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Wei X, Fan J, Hao Y, Dong H, Zhang Y, Zhou Y, Xu M. Electrochemiluminescence and electrochemical dual-mode detection of BACE1 activity based on the assembly of peptide and luminol co-functionalized silver nanoparticles induced by cucurbit[8]uril. Talanta 2024; 266:124904. [PMID: 37473471 DOI: 10.1016/j.talanta.2023.124904] [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: 03/08/2023] [Revised: 06/27/2023] [Accepted: 07/01/2023] [Indexed: 07/22/2023]
Abstract
A novel electrochemiluminescence (ECL) and electrochemical dual-mode sensor was developed for detecting the activity of beta-site amyloid precursor protein cleaving enzyme 1 (BACE1) and screening its inhibitor. Specifically, the adamantane (ADA)-functionalized peptide (P1), a designed substrate peptide for BACE1, was immobilized on the electrode surface via host-guest interaction between β-cyclodextrin (β-CD) and ADA. The aggregation of the peptide (P2) and luminol co-functionalized silver nanoparticles could be induced by cucurbit [8]uril (CB[8] due to the ability of CB[8] to accommodate two aromatic residues simultaneously. The obtained (CB[8]-P2-AgNPs-luminol)n aggregates with both ECL and electrochemical activity, used as the dual-mode signal probe, could be captured to the N-terminal of P1 through CB[8]. Once the substrate P1 was cleaved by BACE1, the probe-binding polypeptide fragment detached from the electrode surface, resulting in a remarkable decrease in the ECL and electrochemical signals. Taking advantage of the signal amplification function of the signal probe, the sensitive dual-mode assay for BACE1 activity can be achieved with the low detection limits of 33.11 pM for ECL and 53.19 pM for electrochemical mode. The superior analytical performance of this novel dual-mode sensor toward BACE1 activity suggested the promising application in early diagnosis of Alzheimer's disease (AD).
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Affiliation(s)
- Xiuhua Wei
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Jie Fan
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Yuanqiang Hao
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Hui Dong
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Yintang Zhang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Yanli Zhou
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Maotian Xu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China.
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2
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Huang SZ, Wei KN, Yang RP, Yi HL, Tang Q, Tao Z, Huang Y. A white-light-emitting sensor array based on cucurbit[8]uril for quantitative detection of multicomponent nitroaniline isomers. Mikrochim Acta 2023; 190:460. [PMID: 37924338 DOI: 10.1007/s00604-023-06040-2] [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: 08/17/2023] [Accepted: 10/10/2023] [Indexed: 11/06/2023]
Abstract
A white-light-emitting supramolecular complex through supramolecular interactions has been assembled; the white luminescent supramolecular complex exhibits two emission spectra. Based on this, a dual-channel white-light array sensor was constructed. The results show that it can quickly identify and detect nitroaniline isomer pollutants (p-nitroaniline, m-nitroaniline, o-nitroaniline). When these three nitroaniline isomers were added to the supramolecular white-light array sensor, the fluorescence intensity of the white-light complex decreased to varying degrees. Linear discriminant analysis (LDA) showed that the supramolecular white-light array sensor could recognize and distinguish three nitroaniline isomers and could classify mixtures containing different concentrations. Factor 1 of the array had a good linear relationship with the concentration of pollutants, and the detection limit (LOD) was as low as 0.7 μM. The method has good reproducibility and stability. In addition, it can also qualitatively detect the nitroaniline isomers in river water and contaminated rice seedling extract. It provides an ideal platform for constructing multiresponse sensors.
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Affiliation(s)
- Shu-Zhen Huang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Kai-Ni Wei
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Ru-Pei Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Hong-Ling Yi
- School of Pharmaceutical Sciences, 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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3
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Jones LM, Super EH, Batt LJ, Gasbarri M, Coppola F, Bhebhe LM, Cheesman BT, Howe AM, Král P, Coulston R, Jones ST. Broad-Spectrum Extracellular Antiviral Properties of Cucurbit[ n]urils. ACS Infect Dis 2022; 8:2084-2095. [PMID: 36062478 PMCID: PMC9578052 DOI: 10.1021/acsinfecdis.2c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Viruses are microscopic pathogens capable of causing disease and are responsible for a range of human mortalities and morbidities worldwide. They can be rendered harmless or destroyed with a range of antiviral chemical compounds. Cucurbit[n]urils (CB[n]s) are a family of macrocycle chemical compounds existing as a range of homologues; due to their structure, they can bind to biological materials, acting as supramolecular "hosts" to "guests", such as amino acids. Due to the increasing need for a nontoxic antiviral compound, we investigated whether cucurbit[n]urils could act in an antiviral manner. We have found that certain cucurbit[n]uril homologues do indeed have an antiviral effect against a range of viruses, including herpes simplex virus 2 (HSV-2), respiratory syncytial virus (RSV) and SARS-CoV-2. In particular, we demonstrate that CB[7] is the active homologue of CB[n], having an antiviral effect against enveloped and nonenveloped species. High levels of efficacy were observed with 5 min contact times across different viruses. We also demonstrate that CB[7] acts with an extracellular virucidal mode of action via host-guest supramolecular interactions between viral surface proteins and the CB[n] cavity, rather than via cell internalization or a virustatic mechanism. This finding demonstrates that CB[7] acts as a supramolecular virucidal antiviral (a mechanism distinct from other current extracellular antivirals), demonstrating the potential of supramolecular interactions for future antiviral disinfectants.
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Affiliation(s)
- Luke M. Jones
- Department
of Materials and The Henry Royce Institute, The University of Manchester, Manchester M19 3PL, United
Kingdom
| | - Elana H. Super
- Department
of Materials and The Henry Royce Institute, The University of Manchester, Manchester M19 3PL, United
Kingdom
| | - Lauren J. Batt
- Department
of Materials and The Henry Royce Institute, The University of Manchester, Manchester M19 3PL, United
Kingdom
| | - Matteo Gasbarri
- Institute
of Materials, Interfaculty Bioengineering
Institute, MXG 030 Lausanne, Switzerland
| | - Francesco Coppola
- Department
of Chemistry, University of Illinois at
Chicago, Chicago, Illinois 60607, United States
| | - Lorraine M. Bhebhe
- Department
of Materials and The Henry Royce Institute, The University of Manchester, Manchester M19 3PL, United
Kingdom
| | - Benjamin T. Cheesman
- Aqdot
Limited, Iconix Park,
London Road, Pampisford, Cambridge CB22 3EG, United Kingdom
| | - Andrew M. Howe
- Aqdot
Limited, Iconix Park,
London Road, Pampisford, Cambridge CB22 3EG, United Kingdom
| | - Petr Král
- Department
of Chemistry, University of Illinois at
Chicago, Chicago, Illinois 60607, United States,Department
of Physics and Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Roger Coulston
- Aqdot
Limited, Iconix Park,
London Road, Pampisford, Cambridge CB22 3EG, United Kingdom
| | - Samuel T. Jones
- Department
of Materials and The Henry Royce Institute, The University of Manchester, Manchester M19 3PL, United
Kingdom,
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4
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Prabodh A, Sinn S, Biedermann F. Analyte sensing with unselectively binding synthetic receptors: virtues of time-resolved supramolecular assays. Chem Commun (Camb) 2022; 58:13947-13950. [DOI: 10.1039/d2cc04831k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Time-resolved supramolecular assays probe analyte-characteristic complexation and decomplexation rates. Consequently, even unselectively binding synthetic receptors can be used for analyte identification and quantification.
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Affiliation(s)
- Amrutha Prabodh
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Stephan Sinn
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
| | - Frank Biedermann
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany
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5
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Warmerdam Z, Kamba BE, Le MH, Schrader T, Isaacs L, Bayer P, Hof F. Binding Methylarginines and Methyllysines as Free Amino Acids: A Comparative Study of Multiple Host Classes*. Chembiochem 2021; 23:e202100502. [PMID: 34758178 PMCID: PMC9299052 DOI: 10.1002/cbic.202100502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/09/2021] [Indexed: 01/18/2023]
Abstract
Methylated free amino acids are an important class of targets for host‐guest chemistry that have recognition properties distinct from those of methylated peptides and proteins. We present comparative binding studies for three different host classes that are each studied with multiple methylated arginines and lysines to determine fundamental structure‐function relationships. The hosts studied are all anionic and include three calixarenes, two acyclic cucurbiturils, and two other cleft‐like hosts, a clip and a tweezer. We determined the binding association constants for a panel of methylated amino acids using indicator displacement assays. The acyclic cucurbiturils display stronger binding to the methylated amino acids, and some unique patterns of selectivity. The two other cleft‐like hosts follow two different trends, shallow host (clip) following similar trends to the calixarenes, and the other more closed host (tweezer) binding certain less‐methylated amino acids stronger than their methylated counterparts. Molecular modelling sheds some light on the different preferences of the various hosts. The results identify hosts with new selectivities and with affinities in a range that could be useful for biomedical applications. The overall selectivity patterns are explained by a common framework that considers the geometry, depth of binding pockets, and functional group participation across all host classes.
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Affiliation(s)
- Zoey Warmerdam
- Department of Chemistry and the Centre for, Advanced Materials and Related Technology, University of Victoria, 3800 Finnerty Rd, V8W 3V6, Victoria, BC, Canada
| | - Bianca E Kamba
- Department of Structural and Medicinal Biochemistry, Universität Duisburg Essen, Universitätstrasse 2, 45141, Essen, Germany
| | - My-Hue Le
- Department of Chemistry, Universität Duisburg Essen, Universitätstrasse 7, 45117, Essen, Germany
| | - Thomas Schrader
- Department of Chemistry, Universität Duisburg Essen, Universitätstrasse 7, 45117, Essen, Germany
| | - Lyle Isaacs
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, College Park, USA
| | - Peter Bayer
- Department of Structural and Medicinal Biochemistry, Universität Duisburg Essen, Universitätstrasse 2, 45141, Essen, Germany
| | - Fraser Hof
- Department of Chemistry and the Centre for, Advanced Materials and Related Technology, University of Victoria, 3800 Finnerty Rd, V8W 3V6, Victoria, BC, Canada
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6
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Ferguson Johns HP, Harrison EE, Stingley KJ, Waters ML. Mimicking Biological Recognition: Lessons in Binding Hydrophilic Guests in Water. Chemistry 2021; 27:6620-6644. [PMID: 33048395 DOI: 10.1002/chem.202003759] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 01/25/2023]
Abstract
Selective molecular recognition of hydrophilic guests in water plays a fundamental role in a vast number of biological processes, but synthetic mimicry of biomolecular recognition in water still proves challenging both in terms of achieving comparable affinities and selectivities. This Review highlights strategies that have been developed in the field of supramolecular chemistry to selectively and non-covalently bind three classes of biologically relevant molecules: nucleotides, carbohydrates, and amino acids. As several groups have systematically modified receptors for a specific guest, an evolutionary perspective is also provided in some cases. Trends in the most effective binding forces for each class are described, providing insight into selectivity and potential directions for future work.
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Affiliation(s)
- Hannah P Ferguson Johns
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Emily E Harrison
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Kyla J Stingley
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Marcey L Waters
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
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7
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Gao R, Yang W, Xu J, Chen L, Yang J, Wang B, Yang B. Host‐Guest Inclusion Complexes of Geraniol and Nerol with Acyclic Cucurbit[n]urils: Preparation, Characterization and Controlled Release. ChemistrySelect 2021. [DOI: 10.1002/slct.202004685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Rui Gao
- R&D Center of China Tobacco Yunnan Industrial Co., Kunming Yunnan 650231 P.R. China
| | - Waixiang Yang
- Faculty of Life Science and Technology Kunming University of Science and Technology, Kunming Yunnan 650500 P.R. China
| | - Jicang Xu
- R&D Center of China Tobacco Yunnan Industrial Co., Kunming Yunnan 650231 P.R. China
| | - Liyuan Chen
- Faculty of Life Science and Technology Kunming University of Science and Technology, Kunming Yunnan 650500 P.R. China
| | - Jing Yang
- Faculty of Life Science and Technology Kunming University of Science and Technology, Kunming Yunnan 650500 P.R. China
| | - Baoxing Wang
- R&D Center of China Tobacco Yunnan Industrial Co., Kunming Yunnan 650231 P.R. China
| | - Bo Yang
- Faculty of Life Science and Technology Kunming University of Science and Technology, Kunming Yunnan 650500 P.R. China
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8
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Xiao S, Jin LY, Wang JP, Sun GY. The mechanism of the selective binding ability between opiate metabolites and acyclic cucurbit[4]uril: an MD/DFT study. Phys Chem Chem Phys 2021; 23:2186-2192. [PMID: 33438686 DOI: 10.1039/d0cp05728b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Subtle changes in molecular structure often lead to significant differences in host-guest interactions, which result in different host-guest recognition capabilities and dynamics behaviours in complex formation. Herein, we reveal the influence of the guest substituents on host-guest molecular recognition by molecular dynamics (MD) simulation and density functional theory (DFT) approaches. The results suggest that the binding energy barrier of acyclic cucurbit[4]uril (ACB[4]) with opiate metabolites gradually decreases. The methyl group in morphine (MOR) and morphine-3-glucuronide (M3G) strengthens the hydrophobicity of the guest, while depressing the energy loss of the desolvation of polar groups (e.g. hydroxyl) inside the ACB[4] cavity. However, in M3G, the 3-glucuronide group located outside the ACB[4] host cavity effectively alleviates the unfavourable desolvation effect of the hydroxyl and increases the binding constant by two orders of magnitude (compared with normorphine (NMOR)). Our findings stressed the essentiality of the binding mode and intermolecular noncovalent interactions in the host-guest selective binding ability.
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Affiliation(s)
- Song Xiao
- Department of Chemistry, Faculty of Science, Yanbian University, Yanji, Jilin 133002, China.
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9
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Amezcua M, El Khoury L, Mobley DL. SAMPL7 Host-Guest Challenge Overview: assessing the reliability of polarizable and non-polarizable methods for binding free energy calculations. J Comput Aided Mol Des 2021; 35:1-35. [PMID: 33392951 PMCID: PMC8121194 DOI: 10.1007/s10822-020-00363-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022]
Abstract
The SAMPL challenges focus on testing and driving progress of computational methods to help guide pharmaceutical drug discovery. However, assessment of methods for predicting binding affinities is often hampered by computational challenges such as conformational sampling, protonation state uncertainties, variation in test sets selected, and even lack of high quality experimental data. SAMPL blind challenges have thus frequently included a component focusing on host-guest binding, which removes some of these challenges while still focusing on molecular recognition. Here, we report on the results of the SAMPL7 blind prediction challenge for host-guest affinity prediction. In this study, we focused on three different host-guest categories-a familiar deep cavity cavitand series which has been featured in several prior challenges (where we examine binding of a series of guests to two hosts), a new series of cyclodextrin derivatives which are monofunctionalized around the rim to add amino acid-like functionality (where we examine binding of two guests to a series of hosts), and binding of a series of guests to a new acyclic TrimerTrip host which is related to previous cucurbituril hosts. Many predictions used methods based on molecular simulations, and overall success was mixed, though several methods stood out. As in SAMPL6, we find that one strategy for achieving reasonable accuracy here was to make empirical corrections to binding predictions based on previous data for host categories which have been studied well before, though this can be of limited value when new systems are included. Additionally, we found that alchemical free energy methods using the AMOEBA polarizable force field had considerable success for the two host categories in which they participated. The new TrimerTrip system was also found to introduce some sampling problems, because multiple conformations may be relevant to binding and interconvert only slowly. Overall, results in this challenge tentatively suggest that further investigation of polarizable force fields for these challenges may be warranted.
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Affiliation(s)
- Martin Amezcua
- Department of Pharmaceutical Sciences, University of California, Irvine, CA, 92697, USA
| | - Léa El Khoury
- Department of Pharmaceutical Sciences, University of California, Irvine, CA, 92697, USA
| | - David L Mobley
- Department of Pharmaceutical Sciences, University of California, Irvine, CA, 92697, USA.
- Department of Chemistry, University of California, Irvine, CA, 92697, USA.
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10
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Prabodh A, Bauer D, Kubik S, Rebmann P, Klärner FG, Schrader T, Delarue Bizzini L, Mayor M, Biedermann F. Chirality sensing of terpenes, steroids, amino acids, peptides and drugs with acyclic cucurbit[n]urils and molecular tweezers. Chem Commun (Camb) 2020; 56:4652-4655. [PMID: 32253396 DOI: 10.1039/d0cc00707b] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Achiral chromophoric hosts, i.e. acyclic cucurbit[n]urils and molecular tweezers, were found to respond with characteristic Circular Dichroism (CD) spectra to the presence of micromolar concentrations of chiral hydrocarbons, terpenes, steroids, amino acids and their derivates, and drugs in water. In favourable cases, this allows for analyte identification or for reaction monitoring.
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Affiliation(s)
- Amrutha Prabodh
- Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology (INT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
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11
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Liu W, Ai H, Meng Z, Isaacs L, Xu Z, Xue M, Yan Q. Interactions between acyclic CB[n]-type receptors and nitrated explosive materials. Chem Commun (Camb) 2019; 55:10635-10638. [PMID: 31429448 DOI: 10.1039/c9cc05117a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The binding ability of acyclic CB[n]-type receptors M1, M2 and macrocyclic CB[7] toward explosive materials was investigated. Acyclic M2 demonstrates an overall better binding and solubilizing ability, and lower fluorescence in the presence of aromatic explosive compounds, suggesting its future application for the detection of harmful explosive materials.
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Affiliation(s)
- Wenjin Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 5 South Zhongguancun Street, Beijing 100081, P. R. China.
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