PMID- 28415497 OWN - NLM STAT- MEDLINE DCOM- 20170731 LR - 20181202 IS - 1873-0191 (Electronic) IS - 0928-4931 (Linking) VI - 75 DP - 2017 Jun 1 TI - Modeling and optimization of gelatin-chitosan micro-carriers preparation for soft tissue engineering: Using Response Surface Methodology. PG - 545-553 LID - S0928-4931(17)30702-6 [pii] LID - 10.1016/j.msec.2017.02.108 [doi] AB - Electrospray ionization is a wide spread technique for producing polymeric microcarriers (MCs) by applying electrostatic force and ionic cross-linker, simultaneously. In this study, fabrication process of gelatin-chitosan MCs and its optimization using the Response Surface Methodology (RSM) is reported. Gelatin/chitosan (G/C) blend ratio, applied voltage and feeding flow rate, their individual and interaction effects on the diameter and mechanical strength of the MCs were investigated. The obtained models for diameter and mechanical strength of MCs have a quadratic relationship with G/C blend ratio, applied voltage and feeding flow rate. Using the desirability curve, optimized G/C blend ratios that are introduced, include the desirable quantities for MCs diameter and mechanical strength. MCs of the same desirable diameter (350mum) and different G/C blend ratio (1, 2, and 3) were fabricated and their elasticity was investigated via Atomic Force Microscopy (AFM). The biocompatibility of the MCs was evaluated using MTT assay. The results showed that human Umbilical Cord Mesenchymal Stem Cells (hUCMSCs) could attach and proliferate on fabricated MCs during 7days of culturing especially on those prepared with G/C blend ratios of 1 and 2. Such gelatin-chitosan MCs may be considered as a promising candidate for injectable tissue engineering scaffolds, supporting attachment and proliferation of hUCMSCs. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Radaei, Payam AU - Radaei P AD - Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11365-8639, Iran. FAU - Mashayekhan, Shohreh AU - Mashayekhan S AD - Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11365-8639, Iran. Electronic address: mashayekhan@sharif.edu. FAU - Vakilian, Saeid AU - Vakilian S AD - Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11365-8639, Iran; Stem Cell Technology Research Center, Tehran 1997775555, Iran. LA - eng PT - Journal Article DEP - 20170224 PL - Netherlands TA - Mater Sci Eng C Mater Biol Appl JT - Materials science & engineering. C, Materials for biological applications JID - 101484109 RN - 9000-70-8 (Gelatin) RN - 9012-76-4 (Chitosan) SB - IM MH - Cell Culture Techniques MH - Cells, Cultured MH - Chitosan/*chemistry MH - Gelatin/*chemistry MH - Humans MH - Mesenchymal Stem Cells/cytology/*metabolism MH - Tissue Engineering/*methods MH - Tissue Scaffolds/*chemistry OTO - NOTNLM OT - Chitosan OT - Gelatin OT - Human umbilical cord mesenchymal stem cells OT - Micro-carrier OT - Response surface methodology OT - Tissue engineering EDAT- 2017/04/19 06:00 MHDA- 2017/08/02 06:00 CRDT- 2017/04/19 06:00 PHST- 2016/07/09 00:00 [received] PHST- 2016/12/05 00:00 [revised] PHST- 2017/02/21 00:00 [accepted] PHST- 2017/04/19 06:00 [entrez] PHST- 2017/04/19 06:00 [pubmed] PHST- 2017/08/02 06:00 [medline] AID - S0928-4931(17)30702-6 [pii] AID - 10.1016/j.msec.2017.02.108 [doi] PST - ppublish SO - Mater Sci Eng C Mater Biol Appl. 2017 Jun 1;75:545-553. doi: 10.1016/j.msec.2017.02.108. Epub 2017 Feb 24.