1
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Gong Z, Zhao H, Bai J. pH-responsive drug-loaded peptides enhance drug accumulation and promote apoptosis in tumor cells. Colloids Surf B Biointerfaces 2024; 239:113954. [PMID: 38744076 DOI: 10.1016/j.colsurfb.2024.113954] [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: 03/25/2024] [Revised: 04/26/2024] [Accepted: 05/04/2024] [Indexed: 05/16/2024]
Abstract
The efficacy of chemotherapeutic drugs in tumor treatment is limited by their toxicity and side effects due to their inability to selectively accumulate in tumor tissue. In addition, chemotherapeutic agents are easily pumped out of tumor cells, resulting in their inadequate accumulation. To overcome these challenges, a drug delivery system utilizing the amphiphilic peptide Pep1 was designed. Pep1 can self-assemble into spherical nanoparticles (PL/Pep1) and encapsulate paclitaxel (PTX) and lapatinib (LAP). PL/Pep1 transformed into nanofibers in an acidic environment, resulting in longer drug retention and higher drug concentrations within tumor cells. Ultimately, PL/Pep1 inhibited tumor angiogenesis and enhanced tumor cell apoptosis. The use of shape-changing peptides as drug carriers to enhance cancer cell apoptosis is promising.
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Affiliation(s)
- Zhongying Gong
- College of Economics and Management, Qingdao University of Science and Technology, Qingdao, China
| | - Hongxia Zhao
- College of Economics and Management, Qingdao University of Science and Technology, Qingdao, China.
| | - Jingkun Bai
- School of Bioscience and Technology, Shandong Second Medical University, Weifang, China.
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2
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Tufail S, Sherwani MA, Shamim Z, Abdullah, Goh KW, Alomary MN, Ansari MA, Almosa AA, Ming LC, Abdullah ADI, Khan FB, Menhali AA, Mirza S, Ayoub MA. 2D nanostructures: Potential in diagnosis and treatment of Alzheimer's disease. Biomed Pharmacother 2024; 170:116070. [PMID: 38163396 DOI: 10.1016/j.biopha.2023.116070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 12/06/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024] Open
Abstract
Two-dimensional (2D) nanomaterials have garnered enormous attention seemingly due to their unusual architecture and properties. Graphene and graphene oxide based 2D nanomaterials remained the most sought after for several years but the quest to design superior 2D nanomaterials which can find wider application gave rise to development of non-graphene 2D materials as well. Consequently, in addition to graphene based 2D nanomaterials, 2D nanostructures designed using macromolecules (such as DNAs, proteins, peptides and peptoids), transition metal dichalcogenides, transition-metal carbides and/or nitrides (MXene), black phosphorous, chitosan, hexagonal boron nitrides, and graphitic carbon nitride, and covalent organic frameworks have been developed. Interestingly, these 2D nanomaterials have found applications in diagnosis and treatment of various diseases including Alzheimer's disease (AD). Although AD is one of the most debilitating neurodegenerative conditions across the globe; unfortunately, there remains a paucity of effective diagnostic and/or therapeutic intervention for it till date. In this scenario, nanomaterial-based biosensors, or therapeutics especially 2D nanostructures are emerging to be promising in this regard. This review summarizes the diagnostic and therapeutic platforms developed for AD using 2D nanostructures. Collectively, it is worth mentioning that these 2D nanomaterials would seemingly provide an alternative and intriguing platform for biomedical interventions.
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Affiliation(s)
- Saba Tufail
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, USA.
| | | | - Zahid Shamim
- Department of Electrical Engineering, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
| | - Abdullah
- Department of Pharmacy, University of Malakand, Khyber Pakhtunkhwa, Pakistan
| | - Khang Wen Goh
- Faculty Data Science and Information Technology, INTI International University, Nilai, Malaysia
| | - Mohammad N Alomary
- Advanced Diagnostic and Therapeutic Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Mohammad Azam Ansari
- Department of Epidemic Disease Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Abdulaziz Abdullah Almosa
- Wellness and Preventive Medicine Institute, King AbdulAziz City of Science and Technology, Riyadh, Saudi Arabia.
| | - Long Chiau Ming
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Sunway City, Malaysia.
| | - Amar Daud Iskandar Abdullah
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Sunway City, Malaysia.
| | - Farheen Badrealam Khan
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates; Department of Biological Sciences, College of Medicine and Health Sciences, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.
| | - Asma Al Menhali
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates.
| | - Sameer Mirza
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates.
| | - Mohammed Akli Ayoub
- Department of Biological Sciences, College of Medicine and Health Sciences, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.
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3
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Rouhi N, Akhgari A, Orouji N, Nezami A, Rahimzadegan M, Kamali H. Recent progress in the graphene-based biosensing approaches for the detection of Alzheimer's biomarkers. J Pharm Biomed Anal 2023; 222:115084. [DOI: 10.1016/j.jpba.2022.115084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/15/2022] [Accepted: 09/26/2022] [Indexed: 12/01/2022]
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4
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Yang L, Zhang X, Li M, Qu L, Liu Z. Acetylcholinesterase-Cu 3(PO 4) 2 hybrid nanoflowers for electrochemical detection of dichlorvos using square-wave voltammetry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3911-3920. [PMID: 36169013 DOI: 10.1039/d2ay01014c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Immobilization of enzymes is one of the key steps in the development of high-performance enzymatic electrochemical biosensors, and various nanostructured materials have been designed and developed to achieve this goal. Herein, hybrid nanoflowers (HNFs) were synthesized using acetylcholinesterase (AChE) as an organic component and copper phosphate (Cu3(PO4)2) as an inorganic component. These AChE-Cu3(PO4)2 HNFs exhibit a three-dimensional hierarchical flower-like structure, which not only has a large specific surface area but also promotes the affinity between AChE and its substrate with better catalytic activity. Not only that, the surface modification of the glassy carbon electrode (GCE) by the joint use of gold nanoparticles (AuNPs) and graphene oxide (GO) extended the electroactive area. Using square-wave voltammetry (SWV), the as-prepared biosensor (i.e., AChE-Cu3(PO4)2 HNF/AuNP/GO/GCE) demonstrated superior sensing performance in the detection of dichlorvos. The detection limit is as low as 0.07 pM, and the linear detection range can range from 0.5 pM to 10 μM. In addition, the biosensor was feasible in real agricultural samples with satisfactory recoveries (98.65% to 103.43%). The reported biosensor provides an alternative tool for the direct measurements of AChE activity and its inhibition. Besides organophosphorus pesticides represented by dichlorvos, this biosensor has the potential to detect other AChE inhibitors, such as carbamate pesticides, drugs for Alzheimer's disease, etc., thus having broader applications in food safety and drug screening.
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Affiliation(s)
- Limin Yang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, China.
| | - Xiaolong Zhang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, China.
| | - Mingming Li
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, China.
| | - Linjiao Qu
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology, China University of Petroleum (East China), Qingdao, China.
| | - Zhen Liu
- Institute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen, China.
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5
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Han Q, Pang J, Li Y, Sun B, Ibarlucea B, Liu X, Gemming T, Cheng Q, Zhang S, Liu H, Wang J, Zhou W, Cuniberti G, Rümmeli MH. Graphene Biodevices for Early Disease Diagnosis Based on Biomarker Detection. ACS Sens 2021; 6:3841-3881. [PMID: 34696585 DOI: 10.1021/acssensors.1c01172] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The early diagnosis of diseases plays a vital role in healthcare and the extension of human life. Graphene-based biosensors have boosted the early diagnosis of diseases by detecting and monitoring related biomarkers, providing a better understanding of various physiological and pathological processes. They have generated tremendous interest, made significant advances, and offered promising application prospects. In this paper, we discuss the background of graphene and biosensors, including the properties and functionalization of graphene and biosensors. Second, the significant technologies adopted by biosensors are discussed, such as field-effect transistors and electrochemical and optical methods. Subsequently, we highlight biosensors for detecting various biomarkers, including ions, small molecules, macromolecules, viruses, bacteria, and living human cells. Finally, the opportunities and challenges of graphene-based biosensors and related broad research interests are discussed.
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Affiliation(s)
- Qingfang Han
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, China
| | - Jinbo Pang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Yufen Li
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Baojun Sun
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
- School of Biological Science and Technology, University of Jinan, 336 West Road of Nan Xinzhuang, Jinan 250022, Shandong, China
| | - Bergoi Ibarlucea
- Dresden Center for Computational Materials Science, Technische Universität Dresden, Dresden 01062, Germany
- Dresden Center for Intelligent Materials (GCL DCIM), Technische Universität Dresden, Dresden 01062, Germany
| | - Xiaoyan Liu
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Thomas Gemming
- Leibniz Institute for Solid State and Materials Research Dresden, Dresden D-01171, Germany
| | - Qilin Cheng
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Shu Zhang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Hong Liu
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
- State Key Laboratory of Crystal Materials, Center of Bio & Micro/Nano Functional Materials, Shandong University, 27 Shandanan Road, Jinan 250100, China
| | - Jingang Wang
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Weijia Zhou
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, Shandong, China
| | - Gianaurelio Cuniberti
- Dresden Center for Computational Materials Science, Technische Universität Dresden, Dresden 01062, Germany
- Dresden Center for Intelligent Materials (GCL DCIM), Technische Universität Dresden, Dresden 01062, Germany
- Institute for Materials Science and Max Bergmann Center of Biomaterials, Technische Universität Dresden, Dresden 01069, Germany
- Center for Advancing Electronics Dresden, Technische Universität Dresden, Dresden 01069, Germany
| | - Mark H. Rümmeli
- Leibniz Institute for Solid State and Materials Research Dresden, Dresden D-01171, Germany
- College of Energy, Soochow, Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, China
- Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie Sklodowskiej 34, Zabrze 41-819, Poland
- Institute of Environmental Technology (CEET), VŠB-Technical University of Ostrava, 17. Listopadu 15, Ostrava 708 33, Czech Republic
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6
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Zheng Z, Zhang H, Zhai T, Xia F. Overcome Debye Length Limitations for Biomolecule Sensing Based on Field Effective Transistors
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000584] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zhi Zheng
- Engineering Research Center of Nano‐Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan Hubei 430074 China
| | - Hongyuan Zhang
- Engineering Research Center of Nano‐Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan Hubei 430074 China
| | - Tianyou Zhai
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology Wuhan Hubei 430074 China
| | - Fan Xia
- Engineering Research Center of Nano‐Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan Hubei 430074 China
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7
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Ou Q, Tawfik SM, Zhang X, Lee YI. Novel “turn on–off” paper sensor based on nonionic conjugated polythiophene-coated CdTe QDs for efficient visual detection of cholinesterase activity. Analyst 2020; 145:4305-4313. [DOI: 10.1039/d0an00924e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel conjugated polythiophene (CP) compound was successfully combined with CdTe quantum dots to improve their selectivity and sensitivity for the efficient visual detection of AChE activity via the color variation of CdTe/CP.
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Affiliation(s)
- Qi Ou
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
- College of Materials and Chemistry & Chemical Engineering
| | - Salah M. Tawfik
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
- Department of Petrochemicals
| | - Xinfeng Zhang
- College of Materials and Chemistry & Chemical Engineering
- Chengdu University of Technology
- Chengdu 610059
- China
| | - Yong-Ill Lee
- Department of Chemistry
- Changwon National University
- Changwon 51140
- Republic of Korea
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8
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Yang L, Wang J, Qu L, Liu Z, Jiang L. An enzyme inhibition-based lab-in-a-syringe device for point-of-need determination of pesticides. Analyst 2020; 145:3958-3966. [DOI: 10.1039/d0an00382d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An enzyme inhibition-based lab-in-a-syringe (EI-LIS) device was developed by integrating a 1-naphthol-linked bi-enzymatic reaction (sensor core) into the LIS (sensor device) for point-of-need monitoring of pesticide residues.
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Affiliation(s)
- Limin Yang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Jinxin Wang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Linjiao Qu
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Zhen Liu
- Department of Nuclear Medicine
- Union Hospital
- Tongji Medical College
- Huazhong University of Science and Technology
- Wuhan 430022
| | - Lei Jiang
- State Key Laboratory of Heavy Oil Processing and Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
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9
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Liu Z, Xia X, Zhou G, Ge L, Li F. Acetylcholinesterase-catalyzed silver deposition for ultrasensitive electrochemical biosensing of organophosphorus pesticides. Analyst 2020; 145:2339-2344. [DOI: 10.1039/c9an02546d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports, for the first time, acetylcholinesterase-catalyzed silver deposition for sensitive electrochemical detection of organophosphorus pesticides.
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Affiliation(s)
- Zhenhui Liu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Xin Xia
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Guoxing Zhou
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Lei Ge
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- People's Republic of China
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10
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Jeon SJ, Choi C, Ju JM, Lee S, Park JH, Kim JH. Tuning the response selectivity of graphene oxide fluorescence by organometallic complexation for neurotransmitter detection. NANOSCALE 2019; 11:5254-5264. [PMID: 30864583 DOI: 10.1039/c9nr00643e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is of great interest to design nanomaterial biosensors that can selectively detect target molecules without the use of fragile and expensive antibodies. Here, we report a chemical approach to modulate the response selectivity of graphene oxide (GO) fluorescence for neurotransmitters, in order to design an optical biosensor for the selective detection of dopamine without using antibodies. To this end, GO was functionalized with six different amino acids, followed by the immobilization of seven metal ions, resulting in the production of forty-two different GO nanohybrids (denoted GO-AA-MI derivatives). The fluorescence response of GO-AA-MI derivatives to dopamine, norepinephrine, and epinephrine was modulated by varying the type of amino acids and metal ions introduced. Tyrosine-modified GO with Fe2+ ions (GO-Y-Fe) exhibited selective quenching of its fluorescence in the presence of dopamine whereas lysine-modified GO with Au3+ ions (GO-K-Au) showed a selective increase in fluorescence upon addition of norepinephrine. The GO-Y-Fe sensor developed was able to differentiate dopamine from similar structures of norepinephrine and epinephrine, as well as abundant interferents such as ascorbic acid and uric acid, without the use of antibodies. In addition, the GO-Y-Fe sensor successfully detected dopamine secreted from living neuron cells in a rapid and simple manner.
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Affiliation(s)
- Su-Ji Jeon
- Department of Chemical Engineering, Hanyang University, Ansan 426-791, Republic of Korea.
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11
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Acetylcholinesterase biosensor based on functionalized surface of carbon nanotubes for monocrotophos detection. Anal Biochem 2018; 560:12-18. [DOI: 10.1016/j.ab.2018.08.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/27/2018] [Accepted: 08/28/2018] [Indexed: 11/20/2022]
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12
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Lu L, Su H, Liu Q, Li F. Development of a Luminescent Dinuclear Ir(III) Complex for Ultrasensitive Determination of Pesticides. Anal Chem 2018; 90:11716-11722. [PMID: 30192517 DOI: 10.1021/acs.analchem.8b03687] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
To improve the G-quadruplex specificity of Ir(III) complexes, a novel dinuclear Ir(III) complex (Din Ir(III)-1) was designed and synthesized through connecting two mononuclear Ir(III) complexes via a diphenyl bridge. Din Ir(III)-1 presents 3.4-4.1-fold enhancements for G-quadruplex relative to ssDNA and 4.3-5.3-fold enhancements relative to dsDNA in luminescence intensity, respectively, demonstrating an excellent G-quadruplex selectivity. Ascribed to its superior specificity to G-quadruplex, Din Ir(III)-1 was employed to construct a highly sensitive luminescent pesticides' detection platform. The detection is based on acetylcholinesterase (AChE)-catalyzed hydrolysis product-induced DNA conformational transformation and subsequent terminal deoxynucleotidyl transferase (TdT) directed G-quadruplex formation. The assay exhibited a linear response between the emission intensity of Din Ir(III)-1 and the pesticide concentration in the range of 0.5-25 μg/L ( R2 = 0.994), and the limit of detection for the pesticide was as low as 0.37 μg/L when using aldicarb as the model pesticide. Moreover, this strategy demonstrates good applicability for the pesticide detection in real samples. It is also versatile for the detection of other organophosphate or carbamate pesticides, which have the inhibition ability toward AChE. Therefore, the proposed approach is scalable for practical application in food safety and environmental monitoring fields and will provide promising solutions for the assay of pesticide residues.
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Affiliation(s)
- Lihua Lu
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , People's Republic of China
| | - Huijuan Su
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , People's Republic of China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering , Shandong University of Science and Technology , Qingdao 266510 , China
| | - Feng Li
- College of Chemistry and Pharmaceutical Sciences , Qingdao Agricultural University , Qingdao 266109 , People's Republic of China
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13
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Yang JK, Lee HR, Hwang IJ, Kim HI, Yim D, Kim JH. Fluorescent 2D WS 2 Nanosheets Bearing Chemical Affinity Elements for the Recognition of Glycated Hemoglobin. Adv Healthc Mater 2018; 7:e1701496. [PMID: 29761643 DOI: 10.1002/adhm.201701496] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 02/22/2018] [Indexed: 12/14/2022]
Abstract
It is required to exfoliate and functionalize 2D transition metal dichalcogenides (TMDs) in an aqueous solution for biological and medical applications. Herein, the approach for the simultaneous exfoliation and functionalization of 2D WS2 nanosheets using boronic acid-modified poly(vinyl alcohol) (B-PVA) in an aqueous solution is reported, and the B-PVA-functionalized WS2 nanosheets (B-PVA-WS2 ) are exploited as a fluorescent biosensor for the detection of glycated hemoglobin, HbA1c. The synthetic B-PVA polymer facilitates the exfoliation and functionalization of WS2 nanosheets from the bulk counterpart in the aqueous solution via a pulsed sonication process, resulting in fluorescent B-PVA-WS2 nanohybrids with a specific recognition of HbA1c. The fluorescence of the B-PVA-WS2 is quenched in the presence of HbA1c, whereas PVA-functionalized WS2 (PVA-WS2 ), not bearing boronic acid as a recognition moiety, shows no fluorescence changes upon the addition of the target. The B-PVA-WS2 is able to selectively detect HbA1c at the concentration as low as 3.3 × 10-8 m based on its specific fluorescence quenching.
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Affiliation(s)
- Jin-Kyoung Yang
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
| | - Hye-Rim Lee
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
| | - In-Jun Hwang
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
| | - Hye-In Kim
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
| | - DaBin Yim
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
| | - Jong-Ho Kim
- Department of Chemical Engineering; Hanyang University; Ansan 426-791 Republic of Korea
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14
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Zhang Q, Hu Y, Wu D, Ma S, Wang J, Rao J, Xu L, Xu H, Shao H, Guo Z, Wang S. Protein-mimicking nanowire-inspired electro-catalytic biosensor for probing acetylcholinesterase activity and its inhibitors. Talanta 2018; 183:258-267. [PMID: 29567174 DOI: 10.1016/j.talanta.2018.02.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/05/2018] [Accepted: 02/07/2018] [Indexed: 12/18/2022]
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15
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Lu Y, Liu X, Kuzum D. Graphene-based neurotechnologies for advanced neural interfaces. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2018. [DOI: 10.1016/j.cobme.2018.06.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Shi L, Liu Y, Wang Q, Wang T, Ding Y, Cao Y, Li Z, Wei H. A pH responsive AIE probe for enzyme assays. Analyst 2018; 143:741-746. [DOI: 10.1039/c7an01710c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
By combining leucine (Leu) and tetraphenylethene (TPE), a pH-sensitive aggregation induced emission (AIE) probe TPE-Leu was developed.
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Affiliation(s)
- Leilei Shi
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Yufeng Liu
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Qian Wang
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Tiankuo Wang
- School of Physics
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Yubin Ding
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Yi Cao
- School of Physics
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Zhe Li
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
| | - Hui Wei
- Department of Biomedical Engineering
- College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing
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17
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Shen Z, Chen T, Ma X, Ren W, Zhou Z, Zhu G, Zhang A, Liu Y, Song J, Li Z, Ruan H, Fan W, Lin L, Munasinghe J, Chen X, Wu A. Multifunctional Theranostic Nanoparticles Based on Exceedingly Small Magnetic Iron Oxide Nanoparticles for T 1-Weighted Magnetic Resonance Imaging and Chemotherapy. ACS NANO 2017; 11:10992-11004. [PMID: 29039917 DOI: 10.1021/acsnano.7b04924] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The recently emerged exceedingly small magnetic iron oxide nanoparticles (ES-MIONs) (<5 nm) are promising T1-weighted contrast agents for magnetic resonance imaging (MRI) due to their good biocompatibility compared with Gd-chelates. However, the best particle size of ES-MIONs for T1 imaging is still unknown because the synthesis of ES-MIONs with precise size control to clarify the relationship between the r1 (or r2/r1) and the particle size remains a challenge. In this study, we synthesized ES-MIONs with seven different sizes below 5 nm and found that 3.6 nm is the best particle size for ES-MIONs to be utilized as T1-weighted MR contrast agent. To enhance tumor targetability of theranostic nanoparticles and reduce the nonspecific uptake of nanoparticles by normal healthy cells, we constructed a drug delivery system based on the 3.6 nm ES-MIONs for T1-weighted tumor imaging and chemotherapy. The laser scanning confocal microscopy (LSCM) and flow cytometry analysis results demonstrate that our strategy of precise targeting via exposure or hiding of the targeting ligand RGD2 on demand is feasible. The MR imaging and chemotherapy results on the cancer cells and tumor-bearing mice reinforce that our DOX@ES-MION3@RGD2@mPEG3 nanoparticles are promising for high-resolution T1-weighted MR imaging and precise chemotherapy of tumors.
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Affiliation(s)
- Zheyu Shen
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Tianxiang Chen
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
| | - Xuehua Ma
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
| | - Wenzhi Ren
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
| | - Zijian Zhou
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Guizhi Zhu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Ariel Zhang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Yijing Liu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Jibin Song
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Zihou Li
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
| | - Huimin Ruan
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Lisen Lin
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Jeeva Munasinghe
- Mouse Imaging Facility, National Institute of Neurological Disorder and Stroke, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda, Maryland 20892, United States
| | - Aiguo Wu
- CAS Key Laboratory of Magnetic Materials and Devices, Key Laboratory of Additive Manufacturing Materials of Zhejiang Province, and Division of Functional Materials and Nanodevices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences , 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China
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18
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Nehra A, Chen W, Dimitrov DS, Puri A, Singh KP. Graphene Oxide-Polycarbonate Track-Etched Nanosieve Platform for Sensitive Detection of Human Immunodeficiency Virus Envelope Glycoprotein. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32621-32634. [PMID: 28876042 DOI: 10.1021/acsami.7b12103] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Solid-state nanopores within graphene-based materials are on the brink of fundamentally changing the sensing of desired bioanalytes through ion trafficking across nanoporous membranes. Here, we report on a two-electrode electrochemical biosensor comprised of a graphene oxide-polycarbonate track-etched nanosieve platform for the rapid and sensitive detection of the Human Immunodeficiency Virus Type 1 (HIV-1) envelope glycoprotein ectodomain (gp140MS). We have covalently linked an engineered high-affinity one-domain soluble CD4 fused to a human domain targeting HIV-1 coreceptor binding site and ferrocene (Fc) (2Dm2m) to the nanosieve platform. An exponential decrease in the ionic current resulted from a partial blockade of the nanosieve due to the specific interactions of gp140MS with the 2Dm2m protein, which was immobilized on the nanosieve platform by biolinkage as a function of applied voltages of 0.1-2.0 V. There was no change in current when a nonspecific antigen bovine serum albumin was tested under identical conditions. This platform had high sensitivity, and when the receptor-binding phenomenon was tested to identify the minimum concentration of target analyte, the lowest detection limit was as short as 8.3 fM and with sensitivity and response times of 0.87 mA mM-1 cm-1 and 12 s, respectively. In addition to this remarkable sensitivity, our nanobiorecognition platform has the advantage of superior stability due to the few layered graphene oxide laminates. It also exhibits exceptional biomolecule binding and higher reusability, sustainability, and ease of fabrication in a soft mechanism. Real samples of HIV positive and negative patients were successfully tested to confirm the virus by the developed platform. To the best of our knowledge, this is the first time prosperous pervious remembrance surface has been employed in a nanobiosensing application. In light of the recent great trend of using graphene-based nanopore surfaces created by sophisticated ion-beam methods in sensing and sequencing, this hybrid-surface nanolayer fabricated by the simple vacuum filtration of a few layered graphene oxide laminates may serve as a good alternative in terms of ease of fabrication without expensive instrumental prerequisites.
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Affiliation(s)
- Anuj Nehra
- Bio-Nanotechnology and Nanobiosensor Research Laboratory, Biophysics Unit, CBSH, G.B. Pant University of Agriculture & Technology , U.S. Nagar, Pantnagar, 263145 Uttarakhand, India
- Department of Molecular Biology, Biotechnology and Bioinformatics, Chaudhary Charan Singh Haryana Agriculture University , Hisar, 125004 Haryana, India
| | | | | | | | - Krishna Pal Singh
- Bio-Nanotechnology and Nanobiosensor Research Laboratory, Biophysics Unit, CBSH, G.B. Pant University of Agriculture & Technology , U.S. Nagar, Pantnagar, 263145 Uttarakhand, India
- Department of Molecular Biology, Biotechnology and Bioinformatics, Chaudhary Charan Singh Haryana Agriculture University , Hisar, 125004 Haryana, India
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19
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Mangalath S, Abraham S, Joseph J. pH-Responsive Fluorescence Enhancement in Graphene Oxide-Naphthalimide Nanoconjugates: A Fluorescence Turn-On Sensor for Acetylcholine. Chemistry 2017. [PMID: 28621503 DOI: 10.1002/chem.201702198] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A pH-sensitive, fluorescence "turn-on" sensor based on a graphene oxide-naphthalimide (GO-NI) nanoconjugate for the detection of acetylcholine (ACh) by monitoring the enzymatic activity of acetylcholinesterase (AChE) in aqueous solution is reported. These nanoconjugates were synthesized by covalently anchoring picolyl-substituted NI derivatives on the GO/reduced GO surface through a 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide/N-hydroxysuccinimide coupling strategy, and the morphological and photophysical properties were studied in detail. Synergistic effects of π-π interactions between GO and the NI chromophore, and efficient photoinduced electron- and energy-transfer processes, were responsible for the strong quenching of fluorescence of these nanoconjugates, which were perturbed under acidic pH conditions, leading to significant enhancement of fluorescence emission. This nanoconjugate was successfully employed for the efficient sensing of pH changes caused by the enzymatic activity of AChE, thereby demonstrating its utility as a fluorescence turn-on sensor for ACh in the neurophysiological range.
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Affiliation(s)
- Sreejith Mangalath
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, Kerala, India
| | - Silja Abraham
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India
| | - Joshy Joseph
- Photosciences and Photonics Section, Chemical Sciences, and Technology Division, CSIR-National Institute for, Interdisciplinary Science and Technology, Thiruvananthapuram, 695019, Kerala, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST Campus, Thiruvananthapuram, 695019, Kerala, India
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20
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Deng J, Lu D, Zhang X, Shi G, Zhou T. Highly sensitive GQDs-MnO 2 based assay with turn-on fluorescence for monitoring cerebrospinal acetylcholinesterase fluctuation: A biomarker for organophosphorus pesticides poisoning and management. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 224:436-444. [PMID: 28258856 DOI: 10.1016/j.envpol.2017.02.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 01/12/2017] [Accepted: 02/12/2017] [Indexed: 06/06/2023]
Abstract
In this study, we demonstrated an assay with turn-on fluorescence for monitoring cerebrospinal acetylcholinesterase (AChE) fluctuation as a biomarker for organophosphorus pesticides (OPs) poisoning and management based on single layer MnO2 nanosheets with graphene quantum dots (GQDs) as signal readout. Initially, the fluorescence of GQDs was quenched by MnO2 nanosheets mainly due to the inner filter effect (IFE). However, with the presence of reductive thiocholine (TCh), the enzymatic product, hydrolyzed from acetylthiocholine (ATCh) by AChE, the redox reaction between MnO2 and TCh occurred, leading to the destruction of the MnO2 nanosheets, and thereby IFE was diminished gradually. As a consequence, the turn-on fluorescence of GQDs with the changes in the spectrum of the dispersion constituted a new mechanism for sensing of cerebrospinal AChE. With the method developed here, we could monitor cerebrospinal AChE fluctuation of rats exposed to OPs before and after therapy, and could thereby open up the pathway to a new sensing platform for better understanding the mechanism of brain dysfunctions associate with OPs poisoning.
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Affiliation(s)
- Jingjing Deng
- School of Ecological and Environmental Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Dingkun Lu
- School of Ecological and Environmental Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Xiaolei Zhang
- School of Ecological and Environmental Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Guoyue Shi
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Tianshu Zhou
- School of Ecological and Environmental Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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21
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Kim MJ, Jeon SJ, Kang TW, Ju JM, Yim D, Kim HI, Park JH, Kim JH. 2H-WS 2 Quantum Dots Produced by Modulating the Dimension and Phase of 1T-Nanosheets for Antibody-Free Optical Sensing of Neurotransmitters. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12316-12323. [PMID: 28319663 DOI: 10.1021/acsami.7b01644] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Modulating the dimensions and phases of transition metal dichalcogenides is of great interest to enhance their intrinsic properties or to create new physicochemical properties. Herein, we report an effective approach to synthesize 2H-WS2 quantum dots (QDs) via the dimension and phase engineering of 1T-WS2 nanosheets. The solvothermal reaction of chemically exfoliated 1T-WS2 nanosheets in N-methyl-2-pyrrolidone (NMP) under an N2 atmosphere induced their chopping and phase transition at lower temperature to produce 2H-WS2 QDs with a high quantum yield (5.5 ± 0.3%). Interestingly, this chopping and phase transition process showed strong dependency on solvent; WS2 QDs were not produced in other solvents such as 1,4-dioxane and dimethyl sulfoxide. Mechanistic investigations suggested that NMP radicals played a crucial role in the effective production of 2H-WS2 QDs from 1T-WS2 nanosheets. WS2 QDs were successfully applied for the selective, sensitive, and rapid detection of dopamine in human serum (4 min, as low as 23.8 nM). The intense fluorescence of WS2 QDs was selectively quenched upon the addition of dopamine and Au3+ ions due to fluorescence resonance energy transfer between WS2 QDs and the quickly formed Au nanoparticles. This new sensing principle enabled us to discriminate dopamine from dopamine-derivative neurotransmitters including epinephrine and norepinephrine, as well as other interference compounds.
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Affiliation(s)
- Man-Jin Kim
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Su-Ji Jeon
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Tae Woog Kang
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Jong-Min Ju
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - DaBin Yim
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Hye-In Kim
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Jung Hyun Park
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
| | - Jong-Ho Kim
- Department of Chemical Engineering, Hanyang University , Ansan 426-791, Republic of Korea
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22
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Dalapati R, Sakthivel B, Ghosalya MK, Dhakshinamoorthy A, Biswas S. A cerium-based metal–organic framework having inherent oxidase-like activity applicable for colorimetric sensing of biothiols and aerobic oxidation of thiols. CrystEngComm 2017. [DOI: 10.1039/c7ce01053b] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A cerium-based MOF exhibits oxidase-like activity for colorimetric sensing of biothiols and aerobic oxidation of thiols.
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Affiliation(s)
- Rana Dalapati
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | | | | | - Shyam Biswas
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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23
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Chang J, Li H, Hou T, Li F. Paper-based fluorescent sensor for rapid naked-eye detection of acetylcholinesterase activity and organophosphorus pesticides with high sensitivity and selectivity. Biosens Bioelectron 2016; 86:971-977. [DOI: 10.1016/j.bios.2016.07.022] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 06/26/2016] [Accepted: 07/08/2016] [Indexed: 12/28/2022]
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