 Pa∙s (HA, 10% w/v), and 1525 Pa∙s, (HA, 30% w/v) at a 0.1 s−1 shear rate. Their structures exhibited no significant shrinkage after CaCl2 crosslinking and maintained their integrity during the culture periods. The relative proliferation rate of the encapsulated cells in the HA/SA blended bio-ink was 70% higher than the SA-only bio-ink after the fourth day. These results suggest that the 3D printable HA/SA hydrogel could be used as the bio-ink for tissue engineering applications.

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