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Wang M, Wang L, Hou A, Hong M, Li C, Yue Q. Portable sensing methods based on carbon dots for food analysis. J Food Sci 2024; 89:3935-3949. [PMID: 38865253 DOI: 10.1111/1750-3841.17148] [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: 02/26/2024] [Revised: 05/03/2024] [Accepted: 05/14/2024] [Indexed: 06/14/2024]
Abstract
Food analysis is significantly important in monitoring food quality and safety for human health. Traditional methods for food detection mainly rely on benchtop instruments and require a certain amount of analysis time, which promotes the development of portable sensors. Portable sensing methods own many advantages over traditional techniques such as flexibility and accessibility in diverse environments, real-time monitoring, cost-effectiveness, and rapid deployment. This review focuses on the portable approaches based on carbon dots (CDs) for food analysis. CDs are zero-dimensional carbon-based material with a size of less than 10 nm. In the manner of sensing, CDs exhibit rich functional groups, low biotoxicity, good biocompatibility, and excellent optical properties. Furthermore, there are many methods for the synthesis of CDs using various precursor materials. The incorporation of CDs into food science and engineering for enhancing food safety control and risk assessment shows promising prospects.
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Affiliation(s)
- Min Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Lijun Wang
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Aiying Hou
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Min Hong
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
| | - Chenzhong Li
- Biomedical Engineering, School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
| | - Qiaoli Yue
- School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, China
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Jiang D, Zheng M, Ma X, Zhang Y, Jiang S, Li J, Zhang C, Liu K, Li L. Rhodamine-Anchored Polyacrylamide Hydrogel for Fluorescent Naked-Eye Sensing of Fe 3. Molecules 2023; 28:6572. [PMID: 37764348 PMCID: PMC10537437 DOI: 10.3390/molecules28186572] [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: 07/30/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
A fluorescent and colorimetric poly (acrylamide)-based copolymer probe P(AAm-co-RBNCH) has been designed via free radical polymerization of a commercial acrylamide monomer with a rhodamine-functionalized monomer RBNCH. Metal ion selectivity of RBNCH was investigated by fluorescence and colorimetric spectrophotometry. Upon addition of Fe3+, a visual color change from colorless to red and a large fluorescence enhancement were observed for the ring-opening of the rhodamine spirolactam mechanism. The monomer gives a sensitive method for quantitatively detecting Fe3+ in the linear range of 100-200 μM, with a limit of detection as low as 27 nM and exhibiting high selectivity for Fe3+ over 12 other metal ions. The hydrogel sensor was characterized by FTIR, and the effects of RBNCH amount on gel content and swelling properties were explored. According to the recipe of 1.0 mol% RBNCH to the total monomers, the fabricated hydrogel sensor displayed a good swelling property and reversibility performance and has potential for application in the imaging of Fe3+ level in industrial wastewater.
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Affiliation(s)
- Dandan Jiang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
| | - Minghao Zheng
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
| | - Xiaofan Ma
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (X.M.); (S.J.)
| | - Yingzhen Zhang
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
| | - Shaohua Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (X.M.); (S.J.)
| | - Juanhua Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
| | - Chunmei Zhang
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;
| | - Kunming Liu
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
| | - Liqing Li
- Jiangxi Provincial Key Laboratory of Functional Molecular Materials Chemistry, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China; (D.J.); (M.Z.); (Y.Z.); (J.L.)
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Gandla K, Kumar KP, Rajasulochana P, Charde MS, Rana R, Singh LP, Haque MA, Bakshi V, Siddiqui FA, Khan SL, Ganguly S. Fluorescent-Nanoparticle-Impregnated Nanocomposite Polymeric Gels for Biosensing and Drug Delivery Applications. Gels 2023; 9:669. [PMID: 37623124 PMCID: PMC10453855 DOI: 10.3390/gels9080669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/05/2023] [Accepted: 08/15/2023] [Indexed: 08/26/2023] Open
Abstract
Nanocomposite polymeric gels infused with fluorescent nanoparticles have surfaced as a propitious category of substances for biomedical purposes owing to their exceptional characteristics. The aforementioned materials possess a blend of desirable characteristics, including biocompatibility, biodegradability, drug encapsulation, controlled release capabilities, and optical properties that are conducive to imaging and tracking. This paper presents a comprehensive analysis of the synthesis and characterization of fluorescent-nanoparticle-impregnated nanocomposite polymeric gels, as well as their biomedical applications, such as drug delivery, imaging, and tissue engineering. In this discourse, we deliberate upon the merits and obstacles linked to these substances, encompassing biocompatibility, drug encapsulation, optical characteristics, and scalability. The present study aims to provide an overall evaluation of the potential of fluorescent-nanoparticle-impregnated nanocomposite polymeric gels for biomedical applications. Additionally, emerging trends and future directions for research in this area are highlighted.
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Affiliation(s)
- Kumaraswamy Gandla
- Department of Pharmaceutical Analysis, Chaitanya (Deemed to be University), Hyderabad 500075, India
| | - K. Praveen Kumar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Government of NCT of Delhi, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - P. Rajasulochana
- Department of Microbiology, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Kanchipuram 602105, India
| | - Manoj Shrawan Charde
- Department of Pharmaceutical Chemistry, Government College of Pharmacy, Karad 415124, India
| | - Ritesh Rana
- Department of Pharmaceutics, Himachal Institute of Pharmaceutical Education and Research (HIPER), Hamirpur 177033, India
| | - Laliteshwar Pratap Singh
- Department of Pharmaceutical Chemistry, Narayan Institute of Pharmacy, Gopal Narayan Singh University, Rohtas 821305, India
| | - M. Akiful Haque
- Department of Pharmaceutical Analysis, School of Pharmacy, Anurag University, Hyderabad 500088, India
| | - Vasudha Bakshi
- Department of Pharmaceutics, School of Pharmacy, Anurag University, Hyderabad 500088, India
| | - Falak A. Siddiqui
- Department of Pharmaceutical Chemistry, N.B.S. Institute of Pharmacy, Ausa 413520, India
- Department of Pharmaceutical Chemistry, School of Pharmacy, Anurag University, Hyderabad 500088, India
| | - Sharuk L. Khan
- Department of Pharmaceutical Chemistry, N.B.S. Institute of Pharmacy, Ausa 413520, India
- Department of Pharmaceutical Chemistry, School of Pharmacy, Anurag University, Hyderabad 500088, India
| | - S. Ganguly
- Bar-Ilan Institute for Nanotechnology and Advanced Materials, Ramat Gan 5290002, Israel
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Mattelin V, Verfaille L, Kundu K, De Wildeman S, Boon N. A New Colorimetric Test for Accurate Determination of Plastic Biodegradation. Polymers (Basel) 2023; 15:polym15102311. [PMID: 37242886 DOI: 10.3390/polym15102311] [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: 04/07/2023] [Revised: 05/03/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
As plastic waste is accumulating in both controlled waste management settings and natural settings, much research is devoted to search for solutions, also in the field of biodegradation. However, determining the biodegradability of plastics in natural environments remains a big challenge due to the often very low biodegradation rates. Many standardised test methods for biodegradation in natural environments exist. These are often based on mineralisation rates in controlled conditions and are thus indirect measurements of biodegradation. It is of interest for both researchers and companies to have tests that are more rapid, easier, and more reliable to screen different ecosystems and/or niches for their plastic biodegradation potential. In this study, the goal is to validate a colorimetric test, based on carbon nanodots, to screen biodegradation of different types of plastics in natural environments. After introducing carbon nanodots into the matrix of the target plastic, a fluorescent signal is released upon plastic biodegradation. The in-house-made carbon nanodots were first confirmed regarding their biocompatibility and chemical and photostability. Subsequently, the effectivity of the developed method was evaluated positively by an enzymatic degradation test with polycaprolactone with Candida antarctica lipase B. Finally, validation experiments were performed with enriched microorganisms and real environmental samples (freshwater and seawater), of which the results were compared with parallel, frequently used biodegradation measures such as O2 and CO2, dissolved organic carbon, growth and pH, to assess the reliability of the test. Our results indicate that this colorimetric test is a good alternative to other methods, but a combination of different methods gives the most information. In conclusion, this colorimetric test is a good fit to screen, in high throughput, the depolymerisation of plastics in natural environments and under different conditions in the lab.
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Affiliation(s)
- Valérie Mattelin
- Center for Microbial Ecology and Technology (CMET), Ghent University, 9000 Ghent, Belgium
| | - Lennert Verfaille
- Center for Microbial Ecology and Technology (CMET), Ghent University, 9000 Ghent, Belgium
| | - Kankana Kundu
- Center for Microbial Ecology and Technology (CMET), Ghent University, 9000 Ghent, Belgium
| | | | - Nico Boon
- Center for Microbial Ecology and Technology (CMET), Ghent University, 9000 Ghent, Belgium
- Center for Advanced Process Technology for Urban Resource Recovery (CAPTURE), 9000 Ghent, Belgium
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Wu S, Yin Y, Sun C, Ma C. Novel Paper-Based Fluorescent Sensor Based on N-Doped Carbon Quantum Dots (N-CQDs) and Cotton Fiber Paper (CFP) with High Selectivity and Sensitivity for the Visual Determination of Mercury (II) in Environmental Waters. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2117371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Shunwei Wu
- School of Chemical Engineering, Qinghai University, Xining, China
| | - Yongzheng Yin
- School of Chemical Engineering, Qinghai University, Xining, China
| | - Chunyan Sun
- School of Chemical Engineering, Qinghai University, Xining, China
| | - Chenghai Ma
- School of Chemical Engineering, Qinghai University, Xining, China
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Xiang J, Li R, Long X, Wu S, Wang J, Wang Z. Strict Twice Iterative Optimization Strategy to Synthesize Ultrabright Fluorescent Carbon Dots for UV and pH Dual-Encryption Fluorescent Ink. ACS OMEGA 2022; 7:29952-29958. [PMID: 36061698 PMCID: PMC9434782 DOI: 10.1021/acsomega.2c02949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
In this work, ultrabright fluorescent carbon dots (U-CDs) were synthesized by using a strict twice iterative optimization strategy. Their relative photoluminescence (PL) quantum yield is close to 100%, exceeding most of the reported fluorescent CDs and greatly boosting the practical applications of fluorescent CDs in many fields. Then serving as fluorescent anti-counterfeiting ink was taken as an example to briefly introduce the application of the U-CDs. The PL emission of the U-CDs is quenched at the range of pH < 4 or pH > 11 and restored at the range of pH = 5-10. This pH-sensitive PL feature allows the U-CDs to be used as fluorescent ink for pH and UV dual information encryption. The written or printed information is invisible under daylight but visible under UV light. After acid treatment or alkali treatment, the information is invisible even under a UV lamp but visible after neutralization treatment. This work provides a standardized scheme for optimizing the synthesis conditions of fluorescent CDs and paves the way for large-scale production of high-performance fluorescent CDs.
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Affiliation(s)
- Jiamei Xiang
- College
of Chemistry and Materials Science, Sichuan
Normal University, Chengdu 610066, China
| | - Ruixue Li
- College
of Chemistry and Materials Science, Sichuan
Normal University, Chengdu 610066, China
| | - Xiang Long
- College
of Chemistry and Materials Science, Sichuan
Normal University, Chengdu 610066, China
| | - Shaogui Wu
- College
of Chemistry and Materials Science, Sichuan
Normal University, Chengdu 610066, China
| | - Jiayang Wang
- Department
of Resources & Environment, Chengdu
University of Information Technology, Chengdu 610041, China
| | - Zhuo Wang
- Department
of Resources & Environment, Chengdu
University of Information Technology, Chengdu 610041, China
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