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Alkaş A, Kofsky JM, Sullivan EC, Nebel D, Robertson KN, Capicciotti CJ, Jakeman DL, Johnson ER, Thompson A. BODIPYs α-appended with distyryl-linked aryl bisboronic acids: single-step cell staining and turn-on fluorescence binding with D-glucose. Org Biomol Chem 2024. [PMID: 39188164 DOI: 10.1039/d4ob01013b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Small-molecule sensors that are selective for particular sugars are rare. The synthesis of BODIPYs appended with two boronic acid units is reported, alongside cellular staining/labelling and turn-on fluorescence binding data for carbohydrates. The structural frameworks were designed using computational methods, leaning on the chelation characteristics of bis(boronic acids) and the photophysical properties of BODIPYs. Selective binding to glucose is demonstrated via emission and absorption methods, and the challenges of using NMR data for studying carbohydrate binding are discussed. Furthermore, crystal structures, cell permeability and imaging properties of the BODIPYs appended with two boronic acid units are described. This work presents boronic-acid-appended BODIPYs as a potential framework for tunable carbohydrate sensing and chemical biology staining.
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Affiliation(s)
- Adil Alkaş
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
| | - Joshua M Kofsky
- Department of Chemistry, Department of Biomedical and Molecular Sciences, Department of Surgery, Queen's University, Kingston, K7L 3N6, Canada
| | - Em C Sullivan
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
| | - Daisy Nebel
- Department of Chemistry, Department of Biomedical and Molecular Sciences, Department of Surgery, Queen's University, Kingston, K7L 3N6, Canada
| | - Katherine N Robertson
- Department of Chemistry, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada
| | - Chantelle J Capicciotti
- Department of Chemistry, Department of Biomedical and Molecular Sciences, Department of Surgery, Queen's University, Kingston, K7L 3N6, Canada
| | - David L Jakeman
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
- College of Pharmacy, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Erin R Johnson
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
| | - Alison Thompson
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3, Canada.
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2
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Uğurlu G. FT-IR, FT-raman and UV spectra and ab initio HF and DFT study of conformational analysis, molecular structure and properties of ortho- meta- and para-chlorophenylboronic acid isomers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124111. [PMID: 38457874 DOI: 10.1016/j.saa.2024.124111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024]
Abstract
In this study, the FT-IR, FT-Raman, and UV-Vis spectroscopic properties of three monosubstituted phenylboronic acid derivatives: ortho-chlorophenylboronic acid (o-ClPhBA), meta-chlorophenylboronic acid (m-ClPhBA) and para-chlorophenylboronic acid (p-ClPhBA) molecules are investigated both experimentally and theoretically using Density Functional Theory (B3LYP) and Hartree Fock (HF). In order to find the stable possible conformations of the compounds, the conformational analysis was carried out by running potential energy surface (PES) scan by means of rotation of two structural parameters, the dihedral angles indicated as φ2 (C6-B-O1-H1A) and φ3 (C6-B-O2-H2A), varying from -180° to 180° with an increment of 10° using B3LYP/6-31G level of theory. Also, to determinate the most stable conformer for all the molecules, potential energy curve (PEC) the stable possible conformations on PES scan were investigated as a function of φ1 (C1-C6-B-O1) dihedral angle from 0° up to 180° with an increment of 10° using B3LYP/6-311++G(d,p) and HF/6-311++G(d,p) level of theory. For all the studied compounds, two conformational structures (conformer anti-anti, syn-syn) that did not have imaginary frequency values outside the equilibrium state (conformer anti-syn) were detected theoretically at the both methods. Due to their conformational flexibility, the relative stabilities of the anti-syn, anti-anti, and syn-syn conformers of o-ClPhBA, m-ClPhBA, and p-ClPhBA are 0.0, 4.66, and 6.76 kcal/mol, respectively, at the B3LYP/6-311++G(d,p) level of theory. For the HF/6-311++G(d,p) level of theory, the relative stabilities are 0.00, 4.54, and 6.11 kcal/mol for o-ClPhBA; 0.00, 3.98, and 1.51 kcal/mol for m-ClPhBA; and 0.00, 4.10, and 1.44 kcal/mol for p-ClPhBA, respectively. Some of the determined stable conformations of these molecules are different in symmetry groups. It was observed that the increase in the symmetry was effective in the of molecular properties, especially for vibrational frequencies. The structural parameter, dipole moments (μ), vibrational frequencies, polarizability (α), hyperpolarizability (β), the highest occupied molecular orbital (HOMO), and the lowest unoccupied molecular orbital (LUMO) of the stable conformers were calculated by using Ab initio HF/6-311++G(d,p) and DFT/B3LYP/6-311++G(d,p) level of theory. The assignments of fundamental vibrational modes of the studied molecule were performed based on total energy distribution (TED) analysis.
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3
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Valdes-García J, Zamora-Moreno J, Salomón-Flores MK, Martínez-Otero D, Barroso-Flores J, Yatsimirsky AK, Bazany-Rodríguez IJ, Dorazco-González A. Fluorescence Sensing of Monosaccharides by Bis-boronic Acids Derived from Quinolinium Dicarboxamides: Structural and Spectroscopic Studies. J Org Chem 2023; 88:2174-2189. [PMID: 36735858 DOI: 10.1021/acs.joc.2c02590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Three new diboronic acid-substituted bisquinolinium salts were synthesized, structurally described by single-crystal X-ray diffraction, and studied in-depth as fluorescent receptors for six monosaccharides and two open-chain polyols in water at physiological pH. The dicationic pyridine-2,6-dicarboxamide-based receptors contain two N-quinolinium rings as the fluorescent units covalently linked to three different isomers of phenylboronic acid (ortho, 2; meta, 3; and para, 4) as chelating binding sites for polyols. Additions of glucose/fructose in the micromolar concentration range to receptors 2 and 3 induce significant fluorescence changes, but in the presence of arabinose, galactose, mannose, and xylose, only modest optical changes are observed. This optical change is attributed to a static photoinduced electron transfer mechanism. The meta-diboronic receptor 3 exhibited a high affinity/selectivity toward glucose (K = 3800 M-1) over other monosaccharides including common interfering species such as fructose and mannitol. Based on multiple spectroscopic tools, electrospray ionization high-resolution mass spectrometry, crystal structures, and density functional theory calculations, the binding mode between 3 and glucose is proposed as a 1:1 complex with the glucofuranose form involving a cooperative chelating diboronate binding. These results demonstrate the usefulness of a new set of cationic fluorescent diboronic acid receptors with a strong ability for optical recognition of glucose in the sub-millimolar concentration range.
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Affiliation(s)
- Josue Valdes-García
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - Julio Zamora-Moreno
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - María K Salomón-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México, Toluca 50200, Estado de México, México
| | - Joaquín Barroso-Flores
- Institute of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico.,Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Instituto de Química, Universidad Nacional Autónoma de México, Toluca 50200, Estado de México, México
| | - Anatoly K Yatsimirsky
- Facultad de Química, Universidad Nacional Autónoma de México, México D.F. 04510, México
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Dithiane Based Boronic Acid as a Carbohydrate Sensor in an Aqueous Solution at pH 7.5: Theoretical and Experimental Approach. J Fluoresc 2021; 31:1683-1703. [PMID: 34417944 DOI: 10.1007/s10895-021-02791-4] [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: 02/15/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
Carbohydrate sensing in an aqueous solution remains a very challenging area of interest. Using the idea of covalent reversible interaction between boronic acids and the diol groups in carbohydrates enable us to design a carbohydrate sensor 1-thianthrenylboronic acid (1T), which has high selectivity towards fructose. To elucidate the sensing and binding properties of 1T with sugars, we have incorporated theoretical (DFT and TD-DFT) and spectroscopic techniques. For an optimized geometry, the complete vibrational assignments were done with FT-IR and FT-Raman spectra. Physiochemical parameters were obtained by implementing frontier molecular orbital (FMO) analysis. Further, excited state properties were determined by performing TD-DFT calculations in solvent and these properties were in good agreement with the experiment. The steady state fluorescence measurements with varying concentration of sugars, revealed that the fluorescence intensity of boronic acid is enhanced by studied sugars due to the structural modification. We also noticed remarkable changes in fluorescence lifetimes and quantum yield after adding sugars. The article also reports influence of pH on boronic acid's fluorescence intensity with and without sugars. The fluorescence of boronic acid increases with the increase in pH. These changes are due to acid-base equilibrium of boronic acid and led us to estimate the pKa value of 7.6. All the theoretical and experimental evidences suggested that 1T can be used as a possible fluorescent sensor for fructose. In addition, 1T showed very good affinity for Cu2+ ion with Ka = 150 × 102 M-1, which suggests that 1T can also be used as a chemosensor for Cu2+ ions.
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5
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Shere H, Hill MS, Pécharman AF, Mahon MF. Reactivity of a magnesium diboranate with organic nitriles. Dalton Trans 2021; 50:1283-1292. [PMID: 33393542 DOI: 10.1039/d0dt04016a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A series of complexes generated through reactions of the β-diketiminato magnesium diboranate species, [(BDI)Mg{(n-Bu)pinB-Bpin}] (BDI = HC{(Me)CNDipp}2; Dipp = 2,6-di-iso-propylphenyl), and a variety of organic nitriles are reported. Although, in every case, the diboranate anion acts as a surrogate source of the {Bpin} nucleophile, resulting in B-C bond formation at the electrophilic sp-hydridised nitrile carbon, the resultant compounds display a variable propensity to undergo subsequent reaction with additional nitrile equivalents. This behaviour is rationalised to be a consequence of substituent-dependent modulation in the basicity and resultant electrophilicity of magnesium-coordinated nitrile intermediates.
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Affiliation(s)
- Henry Shere
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | - Michael S Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
| | | | - Mary F Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK.
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6
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Sawayama J, Takeuchi S. Long-Term Continuous Glucose Monitoring Using a Fluorescence-Based Biocompatible Hydrogel Glucose Sensor. Adv Healthc Mater 2021; 10:e2001286. [PMID: 33191660 DOI: 10.1002/adhm.202001286] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/23/2020] [Indexed: 11/11/2022]
Abstract
Fluorescence-based hydrogel glucose sensors with boronic acid-based glucose recognition are promising regarding their potential to improve continuous glucose monitoring by facilitating long-lasting accuracy. However, these sensors typically become encapsulated after implantation, and the dynamic range decreases following long-term implantation and use. Herein, a four-arm polyethylene glycol (PEG) hydrogel is developed with an immobilized glucose-responsive fluorescence dye (GF-PEG-gel); this hydrogel is effective in mitigating foreign body reactions (FBRs) that hinder stable glucose responses in vivo. The GF-PEG-gel attached to an implantable device successfully traces blood glucose concentrations in diabetic model rats for 45 days. A pig experiment shows that the device measures the glucose concentration with an equivalent accuracy to that required for clinically available settings.
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Affiliation(s)
- Jun Sawayama
- Institute of Industrial Science The University of Tokyo 4‐6‐1 Komaba Meguro‐ku Tokyo 153‐8505 Japan
| | - Shoji Takeuchi
- Institute of Industrial Science The University of Tokyo 4‐6‐1 Komaba Meguro‐ku Tokyo 153‐8505 Japan
- Graduate School of Information Science and Technology The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan
- International Research Center for Neurointelligence (WPI‐IRCN) The University of Tokyo Institutes for Advanced Study The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan
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7
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Sęk JP, Kaczmarczyk S, Guńka K, Kowalczyk A, Borys KM, Kasprzak A, Nowicka AM. Boronate-appended polymers with diol-functionalized ferrocene: an effective and selective method for voltammetric glucose sensing. Dalton Trans 2021; 50:880-889. [PMID: 33350427 DOI: 10.1039/d0dt03776a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this research, three types of poly(amidoamine) dendrimers doped with a phenylboronic derivative at different ratios of -B(OH)2 groups to amino groups (-NH2) and one polyethyleneimine (PEI) polymer doped with a phenylboronic acid derivative were used as molecular receptors. The voltammetric glucose detection was based on the difference in the affinity of the tested systems in relation to 2-((ferrocenylmethyl)amino)propane-1,3-diol (Fc-1,3-diol) and glucose. Polymeric phenylboronic compounds were introduced to the electrode surface through an electrodeposition process at a constant potential. The obtained calibration curves were characterized by a wide range of linearity (0.005-100 μM) and low values of the limit of detection reaching even 0.0012 μM. Moreover, the influence of interferents (ascorbic acid, uric acid and fructose) was investigated at two different concentrations. Only fructose had a significant influence on the oxidation signal of ferrocene units, but solely in the case of R-Ph-B(OH)2 (where R = PEI or PAMAM; Ph - phenyl ring) systems with a low content of boron groups, and these systems form complexes with glucose in a stoichiometric ratio of 1 : 1. The reliability of the results was confirmed by determining the percentage of recovery (added glucose vs. labeled glucose). Most of the results met the acceptance criteria (95%-105%), allowing the developed electrochemical sensors to be successfully used for the analysis of real-life samples.
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Affiliation(s)
- Jakub P Sęk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Sabina Kaczmarczyk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Katarzyna Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Agata Kowalczyk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Krzysztof M Borys
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Artur Kasprzak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Anna M Nowicka
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
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8
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Sawayama J, Okitsu T, Nakamata A, Kawahara Y, Takeuchi S. Hydrogel Glucose Sensor with In Vivo Stable Fluorescence Intensity Relying on Antioxidant Enzymes for Continuous Glucose Monitoring. iScience 2020; 23:101243. [PMID: 32629609 PMCID: PMC7306611 DOI: 10.1016/j.isci.2020.101243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/15/2020] [Accepted: 06/02/2020] [Indexed: 01/09/2023] Open
Abstract
Hydrogel glucose sensors with boronic acid-based fluorescence intensity theoretically hold promise to improve in vivo continuous glucose monitoring (CGM) by facilitating long-lasting accuracy. However, these sensors generally degrade after implantation and the fluorescence intensity decreases immediately over time. Herein, we describe a hydrogel glucose sensor with in vivo stability based on boronic acid-based fluorescence intensity, integrating two antioxidant enzymes, superoxide dismutase (SOD), and catalase. These protected the arylboronic acid from being degraded by hydrogen peroxide in vitro and preserved the boronic acid-based fluorescence intensity of the hydrogel glucose sensors in rats for 28 days. These antioxidant enzymes also allowed the hydrogel glucose sensor attached to a homemade semi-implantable CGM device to trace blood glucose concentrations in rats for 5 h with the accuracy required for clinical settings. Hydrogel glucose sensors with boronic acid-based fluorescence intensity containing SOD and catalase could comprise a new strategy for in vivo CGM. The arylboronic acids of hydrogel glucose sensors are sensitive to cleavage by ROS The antioxidant enzymes suppress the degradation of fluorescence effectively in vivo The developed sensor performs CGM with the accuracy required for clinical settings
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Affiliation(s)
- Jun Sawayama
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Teru Okitsu
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Akihiro Nakamata
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Yoshihiro Kawahara
- Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Shoji Takeuchi
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan; Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan; International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo Institutes for Advanced Study, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan.
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9
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Elshaarani T, Yu H, Wang L, Feng J, Li C, Zhou W, Khan A, Usman M, Amin BU, Khan R. Chitosan reinforced hydrogels with swelling-shrinking behaviors in response to glucose concentration. Int J Biol Macromol 2020; 161:109-121. [PMID: 32512091 DOI: 10.1016/j.ijbiomac.2020.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 06/02/2020] [Accepted: 06/02/2020] [Indexed: 10/24/2022]
Abstract
Different hydrogels of poly(acrylamide-co-3-acrylamido phenylboronic acid-co-chitosan grafted maleic acid) (P(AM-co-AAPBA-co-CSMA)s) were synthesized using poly(ethylene glycol) diacrylate (PEGDA) as a crosslinker to serve for glucose sensing and insulin delivery. The structure and morphology of the hydrogels, named as CSPBA were studied by FTIR and SEM, while the mechanical properties were tested using dynamic mechanical analysis (DMA) and universal testing machine. The prepared hydrogels shrinked at low glucose concentration due to the 2:1 boronate-glucose binding, and swelled at high glucose concentration because of 1:1 boronate-glucose complexation. Both binding mechanisms are useful for glucose sensing and insulin delivery. The integration of CSMA into hydrogels network not only enhanced the response to glucose at physiological pH, but also improved the mechanical properties and increased the encapsulation efficiency of the prepared hydrogels. These CSPBA may find potential as implantable hydrogels in applications were continuous glucose monitoring and controlled release is beneficial.
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Affiliation(s)
- Tarig Elshaarani
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China.
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China.
| | - Jingyi Feng
- The First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, 310003, PR China
| | - Chengjiang Li
- The First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, 310003, PR China
| | - Weibin Zhou
- The First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, 310003, PR China
| | - Amin Khan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Muhammad Usman
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Bilal Ul Amin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
| | - Rizwan Khan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, PR China
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10
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Simões EFC, da Silva LP, da Silva JCGE, Leitão JMM. Hypochlorite fluorescence sensing by phenylboronic acid-alizarin adduct based carbon dots. Talanta 2019; 208:120447. [PMID: 31816774 DOI: 10.1016/j.talanta.2019.120447] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 01/02/2023]
Abstract
The selective fluorescence sensing of hypochlorite (ClO-) was achieved at pH 7.4 by a simple analytical procedure through the fluorescence quenching of autoclave synthesized carbon dots (CDs), which used as precursor an adduct formed between 3-aminophenylboronic acid (APBA) and alizarin red S (ARS). The use of this adduct allowed the preparation of CDs with a red shifted emission (560 nm) and excitation in the visible range (490 nm). Quantification of hypochlorite was achieved at physiological pH (pH 7.4) in aqueous solutions by fluorescence quenching with a linearity range of 0-200 μM (limit of detection of 4.47 μM, and limit of quantification of 13.41 μM). The selectivity of hypochlorite sensing was confirmed by comparison with other potential analytes, such as glucose, fructose and hydrogen peroxide. Finally, the validity of the proposed assay was further demonstrated by performing recovery assays in different matrices. Thus, this CDs allows the fluorescent sensing of ClO- with spectral properties more suitable for in vitro/in vivo applications.
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Affiliation(s)
- Eliana F C Simões
- Chemistry Research Unit (CIQUP), Faculdade de Farmácia da Universidade de Coimbra, Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal
| | - Luís Pinto da Silva
- LACOMEPHI, GreenUPorto, Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences of University of Porto, R. Campo Alegre 697, 4169-007, Porto, Portugal; Chemistry Research Unit (CIQUP), Faculty of Sciences of University of Porto, R. Campo Alegre 697, 4169-007, Porto, Portugal
| | - Joaquim C G Esteves da Silva
- LACOMEPHI, GreenUPorto, Department of Geosciences, Environment and Territorial Planning, Faculty of Sciences of University of Porto, R. Campo Alegre 697, 4169-007, Porto, Portugal; Chemistry Research Unit (CIQUP), Faculty of Sciences of University of Porto, R. Campo Alegre 697, 4169-007, Porto, Portugal
| | - João M M Leitão
- Chemistry Research Unit (CIQUP), Faculdade de Farmácia da Universidade de Coimbra, Pólo das Ciências da Saúde, 3000-548, Coimbra, Portugal.
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11
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Ohno Y, Kawakami M, Seki T, Miki R, Seki T, Egawa Y. Cell Adhesive Character of Phenylboronic Acid-Modified Insulin and Its Potential as Long-Acting Insulin. Pharmaceuticals (Basel) 2019; 12:ph12030121. [PMID: 31430994 PMCID: PMC6789584 DOI: 10.3390/ph12030121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/11/2019] [Accepted: 08/13/2019] [Indexed: 11/16/2022] Open
Abstract
Phenylboronic acid (PBA) derivatives have attracted substantial attention owing to their unique character of forming dynamic covalent bonds with polyol compounds. Recent studies have shown interactions between PBA and sugar chains on the cell surface; they have interesting applications for sensors and drug delivery systems. In this study, we prepared phenylboronic acid-modified insulin (PBA-Ins) to evaluate its glucose-lowering activity and cell adhesiveness. In the case of intravenous injection, PBA-Ins showed longer glucose-lowering activity than native insulin. We hypothesized that this prolonged effect was the result of the interaction between the PBA moiety and sugar chains on the cell surface. Red blood cells (RBCs) were used as a cell model, and we confirmed PBA-Ins's affinity for RBCs, which induced RBC agglutination. Interestingly, using an alternative PBA-Ins administration route markedly changed its glucose-lowering activity. Unlike the intravenous injection of PBA-Ins, the subcutaneous injection showed a small effect on glucose level, which indicated that a small amount of PBA-Ins was absorbed into the bloodstream. This suggested the importance of investigating the interaction between the PBA moiety and many types of cells, such as adipocytes, in subcutaneous tissues.
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Affiliation(s)
- Yui Ohno
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Momoko Kawakami
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Tomohiro Seki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Ryotaro Miki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Toshinobu Seki
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Yuya Egawa
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
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12
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Resendez A, Halim MA, Singh J, Webb DL, Singaram B. Boronic acid recognition of non-interacting carbohydrates for biomedical applications: increasing fluorescence signals of minimally interacting aldoses and sucralose. Org Biomol Chem 2017; 15:9727-9733. [PMID: 29130464 DOI: 10.1039/c7ob01893b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
To address carbohydrates that are commonly used in biomedical applications with low binding affinities for boronic acid based detection systems, two chemical modification methods were utilized to increase sensitivity. Modified carbohydrates were analyzed using a two component fluorescent probe based on boronic acid-appended viologen-HPTS (4,4'-o-BBV). Carbohydrates normally giving poor signals (fucose, l-rhamnose, xylose) were subjected to sodium borohydride (NaBH4) reduction in ambient conditions for 1 h yielding the corresponding sugar alcohols from fucose, l-rhamnose and xylose in essentially quantitative yields. Compared to original aldoses, apparent binding affinities were increased 4-25-fold. The chlorinated sweetener and colon permeability marker sucralose (Splenda), otherwise undetectable by boronic acids, was dechlorinated to a detectable derivative by reactive oxygen and hydroxide intermediates by the Fenton reaction or by H2O2 and UV light. This method is specific to sucralose as other common sugars, such as sucrose, do not contain any carbon-chlorine bonds. Significant fluorescence response was obtained for chemically modified sucralose with the 4,4'-o-BBV-HPTS probe system. This proof of principle can be applied to biomedical applications, such as gut permeability, malabsorption, etc.
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Affiliation(s)
- Angel Resendez
- Department of Chemistry and Biochemistry, University of California Santa Cruz, Santa Cruz, CA 95064, USA.
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13
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Numano M, Nagami N, Nakatsuka S, Katayama T, Nakajima K, Tatsumi S, Yasuda N, Hatakeyama T. Synthesis of Boronate‐Based Benzo[
fg
]tetracene and Benzo[
hi
]hexacene via Demethylative Direct Borylation. Chemistry 2016; 22:11574-7. [DOI: 10.1002/chem.201602753] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Misa Numano
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Naoto Nagami
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Soichiro Nakatsuka
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Takazumi Katayama
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Kiichi Nakajima
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Sou Tatsumi
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
| | - Nobuhiro Yasuda
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1, Kouto, Sayo-cho, Sayo-gun Hyogo 679-5198 Japan
| | - Takuji Hatakeyama
- Department of Chemistry School of Science and Technology Kwansei Gakuin University, 2-1 Gakuen, Sanda Hyogo 669-1337 Japan
- Elements Strategy Initiative for Catalysts and Batteries Kyoto University, Katsura Kyoto 615-8520 Japan
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14
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Resendez A, Panescu P, Zuniga R, Banda I, Joseph J, Webb DL, Singaram B. Multiwell Assay for the Analysis of Sugar Gut Permeability Markers: Discrimination of Sugar Alcohols with a Fluorescent Probe Array Based on Boronic Acid Appended Viologens. Anal Chem 2016; 88:5444-52. [PMID: 27116118 DOI: 10.1021/acs.analchem.6b00880] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
With the aim of discerning between different sugar and sugar alcohols of biomedical relevance, such as gut permeability, arrays of 2-component probes were assembled with up to six boronic acid-appended viologens (BBVs): 4,4'-o-BBV, 3,3'-o-BBV, 3,4'-o-BBV, 4,4'-o,m-BBV, 4,7'-o-PBBV, and pBoB, each coupled to the fluorophore 8-hydroxypyrene, 1,3,6-trisulfonic acid trisodium salt (HPTS). These probes were screened for their ability to discriminate between lactulose, l-rhamnose, 3-O-methyl-d-glucose, and xylose. Binding studies of sugar alcohols mannitol, sorbitol, erythritol, adonitol, arabitol, galactitol, and xylitol revealed that diols containing threo-1,2-diol units have higher affinity for BBVs relative diols containing erythro-1,2 units. Those containing both threo-1,2- and 1,3-syn diol motifs showed high affinity for boronic acid binding. Fluorescence from the arrays were examined by principle component analysis (PCA) and linear discriminant analysis (LDA). Arrays with only three BBVs sufficed to discriminate between sugars (e.g., lactulose) and sugar alcohols (e.g., mannitol), establishing a differential probe. Compared with 4,4'-o-BBV, 2-fold reductions in lower limits of detection (LOD) and quantification (LOQ) were achieved for lactulose with 4,7-o-PBBV (LOD 41 μM, LOQ 72 μM). Using a combination of 4,4'-o-BBV, 4,7-o-PBBV, and pBoB, LDA statistically segregated lactulose/mannitol (L/M) ratios from 0.1 to 0.5, consistent with values encountered in small intestinal permeability tests. Another triad containing 3,3'-o-BBV, 4,4'-o-BBV, and 4,7-o-PBBV also discerned similar L/M ratios. This proof-of-concept demonstrates the potential for BBV arrays as an attractive alternate to HPLC to analyze mixtures of sugars and sugar alcohols in biomedical applications and sheds light on structural motifs that make this possible.
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Affiliation(s)
- Angel Resendez
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States
| | - Priera Panescu
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States
| | - Ruth Zuniga
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States
| | - Isaac Banda
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States
| | - Jorly Joseph
- IIRBS, Mahatma Gandhi University , Kottayam, 686560, India
| | - Dominic-Luc Webb
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States.,Department of Medical Sciences, Gastroenterology and Hepatology, Uppsala University , 751 85, Uppsala, Sweden
| | - Bakthan Singaram
- Department of Chemistry and Biochemistry, University of California Santa Cruz , Santa Cruz, California 95064, United States
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15
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Yuan Y, Huang X, Liu S, Yang J, Duan R, Hu X. Determination of hypochlorite by quenching the fluorescence of 1-pyrenylboronic acid in tap water. RSC Adv 2016. [DOI: 10.1039/c5ra23367d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
In neutral conditions, a new probe based on the oxidative conversion of 1-pyrenylboronic acid to 1-hydroxypyrene was established for the fluorescence signaling of practical hypochlorite.
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Affiliation(s)
- Yusheng Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Xin Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Shaopu Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jidong Yang
- College of Chemical and Environmental Engineering
- Chongqing Three Gorges University
- Chongqing 404100
- China
| | - Ruilin Duan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Xiaoli Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University)
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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16
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Liu B, Novikova N, Simpson MC, Timmer MSM, Stocker BL, Söhnel T, Ware DC, Brothers PJ. Lighting up sugars: fluorescent BODIPY–gluco-furanose and –septanose conjugates linked by direct B–O–C bonds. Org Biomol Chem 2016; 14:5205-9. [DOI: 10.1039/c6ob00726k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
O-BODIPY–glucose conjugates are linked through covalent B–O–C(glucose) bonds, and feature a rare instance of the unnatural septanose form of glucose.
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Affiliation(s)
- Bowen Liu
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Nina Novikova
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- School of Chemical and Physical Sciences
| | - M. Cather Simpson
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- School of Chemical and Physical Sciences
| | - Mattie S. M. Timmer
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
| | - Bridget L. Stocker
- The MacDiarmid Institute for Advanced Materials and Nanotechnology
- New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - David C. Ware
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
| | - Penelope J. Brothers
- School of Chemical Sciences
- University of Auckland
- Auckland 1142
- New Zealand
- School of Chemical and Physical Sciences
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17
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Micelle-assisted signaling of peracetic acid by the oxidation of pyreneboronic acid via monomer-excimer switching. Talanta 2015; 141:111-5. [PMID: 25966389 DOI: 10.1016/j.talanta.2015.03.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/21/2015] [Accepted: 03/23/2015] [Indexed: 11/23/2022]
Abstract
A simple fluorescent probe for the industrial oxidant peracetic acid (PAA) was investigated. PAA-assisted oxidative conversion of pyrene-1-boronic acid into 1-hydroxypyrene was used as the signaling tool. Pyreneboronic acid was found to display selective signaling behavior, being more responsive to PAA than to other commonly used practical oxidants such as H2O2 and HOCl. The changes in pyrene monomer fluorescence to excimer were used in the quantitative analysis of PAA. When using the surfactant hexadecyltrimethylammonium bromide as a micellar additive, the signaling of PAA was markedly enhanced. Selective fluorescence signaling of PAA by pyrene-1-boronic acid with a detection limit of 1.5×10(-6)M in aqueous environment was successfully achieved.
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18
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Affiliation(s)
- Xiaolong Sun
- Department
of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | - Tony D. James
- Department
of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
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19
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Kubo T, Kanemori K, Kusumoto R, Kawai T, Sueyoshi K, Naito T, Otsuka K. Simple and effective label-free capillary electrophoretic analysis of sugars by complexation using quinoline boronic acids. Anal Chem 2015; 87:5068-73. [PMID: 25907638 DOI: 10.1021/acs.analchem.5b00998] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An effective separation and detection procedure for sugars by capillary electrophoresis (CE) using a complexation between quinolineboronic acid (QBA) and multiple hydroxyl structure of sugar alcohol is reported. We investigated the variation of fluorescence spectra of a variety of QBAs with sorbitol at a wide range of pH conditions and then found that 5-isoQBA strongly enhanced the fluorescence intensity by the complexation at basic pH conditions. The other sugar alcohols having multiple hydroxyls also revealed the enhancement of the fluorescence intensity with 5-isoQBA, whereas the alternation of the intensity was not found in the sugars such as glucose. After optimization of the 5-isoQBA concentration and pH of the buffered solution in CE analysis, 6 sugar alcohols were successfully separated in the order based on the formation constants with 5-isoQBA, which were calculated from the variation of the fluorescence intensity with each sugar alcohol and 5-isoQBA. Furthermore, the limits of detection for sorbitol and xylitol by the CE method were estimated at 15 and 27 μM, respectively.
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Affiliation(s)
- Takuya Kubo
- †Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koichi Kanemori
- †Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Risa Kusumoto
- †Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Takayuki Kawai
- ‡Laboratory for Integrated Biodevice Unit, Quantitative Biology Center, RIKEN, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kenji Sueyoshi
- §Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Toyohiro Naito
- †Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koji Otsuka
- †Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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20
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Lacina K, Skládal P, James TD. Boronic acids for sensing and other applications - a mini-review of papers published in 2013. Chem Cent J 2014; 8:60. [PMID: 25371705 PMCID: PMC4218984 DOI: 10.1186/s13065-014-0060-5] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 10/06/2014] [Indexed: 12/20/2022] Open
Abstract
Boronic acids are increasingly utilised in diverse areas of research. Including the interactions of boronic acids with diols and strong Lewis bases as fluoride or cyanide anions, which leads to their utility in various sensing applications. The sensing applications can be homogeneous assays or heterogeneous detection. Detection can be at the interface of the sensing material or within the bulk sample. Furthermore, the key interaction of boronic acids with diols allows utilisation in various areas ranging from biological labelling, protein manipulation and modification, separation and the development of therapeutics. All the above uses and applications are covered by this mini-review of papers published during 2013.
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Affiliation(s)
- Karel Lacina
- />CEITEC, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
- />Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY UK
| | - Petr Skládal
- />CEITEC, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
- />Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic
| | - Tony D James
- />Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY UK
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