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Geng F, Liu X, Wei T, Wang Z, Liu J, Shao C, Liu G, Xu M, Feng L. An alkaline phosphatase-induced immunosensor for SARS-CoV-2 N protein and cardiac troponin I based on the in situ fluorogenic self-assembly between N-heterocyclic boronic acids and alizarin red S. SENSORS AND ACTUATORS. B, CHEMICAL 2023; 378:133121. [PMID: 36514318 PMCID: PMC9731814 DOI: 10.1016/j.snb.2022.133121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/25/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Alkaline phosphatase (ALP)-induced in situ fluorescent immunosensor is less investigated and reported. Herein, a high-performance ALP-labeled in situ fluorescent immunoassay platform was constructed. The developed platform was based on a fluorogenic self-assembly reaction between pyridineboronic acid (PyB(OH)2) and alizarin red S (ARS). We first used density functional theory (DFT) to theoretically calculate the changes of Gibbs free energy of the used chemicals before and after the combination and simulated the electrostatic potential on its' surfaces. The free ARS and PyB(OH)2 exist alone, neither emits no fluorescence. However, the ARS/PyB(OH)2 complex emits strong fluorescence, which could be effectively quenched by PPi based on the stronger affinity between PPi and PyB(OH)2 than that of ARS and PyB(OH)2. PyB(OH)2 coordinated with ARS again in the presence of ALP due to the ALP-catalyzed hydrolysis of PPi, and correspondingly, the fluorescence was restored. We chose cTnI and SARS-CoV-2 N protein as the model antigen to construct ALP-induced immunosensor, which exhibited a wide dynamic range of 0-175 ng/mL for cTnI and SARS-CoV-2 N protein with a low limit of detection (LOD) of 0.03 ng/mL and 0.17 ng/mL, respectively. Moreover, the proposed immunosensor was used to evaluate cTnI and SARS-CoV-2 N protein level in serum with satisfactory results. Consequently, the method laid the foundation for developing novel fluorescence-based ALP-labeled ELISA technologies in the early diagnosis of diseases.
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Affiliation(s)
- Fenghua Geng
- Key Laboratory of Coal Processing & Efficient Utilization of Ministry of Education, National Engineering Research Center of Coal Preparation & Purification; School of Chemical Engineering & Technology, China University of Mining & Technology, Xuzhou 221116, China
- Henan Key Laboratory of Biomolecular Recognition & Sensing, College of Chemistry & Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing & Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Xiaoxue Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Tingwen Wei
- College of Chemistry & Material Science, Huaibei Normal University, Huaibei, 235000, China
| | - Zaixue Wang
- Key Laboratory of Coal Processing & Efficient Utilization of Ministry of Education, National Engineering Research Center of Coal Preparation & Purification; School of Chemical Engineering & Technology, China University of Mining & Technology, Xuzhou 221116, China
| | - Jinhua Liu
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), School of Flexible Electronics (Future Technologies), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China
| | - Congying Shao
- College of Chemistry & Material Science, Huaibei Normal University, Huaibei, 235000, China
| | - Gen Liu
- College of Chemistry & Material Science, Huaibei Normal University, Huaibei, 235000, China
| | - Maotian Xu
- Henan Key Laboratory of Biomolecular Recognition & Sensing, College of Chemistry & Chemical Engineering, Henan Joint International Research Laboratory of Chemo/Biosensing & Early Diagnosis of Major Diseases, Shangqiu Normal University, Shangqiu, 476000, China
| | - Li Feng
- Key Laboratory of Coal Processing & Efficient Utilization of Ministry of Education, National Engineering Research Center of Coal Preparation & Purification; School of Chemical Engineering & Technology, China University of Mining & Technology, Xuzhou 221116, China
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2
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Marcus model-based analysis of the photo-quenching mechanism of a boronic acid fluorophore: water concentration dependence of electron transfer rate. ANAL SCI 2023; 39:213-220. [PMID: 36436126 DOI: 10.1007/s44211-022-00222-3] [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: 09/08/2022] [Accepted: 11/14/2022] [Indexed: 11/28/2022]
Abstract
The photo-quenching mechanism of 2-(4-phenylboronic acid)-1-pyrenemethamide (C1-APB), which has potential application as a saccharide-recognition sensor, was investigated. By performing temperature-dependent time-resolved photoluminescence measurements, we determined the mechanism responsible for the photo-quenching properties of C1-APB to be a photoinduced electron transfer (PET). Moreover, the dependence of the electron transfer rate (kPET) on the solvent water concentration was explored in detail, and it was found that kPET increased by many orders of magnitude with increasing water concentrations. This phenomenon was analyzed using the Marcus model, in which the electron transfer can be represented by a potential diagram involving the potential barrier (ΔGa) and frequency factor (A). With the aid of temperature-dependent measurements, the contribution of ΔGa and A to the increase in kPET was successfully analyzed independently, which allowed us to discuss the effect of water molecule orientation and change in molecular structure of C1-APB. The temperature-dependence measurements performed in this study offer a powerful research tool for investigating the PET process, and will contribute to the development of molecular recognition fluorescent sensors.
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Valenzuela SA, Crory HSN, Yao C, Howard JR, Saucedo G, Silva AP, Anslyn EV. A Colorimetric Method for Quantifying
Cis
and
Trans
Alkenes Using an Indicator Displacement Assay. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Stephanie A. Valenzuela
- Department of Chemistry University of Texas at Austin 100 E 24th Street, Norman Hackerman Building Room 114A Austin TX 78712 USA
| | - Hannah S. N. Crory
- School of Chemistry and Chemical Engineering Queen's University Belfast Stranmillis Road Belfast BT9 5AG UK
| | - Chao‐Yi Yao
- School of Chemistry and Chemical Engineering Queen's University Belfast Stranmillis Road Belfast BT9 5AG UK
| | - James R. Howard
- Department of Chemistry University of Texas at Austin 100 E 24th Street, Norman Hackerman Building Room 114A Austin TX 78712 USA
| | - Gabriel Saucedo
- Department of Chemistry University of Texas at Austin 100 E 24th Street, Norman Hackerman Building Room 114A Austin TX 78712 USA
| | - A. Prasanna Silva
- School of Chemistry and Chemical Engineering Queen's University Belfast Stranmillis Road Belfast BT9 5AG UK
| | - Eric V. Anslyn
- Department of Chemistry University of Texas at Austin 100 E 24th Street, Norman Hackerman Building Room 114A Austin TX 78712 USA
- School of Chemistry and Chemical Engineering Queen's University Belfast Stranmillis Road Belfast BT9 5AG UK
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4
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Valenzuela SA, Crory HSN, Yao CY, Howard JR, Saucedo G, de Silva AP, Anslyn EV. A Colorimetric Method for Quantifying Cis and Trans Alkenes Using an Indicator Displacement Assay. Angew Chem Int Ed Engl 2021; 60:13819-13823. [PMID: 33723888 DOI: 10.1002/anie.202101004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/12/2021] [Indexed: 11/10/2022]
Abstract
A colorimetric indicator displacement assay (IDA) amenable to high-throughput experimentation was developed to determine the percentage of cis and trans alkenes. Using 96-well plates two steps are performed: a reaction plate for dihydroxylation of the alkenes followed by an IDA screening plate consisting of an indicator and a boronic acid. The dihydroxylation generates either erythro or threo vicinal diols from cis or trans alkenes, depending upon their syn- or anti-addition mechanisms. Threo diols preferentially associate with the boronic acid due to the creation of more stable boronate esters, thus displacing the indicator to a greater extent. The generality of the protocol was demonstrated using seven sets of cis and trans alkenes. Blind mixtures of cis and trans alkenes were made, resulting in an average error of ±2 % in the percentage of cis or trans alkenes, and implementing E2 and Wittig reactions gave errors of ±3 %. Furthermore, we developed variants of the IDA for which the color may be tuned to optimize the response for the human eye.
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Affiliation(s)
- Stephanie A Valenzuela
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building Room 114A, Austin, TX, 78712, USA
| | - Hannah S N Crory
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Chao-Yi Yao
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - James R Howard
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building Room 114A, Austin, TX, 78712, USA
| | - Gabriel Saucedo
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building Room 114A, Austin, TX, 78712, USA
| | - A Prasanna de Silva
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
| | - Eric V Anslyn
- Department of Chemistry, University of Texas at Austin, 100 E 24th Street, Norman Hackerman Building Room 114A, Austin, TX, 78712, USA.,School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast, BT9 5AG, UK
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Tsuchido Y, Kojima S, Sugita K, Fujiwara S, Hashimoto T, Hayashita T. Effect of Spacer Length in Pyrene-Modified-Phenylboronic Acid Probe/CyD Complexes on Fluorescence-based Recognition of Monosaccharides in Aqueous Solution. ANAL SCI 2021; 37:721-726. [PMID: 33455966 DOI: 10.2116/analsci.20scp08] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The chemical sensing of saccharides is of importance for the diagnosis of diabetes. Various enzymatic sensors have been developed, but their heat and pH instability issues need to be resolved. In this regard, the development of artificial saccharide sensors with high stability is attracting attention. We have designed a heat- and pH-stable supramolecular inclusion complex system composed of cyclodextrin (CyD) as a host and a phenylboronic acid (PB) probe possessing pyrene as a fluorescent guest. Several probes possessing alkyl spacers having various lengths between the PB and the pyrene moiety, Cn-APB (n = 1 - 4), were newly synthesized and evaluated with respect to their monosaccharide recognition ability on the basis of the fluorescence response through the cyclic esterification of monosaccharide and PB. These Cn-APB/CyD supramolecular inclusion complexes have exhibited a selective fluorescence response towards fructose in aqueous solution based on the photo-induced electron transfer mechanism. The spacer length of the alkyl group in Cn-APB significantly affects the affinity for saccharides. With respect to the complex between C4-APB and PB-modified CyD (3-PB-γ-CyD), it was found that the supramolecular inclusion complexes had high selectivity for glucose with significant fluorescence enhancement. These results indicate that the lengths of the alkyl spacers in the probe molecules are important to control the recognition of saccharides in aqueous solution.
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Affiliation(s)
- Yuji Tsuchido
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University.,Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns)
| | - Shohei Kojima
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
| | - Ko Sugita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
| | - Shoji Fujiwara
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University.,Department of Material and Life Chemistry, Faculty of Engineering, Kanagawa University
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University
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Tsuchido Y, Nodomi N, Hashimoto T, Hayashita T. Micelle-Type Sensor for Saccharide Recognition by Using Boronic Acid Fluorescence Amphiphilic Probe and Surfactants. SOLVENT EXTRACTION AND ION EXCHANGE 2021. [DOI: 10.1080/07366299.2021.1876988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Yuji Tsuchido
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University (TWIns), Tokyo, Japan
| | - Nana Nodomi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, Tokyo, Japan
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Abstract
3D hierarchical graphitic carbon nanowalls encapsulating cobalt nanoparticles HPC-Co were prepared in high yield from solid-state pyrolysis of cobalt 2,2′-bipyridine chloride complex. Annealing of HPC-Co in air gave HPC-CoO, which consists of a mixture of crystallite Co3O4 nanospheres and nanorods bursting out of mesoporous carbon. Both nanocomposites were fully characterized using SEM, TEM, BET, and powder X-ray diffraction. The elemental composition of both nanocomposites examined using SEM elemental mapping and TEM elemental mapping supports the successful doping of nitrogen. The powder X-ray diffraction studies supported the formation of hexagonal cobalt in HPC-Co, and cubic crystalline Co3O4 with cubic cobalt in HPC-CoO. HPC-Co and HPC-CoO can be used as a modified carbon electrode in cyclic voltammetry experiments for the detection of fructose with limit of detection LOD 0.5 mM. However, the single-frequency impedimetric method has a wider dynamic range of 8.0–53.0 mM and a sensitivity of 24.87 Ω mM−1 for the electrode modified with HPC-Co and 8.0–87.6 mM and a sensitivity of 1.988 Ω mM−1 for the electrode modified with HPC-CoO. The LOD values are 3 and 4 mM, respectively. The effect of interference increases in the following order: ascorbic acid, ethanol, urea, and glucose. A simple method was used with negligible interference from glucose to measure the percentage of fructose in a corn syrup sample with an HPC-CoO electrode. A specific capacitance of 47.0 F/g with 76.6% retentivity was achieved for HPC-Co and 28.2 F/g with 87.9% for HPC-CoO for 3000 charge–discharge cycles. Thus, (1) has better sensitivity and specific capacitance than (2), because (1) has a higher surface area and less agglomerated cobalt nanoparticles than (2).
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8
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Accardo JV, McClure ER, Mosquera MA, Kalow JA. Using Visible Light to Tune Boronic Acid–Ester Equilibria. J Am Chem Soc 2020; 142:19969-19979. [DOI: 10.1021/jacs.0c08551] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Joseph V. Accardo
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Emily R. McClure
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Martín A. Mosquera
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Julia A. Kalow
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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