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Qin Y, Zhong X, Liang C, Liang Z, Nong Y, Deng L, Guo Y, Li J, Zhang M, Tang S, Wei L, Yang Y, Liang Y, Wu J, Lam YM, Su Z. Nanozyme-based colorimetric sensor arrays coupling with smartphone for discrimination and "segmentation-extraction-regression" deep learning assisted quantification of flavonoids. Biosens Bioelectron 2024; 263:116604. [PMID: 39094293 DOI: 10.1016/j.bios.2024.116604] [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: 04/21/2024] [Revised: 06/26/2024] [Accepted: 07/23/2024] [Indexed: 08/04/2024]
Abstract
Achieving rapid, cost effective, and intelligent identification and quantification of flavonoids is challenging. For fast and uncomplicated flavonoid determination, a sensing platform of smartphone-coupled colorimetric sensor arrays (electronic noses) was developed, relying on the differential competitive inhibition of hesperidin, nobiletin, and tangeretin on the oxidation reactions of nanozymes with a 3,3',5,5'-tetramethylbenzidine substrate. First, density functional theory calculations predicted the enhanced peroxidase-like activities of CeO2 nanozymes after doping with Mn, Co, and Fe, which was then confirmed by experiments. The self-designed mobile application, Quick Viewer, enabled a rapid evaluation of the red, green, and blue values of colorimetric images using a multi-hole parallel acquisition strategy. The sensor array based on three channels of CeMn, CeFe, and CeCo was able to discriminate between different flavonoids from various categories, concentrations, mixtures, and the various storage durations of flavonoid-rich Citri Reticulatae Pericarpium through a linear discriminant analysis. Furthermore, the integration of a "segmentation-extraction-regression" deep learning algorithm enabled single-hole images to be obtained by segmenting from a 3 × 4 sensing array to augment the featured information of array images. The MobileNetV3-small neural network was trained on 37,488 single-well images and achieved an excellent predictive capability for flavonoid concentrations (R2 = 0.97). Finally, MobileNetV3-small was integrated into a smartphone as an application (Intelligent Analysis Master), to achieve the one-click output of three concentrations. This study developed an innovative approach for the qualitative and simultaneous multi-ingredient quantitative analysis of flavonoids.
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Affiliation(s)
- Yuelian Qin
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Xinyu Zhong
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Caihong Liang
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Zhenwu Liang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Yunyuan Nong
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Lijun Deng
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Yue Guo
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jinfeng Li
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Meiling Zhang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Siqi Tang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Liuyan Wei
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Ying Yang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Yonghong Liang
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China
| | - Jinxia Wu
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China.
| | - Yeng Ming Lam
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore; Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 639798, Singapore.
| | - Zhiheng Su
- Pharmaceutical College, Guangxi Medical University, Nanning, 530021, China; Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, Nanning, 530021, China; Guangxi Beibu Gulf Marine Biomedicine Precision Development and High-value Utilization Engineering Research Center, Nanning, 530021, China; Guangxi Health Commission Key Laboratory of Basic Research on Antigeriatric Drugs, Nanning, 530021, China.
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Singh AK, Bhardwaj K. Mechanistic understanding of green synthesized cerium nanoparticles for the photocatalytic degradation of dyes and antibiotics from aqueous media and antimicrobial efficacy: A review. ENVIRONMENTAL RESEARCH 2024; 246:118001. [PMID: 38145730 DOI: 10.1016/j.envres.2023.118001] [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: 05/22/2023] [Revised: 12/10/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
In recent years, extensive research endeavors are being undertaken for synthesis of an efficient, economic and eco-friendly cerium oxide nanoparticles (CeO2 NPs) using plant extract mediated greener approach. A number of medicinal plants and their specific parts (flowers, bark, seeds, fruits, seeds and leaves) have been found to be capable of synthesizing CeO2 NPs. The specific key phytochemical constituents of plants such as alkaloids, terpenoids, phenolic acids, flavones and tannins can play significant role as a reducing, stabilizing and capping agents in the synthesis of CeO2 NPs from their respective precursor solution of metal ions. The CeO2 NPs are frequently using in diverse fields of science and technology including photocatalytic degradation of dyes, antibiotics as well as antimicrobial applications. In this review, the mechanism behind the green synthesis CeO2 NPs using plant entities are summarized along with discussion of analytical results from characterization techniques. An overview of CeO2 NPs for water remediation application via photocatalytic degradation of dyes and antibiotics are discussed. In addition, the mechanisms of antimicrobial efficacy of CeO2 NPs and current challenges for their sustainable application at large scale in real environmental conditions are discussed.
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Affiliation(s)
- Arun K Singh
- Department of Chemistry, M. M. Engineering College, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, Haryana, 133207, India.
| | - Kajal Bhardwaj
- Department of Chemistry, M. M. Engineering College, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala, Haryana, 133207, India
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Anand V, Pandey A. Synthesis and characterization of CeO 2 and SiO 2 nanoparticles and their effect on growth parameters and the antioxidant defense system in Vigna mungo L. Hepper. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100814-100827. [PMID: 37644264 DOI: 10.1007/s11356-023-29415-7] [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: 02/17/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023]
Abstract
Engineered nanoparticles (NPs) have recently attracted a lot of attention after being tested in various agricultural plants. This paper reports the green synthesis of CeO2 NPs and SiO2 NPs from leaf extracts of Nyctanthes arbor-tristis. The physical characteristics of the produced nanoparticles were then determined using UV-visible spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy, and Fourier transform infrared spectroscopy (FTIR). Furthermore, the interaction effects of cerium oxide NPs (C1, C2, and C3) and silicon dioxide NPs (S1, S2, and S3) at 10 mg/L on blackgram (Vigna mungo L.) were evaluated. CeO2 and SiO2 NPs treatments enhanced the growth performance of the plants by causing a decrease in superoxide radical (SOR) and H2O2 via improving antioxidant enzymes. These findings imply that the size and shape of CeO2 and SiO2 NPs provide defense against oxidative damage to the blackgram.
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Affiliation(s)
- Vandita Anand
- Department of Biotechnology, Motilal Nehru National Institute of Technology (MNNIT) Allahabad, Prayagraj, 211004, India
| | - Anjana Pandey
- Department of Biotechnology, Motilal Nehru National Institute of Technology (MNNIT) Allahabad, Prayagraj, 211004, India.
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Improving the Photocatalytic Performance of Porous Ceria under Visible Light Illumination via Mn Incorporation. Catalysts 2023. [DOI: 10.3390/catal13030523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Porous cerium oxide (ceria) nanoparticles were prepared with and without manganese (Mn) by using the flash combustion technique. Samples with different loadings (Ce/Mn ratio ranged from 100 to 10) were prepared by using a one-step process and water only as a solvent. Moreover, citric acid was utilized as a fuel in an aqueous medium, and the overall synthesis mixture was dried at 100 °C overnight and then calcinated at 550 °C for 3 h. The obtained final solid product was characterized by inductively coupled plasma (ICP), X-ray powder diffraction (XRD), diffuse reflectance ultraviolet-visible spectroscopy (DR-UV-Vis), and scanning electron microscopy (SEM), which was coupled with Energy Dispersive X-Ray Analysis (EDX), high resolution transmission electron microscopy (HR-TEM), and photoluminescence (PL) analysis. The characterization data showed that Mn ions were totally incorporated into the framework of ceria up to the applied loading. Under visible light illumination, the photocatalytic activity of the prepared samples was tested in the decolorization reaction of methyl green (MG) dye (wavelength greater than 425 nm). The results showed that increasing Mn content improved the photocatalytic activity of ceria. The sample with a Ce/Mn ratio of 10 performed 1.8 times better than bare porous ceria. Finally, the reusability of the best-performing sample was investigated in four consecutive runs without treatment, and slight deactivation was monitored after the fourth run.
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Butt A, Ali JS, Sajjad A, Naz S, Zia M. Biogenic synthesis of cerium oxide nanoparticles using petals of Cassia glauca and evaluation of antimicrobial, enzyme inhibition, antioxidant, and nanozyme activities. BIOCHEM SYST ECOL 2022. [DOI: 10.1016/j.bse.2022.104462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Rozhin P, Melchionna M, Fornasiero P, Marchesan S. Nanostructured Ceria: Biomolecular Templates and (Bio)applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2259. [PMID: 34578575 PMCID: PMC8467784 DOI: 10.3390/nano11092259] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 12/27/2022]
Abstract
Ceria (CeO2) nanostructures are well-known in catalysis for energy and environmental preservation and remediation. Recently, they have also been gaining momentum for biological applications in virtue of their unique redox properties that make them antioxidant or pro-oxidant, depending on the experimental conditions and ceria nanomorphology. In particular, interest has grown in the use of biotemplates to exert control over ceria morphology and reactivity. However, only a handful of reports exist on the use of specific biomolecules to template ceria nucleation and growth into defined nanostructures. This review focusses on the latest advancements in the area of biomolecular templates for ceria nanostructures and existing opportunities for their (bio)applications.
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Affiliation(s)
- Petr Rozhin
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (P.R.); (P.F.)
| | - Michele Melchionna
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (P.R.); (P.F.)
- Unit of Trieste, INSTM, 34127 Trieste, Italy
| | - Paolo Fornasiero
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (P.R.); (P.F.)
- Unit of Trieste, INSTM, 34127 Trieste, Italy
- Istituto di Chimica dei Composti Organometallici, Consiglio Nazionale delle Ricerche (ICCOM-CNR), 34127 Trieste, Italy
| | - Silvia Marchesan
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy; (P.R.); (P.F.)
- Unit of Trieste, INSTM, 34127 Trieste, Italy
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