Ultrasonic-assisted fabrication and characterization of PVC-SiO2 nanocomposites having bovine serum albumin as a bio coupling agent |
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| Institution: | 1. GRF-CFUM, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal;2. CEB, Centre for Biological Engineering, LIBRO-Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, Campus of Gualtar, 4700-057 Braga, Portugal;3. CEMUC, Mechanical Engineering Department, University of Coimbra, 3030-788 Coimbra, Portugal;4. Instituto de Ciencia de Materiales de Madrid (ICMM—CSIC), Cantoblanco, 28049 Madrid, Spain;5. Departamento de Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain;1. Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, NP Marg, Matunga, Mumbai 400019, India;2. Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India;3. Division of Structural Biology, National Institute for Research in Reproductive Health (Indian Council of Medical Research), Jehangir Merwanji Street, Parel, Mumbai 400012, India |
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| Abstract: | In this work, SiO2 nanoparticles (NPs) were modified with bovine serum albumin (BSA) under ultrasound irradiations as a green and fast route to achieve their good dispersion. Subsequently, different weight percentages of the modified NPs (3, 6, and 9 wt%) were incorporated in poly(vinyl chloride) (PVC) as the matrix. Thermogravimetric analysis of the SiO2-BSA NPs indicated that 12 wt% of the modifier was loaded on the surface of SiO2 NPs. Encapsulation of the SiO2-BSA resulted in a meaningful improvement in the optical, mechanical and thermal characteristics of the prepared PVC nanocomposites (NCs). X-ray diffraction (XRD) patterns for the PVC/SiO2-BSA NCs showed a crystalline behavior for the NC with 6 wt% of the SiO2-BSA originated from the phosphate buffer on the NPs. Water contact angle of the PVC/SiO2-BSA NCs showed that the hydrophilicity enhanced with increasing of the NPs contents. |
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| Keywords: | Bovine serum albumin Poly(vinyl chloride) Ultrasound irradiations Water contact angle |
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