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Zhao Y, Ran B, Lee D, Liao J. Photo-Controllable Smart Hydrogels for Biomedical Application: A Review. SMALL METHODS 2024; 8:e2301095. [PMID: 37884456 DOI: 10.1002/smtd.202301095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/28/2023] [Indexed: 10/28/2023]
Abstract
Nowadays, smart hydrogels are being widely studied by researchers because of their advantages such as simple preparation, stable performance, response to external stimuli, and easy control of response behavior. Photo-controllable smart hydrogels (PCHs) are a class of responsive hydrogels whose physical and chemical properties can be changed when stimulated by light at specific wavelengths. Since the light source is safe, clean, simple to operate, and easy to control, PCHs have broad application prospects in the biomedical field. Therefore, this review timely summarizes the latest progress in the PCHs field, with an emphasis on the design principles of typical PCHs and their multiple biomedical applications in tissue regeneration, tumor therapy, antibacterial therapy, diseases diagnosis and monitoring, etc. Meanwhile, the challenges and perspectives of widespread practical implementation of PCHs are presented in biomedical applications. This study hopes that PCHs will flourish in the biomedical field and this review will provide useful information for interested researchers.
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Affiliation(s)
- Yiwen Zhao
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Bei Ran
- Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Dashiell Lee
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, P. R. China
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2
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Sava I, Asandulesa M, Barzic AI, Albu RM, Stoica I. Testing the Performance of the Azo-Polyimide Supramolecular Systems as Substrate for Sensors Based on Platinum Electrodes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4980. [PMID: 37512255 PMCID: PMC10383144 DOI: 10.3390/ma16144980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Azo-polyimide films with supramolecular structure were obtained by casting onto glass plates a mixture based on polyamidic acid and different quantities of azochromophore, followed by thermal treatment to realize the final azo-polyimide structure. The dielectric characteristics of the supramolecular structure of polymer films were investigated by broad-band dielectric spectroscopy measurements at different temperatures and frequencies. The free-standing films proved to be flexible and tough and maintained their integrity after repeated bending. The work of adhesion at the polymer/platinum interface was calculated after the evaluation of the surface energy parameters before and after plasma treatment. Atomic force microscopy was used to image the surface morphology, the evolution of the roughness parameters, and the adhesion force between the platinum-covered tip and the polymer surface, registered at the nanoscale with the quantity of the azo dye introduced in the system. The simulation of the columnar growth of a platinum layer was made to provide information about the deposition parameters that should be used for optimal results in the deposition of platinum electrodes for sensors.
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Affiliation(s)
- Ion Sava
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Mihai Asandulesa
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Andreea Irina Barzic
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Raluca Marinica Albu
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
| | - Iuliana Stoica
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania
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3
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Gajardo G, Córdoba A, Forero A, Fuentealba D, Ramírez O, Bonardd S, Toro-Labbé A, Leiva A, Díaz DD, Saldías C. Photoswitching/back-switching assessment of biobased cellulose acetate/azobenzene handleable films under visible-light LED irradiation. Int J Biol Macromol 2023:124883. [PMID: 37201890 DOI: 10.1016/j.ijbiomac.2023.124883] [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: 02/05/2023] [Revised: 05/04/2023] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
The light-induced processes performed by photofunctional polymer films are crucial aspects of developing integrated energy storage devices properly. Herein, we report the preparation, characterization, and study of the optical properties of a series of biobased cellulose acetate/azobenzene (CA/Az1) handleable films at different compositions. The photoswitching/back-switching behavior of the samples was investigated using varied LED irradiation sources. Additionally, poly(ethylene glycol) (PEG) was deposited onto cellulose acetate/azobenzene films to study the back-switching process's effect and nature in the fabricated films. Interestingly, the melting enthalpies of PEG before and after being irradiated with blue LED light were 2.5 mJ and 0.8 mJ, respectively. Conveniently, FTIR and UV-visible spectroscopy, thermogravimetry (TGA), contact angle, differential scanning calorimetry (DSC), polarized light microscopy (PLM), and atomic force microscopy (AFM) were used for the characterization of the sample films. Complementarily, theoretical electronic calculations provided a consistent approach to the energetic change in the dihedral angles and non-covalent interaction for the trans and cis isomer in the presence of cellulose acetate monomer. The results of this study revealed that CA/Az1 films are viable photoactive materials displaying handleability attributes with potential uses in harvesting, converting, and storing light energy.
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Affiliation(s)
- G Gajardo
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Córdoba
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Forero
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - D Fuentealba
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - O Ramírez
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile; Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - S Bonardd
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Toro-Labbé
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - A Leiva
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile
| | - D Díaz Díaz
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avda. Astrofísico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain; Departamento de Química Organica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile; Institut für Organische Chemie, Universitat Regensburg, Universitatsstr. 31, 93053 Regensburg, Germany.
| | - C Saldías
- Departamento de Química Física, Facultad de Química y Farmacia, Pontificia Universidad Católica de Chile, Macul, 7820436 Santiago, Chile.
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Yari MR, Zakerhamidi MS, Ghomi H. Plasma immobilization of azobenzene dye on polyamide 6 polymer. Sci Rep 2023; 13:983. [PMID: 36653399 PMCID: PMC9849228 DOI: 10.1038/s41598-023-27484-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 01/03/2023] [Indexed: 01/19/2023] Open
Abstract
Plasma treatment of polymeric materials is a cost-effective and efficient technique to modify the surface and change the constituent unit configuration. This research investigates the effects of argon DC glow discharge plasma on pure and DR1 dye-loaded polyamide 6 polymer films and stabilization of dye on the surface. Plasma breaks some bonds and activates the surface through creating reactive structures such as free radical sites on the surface and increases tertiary amides on the surface of polymer. Besides, this process alters surface topographical characteristics and conformation of azobenzene dye which are effective on the durability of the dye on the surface. Plasma causes interactions of the dye with the polymer and immobilizes the dye on the polymer. On the other hand, these interactions lead to changes in the dye's optical and geometric isomeric activity and stability. This work studies the chemical and morphological changes of polyamide 6 by plasma with AFM and spectroscopic methods. Furthermore, the aging of nylon 6 films loaded with DR1 dye is measured, and the conformational changes of the dye are investigated. Plasma stabilizes the dye on the polymer surface through making changes of chemical and physical properties on the surface components.
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Affiliation(s)
- Mohammad Reza Yari
- grid.412502.00000 0001 0686 4748Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
| | - Mohammad Sadegh Zakerhamidi
- grid.412831.d0000 0001 1172 3536Faculty of Physics, University of Tabriz, Tabriz, Iran ,grid.412831.d0000 0001 1172 3536Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran ,grid.412831.d0000 0001 1172 3536Photonics Center of Excellence, University of Tabriz, Tabriz, Iran
| | - Hamid Ghomi
- grid.412502.00000 0001 0686 4748Laser and Plasma Research Institute, Shahid Beheshti University, Tehran, Iran
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Al-Dwairi R, Ahmad AA, Aleshawi A, Bani-Salameh A, Aljarrah IA, Al-Bataineh QM, Mohidat H, Al Sharie AH. Optical and Physical Properties of Silicone Oil Extracted from the Vitreous of Patients Who Underwent Vitrectomy for Retinal Detachment. J Ocul Pharmacol Ther 2022; 38:717-727. [PMID: 36318488 DOI: 10.1089/jop.2022.0081] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Purpose: Silicone oil (SO) is a crucial tool in vitreoretinal surgery. SO has the tendency to emulsify depending on certain factors. In this work, detailed analyses have been conducted to understand changes that occurred to the physical, optical, and chemical characteristics of the oil after removal from the vitreous cavity. Methods: Five samples of SO were collected from patients who underwent vitrectomy for rhegmatogenous retinal detachment. The fourier-transform infrared (FTIR) spectroscopy, ultraviolet-visible spectrometer, and contact angle analysis were utilized to determine the changes in its chemical bondings, transmittance, absorbance, viscosity, buoyance, and specific gravity. Results: FTIR analysis showed significant changes in the chemical bonding that might be related to the age of the patient, lens status, the presence of retinal hemorrhages, and the exposure to laser after implantation of SO. In addition, contact angle analysis revealed that the viscosity might be affected by duration of implantation and the age of the patient. Moreover, transmittance and absorbance were largely affected by the exposure to laser retinopexy after implantation. Conclusion: This study showed that certain factors such as the age of the patient, the exposure to laser, lens status, and the presence of retinal hemorrhages may contribute to the emulsification process.
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Affiliation(s)
- Rami Al-Dwairi
- Division of Ophthalmology, Department of Special Surgery, Faculty of Medicine, Jordan University of Science & Technology, Irbid, Jordan
| | - Ahmad A Ahmad
- Thin Films and Nanotechnology Lab., Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Abdelwahab Aleshawi
- Division of Ophthalmology, Department of Special Surgery, Faculty of Medicine, Jordan University of Science & Technology, Irbid, Jordan
| | - Areen Bani-Salameh
- Thin Films and Nanotechnology Lab., Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Ihsan A Aljarrah
- Thin Films and Nanotechnology Lab., Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Qais M Al-Bataineh
- Thin Films and Nanotechnology Lab., Department of Physics, Jordan University of Science & Technology, Irbid, Jordan.,Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany
| | - Hasan Mohidat
- Division of Ophthalmology, Department of Special Surgery, Faculty of Medicine, Jordan University of Science & Technology, Irbid, Jordan
| | - Ahmed H Al Sharie
- Division of Ophthalmology, Department of Special Surgery, Faculty of Medicine, Jordan University of Science & Technology, Irbid, Jordan
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6
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Al‐Bataineh QM, Telfah AD, Ahmad AA, Bani‐Salameh AA, Abu‐Zurayk R, Hergenröder R. E
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Z
reversible photoisomerization of methyl orange doped polyacrylic acid‐based polyelectrolyte brush films. J Appl Polym Sci 2022. [DOI: 10.1002/app.53138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qais M. Al‐Bataineh
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V. Dortmund Germany
- Experimental Physics TU Dortmund University Dortmund Germany
- Department of Physics Jordan University of Science & Technology Irbid Jordan
| | - Ahmad D. Telfah
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V. Dortmund Germany
- Nanotechnology Center The University of Jordan Amman Jordan
| | - Ahmad A. Ahmad
- Department of Physics Jordan University of Science & Technology Irbid Jordan
| | | | - Rund Abu‐Zurayk
- Nanotechnology Center – The University of Jordan Amman Jordan
- Nanotechnology Center The University of Jordan Amman Jordan
| | - Roland Hergenröder
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V. Dortmund Germany
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7
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Al‐Bataineh QM, Telfah A, Ahlmann N, Tolstik E, Tavares CJ, Hergenröder R. Photoisomerization kinetics of a novel photoswitchable film based on methyl red doped with sodium hexachloroplatinate hosted in polyethylene oxide. J Appl Polym Sci 2022. [DOI: 10.1002/app.52387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qais M. Al‐Bataineh
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V Dortmund Germany
- Department of Physics Jordan University of Science & Technology Irbid Jordan
| | - Ahmad Telfah
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V Dortmund Germany
| | - Norman Ahlmann
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V Dortmund Germany
| | - Elen Tolstik
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V Dortmund Germany
| | - Carlos J. Tavares
- Physics Center of Minho and Porto Universities (CF‐UM‐PT) Guimarães Portugal
| | - Roland Hergenröder
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V Dortmund Germany
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8
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Ahmad AA, Al-Bataineh QM, Al-Nawafleh DM, Telfah AD. Photoisomerization Kinetics of Photoswitchable Thin Films Based on Nanostructure/Molecular Layers of AlN-AO7. Photochem Photobiol 2021; 98:831-842. [PMID: 34614230 DOI: 10.1111/php.13535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/03/2021] [Accepted: 09/29/2021] [Indexed: 01/12/2023]
Abstract
The photoisomerization kinetics of photoswitchable thin films based on nanostructure/molecular layers of AlN-AO7 have been studied, investigated and reported. The trans → cis isomerization process occurs by UV-light irradiation. The cis-isomer could be turned back to the trans-isomer by either thermal or optical relaxation. The kinetics and time-evolution of the photoisomerization and reverse isomerization mechanism of AlN-AO7 thin films are investigated by UV-Vis absorbance spectra using relevant models. All phases of AlN-AO7 thin film, initial trans-, cis-, optical trans-, thermal trans-phases, were investigated using UV-Vis absorbance spectra, FTIR spectra, XRD and SEM. Transforming AlN-AO7 thin film from the initial trans-phase into cis-phase leads to curvature in the AO7 leaves and increases in the strain inside the structure. Going back to the trans-phase by either optical or thermal relaxation leads to vanishing the curvature and decreasing the structure's strain. Finally, the energy storage capacity was calculated using DSC and was found to be 36.38 J g-1 , simultaneously realizing the multisource solar energy storage and environmental heat.
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Affiliation(s)
- Ahmad A Ahmad
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Qais M Al-Bataineh
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan.,Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany
| | - Dima M Al-Nawafleh
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Ahmad D Telfah
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany.,Hamdi Mango Center for Scientific Research (HMCSR), the Jordan University, Amman, Jordan
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9
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Ahmad AA, Al-Bataineh QM, Alsaad AM, Al-Nawafleh DM, Al-Nawafleh AM, Telfah AD. Synthesis and Characterization of Thin Films Based on Azobenzene Derivative Anchored to CeO 2 Nanoparticle for Photoswitching Applications. Photochem Photobiol 2021; 98:823-830. [PMID: 34612527 DOI: 10.1111/php.13534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/29/2021] [Indexed: 11/29/2022]
Abstract
Azobenzene has attracted substantial attention as a photoswitchable molecule since its applications range from energy and data storage to biomedical applications. This work reports a new type of thin-film based on azobenzene derivative anchored to cerium oxide nanoparticles CeO2 NPs for photoswitching applications. The trans-cis isomerization and reverse isomerization occur by UV-light exposure and thermal relaxation process, respectively. The photoisomerization and reverse isomerization kinetics for CeO2 NPs-MR thin films are studied, investigated, and analyzed using UV-Vis absorbance spectra, FTIR spectroscopy, XRD, and scanning electron microscopy (SEM), in addition to differential scanning calorimetry (DSC) measurement to study the energy storage capacity. The results found that anchoring azobenzene to CeO2 NPs is successful in multisource storage of solar energy applications.
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Affiliation(s)
- Ahmad A Ahmad
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Qais M Al-Bataineh
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan.,Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany
| | - Ahmad M Alsaad
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Dima M Al-Nawafleh
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Areej M Al-Nawafleh
- Department of Physics, Jordan University of Science & Technology, Irbid, Jordan
| | - Ahmad D Telfah
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Dortmund, Germany.,Hamdi Mango Center for Scientific Research (HMCSR), the Jordan University, Amman, Jordan
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10
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Al-Bataineh QM, Ahmad AA, Alsaad AM, Qattan IA, Aljarrah IA, Telfah AD. Effect of Iodine Filler on Photoisomerization Kinetics of Photo-Switchable Thin Films Based on PEO-BDK-MR. Polymers (Basel) 2021; 13:polym13050841. [PMID: 33803395 PMCID: PMC7967190 DOI: 10.3390/polym13050841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/05/2021] [Accepted: 03/07/2021] [Indexed: 12/12/2022] Open
Abstract
We report the effect of an iodine filler on photoisomerization kinetics of photo-switchable PEO-BDK-MR thin films. The kinetics of photoisomerization and time progression of PEO-BDK-MR/I2 nanocomposite thin films are investigated using UV-Vis, FTIR spectroscopies, and modified mathematical models developed using new analytical methods. Incorporating iodine filler into the PEO-BDK-MR polymeric matrix enhances the isomerization energy barrier and considerably increases the processing time. Our outcomes propose that enhanced photoisomerized and time processed (PEO-BDK-MR)/I2 thin films could be potential candidates for a variety of applications involving molecular solar thermal energy storage media.
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Affiliation(s)
- Qais M. Al-Bataineh
- Department of Physics, Jordan University of Science & Technology, P.O. Box 3030, Irbid 22110, Jordan; (Q.M.A.-B.); (A.A.A.); (I.A.A.)
| | - A. A. Ahmad
- Department of Physics, Jordan University of Science & Technology, P.O. Box 3030, Irbid 22110, Jordan; (Q.M.A.-B.); (A.A.A.); (I.A.A.)
| | - A. M. Alsaad
- Department of Physics, Jordan University of Science & Technology, P.O. Box 3030, Irbid 22110, Jordan; (Q.M.A.-B.); (A.A.A.); (I.A.A.)
- Correspondence:
| | - I. A. Qattan
- Department of Physics, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates;
| | - Ihsan A. Aljarrah
- Department of Physics, Jordan University of Science & Technology, P.O. Box 3030, Irbid 22110, Jordan; (Q.M.A.-B.); (A.A.A.); (I.A.A.)
| | - Ahmad D. Telfah
- Leibniz Institut für Analytische Wissenschaften-ISAS-e.V., Bunsen-Kirchhoff-Straße 11, 44139 Dortmund, Germany;
- Hamdi Mango Center for Scientific Research (HMCSR), The Jordan University, Amman 11942, Jordan
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New Insight on Photoisomerization Kinetics of Photo-Switchable Thin Films Based on Azobenzene/Graphene Hybrid Additives in Polyethylene Oxide. Polymers (Basel) 2020; 12:polym12122954. [PMID: 33322058 PMCID: PMC7763885 DOI: 10.3390/polym12122954] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/28/2022] Open
Abstract
In this work, we reported a new insight on the kinetics of photoisomerization and time evolution of hybrid thin films considering the azo-dye methyl red (MR) incorporated with graphene accommodated in polyethylene oxide (PEO). The kinetics of photoisomerization and time-evolution of hybrid thin films were investigated using UV-Vis s and FTIR spectroscopies, as well as appropriate models developed with new analytical methods. The existence of azo-dye MR in the complex is crucial for the resource action of the trans↔cis cycles through UV-illumination ↔ Visible-illumination relaxations. The results of the UV–Vis and the FTIR investigations prove the cyclical trans ↔ cis-states. Consequently, PEO-(MR-Graphene) hybrid composite thin films can be introduced as possible applicants for photochromic molecular switches, light-gated transistors, and molecular solar thermal energy storage media.
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