RT Journal Article
T1 Revealing importance of particles' surface functionalization on the properties of magnetic alginate hydrogels.
A1 Barczak, Mariusz
A1 Borowski, Piotr
A1 Gila-Vilchez, Cristina
A1 Alaminos, Miguel
A1 Gonzalez-Caballero, Fernando
A1 Lopez-Lopez, Modesto T
K1 Alginate
K1 Biomaterials
K1 Functionalization
K1 Magnetic hydrogels
K1 Magnetic particles
K1 Rheological properties
AB Iron/silica core-shell microparticles (IMPs) were functionalized by different functional groups including amine, glycidoxy, phenyl, and thiocyanate. Many of the IMPs modifications are reported for the first time. The resulting surface chemistry turned out to affect the properties of magnetic alginate hydrogels fabricated from sodium alginate and dispersed IMPs. Differences in magnetorheological properties of the obtained magnetic hydrogels can be at least partially attributed to the interactions between alginate and surface functionalities of IMPs. Density Functional Theory (DFT) calculations were carried out to get detailed insight into those interactions in order to link them with the observed macroscopic properties of the obtained hydrogels. For example, amine groups on the IMPs surface resulted in well-formed hydrogels while the presence of thiocyanate or phenyl groups - in poorly formed ones. This observation can be used for tuning the properties of various carbohydrate-based hydrogels.
PB Elsevier Ltd
YR 2020
FD 2020-07-08
LK http://hdl.handle.net/10668/16135
UL http://hdl.handle.net/10668/16135
LA en
NO Barczak M, Borowski P, Gila-Vilchez C, Alaminos M, González-Caballero F, López-López MT. Revealing importance of particles' surface functionalization on the properties of magnetic alginate hydrogels. Carbohydr Polym. 2020 Nov 1;247:116747.
NO Mariusz Barczak thanks to Polish National Agency for Academic Exchange (NAWA) for supporting the research and his stay at the University of Granada in the frame of the Bekker programme fellowship no PPN/BEK/2018/1/00235/U/00001. This study was supported by project FIS2017-85954-R (Ministerio de Economía, Industria y Competitividad, MINECO, and Agencia Estatal de Investigación, AEI, Spain, cofunded by Fondo Europeo de Desarrollo Regional, FEDER, European Union).
DS RISalud
RD Apr 8, 2025