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Li P, Luo C, Chen X, Huang C. A novel "off-on" ratiometric fluorescent aptasensor for adenosine detection based on FRET between quantum dots and graphene oxide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123557. [PMID: 37866265 DOI: 10.1016/j.saa.2023.123557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/30/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
A novel "off-on" ratiometric fluorescent aptasensor was established for adenosine detection based on fluorescence resonance energy transfer (FRET) between CdS QDs, DNA QDs as donor and graphene oxide (GO) as acceptor. Amino-riched DNA QDs covalently bonded to the carboxyl group on the edge of the GO, and with the absorption of the TGA-modified CdS QDs with aptamer (CdS QDs-apt) onto the GO surface via the π-π stacking interaction. The fluorescence of both CdS QDs and DNA QDs were efficiently quenched due to FRET (turn off). When adenosine was present, the specific binding of the aptamer to the target preferentially that released the CdS QDs-apt from GO. The process would inhibit the FRET which contribute to the fluorescence of CdS QDs-apt recovery again (turn on), while the fluorescence intensity of DNA QDs only slightly altered and acted as the reference signal. Thus, a novel "off-on" ratiometric fluorescent aptasensor for adenosine detection was constructed accordingly. There was a good linearity relationship between the ratio of the FL intensity (F595 nm/F464 nm) and the concentration of adenosine in the range of 20.00-180.0 nmol/L with a detection limit of 1.3 nmol/L (S/N = 3, n = 9). Importantly, the feasibility of the developed aptasensor for selective detection of adenosine in serum and urine samples with satisfactory results. The recoveries were observed to be 97.04-100.2 %.
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Affiliation(s)
- Pu Li
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Chen Luo
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Xiaoxiao Chen
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China
| | - Chaobiao Huang
- Xingzhi College, Zhejiang Normal University, Lanxi 321100, China; College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
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2
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Fan Y, Wang X, Huang H, Yang Y, Guo J, Luo S, Zhao M, Li Y. A visual ratiometric fluorescence sensor for glutathione response based on MnO 2 nanowires as an oxidant, quencher and recognition unit. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:419-429. [PMID: 36606523 DOI: 10.1039/d2ay01812h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
As the "mother of antioxidants", glutathione (GSH) plays an important role in physiological functions. Rapid and accurate monitoring of GSH is of great significance for medicinal chemistry, food chemistry, and clinical medicine. We herein report a visual ratiometric fluorescence sensor based on MnO2 nanowires (MnO2 NWs) as an oxidant, quencher and recognition unit for the determination of GSH. The powerful ratiometric fluorescent probe was constructed by mixing thiamine (VB1) and rhodamine B (RhB) with the help of MnO2 NWs. MnO2 NWs could not only effectively quench the fluorescence of RhB due to the inner filter effect (IFE), but also oxidized non-fluorescent VB1 to blue fluorescent thiochrome (oxVB1). Upon interaction with GSH, the quenched RhB fluorescence could be rapidly restored through decomposition of MnO2 NWs into Mn2+, while the oxVB1 fluorescence decreased, showing an apparent color change from blue to red. The concentration of GSH was proportional to the ratio of fluorescence intensities of RhB and oxVB1, and the detection linear range was 1 to 10 000 μM with comparable selectivity. This ratio fluorescence sensor was successfully applied to GSH determination in whitening capsules and glutathione tablets with satisfactory results, and the sensor may be a potentially powerful tool for the detection of GSH.
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Affiliation(s)
- Yu Fan
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Xin Wang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - He Huang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yumeng Yang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Jinlin Guo
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shajie Luo
- Chongqing Key Laboratory of Sichuan-Chongqing Co-Construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Meilian Zhao
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yang Li
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Fang X, Wang Y, Wang S, Liu B. Nanomaterials assisted exosomes isolation and analysis towards liquid biopsy. Mater Today Bio 2022; 16:100371. [PMID: 35937576 PMCID: PMC9352971 DOI: 10.1016/j.mtbio.2022.100371] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/13/2022] [Accepted: 07/17/2022] [Indexed: 11/18/2022] Open
Abstract
Exosomes has attracted tremendous research interests as they are emerging as a new paradigm of liquid biopsy. Although the concentration of exosomes in blood is relatively abundant, there still exists various vesicle-like nanoparticles, such as microvesicles, apoptotic bodies. It's an urgent need to isolate and enrich exosomes from the complex contaminants in biofluid samples. Moreover, the expressing level of exosomal biomarkers varies a lot, which make the sensitive molecular detection of exosomes in high demand. Unfortunately, the efficient isolation and sensitive molecular quantification of exosomes is still a major obstacle hindering the further development and clinical application of exosome-based liquid biopsy. Nanomaterials, with unique physiochemical properties, have been widely used in biosensing and analysis aspects, thus they are thought as powerful tools for effective purification and molecular analysis of exosomes. In this review, we summarized the most recent progresses in nanomaterials assisted exosome isolation and analysis towards liquid biopsy. On the one hand, nanomaterials can be used as capture substrates to afford large binding area and specific affinity to exosomes. Meanwhile, nanomaterials can also be served as promising signal transducers and amplifiers for molecular detection of exosomes. Furthermore, we also pointed out several potential and promising research directions in nanomaterials assisted exosome analysis. It's envisioned that this review will give the audience a complete outline of nanomaterials in exosome study, and further promote the intersection of nanotechnology and bio-analysis.
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Affiliation(s)
- Xiaoni Fang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yuqing Wang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Shurong Wang
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Baohong Liu
- School of Pharmacy, Shanghai Stomatological Hospital, Department of Chemistry, Fudan University, Shanghai, 200438, China
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Deng X, Wu S, Zang S, Liu X, Ma Y. PDA-PEI-Copolymerized Nanodots with Tailorable Fluorescence Emission and Quenching Properties for the Sensitive Ratiometric Fluorescence Sensing of miRNA in Serum. Anal Chem 2022; 94:14546-14553. [PMID: 36215706 DOI: 10.1021/acs.analchem.2c02156] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dopamine and polyethyleneimine (PEI) copolymerized nanodots (PDA-PEI nanodots) with both fluorescence emission and quenching features were synthesized by a simple one-step reaction at room temperature. By adjusting the dopamine and PEI ratio as well as the chain length of PEI, the fluorescence emission and quenching properties of PDA-PEI nanodots can be controlled well. Under optimal conditions, the nanodots showed strong green fluorescence emission with an absolute quantum yield of 1-2% and a quenching efficiency of more than 99% to several fluorophores with emission wavelengths ranging from blue to red light regions. The nanodots with a large number of functional groups also showed strong affinity to nucleic acid strands, excellent solubility in aqueous solution, long-term stability, and uniform size distribution. Integrating these attractive features with the specific enzymatic digestion reaction of the DSN enzyme, a highly sensitive ratiometric fluorescence nanoprobe for miRNA analysis was developed. Aminomethylcoumarin acetate (AMCA), which possesses the same excitation wavelength but a well-resolved blue fluorescence emission with PDA-PEI nanodots, was selected as the signal-reporting unit for capture probe labeling, while the inherent green fluorescence of PDA-PEI nanodots served as the reference. According to the ratiometric fluorescence signal, the ratiometric fluorescence nanoprobes showed high sensitivity and good accuracy for the miRNA assay. Because of the high and universal quenching efficiency, stable fluorescence emission, easily assembled interface, and uniform morphology, the nanodots may have great application prospects to serve as a universal nanoplatform for the fabrication of ratiometric fluorescence nanoprobes.
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Affiliation(s)
- Xunxun Deng
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Shuo Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Shiyu Zang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Xiaobo Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Yingyan Ma
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
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Liu X, Xu J, Lou Y, Pan C, Zhang Y, Wang Z. Aptamer-Based Fluorescence Detection and Selective Disinfection of Salmonella Typhimurium by Using Hollow Carbon Nitride Nanosphere. BIOSENSORS 2022; 12:228. [PMID: 35448289 PMCID: PMC9027708 DOI: 10.3390/bios12040228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Hollow carbon nitride nanosphere (HCNS) was synthesized via the hard template method to improve the fluorescence characteristics, drug delivery ability, and photocatalytic activity. Blue fluorescent HCNS was utilized as a quenching agent and an internal reference to combine with Cy5-labelled aptamer (Cy5-Apt), resulting in an off-on fluorescence aptasensing method for the detection of Salmonella typhimurium (S. typhimurium). Under optimum conditions, this fluorescence assay presented a linear range from 30 to 3 × 104 CFU mL-1 with a detection limit of 13 CFU mL-1. In addition, HCNS was also used as a drug carrier to load chloramphenicol (Cap) molecules. The Cap-loading amount of HCNS could reach 550 μg mg-1 within 24 h, whereas the corresponding Cap-release amount is 302.5 μg mg-1 under acidic and irradiation conditions. The integration of photocatalyst with antibiotic could endow HCNS-Cap with better disinfection performance. The bactericidal efficiency of HCNS-Cap (95.0%) against S. typhimurium within 12 h was better than those of HCNS (85.1%) and Cap (72.9%). In addition, selective disinfection of S. typhimurium was further realized by decorating aptamer. Within 4 h, almost all S. Typhimurium were inactivated by HCNS-Cap-Apt, whereas only 13.3% and 48.2% of Staphylococcus aureus and Escherichia coli cells were killed, respectively. Therefore, HCNS is a promising bio-platform for aptamer-based fluorescence detection and selective disinfection of S. typhimurium.
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Affiliation(s)
- Xinyi Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
| | - Jing Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
| | - Yang Lou
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (Y.L.); (C.P.)
| | - Chengsi Pan
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China; (Y.L.); (C.P.)
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, China;
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, China;
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi 214122, China
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Huang Y, Zhang Q. Highly Efficient Removal of Cu(II) with Modified Electrolytic Manganese Residue as A Novel Adsorbent. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-06506-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Deng X, Liu X, Wu S, Zang S, Lin X, Zhao Y, Duan C. Ratiometric Fluorescence Imaging of Intracellular MicroRNA with NIR-Assisted Signal Amplification by a Ru-SiO 2@Polydopamine Nanoplatform. ACS APPLIED MATERIALS & INTERFACES 2021; 13:45214-45223. [PMID: 34524789 DOI: 10.1021/acsami.1c11324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Accurate and sensitive fluorescence imaging of intracellular miRNA is essential for understanding the mechanism underlying some physiological and pathological events, as well as the prevention and diagnosis of diseases. Herein, a highly sensitive ratiometric fluorescent nanoprobe for intracellular miRNA imaging was fabricated by integrating a Ru-SiO2@polydopamine (Ru-SiO2@PDA) nanoplatform with a near-infrared light (NIR)-assisted DNA strand displacement signal amplification strategy. The Ru-SiO2@PDA spheres have excellent biosafety, high photothermal effect, and unique photophysical properties that can both emit a stable red fluorescence and well quench the fluorophores getting closer to them. So, when the fuel DNA and carboxyfluorescein (FAM)-labeled signal DNA are co-assembled on their outer surfaces, the FAM's green fluorescence is quenched, and a low ratiometric signal is obtained. However, in the presence of miRNA, the target displaces the signal DNA from the capture DNA, releasing the signal DNA far away from the Ru-SiO2@PDA. Then, the green fluorescence recovers and leads to an enhanced Igreen/Ired value. Under NIR light irradiation, the Ru-SiO2@PDA increases the local temperature around the probe and triggers the release of fuel DNA, which thus recycles the target miRNA and effectively amplifies the ratiometric signal. Using A549 cells as a model, the nanoprobe realizes the highly sensitive ratiometric fluorescence imaging of miRNA let-7a, as well as its in vivo up- and down-regulation expressions. It provides a facile tool for highly sensitive and accurate intracellular miRNA detection through one-step incubation and may pave a new avenue for single-cell analysis.
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Affiliation(s)
- Xunxun Deng
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
- Zhangdayu School of Chemistry, Dalian University of Technology, Dalian 116023, P. R. China
| | - Xiaobo Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Shuo Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Shiyu Zang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Xiaotong Lin
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Yanqiu Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, P. R. China
| | - Chunying Duan
- Zhangdayu School of Chemistry, Dalian University of Technology, Dalian 116023, P. R. China
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Zhang SQ, Liu X, Sun QX, Chen ML, Wang JH. Terbium doping of graphitic carbon nitride endows a highly sensitive ratiometric fluorescence assay of alkaline phosphatase. Chem Commun (Camb) 2021; 57:8746-8749. [PMID: 34378584 DOI: 10.1039/d1cc03580k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Terbium doped graphitic carbon nitride (g-C3N4:Tb) gives rise to two exceptional emissions at λex/λem = 290/490 nm and 290/546 nm, with extremely narrow peak widths of FWHM < 12 nm as well as a large Stokes shift of >200 nm. The modification of g-C3N4:Tb with HOOC-PEG-COOH provides a ratiometric fluorescent probe which ensures highly sensitive detection of alkaline phosphatase (ALP) activity based on the inner filter effect (IFE).
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Affiliation(s)
- Shang-Qing Zhang
- Department of Chemistry, Northeastern University, Box 332, Shenyang 110819, China.
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Guo FN, Wang YT, Wu N, Feng LX, Zhang HC, Yang T, Wang JH. Carbon nitride nanoparticles as ultrasensitive fluorescent probes for the detection of α-glucosidase activity and inhibitor screening. Analyst 2021; 146:1016-1022. [PMID: 33295353 DOI: 10.1039/d0an02079f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In recent years, α-glucosidase inhibitors (AGIs) have played a significant role in the treatment of type II diabetes (T2D), so it is necessary to develop a reliable and sensitive method to find new AGIs. Herein, we establish a novel method based on fluorescent carbon nitride nanoparticles (CNNPs) for the sensitive detection of the activity of α-glucosidase (α-glu) and the screening of its inhibitors. A CNNP-based fluorescent probe is synthesized from green raw materials, urea and lysine, by a one-pot method. In the presence of α-glu, the substrate 4-nitrophenyl-α-d-glucopyranoside (pNPG) is hydrolyzed to generate 4-nitrophenol (pNP), leading to the fluorescence (FL) quenching of CNNPs due to the inner filter effect (IFE). On the other hand, the activity of α-glu is inhibited after the addition of AGIs, which turns on the FL of CNNPs. In this way, the detection of α-glu activity and the screening of AGIs are achieved. The linear range is 1.25-10.00 U L-1 with a limit of detection as low as 0.17 U L-1 and the IC50 values of two typical inhibitors (gallic acid and acarbose) are 813 μM and 465 μM, respectively. The CNNP probe is further applied for the determination of α-glu activity in human serum samples with satisfactory results.
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Affiliation(s)
- Feng-Na Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China.
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Zhu L, Yu L, Ye J, Yan M, Peng Y, Huang J, Yang X. A ratiometric electrochemiluminescence strategy based on two-dimensional nanomaterial-nucleic acid interactions for biosensing and logic gates operation. Biosens Bioelectron 2021; 178:113022. [PMID: 33513536 DOI: 10.1016/j.bios.2021.113022] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/29/2022]
Abstract
Two-dimensional (2D) nanomaterial-nucleic acid interactions have been widely used in the construction of fluorescent sensors, but they are rarely used in the construction of electrochemiluminescent (ECL) sensors and have never been used in the design of ratiometric ECL sensors. Therefore, a ratiometric ECL sensing platform was developed in this study based on the ECL resonance energy transfer (ECL-RET) of graphitic carbon nitride nanosheets (GCNNs)/Ru(bpy)32+ donor/acceptor pair. The 2D GCNNs showed much weaker affinity to the long dsDNA duplexes formed by hybridization chain reaction (HCR) than Ru(bpy)32+-lableled fuel hairpin DNAs (H1 and H2) for HCR. Therefore, the target-initiated HCR resulted in the luminescence enhancement of the GCNNs at 460 nm and the luminescence attenuation of the Ru(bpy)32+ at 610 nm. By measuring the I460 nm/I610 nm ratios, quantitative analysis of microRNA-133a was realized with a limit of detection of 0.41 pM. In addition, this ECL-RET sensing platform can be easily extended to detect metal ions or aptamer substrates by simply redesigning helper DNAs without changing the sequences of fuel hairpin DNAs. Moreover, due to the programmability of HCR, a series of sensitive logic gates ("OR", "INHIBIT", "AND", "NAND" and "INHIBIT-OR") based on the ECL-RET ratiometry can be constructed and responded to as low as 100 pM of Hg2+ or Ag+.
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Affiliation(s)
- Liping Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Linying Yu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China
| | - Jing Ye
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Mengxia Yan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China
| | - Yao Peng
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Jianshe Huang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China.
| | - Xiurong Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China.
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Chouhan RS, Jerman I, Heath D, Bohm S, Gandhi S, Sadhu V, Baker S, Horvat M. Emerging tri‐s‐triazine‐based graphitic carbon nitride: A potential signal‐transducing nanostructured material for sensor applications. NANO SELECT 2020. [DOI: 10.1002/nano.202000228] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
| | - Ivan Jerman
- National Institute of Chemistry Ljubljana Slovenia
| | - David Heath
- Department of Environmental Sciences Jožef Stefan Institute Ljubljana Slovenia
| | - Sivasambu Bohm
- Royal Society Industry Fellow Molecular Science Research Hub Imperial College London London UK
| | - Sonu Gandhi
- DBT‐National Institute of Animal Biotechnology (DBT‐NIAB) Hyderabad Telangana India
| | - Veera Sadhu
- School of Physical Sciences Kakatiya Institute of Technology & Science (KITS) Warangal Telangana India
| | - Syed Baker
- Department of Microbiology Prof. V.F. Voino‐Yasenetsky Krasnoyarsk State Medical University Krasnoyarsk Siberia Russian Federation
| | - Milena Horvat
- Department of Environmental Sciences Jožef Stefan Institute Ljubljana Slovenia
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12
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Deng X, Wu S, Li Z, Zhao Y, Duan C. Ratiometric Detection of DNA and Protein in Serum by a Universal Tripyridinyl RuII Complex–Encapsulated SiO2@Polydopamine Fluorescence Nanoplatform. Anal Chem 2020; 92:15908-15915. [DOI: 10.1021/acs.analchem.0c03306] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xunxun Deng
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, PR China
- Zhangdayu School of Chemistry, Dalian University of Technology, Dalian 116023, PR China
| | - Shuo Wu
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, PR China
| | - Zhipeng Li
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, PR China
| | - Yanqiu Zhao
- School of Chemical Engineering, Dalian University of Technology, Dalian 116023, PR China
| | - Chunying Duan
- Zhangdayu School of Chemistry, Dalian University of Technology, Dalian 116023, PR China
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Shirani M, Kalantari H, Khodayar MJ, Kouchak M, Rahbar N. A novel strategy for detection of small molecules based on aptamer/gold nanoparticles/graphitic carbon nitride nanosheets as fluorescent biosensor. Talanta 2020; 219:121235. [PMID: 32887126 DOI: 10.1016/j.talanta.2020.121235] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/31/2020] [Accepted: 05/31/2020] [Indexed: 02/02/2023]
Abstract
Herein, a novel ultrasensitive strategy has been developed by designing a label free fluorescent nano-aptasensor for monitoring of small moecules in human plasma. In this nano-aptasensor, graphitic carbon nitride nanosheets were used as fluorescent probe. The fluorescence intensity of the probe was decreased by interaction between graphitic carbon nitride nanosheets and label-free aptamer/gold nanoparticles conjugate, via Fluorescence resonance energy transfer mechanism. Upon addition of the analyte, the fluorescence of graphitic carbon nitride nanosheets was restored due to the aptamer/analyte interaction, and the aggregation of gold nanoparticles in the presence of salt. The influence of various factors on sensing method was investigated, and under the approved conditions, the fluorescence signal showed a linear relation with Digoxin concentration in the range of 10-500 ng L-1 with limit of detection down to 3.2 ng L-1 relative standard deviations for 25, 100 and 500 ng L-1 of analyte concentrations were 2.6, 4.0 and 6.5%, respectively. This strategy provided a simple, rapid, cost effective and reproducible experimental model, with successful application for determination of Digoxin in plasma samples without any pretreatment steps.
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Affiliation(s)
- Maryam Shirani
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Heibatullah Kalantari
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Javad Khodayar
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Toxicology, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Kouchak
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Pharmaceutics, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nadereh Rahbar
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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14
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Liu JL, Jiang J, Zhang JQ, Chai YQ, Xiao Q, Yuan R. The combination of ternary electrochemiluminescence system of g-C 3N 4 nanosheet/TEA/Cu@Cu 2O and G-quadruplex-driven regeneration strategy for ultrasensitive bioanalysis. Biosens Bioelectron 2020; 152:112006. [PMID: 31941615 DOI: 10.1016/j.bios.2020.112006] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/19/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023]
Abstract
Graphitic carbon nitride nanosheet (g-C3N4 NS) with superior photoelectronic properties was served as ECL emitter to in-situ generate Cu@Cu2O nanoparticles as coreaction accelerator for constructing neoteric ternary ECL system (g-C3N4 NS/TEA/Cu@Cu2O system). Impressively, compared to individual g-C3N4 NS, the designed Cu@Cu2O/g-C3N4 NS not only displayed an enhanced current intensity with advance onset potential, but also observed a strong ECL response, which reduced the ECL potential down to 1.3 V for beneficial construction of biosensor, owe to the significant role of Cu@Cu2O in accelerating the reaction between g-C3N4 NS and trimethylamine (TEA). Notably, the enzyme-free target induced recycle amplification was performed to produce two different kinds of single stranded DNAs labeled with ferrocene (Fc, quencher) for the formation of G-quadruplex. Herein, based on the strong ECL signal deriving from the ternary ECL system as a "switch on" mode, and a weak ECL signal due to the co-quenching pattern of ferrocene and hemin as a "switch off" mode, an original "on-off" ECL biosensing platform was developed to ultrasensitively detect microRNA-21. Furthermore, the reversible formation and dissociation of G-quadruplex could achieve the regeneration of ECL biosensor in a rapid step with the aid of potassium ion (K+) and 18-crown-6-ether. In addition, the developed strategy exhibited a great sensitivity with a detection limit of 48 aM to pave a path for real applications of biomolecules detection in clinical diagnosis.
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Affiliation(s)
- Jia-Li Liu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Jie Jiang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Jia-Qi Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Ya-Qin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China
| | - Qi Xiao
- College of Chemistry and Materials, Nanning Normal University, Nanning, 530001, PR China.
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, PR China.
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15
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He X, Wu C, Qian Y, Li Y, Zhang L, Ding F, Chen H, Shen J. Highly sensitive and selective light-up fluorescent probe for monitoring gallium and chromium ions in vitro and in vivo. Analyst 2019; 144:3807-3816. [DOI: 10.1039/c9an00625g] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Here reported an NBDT sensor could be effectively responsive to gallium and chromium for bio-imaging in vivo.
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Affiliation(s)
- Xiaojun He
- School of Ophthalmology & Optometry
- School of Biomedical Engineering
- Wenzhou Medical University
- Wenzhou
- China
| | - Chenglin Wu
- Organ Transplant Center
- The First Affiliated Hospital of Sun Yat-sen University
- Guangzhou
- China
| | - Yuna Qian
- Wenzhou Institute of Biomaterials and Engineering
- Chinese Academy of Science
- Wenzhou
- China
| | - Yahui Li
- School of Ophthalmology & Optometry
- School of Biomedical Engineering
- Wenzhou Medical University
- Wenzhou
- China
| | - Lilei Zhang
- College of Food and Drug
- Luoyang Normal University
- Luoyang
- China
| | - Feng Ding
- Department of Microbiology and Immunology
- School of Basic Medical Sciences
- Wenzhou Medical University
- Wenzhou
- China
| | - Hong Chen
- College of Food and Drug
- Luoyang Normal University
- Luoyang
- China
| | - Jianliang Shen
- School of Ophthalmology & Optometry
- School of Biomedical Engineering
- Wenzhou Medical University
- Wenzhou
- China
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