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Valencia-Llano CH, Castro JI, Saavedra M, Zapata PA, Navia-Porras DP, Flórez-López E, Caicedo C, Calambas HL, Grande-Tovar CD. Histological Evaluation of Cassava Starch/Chicken Gelatin Membranes. Polymers (Basel) 2022; 14:polym14183849. [PMID: 36145994 PMCID: PMC9506157 DOI: 10.3390/polym14183849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/06/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
The use of biopolymers for tissue engineering has recently gained attention due to the need for safer and highly compatible materials. Starch is one of the most used biopolymers for membrane preparation. However, incorporating other polymers into starch membranes introduces improvements, such as better thermal and mechanical resistance and increased water affinity, as we reported in our previous work. There are few reports in the literature on the biocompatibility of starch/chicken gelatin composites. We assessed the in vivo biocompatibility of the five composites (T1–T5) cassava starch/gelatin membranes with subdermal implantations in biomodels at 30, 60, and 90 days. The FT-IR spectroscopy analysis demonstrated the main functional groups for starch and chicken gelatin. At the same time, the thermal study exhibited an increase in thermal resistance for T3 and T4, with a remaining mass (~15 wt.%) at 800 °C. The microstructure analysis for the T2–T4 demonstrated evident roughness changes with porosity presence due to starch and gelatin mixture. The decrease in the starch content in the composites also decreased the gelatinization heats for T3 and T4 (195.67, 196.40 J/g, respectively). Finally, the implantation results demonstrated that the formulations exhibited differences in the degradation and resorption capacities according to the starch content, which is easily degraded by amylases. However, the histological results showed that the samples demonstrated almost complete reabsorption without a severe immune response, indicating a high in vivo biocompatibility. These results show that the cassava starch/chicken gelatin composites are promising membrane materials for tissue engineering applications.
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Affiliation(s)
- Carlos Humberto Valencia-Llano
- Research Group in Biomateriales Dentales, School of Odontología, Faculty of Health, Campus San Fernando, Universidad del Valle, Calle 4B # 36-00, Cali 76001, Colombia
| | - Jorge Iván Castro
- Research Group SIMERQO, Department of Chemistry, Faculty of Natural and Exact Sciences, Campus Melendez, Universidad del Valle, Calle 13 No. 100-00, Santiago de Cali 76001, Colombia
| | - Marcela Saavedra
- Research Group of Polímeros, Department of Chemistry, Faculty de Chemistry and Biology, Universidad de Santiago de Chile, USACH, Santiago 9170020, Chile
| | - Paula A. Zapata
- Research Group of Polímeros, Department of Chemistry, Faculty de Chemistry and Biology, Universidad de Santiago de Chile, USACH, Santiago 9170020, Chile
| | - Diana Paola Navia-Porras
- Research Group Biotecnología, Faculty of Engineering, Universidad de San Buenaventura Cali, Carrera 122 # 6-65, Santiago de Cali 76001, Colombia
| | - Edwin Flórez-López
- Research Group in Química y Biotecnología QUIBIO, Universidad Santiago de Cali, Calle 5 No 62-00, Cali 760035, Colombia
| | - Carolina Caicedo
- Research Group GIGAE3D, Faculty of Engineering, Unidad Central del Valle del Cauca (UCEVA), Carrera 17ª 48-144, Tuluá 763022, Colombia
| | - Heidy Lorena Calambas
- Research Group in Desarrollo de Materiales y Productos, Centro Nacional de Asistencia Técnica a la Industria (ASTIN), SENA, Cali 760003, Colombia
| | - Carlos David Grande-Tovar
- Research Group of Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia 081008, Colombia
- Correspondence: ; Tel.: +57-5-3599-484
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Yang K, Zhang Z, Liu Y, Li S, Chen D, Li Z. Superhydrophobic tough hierarchical porous thermal insulation composites prepared by in situ formation of silica aerogel in collagen fiber matrix. J Appl Polym Sci 2022. [DOI: 10.1002/app.52806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kaifeng Yang
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Zetian Zhang
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Yang Liu
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Shan Li
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Deyan Chen
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
| | - Zhengjun Li
- National Engineering Research Center of Clean Technology in Leather Industry Sichuan University Chengdu China
- College of Biomass Science and Engineering Sichuan University Chengdu China
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Ji J, Chen G, Liu Z, Li L, Yuan J, Wang P, Xu B, Fan X. Preparation of PEG-modified wool keratin/sodium alginate porous scaffolds with elasticity recovery and good biocompatibility. J Biomed Mater Res B Appl Biomater 2021; 109:1303-1312. [PMID: 33421269 DOI: 10.1002/jbm.b.34791] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 01/21/2023]
Abstract
To improve mechanical properties of keratin (KR) porous scaffolds, we prepared a PEGylated keratin through thiol-ene click reaction. Several porous scaffolds were prepared by blending PEGylated keratin with sodium alginate (SA). The surface morphology, mechanical properties, and porosity of scaffolds were detailed studied at different KR/SA proportions. The results showed the content of SA had an effect on pore formation and mechanical properties. When the mass ratio of KR to SA was 2:1, the stress of yield point of the keratin porous scaffold reached 1.24 MPa, and also showed good deformation recovery ability. The PEGylated keratin porous scaffold had a high porosity and great cytocompatibility. Its' porosity is up to 81.7% and the cell viability is about 117.78%. This allows it to absorb the simulated plasma quickly (9.20 ± 0.37 g/g). In addition, the structural stability and acid-base stability of the keratin porous scaffold were also improved after PEGylation. Overall, the PEGylated keratin porous scaffold will be promising in tissue materials due to its great physical, chemical, and biological properties.
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Affiliation(s)
- Ji Ji
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Guang Chen
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Zitong Liu
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Lili Li
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Jiugang Yuan
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Ping Wang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Bo Xu
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
| | - Xuerong Fan
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, China
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