1
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Xu L, Wang H, Xu Y, Cui W, Ni W, Chen M, Huang H, Stewart C, Li L, Li F, Han J. Machine Learning-Assisted Sensor Array Based on Poly(amidoamine) (PAMAM) Dendrimers for Diagnosing Alzheimer's Disease. ACS Sens 2022; 7:1315-1322. [PMID: 35584464 DOI: 10.1021/acssensors.2c00132] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disorder, and the early diagnosis of AD remains challenging. Here we have developed a fluorescent sensor array composed of three modified polyamidoamine dendrimers. Proteins of various properties were differentiated via this array with 100% accuracy, proving the rationality of the array's design. The mechanism of the fluorescence response was discussed. Furthermore, the robust three-element array enables parallel detection of multiple Aβ40/Aβ42 aggregates (0.5 μM) in diverse interferents, serum media, and cerebrospinal fluid (CSF) with high accuracy, through machine learning algorithms, demonstrating the tremendous potential of the sensor array in Alzheimer's disease diagnosis.
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Affiliation(s)
- Lian Xu
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Hao Wang
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Yu Xu
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Wenyu Cui
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Weiwei Ni
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Mingqi Chen
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Hui Huang
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Callum Stewart
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Linxian Li
- Ming Wai Lau Centre for Reparative Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Fei Li
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
| | - Jinsong Han
- State Key Laboratory of Natural Medicines and National R&D Center for Chinese Herbal Medicine Processing, Department of Food Quality and Safety, College of Engineering, China Pharmaceutical University, Nanjing 211109, China
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2
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Sinsinbar G, Palaniappan A, Yildiz UH, Liedberg B. A Perspective on Polythiophenes as Conformation Dependent Optical Reporters for Label-Free Bioanalytics. ACS Sens 2022; 7:686-703. [PMID: 35226461 DOI: 10.1021/acssensors.1c02476] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Poly(3-alkylthiophene) (PT)-based conjugated polyelectrolytes (CPEs) constitute an important class of responsive polymers with excellent optical properties. The electrostatic interactions between PTs and target analytes trigger complexation and concomitant conformational changes of the PT backbones that produce distinct optical responses. These conformation-induced optical responses of the PTs enable them to be utilized as reporters for detection of various analytes by employing simple UV-vis spectrophotometry or the naked eye. Numerous PTs with unique pendant groups have been synthesized to tailor their interactions with analytes such as nucleotides, ions, surfactants, proteins, and bacterial and viral pathogens. In this perspective, we discuss PT-target analyte complexation for bioanalytical applications and highlight recent advancements in point-of-care and field deployable assays. Subsequently, we highlight a few areas of critical importance for future applications of PTs as reporters, including (i) design and synthesis of specific PTs to advance the understanding of the mechanisms of interaction with target analytes, (ii) using arrays of PTs and linear discriminant analysis for selective and specific detection of target analytes, (iii) translation of conventional homogeneous solution-based assays into heterogeneous membrane-based assay formats, and finally (iv) the potential of using PT as an alternative to conjugated polymer nanoparticles and dots in bioimaging.
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Affiliation(s)
- Gaurav Sinsinbar
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553
| | - Alagappan Palaniappan
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553
| | - Umit Hakan Yildiz
- Department of Chemistry, Izmir Institute of Technology, İzmir 35430, Turkey
- Department of Photonic Science and Engineering, Izmir Institute of Technology, İzmir 35430, Turkey
- Department of Polymer Science and Engineering, Izmir Institute of Technology, İzmir 35430, Turkey
| | - Bo Liedberg
- Centre for Biomimetic Sensor Science, School of Materials Science Engineering, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553
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3
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Ahumada JC, Soto JP, Alemán C, Torras J. Synthesis and characterization of a new benzobisoxazole/thiophene derivative polymer and the effect of the substituent on the push/pull properties. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Juan Carlos Ahumada
- Departamento de Química Universidad Técnica Federico Santa María Valparaíso Chile
- Department of Chemical Engineering and Barcelona Research Center for Multiscale Science and Engineering Universitat Politècnica de Catalunya, Escola d'Enginyeria de Barcelona Est (EEBE) Barcelona Spain
| | - Juan Pablo Soto
- Laboratorio de Polímeros, Instituto de Química Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso Valparaíso Chile
| | - Carlos Alemán
- Department of Chemical Engineering and Barcelona Research Center for Multiscale Science and Engineering Universitat Politècnica de Catalunya, Escola d'Enginyeria de Barcelona Est (EEBE) Barcelona Spain
| | - Juan Torras
- Department of Chemical Engineering and Barcelona Research Center for Multiscale Science and Engineering Universitat Politècnica de Catalunya, Escola d'Enginyeria de Barcelona Est (EEBE) Barcelona Spain
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4
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Sasaki Y, Lyu X, Tang W, Wu H, Minami T. Polythiophene-Based Chemical Sensors: Toward On-Site Supramolecular Analytical Devices. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210265] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yui Sasaki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Xiaojun Lyu
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Wei Tang
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Hao Wu
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Tsuyoshi Minami
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
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5
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Elgiddawy N, Ren S, Ghattas W, Rouby WMAE, El-Gendy AO, Farghali AA, Yassar A, Korri-Youssoufi H. Antimicrobial Activity of Cationic Poly(3-hexylthiophene) Nanoparticles Coupled with Dual Fluorescent and Electrochemical Sensing: Theragnostic Prospect. SENSORS (BASEL, SWITZERLAND) 2021; 21:1715. [PMID: 33801383 PMCID: PMC7958628 DOI: 10.3390/s21051715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/22/2021] [Accepted: 02/22/2021] [Indexed: 12/17/2022]
Abstract
Designing therapeutic and sensor materials to diagnose and eliminate bacterial infections remains a significant challenge for active theragnostic nanoprobes. In the present work, fluorescent/electroactive poly(3-hexylthiophene) P3HT nanoparticles (NPs) stabilized with quaternary ammonium salts using cetyltrimethylammonium bromide (CTAB), (CTAB-P3HT NPs) were prepared using a simple mini-emulsion method. The morphology, spectroscopic properties and electronic properties of CTAB-P3HT NPs were characterized by DLS, zeta potential, SEM, TEM, UV-vis spectrophotometry, fluorescence spectroscopy and electrochemical impedance spectroscopy (EIS). In an aqueous solution, CTAB-P3HT NPs were revealed to be uniformly sized, highly fluorescent and present a highly positively charged NP surface with good electroactivity. Dual detection was demonstrated as the binding of the bacteria to NPs could be observed by fluorescence quenching as well as by the changes in EIS. Binding of E. coli to CTAB-P3HT NPs was demonstrated and LODs of 5 CFU/mL and 250 CFU/mL were obtained by relying on the fluorescence spectroscopy and EIS, respectively. The antimicrobial activity of CTAB-P3HT NPs on bacteria and fungi was also studied under dark and nutritive conditions. An MIC and an MBC of 2.5 µg/mL were obtained with E. coli and with S. aureus, and of 0.312 µg/mL with C. albicans. Additionally a good biocompatibility toward normal human cells (WI38) was observed, which opens the way to their possible use as a therapeutic agent.
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Affiliation(s)
- Nada Elgiddawy
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), ECBB, 91400 Orsay, France; (N.E.); (W.G.)
- Department of Biotechnology and Life Sciences, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62 511, Egypt
| | - Shiwei Ren
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.R.); (A.Y.)
| | - Wadih Ghattas
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), ECBB, 91400 Orsay, France; (N.E.); (W.G.)
| | - Waleed M. A. El Rouby
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62 511, Egypt; (W.M.A.E.R.); (A.A.F.)
| | - Ahmed O. El-Gendy
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
- Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Ahmed A. Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62 511, Egypt; (W.M.A.E.R.); (A.A.F.)
| | - Abderrahim Yassar
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France; (S.R.); (A.Y.)
| | - Hafsa Korri-Youssoufi
- Université Paris-Saclay, CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), ECBB, 91400 Orsay, France; (N.E.); (W.G.)
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6
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Sasaki Y, Ito S, Zhang Z, Lyu X, Takizawa SY, Kubota R, Minami T. Supramolecular Sensor for Astringent Procyanidin C1: Fluorescent Artificial Tongue for Wine Components. Chemistry 2020; 26:16236-16240. [PMID: 32633434 DOI: 10.1002/chem.202002262] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Indexed: 01/15/2023]
Abstract
An artificial tongue that detects astringent components for a comprehensive evaluation of taste has not been established to date. Herein, we first propose fluorescent polythiophene (PT) derivatives (S1-S3) modified with 3-pyridinium boronic acid as supramolecular chemosensors for wine components including astringent procyanidin C1. After numerous attempts for the synthetic conditions, more than 95 mol % of the PT unit was modified with the pyridinium boronic acid moiety. To evaluate the PT derivatives as chemosensors of the artificial tongue, qualitative and quantitative analyses were performed with four types of wine components (i.e., sweet, sour, bitter, and astringent tastes) in combination with pattern recognition models. Notably, procyanidin C1 in the actual wine sample was successfully detected in a quantitative manner. In other words, we have established an authentic artificial tongue using PT based supramolecular chemosensors.
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Affiliation(s)
- Yui Sasaki
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Satoshi Ito
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.,Nitto Denko Corporation, 1-1-2, Shimohozumi, Ibaraki, Osaka, 567-8680, Japan
| | - Zhoujie Zhang
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Xiaojun Lyu
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Shin-Ya Takizawa
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Riku Kubota
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Tsuyoshi Minami
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
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7
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Aydın M. A sensitive and selective approach for detection of IL 1α cancer biomarker using disposable ITO electrode modified with epoxy-substituted polythiophene polymer. Biosens Bioelectron 2019; 144:111675. [DOI: 10.1016/j.bios.2019.111675] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 01/05/2023]
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8
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WaterSpy: A High Sensitivity, Portable Photonic Device for Pervasive Water Quality Analysis. SENSORS 2018; 19:s19010033. [PMID: 30583457 PMCID: PMC6339088 DOI: 10.3390/s19010033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 11/29/2018] [Accepted: 12/07/2018] [Indexed: 12/03/2022]
Abstract
In this paper, we present WaterSpy, a project developing an innovative, compact, cost-effective photonic device for pervasive water quality sensing, operating in the mid-IR spectral range. The approach combines the use of advanced Quantum Cascade Lasers (QCLs) employing the Vernier effect, used as light source, with novel, fibre-coupled, fast and sensitive Higher Operation Temperature (HOT) photodetectors, used as sensors. These will be complemented by optimised laser driving and detector electronics, laser modulation and signal conditioning technologies. The paper presents the WaterSpy concept, the requirements elicited, the preliminary architecture design of the device, the use cases in which it will be validated, while highlighting the innovative technologies that contribute to the advancement of the current state of the art.
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9
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AlSalhi MS, Almotiri AR, Prasad S, Aljaafreh MJ, Othman AHS, Masilamai V. A Temperature-Tunable Thiophene Polymer Laser. Polymers (Basel) 2018; 10:polym10050470. [PMID: 30966504 PMCID: PMC6415369 DOI: 10.3390/polym10050470] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/23/2018] [Accepted: 04/23/2018] [Indexed: 11/16/2022] Open
Abstract
This paper reports a temperature-tunable conjugated polymer poly[3-(2-ethyl-isocyanato-octadecanyl)-thiophene] (TCP) laser working in superradiant (SR)—or amplified spontaneous emission (ASE)—mode. The absorption spectra indicated the aggregate (mostly dimer) formation upon increasing concentration and/or decreasing temperature. Amplified spontaneous emission (ASE) was observed at suitable concentration, temperature, and pump energy values. The efficiency of the ASE from the TCP polymer was improved by energy transfer from an oligomer 9,9,9′,9′,9″,9″-hexakis(octyl)-2,7′,2′,7″-trifluorene (HOTF). Moreover, the ASE wavelength can be tuned between 550 and 610 nm by changing the temperature of the solution from 60 to 10 °C. To the best of our knowledge, this is the first report of a high-power, temperature-tunable, and conjugated polymer laser.
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Affiliation(s)
- Mohamad S AlSalhi
- Research Chair on laser diagnosis of cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Ahlam Rashed Almotiri
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Saradh Prasad
- Research Chair on laser diagnosis of cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Mamduh J Aljaafreh
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Ahmad H S Othman
- Research Chair on laser diagnosis of cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Vadivel Masilamai
- Research Chair on laser diagnosis of cancers, Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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10
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Das S, Routh P, Ghosh R, Chatterjee DP, Nandi AK. Water-soluble ionic polythiophenes for biological and analytical applications. POLYM INT 2016. [DOI: 10.1002/pi.5295] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sandip Das
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Parimal Routh
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Radhakanta Ghosh
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Dhruba P Chatterjee
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Arun K Nandi
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
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11
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Lee JS, Kim W, Cho S, Jun J, Cho KH, Jang J. Multidimensional hybrid conductive nanoplate-based aptasensor for platelet-derived growth factor detection. J Mater Chem B 2016; 4:4447-4454. [PMID: 32263427 DOI: 10.1039/c6tb00726k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the development of disease diagnoses, rapid responses to and accurate selectivity for target analytes are critical aspects. As one diagnostic approach, biosensors with high sensitivity and selectivity are investigated to detect disorder factors (e.g., endocrine disruptors and cancer oncoproteins). In this report, we demonstrate an aptamer-functionalized multidimensional hybrid conducting-polymer (3-carboxylated polypyrrole) plate (A_MHCPP) based field-effect transistor (FET) sensor to detect a platelet-derived growth factor (PDGF-BB). The multidimensional hybrid conducting-polymer plates (MHCPPs) are formed on the graphene surface by using electrodeposition and vapor deposition polymerization (VDP) steps. The amine-functionalized PDGF-B binding aptamers are then immobilized on the carboxylated polypyrrole surface by means of covalent bond formation (-CONH). The prepared FET sensors present high sensing ability toward PDGF-BB - as low as 1.78 fM among interfering biomolecules at room temperature.
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Affiliation(s)
- Jun Seop Lee
- School of Chemical and Biological Engineering, College of Engineering, Seoul National University, 599 Gwanangno, Gwanakgu, Seoul 151-742, Korea.
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12
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Rajwar D, Ammanath G, Cheema JA, Palaniappan A, Yildiz UH, Liedberg B. Tailoring Conformation-Induced Chromism of Polythiophene Copolymers for Nucleic Acid Assay at Resource Limited Settings. ACS APPLIED MATERIALS & INTERFACES 2016; 8:8349-8357. [PMID: 26956217 DOI: 10.1021/acsami.5b12171] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Here we report on the design and synthesis of cationic water-soluble thiophene copolymers as reporters for colorimetric detection of microRNA (miRNA) in human plasma. Poly(3-alkoxythiophene) (PT) polyelectrolytes with controlled ratios of pendant groups such as triethylamine/1-methyl imidazole were synthesized for optimizing interaction with target miRNA sequence (Tseq). Incorporation of specific peptide nucleic acid (PNA) sequences with the cationic polythiophenes yielded distinguishable responses upon formation of fluorescent PT-PNA-Tseq triplex and weakly fluorescent PT-Tseq duplex, thereby enabling selective detection of target miRNA. Unlike homopolymers of PT (hPT), experimental results indicate the possibility of utilizing copolymers of PT (cPT) with appropriate ratios of pendant groups for miRNA assay in complex matrices such as plasma. As an illustration, colorimetric responses were obtained for lung cancer associated miRNA sequence (mir21) in human plasma, with a detection limit of 10 nM, illustrating the feasibility of proposed methodology for clinical applications without involving sophisticated instrumentation. The described methodology therefore possesses high potential for low-cost nucleic acid assays in resource-limited settings.
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Affiliation(s)
- Deepa Rajwar
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798
| | - Gopal Ammanath
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798
| | - Jamal Ahmed Cheema
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798
| | - Alagappan Palaniappan
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798
| | - Umit Hakan Yildiz
- Department of Chemistry, Izmir Institute of Technology , Urla, 35430 Izmir, Turkey
| | - Bo Liedberg
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798
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13
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Yan W, Yuan H, Li R, Fan Y, Zhan Y, Qi J, An H, Niu R, Li G, Xing C. Conjugated Polythiophene/Porphyrin Complex for Rapid and Simple Detection of Bacteria in Drinking Water. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500188] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Wenmin Yan
- Institute of Polymer Science and Engineering; School of Chemical Engineering; Hebei University of Technology; Tianjin 300130 P.R. China
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Hongbo Yuan
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Ruihua Li
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Yibing Fan
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Yong Zhan
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Junjie Qi
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Hailong An
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Ruimin Niu
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
| | - Gang Li
- Institute of Polymer Science and Engineering; School of Chemical Engineering; Hebei University of Technology; Tianjin 300130 P.R. China
| | - Chengfen Xing
- Institute of Polymer Science and Engineering; School of Chemical Engineering; Hebei University of Technology; Tianjin 300130 P.R. China
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P.R. China
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14
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Chen X, Wang Q, Wang L, Guo H, Yang Y, Li F, Gao F. Construction of a Novel Colitoxin DNA Biosensor Based on Cross-Linker-Free Fixation of Probe Fragments on the Interface of Rugby-Ball-Shaped CoS2 Submicroparticles and Poly(2-thiophenesulfonyl chloride) Composite Film. Ind Eng Chem Res 2015. [DOI: 10.1021/ie503831k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xiaoqian Chen
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Qingxiang Wang
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Liheng Wang
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Hongxu Guo
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Yizhen Yang
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Feiming Li
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
| | - Feng Gao
- Department of
Chemistry and Environment, Fujian
Provincal Key Laboratory of Modern Analytical Science and Separation
Technology, Minnan Normal University, Zhangzhou 363000, PR China
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15
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Wu T, Wang L, Zhang Y, Du S, Guo W, Pei M. Electrochemical synthesis of poly(3-thiophene acetic acid) nanowires with water-soluble macromolecule templates. RSC Adv 2015. [DOI: 10.1039/c4ra17078d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The interactions between template molecules and monomers play a key role in the formation of PTAA nanowires.
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Affiliation(s)
- Ting Wu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Luyan Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Yue Zhang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Sen Du
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Wenjuan Guo
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Meishan Pei
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
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16
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Jun J, Lee JS, Shin DH, Jang J. Aptamer-functionalized hybrid carbon nanofiber FET-type electrode for a highly sensitive and selective platelet-derived growth factor biosensor. ACS APPLIED MATERIALS & INTERFACES 2014; 6:13859-13865. [PMID: 25020238 DOI: 10.1021/am5032693] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Precise selectivity and rapid responses to target biomolecules are important in the development of biosensors. In particular, highly sensitive and selective biosensors have been used in clinical treatment to detect factors such as cancer oncoproteins and endocrine disruptors. Herein, highly sensitive liquid electrolyte field-effect transistor (FET) system biosensors were fabricated to detect platelet-derived growth factor (PDGF) using a PDGF-B binding aptamer conjugated with carboxylic polypyrrole-coated metal oxide-decorated carbon nanofibers (CPMCNFs) as the signal transducer. First, CPMCNFs were fabricated using vapor deposition polymerization (VDP) of the carboxylic pryrrole monomer (CPy) on metal oxide-decorated carbon nanofiber (MCNF) surfaces with no treatment for carbon surface functionalization. Furthermore, a 3 nm thick uniformly coated carboxylic polypyrrole (CPPy) layer was formed without aggregation. The CPMCNFs were integrated with the PDGF-B binding aptamer and immobilized on the interdigitated array substrate by covalent anchoring to produce a FET-type biosensor transducer. The PDGF-B binding aptamer conjugated CPMCNF (CPB-Apt) FET sensor was highly sensitive (5 fM) and extremely selective for isoforms of PDGFs. Additionally, the CPB-Apt FET sensor could be reused over a few weeks.
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Affiliation(s)
- Jaemoon Jun
- School of Chemical and Biological Engineering, College of Engineering, Seoul National University (SNU) , 599 Gwanangno, Gwanak-gu, Seoul, 151-742 Korea
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17
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Polymer dots for quantifying the total hydrophobic pathogenic lysates in a single drop. Colloids Surf B Biointerfaces 2014; 115:51-60. [DOI: 10.1016/j.colsurfb.2013.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 11/05/2013] [Accepted: 11/09/2013] [Indexed: 12/29/2022]
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18
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Yang S, Meng D, Sun J, Hou W, Ding Y, Jiang S, Huang Y, Huang Y, Geng J. Enhanced electrochemical response for mercury ion detection based on poly(3-hexylthiophene) hybridized with multi-walled carbon nanotubes. RSC Adv 2014. [DOI: 10.1039/c4ra02228a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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