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Guan X, Li Z, Geng X, Lei Z, Karakoti A, Wu T, Kumar P, Yi J, Vinu A. Emerging Trends of Carbon-Based Quantum Dots: Nanoarchitectonics and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207181. [PMID: 36693792 DOI: 10.1002/smll.202207181] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Carbon-based quantum dots (QDs) have emerged as a fascinating class of advanced materials with a unique combination of optoelectronic, biocompatible, and catalytic characteristics, apt for a plethora of applications ranging from electronic to photoelectrochemical devices. Recent research works have established carbon-based QDs for those frontline applications through improvements in materials design, processing, and device stability. This review broadly presents the recent progress in the synthesis of carbon-based QDs, including carbon QDs, graphene QDs, graphitic carbon nitride QDs and their heterostructures, as well as their salient applications. The synthesis methods of carbon-based QDs are first introduced, followed by an extensive discussion of the dependence of the device performance on the intrinsic properties and nanostructures of carbon-based QDs, aiming to present the general strategies for device designing with optimal performance. Furthermore, diverse applications of carbon-based QDs are presented, with an emphasis on the relationship between band alignment, charge transfer, and performance improvement. Among the applications discussed in this review, much focus is given to photo and electrocatalytic, energy storage and conversion, and bioapplications, which pose a grand challenge for rational materials and device designs. Finally, a summary is presented, and existing challenges and future directions are elaborated.
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Affiliation(s)
- Xinwei Guan
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052, Australia
| | - Zhixuan Li
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Xun Geng
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Zhihao Lei
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajay Karakoti
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Tom Wu
- School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052, Australia
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, 999077, P. R. China
| | - Prashant Kumar
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jiabao Yi
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ajayan Vinu
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
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Liu X, Li S, Li Z, Cao F, Su L, Shtansky DV, Fang X. Enhanced Response Speed in 2D Perovskite Oxides-Based Photodetectors for UV Imaging through Surface/Interface Carrier-Transport Modulation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:48936-48947. [PMID: 36273339 DOI: 10.1021/acsami.2c15946] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The long-time decay process induced by the persistent photoconductivity (PPC) in metal oxides-based photodetectors (PDs) impedes our demands for high-speed photodetectors. 2D perovskite oxides, emerging candidates for future high-performance PDs, also suffer from the PPC effect. Here, by integrating 2D perovskite Sr2Nb3O10 (SNO) nanosheets and nitrogen-doped graphene quantum dots (NGQDs), a unique nanoscale heterojunction is designed to modulate surface/interface carrier transport for enhanced response speed. Notably, the decay time is reduced from hundreds of seconds to a few seconds. The 4%NGQDs-SNO PD exhibits excellent performance with a photocurrent of 0.47 μA, a high on-off ratio of 2.2 × 104, and a fast pulse response speed (τdecay = 67.3 ms), making it promising for UV imaging. The trap-involved decay process plays a dominant role in determining the decay time, resulting in the PPC effect in SNO PD, and the trap states mainly originate from oxygen vacancies and chemisorbed oxygen molecules. A significantly enhanced photoresponse speed in NGQDs-SNO PDs can be ascribed to the modulated surface/interface trap states and the efficient carrier pathway provided by the nanoscale heterojunction. This work provides an effective way to enhance the response speed in 2D perovskite oxides constrained by PPC via surface/interface engineering, promoting their applications in optoelectronics.
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Affiliation(s)
- Xinya Liu
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai200433, P. R. China
| | - Siyuan Li
- Department of Chemistry, City University of Hong Kong, Hong Kong999077, P. R. China
| | - Ziqing Li
- Institute of Optoelectronics, Fudan University, Shanghai200433, P. R. China
| | - Fa Cao
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai200433, P. R. China
| | - Li Su
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai200433, P. R. China
| | - Dmitry V Shtansky
- National University of Science and Technology "MISIS", Leninsky Prospect 4, Moscow119049, Russia
| | - Xiaosheng Fang
- Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai200433, P. R. 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: 6] [Impact Index Per Article: 3.0] [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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Zuo X, Chen S, Wang T, Zhang S, Li T. Leaching risks of antibiotic resistance genes in urban underlying surface sediments during the simulated stormwater runoff and its controls. WATER RESEARCH 2022; 221:118735. [PMID: 35714468 DOI: 10.1016/j.watres.2022.118735] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/16/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Recently, increasing attention has been paid to antibiotic resistance genes (ARGs) in urban stormwater runoff. However, no available literature could be found on ARGs leaching from urban underlying surface sediments during stormwater runoff. In this study, surface sediments from commercial public squares around Nanjing (China) was selected for the investigation of target ARGs leaching kinetics, showing that absolute abundances of target ARGs desorption reached at the equilibrium during leaching time of 120-240min with all of the desorption efficiencies about 30%, indicating that there would be low proportion of leaching ARGs in the total ARGs migrating with runoff during rainfall events. Five target ARGs leaching including intI1 (clinic), strA, strB, tetM and tetX can be better described by the pseudo-second-order equation, while qacEdelta1 leaching can be better described by the pseudo-first-order equation, and the leaching for both sul1 and sul2 can be well described by the pseudo-first-order and pseudo-second-order equations. The effects of environmental factors including S/L ratios, pH values and water temperatures indicated that leaching efficiencies of target ARGs enhanced significantly with the increase of S/L ratios and water temperatures, but decreased with the increase of pH values. The transmission experiments after the simulated solar irradiation and heat implied that both large solar UV irradiation (30W/m2) and high temperature (40℃) were conducive to conjugation and transformation frequencies of ARGs. Furthermore, both high Cao and medium PAM levels could be effective for blocking ARGs transmission in the leachate from underlying surface sediments.
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Affiliation(s)
- XiaoJun Zuo
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China.
| | - ShaoJie Chen
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
| | - Tao Wang
- School of Environment Engineering, Wuxi University, Wuxi 214105, China
| | - SongHu Zhang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
| | - Ting Li
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Joint Laboratory of Atmospheric Pollution Control, Nanjing, 210044, China
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Pareek S, Rout V, Jain U, Bharadwaj M, Chauhan N. Nitrogen-Doped Carbon Dots for Selective and Rapid Gene Detection of Human Papillomavirus Causing Cervical Cancer. ACS OMEGA 2021; 6:31037-31045. [PMID: 34841146 PMCID: PMC8613818 DOI: 10.1021/acsomega.1c03919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
According to WHO, cervical cancer is considered as one of the most frequently diagnosed cancers and the fourth main source of cancer death in women in 2020 worldwide. Hence, there is a need for development of cervical cancer screening with new rapid and cost-effective methods. Although there are few methods available for HPV identification, these techniques are less sensitive, time-consuming, and costly. An ultra-sensitive, selective, and label-free DNA-based impedimetric electrochemical genosensor is developed in this study to detect HPV-18 for cervical cancer. Electrochemical analysis was performed for the characterization of the sensing platform and for the detection of analyte. A single-stranded 25mer oligonucleotide DNA probe was immobilized onto a nitrogen-doped carbon nanodot-modified ITO electrode. Furthermore, the hybridization event was measured by testing the complementary single stranded DNA sequence in the samples. The sensor could distinguish between complementary as well as non-complementary sequences. Herein, impedance quantification demonstrated a limit of detection of 0.405 fM. The developed genosensor showed high selectivity toward HPV-18 in the clinical samples. This sensing platform can be considered as a rapid and selective method for the screening of HPV-18.
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Affiliation(s)
- Sakshi Pareek
- Amity
Institute of Nanotechnology, Amity University
Uttar Pradesh, Noida 201313, India
| | - Vishwadeep Rout
- Amity
Institute of Biotechnology, Amity University
Uttar Pradesh, Noida 201313, India
| | - Utkarsh Jain
- Amity
Institute of Nanotechnology, Amity University
Uttar Pradesh, Noida 201313, India
| | - Mausumi Bharadwaj
- National
Institute of Cancer Prevention and Research, Indian Council of Medical Research (ICMR), Noida 201301, India
| | - Nidhi Chauhan
- Amity
Institute of Nanotechnology, Amity University
Uttar Pradesh, Noida 201313, India
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Calabrese G, De Luca G, Nocito G, Rizzo MG, Lombardo SP, Chisari G, Forte S, Sciuto EL, Conoci S. Carbon Dots: An Innovative Tool for Drug Delivery in Brain Tumors. Int J Mol Sci 2021; 22:11783. [PMID: 34769212 PMCID: PMC8583729 DOI: 10.3390/ijms222111783] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 01/16/2023] Open
Abstract
Brain tumors are particularly aggressive and represent a significant cause of morbidity and mortality in adults and children, affecting the global population and being responsible for 2.6% of all cancer deaths (as well as 30% of those in children and 20% in young adults). The blood-brain barrier (BBB) excludes almost 100% of the drugs targeting brain neoplasms, representing one of the most significant challenges to current brain cancer therapy. In the last decades, carbon dots have increasingly played the role of drug delivery systems with theranostic applications against cancer, thanks to their bright photoluminescence, solubility in bodily fluids, chemical stability, and biocompatibility. After a summary outlining brain tumors and the current drug delivery strategies devised in their therapeutic management, this review explores the most recent literature about the advances and open challenges in the employment of carbon dots as both diagnostic and therapeutic agents in the treatment of brain cancers, together with the strategies devised to allow them to cross the BBB effectively.
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Affiliation(s)
- Giovanna Calabrese
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali—Università degli Studi di Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98168 Messina, Italy; (G.N.); (M.G.R.); (S.C.)
| | - Giovanna De Luca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali—Università degli Studi di Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98168 Messina, Italy; (G.N.); (M.G.R.); (S.C.)
| | - Giuseppe Nocito
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali—Università degli Studi di Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98168 Messina, Italy; (G.N.); (M.G.R.); (S.C.)
| | - Maria Giovanna Rizzo
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali—Università degli Studi di Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98168 Messina, Italy; (G.N.); (M.G.R.); (S.C.)
| | - Sofia Paola Lombardo
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy; (S.P.L.); (G.C.)
| | - Giulia Chisari
- Istituto Oncologico del Mediterraneo, Via Penninazzo 7, 95029 Viagrande, Italy; (S.P.L.); (G.C.)
| | - Stefano Forte
- IOM Ricerca, Via Penninazzo 11, 95029 Viagrande, Italy;
| | - Emanuele Luigi Sciuto
- A.O.-Universitaria Policlinico “G. Rodolico–San Marco”, Via Santa Sofia 78, 95123 Catania, Italy;
| | - Sabrina Conoci
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali—Università degli Studi di Messina, Viale Ferdinando Stagno d’Alcontres, 31, 98168 Messina, Italy; (G.N.); (M.G.R.); (S.C.)
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Hao X, Huang L, Zhao C, Chen S, Lin W, Lin Y, Zhang L, Sun A, Miao C, Lin X, Chen M, Weng S. Antibacterial activity of positively charged carbon quantum dots without detectable resistance for wound healing with mixed bacteria infection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111971. [PMID: 33812599 DOI: 10.1016/j.msec.2021.111971] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/30/2021] [Accepted: 02/10/2021] [Indexed: 12/22/2022]
Abstract
Widespread bacterial infection and the spread of antibiotic resistance exhibit increasing threat to the public and thus require new antibacterial strategies. Carbon quantum dots (CQDs) have been extensively investigated to play fluorescent, catalytic roles and even potential biomedical functions containing sterilization. However, synthetic understanding of the interaction of CQDs and bacteria, the exhibition of antibacterial ability, and the risk of resistance evolution remain lacking. Herein, a simple one-pot method was fabricated to prepare positively charged CQDs (PC-CQDs) as a broad-spectrum antibacterial agent. PC-CQDs possessed effective antibacterial activity against all tested Gram-positive, Gram-negative, and drug-resistant bacteria. Investigation of the antibacterial mechanism of PC-CQDs indicated that small-sized PC-CQDs functionalized with -NH2 and -NH induced strong adherence behavior on the bacterial cell membrane. Moreover, the entry of PC-CQDs caused conformational changes in the genes and generation of reactive oxygen species in the bacteria. Safety evaluation illustrated that PC-CQDs did not trigger detectable drug resistance or hemolysis. Furthermore, PC-CQDs effectively promoted the antibacterial treatment of mixed Staphylococcus aureus and Escherichia coli infected wound in rats with low in vivo toxicity. These results suggested that PC-CQDs are a potential antibacterial candidate for real wound healing applications in complex bacterial infections and even resistant bacteria-caused infections.
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Affiliation(s)
- Xiaoli Hao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Lingling Huang
- Department of Stomatology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, China
| | - Chengfei Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Sining Chen
- School of Clinical Medicine, Fujian Medical University, Fuzhou, 350004, China
| | - Wanjing Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Yinning Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Lirong Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - An'an Sun
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Chenfang Miao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Min Chen
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, China.
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
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Zheng Y, Chen J, Li Y, Xu Y, Chen L, Chen W, Liu A, Lin X, Weng S. Dual-probe fluorescent biosensor based on T7 exonuclease-assisted target recycling amplification for simultaneous sensitive detection of microRNA-21 and microRNA-155. Anal Bioanal Chem 2021; 413:1605-1614. [PMID: 33515273 DOI: 10.1007/s00216-020-03121-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/25/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022]
Abstract
Effective and simultaneous monitoring of the abnormal expression of certain microRNAs (miRNAs), especially for miRNA-21 and miRNA-155, can indicate drug resistance in lung cancer. In this work, T7 exonuclease (T7 Exo)-assisted target recycling amplification coupled with the extensive fluorescence quenching of graphene oxide (GO) was designed for the simultaneous detection of miRNA-21 and miRNA-155 using FAM- and ROX-labeled single-strand DNA probes. Through this method, the variable emission intensities of FAM and ROX caused by the introduction of miRNA-21 and miRNA-155, respectively, were obtained with high sensitivity. The method exhibited excellent analytical performance for simultaneous detection of miRNA-21 and miRNA-155 without cross-interference. The linear range was from 0.005 nM to 5 nM over three orders of magnitude, with detection limits as low as 3.2 pM and 4.5 pM for miRNA-21 and miRNA-155, respectively. Furthermore, the recovery (92.49-103.67%) and relative standard deviation (RSD < 4.8%) of the standard addition test of miRNA-21 and miRNA-155 in human plasma suggested the potential for drug resistance warning in clinical practice via this simple strategy. A homogeneous T7 Exo-assisted signal amplification combined with GO quenching platform was developed for accurate, sensitive and simultaneous analysis of miRNA-21 and miRNA-155 for drug resistance warning in lung cancer. This simple method exhibited a wide linear range and low LODs for miR-21 and miR-155.
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Affiliation(s)
- Yanjie Zheng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Jinyuan Chen
- The Central lab, the First Affiliated Hospital of Fujian Medical University, Fuzhou, 350005, Fujian, China
| | - You Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
- Department of Pharmacy, Fuzhou Pulmonary Hospital of Fujian, Fuzhou, 350008, Fujian, China
| | - Yichun Xu
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Li Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Wei Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
- Nano Biomedical Technology Research Center, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Ailin Liu
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China
- Nano Biomedical Technology Research Center, Fujian Medical University, Fuzhou, 350122, Fujian, China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China.
- Nano Biomedical Technology Research Center, Fujian Medical University, Fuzhou, 350122, Fujian, China.
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, Fujian, China.
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9
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Integration of fluorescent polydopamine nanoparticles on protamine for simple and sensitive trypsin assay. Anal Chim Acta 2021; 1148:338201. [PMID: 33516383 DOI: 10.1016/j.aca.2021.338201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/03/2021] [Accepted: 01/05/2021] [Indexed: 12/21/2022]
Abstract
As an important protease, trypsin (TRY) has been identified as a key indicator of various diseases. A simple and sensitive strategy for TRY detection by using an environment-friendly biosafe probe is significant. Herein, we introduced negatively charged fluorescent polydopamine nanoparticles (PDNPs) with 4.8 nm diameter obtained through a controllable method as an effective probe for TRY. PDNPs exhibited excellent fluorescence property but integrated with protamine (Pro) to form an aggregation-caused quenching system via a static quenching mechanism. The quenching mechanism of Pro to PDNPs revealed the significant effect of the surface charge, functional groups, and appropriate size of PDNPs on quenching process. Given the specific hydrolysis of Pro by TRY, PDNPs were released from the quenching integration of PDNPs and Pro (PDNPs-Pro) and recovered their fluorescence. Thus, a fluorescence sensor for TRY with a linear range of 0.01 and 0.1 μg/mL and a detection limit of 6.7 ng/mL was developed without the disturbing from other proteases. Compared with other TRY assays, the biosensor based on PDNPs-Pro has the advantages of simple operation, environmental friendliness, and high sensitivity. This specific controlled-synthesis PDNPs would open up a new window for the extended application of fluorescent nanomaterials in biomedicine based on fluorescence changes induced by biological interaction.
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Interfacing DNA with nanoparticles: Surface science and its applications in biosensing. Int J Biol Macromol 2020; 151:757-780. [DOI: 10.1016/j.ijbiomac.2020.02.217] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 12/17/2022]
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11
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Xiao J, Hao X, Miao C, Li F, Huang J, Lin X, Chen M, Wu X, Weng S. Determination of chondroitin sulfate in synovial fluid and drug by ratiometric fluorescence strategy based on carbon dots quenched FAM-labeled ssDNA. Colloids Surf B Biointerfaces 2020; 192:111030. [PMID: 32353709 DOI: 10.1016/j.colsurfb.2020.111030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/31/2020] [Accepted: 04/07/2020] [Indexed: 12/19/2022]
Abstract
Chondroitin sulfate (CS) plays an increasingly important role in clinical settings and pharmacy quality control. However, sensitive and simple methods for CS detection remain limited. In this work, positively charged nitrogen doped carbon dots (P-NCDs) with internal luminescence and quenching property to FAM-labeled random-sequence ssDNA (F-ssDNA) were prepared by a simple heating method. P-NCDs attached and quenched F-ssDNA through electrostatic interaction to form the system of P-NCDs and F-ssDNA (P-NCDs/F-ssDNA) with retained fluorescence intensity of P-NCDs. The highly negatively charged CS reacted electrostatically with P-NCDs and then replaced F-ssDNA in P-NCDs/F-ssDNA to recover the fluorescence intensity of the original quenched F-ssDNA while retaining the internal fluorescence intensity of P-NCDs. Thus, by using restored F-ssDNA as the signal controlled by adding CS to P-NCDs/F-ssDNA, a ratiometric fluorescence strategy based on the retained fluorescence of P-NCDs as reference signal was fabricated through synchronous fluorescence spectrometry for the sensitive detection of CS. Under the optimal experimental conditions, a linear equation for CS was obtained for CS concentration within the range of 0.05-2.0 μg/mL. The method was also successfully applied for the accurate determination of CS in joint fluid samples of arthritic patients, chondroitin sulfate tablets, and chondroitin sulfate eye drops, suggesting its appreciable application potential in the clinic.
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Affiliation(s)
- Jiecheng Xiao
- Department of Orthopedic Surgery, the Affiliated Hospital of Putian University, Putian 351100, China
| | - Xiaoli Hao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Chenfang Miao
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Fenglan Li
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Jianyong Huang
- Department of Pharmaceutical, Fujian Medical University Union Hospital, Fuzhou 350001, China.
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
| | - Min Chen
- Department of Orthopedic Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China.
| | - Xianwei Wu
- Department of Orthopedic Surgery, the Affiliated Hospital of Putian University, Putian 351100, China.
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China
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12
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Wang Z, Xue Z, Hao X, Miao C, Zhang J, Zheng Y, Zheng Z, Lin X, Weng S. Ratiometric fluorescence sensor based on carbon dots as internal reference signal and T7 exonuclease-assisted signal amplification strategy for microRNA-21 detection. Anal Chim Acta 2020; 1103:212-219. [DOI: 10.1016/j.aca.2019.12.068] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 12/19/2019] [Accepted: 12/25/2019] [Indexed: 12/20/2022]
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13
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Chen Y, Lin Z, Miao C, Cai Q, Li F, Zheng Z, Lin X, Zheng Y, Weng S. A simple fluorescence assay for trypsin through a protamine-induced carbon quantum dot-quenching aggregation platform. RSC Adv 2020; 10:26765-26770. [PMID: 35515765 PMCID: PMC9055544 DOI: 10.1039/d0ra03970e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 06/26/2020] [Indexed: 12/25/2022] Open
Abstract
The development of a simple detection strategy for trypsin (Try) is urgent, and is ascribed to the diagnostic value of Try in several diseases. Herein, a facile but effective fluorescence strategy for Try was developed based on the protamine (Pro)-induced aggregation of carbon quantum dots (CQDs). The fluorescence of negatively charged CQDs was quenched with Pro due to the assembly of CQDs and Pro (CQDs/Pro) through electrostatic interaction. However, the highly positively charged Pro, which is rich in basic arginine residues, was preferred to be hydrolyzed by Try. Try can induce the deaggregation of CQDs/Pro, thereby enabling the release of CQDs to restore the fluorescence intensity. Thus, the use of CQDs/Pro as a testing platform will be employed as a “turn-on” method for Try. In addition, the fluorescence-resuming response was proportional to Try, ranging from 25 ng mL−1 to 500 ng mL−1 with a limit of detection (LOD) of 8.08 ng mL−1. This “turn-on” fluorescence assay for Try was label-free, convenient, and relatively free of interference from coexisting substances. Actual applications for Try monitoring and trypsin inhibitor screening also illustrated the considerable prospect of CQDs in the clinical field, combined with the superiority of the simple mixing operation. In this work, a simple melting method was developed for carbon quantum dot fabrication to integrate with protamine as an effective signal-on fluorescence strategy for trypsin detection.![]()
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Affiliation(s)
- Yiping Chen
- Department of Interventional Radiology
- The First Affiliated Hospital of Fujian Medical University
- Fuzhou
- China
| | - Zuan Lin
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | - Chenfang Miao
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | - Qianqian Cai
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | - Fenglan Li
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | | | - Xinhua Lin
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | - Yanjie Zheng
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis
- School of Pharmacy
- The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province
- Fujian Medical University
- Fuzhou 350122
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14
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Zhang J, Chen Y, Zheng Z, Wang Z, Zheng Y, Lin X, Weng S. Fluorescence sensing of tyrosinase activity based on amine rich carbon dots through direct interaction in a homogeneous system: detection mechanism and application. RSC Adv 2019; 9:20029-20034. [PMID: 35514717 PMCID: PMC9065479 DOI: 10.1039/c9ra03098k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 06/12/2019] [Indexed: 12/20/2022] Open
Abstract
As a vital, copper-containing oxidase, tyrosinase (TYR) is useful as a biomarker for the screening of skin diseases. In this paper, a convenient and sensitive homogeneous fluorescence detection platform for the assay of TYR activity without any modified steps is described. Inspired by the fact that carbon dots (CDs) with excellent properties can be obtained through some surface modification, amine rich carbon dots (N-CDs) using a nitrogen doping process were developed as the fluorescent probe for this assay. The effect and the response mechanism of the degree of nitrogen doping in relation to the response of different CDs to the sensing of TYR activity using dopamine (DA) as a substrate were investigated. The DA was oxidized to o-dopaquinone with the catalyzation of TYR and quenched the fluorescence of the N-CDs by direct interaction. By using a set concentration of DA and other optimized reaction conditions, the fluorescence intensity of the N-CDs was directly applied to monitor the TYR activity. This assay for TYR activity showed a broad linear range from 0.05 to 6.0 U mL-1 with a detection limit of 0.039 U mL-1. The satisfactory recovery of the sensor for TYR activity in diluted human serum illustrated a potential clinical application.
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Affiliation(s)
- Jianzhong Zhang
- Department of Gastric Surgery, Fujian Medical University Union Hospital Fuzhou 350001 China
| | - Yuyuan Chen
- Department of Pharmaceutical Analysis, The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University Fuzhou 350122 China
| | | | - Zhenzhen Wang
- Department of Pharmaceutical Analysis, The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University Fuzhou 350122 China
| | - Yanjie Zheng
- Department of Pharmaceutical Analysis, The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University Fuzhou 350122 China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University Fuzhou 350122 China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, The Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, School of Pharmacy, Fujian Medical University Fuzhou 350122 China
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