Work

Synthesis of porous and elastic composites functionalized with gold nanoparticles

Year: 2025

Type: article

Abstract: In this research we aimed to develop highly elastic, functional and porous composites through the polymerization of medium internal phase emulsion (P-MIPE). Polyethylene glycol diacrylate (PEGDA) based hybrid composite functionalized with hyaluronic acid stabilized gold nanoparticles (HA-AuNPs). The composites were named P-MIPE-10 and P-MIPE-20. Micro-CT images showed a good porosity in the range of 67–57 %. The high cross-linking density of the composite materials was confirmed by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR). X-ray diffraction (XRD) indicated that the crystallinity of the materials enhanced with HA-AuNPs and a higher concentration of the nanoparticles improved the stiffness properties of the composites while maintaining the hyperelastic behavior at 50 % strain. All materials exhibited excellent thermal stability and antioxidant properties increased significantly with HA-AuNP. These findings suggest that synthesized composite materials could be suitable for applications in drug delivery, biomedical scaffolds, biosensors, and structural and engineered composite materials. • Hyaluronic acid stabilized AuNPs (HA-AuNPs) were synthesized. • HA-AuNPs enhanced the mechanical stiffness of PEGDA based polyMIPEs. • HA-AuNp-PEGDA composites exhibited excellent antioxidant activity. • Materials exhibited good porosity, elasticity and thermal stability.

Source: Materials Today Communications

DOI: 10.1016/j.mtcomm.2025.114007

Authors: Sweeta Akbari, Vijay Singh Parihar, Markus Hannula, Jari Hyttinen, Minna Kellomäki

Institutions: Tampere University, University of Tampere

Language: English

Topic: Hydrogels: synthesis, properties, applications

Subfield: Molecular Medicine

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: hybrid

Estimated APC paid: $2,830