1
|
Yang RP, Tang Q, Yi HL, Tao Z, Xiao X, Zhao AT, Huang Y. A supramolecular fluorescence sensor array for the differentiation of multiple anions and prediction of iodine in artificial urine using machine learning. Mikrochim Acta 2024; 191:401. [PMID: 38884887 DOI: 10.1007/s00604-024-06489-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/04/2024] [Indexed: 06/18/2024]
Abstract
The simultaneous discrimination and detection of multiple anions in an aqueous solution has been a major challenge due to their structural similarity and low charge radii. In this study, we have constructed a supramolecular fluorescence sensor array based on three host-guest complexes to distinguish five anions (F-, Cl-, Br-, I-, and ClO-) in an aqueous solution using anionic-induced fluorescence quenching combined with linear discriminant analysis. Due to the different affinities of the three host-guest complexes for each anion the anion quenching efficiency for each host-guest complex was likewise different, and the five anions were well recognized. The fluorescence sensor array not only distinguished anions at different concentrations (0.5, 10, and 50 µM) with 100% accuracy but also showed good linearity within a certain concentration range. The limit of detection (LOD) was < 0.5 µM. Our interference study showed that the developed sensor array had good anti-interference ability. The practicability of the developed sensor array was also verified by the identification and differentiation of toothpaste brands with different fluoride content and the prediction of the iodine concentration in urine combined with machine learning.
Collapse
Affiliation(s)
- 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
| | - Hong-Ling Yi
- School of Pharmaceutical Sciences, Guizhou University, Guiyang, 550025, China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - An-Ting Zhao
- 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.
| |
Collapse
|
2
|
Shan PH, Pan DW, Li CR, Meng TH, Redshaw C, Tao Z, Xiao X. Selective detection of paraquat by a cucurbit[7]uril-based fluorescent probe. JOURNAL OF PESTICIDE SCIENCE 2024; 49:114-121. [PMID: 38882708 PMCID: PMC11176046 DOI: 10.1584/jpestics.d23-062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/21/2024] [Indexed: 06/18/2024]
Abstract
A simple fluorescent "on-off" system that can be utilized for the selective identification and determination of paraquat (PQ) is presented herein. 1H NMR spectroscopic data indicated that in aqueous solution the alkaloid palmatine can be partially encapsulated within the cucurbit[7]uril (Q[7]) cavity, whereby a stable 1 : 1 host-guest inclusion complex is formed. Other characterization techniques including mass spectrometry, UV-Vis and fluorescence spectroscopy also provided further evidence, and the host-guest inclusion complex was found to exhibit reasonable fluorescence intensity. It is noteworthy that the addition of PQ resulted in quenching the fluorescence of the host-guest inclusion complex, whereas the presence of 12 other pesticides did not significantly affect the fluorescence intensity. Given the linear relationship between the intensity of the fluorescence and the PQ concentration, the PQ concentration in aqueous solution was easily detected. Thus, a new method for identifying and determining the fluorescence quenching of PQ has been developed in this work.
Collapse
Affiliation(s)
- Pei-Hui Shan
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University
| | - Ding-Wu Pan
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University
| | - Chun-Rong Li
- Public Course Teaching Department, Qiannan Medical College for Nationalities
| | - Tie-Hong Meng
- Public Course Teaching Department, Qiannan Medical College for Nationalities
| | - Carl Redshaw
- Chemistry, School of Natural Sciences, University of Hull
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University
| |
Collapse
|
3
|
Shuto M, Sumida R, Yuasa M, Sawada T, Yoshizawa M. A Closed Cavity Strategy for Selective Dipeptide Binding by a Polyaromatic Receptor in Water. JACS AU 2023; 3:2905-2911. [PMID: 37885581 PMCID: PMC10598568 DOI: 10.1021/jacsau.3c00484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 10/28/2023]
Abstract
Precise recognition of peptides is a daunting task owing to the substantial number of available amino acids and their combination into various oligo/polymeric structures in addition to the high hydration of their flexible frameworks. Here, we report the selective recognition of a dipeptide through a closed cavity strategy, in contrast to previous synthetic receptors with open cavities. A polyaromatic receptor with a virtually isolated, hydrophobic cavity exclusively binds one molecule of phenylalanine dipeptide from a mixture with its amino acid and tripeptide in water via multiple CH-π and hydrogen-bonding interactions in the complementary cavity. The binding selectivity persists even in the presence of other dipeptides, such as leucine-leucine, leucine-phenylalanine, tyrosine-phenylalanine, tryptophan-tryptophan, and aspartame, revealed by NMR/MS-based competitive binding experiments. ITC studies reveal that the selective binding of the phenylalanine dipeptide is relatively strong (Ka = 1.1 × 105 M-1) and an enthalpically and entropically favorable process (ΔH = -11.7 kJ mol-1 and TΔS = 17.0 kJ mol-1). In addition, the present receptor can be used for the emission detection of the dipeptide through a combination with a fluorescent dye in water.
Collapse
Affiliation(s)
- Mayu Shuto
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Ryuki Sumida
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Mana Yuasa
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Tomohisa Sawada
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| | - Michito Yoshizawa
- Laboratory for Chemistry
and Life Science, Institute of Innovative
Research, Tokyo Institute of Technology, 4259 Nagatsuta, Yokohama 226-8503, Japan
| |
Collapse
|
4
|
Chen X, Yang N, Ma Y, Yang X, Ma P. A fluorescent probe for detection of Hg 2+ ions constructed by tetramethyl cucurbit[6]uril and 1,2-bis(4-pyridyl)ethene. Beilstein J Org Chem 2023; 19:864-872. [PMID: 37346492 PMCID: PMC10280054 DOI: 10.3762/bjoc.19.63] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
In this paper, tetramethyl cucurbit[6]uril (TMeQ[6]) and 1,2-bis(4-pyridyl)ethene (G) were used to construct a supramolecular fluorescent probe G@TMeQ[6]. The host-guest interaction between TMeQ[6] and G was investigated using 1H NMR spectroscopy, single-crystal X-ray diffraction and various experimental techniques. The results show that TMeQ[6] and G form an inclusion complex with a host-guest ratio of 1:1 and the equilibrium association constant (Ka) was 2.494 × 104 M-1. The G@TMeQ[6] fluorescent probe can sensitively recognize Hg2+ ions by fluorescence enhancement. The linear range is 0.33 × 10-5-1.65 × 10-5 mol·L-1, R2 = 0.9926, and the limit of detection is 4.12 × 10-8 mol·L-1. The fluorescent probe can be used to detect the concentration of Hg2+ ions in aqueous solution, and provides a theoretical basis for the development of new fluorescent probes for detecting heavy metal ions.
Collapse
Affiliation(s)
- Xiaoqian Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Naqin Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Yue Ma
- Guiyang College of Humanities and Science, Guiyang 550025, China
| | - Xinan Yang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Peihua Ma
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| |
Collapse
|
5
|
Wang C, Zou H, Cong H, Huang Y, Tao Z, Redshaw C, Xiao X. Detection of the Fungicide Dodine by means of Host‐Guest Complexation between Cucubit[10]uril and Acridine Orange. ChemistrySelect 2022. [DOI: 10.1002/slct.202201584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng‐hui Wang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
| | - Hong‐qian Zou
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
| | - Hang Cong
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
- Enterprise Technology Center of Guizhou Province Guizhou University Guiyang 550025 China
| | - Ying Huang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
| | - Carl Redshaw
- Department of Chemistry University of Hull Hull HU6 7RX, U.K
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou University Guiyang 550025 China
| |
Collapse
|
6
|
Bojesomo R, Assaf KI, Saadeh HA, Siddig LA, Saleh N. Benzimidazole-Piperazine-Coumarin/Cucurbit[7]uril Supramolecular Photoinduced Electron Transfer Fluorochromes for Detection of Carnosol by Stimuli-Responsive Dye Displacement and p K a Tuning. ACS OMEGA 2022; 7:2356-2363. [PMID: 35071923 PMCID: PMC8772309 DOI: 10.1021/acsomega.1c06287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
A new fluorescent dye (4PBZC) comprising coumarin (C), piperazine (P), and benzimidazole (BZ) was designed, prepared, and complexed to cucurbit[7]uril (CB7) to detect carnosol (CAR), an anti-breast cancer drug, in sub-nanomolar concentrations utilizing the supramolecular indicator displacement assay strategy, the CB7-assisted pK a shift, and the CB7-retarded photoinduced electron transfer process. The host-guest complexation was confirmed by UV-visible absorption, fluorescence, and 1H NMR spectroscopy, which established the binding of 4PBZC to CB7. CB7 preferentially binds the indicator dye (4PBZC) via the protonated BZ residue compared to the neutral BZ one, demonstrated by a higher binding constant of the complex in its di-protonated form, which led to an increase in the pK a of the BZ moiety by ca. 3.0 units after the addition of CB7. In aqueous solution (pH 6), switching the emission signals between 4PBZH+C/CB7 (ON state) and 4PBZC (OFF state) was achieved by displacement of the protonated dye from the cavity of CB7 by the CAR analyte. An efficient sensor was obtained for the sensitive detection of CAR in aqueous solution with a low detection limit of 0.148 ng/mL (0.45 nM) and a linear range from 20 to 627 ng/mL.
Collapse
Affiliation(s)
- Rukayat
S. Bojesomo
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box 15551, Al Ain 15551, United Arab
Emirates
| | - Khaleel I. Assaf
- Department
of Chemistry, Faculty of Science, Al-Balqa
Applied University, Al-Salt 19117, Jordan
| | - Haythem A. Saadeh
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box 15551, Al Ain 15551, United Arab
Emirates
- Department
of Chemistry, School of Science, The University
of Jordan, Amman 11942, Jordan
| | - Lamia A. Siddig
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box 15551, Al Ain 15551, United Arab
Emirates
| | - Na’il Saleh
- Department
of Chemistry, College of Science, United
Arab Emirates University, P.O. Box 15551, Al Ain 15551, United Arab
Emirates
| |
Collapse
|
7
|
Zhang ZH, Lin RL, Yu XY, Chen LX, Tao Z, Xiao X, Wei G, Redshaw C, Liu JX. Encapsulation of l-valine, d-leucine and d-methionine by cucurbit[8]uril. CrystEngComm 2022. [DOI: 10.1039/d1ce01513c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding interactions of cucurbit[8]uril (Q[8]) with l-valine, d-leucine, and d-methionine, both in aqueous solution and solid state, have been studied by 1H NMR spectroscopy and X-ray crystallography.
Collapse
Affiliation(s)
- Zeng-Hui Zhang
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, P. R. China
| | - Rui-Lian Lin
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, P. R. China
| | - Xiang-Yun Yu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, P. R. China
| | - Li-Xia Chen
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, P. R. China
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, P. R. China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, P. R. China
| | - Gang Wei
- CSIRO Mineral Resources, PO Box 218, Lindfield, NSW 2070, Australia
| | - Carl Redshaw
- Department of Chemistry, University of Hull, Hull HU6 7RX, UK
| | - Jing-Xin Liu
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, P. R. China
| |
Collapse
|
8
|
Torul H, Çalık Kayiş E, Boyaci IH, Tamer U. An ECL sensor combined with a paper electrode for the determination of phenylalanine. Analyst 2022; 147:4866-4875. [DOI: 10.1039/d2an01340a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
An electrochemiluminescence (ECL) sensor combined with a paper electrode was developed for the detection of phenylalanine (l-Phe) in blood samples.
Collapse
Affiliation(s)
- Hilal Torul
- Faculty of Pharmacy, Department of Analytical Chemistry, Gazi University, 06330 Ankara, Turkey
| | - Elif Çalık Kayiş
- Faculty of Pharmacy, Department of Analytical Chemistry, Gazi University, 06330 Ankara, Turkey
| | - I. Hakki Boyaci
- Department of Food Engineering, Hacettepe University, Beytepe, 06512 Ankara, Turkey
| | - Ugur Tamer
- Faculty of Pharmacy, Department of Analytical Chemistry, Gazi University, 06330 Ankara, Turkey
| |
Collapse
|
9
|
Chen M, Lv N, Zhao W, Day AI. The Cyclobutanocucurbit[5-8]uril Family: Electronegative Cavities in Contrast to Classical Cucurbituril while the Electropositive Outer Surface Acts as a Crystal Packing Driver. Molecules 2021; 26:7343. [PMID: 34885923 PMCID: PMC8659056 DOI: 10.3390/molecules26237343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022] Open
Abstract
The structural parameters for the cyclobutanoQ[5-8] family were determined through single crystal X-ray diffraction. It was found that the electropositive cyclobutano methylene protons (CH2) are important in forming interlinking crystal packing arrangements driven by the dipole-dipole interactions between these protons and the portal carbonyl O of a near neighbor. This type of interaction was observed across the whole family. Electrostatic potential maps also confirmed the electropositive nature of the cyclobutano CH2 but, more importantly, it was established that the cavities are electronegative in contrast to classical Q[5-8], which are near neutral.
Collapse
Affiliation(s)
- Minghua Chen
- College of Biology and Chemistry, Xingyi Normal University For Nationalities, Xingyi 562400, China; (M.C.); (N.L.)
| | - Naixia Lv
- College of Biology and Chemistry, Xingyi Normal University For Nationalities, Xingyi 562400, China; (M.C.); (N.L.)
| | - Weiwei Zhao
- Pharmaron Beijing Co., Ltd., Beijing 100176, China;
| | - Anthony I. Day
- Chemistry, School of Science, University of New South Wales Canberra, Australian Defence Force Academy, Canberra, ACT 2600, Australia
| |
Collapse
|
10
|
Alışık F, Burç M, Titretir Duran S, Güngör Ö, Cengiz MA, Köytepe S. Development of Gum-Arabic-based polyurethane membrane-modified electrodes as voltammetric sensor for the detection of phenylalanine. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03605-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
11
|
Xu WT, Luo Y, Zhao WW, Liu M, Luo GY, Fan Y, Lin RL, Tao Z, Xiao X, Liu JX. Detecting Pesticide Dodine by Displacement of Fluorescent Acridine from Cucurbit[10]uril Macrocycle. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:584-591. [PMID: 33377764 DOI: 10.1021/acs.jafc.0c05577] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
According to a simple guest-replacement fluorescence turn-on mechanism, we constructed a fluorescent probe system based on cucurbit[10]uril (Q[10]) and protonated acridine (AD) to detect the pesticide dodine (DD). Formation of a homoternary inclusion complex AD2@Q[10] in both aqueous solution and solid state was studied by means of 1H NMR spectroscopy and X-ray crystallography. Although AD can emit strong fluorescence in aqueous solution, the homoternary inclusion complex AD2@Q[10] does not exhibit any fluorescence. Upon the addition of the pesticide DD into the aqueous solution of AD2@Q[10], the AD molecules in the Q[10] cavity are displaced by the pesticide DD, and strong fluorescence recovers. The fluorescent probe system based on Q[10] and AD provided a wide determination of DD from 0 to 4.0 × 10-5 mol·L-1 with a low limit of detection of 1.827 × 10-6 mol·L-1. The guest-replacement fluorescence turn-on mechanism is also confirmed by 1H NMR spectroscopy. Further, the fluorescent probe can directly detect DD residues in real agricultural products, and obvious fluorescence signal was observed under UV irradiation.
Collapse
Affiliation(s)
- Wei-Tao Xu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Yang Luo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Wei-Wei Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Ming Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Guang-Yan Luo
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Ying Fan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Rui-Lian Lin
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| | - Zhu Tao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Xin Xiao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang 550025, China
| | - Jing-Xin Liu
- College of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan 243002, China
| |
Collapse
|
12
|
Roy N, Ghosh B, Roy D, Bhaumik B, Roy MN. Exploring the Inclusion Complex of a Drug (Umbelliferone) with α-Cyclodextrin Optimized by Molecular Docking and Increasing Bioavailability with Minimizing the Doses in Human Body. ACS OMEGA 2020; 5:30243-30251. [PMID: 33251458 PMCID: PMC7689913 DOI: 10.1021/acsomega.0c04716] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/04/2020] [Indexed: 05/10/2023]
Abstract
In this study, umbelliferone and α-cyclodextrin host molecules have been mixed up through a coprecipitation method to prepare a supramolecular complex to provide physical insights into the formation and stability of the inclusion complex (IC). The prepared hybrid was characterized by 1H nuclear magnetic resonance (1H NMR), Fourier transform infrared (FTIR) spectroscopy, electrospray ionization (ESI) mass spectrometry, DSC, and fluorescence spectroscopic studies. Job's plot provides a stoichiometric ratio of 1:1 and the Benesi-Hildebrand double reciprocal plot gives binding constant values using fluorescence spectroscopic titrations and the ESI mass data support the experimental observations. The results of molecular modeling were systematically analyzed to validate the inclusion complexation. In preliminary computational screening, α-cyclodextrin IC of umbelliferone was found to be quite stable based on the docking score, binding free energies, and dynamic simulations. In addition, the results obtained from 1H NMR and FTIR spectroscopy studies supported the inclusion complexation phenomenon. The results obtained from computational studies were found to be consistent with the experimental data to ascertain the encapsulation of umbelliferone into α-cyclodextrin.
Collapse
Affiliation(s)
- Niloy Roy
- Department
of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Biswajit Ghosh
- Department
of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Debadrita Roy
- Department
of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Biswajit Bhaumik
- Department
of Chemistry, Surya Sen Mahavidyalaya, Jalpaiguri 734004, India
| | - Mahendra Nath Roy
- Department
of Chemistry, University of North Bengal, Darjeeling 734013, India
| |
Collapse
|
13
|
Xu W, Feng H, Zhao W, Huang C, Redshaw C, Tao Z, Xiao X. Amino acid recognition by a fluorescent chemosensor based on cucurbit[8]uril and acridine hydrochloride. Anal Chim Acta 2020; 1135:142-149. [PMID: 33070851 DOI: 10.1016/j.aca.2020.09.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/26/2020] [Accepted: 09/13/2020] [Indexed: 01/16/2023]
Abstract
A new fluorescent chemosensor comprised of cucurbit[8]uril (Q[8]) and acridine hydrochloride (AC) has been designed and utilized for the recognition of amino acids. The AC was encapsulated by the Q[8] cavity and formed a 1:2 host-guest inclusion complex both in solution (aqueous) and in the solid-state. Whilst free AC is known to be strongly fluorescent, this strong fluorescence was quenched in the inclusion complex Q [8]-AC. This non-fluorescent complex Q[8]-AC was capable of serving as a fluorescence "off-on" probe, and was able to recognize either L-Phe or L-Trp via the competitive interaction between L-Phe or L-Trp. Moreover, the pH responsive nature of the probe allowed for the detection of basic amino acids, namely L-Arg, L-His, or L-Lys). As a result, a fluorescence method for the detection of five amino acids using a single system has been developed.
Collapse
Affiliation(s)
- Weitao Xu
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Huaming Feng
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Weiwei Zhao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Chunhua Huang
- National Research Center for Geoanalysis, China Geological Survey, Beijing, 100037, China
| | - Carl Redshaw
- Department of Chemistry and Biochemistry, University of Hull, Hull, HU6 7RX, UK
| | - Zhu Tao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China
| | - Xin Xiao
- Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China.
| |
Collapse
|
14
|
A Review on Electrochemical Sensors and Biosensors Used in Phenylalanine Electroanalysis. SENSORS 2020; 20:s20092496. [PMID: 32354070 PMCID: PMC7249663 DOI: 10.3390/s20092496] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/23/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022]
Abstract
Phenylalanine is an amino acid found in breast milk and in many foods, being an essential nutrient. This amino acid is very important for the human body because it is transformed into tyrosine and, subsequently, into catecholamine neurotransmitters. However, there are individuals who were born with a genetic disorder called phenylketonuria. The accumulation of phenylalanine and of some metabolites in the body is dangerous and may cause convulsions, brain damage and mental retardation. Determining the concentration of phenylalanine in different biologic fluids is very important because it can provide information about the health status of the individuals envisaged. Since such determinations may be made by using electrochemical sensors and biosensors, numerous researchers have developed such sensors for phenylalanine detection and different sensitive materials were used in order to improve the selectivity, sensitivity and detection limit. The present review aims at presenting the design and performance of some electrochemical bio (sensors) traditionally used for phenylalanine detection as reported in a series of relevant scientific papers published in the last decade.
Collapse
|