Controlled Remodeling of Hydrogel Networks and Subsequent Crosslinking: A Strategy for Preparation of Alginate Hydrogels with Ultrahigh Density and Enhanced Mechanical Properties

2015 ◽  
Vol 216 (8) ◽  
pp. 914-921 ◽  
Author(s):  
Bom Yi Shin ◽  
Jaeyun Kim
Keyword(s):  
Mechanical Properties ◽  
Alginate Hydrogels ◽  
Ultrahigh Density

scholarly journals Influence of Rhamnolipids and Ionic Cross-Linking Conditions on the Mechanical Properties of Alginate Hydrogels as a Model Bacterial Biofilm

2021 ◽  
Vol 22 (13) ◽  
pp. 6840
Author(s):  
Natalia Czaplicka ◽  
Szymon Mania ◽  
Donata Konopacka-Łyskawa
Keyword(s):  
Mechanical Properties ◽  
Pure Water ◽  
Testing Machine ◽  
Bacterial Biofilm ◽  
Ion Trapping ◽  
Cross Linking ◽  
Box Behnken Design ◽  
Compression Load ◽  
Alginate Hydrogels ◽  
Biofilm Structure

The literature indicates the existence of a relationship between rhamnolipids and bacterial biofilm, as well as the ability of selected bacteria to produce rhamnolipids and alginate. However, the influence of biosurfactant molecules on the mechanical properties of biofilms are still not fully understood. The aim of this research is to determine the effect of rhamnolipids concentration, CaCl2 concentration, and ionic cross-linking time on the mechanical properties of alginate hydrogels using a Box–Behnken design. The mechanical properties of cross-linked alginate hydrogels were characterized using a universal testing machine. It was assumed that the addition of rhamnolipids mainly affects the compression load, and the value of this parameter is lower for hydrogels produced with biosurfactant concentration below CMC than for hydrogels obtained in pure water. In contrast, the addition of rhamnolipids in an amount exceeding CMC causes an increase in compression load. In bacterial biofilms, the presence of rhamnolipid molecules does not exceed the CMC value, which may confirm the influence of this biosurfactant on the formation of the biofilm structure. Moreover, rhamnolipids interact with the hydrophobic part of the alginate copolymer chains, and then the hydrophilic groups of adsorbed biosurfactant molecules create additional calcium ion trapping sites.

scholarly journals Mechanical properties of alginate hydrogels manufactured using external gelation

2014 ◽  
Vol 36 ◽  
pp. 135-142 ◽  
Author(s):  
Georgia Kaklamani ◽  
David Cheneler ◽  
Liam M. Grover ◽  
Michael J. Adams ◽  
James Bowen
Keyword(s):  
Mechanical Properties ◽  
External Gelation ◽  
Alginate Hydrogels

scholarly journals 3D printed agar/ calcium alginate hydrogels with high shape fidelity and tailorable mechanical properties

Polymer ◽  
2020 ◽  
pp. 123238
Author(s):  
Jilong Wang ◽  
Yan Liu ◽  
Xintian Zhang ◽  
Syed Ehsanur Rahman ◽  
Siheng Su ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Alginate ◽  
Alginate Hydrogels ◽  
3D Printed

scholarly journals Terminal sterilization of alginate hydrogels: Efficacy and impact on mechanical properties

2013 ◽  
Vol 102 (4) ◽  
pp. 877-884 ◽  
Author(s):  
Whitney L. Stoppel ◽  
Joseph C. White ◽  
Sarena D. Horava ◽  
Anna C. Henry ◽  
Susan C. Roberts ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Alginate Hydrogels

Surfactant and metal ion effects on the mechanical properties of alginate hydrogels

2016 ◽  
Vol 92 ◽  
pp. 220-224 ◽  
Author(s):  
Hakan Kaygusuz ◽  
Gülşen Akın Evingür ◽  
Önder Pekcan ◽  
Regine von Klitzing ◽  
F. Bedia Erim
Keyword(s):  
Mechanical Properties ◽  
Metal Ion ◽  
Alginate Hydrogels ◽  
Ion Effects ◽  
Metal Ion Effects

scholarly journals Swelling and Mechanical Properties of Alginate Hydrogels with Respect to Promotion of Neural Growth

2014 ◽  
Vol 20 (5) ◽  
pp. 401-411 ◽  
Author(s):  
Marina Matyash ◽  
Florian Despang ◽  
Chrysanthy Ikonomidou ◽  
Michael Gelinsky
Keyword(s):  
Mechanical Properties ◽  
Alginate Hydrogels ◽  
Neural Growth

Incorporation of Fmoc-Y nanofibers into Ca-alginate hydrogels for improving their mechanical properties and the controlled release of small molecules

2018 ◽  
Vol 42 (12) ◽  
pp. 9651-9657 ◽  
Author(s):  
Jiahui Chen ◽  
Na Tao ◽  
Shiqi Fang ◽  
Zewen Chen ◽  
Li Liang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Controlled Release ◽  
Small Molecules ◽  
Calcium Alginate ◽  
Interpenetrating Network ◽  
Alginate Hydrogels ◽  
Ca Alginate

A robust interpenetrating network (IPN) hydrogel was assembled from calcium alginate and Fmoc-tyrosine for the controlled release of small molecules.

Photocrosslinked alginate hydrogels with tunable biodegradation rates and mechanical properties

Biomaterials ◽  
2009 ◽  
Vol 30 (14) ◽  
pp. 2724-2734 ◽  
Author(s):  
Oju Jeon ◽  
Kamal H. Bouhadir ◽  
Joseph M. Mansour ◽  
Eben Alsberg
Keyword(s):  
Mechanical Properties ◽  
Alginate Hydrogels

Bioinspired, Calcium-Free Alginate Hydrogels with Tunable Physical and Mechanical Properties and Improved Biocompatibility

2013 ◽  
Vol 14 (6) ◽  
pp. 2004-2013 ◽  
Author(s):  
Changhyun Lee ◽  
Jisoo Shin ◽  
Jung Seung Lee ◽  
Eunkyoung Byun ◽  
Ji Hyun Ryu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Alginate Hydrogels
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