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Kaur J, Renu, Kaur M, Aggarwal D, Kumar V, Tikoo K, Kaushik A, Singhal S. Unveiling the multifaceted applications of magnetically responsive chitosan capped ZnS QDs for sensing and annihilation of pharmaceutical drugs. Talanta 2024; 266:125084. [PMID: 37598444 DOI: 10.1016/j.talanta.2023.125084] [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: 05/07/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/22/2023]
Abstract
The persistence of active pharmaceutical ingredients in water bodies has lead to detrimental impacts on public health as well as deteriorated aquatic resources at breakneck pace. To address this, highly fluorescent chitosan capped ZnS QDs (CZS QDs) were integrated with nickel ferrite nanoparticles (NF NPs) through ultrasonic assisted method to yield a series of magnetically responsive CZS-xNF nanohybrids (x = 5, 10, 15 and 20 wt% of NF). The successful fabrication of nanohybrids were affirmed through various techniques such as Fourier transform infra-red spectroscopy (FT-IR), powder X-ray diffraction (XRD), X-ray photoelectron microscopy (XPS), high resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) and diffused reflectance spectroscopy (DRS). The dual applicability of CZS-xNF nanohybrid was witnessed for the detection of pharmaceutical waste by fluorescence sensing and their concomitant annihilation via visible light driven photodegradation reactions. The developed nanohybrid showed exceptional selectivity towards tetracycline antibiotics, with ultra-low limit of detection of 0.53 μM for tetracycline (TC) and 0.30 μM for minocycline (MC), respectively. The fluorescent sensor was also analysed for trace level detection of tetracyclines in real water samples that showed satisfactory recoveries of 90-106%, depicting practical applicability of sensor. Additionally, the excellent photocatalytic features of synthesized nanohybrid prompted their use in photodegradation of TC and MC and a superior photocatalytic performance was achieved in comparison to CZS QDs. The enhanced photocatalytic performance of CZS-xNF nanohybrid can be attributed to type-I charge transfer mechanism, which resulted in efficient charge separation and reduced photo-induced recombination rate of charge carriers. The nanohybrids were recyclable up to four cycles after being utilized in sensing and photocatalysis, thus offering a promising strategy for environmental remediation through synchronized sensing and extirpation of pharmaceutical waste.
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Affiliation(s)
- Jaspreet Kaur
- Energy Research Centre, Panjab University, Chandigarh, 160014, India
| | - Renu
- Energy Research Centre, Panjab University, Chandigarh, 160014, India
| | - Mandeep Kaur
- Department of Chemistry, Panjab University, Chandigarh, 160014, India
| | - Diksha Aggarwal
- Department of Chemistry, Panjab University, Chandigarh, 160014, India
| | - Vinod Kumar
- HR-TEM Facility Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, 160062, Punjab, India
| | - Kulbhushan Tikoo
- HR-TEM Facility Lab, Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), SAS Nagar, 160062, Punjab, India
| | - Anupama Kaushik
- Energy Research Centre, Panjab University, Chandigarh, 160014, India; Dr. Shanti Swarup Bhatnagar University Institute of Chemical Engineering and Technology (Dr. SSBUICET), Panjab University, Chandigarh, 160014, India.
| | - Sonal Singhal
- Department of Chemistry, Panjab University, Chandigarh, 160014, India.
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Chang SH, Salmi-Mani H, Roger P, Chang SM. A microgel of CdSe quantum dots for fluorescent bisphenol A detection. Mikrochim Acta 2023; 190:326. [PMID: 37495856 DOI: 10.1007/s00604-023-05905-w] [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: 03/27/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023]
Abstract
A fluorescent microgel for BPA detection has been successfully prepared by cross-linking linear poly(styrene-co-glycidyl methacrylate) (poly (STY-co-GMA)) with L-cysteine-capped CdSe quantum dots (Lcys-caped CdSe QDs). The microgel contained specific binding sites created by the covalent grafting of the copolymer onto the QDs via the GMA units, allowing for selective trapping of BPA molecules through π-π and hydrogen bond interactions with phenyl, carboxylic, and amine groups. After binding, electron transfer from the QDs to the analyte quenched the fluorescence at a wavelength of 547 nm when excited at 400 nm. The rational compositional and structural design allows the microgel to accurately detect BPA concentrations over a wide dynamic range of 1.0×10-1 to 1.0×105 μg/L with a low detection limit (7.0×10-2 to 8.0×10-2 μg/L) in deionized, drinking, and tap waters within just 2.0 min. On top of that, the sensitivity for BPA detection was 2.0-4.6 times higher than that of the other 3 structural analogues, even molecular imprinting was not involved. The influence of the STY/GMA compositions in the copolymers and environmental conditions, including pH and ionic strength, on the sensing performance was determined. Moreover, the sensing mechanism and the selectivity with respect to the molecular features were elucidated.
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Affiliation(s)
- Shu-Han Chang
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182, Université Paris-Saclay, CNRS, 91405, Orsay, France
| | - Hanène Salmi-Mani
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182, Université Paris-Saclay, CNRS, 91405, Orsay, France
| | - Philippe Roger
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), UMR 8182, Université Paris-Saclay, CNRS, 91405, Orsay, France.
| | - Sue-Min Chang
- Institute of Environmental Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300093, Taiwan.
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3
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Lv Y, Fan J, Zhao M, Wu R, Li LS. Recent advances in quantum dot-based fluorescence-linked immunosorbent assays. NANOSCALE 2023; 15:5560-5578. [PMID: 36866747 DOI: 10.1039/d2nr07247e] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Fluorescence immunoassays have been given considerable attention among the quantitative detection methods in the clinical medicine and food safety testing fields. In particular, semiconductor quantum dots (QDs) have become ideal fluorescent probes for highly sensitive and multiplexed detection due to their unique photophysical properties, and the QD fluorescence-linked immunosorbent assay (FLISA) with high sensitivity, high accuracy, and high throughput has been greatly developed recently. In this manuscript, the advantages of applying QDs to FLISA platforms and some strategies for their application to in vitro diagnostics and food safety are discussed. Given the rapid development of this field, we classify these strategies based on the combination of QD types and detection targets, including traditional QDs or QD micro/nano-spheres-FLISA, and multiple FLISA platforms. In addition, some new sensors based on the QD-FLISA are introduced; this is one of the hot spots in this field. The current focus and future direction of QD-FLISA are also discussed, which provides important guidance for the further development of FLISA.
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Affiliation(s)
- Yanbing Lv
- Key Lab for Special Functional Materials of the Ministry of Education, and School of Materials, Henan University, Kaifeng, 475004, China.
| | - Jinjin Fan
- Key Lab for Special Functional Materials of the Ministry of Education, and School of Materials, Henan University, Kaifeng, 475004, China.
| | - Man Zhao
- Key Lab for Special Functional Materials of the Ministry of Education, and School of Materials, Henan University, Kaifeng, 475004, China.
| | - Ruili Wu
- Key Lab for Special Functional Materials of the Ministry of Education, and School of Materials, Henan University, Kaifeng, 475004, China.
| | - Lin Song Li
- Key Lab for Special Functional Materials of the Ministry of Education, and School of Materials, Henan University, Kaifeng, 475004, China.
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Molecular Imprinted ZnS Quantum Dots-Based Sensor for Selective Sulfanilamide Detection. Polymers (Basel) 2022; 14:polym14173540. [PMID: 36080615 PMCID: PMC9459902 DOI: 10.3390/polym14173540] [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: 07/30/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Combining molecular imprinted polymers and water-soluble manganese-doped zinc sulfide quantum dots (Mn2+: ZnS QDs), a new molecule imprinted polymers-based fluorescence sensor was designed. The molecule imprinted quantum dots (MIP@QDs) were constructed by coating molecular imprinted polymers layer on the surface of ZnS: Mn2+ QDs using the surface molecular imprinting technology. The developed MIP@QDs-based sensor was used for rapid and selective fluorescence sensing of sulfanilamide in water samples. The binding experiments showed that the MIP@QDs has rapid fluorescent responses, which are highly selective of and sensitive to the detection of sulfanilamide. The respond time of the MIP@QDs was 5 min, and the imprinting factor was 14.8. Under optimal conditions, the developed MIP@QDs-based sensor shows a good linearity (R2 = 0.9916) over a sulfanilamide concentration range from 2.90 × 10−8 to 2.90 × 10−6 mol L−1, with a detection limit of 3.23 × 10−9 mol L−1. Furthermore, the proposed MIP@QDs-based sensor was applied to the determination of sulfanilamide in real samples, with recoveries of 96.80%–104.33%, exhibiting good recyclability and stability. Experimental results showed that the prepared MIP@QDs has the potential to serve as a selective and sensitive sensor for the fluorescence sensing of sulfonamides in water samples.
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Wan S, Xu O, Song H, Yang J, Zhu X. Imidazole ionic liquid functionalized ZIF-67 molecularly imprinted solid-phase extraction coupled with high performance liquid chromatography for analysis of bisphenol A. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1904-1912. [PMID: 35521687 DOI: 10.1039/d2ay00359g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An effective method based on an imidazole ionic liquid functionalized ZIF-67 molecularly imprinted solid-phase extractant (ZIF-67@[Bmim][Br]@MIP) coupled with high performance liquid chromatography (HPLC) for the separation/analysis of bisphenol A (BPA) was established. ZIF-67@[Bmim][Br]@MIP was characterized by FTIR, XRD, SEM, TEM and BET. Several important factors, such as pH, amount of extractant, extraction time, and types of eluents were investigated in detail. Under the optimal conditions, the linear range of the method was 0.01-20.00 μg mL-1, the detection limit was 5.0 ng mL-1, and the linear correlation was good (R2 = 0.9994). The detection of BPA in mineral water bottles, milk cartons and milk tea cups proved that the method was simple and effective, and could be used to separate and analyze BPA in real samples.
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Affiliation(s)
- Shuyu Wan
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, 225002, China.
| | - Ouwen Xu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, 225002, China.
| | - Hanyang Song
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, 225002, China.
| | - Jing Yang
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, 225002, China.
| | - Xiashi Zhu
- College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou, 225002, China.
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Fluorescent Polymers Conspectus. Polymers (Basel) 2022; 14:polym14061118. [PMID: 35335449 PMCID: PMC8955759 DOI: 10.3390/polym14061118] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 02/04/2023] Open
Abstract
The development of luminescent materials is critical to humankind. The Nobel Prizes awarded in 2008 and 2010 for research on the development of green fluorescent proteins and super-resolved fluorescence imaging are proof of this (2014). Fluorescent probes, smart polymer machines, fluorescent chemosensors, fluorescence molecular thermometers, fluorescent imaging, drug delivery carriers, and other applications make fluorescent polymers (FPs) exciting materials. Two major branches can be distinguished in the field: (1) macromolecules with fluorophores in their structure and (2) aggregation-induced emission (AIE) FPs. In the first, the polymer (which may be conjugated) contains a fluorophore, conferring photoluminescent properties to the final material, offering tunable structures, robust mechanical properties, and low detection limits in sensing applications when compared to small-molecule or inorganic luminescent materials. In the latter, AIE FPs use a novel mode of fluorescence dependent on the aggregation state. AIE FP intra- and intermolecular interactions confer synergistic effects, improving their properties and performance over small molecules aggregation-induced, emission-based fluorescent materials (AIEgens). Despite their outstanding advantages (over classic polymers) of high emission efficiency, signal amplification, good processability, and multiple functionalization, AIE polymers have received less attention. This review examines some of the most significant advances in the broad field of FPs over the last six years, concluding with a general outlook and discussion of future challenges to promote advancements in these promising materials that can serve as a springboard for future innovation in the field.
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Recent advances of magnetic molecularly imprinted materials: From materials design to complex sample pretreatment. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2021.116514] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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8
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Yu M, Li H, Xie J, Xu Y, Lu X. A descriptive and comparative analysis on the adsorption of PPCPs by molecularly imprinted polymers. Talanta 2022; 236:122875. [PMID: 34635255 DOI: 10.1016/j.talanta.2021.122875] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/24/2021] [Accepted: 09/09/2021] [Indexed: 12/27/2022]
Abstract
Molecularly imprinted polymers (MIPs) have aroused great attention as a new material for the removal or detection of pharmaceuticals and personal care products (PPCPs). However, it is not clear about the superiority and deficiency of MIPs in the process of removing or detecting PPCPs. Herein, we evaluated the performance of MIPs in the aspects of adsorption capacity, binding affinity, adsorption rate, and compatibility to other techniques, and proposed ways to improve its performance. Without regard to the selectivity of MIPs, for the PPCPs adsorption, MIPs surprisingly did not always perform better than the conventional adsorbents (non-imprinted polymers, biochar, activated carbon and resin), indicating that MIPs should be used where selectivity is crucial, for example recovery of specific PPCPs in an environmental sample extraction process. Compared to the traditional solid-phase extraction for PPCPs detection pretreatment, the usage of MIPs as substitute extraction agents could obtain high selectivity of specific substance, due to the uniformity and effectiveness of the specific sites. A promising development in the future would be to combine other simple and rapid quantitative technologies, such as electro/photochemical sensor and catalytic degradation, to realize rapid and sensitive detection of trace PPCPs.
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Affiliation(s)
- Miaomiao Yu
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution and Tianjin International Joint Research Center for Environmental Biogeochemical Technology, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Haixiao Li
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution and Tianjin International Joint Research Center for Environmental Biogeochemical Technology, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Jingyi Xie
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution and Tianjin International Joint Research Center for Environmental Biogeochemical Technology, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Yan Xu
- Department of Soils and Agri-Food Engineering, Paul Comtois Bldg., Laval University, Quebec City, QC, G1K 7P4, Canada
| | - Xueqiang Lu
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution and Tianjin International Joint Research Center for Environmental Biogeochemical Technology, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, China.
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A nanohybrid magnetic sensing probe for levofloxacin determination integrates porous graphene, selective polymer and graphene quantum dots. J Pharm Biomed Anal 2021; 205:114316. [PMID: 34411981 DOI: 10.1016/j.jpba.2021.114316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/28/2021] [Accepted: 08/08/2021] [Indexed: 11/21/2022]
Abstract
A nanohybrid magnetic fluorescent sensing probe was designed and fabricated for ultrasensitive and selective determination of levofloxacin. The probe integrated porous graphene (PGr), magnetite (Fe3O4) nanoparticles and graphene quantum dots (GQDs) into selective molecularly imprinted polymer (MIP). The developed probe was sensitive, selective, and its binding ability enriched levofloxacin in complex samples. The fabrication strategy was evaluated to achieve the best performance and the synthesized sensing probe was characterized. In the best condition, the fluorescence emission of the probe was quenched linearly from 0.10 to 25.0 μg L-1 of levofloxacin and the limit of detection was 0.03 μg L-1. The quenching of fluorescence was not affected by the analog compounds ciprofloxacin, lomefloxacin, marbofloxacin and sarafloxacin. The imprinting factor of the developed nanohybrid sensing probe was 4.26. The developed probe was utilized to detect levofloxacin in milk and recoveries between 91.8 % and 100.5 % were achieved with RSDs <6.5 %. Analysis with the optosensor provided the same results as HPLC analysis but the optosensor was more sensitive, less expensive, simpler and more rapid.
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10
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Chen RN, Kang SH, Li J, Lu LN, Luo XP, Wu L. Comparison and recent progress of molecular imprinting technology and dummy template molecular imprinting technology. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4538-4556. [PMID: 34570126 DOI: 10.1039/d1ay01014j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Molecular imprinting technology for the preparation of polymers with specific molecular recognition function had become one of the current research hotspots. It has been widely applied in chromatographic separation, antibody and receptor mimetics, solid-phase extraction, bio-sensors, and other fields in the last decades. In this study, molecular imprinting technology was summarized from the points of templates and dummy templates, and four typical target analytes were selected to compare the differences between templates and dummy templates. The current status and prospects of molecular imprinting technology were also proposed.
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Affiliation(s)
| | | | - Jia Li
- Northwest Minzu University, China.
| | - Li-Na Lu
- Northwest Minzu University, China.
| | | | - Lan Wu
- Northwest Minzu University, China.
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11
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Yang L, Ke H, Yao H, Jiang W. Effective and Rapid Removal of Polar Organic Micropollutants from Water by Amide Naphthotube‐Crosslinked Polymers. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106998] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Liu‐Pan Yang
- Shenzhen Grubbs Institute Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Academy of Advanced Interdisciplinary Studies Southern University of Science and Technology Xueyuan Blvd 1088 Shenzhen 518055 China
| | - Hua Ke
- Shenzhen Grubbs Institute Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Academy of Advanced Interdisciplinary Studies Southern University of Science and Technology Xueyuan Blvd 1088 Shenzhen 518055 China
| | - Huan Yao
- Shenzhen Grubbs Institute Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Academy of Advanced Interdisciplinary Studies Southern University of Science and Technology Xueyuan Blvd 1088 Shenzhen 518055 China
| | - Wei Jiang
- Shenzhen Grubbs Institute Department of Chemistry Guangdong Provincial Key Laboratory of Catalysis Academy of Advanced Interdisciplinary Studies Southern University of Science and Technology Xueyuan Blvd 1088 Shenzhen 518055 China
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12
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Yang LP, Ke H, Yao H, Jiang W. Effective and Rapid Removal of Polar Organic Micropollutants from Water by Amide Naphthotube-Crosslinked Polymers. Angew Chem Int Ed Engl 2021; 60:21404-21411. [PMID: 34227192 DOI: 10.1002/anie.202106998] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/16/2021] [Indexed: 12/29/2022]
Abstract
It is challenging to remove polar organic micropollutants from water through adsorption-mediated processes. Macrocycle-crosslinked polymers were recently shown to be effective adsorbents for nonpolar or charged organic micropollutants through specific host-guest binding, but are rarely used for the treatment of neutral and polar organic micropollutants. This is due to the challenge of recognizing polar molecules in water by macrocyclic hosts. In this research, we report two amide naphthotube-crosslinked polymers which can effectively and rapidly adsorb a wide scope of polar organic micropollutants from water through biomimetic molecular recognition. Amide naphthotubes possess hydrogen bonding sites in their deep hydrophobic cavities and can effectively bind polar organic micropollutants in water through the hydrophobic effects and shielded hydrogen bonds. The cross-linked polymers containing amide naphthotubes are even able to remove a complex mixture of organic micropollutants from water and the used materials can be easily regenerated through washing with MeOH or EtOH. This research provides a solution for the treatment of polar organic micropollutants by using biomimetic molecular recognition in water.
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Affiliation(s)
- Liu-Pan Yang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Academy of Advanced Interdisciplinary Studies, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Hua Ke
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Academy of Advanced Interdisciplinary Studies, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Huan Yao
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Academy of Advanced Interdisciplinary Studies, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Wei Jiang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Academy of Advanced Interdisciplinary Studies, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
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Xu Z, Wang R, Chen Y, Chen M, Zhang J, Cheng Y, Xu J, Chen W. Three-dimensional assembly and disassembly of Fe 3O 4-decorated porous carbon nanocomposite with enhanced transversal relaxation for magnetic resonance sensing of bisphenol A. Mikrochim Acta 2021; 188:90. [PMID: 33598733 DOI: 10.1007/s00604-021-04718-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 01/18/2021] [Indexed: 02/02/2023]
Abstract
The design and construction of a novel magnetic resonance sensor (MRS) is presented for bisphenol A (BPA) detection. The MRS has been built based on the core component of magnetic Fe3O4 nanoparticles (~ 40 nm), which were uniformly distributed in nanoporous carbon (abbreviated as Fe3O4@NPC). The synthesis was derived from the calcination of the metal organic framework (MOF) precursor of Fe-MIL-101 at high temperature. Fe3O4@NPC was confirmed with enhanced transversal relaxation with r2 value of 118.2 mM-1 s-1, which was around 1.7 times higher than that of the naked Fe3O4 nanoparticle. This enhancement is attributed to the excellent proton transverse relaxation rate of Fe3O4@NPC caused by the reduced self-diffusion coefficient of water molecules in the vicinity of Fe3O4 nanoparticles in the nanoporous carbon. BPA antibody (Ab) and antigen (Ag)-ovalbumin (OVA) were immobilized onto the Fe3O4@NPC to form Ab-Fe3O4@NPC and Ag-Fe3O4@NPC, respectively. These two composites can cause the three-dimensional assembly of Fe3O4@NPC via immunological recognition. The presence of BPA can compete with antigen-OVA to combine with Ab-Fe3O4@NPC, thereby breaking the assembly process (disassembly). The difference in the change of the T2 value before and after adding BPA can thus be used to monitor BPA. The proposed MRS not only revealed a wide linear range of BPA concentration from 0.05 to 50 ng mL-1 with an extremely low detection limit of 0.012 ng mL-1 (S/N = 3), but also displayed high selectivity towards matrix interferences. The recoveries of BPA ranged from 95.6 to 108.4% for spiked tea π, and 93.4 to 104.7% for spiked canned oranges samples, respectively, and the RSD (n = 3) was less than 4.4% for 3 successive assays. The versatility of Fe3O4@NPC with customized relaxation responses provides the possibility for the adaptation of magnetic resonance platforms for food safety development. The magnetic Fe3O4 nanoparticles are uniformly dispersed in the nanoporous carbon (Fe3O4@NPC), which derived from the calcinating of the metal organic framework (MOF) precursor of Fe-MIL-101. And the magnetic Fe3O4@NPCs are adopted for the construction of magnetic resonance sensor (MRS) for bisphenol A (BPA) detection.
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Affiliation(s)
- Zhou Xu
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Rong Wang
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Yanqiu Chen
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Maolong Chen
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Jian Zhang
- College of Automotive and Mechanical Engineering, Changsha University of Science & Technology, Changsha, 410114, China
| | - Yunhui Cheng
- College of Chemistry and Food Engineering, Changsha University of Science & Technology, Changsha, 410114, China.
| | - Jianguo Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Wei Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China.
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Yang JC, Park J. Molecular Imprinting of Bisphenol A on Silica Skeleton and Gold Pinhole Surfaces in 2D Colloidal Inverse Opal through Thermal Graft Copolymerization. Polymers (Basel) 2020; 12:E1892. [PMID: 32842670 PMCID: PMC7564607 DOI: 10.3390/polym12091892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 11/16/2022] Open
Abstract
This study successfully fabricated BPA-imprinted poly(4-vinylpyridine-co-ethylene glycol dimethacrylate) (poly(4-VP-co-EGDMA)) quartz crystal microbalance (MIP-QCM) sensors on a silica skeleton surface and gold pinholes of silica inverse opal through surface-initiated atom transfer radical polymerization (SI-ATRP). The sensing features of the two MIP films on the structured silica surface and nano-scale local gold surface were investigated by measuring the resonant frequency change (∆f) in QCM sensors. The ∆f values for the p-MIP (MIP on gold pinholes) and s-MIP films (MIP on silica skeleton surface) were obtained with the ∆f value of -199 ± 4.9 Hz and -376 ± 19.1 Hz, respectively, whereas for p-/s-NIP films, the ∆f values were observed to be -115 ± 19.2 Hz and -174 ± 5.8 Hz by the influence of non-specific adsorption on the surface of the films. Additionally, the imprinting factor (IF) appeared to be 1.72 for p-MIP film and 2.15 for s-MIP film, and the limits of quantitation (LOQ) and detection (LOD) were 54.924 and 18.125 nM (p-MIP film) and 38.419 and 12.678 nM (s-MIP film), respectively. Using the Freundlich isotherm model, the binding affinity of the BPA-imprinted films was evaluated. This was measured in an aqueous solution of BPA whose concentration ranged between 45 and 225 nM. It was found that the p-MIP film (m = 0.39) was relatively more heterogeneous than the s-MIP film (m = 0.33), both of which were obtained from the slope of the linear regressions. Finally, the selectivity of the MIP-QCM sensors for BPA detection was determined by measuring the effect of other analogous chemicals, such as bisphenol F (BPF), bisphenol AP (BPAP), and bisphenol B (BPB), in aqueous solutions. The selectivity coefficients (k*) of the two MIP films had ~1.9 for the p-MIP and ~2.3 for the s-MIP films, respectively. The results reveal that, with respect to signal amplification of the QCM sensors, the s-MIP film has better sensing features and faster detection responses than the p-MIP film.
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Affiliation(s)
- Jin Chul Yang
- School of Applied Chemical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
| | - Jinyoung Park
- School of Applied Chemical Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
- Department of Polymer Science & Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea
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15
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The Recent Advances of Fluorescent Sensors Based on Molecularly Imprinted Fluorescent Nanoparticles for Pharmaceutical Analysis. Curr Med Sci 2020; 40:407-421. [PMID: 32681246 PMCID: PMC7366466 DOI: 10.1007/s11596-020-2195-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/22/2020] [Indexed: 12/16/2022]
Abstract
Fluorescent nanoparticles have good chemical stability and photostability, controllable optical properties and larger stokes shift. In light of their designability and functionability, the fluorescent nanoparticles are widely used as the fluorescent probes for diverse applications. To enhance the sensitivity and selectivity, the combination of the fluorescent nanoparticles with the molecularly imprinted polymer, i.e. molecularly imprinted fluorescent nanoparticles (MIFN), was an effective way. The sensor based on MIFN (the MIFN sensor) could be more compatible with the complex sample matrix, which was especially widely adopted in medical and biological analysis. In this mini-review, the construction method, detective mechanism and types of MIFN sensors are elaborated. The current applications of MIFN sensors in pharmaceutical analysis, including pesticides/herbicide, veterinary drugs/drugs residues and human related proteins, are highlighted based on the literature in the recent three years. Finally, the research prospect and development trend of the MIFN sensor are forecasted.
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16
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Wang S, Li W, Sun P, Xu Z, Ding Y, Xu W, Xu W, Gu J. Selective extraction of myoglobin from human serum with antibody-biomimetic magnetic nanoparticles. Talanta 2020; 219:121327. [PMID: 32887062 DOI: 10.1016/j.talanta.2020.121327] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 01/26/2023]
Abstract
Myoglobin (Mb) is an ideal biochemical marker for the diagnosis of certain diseases caused by damage to heart muscle or skeletal muscle. Nevertheless, serum myoglobin levels are usually very low while the interference components in real sample are extremely abundent. Hence, it is of great clinical significance to establish an effective method for Mb targeting. To obtain desired selectivity, targeting biomolecules like antibody and aptamer are essential to 'the state of the art'. However, such biomolecules suffer from many disadvantages, such as hard to prepare, susceptible to protease degradation, and high cost. Thus, novel alternatives that can overcome these issues are highly desirable. Herein, we pioneered a template-anchored controllable surface imprinting strategy for selective extraction of Mb from human serum via combining with facile magnetic separation of magnetic nanoparticles (MNPs). Mb-imprinted MNPs, as antibody-biomimetic materials, were prepared using amino group-modified MNPs as substrates and water-soluble self-polymerizable dopamine as imprinting monomer. The optimized imprinting time was 70 min, giving an optimal performance with high practical imprinting efficiency (up to 41%), high imprinting factor (4.2), high binding affinity (Kd=(2.05 ± 0.09) × 10-5 M), as well as excellent recognition selectivity. Moreover, compared to bare MNPs, Mb-imprinted MNPs possessed markedly better pH tolerance. Finally, the selective extraction of Mb from human serum sample by Mb-imprinted MNPs was experimentally confirmed and the recoveries of Mb in spiked serum ranged from (91.12 ± 6.81)% to (107.99 ± 7.76)%, indicating that the Mb-imprinted MNPs could be competent for the selective analysis of Mb in real bio-samples like human serum with high precision and reliability.
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Affiliation(s)
- Shuangshou Wang
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China; Engineering Research Institute of AHUT, Anhui University of Technology, PR China.
| | - Wenzhi Li
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Panwen Sun
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Zhongqiu Xu
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Yuwen Ding
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Wenjing Xu
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Wei Xu
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China
| | - Jing Gu
- School of Chemistry and Chemical Engineering, Anhui University of Technology. #328 Huolishan Avenue, Yushan District, Maanshan, Anhui, 243032, PR China.
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17
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Uchiyama S. The Magical Combination of Polymer Science and Fluorometry. Polymers (Basel) 2020; 12:polym12040876. [PMID: 32290202 PMCID: PMC7240674 DOI: 10.3390/polym12040876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 04/08/2020] [Indexed: 01/02/2023] Open
Affiliation(s)
- Seiichi Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
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