scholarly journals Physicochemical, Setting, Rheological, and Mechanical Properties of a Novel Bio-Composite Based on Apatite Cement, Bioactive Glass, and Alginate Hydrogel

2021 ◽  
Author(s):  
H. Mabroum ◽  
H. Noukrati ◽  
H. Ben youcef ◽  
B. Lefeuvre ◽  
H. Oudadesse ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bioactive Glass ◽  
Alginate Hydrogel ◽  
Apatite Cement

scholarly journals Novel Hydrogels of Chitosan and Poly (vinyl alcohol) Reinforced with Inorganic Particles of Bioactive Glass

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 691
Author(s):  
O. Sánchez-Aguinagalde ◽  
Ainhoa Lejardi ◽  
Emilio Meaurio ◽  
Rebeca Hernández ◽  
Carmen Mijangos ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Drug Release ◽  
Bioactive Glass ◽  
Vinyl Alcohol ◽  
Release Kinetics ◽  
The Body ◽  
Poly Vinyl Alcohol ◽  
X Ray Diffraction ◽  
Inorganic Particles ◽  
Release Studies

Chitosan (CS) and poly (vinyl alcohol) (PVA) hydrogels, a polymeric system that shows a broad potential in biomedical applications, were developed. Despite the advantages they present, their mechanical properties are insufficient to support the loads that appear on the body. Thus, it was proposed to reinforce these gels with inorganic glass particles (BG) in order to improve mechanical properties and bioactivity and to see how this reinforcement affects levofloxacin drug release kinetics. Scanning electron microscopy (SEM), X-ray diffraction (XRD), swelling tests, rheology and drug release studies characterized the resulting hydrogels. The experimental results verified the bioactivity of these gels, showed an improvement of the mechanical properties and proved that the added bioactive glass does affect the release kinetics.

Structural and Mechanical Properties of Bioactive Glass–Ceramic Composites

2016 ◽  
Vol 55 (3-4) ◽  
pp. 172-184 ◽  
Author(s):  
O. R. Parkhomei ◽  
N. D. Pinchuk ◽  
O. E. Sych ◽  
T. V. Tomila ◽  
G. B. Tovstonog ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bioactive Glass ◽  
Glass Ceramic ◽  
Ceramic Composites

scholarly journals Preparation of alginate hydrogel microparticles by gelation introducing cross-linkers using droplet-based microfluidics: a review of methods

2021 ◽  
Vol 25 (1) ◽  
Author(s):  
Cheng Zhang ◽  
Romain Grossier ◽  
Nadine Candoni ◽  
Stéphane Veesler
Keyword(s):  
Mechanical Properties ◽  
Physicochemical Properties ◽  
Ease Of Use ◽  
Narrow Size Distribution ◽  
Future Perspectives ◽  
Alginate Hydrogel ◽  
Hydrogel Microparticles ◽  
Potential Applications ◽  
Excellent Control ◽  
On Chip

AbstractThis review examines the preparation of alginate hydrogel microparticles by using droplet-based microfluidics, a technique widely employed for its ease of use and excellent control of physicochemical properties, with narrow size distribution. The gelation of alginate is realized “on-chip” and/or “off-chip”, depending on where cross-linkers are introduced. Various strategies are described and compared. Microparticle properties such as size, shape, concentration, stability and mechanical properties are discussed. Finally, we consider future perspectives for the preparation of hydrogel microparticles and their potential applications.

Effect of Heat Treatment on the Properties of Polyetheretherketone and its Composite

2021 ◽  
Vol 1167 ◽  
pp. 23-33
Author(s):  
Alaa A. Mohammed
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Thermal Stability ◽  
Bioactive Glass ◽  
Glass Powder ◽  
Chemical Resistance ◽  
Positive Influence ◽  
Thermoplastic Polymer ◽  
High Chemical ◽  
High Chemical Resistance

Polyetheretherketone (PEEK) is a semicrystalline thermoplastic polymer with high chemical resistance, thermal stability and excellent mechanical properties. In the present work, neat PEEK and 3% bioactive glass/PEEK composites were annealed at various temperatures (100 °C, 200 °C and 300 °C) for (30 and 60) min and characterized with mechanical and density tests, differential scanning calorimetery and Fourier transform infrared spectroscopy. Results manifested bioactive glass powder enhanced the properties of the PEEK matrix. Thermal annealing at (200 and 300 °C) had a positive influence on the mechanical properties and density owing to increase in the level of crystallinity, whereas annealing at (100 °C) had not effect on the properties.

scholarly journals A New Generation of Electrospun Fibers Containing Bioactive Glass Particles for Wound Healing

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5651
Author(s):  
Rachele Sergi ◽  
Valeria Cannillo ◽  
Aldo R. Boccaccini ◽  
Liliana Liverani
Keyword(s):  
Mechanical Properties ◽  
Wound Healing ◽  
Bioactive Glass ◽  
Flexible Structures ◽  
Biological Properties ◽  
Cellular Viability ◽  
Bioactive Glasses ◽  
Electrospinning Technique ◽  
Potential Applications ◽  
Biological Performance

Chitosan fibers blended with polyethylene oxide (CHIT_PEO) and crosslinked with genipin were fabricated by electrospinning technique. Subsequently, CHIT_PEO bioactive glass composite electrospun mats were fabricated with the aim to achieve flexible structures with adequate mechanical properties and improved biological performance respect to CHIT_PEO fibers, for potential applications in wound healing. Three different compositions of bioactive glasses (BG) were selected and investigated: 45S5 BG, a Sr and Mg containing bioactive glass (BGMS10) and a Zn-containing bioactive glass (BGMS_2Zn). Particulate BGs (particles size < 20 μm) were separately added to the starting CHIT_PEO solution before electrospinning. The two recently developed bioactive glasses (BGMS10 and BGMS_2Zn) showed very promising biological properties in terms of bioactivity and cellular viability; thus, such compositions were added for the first time to CHIT_PEO solution to fabricate composite electrospun mats. The incorporation of bioactive glass particles and their distribution into CHIT_PEO fibers were assessed by SEM and FTIR analyses. Furthermore, CHIT_PEO composite electrospun mats showed improved mechanical properties in terms of Young’s Modulus compared to neat CHIT_PEO fibers; on the contrary, the values of tensile strain at break (%) were comparable. Biological performance in terms of cellular viability was investigated by means of WST-8 assay and CHIT_PEO composite electrospun mats showed cytocompatibility and the desired cellular viability.

A highly bioactive and biodegradable poly(glycerol sebacate)–silica glass hybrid elastomer with tailored mechanical properties for bone tissue regeneration

2015 ◽  
Vol 3 (16) ◽  
pp. 3222-3233 ◽  
Author(s):  
Xin Zhao ◽  
Yaobin Wu ◽  
Yuzhang Du ◽  
Xiaofeng Chen ◽  
Bo Lei ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bioactive Glass ◽  
Bone Tissue ◽  
Tissue Regeneration ◽  
Silica Glass ◽  
Bone Tissue Regeneration ◽  
Biodegradable Poly

A highly bioactive and biodegradable PGS–Silica bioactive glass hybrid elastomer with tailored mechanical properties was developed for bone tissue regeneration application.

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