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Polak M, Ura DP, Berniak K, Szewczyk PK, Marzec MM, Stachewicz U. Interfacial blending in co-axially electrospun polymer core-shell fibers and their interaction with cells via focal adhesion point analysis. Colloids Surf B Biointerfaces 2024; 237:113864. [PMID: 38522283 DOI: 10.1016/j.colsurfb.2024.113864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/08/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Electrospun polymer scaffolds have gained prominence in biomedical applications, including tissue engineering, drug delivery, and wound dressings, due to their customizable properties. As the interplay between cells and materials assumes fundamental significance in biomaterials research, understanding the relationship between fiber properties and cell behaviour is imperative. Nevertheless, altering fiber properties introduces complexity by intertwining mechanical and surface chemistry effects, challenging the differentiation of their individual impacts on cell behaviour. Core-shell fibers present an appealing solution, enabling the control of mechanical properties of scaffolds, flexibility in material and drug selection, efficient encapsulation, strong protection of bioactive drugs against harsh environments, and controlled, prolonged drug release. This study addresses a key challenge in core-shell fiber design related to the blending effect between core and shell polymers. Two types of fibers, PMMA and core-shell PC-PMMA, were electrospun, and thorough analyses confirmed the desired core-shell structure in PC-PMMA fibers. Surface chemistry analysis revealed PC diffusion to the PMMA shell of the core-shell fiber during electrospinning, subsequently prompting an investigation of the fiber's surface potential. Conducting cellular studies on osteoblasts by super-resolution confocal microscopy provided insights into the direct influence of interfacial polymer blending and, consequently, altered fiber surface and mechanical properties on cell focal adhesion points, bridging the gap between material attributes and cell responses in core-shell fibers.
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Affiliation(s)
- Martyna Polak
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland
| | - Daniel P Ura
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland
| | - Krzysztof Berniak
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland
| | - Piotr K Szewczyk
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland
| | - Mateusz M Marzec
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland
| | - Urszula Stachewicz
- Faculty of Metals Engineering and Industrial Computer Science, AGH University of Krakow, Al. A. Mickiewicza 30, Kraków 30-059, Poland.
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Pradeep R, Siva V, Jothi MA, Murugan A, Shameem A, Sanjana S, Hemnath E, G Al-Sehemi A. Structural, surface morphological and dielectric studies of guanidinium salt incorporated poly (ethylene oxide)/poly (vinyl pyrrolidone) solid polymer electrolytes. Heliyon 2024; 10:e23524. [PMID: 38187254 PMCID: PMC10770557 DOI: 10.1016/j.heliyon.2023.e23524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/05/2023] [Accepted: 12/05/2023] [Indexed: 01/09/2024] Open
Abstract
The research article investigates the effect of incorporating the guanidinium carbonate (GuC) salt into the poly vinylpyrrolidone (PVP) and polyethylene oxide (PEO) polymer matrix. Various weight percentages of GuC enriched PVP/PEO solid polymer electrolytes (SPEs) have been prepared by the simplest solution casting process. XRD analysis revealed that the incorporation of the GuC salt led to changes in the crystalline structure of the PVP/PEO. FTIR analysis confirms the presence of guanidinium carbonate in the blended polymeric system. FESEM imaging showed the uniform and smooth surface view of the electrolytes. DSC analysis suggests that the addition of the GuC led to a decrease in the melting temperature and an increase in the crystallisation temperature. The temperature-dependent dielectric analysis showed that the presence of the organic salt led to an increase in the dielectric constant of the polymer blend. Among all the prepared electrolytes, 25 wt.% GuC added polymer electrolyte achieved a higher conductivity of 3.00764 × 10-7 S/cm. Overall, the results of the study suggest that the incorporation of the GuC salt into the PVP/PEO can lead to significant changes in the structural, thermal, and dielectric properties of the blend. These findings have potential implications for the use of PVP/PEO blends in solid state battery applications.
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Affiliation(s)
- R. Pradeep
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - V. Siva
- Department of Physics, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
- Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
| | - M. Anandha Jothi
- Department of Physics, P. S. R. Engineering College, Sivakasi, 626140, Tamil Nadu, India
| | - A. Murugan
- Department of Science and Humanities, Karpagam College of Engineering, Coimbatore, 641 032, Tamil Nadu, India
| | - A. Shameem
- Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
- Department of Science and Humanities, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
| | - S. Sanjana
- Department of Physics, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
- Centre for Energy and Environment, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
| | - E. Hemnath
- Centre of Drug Testing, Faculty of Pharmacy, Karpagam Academy of Higher Education, Coimbatore, 641 021, Tamil Nadu, India
| | - Abdullah G Al-Sehemi
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, 61413, Saudi Arabia
- Department of Chemistry, College of Science, King Khalid University, Abha, 61413, Saudi Arabia
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