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Knapczyk-Korczak J, Szewczyk PK, Berniak K, Marzec MM, Frąc M, Pichór W, Stachewicz U. Flexible and Thermally Insulating Porous Materials Utilizing Hollow Double-Shell Polymer Fibers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404154. [PMID: 38925613 DOI: 10.1002/advs.202404154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/02/2024] [Indexed: 06/28/2024]
Abstract
The global climate change is mainly caused by carbon dioxide (CO2) emissions. To help reduce CO2 emissions and conserve thermal energy, sustainable materials based on flexible thermal insulation are developed to minimize heat flux, drawing inspiration from natural systems such as polar bear hairs. The unique structure of hollow double-shell fibers makes it possible to achieve low thermal conductivity in the material while retaining exceptional elasticity, allowing it to adapt to insulation systems of any shape. The layered system of porous mats reaches a thermal conductivity coefficient of 0.031 W∙m⁻¹∙K⁻¹ and enables to reduce the heat transfer. The results achieved using scanning thermal microscopy (SThM) correlate with the simulated heat flow in the case of individual fibers. This research study brings new insights into the energy efficiency of domestic environments, thereby addressing the growing demand for sustainable and high-performance insulation materials for saving energy loss and reducing pollution footprint.
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Affiliation(s)
- Joanna Knapczyk-Korczak
- 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
| | - Krzysztof Berniak
- 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
| | - Maksymilian Frąc
- Faculty of Materials Science and Ceramics, AGH University of Krakow, al. A. Mickiewicza 30, Kraków, 30-059, Poland
| | - Waldemar Pichór
- Faculty of Materials Science and Ceramics, 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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Application of Response Surface Methodology for Optimization of Nanosized Zinc Oxide Synthesis Conditions by Electrospinning Technique. NANOMATERIALS 2022; 12:nano12101733. [PMID: 35630955 PMCID: PMC9144791 DOI: 10.3390/nano12101733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022]
Abstract
Zinc oxide (ZnO) is a well-known semiconductor material due to its excellent electrical, mechanical, and unique optical properties. ZnO nanoparticles are widely used for the industrial-scale manufacture of microelectronic and optoelectronic devices, including metal oxide semiconductor (MOS) gas sensors, light-emitting diodes, transistors, capacitors, and solar cells. This study proposes optimization of synthesis parameters of nanosized ZnO by the electrospinning technique. A Box–Behnken design (BB) has been applied using response surface methodology (RSM) to optimize the selected electrospinning and sintering conditions. The effects of the applied voltage, tip-to-collector distance, and annealing temperature on the size of ZnO particles were successfully investigated. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images confirm the formation of polyvinylpyrrolidone-zinc acetate (PVP-ZnAc) fibers and nanostructured ZnO after annealing. X-ray diffraction (XRD) patterns indicate a pure phase of the hexagonal structure of ZnO with high crystallinity. Minimal-sized ZnO nanoparticles were synthesized at a constant applied potential of 16 kV, with a distance between collector and nozzle of 12 cm, flow rate of 1 mL/h, and calcination temperature of 600 °C. The results suggest that nanosized ZnO with precise control of size and morphology can be fabricated by varying electrospinning conditions, precursor solution concentration, and sintering temperature.
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Shape-Memory Materials via Electrospinning: A Review. Polymers (Basel) 2022; 14:polym14050995. [PMID: 35267818 PMCID: PMC8914658 DOI: 10.3390/polym14050995] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/16/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
This review aims to point out the importance of the synergic effects of two relevant and appealing polymeric issues: electrospun fibers and shape-memory properties. The attention is focused specifically on the design and processing of electrospun polymeric fibers with shape-memory capabilities and their potential application fields. It is shown that this field needs to be explored more from both scientific and industrial points of view; however, very promising results have been obtained up to now in the biomedical field and also as sensors and actuators and in electronics.
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Costa PRA, Menezes LR, Dias ML, Silva EO. Advances in the use of electrospinning as a promising technique for obtaining nanofibers to guide epithelial wound healing in diabetics—Mini‐review. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Pamela Roberta Alves Costa
- Universidade Federal do Rio de Janeiro (UFRJ) Instituto de Macromoléculas Professora Eloisa Mano (IMA) Ilha do Fundão RJ Brazil
| | - Lívia Rodrigues Menezes
- Universidade Federal do Rio de Janeiro (UFRJ) Instituto de Macromoléculas Professora Eloisa Mano (IMA) Ilha do Fundão RJ Brazil
| | - Marcos Lopes Dias
- Universidade Federal do Rio de Janeiro (UFRJ) Instituto de Macromoléculas Professora Eloisa Mano (IMA) Ilha do Fundão RJ Brazil
| | - Emerson Oliveira Silva
- Universidade Federal do Rio de Janeiro (UFRJ) Instituto de Macromoléculas Professora Eloisa Mano (IMA) Ilha do Fundão RJ Brazil
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Liguori A, Pandini S, Rinoldi C, Zaccheroni N, Pierini F, Focarete ML, Gualandi C. Thermo-active Smart Electrospun Nanofibers. Macromol Rapid Commun 2021; 43:e2100694. [PMID: 34962002 DOI: 10.1002/marc.202100694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/15/2021] [Indexed: 11/10/2022]
Abstract
The recent burst of research on smart materials is a clear evidence of the growing interest of the scientific community, industry, and society in the field. The exploitation of the great potential of stimuli-responsive materials for sensing, actuation, logic, and control applications is favored and supported by new manufacturing technologies, such as electrospinning, that allows to endow smart materials with micro- and nano-structuration, thus opening up additional and unprecedented prospects. In this wide and lively scenario, this article systematically reviews the current advances in the development of thermo-active electrospun fibers and textiles, sorting them, according to their response to the thermal stimulus. Hence, several platforms including thermo-responsive systems, shape memory polymers, thermo-optically responsive systems, phase change materials, thermoelectric materials, and pyroelectric materials, have been described and critically discussed. The difference in active species and outputs of the aforementioned categories has been highlighted, evidencing the transversal nature of temperature stimulus. Moreover, the potential of novel thermo-active materials has been pointed out, revealing how their development could take to utmost interesting achievements. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Anna Liguori
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Stefano Pandini
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Chiara Rinoldi
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Nelsi Zaccheroni
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Filippo Pierini
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Maria Letizia Focarete
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
| | - Chiara Gualandi
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna, 40126, Italy
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Affiliation(s)
- Subrata Mondal
- Department of Mechanical Engineering, National Institute of Technical Teachers’ Training and Research (NITTTR) Kolkata, Kolkata, India
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Patiño Vidal C, López de Dicastillo C, Rodríguez-Mercado F, Guarda A, Galotto MJ, Muñoz-Shugulí C. Electrospinning and cyclodextrin inclusion complexes: An emerging technological combination for developing novel active food packaging materials. Crit Rev Food Sci Nutr 2021; 62:5495-5510. [PMID: 33605809 DOI: 10.1080/10408398.2021.1886038] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review was focused on describing the combination of electrospinning and cyclodextrin inclusion complexes as one of the newest alternatives for the development of food packaging materials with antimicrobial and/or antioxidant properties. The advantages of this technological combination, the routes to design the active materials, the characterization and application of such materials were reviewed. Electrospinning has allowed developing active packaging materials composed by fibrillary structures with a high ratio surface-to-volume. On the other hand, cyclodextrin inclusion complexes have maintained the properties of active compounds when they have been incorporated in packaging materials. Both methods have been recently combined and novel active food packaging materials have been obtained through three different routes. Polymeric solutions containing preformed (route 1) or in-situ formed (route 2) cyclodextrin inclusion complexes have been electrospun to obtain packaging materials. Furthermore, cyclodextrin inclusion complexes solutions have been directly electrospun (route 3) in order to produce those materials. The developed packaging materials have exhibited a high active compound loading with a long lasting release. Therefore, the protection of different foodstuff against microbial growth, oxidation and quality decay as well as the maintenance of their physical and sensory properties have been achieved when those materials were applied as active packaging.
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Affiliation(s)
- Cristian Patiño Vidal
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
| | - Carol López de Dicastillo
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
| | - Francisco Rodríguez-Mercado
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
| | - Abel Guarda
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
| | - María José Galotto
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
| | - Cristina Muñoz-Shugulí
- Packaging Innovation Center (LABEN), University of Santiago of Chile (USACH), Santiago, Chile.,Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago of Chile (USACH), Santiago, Chile.,Faculty of Technology, Department of Food Science and Technology, University of Santiago of Chile (USACH), Santiago, Chile
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