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Sher A, Khalil AT, Dogan N, Ayaz M, Ahmad K. Valorization and Repurposing of Citrus limetta Fruit Waste for Fabrication of Multifunctional AgNPs and Their Diverse Nanomedicinal Applications. Appl Biochem Biotechnol 2024; 196:2067-2085. [PMID: 37466887 DOI: 10.1007/s12010-023-04646-z] [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] [Accepted: 07/01/2023] [Indexed: 07/20/2023]
Abstract
Herein we propose an ecofriendly process for the biofabrication of AgNPs by applying fruit waste of Citrus limetta. The aqueous extracts from the peels of the fruit were used as green chelating and stabilizing agents. Structural, optical, vibrational, morphological, and magnetic properties were established using UV-Vis (ultraviolet visible spectroscopy), XRD (X-rays diffraction), FTIR (Fourier transformed infrared spectroscopy), EDS (energy dispersive spectroscopy), SEM (scanning electron microscopy), ESR (electron spin resonance), and PPMS (physical property management system), while the thermal properties were established using TGA/DTG (thermal gravimetric analysis/derivative thermogravimetry). XRD pattern revealed intense peaks with single-phase purity, while the Debye-Scherrer approximation revealed an average crystallite size of 33.18 nm. The W-H plot revealed the size of 55.2 nm and strain 2.68 × 10-4. FTIR spectra revealed the involvement of different functional groups and major IR vibrations were observed at 2329 cm-1, 2092 cm-1, 1794 cm-1, 1268 cm-1, and 754 cm-1. TGA/DTG revealed major weight loss events at 240 °C and 360 °C. SEM revealed spherical or quasi-spherical morphology, while EDS confirmed the presence of elemental silver. The M-H behavior for all measurement temperature shows diamagnetic behavior. Electron spin resonance (ESR) revealed a high proportion of free electrons. Furthermore, the pharmacognostic and nanomedicinal potential CL-AgNPs was established using multiple in vitro and in vivo bioassays. The in vivo wound healing assays in mice revealed excellent healing potential which were similar to positive control. The percent wound healing is reported to be 93% on the 14th day of incision after application of CL-AgNPs. Bioassays were performed to assess enzyme inhibition potential of the CL-AgNPs for Alzheimer disease and antidiabetic applications. The AChE and BChE potential of the CL-AgNPs was highest at 1000 µg mL-1, i.e., 92% and 56%, respectively. The α-glucosidase inhibition potential for the CL-AgNPs was higher as compared to the α-glucosidase, while the DPPH free radical scavenging was reported to be 70% to 11% at varying concentrations between 1000 and 62.5 µg mL-1. Overall, our results indicate that the waste fruit peels can be a sustainable and eco-friendly resource of synthesis of the multifunctional nanoparticles.
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Affiliation(s)
- Ali Sher
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, KP, Pakistan
| | - Ali Talha Khalil
- Department of Pathology, Lady Reading Hospital Medical Teaching Institution, Peshawar, KP, Pakistan.
| | - Nurcan Dogan
- Department of Physics, Gebze Technical University, Gebze, Turkey
- Department of Electronics and communication Engineering Department, Istanbul Technical University, Istanbul, Turkey
| | - Muhammad Ayaz
- Department of Pharmacy, University of Malakand, Chakdara, KP, Pakistan
| | - Kafeel Ahmad
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, KP, Pakistan
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Srivastava R, Chaudhary H, Kumar A, de Souza FM, Mishra SR, Perez F, Gupta RK. Optimum iron-pyrophosphate electronic coupling to improve electrochemical water splitting and charge storage. DISCOVER NANO 2023; 18:148. [PMID: 38047966 PMCID: PMC10695914 DOI: 10.1186/s11671-023-03937-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/02/2023] [Indexed: 12/05/2023]
Abstract
Tuning the electronic properties of transition metals using pyrophosphate (P2O7) ligand moieties can be a promising approach to improving the electrochemical performance of water electrolyzers and supercapacitors, although such a material's configuration is rarely exposed. Herein, we grow NiP2O7, CoP2O7, and FeP2O7 nanoparticles on conductive Ni-foam using a hydrothermal procedure. The results indicated that, among all the prepared samples, FeP2O7 exhibited outstanding oxygen evolution reaction and hydrogen evolution reaction with the least overpotential of 220 and 241 mV to draw a current density of 10 mA/cm2. Theoretical studies indicate that the optimal electronic coupling of the Fe site with pyrophosphate enhances the overall electronic properties of FeP2O7, thereby enhancing its electrochemical performance in water splitting. Further investigation of these materials found that NiP2O7 had the highest specific capacitance and remarkable cycle stability due to its high crystallinity as compared to FeP2O7, having a higher percentage composition of Ni on the Ni-foam, which allows more Ni to convert into its oxidation states and come back to its original oxidation state during supercapacitor testing. This work shows how to use pyrophosphate moieties to fabricate non-noble metal-based electrode materials to achieve good performance in electrocatalytic splitting water and supercapacitors.
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Affiliation(s)
- Rishabh Srivastava
- Department of Physics, Pittsburg State University, Pittsburg, KS, 66762, USA
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Himanshu Chaudhary
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Anuj Kumar
- Nano-Technology Research Laboratory, Department of Chemistry, GLA University, Mathura, Uttar Pradesh, 281406, India.
| | - Felipe M de Souza
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Sanjay R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN, 38152, USA
| | - Felio Perez
- Integrated Microscopy Center, The University of Memphis, Memphis, TN, 38152, USA
| | - Ram K Gupta
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA.
- Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USA.
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Ojha GP, Kang GW, Kuk YS, Hwang YE, Kwon OH, Pant B, Acharya J, Park YW, Park M. Silicon Carbide Nanostructures as Potential Carbide Material for Electrochemical Supercapacitors: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:150. [PMID: 36616060 PMCID: PMC9824291 DOI: 10.3390/nano13010150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/18/2022] [Accepted: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Silicon carbide (SiC) is a very promising carbide material with various applications such as electrochemical supercapacitors, photocatalysis, microwave absorption, field-effect transistors, and sensors. Due to its enticing advantages of high thermal stability, outstanding chemical stability, high thermal conductivity, and excellent mechanical behavior, it is used as a potential candidate in various fields such as supercapacitors, water-splitting, photocatalysis, biomedical, sensors, and so on. This review mainly describes the various synthesis techniques of nanostructured SiC (0D, 1D, 2D, and 3D) and its properties. Thereafter, the ongoing research trends in electrochemical supercapacitor electrodes are fully excavated. Finally, the outlook of future research directions, key obstacles, and possible solutions are emphasized.
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Affiliation(s)
- Gunendra Prasad Ojha
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Chonbuk 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea
| | - Gun Woong Kang
- Research and Development Division, Korea Institute of Convergence Textile, Iksan, Chonbuk 54588, Republic of Korea
| | - Yun-Su Kuk
- Convergence Research Division, Korea Carbon Industry Promotion Agency (KCARBON), Jeonju, Chonbuk 54853, Republic of Korea
| | - Ye Eun Hwang
- Research and Development Division, Korea Institute of Convergence Textile, Iksan, Chonbuk 54588, Republic of Korea
| | - Oh Hoon Kwon
- Research and Development Division, Korea Institute of Convergence Textile, Iksan, Chonbuk 54588, Republic of Korea
| | - Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Chonbuk 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea
| | - Jiwan Acharya
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Chonbuk 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea
| | - Yong Wan Park
- Research and Development Division, Korea Institute of Convergence Textile, Iksan, Chonbuk 54588, Republic of Korea
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Chonbuk 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea
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