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Phimmasone S, Boonsri P, Siangproh W, Ratanawimarnwong N, Jittangprasert P, Mantim T, Limchoowong N, Songsrirote K. Carbon dots derived from citric acid and urea as fluorometric probe for determining melamine contamination in infant formula sample. Methods Appl Fluoresc 2023; 12:015003. [PMID: 37647911 DOI: 10.1088/2050-6120/acf547] [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: 04/24/2023] [Accepted: 08/30/2023] [Indexed: 09/01/2023]
Abstract
Melamine has been intentionally added into food products to increase the protein count at less cost, especially in dairy products for infant resulting in serious adverse effects on health of consumers. Therefore, this study aimed to develop a method to quantify melamine in dairy products based on the change of fluorescent properties of carbon dots (CDs) as sensing probe. CDs with green-fluorescent emission were synthesized from citric acid and urea under microwave irradiation. The synthesized CDs emitted fluorescence at the maximum wavelength of 538 nm with excitation wavelength of 410 nm. Thus, they provided high sensitivity and selectivity on melamine detection by which fluorescent emission of the CDs was increasingly quenched upon increasing melamine concentrations. Optimal conditions for melamine determination using the CDs was under pH 6, volume ratio between CDs and sample of 2:8 and reaction time of 15 min. The developed method provided high precision of melamine determination with less than 5% of %RSD (n = 5), wide detection range from 1.0 to 200.0 ppm, and high sensitivity with limit of detection (LOD) of 0.47 ppm and limit of quantification (LOQ) of 1.56 ppm, which is within the regulated level by the Food and Drug Administration of the United States for melamine in dairy products. Several analytical characterization techniques were conducted to elucidate the reaction mechanism between CDs and melamine, and the hydrogen bonding interaction was proposed.
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Affiliation(s)
- Souliyanh Phimmasone
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
| | - Pornthip Boonsri
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
| | - Weena Siangproh
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Nuanlaor Ratanawimarnwong
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Piyada Jittangprasert
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Thitirat Mantim
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Nunticha Limchoowong
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Kriangsak Songsrirote
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand
- Center of Excellence in Agricultural Innovation and Food Safety, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
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Ma J, Zhang X, Huang X, Gong J, Xie Z, Li P, Chen Y, Liao Q. Advanced porous organic materials for sample preparation in pharmaceutical analysis. J Sep Sci 2023; 46:e2300205. [PMID: 37525342 DOI: 10.1002/jssc.202300205] [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: 03/30/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 08/02/2023]
Abstract
The development of novel sample preparation media plays a crucial role in pharmaceutical analysis. To facilitate the extraction and enrichment of pharmaceutical molecules in complex samples, various functionalized materials have been developed and prepared as adsorbents. Recently, some functionalized porous organic materials have become adsorbents for pharmaceutical analysis due to their unique properties of adsorption and recognition. These advanced porous organic materials, combined with consequent analytical techniques, have been successfully used for pharmaceutical analysis in complex samples such as environmental and biological samples. This review encapsulates the progress of advanced porous materials for pharmaceutical analysis including pesticides, antibiotics, chiral drugs, and other compounds in the past decade. In addition, we also address the limitations and future trends of these porous organic materials in pharmaceutical analysis.
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Affiliation(s)
- Juanqiong Ma
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xingyuan Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinyu Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jing Gong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhiyong Xie
- School of Pharmaceutical Sciences, Sun Yat-sen University, Shenzhen, China
| | - Pei Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanlong Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qiongfeng Liao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
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Yu Q, Wang Q, Feng T, Wang L, Fan Z. A Novel Functionalized MoS 2-Based Coating for Efficient Solar Desalination. MATERIALS (BASEL, SWITZERLAND) 2023; 16:3105. [PMID: 37109940 PMCID: PMC10141543 DOI: 10.3390/ma16083105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Molybdenum disulfide (MoS2) has emerged as a promising photothermal material for solar desalination. However, its limitation in integrating with organic substances constrains its application because of the lack of functional groups on its surface. Here, this work presents a functionalization approach to introduce three different functional groups (-COOH -OH -NH2) on the surface of MoS2 by combining them with S vacancies. Subsequently, the functionalized MoS2 was coated on the polyvinyl alcohol-modified polyurethane sponge to fabricate a MoS2-based double-layer evaporator through an organic bonding reaction. Photothermal desalination experiments show that the functionalized material has higher photothermal efficiency. The evaporation rate of the hydroxyl functionalized the MoS2 evaporator evaporation rate is 1.35 kg m-2 h-1, and the evaporation efficiency is 83% at one sun. This work provides a new strategy for efficient, green, and large-scale utilization of solar energy by MoS2-based evaporators.
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Affiliation(s)
- Qinghong Yu
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- Center of Green Control and Remediation Technologies for Environmental Pollution, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Qingmiao Wang
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- Center of Green Control and Remediation Technologies for Environmental Pollution, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Tao Feng
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- Center of Green Control and Remediation Technologies for Environmental Pollution, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Li Wang
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- Center of Green Control and Remediation Technologies for Environmental Pollution, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Zhixuan Fan
- College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
- Center of Green Control and Remediation Technologies for Environmental Pollution, Wuhan University of Science and Technology, Wuhan 430081, China
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Matias PMC, Murtinho D, Valente AJM. Triazine-Based Porous Organic Polymers: Synthesis and Application in Dye Adsorption and Catalysis. Polymers (Basel) 2023; 15:polym15081815. [PMID: 37111962 PMCID: PMC10143168 DOI: 10.3390/polym15081815] [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: 03/17/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
The scientific community has been developing promising materials to increase the sustainability and efficiency of production processes and pollutant environmental remediation strategies. Porous organic polymers (POPs) are of special interest, as they are insoluble custom-built materials at the molecular level, endowed with low densities and high stability, surface areas, and porosity. This paper describes the synthesis, characterization, and performance of three triazine-based POPs (T-POPs) in dye adsorption and Henry reaction catalysis. T-POPs were prepared by a polycondensation reaction between melamine and a dialdehyde (terephthalaldehyde (T-POP1) or isophthalaldehyde derivatives with a hydroxyl group (T-POP2) or both a hydroxyl and a carboxyl group (T-POP3)). The crosslinked and mesoporous polyaminal structures, with surface areas between 139.2 and 287.4 m2 g-1, positive charge, and high thermal stability, proved to be excellent methyl orange adsorbents, removing the anionic dye with an efficiency >99% in just 15-20 min. The POPs were also effective for methylene blue cationic dye removal from water, reaching efficiencies up to ca. 99.4%, possibly due to favorable interactions via deprotonation of T-POP3 carboxyl groups. The modification of the most basic polymers, T-POP1 and T-POP2, with copper(II) allowed the best efficiencies in Henry reactions catalysis, leading to excellent conversions (97%) and selectivities (99.9%).
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Affiliation(s)
- Pedro M C Matias
- Department of Chemistry, CQC-IMS, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Dina Murtinho
- Department of Chemistry, CQC-IMS, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Artur J M Valente
- Department of Chemistry, CQC-IMS, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
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Ma S, He Z, Teng Q, Wang R. One-pot synthesis of magnetic sulfonated covalent organic polymer for extraction of protoberberine alkaloids in herbs and human plasma. J Sep Sci 2023; 46:e2200613. [PMID: 36446729 DOI: 10.1002/jssc.202200613] [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: 07/28/2022] [Revised: 10/16/2022] [Accepted: 11/19/2022] [Indexed: 11/23/2022]
Abstract
A novel magnetic sulfonated covalent organic polymer was prepared for magnetic solid-phase extraction of protoberberine alkaloids. The magnetic sulfonated covalent organic polymer was rapidly synthesized under mild conditions. The physicochemical properties of the prepared materials were characterized by Fourier-transform infrared spectrometry, transmission electron microscopy, and X-ray photoelectron spectroscopy. Several extraction parameters were systematically investigated, including desorption time, pH of sample solution, acetonitrile content, acetic acid content in the eluent, extraction time, and sample volume. By coupling magnetic solid-phase extraction and high-performance liquid chromatography, an efficient and sensitive method for the extraction and determination of protoberberine alkaloids in complex samples was developed. The proposed method showed great linearity (r > 0.9989), low limits of detection (0.2-0.3 ng/ml), and high precision (relative standard deviations ≤ 5.74%). The proposed method was further applied to the analysis of protoberberine alkaloids in Cortex phellodendri and human plasma samples. The recoveries were 91.50%-110.31% with relative standard deviations less than 6.63% in Cortex phellodendri and 96.12%-111.20% with relative standard deviations lower than 5.56% in plasma samples.
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Affiliation(s)
- Shumin Ma
- College of Pharmacy, Guilin Medical University, Guilin, P. R. China
| | - Zhenfu He
- College of Pharmacy, Guilin Medical University, Guilin, P. R. China
| | - Qiuxiu Teng
- College of Pharmacy, Guilin Medical University, Guilin, P. R. China
| | - Rong Wang
- College of Pharmacy, Guilin Medical University, Guilin, P. R. China
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Zhang C, Yuan H, Lu Z, Li Y, Zhao L, Zhang Z, Li G. β
‐ketoenamine‐linked covalent organic framework absorbent for online micro‐solid phase extraction of trace levels bisphenols in plastic samples. J Sep Sci 2022; 45:1493-1501. [DOI: 10.1002/jssc.202100905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 11/06/2022]
Affiliation(s)
| | - Hongmei Yuan
- School of Pharmacy Zunyi Medical University Zunyi 563000 China
| | - Zeyi Lu
- School of Pharmacy Zunyi Medical University Zunyi 563000 China
| | - Yuhuang Li
- School of Pharmacy Zunyi Medical University Zunyi 563000 China
| | - Lirong Zhao
- School of Pharmacy Zunyi Medical University Zunyi 563000 China
| | - Zhuomin Zhang
- School of Chemistry Sun Yat‐sen University Guangzhou 510006 China
| | - Gongke Li
- School of Chemistry Sun Yat‐sen University Guangzhou 510006 China
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