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Goswami K, Sen Sarma N. "Click" Reaction-Mediated Silk Fibroin-Functionalized Thiol-Branched Graphene Oxide Quantum Dots for Smart Sensing of Tetracycline. ACS OMEGA 2023; 8:21914-21928. [PMID: 37360495 PMCID: PMC10286249 DOI: 10.1021/acsomega.3c01753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023]
Abstract
The abuse of tetracycline (TC) antibiotics causes the accumulation of their residue in the environment, which has an irreversible impact on food safety and human health. In light of this, it is vital to offer a portable, quick, efficient, and selective sensing platform to detect TC instantly. Herein, we have successfully developed a sensor using silk fibroin-decorated thiol-branched graphene oxide quantum dots through a well-known thiol-ene click reaction. It is applied to ratiometric fluorescence sensing of TC in real samples in the linear range of 0-90 nM, with the detection limit of 49.69, 47.76, 55.25, 47.90, and 45.78 nM for deionized water, chicken sample, fish sample, human blood serum, and honey sample, respectively. With the gradual addition of TC to the liquid media, the sensor develops a synergetic luminous effect in which the fluorescence intensity of the nanoprobe steadily declines at 413 nm, while the intensity of a newly emerging peak increases at 528 nm, maintaining a ratio that is dependent on the analyte concentration. The increase of luminescence properties in the liquid media is clearly visible by naked eyes in the presence of 365 nm UV light. The result helps us in building a filter paper strip-based portable smart sensor using an electric circuit comprising a 365 nm LED (light-emitting diode) powered by a mobile phone battery which is attached just below the rear camera of a smartphone. The camera of the smartphone captures the color changes that occur throughout the sensing process and translates into readable RGB data. The dependency of color intensity with respect to the concentration of TC was evaluated by deducing a calibration curve from where the limit of detection was calculated and found to be 0.125 μM. These kinds of gadgets are important for the possible real-time, on-the-spot, quick detection of analytes in situations where high-end approaches are not easily accessible.
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Affiliation(s)
- Kangkan
Jyoti Goswami
- Advanced
Materials Laboratory, Institute of Advanced
Study in Science and Technology, Paschim Boragaon, Guwahati 781035, Assam, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Neelotpal Sen Sarma
- Advanced
Materials Laboratory, Institute of Advanced
Study in Science and Technology, Paschim Boragaon, Guwahati 781035, Assam, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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2
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Reveguk ZV, Sych TS, Polyanichko AM, Chuiko YV, Buglak AA, Kononov AI. Rapid and selective colorimetric determination of L-DOPA in human serum with silver nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122810. [PMID: 37182251 DOI: 10.1016/j.saa.2023.122810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/16/2023]
Abstract
L-DOPA, or l-3,4-dihydroxyphenylalanine is an aromatic amino acid, which plays a significant role in human metabolism as a precursor of important neurotransmitters. We develop a fast and simple colorimetric method for the detection of L-DOPA in biological fluids. The method is based on the reduction of silver ions with L-DOPA and the subsequent formation of L-DOPA stabilized silver nanoparticles (Ag NPs). In this novel approach, L-DOPA works as both reducing and stabilizing agent, which provides selectivity and simplifies the procedure. HR-TEM images show very narrow Ag NPs distribution with an average size of 24 nm. Such sensor design is suggested for the first time. We also calculate vertical ionization potential, vertical electron affinity, and Gibbs free energy change of different ionic forms of L-DOPA and amino acids at the M06-2X/def2-TZVP level for the gas phase in comparison with that of silver. A model of silver ions reduction by aromatic amino acids is proposed: the ionic forms with charge -1 are suggested to reduce silver ions. High selectivity against aromatic amino acids, dopamine and serotonin is achieved by tuning pH and involving two L-DOPA forms with charged both hydroxyphenolate and carboxylate groups in the stabilization of uniform-sized Ag NPs. The method is applicable for the determination of L-DOPA in human serum with the 50 nM limit of detection and the linear range up to 5 μM. Ag NPs formation and coloring the solution proceeds in a few minutes. The suggested colorimetric method has potential application in clinical trials.
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Affiliation(s)
- Zakhar V Reveguk
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia.
| | - Tomash S Sych
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia
| | - Alexander M Polyanichko
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia
| | - Yana V Chuiko
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia
| | - Andrey A Buglak
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia; Institute of Physics, Kazan Federal University, 420008 Kazan, Russia.
| | - Alexei I Kononov
- Department of Molecular Biophysics and Polymer Physics, Saint-Petersburg State University, 199034 St. Petersburg, Russia
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3
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Mijajlović A, Ognjanović M, Manojlović D, Vlahović F, Đurđić S, Stanković V, Stanković D. Eu 2O 3@Cr 2O 3 Nanoparticles-Modified Carbon Paste Electrode for Efficient Electrochemical Sensing of Neurotransmitters Precursor L-DOPA. BIOSENSORS 2023; 13:201. [PMID: 36831967 PMCID: PMC9953689 DOI: 10.3390/bios13020201] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
There are ten million people in the world who have Parkinson's disease. The most potent medicine for Parkinson's disease is levodopa (L-DOPA). However, long-term consumption of L-DOPA leads to the appearance of side effects, as a result of which the control and monitoring of its concentrations are of great importance. In this work, we have designed a new electrochemical sensor for detecting L-DOPA using a carbon paste electrode (CPE) modified with Eu2O3@Cr2O3 composite nanoparticles. Rare earth elements, including Eu, are increasingly used to design new electrode nanocomposites with enhanced electrocatalytic properties. Europium has been considered a significant lanthanide element with greater redox reaction behavior. We conducted a hydrothermal synthesis of Eu2O3@Cr2O3 and, for the first time, the acquired nanoparticles were used to modify CPE. The proposed Eu2O3@Cr2O3/CPE electrode was investigated in terms of its electrocatalytic properties and then used to develop an analytical method for detecting and quantifying L-DOPA. The proposed sensor offers a wide linear range (1-100 µM), high sensitivity (1.38 µA µM-1 cm-2) and a low detection limit (0.72 µM). The practical application of the proposed sensor was investigated by analyzing commercially available pharmaceutical tablets of L-DOPA. The corresponding results indicate the excellent potential of the Eu2O3@Cr2O3/CPE sensor for application in real-time L-DOPA detection.
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Affiliation(s)
- Aleksandar Mijajlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Miloš Ognjanović
- “VINČA” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
- Center for Nanotechnologies, South Ural State University, Lenin Prospekt 76, 454080 Chelyabinsk, Russia
| | - Filip Vlahović
- Institute of Chemistry, Technology and Metallurgy—National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Slađana Đurđić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Vesna Stanković
- Institute of Chemistry, Technology and Metallurgy—National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | - Dalibor Stanković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
- “VINČA” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia
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4
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Closing the loop for patients with Parkinson disease: where are we? Nat Rev Neurol 2022; 18:497-507. [PMID: 35681103 DOI: 10.1038/s41582-022-00674-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2022] [Indexed: 02/07/2023]
Abstract
Although levodopa remains the most efficacious symptomatic therapy for Parkinson disease (PD), management of levodopa treatment during the advanced stages of the disease is extremely challenging. This difficulty is a result of levodopa's short half-life, a progressive narrowing of the therapeutic window, and major inter-patient and intra-patient variations in the dose-response relationship. Therefore, a suitable alternative to repeated oral administration of levodopa is being sought. Recent research efforts have focused on the development of novel levodopa delivery strategies and wearable physical sensors that track symptoms and disease progression. However, the need for methods to monitor the levels of levodopa present in the body in real time has been overlooked. Advances in chemical sensor technology mean that the development of wearable and mobile biosensors for continuous or frequent levodopa measurements is now possible. Such levodopa monitoring could help to deliver personalized and timely medication dosing to alleviate treatment-related fluctuations in the symptoms of PD. Therefore, with the aim of optimizing therapeutic management of PD and improving the quality of life of patients, we share our vision of a future closed-loop autonomous wearable 'sense-and-act' system. This system consists of a network of physical and chemical sensors coupled with a levodopa delivery device and is guided by effective big data fusion algorithms and machine learning methods.
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Wu S, Jiang P, Ding N, Hu Q, Yan X, Liu J, Wang Y, Zhang H, Yuan P, Yang Q. Novel multi-stimuli-responsive supramolecular gel based on quinoline for the fluorescence ultrasensitive detection of Fe 3+and Cu 2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120078. [PMID: 34147737 DOI: 10.1016/j.saa.2021.120078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/27/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
A novel gelator molecular based on quinolone (MN) has been successfully designed and synthesized. The gelator MN could self-assemble to form a supramolecular gel (OMN), which showed obvious aggregation-induced emission (AIE) in iso-Propyl alcohol (i-PrOH). Furthermore, the supramolecular organogel OMN realized ultrasensitive detection of Fe3+ and Cu2+ in aqueous medium and fluorescent quenching at 427 nm. The sensing mechanism between supramolecular gel and metal ions was fully investigated via FE-SEM, FT-IR, XRD and XPS. Meanwhile, a thin film based on responsive supramolecular gel OMN was prepared, which could be used as multi-stimuli-responsive fluorescent display materials for the detection of Fe3+ and Cu2+.
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Affiliation(s)
- Shang Wu
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China.
| | - Pengwei Jiang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Ning Ding
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Qiang Hu
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Xiangtao Yan
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Jutao Liu
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Yanbin Wang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Hong Zhang
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China.
| | - Peilin Yuan
- Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission, Key Laboratory for Utility of Environmental Friendly Composite Materials and Biomass in University of Gansu Province, College of Chemical Engineering, Northwest Minzu University, Lanzhou 730030, People's Republic of China
| | - Quanlu Yang
- College of Chemical Engineering, Lanzhou University of Arts and Science, Lanzhou 730000, People's Republic of China.
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Rapid synthesis of microwave-assisted zinc oxide nanorods on a paper-based analytical device for fluorometric detection of l-dopa. Colloids Surf B Biointerfaces 2021; 207:111995. [PMID: 34303994 DOI: 10.1016/j.colsurfb.2021.111995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/14/2021] [Accepted: 07/18/2021] [Indexed: 12/17/2022]
Abstract
l-dopa is a catecholamine neurotransmitter used to treat Parkinson's disease. This paper presents a low-cost paper-based biosensor aimed at enhancing the convenience of monitoring l-dopa concentrations. ZnO nanorods (ZnO-NRs) were synthesized on papers in less than 90 min using a microwave-assisted hydrothermal method. The ZnO-NRs amplify green fluorescence signals to enhance the detection sensitivity of l-dopa, best measured at excitation/emission wavelengths of 475/537 nm. We systematically characterized the effect of reaction conditions on the corresponding fluorescence enhancements. The proposed ZnO NRs-paper biosensor presented a ∼3-fold increase in green fluorescence compared to unmodified papers. The linear range of detection for l-dopa was 25-2000 nM, with a limit of detection of 24 nM, which meets the clinical requirements for the monitoring of l-dopa in Parkinson's patients.
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7
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Wu S, Jiang H, Zhang Y, Wu L, Jiang P, Ding N, Zhang H, Zhao L, Yin F, Yang Q. A novel “on-off-on” acylhydrazone-based fluorescent chemosensor for ultrasensitive detection of Pd2+. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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8
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Bazany-Rodríguez IJ, Salomón-Flores MK, Viviano-Posadas AO, García-Eleno MA, Barroso-Flores J, Martínez-Otero D, Dorazco-González A. Chemosensing of neurotransmitters with selectivity and naked eye detection of l-DOPA based on fluorescent Zn(ii)-terpyridine bearing boronic acid complexes. Dalton Trans 2021; 50:4255-4269. [DOI: 10.1039/d0dt04228e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new range of fluorescent Zn(ii)-terpyridine complexes are described and studied in-depth as chemosensors for catecholamine-based neurotransmitters in pure water.
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Affiliation(s)
- Iván J. Bazany-Rodríguez
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
| | - María K. Salomón-Flores
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
| | | | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable CCIQS UAEM-UNAM
- Facultad de Química
- Universidad Autónoma del Estado de México
- Carretera Toluca-Atlacomulco Km 14.5
- Toluca
| | - Joaquín Barroso-Flores
- Centro Conjunto de Investigación en Química Sustentable
- UAEM-UNAM
- Carretera Toluca-Atlacomulco Km 14.5
- Universidad Nacional Autónoma de México
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable
- UAEM-UNAM
- Carretera Toluca-Atlacomulco Km 14.5
- Universidad Nacional Autónoma de México
| | - Alejandro Dorazco-González
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior, Ciudad Universitaria
- México
- Mexico
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Lian H, Huang S, Wei X, Guo J, Sun X, Liu B. Gold nanodendrite-based differential potential ratiometric sensing strategy for enantioselective recognition of DOPA. Talanta 2020; 210:120654. [DOI: 10.1016/j.talanta.2019.120654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 12/13/2019] [Accepted: 12/19/2019] [Indexed: 02/04/2023]
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10
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Wang D, Geng F, Wang Y, Ma Y, Li G, Qu P, Shao C, Xu M. Design of a Fluorescence Turn-on and Label-free Aptasensor Using the Intrinsic Quenching Power of G-Quadruplex to AMT. ANAL SCI 2020; 36:965-970. [PMID: 32062632 DOI: 10.2116/analsci.19p455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A novel fluorescent aptasensor based on the G-quadruplex induced fluorescent quenching of psoralen and the competitive interactions between 4'-aminomethyl-4,5',8-trimethylpsoralen (AMT), adenosine triphosphate (ATP) and G-rich DNA functionalized split ATP aptamer was proposed. The binding of ATP to the G-rich DNA functionalized split aptamer induced a significant enhancement in fluorescence emission intensity while undergoing excitation at 340 nm. Under the optimal conditions, the developed aptasensor showed high selectivity and good accuracy for detecting ATP. The practicality of the proposed aptasensor has been confirmed by successfully analyzing ATP in spiked human blood serum samples with satisfactory results. As far as we know, this is the first time that the intrinsic quenching ability of G-quadruplex was applied to simply construct a fluorescence turn-on and label-free aptasensor. On account of the superiority of the simplicity of the design strategy, more work is expected in the future to develop a variety of novel sensors for other important analytes using the quenching capability of G-quadruplex through reasonable designs.
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Affiliation(s)
- Dandan Wang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University
| | - Fenghua Geng
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, School of Chemistry and Chemical Engineering, Shangqiu Normal University
| | - Yongxiang Wang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, School of Chemistry and Chemical Engineering, Shangqiu Normal University.,College of Chemistry and Material Science, Huaibei Normal University
| | - Yu Ma
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, School of Chemistry and Chemical Engineering, Shangqiu Normal University
| | - Guixin Li
- College of Chemistry and Chemical Engineering, Xinjiang Normal University
| | - Peng Qu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, School of Chemistry and Chemical Engineering, Shangqiu Normal University
| | - Congying Shao
- College of Chemistry and Material Science, Huaibei Normal University
| | - Maotian Xu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Henan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major Diseases, School of Chemistry and Chemical Engineering, Shangqiu Normal University
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Novel electrochemical nanoswitch biosensor based on self-assembled pH-sensitive continuous circular DNA. Biosens Bioelectron 2019; 131:274-279. [DOI: 10.1016/j.bios.2019.02.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 02/07/2023]
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12
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Nam E, Derrick JS, Lee S, Kang J, Han J, Lee SJC, Chung SW, Lim MH. Regulatory Activities of Dopamine and Its Derivatives toward Metal-Free and Metal-Induced Amyloid-β Aggregation, Oxidative Stress, and Inflammation in Alzheimer's Disease. ACS Chem Neurosci 2018; 9:2655-2666. [PMID: 29782798 DOI: 10.1021/acschemneuro.8b00122] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
A catecholamine neurotransmitter, dopamine (DA), is suggested to be linked to the pathology of dementia; however, the involvement of DA and its structural analogues in the pathogenesis of Alzheimer's disease (AD), the most common form of dementia, composed of multiple pathogenic factors has not been clear. Herein, we report that DA and its rationally designed structural derivatives (1-6) based on DA's oxidative transformation are able to modulate multiple pathological elements found in AD [i.e., metal ions, metal-free amyloid-β (Aβ), metal-bound Aβ (metal-Aβ), and reactive oxygen species (ROS)], with demonstration of detailed molecular-level mechanisms. Our multidisciplinary studies validate that the protective effects of DA and its derivatives on Aβ aggregation and Aβ-mediated toxicity are induced by their oxidative transformation with concomitant ROS generation under aerobic conditions. In particular, DA and the derivatives (i.e., 3 and 4) show their noticeable anti-amyloidogenic ability toward metal-free Aβ and/or metal-Aβ, verified to occur via their oxidative transformation that facilitates Aβ oxidation. Moreover, in primary pan-microglial marker (CD11b)-positive cells, the major producers of inflammatory mediators in the brain, DA and its derivatives significantly diminish inflammation and oxidative stress triggered by lipopolysaccharides and Aβ through the reduced induction of inflammatory mediators as well as upregulated expression of heme oxygenase-1, the enzyme responsible for production of antioxidants. Collectively, we illuminate how DA and its derivatives could prevent multiple pathological features found in AD. The overall studies could advance our understanding regarding distinct roles of neurotransmitters in AD and identify key interactions for alleviation of AD pathology.
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Affiliation(s)
- Eunju Nam
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jeffrey S. Derrick
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Seunghee Lee
- School of Biological Sciences, College of Natural Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Juhye Kang
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jiyeon Han
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Shin Jung C. Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Su Wol Chung
- School of Biological Sciences, College of Natural Sciences, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Mi Hee Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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13
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Bo B, Zhang T, Jiang Y, Cui H, Miao P. Triple Signal Amplification Strategy for Ultrasensitive Determination of miRNA Based on Duplex Specific Nuclease and Bridge DNA–Gold Nanoparticles. Anal Chem 2018; 90:2395-2400. [PMID: 29308636 DOI: 10.1021/acs.analchem.7b05447] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Bing Bo
- Shanghai
Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433 P. R. China
| | - Tian Zhang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163 P. R. China
| | - Yiting Jiang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163 P. R. China
| | - Haiyan Cui
- Shanghai
Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433 P. R. China
| | - Peng Miao
- Shanghai
Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433 P. R. China
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163 P. R. China
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