Wound Healing Activity of Nanoclay/Spring Water Hydrogels García Villén, Fátima Sánchez Espejo, Rita María Borrego Sánchez, Ana María Cerezo González, María Pilar Viseras Iborra, César Antonio Sepiolite Palygorskite Spring water Hydrogel Fibroblasts Biocompatibility Wound healing This project was supported by an FPU grant (MECD), the Spanish research group CTS-946 and the program for international mobility of PhD students (University of Granada). Special thanks to the Department of Drug Sciences of the University of Pavia (Italy). Background: hydrogels prepared with natural inorganic excipients and spring waters are commonly used in medical hydrology. Design of these clay-based formulations continues to be a field scarcely addressed. Safety and wound healing properties of different fibrous nanoclay/spring water hydrogels were addressed. Methods: in vitro biocompatibility, by means of MTT assay, and wound healing properties were studied. Confocal Laser Scanning Microscopy was used to study the morphology of fibroblasts during the wound healing process. Results: all the ingredients demonstrated to be biocompatible towards fibroblasts. Particularly, the formulation of nanoclays as hydrogels improved biocompatibility with respect to powder samples at the same concentration. Spring waters and hydrogels were even able to promote in vitro fibroblasts motility and, therefore, accelerate wound healing with respect to the control. Conclusion: fibrous nanoclay/spring water hydrogels proved to be skin-biocompatible and to possess a high potential as wound healing formulations. Moreover, these results open new prospects for these ingredients to be used in new therapeutic or cosmetic formulations. 2020-07-22T11:44:58Z 2020-07-22T11:44:58Z 2020-05 journal article García-Villén, F., Faccendini, A., Miele, D., Ruggeri, M., Sánchez-Espejo, R., Borrego-Sánchez, A., ... & Sandri, G. (2020). Wound Healing Activity of Nanoclay/Spring Water Hydrogels. Pharmaceutics, 12(5), 467. [DOI: 10.3390/pharmaceutics12050467] http://hdl.handle.net/10481/63103 10.3390/pharmaceutics12050467 eng http://creativecommons.org/licenses/by/3.0/es/ open access Atribución 3.0 España MDPI