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Wang Y, Kong H, Chen R, Xu Z, Zhou P, Zhan Y, Huang W, Cheng H, Li L, Feng J. Determination of Aminophylline in Human Serum Using Hydrogel Microspheres for Coupled Surface-Enhanced Raman Spectroscopy (SERS) and Solid-Phase Extraction. APPLIED SPECTROSCOPY 2024; 78:551-560. [PMID: 38389424 DOI: 10.1177/00037028241233016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Aminophylline (AMP) is a bronchodilator. The therapeutic and toxic doses are very close. Therefore, therapeutic drug monitoring (TDM) of AMP is essential in clinical practice. Microgels were synthesized by free radical precipitation polymerization. Silver@poly(N-isopropyl acrylamide) (Ag@PNIPAM) hybrid microgels were obtained by loading silver (Ag) nanoparticles into the three-dimensional network of the microgels by in situ reduction. The microgel is a three-dimensional reticular structure with tunable pore size, large specific surface area, and good biocompatibility, which can be used as a sorbent for solid-phase extraction (SPE) of target molecules in complex matrices and as a surface-enhanced Raman spectroscopy (SERS) substrate. We optimized the conditions affecting SERS enhancement, such as silver nitrate (AgNO3) concentration and SPE time, according to the SERS strategy of Ag@PNIPAM hybrid microgels to achieve label-free TDM for trace AMP in human serum. The results showed good linearity between the logarithmic concentration of AMP and its SERS intensity in the range of 1-1.1 × 102 µg/mL, with a correlation coefficient (R2) of 0.9947 and a low detection limit of 0.61 µg/mL. The assay accuracy was demonstrated by spiking experiments, with recoveries ranging from 93.0 to 101.8%. The method is rapid, sensitive, reproducible, requires simple sample pretreatment, and has good potential for use in clinical treatment drug monitoring.
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Affiliation(s)
- Ying Wang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Hongxing Kong
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Ruijue Chen
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Ziwei Xu
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Pei Zhou
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Yaqin Zhan
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
| | - Wenyi Huang
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
- Province and Ministry Co-Sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, Guangxi, China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
- Province and Ministry Co-Sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, Guangxi, China
| | - Lijun Li
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
- Province and Ministry Co-Sponsored Collaborative Innovation Center of Sugarcane and Sugar Industry, Nanning, Guangxi, China
| | - Jun Feng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, Faculty of Medicine/College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou City, Guangxi, China
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Cho H, Bae G, Hong BH. Engineering functionalization and properties of graphene quantum dots (GQDs) with controllable synthesis for energy and display applications. NANOSCALE 2024; 16:3347-3378. [PMID: 38288500 DOI: 10.1039/d3nr05842e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Graphene quantum dots (GQDs), a new type of 0D nanomaterial, are composed of a graphene lattice with sp2 bonding carbon core and characterized by their abundant edges and wide surface area. This unique structure imparts excellent electrical properties and exceptional physicochemical adsorption capabilities to GQDs. Additionally, the reduction in dimensionality of graphene leads to an open band gap in GQDs, resulting in their unique optical properties. The functional groups and dopants in GQDs are key factors that allow the modulation of these characteristics. So, controlling the functionalization level of GQDs is crucial for understanding their characteristics and further application. This review provides an overview of the properties and structure of GQDs and summarizes recent developments in research that focus on their controllable synthesis, involving functional groups and doping. Additionally, we provide a comprehensive and focused explanation of how GQDs have been advantageously applied in recent years, particularly in the fields of energy storage devices and displays.
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Affiliation(s)
- Hyeonwoo Cho
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Gaeun Bae
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Byung Hee Hong
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
- Graphene Research Center, Advanced Institute of Convergence Technology, Suwon 16229, Republic of Korea
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Kurup CP, Ahmed MU. Nanozymes towards Personalized Diagnostics: A Recent Progress in Biosensing. BIOSENSORS 2023; 13:bios13040461. [PMID: 37185536 PMCID: PMC10136715 DOI: 10.3390/bios13040461] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/24/2023] [Accepted: 04/04/2023] [Indexed: 05/17/2023]
Abstract
This review highlights the recent advancements in the field of nanozymes and their applications in the development of point-of-care biosensors. The use of nanozymes as enzyme-mimicking components in biosensing systems has led to improved performance and miniaturization of these sensors. The unique properties of nanozymes, such as high stability, robustness, and surface tunability, make them an attractive alternative to traditional enzymes in biosensing applications. Researchers have explored a wide range of nanomaterials, including metals, metal oxides, and metal-organic frameworks, for the development of nanozyme-based biosensors. Different sensing strategies, such as colorimetric, fluorescent, electrochemical and SERS, have been implemented using nanozymes as signal-producing components. Despite the numerous advantages, there are also challenges associated with nanozyme-based biosensors, including stability and specificity, which need to be addressed for their wider applications. The future of nanozyme-based biosensors looks promising, with the potential to bring a paradigm shift in biomolecular sensing. The development of highly specific, multi-enzyme mimicking nanozymes could lead to the creation of highly sensitive and low-biofouling biosensors. Integration of nanozymes into point-of-care diagnostics promises to revolutionize healthcare by improving patient outcomes and reducing costs while enhancing the accuracy and sensitivity of diagnostic tools.
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Affiliation(s)
- Chitra Padmakumari Kurup
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
| | - Minhaz Uddin Ahmed
- Biosensors and Nanobiotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
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Mohammadi R, Naderi-Manesh H, Farzin L, Vaezi Z, Ayarri N, Samandari L, Shamsipur M. Fluorescence sensing and imaging with carbon-based quantum dots for early diagnosis of cancer: A review. J Pharm Biomed Anal 2022; 212:114628. [DOI: 10.1016/j.jpba.2022.114628] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 01/10/2022] [Accepted: 01/25/2022] [Indexed: 12/13/2022]
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Abdel Hamid MA, Mabrouk MM, Ahmed HM, Samy B, Batakoushy HA. Carbon quantum dots as a sensitive fluorescent probe for quantitation of pregabalin; application to real samples and content uniformity test. LUMINESCENCE 2021; 37:170-176. [PMID: 34747089 DOI: 10.1002/bio.4158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/28/2021] [Accepted: 10/28/2021] [Indexed: 11/10/2022]
Abstract
A novel optical nano-sensor for the detection of pregabalin (PG) in its pharmaceutical (Lyrica®) capsules and biological samples was reported. For the fabrication of highly fluorescent carbon quantum dots (CQDts), a simple green hydrothermal approach was described, and ascorbic acid (AA) was used as a carbon source. The obtained CQDts were confirmed by spectroscopic characterization such as transmission electron microscopy (TEM) and Fourier-transform infrared (FTIR) spectra. The synthesized CQDts were capped by alcohol to form yellow emitters, showing strong fluorescent emission at 524 nm, and excitation at 356 nm. The method is based on fluorescence quenching of CQDts in the presence of PG. The proposed analytical method was validated according to ICH guidelines. PG was successively assayed in the concentration range of 4.0 to 100 μg/ml). The detection and quantitation limits were 1.12 and 3.39 μg/ml, respectively. The proposed method could be used in both quality control and pharmacokinetic research for the studied drug.
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Affiliation(s)
- Mohamed A Abdel Hamid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - Mokhtar M Mabrouk
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Tanta University, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Bassant Samy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Hany A Batakoushy
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
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Nano optical and electrochemical sensors and biosensors for detection of narrow therapeutic index drugs. Mikrochim Acta 2021; 188:411. [PMID: 34741213 DOI: 10.1007/s00604-021-05003-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/24/2021] [Indexed: 01/02/2023]
Abstract
For the first time, a comprehensive review is presented on the quantitative determination of narrow therapeutic index drugs (NTIDs) by nano optical and electrochemical sensors and biosensors. NTIDs have a narrow index between their effective doses and those at which they produce adverse toxic effects. Therefore, accurate determination of these drugs is very important for clinicians to provide a clear judgment about drug therapy for patients. Routine analytical techniques have limitations such as being expensive, laborious, and time-consuming, and need a skilled user and therefore the nano/(bio)sensing technology leads to high interest.
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Milenković M, Mišović A, Jovanović D, Popović Bijelić A, Ciasca G, Romanò S, Bonasera A, Mojsin M, Pejić J, Stevanović M, Jovanović S. Facile Synthesis of L-Cysteine Functionalized Graphene Quantum Dots as a Bioimaging and Photosensitive Agent. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1879. [PMID: 34443709 PMCID: PMC8401491 DOI: 10.3390/nano11081879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/15/2021] [Accepted: 07/17/2021] [Indexed: 01/12/2023]
Abstract
Nowadays, a larger number of aggressive and corrosive chemical reagents as well as toxic solvents are used to achieve structural modification and cleaning of the final products. These lead to the production of residual, waste chemicals, which are often reactive, cancerogenic, and toxic to the environment. This study shows a new approach to the modification of graphene quantum dots (GQDs) using gamma irradiation where the usage of reagents was avoided. We achieved the incorporation of S and N atoms in the GQD structure by selecting an aqueous solution of L-cysteine as an irradiation medium. GQDs were exposed to gamma-irradiation at doses of 25, 50 and 200 kGy. After irradiation, the optical, structural, and morphological properties, as well as the possibility of their use as an agent in bioimaging and photodynamic therapy, were studied. We measured an enhanced quantum yield of photoluminescence with the highest dose of 25 kGy (21.60%). Both S- and N-functional groups were detected in all gamma-irradiated GQDs: amino, amide, thiol, and thione. Spin trap electron paramagnetic resonance showed that GQDs irradiated with 25 kGy can generate singlet oxygen upon illumination. Bioimaging on HeLa cells showed the best visibility for cells treated with GQDs irradiated with 25 kGy, while cytotoxicity was not detected after treatment of HeLa cells with gamma-irradiated GQDs.
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Affiliation(s)
- Mila Milenković
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia; (M.M.); (A.M.); (D.J.)
| | - Aleksandra Mišović
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia; (M.M.); (A.M.); (D.J.)
| | - Dragana Jovanović
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia; (M.M.); (A.M.); (D.J.)
| | - Ana Popović Bijelić
- Faculty of Physical Chemistry, University of Belgrade, P.O. Box 47, 11158 Belgrade, Serbia;
| | - Gabriele Ciasca
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.C.); (S.R.)
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
| | - Sabrina Romanò
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy; (G.C.); (S.R.)
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Roma, Italy
| | - Aurelio Bonasera
- Department of Physics and Chemistry, Emilio Segrè, University of Palermo, 90128 Palermo, Italy;
- INSTM-Palermo Research Unit, Viale delle Scienze, bdg. 17, 90128 Palermo, Italy
| | - Marija Mojsin
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 152, 11042 Belgrade, Serbia; (M.M.); (J.P.); (M.S.)
| | - Jelena Pejić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 152, 11042 Belgrade, Serbia; (M.M.); (J.P.); (M.S.)
| | - Milena Stevanović
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, 152, 11042 Belgrade, Serbia; (M.M.); (J.P.); (M.S.)
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Knez Mihailova 35, 11000 Belgrade, Serbia
| | - Svetlana Jovanović
- “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia; (M.M.); (A.M.); (D.J.)
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Wang Y, Hu X, Li W, Huang X, Li Z, Zhang W, Zhang X, Zou X, Shi J. Preparation of boron nitrogen co-doped carbon quantum dots for rapid detection of Cr(VI). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118807. [PMID: 32827916 DOI: 10.1016/j.saa.2020.118807] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/16/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
A novel fluorescent probe based on the static quenching and the inner filter effect between boron nitrogen co-doped carbon quantum dots (B, N-CDs) and Cr(VI) was developed for the quantitative determination of Cr(VI) in real water samples. B, N-CDs were prepared using the hydrothermal method with ammonium citrate and bis(pinacolato) diboron as raw materials. Compared with undoped CDs, the fluorescence properties of the B, N-CDs were improved. The fluorescence quantum yield of the B, N-CDs was as high as 59.01%. After optimization of the experimental parameters, the B, N-CDs could be used as a fluorescence probe to detect Cr(VI). Strong linear correlation (R2 = 0.9986) was established in the Cr(VI) concentration range 0.3-500 μM, and a detection limit of 0.24 μM was achieved. Moreover, the B, N-CDs successfully detected Cr(VI) in real water samples, indicating that they have broad application prospects in the sensitive detection of Cr(VI).
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Affiliation(s)
- Yueying Wang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xuetao Hu
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wenting Li
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaowei Huang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Zhihua Li
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wen Zhang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xinai Zhang
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Xiaobo Zou
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Jiyong Shi
- Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; China-UK Joint Laboratory for Nondestructive Detection of Agro-products, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
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Li N, Zhong YQ, Liu SG, He YQ, Fan YZ, Hu JH, Mai X. Smartphone assisted colorimetric and fluorescent triple-channel signal sensor for ascorbic acid assay based on oxidase-like CoOOH nanoflakes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 238:118412. [PMID: 32388232 DOI: 10.1016/j.saa.2020.118412] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/21/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
Ascorbic acid (AA) is an important diet-derived antioxidant to human body. Thus, efficient and accurate detection of AA is of considerable significance in food analysis. Herein, smartphone assisted colorimetric and fluorescent triple-channel signal sensor has been developed for AA monitoring based on oxidase-like CoOOH nanoflakes. CoOOH nanoflakes can efficiently catalyze the oxidation of p-phenylenediamine (p-PD) into reddish brown p-PDox. The carbon dots (C-dots) are further introduced, of which the fluorescence can be quenched by p-PDox. However, in the presence of AA, the CoOOH nanoflakes is reduced and thus collapsed. As a result, the oxidation of p-PD is restrained, and thus the fluorescence of C-dots keeps strong. Based on AA induced light color, low absorbance, and strong fluorescence, triple-channel signal sensor has been proposed for AA determination. The AA assay shows a dynamic response range from 0.5 to 10 μM with a detection limit of 0.09 μM. The method assay allows detection of AA in real samples such as fruit juices. Combination with portable smartphone, the developed sensor is potential for AA determination in resource-poor settings.
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Affiliation(s)
- Na Li
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China.
| | - Yong Qing Zhong
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Shi Gang Liu
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, PR China
| | - Yong Qin He
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Yu Zhu Fan
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jian Hua Hu
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China
| | - Xi Mai
- School of Pharmaceutical Science, Nanchang University, Nanchang 330006, PR China.
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