1
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Shim J, Kim YJ, Bang JH. Surface Pinning of Mn by Oxidation State Control for the Synthesis of Cobalt-Free, Ni-Rich, Core/Shell Structured Cathode Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400518. [PMID: 38747079 DOI: 10.1002/smll.202400518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/04/2024] [Indexed: 08/02/2024]
Abstract
Motivated by the increasing cost, environmental concerns, and limited availability of Co, researchers are actively seeking alternative cathode materials for lithium-ion batteries. A promising strategy involves structure-modified materials, such as a NiMn core/shell system. This design leverages the high energy density of a Ni-rich core while employing an Mn-rich shell to enhance interfacial stability by suppressing unwanted reactions with the electrolyte. This approach offers improved cycling stability and reduced reliance on Co. However, the interdiffusion of Mn ions between the core and shell remains a significant challenge during synthesis. This work presents a facile approach to address the issue of Mn interdiffusion in core/shell cathode materials. The study demonstrates that partial oxidation of the precursor during the drying stage effectively enhances the Mn oxidation state. This strategy successfully suppresses Mn interdiffusion during subsequent calcination, leading to the preservation of the core/shell architecture in the final cathode material. This optimized structure mitigates interfacial reactions, enhances chemomechanical properties, and reduces crosstalk, a major contributor to rollover failure. This work presents a novel approach for synthesizing high-performance core/shell cathode materials for next-generation lithium-ion batteries.
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Affiliation(s)
- JinHa Shim
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Ye Jin Kim
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do, 15588, Republic of Korea
| | - Jin Ho Bang
- Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University ERICA, Ansan, Gyeonggi-do, 15588, Republic of Korea
- Department of Chemical and Molecular Engineering, Hanyang University ERICA, Ansan, Gyeonggi-do, 15588, Republic of Korea
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2
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Luo R, Li R, Zheng Z, Zhang L, Xie L, Wu C, Wang S, Chai X, Ma NL, Naushad M, Du G, Xu K. Efficient Cr(VI) remediation by electrospun composite porous nanofibers incorporating biomass with metal oxides and metal-organic framework. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 351:124026. [PMID: 38663509 DOI: 10.1016/j.envpol.2024.124026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/16/2024] [Accepted: 04/21/2024] [Indexed: 05/03/2024]
Abstract
To develop a highly efficient adsorbent to remediate and remove hexavalent chromium ions (Cr(VI)) from polluted water, cellulose acetate (CA) and chitosan (CS), along with metal oxides (titanium dioxide (TiO2) and ferroferric oxide (Fe3O4)), and a zirconium-based metal-organic framework (UiO-66) were used to fabricate the composite porous nanofiber membranes through electrospinning. The adsorption performance, influencing factors, adsorption kinetics and isotherms of composite nanofiber membranes were comprehensively investigated. The multi-layer membrane with interpenetrating nanofibers and surface functional groups enhanced the natural physical adsorption and provided potential chemical sites. The thermal stability was improved by introducing TiO2 and UiO-66. CA/CS/UiO-66 exhibited the highest adsorption capacity (118.81 mg g-1) and removal rate (60.76%), which were twice higher than those of the control. The correlation coefficients (R2) of all the composite nanofibers regressed by the Langmuir model were significantly higher than those by the Freundlich model. The pseudo-first-order kinetic curve of CA/CS composite nanofibers showed the highest R2 (0.973), demonstrating that the whole adsorption process involved a combination of strong physical adsorption and weak chemical adsorption by the amino groups of CS. However, the R2 values of the pseudo-second-order kinetic model increased after incorporating TiO2, Fe3O4, and UiO-66 into the CA/CS composite nanofiber membranes since an enhanced chemical reaction with Cr (VI) occured during the adsorption.
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Affiliation(s)
- Ronggang Luo
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Ruiqi Li
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Zhangzhi Zheng
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Lianpeng Zhang
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Linkun Xie
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Chunhua Wu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Siqun Wang
- Center for Renewable Carbon, The University of Tennessee, Knoxville, TN, 37996, USA
| | - Xijuan Chai
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Nyuk Ling Ma
- BIOSES Research Interest Group, Faculty of Science & Marine Environment, University of Malaysia Terengganu, 21030, Malaysia; Center for Global Health Research (CGHR), Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Guanben Du
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China
| | - Kaimeng Xu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, China.
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3
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Zhou M, Zhang X, Quan Y, Tian Y, Chen J, Li L. Visible light-induced photocatalytic and antibacterial adhesion properties of superhydrophilic TiO 2 nanoparticles. Sci Rep 2024; 14:7940. [PMID: 38575777 PMCID: PMC10995203 DOI: 10.1038/s41598-024-58660-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024] Open
Abstract
Bacterial infections triggered by patient or healthcare worker contact with surfaces are a major cause of medically acquired infections. By controlling the kinetics of tetrabutyl titanate hydrolysis and condensation during the sol-gel process, it is possible to regulate the content of Ti3+ and oxygen vacancies (OVs) in TiO2, and adjust the associated visible light-induced photocatalytic performance and anti-bacterial adhesion properties. The results have shown that the Ti3+ content in TiO2 was 9.87% at the calcination temperature of the reaction system was 300 °C and pH was 1.0, corresponding to optimal photocatalytic and hydrophilic properties. The formation of a hydrated layer on the superhydrophilic surface provided resistance to bacterial adhesion, preventing cross-contamination on high-touch surfaces. The excellent photocatalytic self-cleaning performance and anti-bacterial adhesion properties can be attributed to synergistic effects associated with the high specific surface area of TiO2 nanoparticles, the mesoporous structure, and the presence of Ti3+ and OVs. The formation of superhydrophilic self-cleaning surfaces under visible light can serve as the basis for the development of a new class of anti-bacterial adhesion materials.
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Affiliation(s)
- Mingzhu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Xingran Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yuanxia Quan
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yu Tian
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jie Chen
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Li Li
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China.
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4
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Sedky NK, Mahdy NK, Abdel-Kader NM, Abdelhady MMM, Maged M, Allam AL, Alfaifi MY, Shamma SN, Hassan HAFM, Fahmy SA. Facile sonochemically-assisted bioengineering of titanium dioxide nanoparticles and deciphering their potential in treating breast and lung cancers: biological, molecular, and computational-based investigations. RSC Adv 2024; 14:8583-8601. [PMID: 38487521 PMCID: PMC10938292 DOI: 10.1039/d3ra08908h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/07/2024] [Indexed: 03/17/2024] Open
Abstract
Combining sonochemistry with phytochemistry is a modern trend in the biosynthesis of metallic nanoparticles (NPs), which contributes to the sustainability of chemical processes and minimizes hazardous effects. Herein, titanium dioxide (TiO2) NPs were bioengineered using a novel and facile ultrasound-assisted approach utilizing the greenly extracted essential oil of Ocimum basilicum. FTIR and UV-Vis spectrophotometry were used to confirm the formation of TiO2 NPs. The X-ray diffraction (XRD) analysis showed the crystalline nature of TiO2 NPs. TEM analysis revealed the spherical morphology of the NPs with sizes ranging from 5.55 to 13.89 nm. Energy-dispersive X-ray (EDX) confirmed the purity of the greenly synthesized NPs. TiO2 NPs demonstrated outstanding antitumor activity against breast (MCF-7) and lung (A-549) cancer cells with estimated IC50 values of 1.73 and 4.79 μg mL-1. The TiO2 NPs were cytocompatible to normal cells (MCF-10A) with a selectivity index (SI) of 8.77 for breast and 3.17 for lung cancer. Biological assays revealed a promising potential for TiO2 NPs to induce apoptosis and arrest cells at the sub-G1 phase of the cell cycle phase in both cancer cell lines. Molecular investigations showed the ability of TiO2 NPs to increase apoptotic genes' expression (Bak and Bax) and their profound ability to elevate the expression of apoptotic proteins (caspases 3 and 7). Molecular docking demonstrated strong binding interactions for TiO2 NPs with caspase 3 and EGFR-TK targets. In conclusion, the greenly synthesized TiO2 NPs exhibited potent antitumor activity and mitochondrion-based cell death against breast and lung cancer cell lines while maintaining cytocompatibility against normal cells.
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Affiliation(s)
- Nada K Sedky
- Department of Biochemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation R5 New Garden City, New Administrative Capital Cairo 11835 Egypt
| | - Noha Khalil Mahdy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University Kasr El-Aini Street Cairo 11562 Egypt
| | - Nour M Abdel-Kader
- Department of Biochemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation R5 New Garden City, New Administrative Capital Cairo 11835 Egypt
- Department of Biochemistry, Faculty of Science, Ain Shams University Cairo 11566 Egypt
| | - Manal M M Abdelhady
- Clinical Pharmacy Department, Faculty of Pharmacy, Badr University Cairo 11829 Egypt
| | - Mohamad Maged
- Faculty of Biotechnology, Nile University Giza Egypt
| | - Aya L Allam
- School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation New Administrative Capital Egypt
| | - Mohammad Y Alfaifi
- King Khalid University, Faculty of Science, Biology Department Abha 9004 Saudi Arabia
| | - Samir N Shamma
- Institute of Global Health and Human Ecology, School of Sciences & Engineering, The American University in Cairo AUC Avenue, P.O. Box 74 New Cairo 11835 Egypt
| | - Hatem A F M Hassan
- School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation New Administrative Capital Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University 11562 Cairo Egypt
| | - Sherif Ashraf Fahmy
- Department of Chemistry, School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation R5 New Garden City, New Capital Cairo 11835 Egypt +20-1222613344
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5
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Muhammad A, Sajid M, Khan MN, Sheraz M, Khalid A, Ahmad P, Alotibi S, Al-saidi HM, Sobahi N, Alam MM, Althahban S, Saeedi AM, Albargi HB. Optimization of physical and dielectric properties of Co-doped ZnO nanoparticles for low-frequency devices. PLoS One 2023; 18:e0287322. [PMID: 37992124 PMCID: PMC10664877 DOI: 10.1371/journal.pone.0287322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/03/2023] [Indexed: 11/24/2023] Open
Abstract
In this study, zinc-oxide (ZnO) nanoparticles (NPs) doped with cobalt (Co) were synthesized using a simple coprecipitation technique. The concentration of Co was varied to investigate its effect on the structural, morphological, optical, and dielectric properties of the NPs. X-ray diffraction (XRD) analysis confirmed the hexagonal wurtzite structure of both undoped and Co-doped ZnO-NPs. Scanning electron microscopy (SEM) was used to examine the morphology of the synthesized NPs, while energy-dispersive X-ray spectroscopy (EDX) was used to verify their purity. The band gap of the NPs was evaluated using UV-visible spectroscopy, which revealed a decrease in the energy gap as the concentration of Co2+ increased in the ZnO matrix. The dielectric constants and AC conductivity of the NPs were measured using an LCR meter. The dielectric constant of the Co-doped ZnO-NPs continuously increased from 4.0 × 10-9 to 2.25 × 10-8, while the dielectric loss decreased from 4.0 × 10-8 to 1.7 × 10-7 as the Co content increased from 0.01 to 0.07%. The a.c. conductivity also increased with increasing applied frequency. The findings suggest that the synthesized Co-doped ZnO-NPs possess enhanced dielectric properties and reduced energy gap, making them promising candidates for low-frequency devices such as UV photodetectors, optoelectronics, and spintronics applications. The use of a cost-effective and scalable synthesis method, coupled with detailed material characterization, makes this work significant in the field of nanomaterials and device engineering.
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Affiliation(s)
- Adil Muhammad
- Department of Physics, Islamic International University, Islamabad, Pakistan
| | - Muhammad Sajid
- School of Material Science, Beijing Institute of Technology, Beijing, China
| | | | - Muhammed Sheraz
- Department of Physics, Govt: Post Graduate College Mardan, Mardan, Pakistan
| | - Awais Khalid
- Department of Physics, Hazara University Mansehra, Khyber Pakhtunkhwa, Pakistan
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Pervaiz Ahmad
- Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Satam Alotibi
- Department of Physics, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Hamed M. Al-saidi
- Department of Chemistry, University College in Al-Jamoum, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Nebras Sobahi
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md Mottahir Alam
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sultan Althahban
- Department of Mechanical Engineering, Jazan University, Jazan, Saudi Arabia
| | - Ahmad M. Saeedi
- Faculty of Applied Science, Department of Physics, Umm AL-Qura University, Makkah, Saudi Arabia
| | - Hasan B. Albargi
- Faculty of Science and Arts, Department of Physics, Najran University, Najran, Kingdom of Saudi Arabia
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, Kingdom of Saudi Arabia
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6
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Homaeigohar S, Assad MA, Azari AH, Ghorbani F, Rodgers C, Dalby MJ, Zheng K, Xu R, Elbahri M, Boccaccini AR. Biosynthesis of Zinc Oxide Nanoparticles on l-Carnosine Biofunctionalized Polyacrylonitrile Nanofibers; a Biomimetic Wound Healing Material. ACS APPLIED BIO MATERIALS 2023; 6:4290-4303. [PMID: 37721636 PMCID: PMC10583230 DOI: 10.1021/acsabm.3c00499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
Multifunctional biohybrid nanofibers (NFs) that can simultaneously drive various cellular activities and confer antibacterial properties are considered desirable in producing advanced wound healing materials. In this study, a bionanohybrid formulation was processed as a NF wound dressing to stimulate the adhesion and proliferation of fibroblast and endothelial cells that play a major role in wound healing. Polyacrylonitrile (PAN) electrospun NFs were hydrolyzed using NaOH and biofunctionalized with l-carnosine (CAR), a dipeptide which could later biosynthesize zinc oxide (ZnO) nanoparticles (NPs) on the NFs surface. The morphological study verified that ZnO NPs are uniformly distributed on the surface of CAR/PAN NFs. Through EDX and XRD analysis, it was validated that the NPs are composed of ZnO and/or ZnO/Zn(OH)2. The presence of CAR and ZnO NPs brought about a superhydrophilicity effect and notably raised the elastic modulus and tensile strength of Zn-CAR/PAN NFs. While CAR ligands were shown to improve the viability of fibroblast (L929) and endothelial (HUVEC) cells, ZnO NPs lowered the positive impact of CAR, most likely due to their repulsive negative surface charge. A scratch assay verified that CAR/PAN NFs and Zn-CAR/PAN NFs aided HUVEC migration more than PAN NFs. Also, an antibacterial assay implied that CAR/PAN NFs and Zn-CAR/PAN NFs are significantly more effective in inhibiting Staphylococcus aureus (S. aureus) than neat PAN NFs are (1000 and 500%, respectively). Taken together, compared to the neat PAN NFs, CAR/PAN NFs with and without the biosynthesized ZnO NPs can support the cellular activities of relevance for wound healing and inactivate bacteria.
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Affiliation(s)
- Shahin Homaeigohar
- School
of Science and Engineering, University of
Dundee, Dundee DD1 4HN, U.K.
| | - Mhd Adel Assad
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Amir Hossein Azari
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Farnaz Ghorbani
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Chloe Rodgers
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Matthew J. Dalby
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Kai Zheng
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Rongyao Xu
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
- Department
of Oral and Maxillofacial Surgery, Stomatological Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Mady Elbahri
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Aldo. R. Boccaccini
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
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7
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G V, Singh S, Kaul N, Ramamurthy PC, Naik T, Viswanath R, Kumar V, Bhojya Naik HS, A P, H A AK, Singh J, Khan NA. Green synthesis of nickel-doped magnesium ferrite nanoparticles via combustion for facile microwave-assisted optical and photocatalytic applications. ENVIRONMENTAL RESEARCH 2023; 235:116598. [PMID: 37451577 DOI: 10.1016/j.envres.2023.116598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/02/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
NixMg1-xFe2O4(x = 0, 0.2, 0.4, 0.6) nanoparticles were symphonized via combustion with microwave assistance in the presence of Tamarindus indica seeds extract as fuel. Nanoparticles nature, size, morphology, oxidation state, elemental composition, and optical and luminescence properties were analysed using PXRD, FTIR, SEM, EDX, and HRTEM with SAED, XPS, UV-Visible and photoluminescence spectroscopy. PXRD analysis confirms that synthesized nanoparticles are spinel cubic and have a 17-18 nm average crystalline size. Tetrahedral and octahedral sites regarding stretching vibrations were confirmed by FTIR analysis. SEM and HRTEM data it is disclosed that the morphology of synthesized nanoparticles has nano flakes-like structure with sponge-like agglomeration. Elemental compositions of prepared nanoparticles were confirmed through EDX spectroscopy. XPS Spectroscopy confirmed and revealed transition, oxidation states, and elemental composition. The band gap and absorption phenomenon were disclosed using UV-visible spectroscopy, where the band gap declines (2.1, 2, 1.6, 1.8 eV), with increase in nickel NixMg1-xFe2O4(x = 0, 0.2, 0.4, 0.6) doping. Photoluminescence intensity reduces with an incline in nickel doping, was confirmed and disclosed using photoluminescence spectroscopy. Dyes (Methylene blue and Rhodamine B) degradation activity was performed in the presence of NDMF nanoparticles as a photocatalyst, which disclosed that 98.1% of MB dye and 97.9% of RB dye were degraded in 0-120 min. Regarding initial dye concentration and catalyst load, 5 ppm was initiated as the ideal initial concentration for both RB and MB dyes. 50 mg catalyst dosage was found to be most effective for the degradation of MB and RB dyes. In comparison, pH studies revealed that photodegradation efficiency was higher in neutral (MB-98.1%, RB-97.9%) and basic (MB-99.6%, RB-99.3%) conditions than in acidic (MB-61.8%, RB-60.4%) conditions.
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Affiliation(s)
- Vishnu G
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnanasahyadri, Shankaraghatta, 577451, Karnataka, India
| | - Simranjeet Singh
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Noyonika Kaul
- Sharda University, Knowledge Park 3, Greater Noida, 201310, Uttar Pradesh, India
| | - Praveen C Ramamurthy
- Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - Tssk Naik
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, Karnataka, India
| | - R Viswanath
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnanasahyadri, Shankaraghatta, 577451, Karnataka, India
| | - Vijay Kumar
- Central Ayurveda Research Institute, C.C.R.A.S., Govt. of India, Jhansi, Uttar Pradesh, 284003, India
| | - H S Bhojya Naik
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnanasahyadri, Shankaraghatta, 577451, Karnataka, India.
| | - Prathap A
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnanasahyadri, Shankaraghatta, 577451, Karnataka, India
| | - Anil Kumara H A
- Department of P.G. Studies and Research in Chemistry, Sahyadri Science College, Kuvempu University, Shimoga, 577203, Karnataka, India
| | - Joginder Singh
- Department of Microbiology, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Nadeem A Khan
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
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8
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Ghanem LG, Taha MM, Shaheen BS, Allam NK. Unleashing the Full Potential of Electrochromic Heterostructured Nickel-Cobalt Phosphate for Optically Active High-Performance Asymmetric Quasi-Solid-State Supercapacitor Devices. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37773759 DOI: 10.1021/acsami.3c11494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
The rational design of hybrid systems that combine capacitor and battery merits is crucial to enable the fabrication of high energy and power density devices. However, the development of such systems remains a significant barrier to overcome. Herein, we report the design of a Ni-Co phosphate (Ni3-xCox(PO4)2·8H2O) nanoplatelet-based system via a facile coprecipitation method at ambient conditions. The nanoplatelets exhibit multicomponent synergy, exceptional charge storage capabilities, rich redox active sites (ameliorating the redox reaction activity), and high ionic diffusion rate/electron transfer kinetics. The designed Ni3-xCox(PO4)2·8H2O offered a respectable gravimetric specific capacity and marvelous capability rate (966 and 595 C g-1 at 1 and 15 A g-1) over the Ni3(PO4)2·8H2O (327.3 C g-1) and Co3(PO4)2·8H2O (68 C g-1) counterparts. Additionally, the nanoplatelets showed enhanced photoactive storage performance with a 9.7% increase in the recorded photocurrent density. Upon integration of Ni3-xCox(PO4)2·8H2O as a positive pole and commercial activated carbon as a negative pole, the constructed hybrid supercapacitor device with PVA@KOH quasi-gel electrolyte exhibits great energy and power densities of 77.7 Wh kg-1 and 15998.54 W kg-1 with remarkable cycling stability of 6000 charging/discharging cycles and prominent Coulombic efficiency of 100%. Interestingly, two assembled devices are capable of glowing a red LED bulb for nearly 180 s. This research paves the way to design and fabricate electroactive species via a facile approach for boosting the design of a plethora of supercapattery devices.
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Affiliation(s)
- Loujain G Ghanem
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Manar M Taha
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Basamat S Shaheen
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Nageh K Allam
- Energy Materials Laboratory (EML), School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
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9
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Sharif AM, Ashrafuzzaman M, Kalam A, Al-Sehemi AG, Yadav P, Tripathi B, Dubey M, Du G. Green Synthesis of Pristine and Ag-Doped TiO 2 and Investigation of Their Performance as Photoanodes in Dye-Sensitized Solar Cells. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5731. [PMID: 37687423 PMCID: PMC10488965 DOI: 10.3390/ma16175731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 09/10/2023]
Abstract
Dye-sensitized solar cells (DSSCs) have emerged as a potential candidate for third-generation thin film solar energy conversion systems because of their outstanding optoelectronic properties, cost-effectiveness, environmental friendliness, and easy manufacturing process. The electron transport layer is one of the most essential components in DSSCs since it plays a crucial role in the device's greatest performance. Silver ions as a dopant have drawn attention in DSSC device applications because of their stability under ambient conditions, decreased charge recombination, increased efficient charge transfer, and optical, structural, and electrochemical properties. Because of these concepts, herein, we report the synthesis of pristine TiO2 using a novel green modified solvothermal simplistic method. Additionally, the prepared semiconductor nanomaterials, Ag-doped TiO2 with percentages of 1, 2, 3, and 4%, were used as photoanodes to enhance the device's performance. The obtained nanomaterials were characterized using XRD, FTIR, FE-SEM, EDS, and UV-vis techniques. The average crystallite size for pristine TiO2 and Ag-doped TiO2 with percentages of 1, 2, 3, and 4% was found to be 13 nm by using the highest intensity peaks in the XRD spectra. The Ag-doped TiO2 nanomaterials exhibited excellent photovoltaic activity as compared to pristine TiO2. The incorporation of Ag could assist in successful charge transport and minimize the charge recombination process. The DSSCs showed a Jsc of 8.336 mA/cm2, a Voc of 698 mV, and an FF of 0.422 with a power conversion efficiency (PCE) of 2.45% at a Ag concentration of 4% under illumination of 100 mW/cm2 power with N719 dye, indicating an important improvement when compared to 2% Ag-doped (PCE of 0.97%) and pristine TiO2 (PCE of 0.62%).
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Affiliation(s)
- Abdul Mohshen Sharif
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
| | - Md. Ashrafuzzaman
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Abdullah Godran Al-Sehemi
- Department of Chemistry, College of Science, King Khalid University, Abha 61413, Saudi Arabia; (A.M.S.); (M.A.); (A.G.A.-S.)
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Pankaj Yadav
- Department of Solar Energy, School of Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar 382426, India;
| | - Brijesh Tripathi
- Department of Physics, School of Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar 382426, India;
| | - Mrigendra Dubey
- Soft Materials Research Laboratory, Discipline of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Simrol, Indore 453552, India;
| | - Gaohui Du
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi’an 710021, China;
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10
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Jan HA, Osman AI, Al-Fatesh AS, Almutairi G, Surina I, Al-Otaibi RL, Al-Zaqri N, Kumar R, Rooney DW. Biodiesel production from Sisymbrium irio as a potential novel biomass waste feedstock using homemade titania catalyst. Sci Rep 2023; 13:11282. [PMID: 37438448 PMCID: PMC10338498 DOI: 10.1038/s41598-023-38408-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 07/07/2023] [Indexed: 07/14/2023] Open
Abstract
Biomass waste streams are a possible feedstock for a range of eco-friendly products and a crucial alternative energy source for achieving carbon neutrality; therefore, the efficient management of biomass waste has taken on a greater significance in recent years. Due to its well-comparable physic-chemical properties with fossil diesel, biodiesel is a potential substitute for fossil fuel. This study aimed to synthesize biodiesel from the widely available non-edible seed oil of Sisymbrium irio L. (a member of the Brassicaceae family) via a transesterification procedure over a homemade TiO2 catalyst. At 1:16 oil to methanol ratio, 93% biodiesel yield was obtained over 20 mg catalyst at 60 °C and 60 min. The ASTM methods were used to analyze the fuel properties. The quantitative and qualitative analysis was performed by FT-IR, GC-MS, and NMR spectroscopy. GC-MS study confirms 16 different types of fatty acids of methyl esters. FT-IR analysis showed important peaks that confirm the successful occurrence of biodiesel. 1H-NMR and 13C-NMR showed important peaks for converting triglycerides into corresponding FAMEs. The acid value (0.42 mg KOH/mg/kg), flash point (106 °C), and water content (0.034) of biodiesel are below the specified limit of ASTM D6751 whereas kinetic viscosity (3.72 mm2/s), density (0.874 kg/L), cloud point (- 4.3 °C) and pour point (- 9.6 °C) and high heating value (41.62 MJ/kg) fall within the specified range of ASTM D6751 test limit. The Unsaturation degree and oxidative stability of biodiesel are above ASTM D6751 test limit. The physic-chemical properties of the SIB confirm that it is eco-friendly fuel and a competitive source for manufacturing biodiesel on a commercial scale. Furthermore, the SIB is engine friendly and has good fuel efficacy.
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Affiliation(s)
- Hammad Ahmad Jan
- Department of Botany, University of Buner, Swari, 19290, Pakistan
| | - Ahmed I Osman
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK.
| | - Ahmed S Al-Fatesh
- Chemical Engineering Department, College of Engineering, King Saud University, Riyadh, 11421, Saudi Arabia.
| | - Ghzzai Almutairi
- Water and Energy Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyath, Saudi Arabia.
| | - Igor Surina
- Department of Wood, Pulp and Paper, Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37, Bratislava, Slovakia
| | | | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Rawesh Kumar
- Department of Chemistry, Indus University, Ahmedabad, 382115, India
| | - David W Rooney
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland, UK
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11
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Park BW, Kim J, Shin TJ, Kim YS, Kim MG, Seok SI. Stabilization of the Alkylammonium Cations in Halide Perovskite Thin Films by Water-Mediated Proton Transfer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211386. [PMID: 36646632 DOI: 10.1002/adma.202211386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The development of alkylammonium lead trihalide perovskite (ALHP) photovoltaics has grown rapidly over the past decade. However, there are remaining critical challenges, such as proton defects, which can lead to the material instability of ALHPs. Although specific strategies, including the use of halide additives, have significantly reduced the defects, a fundamental understanding of the defect passivation mechanism remains elusive. Herein, an approach and mechanism for minimizing proton defects in ALHP crystals by adding ionized halides to the perovskite precursor solution are reported. This work clarifies that the ionized halides induced proton transfer from H2 O to the alkylammonium cation in the precursor solution, stabilizing the ALHP crystals. The fundamental characteristics of ALHP and its precursors are examined by X-ray diffraction, transmittance electron microscopy, in situ extended X-ray absorption fine structure, Fourier transform NMR spectroscopy, and Fourier transform infrared spectroscopy. The findings from this work will guide the development of highly stable ALHP crystals, enabling efficient and stable optoelectronic ALHP devices.
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Affiliation(s)
- Byung-Wook Park
- Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Jincheol Kim
- New & Renewable Energy Research Centre, Korea Electronics Technology Institute, Seong-Nam, 13509, Republic of Korea
- School of Engineering, Macquarie University Sustainable Energy Research Centre, Macquarie University, Sydney, NSW, 2109, Australia
| | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Yung Sam Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
| | - Min Gyu Kim
- Beamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sang Il Seok
- Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan, 44919, Republic of Korea
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12
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Thi Huong Giang N, Tan Thinh N, Duy Hai N, Tan Loc P, Ngoc Anh Thu T, Hong Phi Loan N, Minh Quang D, Duc Anh L, Nguyen Thien Truong An V, Thanh Phong M, Huu Hieu N. Application of TiO2 nanoparticles with natural chlorophyll as the catalyst for visible light photocatalytic degradation of methyl orange and antibacterial. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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13
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Yuan M, Wu J, Meng Q, Zhang C, Mao X, Huang S, Wang S. The Role of Al 4C 3 Morphology in Tensile Properties of Carbon Fiber Reinforced 2024 Aluminum Alloy during Thermal Exposure. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8828. [PMID: 36556633 PMCID: PMC9781350 DOI: 10.3390/ma15248828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
The aluminum alloy drill pipe suffers long-term high-temperature conditions during ultra-deep well drilling. In this paper, the samples were prepared by vacuum hot pressing, followed by hot extrusion and T6 heat treatment. The mechanical properties of short carbon fiber reinforced 2024 aluminum alloy composites (SCFs/2024 Al) and the microstructure evolution at the interface region thermal exposure at 160 °C for 500 h are discussed. The experimental results showed that the effect of short carbon fiber on 2024 aluminum alloy remained steady throughout the whole process of the heat exposure experiment. The distribution and volume of interface products (Al4C3) changed with the prolonging of heat exposure time, and connected after coarsening. The evolution of the morphology of Al4C3 relieved the stress of the interface between carbon fiber and aluminum alloy matrix and enhanced the mechanical properties of the composite.
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Affiliation(s)
- Mu Yuan
- Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun 130026, China
| | - Jinhao Wu
- College of Mechanical and Electrical Engineering, Jiaxing Nanhu University, Jiaxing 314001, China
| | - Qingnan Meng
- Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun 130026, China
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130026, China
| | - Chi Zhang
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences, Changchun 130026, China
| | - Xinyue Mao
- Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun 130026, China
| | - Shiyin Huang
- Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun 130026, China
| | - Sifan Wang
- Key Lab of Ministry of Natural Resources for Drilling and Exploitation Technology in Complex Conditions, College of Construction Engineering, Jilin University, Changchun 130026, China
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14
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Casillas-Popova SN, Arenas-Alatorre JA, Thangarasu P, Tavizon G, Bernad-Bernad MJ, Gracia-Mora J. Influence of core-shell CoFe2O4-BaTiO3 and CoFe2O4-Bi4Ti3O12 on the magnetic properties. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Elderdery AY, Alhamidi AH, Elkhalifa AME, Althobiti MM, Eltayeb Omer N, Alsugoor MH, Alsuhaymi N, Atebien EM, Hamza SMA, Alzahrani B, Alanazi F, Subbiah SK, Mok PL. Synthesis, Characterization, and Antimicrobial and Antiproliferative Effects of CuO-TiO 2-Chitosan-Escin Nanocomposites on Human Leukemic MOLT4 Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213753. [PMID: 36364538 PMCID: PMC9655830 DOI: 10.3390/nano12213753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/15/2022] [Accepted: 10/19/2022] [Indexed: 05/13/2023]
Abstract
Nanocomposites comprised of CuO-TiO2-chitosan-escin, which has adjustable physicochemical properties, provide a solution for therapeutic selectivity in cancer treatment. By controlling the intrinsic signaling primarily through the mitochondrial signaling pathway, we desired nanocomposites with enhanced anticancer activity by containing CuO-TiO2-chitosan-escin. The metal oxides CuO and TiO2, the natural polymer chitosan, and a phytochemical compound escin were combined to form CuO-TiO2-chitosan-escin nanocomposites. The synthesized nanocomposites were confirmed and characterized using FTIR spectroscopy, TEM, and UV-Vis absorption spectroscopy. A human leukemia cell line (MOLT-4) was used to assess the efficacy and selectivity of nanocomposites. Based on a cytotoxicity study, CuO-TiO2-chitosan-escin nanocomposites had inhibition concentrations (IC50) of 13.68, 8.9, and 7.14 µg/mL against human T lymphoblast cells after 24, 48, and 72 h of incubation, respectively. Compared with untreated MOLT-4 cells, CuO-TiO2-chitosan-escin nanocomposite-treated cells significantly increased (p < 0.05) caspase-3, -8, and -9 and decreased the levels of antioxidant enzymes GR, SOD, and GSH. Furthermore, MDA for lipid peroxidase and ROS levels significantly increased (p < 0.05) in the treated cells than in the untreated cells. Remarkably, CuO-TiO2-chitosan-escin nanocomposite-mediated control of cell cycles were mainly achieved through the activation of caspase-3, -8, and -9.
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Affiliation(s)
- Abozer Y. Elderdery
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 42421, Saudi Arabia
- Health Sciences Research Unit, Jouf University, Sakaka 42421, Saudi Arabia
- Correspondence: (A.Y.E.); (P.L.M.)
| | - Abdulaziz H. Alhamidi
- Clinical Laboratory Sciences Department, College of Applied Medical Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed M. E. Elkhalifa
- Department of Public Health, College of Health Sciences, Saudi Electronic University, Riyadh 13316, Saudi Arabia
| | - Maryam M. Althobiti
- Department of Clinical Laboratory Science, College of Applied Medical Science, King Saud University, Shaqra 15572, Saudi Arabia
| | | | - Mahdi H. Alsugoor
- Department of Emergency Medical Services, Faculty of Health Sciences, AlQunfudah, Umm Al-Qura University, Makkah 21912, Saudi Arabia
| | - Naif Alsuhaymi
- Department of Emergency Medical Services, Faculty of Health Sciences, AlQunfudah, Umm Al-Qura University, Makkah 21912, Saudi Arabia
| | - Entesar M. Atebien
- Department of Clinical Laboratory Science, College of Applied Medical Science, King Saud University, Shaqra 15572, Saudi Arabia
| | - Siddiqa M. A. Hamza
- College of Medicine, Department of Pathology, Umm Alqura University Algunfuda, Mecca 24382, Saudi Arabia
| | - Badr Alzahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 42421, Saudi Arabia
| | - Fehaid Alanazi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences-AlQurayyat, Jouf University, Sakaka 42421, Saudi Arabia
| | - Suresh Kumar Subbiah
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai 600073, India
| | - Pooi Ling Mok
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence: (A.Y.E.); (P.L.M.)
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16
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Manchwari S, Khatter J, Chauhan RP. Modifications in structural, morphological and optical properties of TiO2 nanoparticles: effect of pH. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02437-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Amigun A, Adekola F, Tijani J, Mustapha S. Photocatalytic degradation of malachite green dye using nitrogen/sodium/iron-TiO2 nanocatalysts. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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