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Koparde SV, Nille OS, Kolekar AG, Bote PP, Gaikwad KV, Anbhule PV, Pawar SP, Kolekar GB. Okra peel-derived nitrogen-doped carbon dots: Eco-friendly synthesis and multi-functional applications in heavy metal ion sensing, nitro compound detection and environmental remediation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124659. [PMID: 38943759 DOI: 10.1016/j.saa.2024.124659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/23/2024] [Accepted: 06/11/2024] [Indexed: 07/01/2024]
Abstract
The present study explores the kitchen waste okra peels derived synthesis of nitrogen doped carbon dots (N-CDs) via simple carbonization followed by reflux method. The synthesized N-CDs was characterized using, TEM, XPS, FTIR, XRD, Raman, UV-Visible and Fluorescence Spectroscopy. The N-CDs emits bright blue emission at 420 nm with 12 % of quantum yield as well as it follows excitation dependent emission. Further, the N-CDs were employed as a fluorescence sensor for detection of hazardous metal ions and nitro compounds. Among various metal ions and nitro compounds, the N-CDs shows fluorescence quenching response towards Cr6+, and Mn7+ metal ions as well as 4-nitroaniline (4-NA) and picric acid (PA) with significant hypsochromic and bathochromic shift for Mn7+, 4-NA and PA respectively. The developed fluorescent probe shows relatively low limit of detection (LOD) of 1.46 µg/mL, 1.05 µg/mL, 2.1 µg/mL and 2.2 µg/mL for the above analytes respectively. The N-CDs did not show any significant interference with coexisting ions and successfully applied for real water sample analysis. In addition, circular economy approach was employed for adsorption of dyes by reactivating leftover waste carbon residue which was obtained after reflux. Thus, the kitchen waste valorization and circular economy approach based N-CDs have potential applications in the field of detection of emerging pollutants, and environmental remediation.
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Affiliation(s)
- Sneha V Koparde
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry Shivaji University, Kolhapur-416004, (MS), India; Department of Chemistry, Rajarshi Chhatrapati Shahu College, Kolhapur-416003, (MS), India
| | - Omkar S Nille
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry Shivaji University, Kolhapur-416004, (MS), India
| | - Akanksha G Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry Shivaji University, Kolhapur-416004, (MS), India
| | - Prachi P Bote
- Department of Chemistry, Rajarshi Chhatrapati Shahu College, Kolhapur-416003, (MS), India
| | - Kishor V Gaikwad
- Department of Chemistry, Rajarshi Chhatrapati Shahu College, Kolhapur-416003, (MS), India
| | - Prashant V Anbhule
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry Shivaji University, Kolhapur-416004, (MS), India
| | - Samadhan P Pawar
- Department of Chemistry, Rajarshi Chhatrapati Shahu College, Kolhapur-416003, (MS), India.
| | - Govind B Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry Shivaji University, Kolhapur-416004, (MS), India.
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Li Z, Dong Y, Li X, Li D, Dong J, Wang P, Chen S, Geng H. Detection of sulphur(II) of carbon dots synthesized from Gardenia residue. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:4409-4414. [PMID: 38904209 DOI: 10.1039/d4ay00909f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
The detection of anions using carbon dots (CDs) has received less attention compared to cations. Therefore, the present study aimed to develop a fluorescence sensor based on carbon dots (CDs) capable of detecting S2- in real water samples. The CDs were successfully prepared from the residues of a traditional Chinese herb, Gardenia, which emitted green photoluminescence (PL) under ultraviolet light irradiation. The as-prepared CDs were quasi-spherical in shape and ranged in size from 10 to 30 nm. Different detailed analyses proved that the CDs had good morphology, various functional groups, high water solubility, great optical features, and excellent stability under diverse environmental conditions. The ion detection showed that only Ag+ had the strongest fluorescence quenching effect on the CDs, however, the addition of S2- could recover their fluorescence. Based on these results, an "off-on" fluorescence sensor was achieved to selectively detect the concentration of S2- in real water samples with a limit of detection (LOD) of 39 μM, which further expanded the application of residues from traditional Chinese herbal medicine.
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Affiliation(s)
- Zhaoxia Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China
| | - Yuchuan Dong
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xinyi Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Dongchun Li
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Jia Dong
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Panchen Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Shuwei Chen
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Huiling Geng
- College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, China.
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps, Alar, Xinjiang 843300, China
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Dilenko H, Bartoň Tománková K, Válková L, Hošíková B, Kolaříková M, Malina L, Bajgar R, Kolářová H. Graphene-Based Photodynamic Therapy and Overcoming Cancer Resistance Mechanisms: A Comprehensive Review. Int J Nanomedicine 2024; 19:5637-5680. [PMID: 38882538 PMCID: PMC11179671 DOI: 10.2147/ijn.s461300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 05/09/2024] [Indexed: 06/18/2024] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive therapy that has made significant progress in treating different diseases, including cancer, by utilizing new nanotechnology products such as graphene and its derivatives. Graphene-based materials have large surface area and photothermal effects thereby making them suitable candidates for PDT or photo-active drug carriers. The remarkable photophysical properties of graphene derivates facilitate the efficient generation of reactive oxygen species (ROS) upon light irradiation, which destroys cancer cells. Surface functionalization of graphene and its materials can also enhance their biocompatibility and anticancer activity. The paper delves into the distinct roles played by graphene-based materials in PDT such as photosensitizers (PS) and drug carriers while at the same time considers how these materials could be used to circumvent cancer resistance. This will provide readers with an extensive discussion of various pathways contributing to PDT inefficiency. Consequently, this comprehensive review underscores the vital roles that graphene and its derivatives may play in emerging PDT strategies for cancer treatment and other medical purposes. With a better comprehension of the current state of research and the existing challenges, the integration of graphene-based materials in PDT holds great promise for developing targeted, effective, and personalized cancer treatments.
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Affiliation(s)
- Hanna Dilenko
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Kateřina Bartoň Tománková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lucie Válková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Barbora Hošíková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Markéta Kolaříková
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lukáš Malina
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Robert Bajgar
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Hana Kolářová
- Department of Biophysics, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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Yu HH, Lin CH, Yu JJ, Kuo WK, Lee HF. Agricultural and industrial wastes applied on the high performance energy storage devices. Heliyon 2024; 10:e31220. [PMID: 38803855 PMCID: PMC11128906 DOI: 10.1016/j.heliyon.2024.e31220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/24/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Driven by population growth, the destruction of the environment and the energy demand continue to increase dramatically. This study uses garlic skin and carbon fiber from agricultural and industrial wastes to prepare energy storage devices. Carbon quantum dots (CQDs) were obtained from garlic skin using high-temperature pyrolysis. The specific capacitance of the gel electrolyte could be effectively increased with a small number of CQDs doping. A methylcellulose-based carbon fiber-electrode was prepared by grinding and depositing the industrial recycled carbon fiber onto a biodegradable methylcellulose substrate. The methylcellulose-based recycled carbon fiber-electrode has the highest specific capacitance, energy density, and power density, which are 155 F/g, 10 Wh/kg, and 4047 W/kg, respectively, at a scan rate of 0.02 V/s, and demonstrates excellent performance, such like high specific capacitance, low internal resistance as well as rapid charge and discharge characteristics, which may have potential to replace the expensive carbon nanotubes and graphenes. The electrodes were made from recycled carbon fiber, the gel electrolyte with garlic CQDs, and a separator assembled into a sandwich structure to form supercapacitors. The capacity retention rate of the supercapacitor still retained 96 % of its initial value after 2000 cycles of charge and discharge testing at a constant current of 0.20 mA. This demonstrates the supercapacitor prepared in this study with competitive power density, energy density, high rate capability, and excellent life cycle stability by combining the garlic skin and carbon fiber from agricultural and industrial wastes, highlighting the enormous potential of agricultural and industrial wastes for energy storage applications.
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Affiliation(s)
- Hsin Her Yu
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Chia-Hua Lin
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Jau-Jhong Yu
- Graduate Institute of Electro-Optical and Materials Science, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Wen-Kai Kuo
- Graduate Institute of Electro-Optical and Materials Science, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Hsu-Feng Lee
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
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Xie J, Wu Z, Sun J, Lv C, Sun Q. Green Synthesis of Carbon Quantum dots Derived from Lycium barbarum for Effective Fluorescence Detection of Cr (VI) Sensing. J Fluoresc 2024; 34:571-578. [PMID: 37314534 DOI: 10.1007/s10895-023-03300-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/05/2023] [Indexed: 06/15/2023]
Abstract
Green and economical self-doped nitrogen-containing fluorescent carbon quantum dots (N-CQDs) were synthesized using a one-pot hydrothermal treatment method. The optical and structural properties of the N-CQDs were investigated in detail by UV-vis and fluorescence spectroscopy, X-ray diffraction (XRD) techniques, transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS) spectroscopy, and elemental analysis illustrate the surface function and composition of N-CQDs. N-CQDs emit a broad fluorescence between365 ̴ 465 nm and fluoresce most strongly at the excitation wavelength of 415 nm. Meanwhile, Cr (VI) could significantly burst the fluorescence intensity of N-CQDs. N-CQDs showed an excellent sensitivity and selectivity to Cr (VI), which exhibited good linearity in the range of 0 ̴ 40 µmol/L with a detection limit of 0.16 µmol/L. In addition, the mechanism of Fluorescence quenching of N-CQDs by Cr (VI) was investigated. This work well provides a research idea for the preparation of green carbon quantum dots from biomass and their use for the detection of metal ions.
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Affiliation(s)
- Jierong Xie
- Xinjiang Key Laboratory of Solid-State Physics and Devices, Urumqi, Xinjiang, 830046, China
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, China
| | - Zhaofeng Wu
- Xinjiang Key Laboratory of Solid-State Physics and Devices, Urumqi, Xinjiang, 830046, China.
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, China.
| | - Jun Sun
- Xinjiang Key Laboratory of Solid-State Physics and Devices, Urumqi, Xinjiang, 830046, China
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, China
| | - Changwu Lv
- Xinjiang Key Laboratory of Solid-State Physics and Devices, Urumqi, Xinjiang, 830046, China.
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, China.
| | - Qihua Sun
- Xinjiang Key Laboratory of Solid-State Physics and Devices, Urumqi, Xinjiang, 830046, China
- School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, 830046, China
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Aladesuyi OA, Oluwafemi OS. Synthesis of glutamine-based green emitting carbon quantum dots as a fluorescent nanoprobe for the determination of iron (Fe 3+) in Solanum tuberrosum (potato). Heliyon 2023; 9:e15904. [PMID: 37187900 PMCID: PMC10176077 DOI: 10.1016/j.heliyon.2023.e15904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 05/17/2023] Open
Abstract
Herein, we reported the use of N-doped green-emitting carbon quantum dots (N-CQDs) as a fluorescent probe for determining of Fe3+ ions in Solanum tuberosum for the first time. The N-CQDs were synthesised through an efficient, one-step, and safe hydrothermal technique using citric acid as the carbon source and glutamine as a novel nitrogen source. The temporal evolution of the optical properties was investigated by varying the synthetic conditions with respect to temperature (160 °C, 180 °C, 200 °C, 220 °C and 240 °C) and citric acid: glutamine precursor ratio (1:1, 1:1.5, l.2,1:3 and 1:4). The N-CQDs was characterised using Fourier-Transform Infra-red Spectroscopy (FTIR) High-resolution transmission electron microscope (HRTEM), ultraviolet-visible spectroscopy (UV-vis) and X-Ray diffraction analysis (XRD) while its stability was evaluated in different media; NaCl, Roswell Park Memorial Institute (RPMI) and Phosphate Buffered Saline (PBS), and at different pHs. The N-CQDs displayed green (525 nm) emission and were spherical with an average particle diameter of 3.41 ± 0.76 nm. The FTIR indicated carboxylic, amino, and hydroxyl functional groups. The as-synthesised N-CQDs were stable in NaCl (up to 1 M), RPMI, and PBS without any significant change in its fluorescent intensity. The pH evaluation showed pHs 6 and 7 as the optimum pHs, while the fluorometric analysis showed selectivity towards Fe 3+ in the presence and absence of interfering ions. The detection limit of 1.05 μM was calculated, and the photoluminescence mechanism revealed static quenching. The as-synthesised N-CQDs was used as a fluorescent nanoprobe to determine the amount of Fe3+ in Solanum tuberosum (Potatoes) tubers. The result showed a high level of accuracy (92.13-96.20%) when compared with an established standard analytical procedure with excellent recoveries of 99.23-103.9%. We believe the as-synthesised N-CQDs can be utilised as a reliable and fast fluorescence nanoprobe for the determining of Fe3+ ions.
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Affiliation(s)
- Olanrewaju A. Aladesuyi
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
| | - Oluwatobi S. Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa
- Corresponding author. Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein 2028, Johannesburg, South Africa.
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Sahu Y, Hashmi A, Patel R, Singh AK, Susan MABH, Carabineiro SAC. Potential Development of N-Doped Carbon Dots and Metal-Oxide Carbon Dot Composites for Chemical and Biosensing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3434. [PMID: 36234561 PMCID: PMC9565249 DOI: 10.3390/nano12193434] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 05/31/2023]
Abstract
Among carbon-based nanomaterials, carbon dots (CDs) have received a surge of interest in recent years due to their attractive features such as tunable photoluminescence, cost effectiveness, nontoxic renewable resources, quick and direct reactions, chemical and superior water solubility, good cell-membrane permeability, and simple operation. CDs and their composites have a large potential for sensing contaminants present in physical systems such as water resources as well as biological systems. Tuning the properties of CDs is a very important subject. This review discusses in detail heteroatom doping (N-doped CDs, N-CDs) and the formation of metal-based CD nanocomposites using a combination of matrices, such as metals and metal oxides. The properties of N-CDs and metal-based CDs nanocomposites, their syntheses, and applications in both chemical sensing and biosensing are reviewed.
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Affiliation(s)
- Yogita Sahu
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg 491001, Chhattisgarh, India
| | - Ayesha Hashmi
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg 491001, Chhattisgarh, India
| | - Rajmani Patel
- Hemchand Yadav University, Durg 491001, Chhattisgarh, India
| | - Ajaya K. Singh
- Department of Chemistry, Govt. V. Y. T. PG. Autonomous College, Durg 491001, Chhattisgarh, India
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Durban 4000, South Africa
| | | | - Sónia A. C. Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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