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Singh P, Bhankar V, Kumar S, Kumar K. Biomass-derived carbon dots as significant biological tools in the medicinal field: A review. Adv Colloid Interface Sci 2024; 328:103182. [PMID: 38759449 DOI: 10.1016/j.cis.2024.103182] [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: 02/10/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 05/19/2024]
Abstract
Early disease detection is crucial since it raises the likelihood of treatment and considerably lowers the cost of therapy. Therefore, the improvement of human life and health depends on the development of quick, efficient, and credible biosensing methods. For improving the quality of biosensors, distinct nanostructures have been investigated; among these, carbon dots have gained much interest because of their great performance. Carbon dots, the essential component of fluorescence nanoparticles, having outstanding chemical characteristics, superb biocompatibility, chemical inertness, low toxicity and potential optical characteristics have attracted the researchers from every corner of the globe. Several carbon dots applications have been thoroughly investigated in recent decade, from optoelectronics to biomedical investigations. This review study primarily emphasizes the recent advancements in the field of biomass-derived carbon dots-based drug delivery, gene delivery and bioimaging, and highlights achievements in two major areas: in vivo applications that involve carbon dots absorption in zebrafish and mice, tumour therapeutics, and imaging-guided drug delivery. Additionally, the possible advantages, difficulties, and future possibilities of using carbon dots for biological applications are also explored.
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Affiliation(s)
- Permender Singh
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat 131039, Haryana, India
| | - Vinita Bhankar
- Department of Biochemistry, Kurukshetra University, Kurukshetra 136119, Haryana, India.
| | - Sandeep Kumar
- Department of Chemistry, J. C. Bose University of Science & Technology, YMCA, Faridabad 121006, Haryana, India
| | - Krishan Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonepat 131039, Haryana, India.
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2
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Xu N, Ge H, Zheng J, Sun W, Du J, Fan J, Peng X. Wavelength-Tuneable Fluorescent Carbon Dots for Nucleic Acid Imaging. Anal Chem 2024. [PMID: 38327078 DOI: 10.1021/acs.analchem.3c05670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Nucleic acid is one of the most important substances in organisms, and its dynamic changes are closely related to physiological processes. Nucleic acid labeling is conducive to providing important information for the early diagnosis and treatment of pathophysiological processes. Here, we utilized the transfer mechanism between carbon sources and CDs to synthesize wavelength-adjustable N-CDs for the nucleic acid image. Along with the increased graphite nitrogen (from 10.6 to 30.1%) gradually by the precise design of the nitrogen structure in carbon sources (e.g., primary amines, secondary amines, tertiary amines, and liking graphite-nitrogen), the energy gap of CDs reduced, resulting in adjustable wavelength from visible to near-infrared range (from 461 nm/527 nm to 650 nm/676 nm). Furthermore, N-CDs exhibited a selective affinity for nucleic acids, especially RNA. Therefore, N-CDs support an efficient platform for real-time tracking of RNA dynamic changes in cells.
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Affiliation(s)
- Ning Xu
- Ningbo Institute of Dalian University of Technology, 26 Yucai Road, Jiangbei District, Ningbo 315016, China
| | - Haoying Ge
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Jiazhu Zheng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Wen Sun
- Ningbo Institute of Dalian University of Technology, 26 Yucai Road, Jiangbei District, Ningbo 315016, China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Jianjun Du
- Ningbo Institute of Dalian University of Technology, 26 Yucai Road, Jiangbei District, Ningbo 315016, China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Jiangli Fan
- Ningbo Institute of Dalian University of Technology, 26 Yucai Road, Jiangbei District, Ningbo 315016, China
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 2 Linggong Road, Dalian 116024, China
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3
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Soares VR, Silva EC, Gomes CG, Vieira MA, Fajardo AR. Fluorescent composite beads: An advanced tool for environmental monitoring and harmful pollutants removal from water. CHEMOSPHERE 2024; 350:140911. [PMID: 38145844 DOI: 10.1016/j.chemosphere.2023.140911] [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: 10/04/2023] [Revised: 11/18/2023] [Accepted: 12/04/2023] [Indexed: 12/27/2023]
Abstract
The quality and safety of water sources have been significantly impacted by various pollutants, including trace elements. To address this concern, this study utilized composite beads made of alginate and carbon quantum dots (CDs) for detecting and removing As(III) and Se(IV) ions in tap water. Fluorescent CDs were hydrothermally synthesized and incorporated into an alginate-Ca2+ matrix through a straightforward procedure. Characterization analyses revealed distinct properties of the composite beads, containing varying amounts of CDs, compared to the pristine beads. Optimal adsorption parameters (30 mg of adsorbent, 10 mg/L of initial pollutant concentration, 35 °C, and 180 min of contact time) for the beads containing 30 w/w-% of CDs (Alg@CDs30) were determined through a fractional factorial design. These composite beads exhibited the highest adsorption capacity for both metals, achieving a removal rate of 94.5% for As(III) and 98.0% for Se(IV) in tap water. Kinetic and isothermal analyses indicated that the adsorption of both metals on Alg@CDs30 involves a combination of chemisorption and diffusion processes. Recycling experiments demonstrated that the composite beads could be reused up to 20 times without a noticeable loss of adsorption efficiency. Regarding the sensing property, our experiments revealed a significant reduction in the fluorescence emission intensity of Alg@CDs30 upon interaction with As(III) and Se(IV), confirming its ability to detect both ions in tap water, with limits of detection (LOD) of 2.6 ± 0.5 μg/L for As(III) and 1.1 ± 0.2 μg/L for Se(IV). The alginate-Ca2+ matrix s contributed to the stability of the CDs' fluorescence. These results confirm the potential of Alg@CDs beads as effective tools for the simultaneous monitoring and removal of hazardous metal ions from real water samples.
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Affiliation(s)
- Victória R Soares
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas-RS, Brazil
| | - Emilly C Silva
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas-RS, Brazil
| | - Charlie G Gomes
- Laboratório de Metrologia Química (LabMequi), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas-RS, Brazil
| | - Mariana A Vieira
- Laboratório de Metrologia Química (LabMequi), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas-RS, Brazil
| | - André R Fajardo
- Laboratório de Tecnologia e Desenvolvimento de Compósitos e Materiais Poliméricos (LaCoPol), Universidade Federal de Pelotas (UFPel), Campus Capão do Leão s/n, 96010-900, Pelotas-RS, Brazil.
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4
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Jagannathan M, Dhinasekaran D, Rajendran AR, Cho S. A Review of Electroactive Nanomaterials in the Detection of Nitrogen-Containing Organic Compounds and Future Applications. BIOSENSORS 2023; 13:989. [PMID: 37998164 PMCID: PMC10669399 DOI: 10.3390/bios13110989] [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: 09/11/2023] [Revised: 11/03/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Electrochemical and impedimetric detection of nitrogen-containing organic compounds (NOCs) in blood, urine, sweat, and saliva is widely used in clinical diagnosis. NOC detection is used to identify illnesses such as chronic kidney disease (CKD), end-stage renal disease (ESRD), cardiovascular complications, diabetes, cancer, and others. In recent years, nanomaterials have shown significant potential in the detection of NOCs using electrochemical and impedimetric sensors. This potential is due to the higher surface area, porous nature, and functional groups of nanomaterials, which can aid in improving the sensing performance with inexpensive, direct, and quick-time processing methods. In this review, we discuss nanomaterials, such as metal oxides, graphene nanostructures, and their nanocomposites, for the detection of NOCs. Notably, researchers have considered nanocomposite-based devices, such as a field effect transistor (FET) and printed electrodes, for the detection of NOCs. In this review, we emphasize the significant importance of electrochemical and impedimetric methods in the detection of NOCs, which typically show higher sensitivity and selectivity. So, these methods will open a new way to make embeddable electrodes for point-of-detection (POD) devices. These devices could be used in the next generation of non-invasive analysis for biomedical and clinical applications. This review also summarizes recent state-of-the-art technology for the development of sensors for on-site monitoring and disease diagnosis at an earlier stage.
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Affiliation(s)
- Mohanraj Jagannathan
- Department of Electronic Engineering, Gachon University, Seongnam-si 13210, Republic of Korea;
| | - Durgalakshmi Dhinasekaran
- Department of Medical Physics, College of Engineering Campus, Anna University, Chennai 600 025, Tamil Nadu, India;
| | - Ajay Rakkesh Rajendran
- Functional Nano-Materials (FuN) Laboratory, Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India;
| | - Sungbo Cho
- Department of Electronic Engineering, Gachon University, Seongnam-si 13210, Republic of Korea;
- Gachon Advanced Institute for Health Science & Technology, Gachon University, Incheon 21999, Republic of Korea
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Lai S, Jin Y, Shi L, Zhou R, Li Y. Fluorescence Sensing Mechanisms of Versatile Graphene Quantum Dots toward Commonly Encountered Heavy Metal Ions. ACS Sens 2023; 8:3812-3823. [PMID: 37737841 DOI: 10.1021/acssensors.3c01295] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Graphene quantum dots (GQDs) have received tremendous attention as fluorescent probes for detection of diverse heavy metal ions (HMIs). Nevertheless, the fluorescence sensing mechanisms of versatile GQDs with respect to different HMIs remain elusive. Herein, the fluorescence sensing behaviors and mechanisms of GQDs with amino and carboxyl groups toward commonly encountered Cr6+, Fe3+, Cu2+, Cr3+, Mn2+, Co2+, Ni2+, Zn2+, Cd2+, and Hg2+ under different pH conditions are systemically explored. The results show that the fluorescence of GQDs can be enhanced by Zn2+/Cd2+ and quenched by other HMIs at pH 5.8, while it can be enhanced by HMIs except Cr6+/Fe3+/Cu2+ at pH 2.0. Systematic studies verify that the fluorescence quenching/enhancing is mediated by the synergistic effect of the inner filter effect (IFE) and the photoinduced electron transfer (PET) or metal orbital-controlled chelation-quenched/enhanced fluorescence (CHQF/CHEF) effect. The strong and weak IFEs of Cr6+/Fe3+ and Cr3+/Cu2+, respectively, are one of the reasons for the fluorescence quenching, while other HMIs have no IFE. Moreover, the PET effect caused by the interaction of GQDs with Hg2+ at pH 5.8 and the CHQF/CHEF effect caused by the interaction of GQDs with other HMIs are also crucial for fluorescence quenching/enhancing. The findings suggest that the pH condition, the existing forms of functional groups on GQDs, and the complexation states of HMIs in aqueous systems dominate the PET and CHQF/CHEF effects. The elucidating of the fluorescence sensing mechanisms of GQDs toward different HMIs paves the way for developing versatile sensing platforms for monitoring of HMI contamination.
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Affiliation(s)
- Shuangquan Lai
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P.R. China
| | - Yong Jin
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P.R. China
| | - Liangjie Shi
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P.R. China
| | - Rong Zhou
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P.R. China
| | - Yupeng Li
- Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P.R. China
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Singh P, Arpita, Kumar S, Kumar P, Kataria N, Bhankar V, Kumar K, Kumar R, Hsieh CT, Khoo KS. Assessment of biomass-derived carbon dots as highly sensitive and selective templates for the sensing of hazardous ions. NANOSCALE 2023; 15:16241-16267. [PMID: 37439261 DOI: 10.1039/d3nr01966g] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Access to safe drinking water and a hygienic living environment are the basic necessities that encourage healthy living. However, the presence of various pollutants (especially toxic heavy metal ions) at high concentrations in water renders water unfit for drinking and domestic use. The presence of high concentrations of heavy-metal ions (e.g., Pb2+, Hg2+, Cr6+, Cd2+, or Cu2+) greater than their permissible limits adversely affects human health, and increases the risk of cancer of the kidneys, liver, skin, and central nervous system. Therefore, their detection in water is crucial. Due to the various benefits of "green"-synthesized carbon-dots (C-dots) over other materials, these materials are potential candidates for sensing of toxic heavy-metal ions in water sources. C-dots are very small carbon-based nanomaterials that show chemical stability, magnificent biocompatibility, excitation wavelength-dependent photoluminescence (PL), water solubility, simple preparation strategies, photoinduced electron transfer, and the opportunity for functionalization. A new family of C-dots called "carbon quantum dots" (CQDs) are fluorescent zero-dimensional carbon nanoparticles of size < 10 nm. The green synthesis of C-dots has numerous advantages over conventional chemical routes, such as utilization of inexpensive and non-poisonous materials, straightforward operations, rapid reactions, and renewable precursors. Natural sources, such as biomass and biomass wastes, are broadly accepted as green precursors for fabricating C-dots because these sources are economical, ecological, and readily/extensively accessible. Two main methods are available for C-dots production: top-down and bottom-up. Herein, this review article discusses the recent advancements in the green fabrication of C-dots: photostability; surface structure and functionalization; potential applications for the sensing of hazardous anions and toxic heavy-metal ions; binding of toxic ions with C-dots; probable mechanistic routes of PL-based sensing of toxic heavy-metal ions. The green production of C-dots and their promising applications in the sensing of hazardous ions discussed herein provides deep insights into the safety of human health and the environment. Nonetheless, this review article provides a resource for the conversion of low-value biomass and biomass waste into valuable materials (i.e., C-dots) for promising sensing applications.
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Affiliation(s)
- Permender Singh
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonipat-131039, Haryana, India.
| | - Arpita
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Sandeep Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Parmod Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Navish Kataria
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Vinita Bhankar
- Department of Biochemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
| | - Krishan Kumar
- Department of Chemistry, Deenbandhu Chhotu Ram University of Science & Technology, Murthal, Sonipat-131039, Haryana, India.
| | - Ravi Kumar
- J. C. Bose University of Science & Technology, YMCA, Faridabad-121006, Haryana, India.
| | - Chien-Te Hsieh
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, Knoxville, TN 37996, USA
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan.
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam-603103, Tamil Nadu, India
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Che H, Tian X, Chen W, Dai C, Nie Y, Li Y, Lu L. Simultaneous visual detection of multiple heavy metal ions by a high-throughput fluorescent probe. Mikrochim Acta 2023; 190:311. [PMID: 37468761 DOI: 10.1007/s00604-023-05882-0] [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: 04/10/2023] [Accepted: 06/26/2023] [Indexed: 07/21/2023]
Abstract
To develop simultaneous and in-situ detection techniques towards Cr(VI) and Mn(II), Eu/Tb@CDs with white fluorescence were prepared by a one-step hydrothermal method. With the increase of Cr(VI), all fluorescence channels of Eu/Tb@CDs exhibited obvious quenching, and the detection limit (LOD) was 0.10 μM. In the presence of Mn(II), only the fluorescence from Tb and Eu was quenched, while the fluorescence of CDs was not effected. The LOD for Mn(II) was 0.16 μM. More importantly, in the actual water samples where Cr(VI) and Mn(II) coexist, Eu/Tb@CDs can realize their rapid and simultaneous detection by simple spectral calculation. The selective and competitive experiments have also confirmed that the detection of Cr(VI) and Mn(II) was not interfered by common pollutants in groundwater. It is undeniable that the simultaneous detection of multiple targets by one probe not only greatly improves the detection efficiency, but also has important significance for the field monitoring of water quality parameters.
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Affiliation(s)
- Huachao Che
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Xike Tian
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Wei Chen
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Chu Dai
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Yulun Nie
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China.
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China.
| | - Yong Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
| | - Liqiang Lu
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, China
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Atulbhai SV, Singhal RK, Basu H, Kailasa SK. Perspectives of different colour-emissive nanomaterials in fluorescent ink, LEDs, cell imaging, and sensing of various analytes. LUMINESCENCE 2023; 38:867-895. [PMID: 35501299 DOI: 10.1002/bio.4272] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/19/2022] [Accepted: 04/18/2022] [Indexed: 11/06/2022]
Abstract
In the past 2 decades, multicolour light-emissive nanomaterials have gained significant interest in chemical and biological sciences because of their unique optical properties. These materials have drawn much attention due to their unique characteristics towards various application fields. The development of novel nanomaterials has become the pinpoint for different application areas. In this review, the recent progress in the area of multicolour-emissive nanomaterials is summarized. The different emissions (white, orange, green, red, blue, and multicolour) of nanostructure materials (metal nanoclusters, quantum dots, carbon dots, and rare earth-based nanomaterials) are briefly discussed. The potential applications of different colour-emissive nanomaterials in the development of fluorescent inks, light-emitting diodes, cell imaging, and sensing devices are briefly summarized. Finally, the future perspectives of multicolour-emissive nanomaterials are discussed.
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Affiliation(s)
- Sadhu Vibhuti Atulbhai
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
| | - Rakesh Kumar Singhal
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - Hirakendu Basu
- Analytical Chemistry Division, Bhabha Atomic Research Center, Trombay, Mumbai, India
| | - Suresh Kumar Kailasa
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India
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Arpita, Kumar P, Kataria N, Narwal N, Kumar S, Kumar R, Khoo KS, Show PL. Plastic Waste-Derived Carbon Dots: Insights of Recycling Valuable Materials Towards Environmental Sustainability. CURRENT POLLUTION REPORTS 2023; 9:1-21. [PMID: 37362608 PMCID: PMC10214366 DOI: 10.1007/s40726-023-00268-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 04/26/2023] [Indexed: 06/28/2023]
Abstract
Carbon dots (CDs) or carbon quantum dots (CQDs) have emerged as rising stars in the carbon family due to their diverse applications in various fields. CDs are spherical particles with a well-distributed size of less than 10 nm. Functional CDs are promising nanomaterials with low toxicity, low cost, and enormous applications in the field of bioimaging, optoelectronics, photocatalysis, and sensing. Plastic is non-biodegradable and hazardous to the environment, however extremely durable and used in abundance. During the COVID-19 pandemic, the use of plastic waste, particularly masks, goggles, face shields, and shoe cover, has increased tremendously. It needs to be recycled in a productive way as plastic wastes take hundreds or thousands of years to degrade naturally. The conversion of plastic waste into magnificent CDs has been reported as one of the key alternatives for environmental sustainability and socio-economic benefits. In this review, synthetic routes for the conversion of plastic wastes into CDs utilizing hydrothermal, solvothermal, pyrolysis, flash joule heating, and characterization of these CDs using different techniques, such as Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and transmission electron microscope, have been discussed. Furthermore, potential applications of these plastic-derived CDs in sensing, catalysis, agronomics, and LED lights are summarized herein.
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Affiliation(s)
- Arpita
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Parmod Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Navish Kataria
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Nishita Narwal
- University School of Environment Management, Guru Gobind Singh Indraprastha University, New Delhi, 110078 India
| | - Sandeep Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Ravi Kumar
- Faculty of Sciences, J. C. Bose University of Science & Technology, YMCA, Haryana 121006 Faridabad, India
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
- Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105, Chennai, India
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
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10
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Liu Q, Gao X, Liu Z, Gai L, Yue Y, Ma H. Sensitive and Selective Electrochemical Detection of Lead(II) Based on Waste-Biomass-Derived Carbon Quantum Dots@Zeolitic Imidazolate Framework-8. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093378. [PMID: 37176266 PMCID: PMC10180021 DOI: 10.3390/ma16093378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
An electrochemical sensor based on carbon quantum dots (CQDs) and zeolitic imidazolate framework-8 (ZIF-8) composite was fabricated to detect lead(II). The CQDs (2.47 ± 0.52 nm) were synthesized from platanus acerifoli leaves by carbonization and the hydrothermal method. Under the optimal conditions, the fabricated electrochemical sensor had excellent performance in detecting Pb2+. The linear range for Pb2+ was 1 nM-1 μM, and the limit of detection (LOD) was 0.04 nM and the limit of quantification (LOQ) was 0.14 nM. Moreover, when the solution contained Pb2+ and Cd2+, the linear range for Pb2+ was 50 nM to 1 μM and the LOD was 0.02 nM. When the solution contained Pb2+ and Cu2+, the linear range for Pb2+ was 50 nM-750 nM and LOD was 0.07 nM. Furthermore, even if the solution contained Pb2+, Cd2+ and Cu2+, the linear range for Pb2+ was 50 nM-1 μM and the LOD was 0.04 nM. The X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectrometer (FTIR) and Brunauer-Emmet-Teller (BET) results indicated that the composite electrode materials had abundant oxygen-containing functional groups, a large specific surface area and pore structure, which are conducive to the adsorption of heavy metal ions and improve the detection performance.
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Affiliation(s)
- Qing Liu
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiang Gao
- Engineering and Technology Center of Electrochemistry, School of Chemistry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhibao Liu
- Engineering and Technology Center of Electrochemistry, School of Chemistry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Ligang Gai
- Engineering and Technology Center of Electrochemistry, School of Chemistry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yan Yue
- Engineering and Technology Center of Electrochemistry, School of Chemistry and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hongfang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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11
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Selvaraj S, Dhesingh RS. Preparation and characterization of carbon quantum dot‐hydroxyapatite‐alginate based hybrid fluorescent ink for sensor application. J Appl Polym Sci 2023. [DOI: 10.1002/app.53721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Affiliation(s)
- Sharmila Selvaraj
- Nano‐Bio Materials and Sensors Laboratory, National Centre for Nanoscience and Nanotechnology University of Madras, Guindy Campus Chennai Tamil Nadu India
| | - Ravi Shankaran Dhesingh
- Nano‐Bio Materials and Sensors Laboratory, National Centre for Nanoscience and Nanotechnology University of Madras, Guindy Campus Chennai Tamil Nadu India
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12
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Hebbar A, Selvaraj R, Vinayagam R, Varadavenkatesan T, Kumar PS, Duc PA, Rangasamy G. A critical review on the environmental applications of carbon dots. CHEMOSPHERE 2023; 313:137308. [PMID: 36410502 DOI: 10.1016/j.chemosphere.2022.137308] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 10/28/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
The discovery of zero-dimensional carbonaceous nanostructures called carbon dots (CDs) and their unique properties associated with fluorescence, quantum confinement and size effects have intrigued researchers. There has been a substantial increase in the amount of research conducted on the lines of synthesis, characterization, modification, and enhancement of properties by doping or design of composite materials, and a diversification of their applications in sensing, catalysis, optoelectronics, photovoltaics, and imaging, among many others. CDs fulfill the need for inexpensive, simple, and continuous environmental monitoring, detection, and remediation of various contaminants such as metals, dyes, pesticides, antibiotics, and other chemicals. The principles of green chemistry have also prompted researchers to rethink novel modes of nanoparticle synthesis by incorporating naturally available carbon precursors or developing micro reactor-based techniques. Photocatalysis using CDs has introduced the possibility of utilizing light to accelerate redox chemical transformations. This comprehensive review aims to provide the reader with a broader perspective of carbon dots by encapsulating the concepts of synthesis, characterization, applications in contaminant detection and photocatalysis, demerits and research gaps, and potential areas of improvement.
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Affiliation(s)
- Akshatha Hebbar
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Raja Selvaraj
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Ramesh Vinayagam
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Thivaharan Varadavenkatesan
- Department of Biotechnology, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Ponnusamy Senthil Kumar
- Green Technology and Sustainable Development in Construction Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam.
| | - Pham Anh Duc
- Faculty of Safety Engineering, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
| | - Gayathri Rangasamy
- University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
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13
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Lemon juice-derived nitrogen-doped carbon quantum dots for highly sensitive and selective determination of ferrous ions and cell imaging. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Liu J, Zhang K, Wang H, Lin L, Zhang J, Li P, Zhang Q, Shi J, Cui H. Advances in Micro-/Mesopore Regulation Methods for Plant-Derived Carbon Materials. Polymers (Basel) 2022; 14:polym14204261. [PMID: 36297839 PMCID: PMC9611847 DOI: 10.3390/polym14204261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/01/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
In recent years, renewable and clean energy has become increasingly important due to energy shortage and environmental pollution. Selecting plants as the carbon precursors to replace costly non-renewable energy sources causing severe pollution is a good choice. In addition, owing to their diverse microstructure and the rich chemical composition, plant-based carbon materials are widely used in many fields. However, some of the plant-based carbon materials have the disadvantage of possessing a large percentage of macroporosity, limiting their functionality. In this paper, we first introduce two characteristics of plant-derived carbon materials: diverse microstructure and rich chemical composition. Then, we propose improvement measures to cope with a high proportion of macropores of plant-derived carbon materials. Emphatically, size regulation methods are summarized for micropores (KOH activation, foam activation, physical activation, freezing treatment, and fungal treatment) and mesopores (H3PO4 activation, enzymolysis, molten salt activation, and template method). Their advantages and disadvantages are also compared and analyzed. Finally, the paper makes suggestions on the pore structure improvement of plant-derived carbon materials.
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Affiliation(s)
- Jing Liu
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
| | - Ke Zhang
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
| | - Huiyan Wang
- Beijing Spacecraft Manufacturing Co., Ltd., Beijing 100094, China
| | - Lin Lin
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
- Correspondence: (L.L.); (J.S.)
| | - Jian Zhang
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
| | - Peng Li
- School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Qiang Zhang
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
| | - Junyou Shi
- Key Laboratory of Wooden Materials Science and Engineering of Jilin Province, Beihua University, Jilin 132013, China
- Correspondence: (L.L.); (J.S.)
| | - Hang Cui
- National Demonstration Center for Experimental Physics Education, College of Physics, Jilin University, Changchun 130012, China
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15
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Carneiro SV, Oliveira JJP, Rodrigues VSF, Fechine LMUD, Antunes RA, Neto MLA, de Moura TA, César CL, de Carvalho HF, Paschoal AR, Freire RM, Fechine PBA. Doped Carbon Quantum Dots/PVA Nanocomposite as a Platform to Sense Nitrite Ions in Meat. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43597-43611. [PMID: 36103380 DOI: 10.1021/acsami.2c09197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A sensor device based on doped-carbon quantum dots is proposed herein for detection of nitrite in meat products by fluorescence quenching. For the sensing platform, carbon quantum dots doped with boron and functionalized with nitrogen (B,N-Cdot) were synthesized with an excellent 44.3% quantum yield via a one-step hydrothermal route using citric acid, boric acid, and branched polyethylenimine as carbon, boron, and nitrogen sources, respectively. After investigation of their chemical structure and fluorescent properties, the B,N-Cdot at aqueous suspensions showed high selectivity for NO2- in a linear range from 20 to 50 mmol L-1 under optimum conditions at pH 7.4 and a 340 nm excitation. Furthermore, the prepared B,N-Cdots successfully detected NO2- in a real meat sample with recovery of 91.4-104% within the analyzed range. In this manner, a B,N-Cdot/PVA nanocomposite film with blue emission under excitation at 360 nm was prepared, and a first assay detection of NO2- in meat products was tested using a smartphone application. The potential application of the newly developed sensing device containing a highly fluorescent probe should aid in the development of a rapid and inexpensive strategy for NO2- detection.
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Affiliation(s)
- Samuel Veloso Carneiro
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - José Joelson Pires Oliveira
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - Vivian Stephanie Ferreira Rodrigues
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - Lillian Maria Uchoa Dutra Fechine
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - Renato Altobelli Antunes
- Center for Engineering, Modeling and Applied Social Sciences, Federal University of ABC, CEP 09210-580 Santo André, São Paulo, Brazil
| | - Manoel Lourenço Alves Neto
- Department of Physics, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
- National Institute of Photonics Applied to Cell Biology, State University of Campinas, IFGW - Unicamp Cid. Universitária, 13083863 Campinas, São Paulo, Brazil
| | - Thiago Alves de Moura
- Department of Physics, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - Carlos Lenz César
- Department of Physics, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
- National Institute of Photonics Applied to Cell Biology, State University of Campinas, IFGW - Unicamp Cid. Universitária, 13083863 Campinas, São Paulo, Brazil
| | - Hernandes Faustino de Carvalho
- National Institute of Photonics Applied to Cell Biology, State University of Campinas, IFGW - Unicamp Cid. Universitária, 13083863 Campinas, São Paulo, Brazil
- State University of Campinas, Institute of Biology, Department of Cell Biology, Department of Cell Biology - IB - CP, 6109 UNICAMP Cid. Universitária, 13083863 Campinas, São Paulo, Brazil
| | - Alexandre Rocha Paschoal
- Department of Physics, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
| | - Rafael Melo Freire
- Laboratory of Pesticide Residues and Environment, Instituto de Investigaciones Agropecuarias, INIA Centro Regional La Platina, Santiago 8820000, Chile
| | - Pierre Basílio Almeida Fechine
- Advanced Materials Chemistry Group (GQMat), Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceara - UFC, Campus do Pici, CP 12100, CEP 60451-970 Fortaleza, Ceará, Brazil
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Facile and Green Synthesis of Highly Fluorescent Carbon Quantum Dots from Water Hyacinth for the Detection of Ferric Iron and Cellular Imaging. NANOMATERIALS 2022; 12:nano12091528. [PMID: 35564237 PMCID: PMC9100092 DOI: 10.3390/nano12091528] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/23/2022] [Accepted: 04/29/2022] [Indexed: 12/04/2022]
Abstract
Natural biomass is used for facile synthesis of carbon quantum dots (CQDs) with high fluorescence, owing to its abundance, low cost, and eco-friendliness. In this study, a bottom-up hydrothermal method was used to prepare CQDs from water hyacinth (wh) at a constant temperature of 180 °C for 12 h. The synthesized wh-CQDs had uniform size, amorphous graphite structure, high water solubility (containing multiple hydroxyl and carboxyl groups on the surface), excitation light-dependent characteristics, and high photostability. The results showed that the aqueous solution of CQDs could detect Fe3+ rapidly, sensitively, and highly selectively with a detection limit of 0.084 μM in the linear range of 0–330 μM, which is much lower than the detection limit of 0.77 μM specified by the World Health Organization. More importantly, because the wh-CQDs were synthesized without any additives, they exhibited low toxicity to Klebsiella sp. cells even at high concentrations. Moreover, wh-CQDs emitted bright blue fluorescence in Klebsiella sp. cells, indicating its strong penetrating ability. Correspondingly, the fluorescent cell sorting results also revealed that the proportion of cell internalization reached 41.78%. In this study, wh-CQDs derived from natural biomass were used as high-performance fluorescent probes for Fe3+ detection and Klebsiella sp. imaging. This study is expected to have great significance for the application of biomass carbon spots in the field of cellular imaging and biology.
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17
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Perikala M, Bhardwaj A. Waste to white light: a sustainable method for converting biohazardous waste to broadband white LEDs. RSC Adv 2022; 12:11443-11453. [PMID: 35425042 PMCID: PMC9006348 DOI: 10.1039/d2ra01146h] [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: 02/21/2022] [Accepted: 04/03/2022] [Indexed: 11/30/2022] Open
Abstract
The Covid-19 pandemic has generated a lot of non-degradable biohazardous plastic waste across the globe in the form of disposable surgical and N95 masks, gloves, face shields, syringes, bottles and plastic storage containers. In the present work we address this problem by recycling plastic waste to single system white light emitting carbon dots (CDs) using a pyrolytic method. The synthesized CDs have been embedded into a transparent polymer to form a carbon dot phosphor. This CD phosphor has a broad emission bandwidth of 205 nm and is stable against photo degradation for about a year. A white LED with CRI ∼70 and CIE co-ordinates of (0.25, 0.32) using the fabricated CD phosphor is reported. Further our phosphor is scalable and is environmentally sustainable, and will find wide application in next generation artificial lighting systems.
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Affiliation(s)
- Manasa Perikala
- Department of Instrumentation and Applied Physics, Indian Institute of Science Bangalore 560012 India
| | - Asha Bhardwaj
- Department of Instrumentation and Applied Physics, Indian Institute of Science Bangalore 560012 India
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18
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Wang G, Zhang S, Cui J, Gao W, Rong X, Lu Y, Gao C. Preparation of nitrogen-doped carbon quantum dots from chelating agent and used as fluorescent probes for accurate detection of ClO− and Cr(Ⅵ). Anal Chim Acta 2022; 1195:339478. [DOI: 10.1016/j.aca.2022.339478] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 11/01/2022]
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19
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John JF, Jagannathan M, Rajendran AR, Mohanapriya P, Natarajan TS, Dhinasekaran D. Sustainable multilayer biomass carbon and polymer hybrid column as potential antibacterial water filter. CHEMOSPHERE 2022; 286:131691. [PMID: 34392197 DOI: 10.1016/j.chemosphere.2021.131691] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/14/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
Stipulation of fresh water for domestic use without any microbial, organic and inorganic contaminants is of high need. Sustainable, efficient, cost-effective and robust water purification technologies is of high need and it can be achieved using nanomaterials and their composite. Nanostructured graphene has unique properties like high surface to volume ratio, higher absorbability, reusability with minimal chemical alterations, and low cytotoxicity. From the validation of these properties, we have developed PLLA-Ag@graphene sandwich structures as an effective adsorbate for water purification application. As the real water bodies have lot of bacterial contaminants, the material is also designed as efficient adsorbate with antibacterial efficacy. In view of achieving these objectives, we have synthesized PLLA fibre mats by electrospinning method, followed by PLLA-Graphene and Ag decorated PLLA-graphene mats. The crystallite size for graphite and Ag@graphene was calculated as 30.82 nm and 43.79 nm, respectively. Furthermore, the UV analysis of Ag@graphene shows two peaks corresponding to graphene and Ag NP at 285 nm and 407 nm respectively. The layers were assembled in the order of polymeric fibre, as-fired biomass graphite, Ag@graphene for methodical filtration process. The filtration efficacy of the filtrate was tested using sewage water and the results shows higher contamination removal percentage of 87 % with TDS values in the drinking water standards after filtration. The antibacterial efficacy results also evidence of the potentialities of the hybrid system towards water purification application.
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Affiliation(s)
- Josfel Flora John
- Department of Medical Physics, CEG Campus, Anna University, Chennai, 600 025, India
| | - Mohanraj Jagannathan
- Department of Medical Physics, CEG Campus, Anna University, Chennai, 600 025, India
| | - Ajay Rakkesh Rajendran
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603 203, India
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20
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Bilge S, Karadurmus L, Sınağ A, Ozkan SA. Green synthesis and characterization of carbon-based materials for sensitive detection of heavy metal ions. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Xu W, Hao X, Li T, Dai S, Fang Z. Dual-Mode Fluorescence and Visual Fluorescent Test Paper Detection of Copper Ions and EDTA. ACS OMEGA 2021; 6:29157-29165. [PMID: 34746604 PMCID: PMC8567358 DOI: 10.1021/acsomega.1c04406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
In this study, blue-emission carbon dots were prepared from the legumes of the vegetable Pisum sativum Linn. by one-step carbonization. The fluorescence of a carbon dot (CDs) solution can be quenched by copper ions and recovered by ethylenediaminetetraacetic acid (EDTA). In addition, two kinds of visual fluorescent filter papers were prepared. Finally, a dual-mode fluorescence and visual fluorescent test paper was employed for the detection of copper ions and EDTA. The simple synthesis method and the high safety enable this material to have more application possibilities.
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Affiliation(s)
- Wanqing Xu
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan 114051, PR China
| | - Xiaoliang Hao
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan 114051, PR China
| | - Tongtong Li
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan 114051, PR China
| | - Shujuan Dai
- School
of Mining Engineering, University of Science
and Technology Liaoning, Anshan 114051, PR China
| | - Zhigang Fang
- School
of Chemical Engineering, University of Science
and Technology Liaoning, Anshan 114051, PR China
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