1
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Zhang S, Song G, Yang Z, Kang K, Liu X. A label-free fluorescence aptamer sensor for point-of-care serotonin detection. Talanta 2024; 277:126363. [PMID: 38850806 DOI: 10.1016/j.talanta.2024.126363] [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: 03/18/2024] [Revised: 05/06/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Serotonin, a pivotal neurotransmitter regulating various physiological functions, plays a crucial role in disease diagnosis, necessitating precise monitoring of its levels in biological fluids for accurate assessment. Aptamers, known for their high specificity and affinity, have emerged as innovative molecular probes for serotonin analysis. However, existing serotonin aptamer sensing platforms exhibit limitations in terms of portability and rapid detection capabilities. In this study, we introduce a novel, portable, label-free serotonin aptamer sensor utilizing a dye replacement strategy, achieving a short sample-to-result turnaround time and convenient signal readout through a smartphone. The performance of this aptamer sensor was thoroughly assessed across diverse physiological media, demonstrating robust stability in buffer, urine, and serum. Importantly, the detection limit was in the nanomolar range, emphasizing its suitability for the rapid, sensitive, and user-friendly detection of serotonin. This research pioneers an approach for the development of a point-of-care testing (POCT) system for serotonin with practical implications, particularly in resource-limited settings.
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Affiliation(s)
- Shuyuan Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Gege Song
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Zhan Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China
| | - Kai Kang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China; School of Pharmacy, Hebei Medical University, Shijiazhuang, 050017, PR China.
| | - Xiaoqing Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, PR China.
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2
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Yang T, Duan H, Nian H, Wang P, Yan C, Cao F, Li Q, Cao L. Unraveling the structure-chirality sensing relationship between achiral anthracene-based tetracationic nanotubes and nucleosides in aqueous host-guest complexation. Biosens Bioelectron 2024; 258:116342. [PMID: 38705071 DOI: 10.1016/j.bios.2024.116342] [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: 01/29/2024] [Revised: 03/28/2024] [Accepted: 04/26/2024] [Indexed: 05/07/2024]
Abstract
In biological systems, nucleosides play crucial roles in various physiological processes. In this study, we designed and synthesized four achiral anthracene-based tetracationic nanotubes (1-4) as artificial hosts and chiroptical sensors for nucleosides in aqueous media. Notably, different nanotubes exhibit varied chirality sensing on circular dichroism (CD)/circularly polarized luminescence (CPL) spectra through the host-guest complexation, which prompted us to explore the factors influencing their chiroptical responses. Through systematic host-guest experiments, the structure-chirality sensing relationship between achiral anthracene-based tetracationic nanotubes and nucleosides in the host-guest complexation was unraveled. Firstly, the CD response originates from the anthracene rings situated at the side-wall position, resulting from the right-handed (P)- or left-handed (M)-twisted conformation of the macrocyclic structure. Secondly, the CPL signal is influenced by the presence of anthracene rings at the linking-wall position, which results from intermolecular chiral twisted stacking between these anthracene rings. Therefore, these nanotubes can serve as chiroptical sensor arrays to enhance the accuracy of nucleotide recognition through principal component analysis (PCA) analysis based on the diversified CD spectra. This study provides insights for the construction of adaptive chirality from achiral nanotubes with dynamic conformational nature and might facilitate further design of chiral functional materials for several applications.
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Affiliation(s)
- Ting Yang
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Honghong Duan
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China; Xian North Qinghua Electrical Co., Ltd, Xi'an, 710054, China
| | - Hao Nian
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China; Southern University of Science and Technology, Shenzhen, 518055, China
| | - Pingxia Wang
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Chaochao Yan
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Fan Cao
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Qingfang Li
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China
| | - Liping Cao
- College of Chemistry and Materials Science, Northwest University, Xi'an 710069, China.
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3
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Xu Z, Deng W, Li N, Lv T, Wang L, Chen X, Li M, Zhang W, Liu B, Peng X. Harnessing a simple ratiometric fluorescent probe for albumin recognition and beyond. Chem Commun (Camb) 2024; 60:6304-6307. [PMID: 38818574 DOI: 10.1039/d4cc01813c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
A commercially available naphthalene fluorophore serves as a ratiometric indicator for albumin, showcasing its applications in albumin-based supramolecular recognition.
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Affiliation(s)
- Zhongyong Xu
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Weihua Deng
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Na Li
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Taoyuze Lv
- School of Physics, The University of Sydney, NSW 2006, Australia
| | - Lei Wang
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Xiaoqiang Chen
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Mingle Li
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Wenxing Zhang
- Advanced Materials and Devices Laboratory, School of Materials Science and Engineering, Hanshan Normal University, Guangdong, 521041, China.
| | - Bin Liu
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
| | - Xiaojun Peng
- College of Material Science and Engineering, State Key Laboratory of Fine Chemicals, Shenzhen University, Shenzhen 518060, P. R. China.
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4
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Teng Q, Zhou K, Yu K, Zhang X, Li Z, Wang H, Zhu C, Wang Z, Dai Z. Principal component analysis-assisted zirconium-based metal-organic frameworks/DNA biosensor for the analysis of various phosphates. Talanta 2024; 271:125733. [PMID: 38309111 DOI: 10.1016/j.talanta.2024.125733] [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: 11/08/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
Considering the diversity of phosphates and their pivotal roles in physiological processes, detection of various phosphates related to their metabolism is urgent but challenging. Herein, we design a biosensor with zirconium-based MOFs (Zr-MOFs) and fluorophore-modified single-stranded DNA (F-ssDNA) for the analysis of phosphates. Relying on the interaction between Zr clusters and phosphate backbone, F-ssDNA is anchored on the surface of Zr-MOFs, inducing fluorescence resonance energy transfer (FRET) and subsequently quenching the fluorescence of F-ssDNA. Meanwhile, phosphates with different numbers of phosphate groups, molecular structures and coordination environments are able to adjust the FRET between Zr-MOFs and F-ssDNA via a site-occupying effect, recovering the fluorescence of F-ssDNA in distinct cases, which may result in diverse fluorescence signals. Consequently, seventeen phosphates and four phosphate mixtures are discriminated with the assistance of principal component analysis. These results provide new insight into the application of Zr-MOFs and broaden the path for the development of analytical methods for phosphates.
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Affiliation(s)
- Qiuyi Teng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Kunkun Zhou
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Kaihua Yu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xinyi Zhang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zijun Li
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Huafeng Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chengzhi Zhu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Zhaoyin Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China; School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, China.
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5
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Chen B, Mo X, Qu X, Xu Z, Zheng S, Fu H. Multiple-Emitting Luminescent Metal-Organic Framework as an Array-on-a-MOF for Rapid Screening and Discrimination of Nitroaromatics. Anal Chem 2024; 96:6228-6235. [PMID: 38572697 DOI: 10.1021/acs.analchem.3c05282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Fluorescence array technologies have attracted great interest in the sensing field because of their high sensitivity, low cost, and capability of multitarget detection. However, traditional array sensing relies on multiple independent sensors and thus often requires time-consuming and laborious measurement processes. Herein, we introduce a novel fluorescence array strategy of the array-on-a-metal-organic framework (MOF), which integrates multiple array elements into a single MOF matrix to achieve facile sensing and discrimination of multiple target analytes. As a proof-of-concept system, we constructed a luminescent MOF containing three different emitting channels, including a lanthanide ion (europium/Eu3+, red emission), a fluorescent dye (7-hydroxycoumarin-4-acetic acid/HCAA, blue emission), and the MOF itself (UiO-66-type MOF, blue-violet emission). Five structurally similar nitroaromatic compounds (NACs) were chosen as the targets. All three channels of the array-on-a-MOF displayed rapid and stable fluorescence quenching responses to NACs (response equilibrium achieved within 30 s). Different responses were generated for each channel against each NAC due to the various quenching mechanisms, including photoinduced electron transfer, energy competition, and the inner filter effect. Using linear discriminant analysis, the array-on-a-MOF successfully distinguished the five NACs and their mixtures at varying concentrations and demonstrated good sensitivity to quantify individual NACs (detect limit below the advisory concentration in drinking water). Moreover, the array also showed feasibility in the sensing and discrimination of multiple NACs in real water samples. The proposed "array-on-a-MOF" strategy simplifies multitarget discrimination procedures and holds great promise for various sensing applications.
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Affiliation(s)
- Beining Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Xiaojing Mo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Xiaolei Qu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Zhaoyi Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Shourong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Heyun Fu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
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6
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Wang N, Li H, Tian Y, Tan L, Cheng S, Wang J. Molecularly imprinted ratiometric fluorescence sensor for visual detection of 17β-estradiol in milk: A generalized strategy toward imprinted ratiometric fluorescence construction. Mikrochim Acta 2024; 191:249. [PMID: 38587558 DOI: 10.1007/s00604-024-06329-w] [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: 01/09/2024] [Accepted: 03/24/2024] [Indexed: 04/09/2024]
Abstract
17β-Estradiol (E2) is the typical endocrine disruptor of steroidal estrogens and is widely used in animal husbandry and dairy processing. In the environment, even lower concentrations of E2 can cause endocrine dysfunction in organisms. Herein, we have developed a novel molecularly imprinted ratiometric fluorescent sensor based on SiO2-coated CdTe quantum dots (CdTe@SiO2) and 7-hydroxycoumarin with a post-imprint mixing strategy. The sensor selectively detected E2 in aqueous environments due to its two fluorescent signals with a self-correction function. The sensor has been successfully used for spiking a wide range of real water and milk samples. The results showed that the sensor exhibited good linearity over the concentration range 0.011-50 μg/L, obtaining satisfactory recoveries of 92.4-110.6% with precisions (RSD) < 2.5%. Moreover, this sensor obtained an ultra-low detection limit of 3.3 ng/L and a higher imprinting factor of 13.66. By using estriol (E3), as a supporting model, it was confirmed that a simple and economical ratiometric fluorescent construction strategy was provided for other hydrophobic substances.
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Affiliation(s)
- Na Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Huiru Li
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China
| | - Yanbo Tian
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China
| | - Liju Tan
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China
| | - Shuzhen Cheng
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China.
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7
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Wang L, Wen Y, Li L, Yang X, Li W, Cao M, Tao Q, Sun X, Liu G. Development of Optical Differential Sensing Based on Nanomaterials for Biological Analysis. BIOSENSORS 2024; 14:170. [PMID: 38667163 PMCID: PMC11048167 DOI: 10.3390/bios14040170] [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: 02/28/2024] [Revised: 03/25/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024]
Abstract
The discrimination and recognition of biological targets, such as proteins, cells, and bacteria, are of utmost importance in various fields of biological research and production. These include areas like biological medicine, clinical diagnosis, and microbiology analysis. In order to efficiently and cost-effectively identify a specific target from a wide range of possibilities, researchers have developed a technique called differential sensing. Unlike traditional "lock-and-key" sensors that rely on specific interactions between receptors and analytes, differential sensing makes use of cross-reactive receptors. These sensors offer less specificity but can cross-react with a wide range of analytes to produce a large amount of data. Many pattern recognition strategies have been developed and have shown promising results in identifying complex analytes. To create advanced sensor arrays for higher analysis efficiency and larger recognizing range, various nanomaterials have been utilized as sensing probes. These nanomaterials possess distinct molecular affinities, optical/electrical properties, and biological compatibility, and are conveniently functionalized. In this review, our focus is on recently reported optical sensor arrays that utilize nanomaterials to discriminate bioanalytes, including proteins, cells, and bacteria.
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Affiliation(s)
| | - Yanli Wen
- Key Laboratory of Bioanalysis and Metrology for State Market Regulation, Shanghai Institute of Measurement and Testing Technology, 1500 Zhang Heng Road, Shanghai 201203, China; (L.W.); (L.L.); (X.Y.); (W.L.); (M.C.); (Q.T.); (X.S.)
| | | | | | | | | | | | | | - Gang Liu
- Key Laboratory of Bioanalysis and Metrology for State Market Regulation, Shanghai Institute of Measurement and Testing Technology, 1500 Zhang Heng Road, Shanghai 201203, China; (L.W.); (L.L.); (X.Y.); (W.L.); (M.C.); (Q.T.); (X.S.)
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8
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Rana A, Mishra G, Biswas S. Functional Group-Assisted Fluorescence Sensing Platform for Nanomolar-Level Detection of an Antineoplastic Drug and a Neurotransmitter from Environmental Water and Human Biofluids. Inorg Chem 2024; 63:4502-4510. [PMID: 38408375 DOI: 10.1021/acs.inorgchem.3c03341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
A fast, sensitive, selective, and biocompatible dual sensor of an antineoplastic medication (methotrexate) and a neurotransmitter (adrenaline) is still being searched by present-day scientists. To overcome this issue, we have designed a functionalized, robust, bio-friendly luminescent MOF for the sensitive, selective, and rapid monitoring of methotrexate and adrenaline. This probe is the first ever reported MOF-based fluorescence sensor of methotrexate and second only for adrenaline. This fluorescence probe has a very low limit of detection (LOD) of 0.34 and 11.2 nM for adrenaline and methotrexate, respectively. The sensor can detect both the targeted analytes rapidly within 5 s. It can also detect adrenaline and methotrexate from human blood serum and urine accurately and precisely. This reusable sensor is equally efficient in detecting methotrexate from environmental water specimens. Biocompatible, user-friendly, and inexpensive chitosan@MOF@cotton composites were fabricated for the detection of adrenaline and methotrexate from the nanomolar to the micromolar range by the naked eye under a fluorescence lamp. This probe displayed high reproducibility, precision, and accuracy in sensing methotrexate and adrenaline. Fluorescence resonance energy transfer (FRET) and the inner filter effect (IFE) are the possible mechanisms for adrenaline and methotrexate sensing, respectively. The possible mechanism was supported by using required instrumental techniques and theoretical simulations.
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Affiliation(s)
- Abhijeet Rana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Gyanesh Mishra
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Shyam Biswas
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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9
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Li X, Jin Y, Zhu N, Yin J, Jin LY. Recent Developments of Fluorescence Sensors Constructed from Pillar[ n]arene-Based Supramolecular Architectures Containing Metal Coordination Sites. SENSORS (BASEL, SWITZERLAND) 2024; 24:1530. [PMID: 38475066 DOI: 10.3390/s24051530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
The field of fluorescence sensing, leveraging various supramolecular self-assembled architectures constructed from macrocyclic pillar[n]arenes, has seen significant advancement in recent decades. This review comprehensively discusses, for the first time, the recent innovations in the synthesis and self-assembly of pillar[n]arene-based supramolecular architectures (PSAs) containing metal coordination sites, along with their practical applications and prospects in fluorescence sensing. Integrating hydrophobic and electron-rich cavities of pillar[n]arenes into these supramolecular structures endows the entire system with self-assembly behavior and stimulus responsiveness. Employing the host-guest interaction strategy and complementary coordination forces, PSAs exhibiting both intelligent and controllable properties are successfully constructed. This provides a broad horizon for advancing fluorescence sensors capable of detecting environmental pollutants. This review aims to establish a solid foundation for the future development of fluorescence sensing applications utilizing PSAs. Additionally, current challenges and future perspectives in this field are discussed.
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Affiliation(s)
- Xu Li
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, China
| | - Yan Jin
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, China
| | - Nansong Zhu
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, China
| | - Jinghua Yin
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, China
| | - Long Yi Jin
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, China
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10
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Yi HL, Yang RP, Tang Q, Tao Z, Huang Y. Supramolecular fluorescence sensor array used for the analysis of tyrosine kinase inhibitors in biological fluids and cell imaging. Anal Chim Acta 2024; 1287:342124. [PMID: 38182394 DOI: 10.1016/j.aca.2023.342124] [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: 10/25/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/07/2024]
Abstract
Tyrosine kinase inhibitors (TKIs) are commonly used in tumor targeting therapy. However, the rapid analysis of TKIs remains a significant challenge, especially in complex biological fluid environments. In this work, we have constructed a supramolecular fluorescence sensor array based on a cucurbituril-dye host-guest complex. The binding affinity between the three complexes and each TKI is different, resulting in different cross-response signals of the complexes to the fluorescence of each TKI. Combined with linear discriminant analysis(LDA), five kinds of TKIs can be well identified. The supramolecular fluorescence sensor array could accurately identify and distinguish the five TKIs in water and could classify mixtures containing different concentrations of TKIs in serum. The concentration and Factor 1 exhibited a good linear relationship and the detection limit (LOD) was as low as 10-7 mol L-1. The method has good reproducibility and stability. In addition, the differentiation of four clinical concentrations of first-generation TKIs further validated the potential application of arrays in drug monitoring. Finally, our proposed array enabled drug imaging in living cells. Our array platform provided the foundation for the rapid and easy monitoring of 4-anilinoquinazoline TKIs.
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Affiliation(s)
- Hong-Ling Yi
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Ru-Pei Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Qing Tang
- Department College of Tobacco Science, Guizhou University, Guiyang, 550025, China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Ying Huang
- The Engineering and Research Center for Southwest Bio-Pharmaceutical Resources of National Education Ministry of China, Guizhou University, Guiyang, 550025, China.
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11
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Wang R, Li WB, Deng JY, Han H, Chen FY, Li DY, Jing LB, Song Z, Fu R, Guo DS, Cai K. Adaptive and Ultrahigh-Affinity Recognition in Water by Sulfated Conjugated Corral[5]arene. Angew Chem Int Ed Engl 2023:e202317402. [PMID: 38078790 DOI: 10.1002/anie.202317402] [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: 11/15/2023] [Indexed: 12/29/2023]
Abstract
The pursuit of synthetic receptors with high binding affinities has long been a central focus in supramolecular chemistry, driven by their significant practical relevance in various fields. Despite the numerous synthetic receptors that have been developed, most exhibit binding affinities in the micromolar range or lower. Only a few exceptional receptors achieve binding affinities exceeding 109 M-1 , and their substrate scopes remain rather limited. In this context, we introduce SC[5]A, a conjugated corral-shaped macrocycle functionalized with ten sulfate groups. Owing to its deep one-dimensional confined hydrophobic cavity and multiple sulfate groups, SC[5]A displays an extraordinarily high binding strength of up to 1011 M-1 towards several size-matched, rod-shaped organic dications in water. Besides, its conformation exhibits good adaptability, allowing it to encapsulate a wide range of other guests with diverse molecular sizes, shapes, and functionalities, exhibiting relatively strong affinities (Ka =106 -108 M-1 ). Additionally, we've explored the preliminary application of SC[5]A in alleviating blood coagulation induced by hexadimethrine bromide in vitro and in vivo. Therefore, the combination of ultrahigh binding affinities (towards complementary guests) and adaptive recognition capability (towards a wide range of functional guests) of SC[5]A positions it as exceptionally valuable for numerous practical applications.
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Affiliation(s)
- Ruiguo Wang
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Wen-Bo Li
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 300071, Tianjin, China
| | - Jia-Ying Deng
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Han Han
- College of Chemistry, The University of Hong Kong, Pokfulam Road, 999077, Hong Kong SAR, China
| | - Fang-Yuan Chen
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 300071, Tianjin, China
| | - Dai-Yuan Li
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 300071, Tianjin, China
| | - Li-Bo Jing
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Zihang Song
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Rong Fu
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
| | - Dong-Sheng Guo
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), Frontiers Science Center for New Organic Matter, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, 300071, Tianjin, China
| | - Kang Cai
- College of Chemistry, Nankai University, 94 Weijin Road, 300071, Tianjin, China
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12
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Ling L, Zhao Z, Mao L, Wang S, Ma D. Water-soluble pillar[6]arene bearing pyrene on alternating methylene bridges for direct spermine sensing. Chem Commun (Camb) 2023; 59:14161-14164. [PMID: 37955311 DOI: 10.1039/d3cc05094g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
This paper describes the design and synthesis of a conjugate, which is composed of a percarboxylated water-soluble pillar[6]arene and three fluorescent pyrene chromophores on alternating methylene bridges. The optical characteristics are investigated. This conjugate is capable of encapsulating polycationic guest spermine, which results in an enhancement in the fluorescence intensity of pyrene. This host-pyrene conjugate is used for direct sensing of spermine, which shows selectivity towards a variety of biological analytes. The detection of spermine is demonstrated in live cells.
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Affiliation(s)
- Li Ling
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Zizhen Zhao
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Lijun Mao
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
| | - Shuyi Wang
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Da Ma
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
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13
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Han Y, Mao L, Zhang QW, Tian Y. Sub-100 ms Level Ultrafast Detection and Near-Infrared Ratiometric Fluorescence Imaging of Norepinephrine in Live Neurons and Brains. J Am Chem Soc 2023; 145:23832-23841. [PMID: 37850961 DOI: 10.1021/jacs.3c09239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Norepinephrine (NE) is a key neurotransmitter in the central and sympathetic nervous systems, whose content fluctuates dynamically and rapidly in various brain regions during different physiological and pathophysiological processes. However, it remains a great challenge to directly visualize and precisely quantify the transient NE dynamics in living systems with high accuracy, specificity, sensitivity, and, in particular, high temporal resolution. Herein, we developed a series of small-molecular probes that can specifically detect NE through a sequential nucleophilic substitution-cyclization reaction, accompanied by a ratiometric near-infrared fluorescence response, within an impressively short time down to 60 ms, which is 3 orders of magnitude faster than that of present small-molecular probes. A unique water-promoted intermolecular proton transfer mechanism is disclosed, which dramatically boosted the recognition kinetics by ∼680 times. Benefiting from these excellent features, we quantitatively imaged the transient endogenous NE dynamics under external stimuli at the single living neuron level and further revealed the close correlations between NE fluctuations and Parkinson's disease pathology at the level of acute brain slices and live mouse brains in vivo.
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Affiliation(s)
- Yujie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, People's Republic of China
| | - Leiwen Mao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, People's Republic of China
| | - Qi-Wei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, People's Republic of China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, People's Republic of China
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14
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Xu W, Cai X, Wu Y, Wen Y, Su R, Zhang Y, Huang Y, Zheng Q, Hu L, Cui X, Zheng L, Zhang S, Gu W, Song W, Guo S, Zhu C. Biomimetic single Al-OH site with high acetylcholinesterase-like activity and self-defense ability for neuroprotection. Nat Commun 2023; 14:6064. [PMID: 37770453 PMCID: PMC10539540 DOI: 10.1038/s41467-023-41765-x] [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: 04/14/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023] Open
Abstract
Neurotoxicity of organophosphate compounds (OPs) can catastrophically cause nervous system injury by inhibiting acetylcholinesterase (AChE) expression. Although artificial systems have been developed for indirect neuroprotection, they are limited to dissociating P-O bonds for eliminating OPs. However, these systems have failed to overcome the deactivation of AChE. Herein, we report our finding that Al3+ is engineered onto the nodes of metal-organic framework to synthesize MOF-808-Al with enhanced Lewis acidity. The resultant MOF-808-Al efficiently mimics the catalytic behavior of AChE and has a self-defense ability to break the activity inhibition by OPs. Mechanism investigations elucidate that Al3+ Lewis acid sites with a strong polarization effect unite the highly electronegative -OH groups to form the enzyme-like catalytic center, resulting in superior substrate activation and nucleophilic attack ability with a 2.7-fold activity improvement. The multifunctional MOF-808-Al, which has satisfactory biosafety, is efficient in reducing neurotoxic effects and preventing neuronal tissue damage.
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Affiliation(s)
- Weiqing Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Xiaoli Cai
- Department of Nutrition, Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430065, P.R. China
| | - Yu Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Yating Wen
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Rina Su
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Yu Zhang
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Yuteng Huang
- Department of Nutrition, Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430065, P.R. China
| | - Qihui Zheng
- Department of Nutrition, Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, Wuhan, 430065, P.R. China
| | - Liuyong Hu
- School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan, 430205, P.R. China
| | - Xiaowen Cui
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics Department, Chinese Academy of Sciences Institution, Beijing, 100049, P.R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics Department, Chinese Academy of Sciences Institution, Beijing, 100049, P.R. China
| | - Shipeng Zhang
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P.R. China
| | - Wenling Gu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum, Beijing, 102249, P.R. China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P.R. China.
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China.
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15
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Mujahid A, Afzal A, Dickert FL. Transitioning from Supramolecular Chemistry to Molecularly Imprinted Polymers in Chemical Sensing. SENSORS (BASEL, SWITZERLAND) 2023; 23:7457. [PMID: 37687913 PMCID: PMC10490783 DOI: 10.3390/s23177457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
This perspective article focuses on the overwhelming significance of molecular recognition in biological processes and its emulation in synthetic molecules and polymers for chemical sensing. The historical journey, from early investigations into enzyme catalysis and antibody-antigen interactions to Nobel Prize-winning breakthroughs in supramolecular chemistry, emphasizes the development of tailored molecular recognition materials. The discovery of supramolecular chemistry and molecular imprinting, as a versatile method for mimicking biological recognition, is discussed. The ability of supramolecular structures to develop selective host-guest interactions and the flexible design of molecularly imprinted polymers (MIPs) are highlighted, discussing their applications in chemical sensing. MIPs, mimicking the selectivity of natural receptors, offer advantages like rapid synthesis and cost-effectiveness. Finally, addressing major challenges in the field, this article summarizes the advancement of molecular recognition-based systems for chemical sensing and their transformative potential.
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Affiliation(s)
- Adnan Mujahid
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, A-1090 Vienna, Austria; (A.M.); (A.A.)
- School of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Adeel Afzal
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, A-1090 Vienna, Austria; (A.M.); (A.A.)
- School of Chemistry, University of the Punjab, Quaid-i-Azam Campus, Lahore 54590, Pakistan
| | - Franz L. Dickert
- Department of Analytical Chemistry, University of Vienna, Währinger Straße 38, A-1090 Vienna, Austria; (A.M.); (A.A.)
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16
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Fan L, Li W, Jia D, Zhang W, Ding Y. Pattern Recognition and Visual Detection of Aldehydes Using a Single ESIPT Dye. Anal Chem 2023; 95:12284-12289. [PMID: 37556792 DOI: 10.1021/acs.analchem.3c01231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
The accurate discrimination and quantification of aldehydes is a worthy objective made challenging by their similar chemical reactivities. Considering the nucleophilic reaction mechanism between an aldehyde and a primary amine, it is reasonable to vary the reaction pH to manipulate the reactivity of aldehydes and the stability of the resulting Schiff base for analytical purposes. We have designed and synthesized three benzothiazole-based fluorescent molecules (BS1-BS3) containing an amino group substituted at the ortho-, meta-, and para-positions for aldehyde sensing. It was determined that only BS1 having an amino group at the ortho-position exhibits a significant fluorescence response in the presence of formaldehyde at a particular pH, whereas BS2 and BS3 gave negligible responses, indicating that the ESIPT process in BS1 should be responsible for the changes in its fluorescence. Accordingly, a pH-mediated sensor array BS1SA was constructed by dissolving BS1 in aqueous solvents with different pH values. BS1SA was found to be reliable for the discrimination of seven different aldehydes and identification of unknown aldehyde samples. Moreover, BS1 was successfully applied to prepare a fluorescent test paper for the visual detection of formaldehyde vapor.
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Affiliation(s)
- Liangfei Fan
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Weiyi Li
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Dongmin Jia
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Weihua Zhang
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yubin Ding
- Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
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17
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Zhang Y, Wang Y, Chen T, Han Y, Yan C, Wang J, Lu B, Ma L, Ding Y, Yao Y. Pillar[5]arene based water-soluble [3]pseudorotaxane with enhanced fluorescence emission for cell imaging and both type I and II photodynamic cancer therapy. Chem Commun (Camb) 2023. [PMID: 37314502 DOI: 10.1039/d3cc01929b] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Water-soluble [3]pseudorotaxane with enhanced fluorescence emission was successfully constructed and applied in cell imaging and photodynamic cancer therapy.
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Affiliation(s)
- Yue Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Yang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Tingting Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Ying Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225001, P. R. China.
| | - Chaoguo Yan
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225001, P. R. China.
| | - Jin Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Bing Lu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Longtao Ma
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225001, P. R. China.
| | - Yue Ding
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
| | - Yong Yao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China.
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18
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Liu X, Liu J, Xu Q, Tao W, Xie X, Meng C, Zhou Q, Zhang Y, Ling Y. A versatile supramolecular nanoagent for three-pronged boosting chemodynamic therapy. J Colloid Interface Sci 2023; 648:994-1005. [PMID: 37331080 DOI: 10.1016/j.jcis.2023.04.185] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/28/2023] [Accepted: 04/11/2023] [Indexed: 06/20/2023]
Abstract
Chemodynamic therapy (CDT) utilizing toxic hydroxyl radicals (·OH) to kill cancer cells exhibits huge potentiality in antitumor treatment. However, inadequate acidity, insufficient hydrogen peroxide (H2O2) amount, and overexpressed reduced glutathione (GSH) inside cancer cells severely restrict the efficacy of CDT. Although numerous efforts have been made, fabricating a versatile CDT material for surmounting these obstacles simultaneously is still a great challenge, especially for supramolecular materials owing to lacking an active metal unit for the Fenton reaction. Here, we intriguingly proposed a powerful supramolecular nanoagent (GOx@GANPs) based on the host-guest interaction between pillar[6]arene and ferrocene for all-sided boosting CDT efficacy via in situ cascade reactions. GOx@GANPs could stimulate intracellular glucose conversion into H+ and H2O2 to optimize the in situ Fenton reaction conditions and continuously produce sufficient •OH. Meanwhile, consumption of the original intracellular GSH pool and inhibition of GSH regeneration were synchronously achieved through the GSH-responsive gambogic acid prodrug and cutting off adenosine triphosphate (ATP) supply for GSH resynthesis, respectively. This complete GSH exhausting characteristic of GOx@GANPs effectively suppressed •OH elimination, ultimately resulting in a superior CDT effect. Furthermore, GOx@GANPs also produced synergistic effects of starvation therapy, chemotherapy, and CDT, exhibiting low toxicity toward normal tissues. Thus, this work introduces a valuable way for optimizing and elevating CDT efficiency and synergistic treatment of tumors.
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Affiliation(s)
- Xin Liu
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China.
| | - Ji Liu
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Qin Xu
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Weizhi Tao
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Xudong Xie
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Chi Meng
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Qinbei Zhou
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Yanan Zhang
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China
| | - Yong Ling
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226001, PR China.
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Two-photon fluorescence imaging and specifically biosensing of norepinephrine on a 100-ms timescale. Nat Commun 2023; 14:1419. [PMID: 36918539 PMCID: PMC10014876 DOI: 10.1038/s41467-023-36869-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
Norepinephrine (NE) is a key neurotransmitter in the central nervous system of organisms; however, specifically tracking the transient NE dynamics with high spatiotemporal resolution in living systems remains a great challenge. Herein, we develop a small molecular fluorescent probe that can precisely anchor on neuronal cytomembranes and specifically respond to NE on a 100-ms timescale. A unique dual acceleration mechanism of molecular-folding and water-bridging is disclosed, which boosts the reaction kinetics by ˃105 and ˃103 times, respectively. Benefiting from its excellent spatiotemporal resolution, the probe is applied to monitor NE dynamics at the single-neuron level, thereby, successfully snapshotting the fast fluctuation of NE levels at neuronal cytomembranes within 2 s. Moreover, two-photon fluorescence imaging of acute brain tissue slices reveals a close correlation between downregulated NE levels and Alzheimer's disease pathology as well as antioxidant therapy.
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20
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Wu Q, Lei Q, Zhong HC, Ren TB, Sun Y, Zhang XB, Yuan L. Fluorophore-based host-guest assembly complexes for imaging and therapy. Chem Commun (Camb) 2023; 59:3024-3039. [PMID: 36785939 DOI: 10.1039/d2cc06286k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Recently, supramolecular chemistry with its unique properties has received considerable attention in many fields. Supramolecular fluorescent systems constructed on the basis of macrocyclic hosts are not only effective in overcoming the limitations of imaging and diagnostic reagents, but also in enhancing their performances. This paper summarizes the recent advances in supramolecular fluorescent systems based on host-guest interactions and their application in bioimaging and therapy as well as the challenges and prospects in developing novel supramolecular fluorescent systems.
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Affiliation(s)
- Qian Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Qian Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Hai-Chen Zhong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Yao Sun
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
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21
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Lu J, Deng Y, Liu P, Han Q, Jin LY. Self-assembly of β-cyclodextrin-pillar[5]arene molecules into supramolecular nanoassemblies: morphology control by stimulus responsiveness and host-guest interactions. NANOSCALE 2023; 15:4282-4290. [PMID: 36762519 DOI: 10.1039/d2nr07097a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Macrocyclic molecules have attracted considerable attention as new functional materials owing to their unique pore size structure and excellent host-guest properties. With the development of macrocyclic compounds, the properties of mono-modified macrocyclic materials can be improved by incorporating pillar[n]arene or cyclodextrin derivatives through bridge bonds. Herein, we report the self-assembly of amphiphilic di-macrocyclic host molecules (H1-2) based on β-cyclodextrin and pillar[5]arene units linked by azophenyl or biphenyl groups. In a H2O/DMSO (19 : 1, v/v) mixed polar solvent, an amphiphile H1 with an azophenyl group self-assembled into unique nanorings and exhibited an obvious photoresponsive colour change. This photochromic behaviour makes H1 suitable for application in carbon paper materials on which arbitrary patterns can be erased and rewritten. The amphiphile H2, with a biphenyl unit, self-assembled into spherical micelles. These differences indicate that various linker units lead to changes in the intermolecular and hydrophilic-hydrophobic interactions. In a CHCl3/DMSO (19 : 1, v/v) mixed low-polarity solvent, the amphiphile H1 self-assembled into fibrous aggregates, whereas the molecule H2 assembled into unique nanoring aggregates. In this CHCl3/DMSO mixed solvent system, small nanosheet aggregates were formed by the addition of a guest molecule (G) composed of tetraphenylethene and hexanenitrile groups. With prolonged aggregation time, the small sheet aggregates further aggregated into cross-linked nanoribbons and eventually formed large nanosheet aggregates. The data reveal that the morphology of H1-2 can be controlled by tuning the intermolecular interactions of the molecules via the formation of host-guest complexes. Moreover, the polyhydroxy cyclodextrin unit on H1-2 can be strongly adsorbed on the stationary phase in column chromatography via multiple hydrogen bonds, and the singly modified pillar[5]arenes can be successfully separated by host-guest interactions.
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Affiliation(s)
- Jie Lu
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, P. R. China.
| | - Yingying Deng
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, P. R. China.
| | - Peng Liu
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, P. R. China.
| | - Qingqing Han
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, P. R. China.
| | - Long Yi Jin
- Department of Chemistry, National Demonstration Centre for Experimental Chemistry Education, Yanbian University, Yanji 133002, P. R. China.
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22
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Abstract
The genetically encoded fluorescent sensors convert chemical and physical signals into light. They are powerful tools for the visualisation of physiological processes in living cells and freely moving animals. The fluorescent protein is the reporter module of a genetically encoded biosensor. In this study, we first review the history of the fluorescent protein in full emission spectra on a structural basis. Then, we discuss the design of the genetically encoded biosensor. Finally, we briefly review several major types of genetically encoded biosensors that are currently widely used based on their design and molecular targets, which may be useful for the future design of fluorescent biosensors.
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Affiliation(s)
- Minji Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, No. 3663 Zhong Shan Road North, Shanghai, 200062, China
| | - Yifan Da
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, No. 3663 Zhong Shan Road North, Shanghai, 200062, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, No. 3663 Zhong Shan Road North, Shanghai, 200062, China
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23
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Rapid and specific detection of norepinephrine via a “hunting—shooting” strategy. Sci China Chem 2023. [DOI: 10.1007/s11426-023-1543-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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24
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Yan H, Wang Y, Huo F, Yin C. Fast-Specific Fluorescent Probes to Visualize Norepinephrine Signaling Pathways and Its Flux in the Epileptic Mice Brain. J Am Chem Soc 2023; 145:3229-3237. [PMID: 36701205 DOI: 10.1021/jacs.2c13223] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Norepinephrine (NE) is synthesized in the locus coeruleus and widely projected throughout the brain and spinal cord. It regulates various actions and consciousness linked to a variety of neurological diseases. A "hunting-shooting" strategy was proposed in this work to improve the specificity and response rate of an NE fluorescent probe: 2-(cyclohex-2-en-1-ylidene)malononitrile derivatives were chosen as a fluorophore. To create a dual-site probe, an aldehyde group was added to the ortho of the ester group (or benzene sulfonate). Because of its excellent electrophilic activity, the aldehyde group could rapidly "hunt" the amino group and then form an intramolecular five-membered ring via the nucleophilic reaction with the β-hydroxyl group. The -NH- in the five-membered ring "shoots" the adjacent ester group, releasing the fluorophore and allowing for rapid and specific NE detection. The NE release and reuptake ″emetic″-″swallow″ transient process is captured and visualized under the action of the primary NE receptor drug. Furthermore, by introducing halogen into the fluorophore to lengthen the absorption wavelength, improve lipid solubility, and adjust the pKa appropriately, the probe successfully penetrated the blood-brain barrier (BBB). In situ synchronous probe imaging was used to detect the NE level in the brains of epileptic and normal mice, and abnormal expression of NE in the brain was discovered during epilepsy. Brain anatomy was used to examine the distribution and level changes of NE in various brain regions before and after epilepsy. This research provides useful tools and a theoretical foundation for diagnosing and treating central nervous system diseases early.
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Affiliation(s)
- Huming Yan
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yuting Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Fangjun Huo
- Research Institute of Applied Chemistry, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Caixia Yin
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
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25
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Li X, Zhou S, Zhao Q, Chen Y, Qi P, Zhang Y, Wang L, Guo C, Chen S. Supramolecular Enhancement of Charge Transport through Pillar[5]arene-Based Self-Assembled Monolayers. Angew Chem Int Ed Engl 2023; 62:e202216987. [PMID: 36728903 DOI: 10.1002/anie.202216987] [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: 11/18/2022] [Revised: 01/15/2023] [Accepted: 02/02/2023] [Indexed: 02/03/2023]
Abstract
Intermolecular charge transport is one of the essential modes for modulating charge transport in molecular electronic devices. Supermolecules are highly promising candidates for molecular devices because of their abundant structures and easy functionalization. Herein, we report an efficient strategy to enhance charge transport through pillar[5]arene self-assembled monolayers (SAMs) by introducing cationic guests. The current density of pillar[5]arene SAMs can be raised up to about 2.1 orders of magnitude by inserting cationic molecules into the cavity of pillar[5]arenes in SAMs. Importantly, we have also observed a positive correlation between the charge transport of pillar[5]arene-based complex SAMs and the binding affinities of the pillar[5]arene-based complexation. Such an enhancement of charge transport is attributed to the efficient host-guest interactions that stabilize the supramolecular complexes and lower the energy gaps for charge transport. This work provides a predictive pattern for the regulation of intermolecular charge transport in guiding the design of next generation switches and functional sensors in supramolecular electronics.
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Affiliation(s)
- Xiaobing Li
- College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Siyuan Zhou
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Qi Zhao
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Yi Chen
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Pan Qi
- College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Yongkang Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Lu Wang
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Cunlan Guo
- College of Chemistry and Molecular Sciences, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
| | - Shigui Chen
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei, 430072, China
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26
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Da Y, Luo S, Tian Y. Real-Time Monitoring of Neurotransmitters in the Brain of Living Animals. ACS APPLIED MATERIALS & INTERFACES 2023; 15:138-157. [PMID: 35394736 DOI: 10.1021/acsami.2c02740] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Neurotransmitters, as important chemical small molecules, perform the function of neural signal transmission from cell to cell. Excess concentrations of neurotransmitters are often closely associated with brain diseases, such as Alzheimer's disease, depression, schizophrenia, and Parkinson's disease. On the other hand, the release of neurotransmitters under the induced stimulation indicates the occurrence of reward-related behaviors, including food and drug addiction. Therefore, to understand the physiological and pathological functions of neurotransmitters, especially in complex environments of the living brain, it is urgent to develop effective tools to monitor their dynamics with high sensitivity and specificity. Over the past 30 years, significant advances in electrochemical sensors and optical probes have brought new possibilities for studying neurons and neural circuits by monitoring the changes in neurotransmitters. This Review focuses on the progress in the construction of sensors for in vivo analysis of neurotransmitters in the brain and summarizes current attempts to address key issues in the development of sensors with high selectivity, sensitivity, and stability. Combined with the latest advances in technologies and methods, several strategies for sensor construction are provided for recording chemical signal changes in the complex environment of the brain.
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Affiliation(s)
- Yifan Da
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
| | - Shihua Luo
- Department of Traumatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Dongchuan Road 500, Shanghai 200241, China
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27
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Machine learning-assisted optical nano-sensor arrays in microorganism analysis. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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28
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Yang J, Wang X, Sun Y, Chen B, Hu F, Guo C, Yang T. Recent Advances in Colorimetric Sensors Based on Gold Nanoparticles for Pathogen Detection. BIOSENSORS 2022; 13:bios13010029. [PMID: 36671864 PMCID: PMC9856207 DOI: 10.3390/bios13010029] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Accepted: 12/23/2022] [Indexed: 05/28/2023]
Abstract
Infectious pathogens cause severe threats to public health due to their frightening infectivity and lethal capacity. Rapid and accurate detection of pathogens is of great significance for preventing their infection. Gold nanoparticles have drawn considerable attention in colorimetric biosensing during the past decades due to their unique physicochemical properties. Colorimetric diagnosis platforms based on functionalized AuNPs are emerging as a promising pathogen-analysis technique with the merits of high sensitivity, low-cost, and easy operation. This review summarizes the recent development in this field. We first introduce the significance of detecting pathogens and the characteristics of gold nanoparticles. Four types of colorimetric strategies, including the application of indirect target-mediated aggregation, chromogenic substrate-mediated catalytic activity, point-of-care testing (POCT) devices, and machine learning-assisted colorimetric sensor arrays, are systematically introduced. In particular, three biomolecule-functionalized AuNP-based colorimetric sensors are described in detail. Finally, we conclude by presenting our subjective views on the present challenges and some appropriate suggestions for future research directions of colorimetric sensors.
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Affiliation(s)
- Jianyu Yang
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xin Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yuyang Sun
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Bo Chen
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Fangxin Hu
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Chunxian Guo
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ting Yang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
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29
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Chen J, Hooley RJ, Zhong W. Applications of Synthetic Receptors in Bioanalysis and Drug Transport. Bioconjug Chem 2022; 33:2245-2253. [PMID: 35362963 DOI: 10.1021/acs.bioconjchem.2c00096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Synthetic receptors are powerful tools for molecular recognition. They can bind to guests with high selectivity and affinity, and their structures are tunable and diversified. These features, plus the relatively low cost and high simplicity in synthesis and modification, support the feasibility of array-based molecular analysis with synthetic receptors for improved selectivity in the recognition of a wide range of targets. More attractively, host-guest interaction is reversible and guest displacement allows biocompatible and gentle release of the host-bound molecules, simplifying the stimulation designs needed to control analyte sensing, enrichment, and transportation. Here, we highlight a few recent advancements in using synthetic receptors for molecular analysis and manipulation, with the focus on macrocyclic receptors and their applications in displacement sensing, separation, imaging, and drug transport.
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30
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Liu Z, Zhu Y, Zhang L, Jiang W, Liu Y, Tang Q, Cai X, Li J, Wang L, Tao C, Yin X, Li X, Hou S, Jiang D, Liu K, Zhou X, Zhang H, Liu M, Fan C, Tian Y. Structural and functional imaging of brains. Sci China Chem 2022; 66:324-366. [PMID: 36536633 PMCID: PMC9753096 DOI: 10.1007/s11426-022-1408-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/28/2022] [Indexed: 12/23/2022]
Abstract
Analyzing the complex structures and functions of brain is the key issue to understanding the physiological and pathological processes. Although neuronal morphology and local distribution of neurons/blood vessels in the brain have been known, the subcellular structures of cells remain challenging, especially in the live brain. In addition, the complicated brain functions involve numerous functional molecules, but the concentrations, distributions and interactions of these molecules in the brain are still poorly understood. In this review, frontier techniques available for multiscale structure imaging from organelles to the whole brain are first overviewed, including magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET), serial-section electron microscopy (ssEM), light microscopy (LM) and synchrotron-based X-ray microscopy (XRM). Specially, XRM for three-dimensional (3D) imaging of large-scale brain tissue with high resolution and fast imaging speed is highlighted. Additionally, the development of elegant methods for acquisition of brain functions from electrical/chemical signals in the brain is outlined. In particular, the new electrophysiology technologies for neural recordings at the single-neuron level and in the brain are also summarized. We also focus on the construction of electrochemical probes based on dual-recognition strategy and surface/interface chemistry for determination of chemical species in the brain with high selectivity and long-term stability, as well as electrochemophysiological microarray for simultaneously recording of electrochemical and electrophysiological signals in the brain. Moreover, the recent development of brain MRI probes with high contrast-to-noise ratio (CNR) and sensitivity based on hyperpolarized techniques and multi-nuclear chemistry is introduced. Furthermore, multiple optical probes and instruments, especially the optophysiological Raman probes and fiber Raman photometry, for imaging and biosensing in live brain are emphasized. Finally, a brief perspective on existing challenges and further research development is provided.
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Affiliation(s)
- Zhichao Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241 China
| | - Ying Zhu
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 201210 China
| | - Liming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241 China
| | - Weiping Jiang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Chinese Academy of Sciences, Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 China
| | - Yawei Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China
| | - Qiaowei Tang
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 201210 China
| | - Xiaoqing Cai
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 201210 China
| | - Jiang Li
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 201210 China
| | - Lihua Wang
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 201210 China
| | - Changlu Tao
- Interdisciplinary Center for Brain Information, Brain Cognition and Brain Disease Institute, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, Faculty of Life and Health Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | | | - Xiaowei Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Shangguo Hou
- Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518055 China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Kai Liu
- Department of Chemistry, Tsinghua University, Beijing, 100084 China
| | - Xin Zhou
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Chinese Academy of Sciences, Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 China
- Department of Chemistry, Tsinghua University, Beijing, 100084 China
| | - Maili Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Chinese Academy of Sciences, Wuhan National Laboratory for Optoelectronics, Wuhan, 430071 China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241 China
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31
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Yu MY, Xu LH, Zhang Z, Qiao Z, Su P, Wang P, Xie TZ. An Imidazole-Based Triangular Macrocycle for Visual Detection of Formaldehyde. Inorg Chem 2022; 61:20200-20205. [DOI: 10.1021/acs.inorgchem.2c03118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Min-Ya Yu
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Liang-Huan Xu
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Zhike Zhang
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Zhiwei Qiao
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Peiyang Su
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Pingshan Wang
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Ting-Zheng Xie
- Institute of Environmental Research at Greater Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
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32
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Santonocito R, Tuccitto N, Pappalardo A, Trusso Sfrazzetto G. Smartphone-Based Dopamine Detection by Fluorescent Supramolecular Sensor. Molecules 2022; 27:7503. [PMID: 36364331 PMCID: PMC9654496 DOI: 10.3390/molecules27217503] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 08/26/2023] Open
Abstract
Supramolecular recognition of dopamine by two quinoxaline cavitands was studied in solution by fluorescence titrations, ESI-MS and ROESY measurements. In addition, the tetraquinoxaline cavitand was dropped onto a siloxane-based polymeric solid support, obtaining a sensor able to detect dopamine in a linear range of concentrations 10 Mm-100 pM, with a detection limit of 1 pM, much lower than the normal concentration values in the common human fluids (plasma, urine and saliva), by using a simple smartphone as detector. This sensor shows also good selectivity for dopamine respect to the other common analytes contained in a saliva sample and can be reused after acid-base cycles, paving the way for the realization of real practical sensor for human dopamine detection.
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Affiliation(s)
- Rossella Santonocito
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95100 Catania, Italy
| | - Nunzio Tuccitto
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95100 Catania, Italy
- Laboratory for Molecular Surfaces and Nanotechnology—CSGI, 95125 Catania, Italy
| | - Andrea Pappalardo
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95100 Catania, Italy
- National Interuniversity Consortium for Materials Science and Technology (I.N.S.T.M.) Research Unit of Catania, 95125 Catania, Italy
| | - Giuseppe Trusso Sfrazzetto
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95100 Catania, Italy
- National Interuniversity Consortium for Materials Science and Technology (I.N.S.T.M.) Research Unit of Catania, 95125 Catania, Italy
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33
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Xing M, Han Y, Zhu Y, Sun Y, Shan Y, Wang KN, Liu Q, Dong B, Cao D, Lin W. Two Ratiometric Fluorescent Probes Based on the Hydroxyl Coumarin Chalcone Unit with Large Fluorescent Peak Shift for the Detection of Hydrazine in Living Cells. Anal Chem 2022; 94:12836-12844. [PMID: 36062507 DOI: 10.1021/acs.analchem.2c02798] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrazine is widely used in industrial and agricultural production, but excessive hydrazine possesses a serious threat to human health and environment. Here two new ratiometric fluorescence probes, DDP and DDC, with the hydroxyl coumarin chalcone unit as the sensing site are developed, which can achieve colorimetric and ratiometric recognition for hydrazine with good sensitivity, excellent selectivity, and anti-interference. The calculated fluorescence limits of detections are 0.26 μM (DDC) and 0.14 μM (DDP). The ratiometric fluorescence response to hydrazine is realized through the adjustment of donor and receptor units in coumarin conjugate structure terminals, accompanied by fluorescence peak shift about 200 nm (DDC, 188 nm; DDP, 229 nm). Stronger electropositivity in the carbon-carbon double bond is helpful to the first phase addition reaction between the probe and hydrazine. Higher phenol activity in the hydroxyl coumarin moiety will facilitate the following dihydro-pyrazole cyclization reaction. In addition, both of these probes realized the convenient detection of hydrazine vapor. The probes were also successfully applied to detect hydrazine in actual water samples, different soils, and living cells.
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Affiliation(s)
- Miaomiao Xing
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Yanyan Han
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Yilin Zhu
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Yatong Sun
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Yanyan Shan
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Kang-Nan Wang
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Qiuxin Liu
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Baoli Dong
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Duxia Cao
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China
| | - Weiying Lin
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong, China.,Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China
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34
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Ding J, Shi J, Sun X, Lu X, Sun X, Wang J, Ye Y, Xu S, Luo X. pH Programmed Optical Sensor Arrays for Cancer Plasma Straightforward Discrimination Based on Protein-Responsive Patterns. Anal Chem 2022; 94:12546-12551. [PMID: 36040197 DOI: 10.1021/acs.analchem.2c03245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Optical cross-reactive sensor arrays inspired by the mammalian olfactory system that can realize straightforward discrimination of plasma from cancer patients hold great potential for point-of-care diseases diagnostics. Herein, a pH programmed fluorescence sensor array based on protein-responsive patterns was designed for straightforward discrimination of different types of cancer plasma. It is worth noting that plasma discrimination can be realized only by programming one nanomaterial using different pH values, which greatly simplifies the programmable design of the sensor array, making it an important highlight of this work. In addition, the mechanism of the pH programmed fluorescence sensor array for protein responsiveness was systematically investigated through molecular docking simulation, fluorescence resonance energy transfer (FRET), and fluorescence lifetime experiments. Most importantly, not only can the differences between plasma from healthy people and and from patients with different cancer species including gastric cancer, liver cancer, breast cancer, and cervical cancer be discriminated by this pH programmed fluorescence sensor array, but also the blind test of unknown plasma samples can be well identified with 100% accuracy, indicating its promising prospect in clinical application.
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Affiliation(s)
- Jiaxiang Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.,College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Jiaheng Shi
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xiaomei Sun
- The Affiliated Hospital of Qingdao University, Qingdao 266003, P. R. China
| | - Xin Lu
- Tianjin Institute for Drug Control, Tianjin 300070, P. R. China
| | - Xicheng Sun
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Junhao Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yuhang Ye
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Shenghao Xu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xiliang Luo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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35
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Qin L, Ren X, Hu K, Wu D, Guo Z, Wang S, Jiang L, Hu Y. Supramolecular host-guest interaction-driven electrochemical recognition for pyrophosphate and alkaline phosphatase analysis. Chembiochem 2022; 23:e202200413. [PMID: 35997506 DOI: 10.1002/cbic.202200413] [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: 07/20/2022] [Revised: 08/20/2022] [Indexed: 11/10/2022]
Abstract
Herein, we report an electrochemical biosensor based on the supramolecular host-guest recognition between cucurbit[7]uril (CB[7]) and L -Phenylalanine-Cu(II) Complex for pyrophosphate (PPi) and alkaline phosphatase (ALP) analysis. First, L -Phe-Cu(II) Complex is simply synthesized by the complexation of Cu(II) (metal node) with L -Phe (bioorganic ligand), which can be immobilized onto CB[7] modified electrode via host-guest interaction of CB[7] and L -Phe. In this process, the signal of the Complex triggered electro-catalytic reduction of H 2 O 2 can be captured. Next, in the view of strong chelation between PPi and Cu(II), a biosensing system of the model "PPi and Cu(II) premixing, then adding L -Phe" is designed and the platform can be applied for PPi analysis well by hampering the formation of L -Phe-Cu(II) Complex. Along with ALP introduction, PPi can be hydrolyzed into orthophosphate (Pi), where abundant Cu(II) ions are released to form L -Phe-Cu(II) Complex, which gives rise to the catalytic reaction of Complex to H 2 O 2 reduction. The quantitative analysis of H 2 O 2 , PPi and ALP activity is achieved successfully and the detection of limits are 0.067 μM, 0.42 μM and 0.09 mU/mL ( S / N =3), respectively. With the merits of high sensitivity and selectivity, cost-effectiveness, and simplification, our developed analytical system has great potential to act on diagnosis and treatment of ALP-related diseases.
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Affiliation(s)
| | | | | | - Di Wu
- Ningbo College of Health Sciences, Chemistry, CHINA
| | | | - Sui Wang
- Ningbo University, Chemistry, CHINA
| | | | - Yufang Hu
- Ningbo University, Chemistry, 818 Fenghua Road,Jiangbei,Ningbo,Zhejiang, 315211, Ningbo, CHINA
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36
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Hu C, Jochmann T, Chakraborty P, Neumaier M, Levkin PA, Kappes MM, Biedermann F. Further Dimensions for Sensing in Biofluids: Distinguishing Bioorganic Analytes by the Salt-Induced Adaptation of a Cucurbit[7]uril-Based Chemosensor. J Am Chem Soc 2022; 144:13084-13095. [PMID: 35850489 PMCID: PMC9335531 DOI: 10.1021/jacs.2c01520] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Insufficient binding selectivity of chemosensors often renders biorelevant metabolites indistinguishable by the widely used indicator displacement assay. Array-based chemosensing methods are a common workaround but require additional effort for synthesizing a chemosensor library and setting up a sensing array. Moreover, it can be very challenging to tune the inherent binding preference of macrocyclic systems such as cucurbit[n]urils (CBn) by synthetic means. Using a novel cucurbit[7]uril-dye conjugate that undergoes salt-induced adaptation, we now succeeded in distinguishing 14 bioorganic analytes from each other through the facile stepwise addition of salts. The salt-specific concentration-resolved emission provides additional information about the system at a low synthetic effort. We present a data-driven approach to translate the human-visible curve differences into intuitive pairwise difference measures. Ion mobility experiments combined with density functional theory calculations gave further insights into the binding mechanism and uncovered an unprecedented ternary complex geometry for CB7. TThis work introduces the non-selectively binding, salt-adaptive cucurbit[n]uril system for sensing applications in biofluids such as urine, saliva, and blood serum.
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Affiliation(s)
- Changming Hu
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz-1, Eggenstein-Leopoldshafen 76344, Germany
| | - Thomas Jochmann
- Department of Computer Science and Automation, Technische Universität Ilmenau, Gustav-Kirchhoff-Str. 2, Ilmenau 98693, Germany
| | - Papri Chakraborty
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz-1, Eggenstein-Leopoldshafen 76344, Germany.,Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, Karlsruhe 76131, Germany
| | - Marco Neumaier
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz-1, Eggenstein-Leopoldshafen 76344, Germany
| | - Pavel A Levkin
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz Platz-1, Eggenstein-Leopoldshafen 76344, Germany
| | - Manfred M Kappes
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz-1, Eggenstein-Leopoldshafen 76344, Germany.,Institute of Physical Chemistry (IPC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, Karlsruhe 76131, Germany
| | - Frank Biedermann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz-1, Eggenstein-Leopoldshafen 76344, Germany
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37
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Qin T, Zhao X, Lv T, Yao G, Xu Z, Wang L, Zhao C, Xu H, Liu B, Peng X. General Method for Pesticide Recognition Using Albumin-Based Host-Guest Ensembles. ACS Sens 2022; 7:2020-2027. [PMID: 35776632 DOI: 10.1021/acssensors.2c00803] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The massive use of pesticides nowadays has led to serious consequences for the environment and public health. Fluorescence analytical methods for pesticides are particularly advantageous with respect to simplicity and portability; however, currently available fluorescence methods (enzyme-based assays and indicator displacement assays) with poor universality are only able to detect few specific pesticides (e.g., organophosphorus). Making use of the multiple flexible and asymmetrical binding sites in albumin, we herein report a set of multicolor albumin-based host-guest ensembles. These ensembles exhibit a universal but distinctive fluorescent response to most of the common pesticides and allow array-based identification of pesticides with high accuracy. Furthermore, the simplicity, portability, and visualization of this method enable on-site determination of pesticides in a practical setting. This albumin host strategy largely expands the toolbox of traditional indicator displacement assays (synthetic macrocycles as hosts), and we expect it to inspire a series of sensor designs for pesticide detection.
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Affiliation(s)
- Tianyi Qin
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China.,Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, 510642 Guangzhou, People's Republic of China
| | - Xiongfei Zhao
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China
| | - Taoyuze Lv
- School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
| | - Guangkai Yao
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, 510642 Guangzhou, People's Republic of China
| | - Zhongyong Xu
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China
| | - Lei Wang
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China
| | - Chen Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, 510642 Guangzhou, People's Republic of China
| | - Hanhong Xu
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, 510642 Guangzhou, People's Republic of China
| | - Bin Liu
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China
| | - Xiaojun Peng
- College of Materials Science and Engineering, Shenzhen University, 518000 Shenzhen, People's Republic of China.,State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, People's Republic of China
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38
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Chen C, Pan Y, Li D, Han Y, Zhang QW, Tian Y. An Intramolecular Charge Transfer-Förster Resonance Energy Transfer Integrated Unimolecular Platform for Two-Photon Ratiometric Fluorescence Sensing of Methionine Sulfoxide Reductases in Live-Neurons and Mouse Brain Tissues. Anal Chem 2022; 94:6289-6296. [PMID: 35412308 DOI: 10.1021/acs.analchem.2c00415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxidative stress in organisms is a factor leading to a series of diseases including tumors and neurological disorders, while methionine sulfoxide reductases (Msrs) may provide an antioxidant and self-repair mechanism through redox cycles of methionine residues in proteins. Thus, it is important to understand the crucial role of Msrs in maintaining the redox homeostasis. However, it remains a great challenge for real-time and quantitative monitoring of Msrs in live systems due to the lack of appropriate sensing tools. Herein, a novel unimolecular platform integrating the intramolecular charge transfer (ICT) and Förster resonance energy transfer (FRET) dual mechanisms was successfully developed. By employing the highly specific Msrs-catalyzed reduction from the electron-withdrawing sulfoxide moiety in the probe to an electron-donating sulfide group, a synergistic ICT-FRET activation process was achieved, leading to a ratiometric fluorescence response toward Msrs with high selectivity, sensitivity, and accuracy. Moreover, benefiting from the favorable features, including mitochondria-targeting, near-infrared two-photon excitation, low cytotoxicity, good stability, and biocompatibility, the probe was successfully used for monitoring mitochondrial Msrs levels in live-neurons, and a positively correlated up-regulation of endogenous Msrs levels under O2•- stimulation was observed for the first time, confirming a Msrs-involved adaptive antioxidant mechanism in neurons. Furthermore, two-photon microscopic imaging of various regions in Alzheimer's disease (AD) mice brains revealed a down-regulated Msrs levels compared with that in normal brains, especially in the cornuammonis of the hippocampus region, which may in turn lead to an aggravation of AD pathogenesis due to the weakened antioxidant and self-repair capability of neurons.
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Affiliation(s)
- Chen Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
| | - Yue Pan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
| | - Dong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
| | - Yujie Han
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
| | - Qi-Wei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
| | - Yang Tian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P.R. China
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