Electrically conducting PEDOT:PSS - gellan gum hydrogels
نویسندگان
چکیده
Hydrogels consisting of the conducting polymer PEDOT:PSS and the biopolymer gellan gum (GG) were characterized using electrical, mechanical and rheological methods. Compression testing and rheological analysis showed that the gels weakened with increasing PEDOT:PSS content. In contrast, the increasing PEDOT:PSS content resulted in an increasing electrical conductivity. Disciplines Medicine and Health Sciences | Social and Behavioral Sciences Publication Details Warren, H. & in het Panhuis, M. (2013). Electrically conducting PEDOT:PSS gellan gum hydrogels. MRS Online Proceedings: MRS Spring Meeting Symposium LL/MM/NN/QQ Advanced Materials for Biological and Biomedical (pp. 1-5). United States: Cambridge University Press. This conference paper is available at Research Online: http://ro.uow.edu.au/smhpapers/1624 Electrically Conducting PEDOT:PSS – Gellan Gum Hydrogels Holly Warren, Marc in het Panhuis Soft Materials Group, School of Chemistry, University of Wollongong, Wollongong NSW 2522, Australia. 2 Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Wollongong, NSW, 2522, Australia.
منابع مشابه
Controlling the rheology of gellan gum hydrogels in cell culture conditions.
Successful culturing of tissues within polysaccharide hydrogels is reliant upon specific mechanical properties. Namely, the stiffness and elasticity of the gel have been shown to have a profound effect on cell behaviour in 3D cell cultures and correctly tuning these mechanical properties is critical to the success of culture. The usual way of tuning mechanical properties of a hydrogel to suit t...
متن کاملEnhanced gelation properties of purified gellan gum.
Gellan gum is a hydrogel-forming polysaccharide when combined with monovalent or divalent cations such as sodium, magnesium, potassium or calcium. Commercially, gellan gums are sold with trace amounts of these cations, which have been proven to affect the gelation and mechanical properties of the resultant hydrogels. A new method based on impedance analysis for determining the gel transition te...
متن کاملGellan gum doped polypyrrole neural prosthetic electrode coatings
Surface modification of neural prosthetic electrodes with polymeric materials, in particular, conducting polymers and hydrogels, has the potential to circumvent many problems associated with currently used electrode platforms. These problems include the disparity in mechanical properties between implanted electrodes and host neural tissue and the lack of biofunctionality at the electrode surfac...
متن کاملYield stress determines bioprintability of hydrogels based on gelatin-methacryloyl and gellan gum for cartilage bioprinting.
Bioprinting of chondrocyte-laden hydrogels facilitates the fabrication of constructs with controlled organization and shape e.g. for articular cartilage implants. Gelatin-methacryloyl (gelMA) supplemented with gellan gum is a promising bio-ink. However, the rheological properties governing the printing process, and the influence of gellan gum on the mechanical properties and chondrogenesis of t...
متن کاملInjectable gellan gum hydrogels with autologous cells for the treatment of rabbit articular cartilage defects.
In this work, the ability of gellan gum hydrogels coupled with autologous cells to regenerate rabbit full-thickness articular cartilage defects was tested. Five study groups were defined: (a) gellan gum with encapsulated chondrogenic predifferentiated rabbit adipose stem cells (ASC + GF); (b) gellan gum with encapsulated nonchondrogenic predifferentiated rabbit adipose stem cells (ASC); (c) gel...
متن کامل