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Liu H, Zhang Y, Xiong W, Wang X. Aggregation-induced enhancement of peroxidase-mimetic activity of DNAzyme-gold nanoparticles for ultrasensitive detection of lead ions. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:4972-4979. [PMID: 37725385 DOI: 10.1039/d3ay00399j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Lead ion (Pb2+) detection is critically important in environmental protection and health management. In this work, we developed a simple signal-enhanced colorimetric sensor for the detection of Pb2+ based on the peroxidase-mimetic property of gold nanoparticles (AuNPs). When a certain concentration of Pb2+ was added to a solution of DNAzyme-modified AuNPs, aggregation was triggered, and the result was an enhancement of the peroxidase-mimetic activity of AuNPs. Then, the chromogenic reaction of 3,3',5,5'-tetramethylbenzidine (TMB) by the catalyst of AuNPs was used for the sensitive UV-Vis and colorimetric detection of Pb2+. When a higher concentration of Pb2+ was added, the greater amount of aggregation of AuNPs resulted in the enhancement of the UV-Vis adsorption of the solution at 652 nm, with a deepening of the blue color of the solution. After optimization of the experimental conditions, a linear relationship between the absorbance of oxidized TMB at 652 nm and the logarithm of Pb2+ concentration was obtained, which had been divided into two parts (25 pM to 2.5 μM, and 2.5 μM to 250 μM). The detection limit was as low as 10 pM. The satisfactory specificity and rapid response of the sensor showed that it has promising application for the detection of Pb2+ in real samples.
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Affiliation(s)
- Haiquan Liu
- School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
| | - Yue Zhang
- School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
| | - Weiqing Xiong
- School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
| | - Xiaoyan Wang
- School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
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Lu Q, Xie L, Yin S, Chen F, Wu C, Liu M, Li H, Zhang Y. Ultrasensitive detection of microRNA-10b through target-triggered catalytic hairpin assembly and upconversion nanoparticles-based luminescence resonance energy transfer. Talanta 2023. [DOI: 10.1016/j.talanta.2022.124032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wang L, Yang W, Li L, Hu S, Yuan M, Yang Z, Han K, Wang H, Xu X. Simultaneous Observation of Visible Upconversion and Near-Infrared Downconversion in SrF 2:Nd 3+/Yb 3+/Er 3+ Nanocrystals and Their Application for Detecting Metal Ions under Dual-Wavelength Excitation. ACS OMEGA 2022; 7:27230-27238. [PMID: 35967025 PMCID: PMC9366768 DOI: 10.1021/acsomega.2c01968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
In this work, a sequence of Nd3+, Yb3+, and Er3+ tridoped SrF2 nanocrystals (NCs) is synthesized by a hydrothermal method. Both the efficient near-infrared downconversion luminescence (DCL) and visible upconversion luminescence (UCL) of the Er3+ and Nd3+ ions are simultaneously observed and systematically demonstrated under dual-wavelength excitation (808 and 980 nm continuous-wave lasers). Subsequently, the SrF2:Nd3+/Yb3+/Er3+ (15/4/0.2 mol %) NCs with the strongest luminescence were utilized for detecting the metal ion concentrations under 808 nm excitation. The results reveal that both the UCL and DCL gradually decrease as the metal ion concentrations increase, and high sensitivity is obtained for Cu2+ ions with a detection limit of 0.22 nM (∼650 nm) and 0.63 nM (∼976 nm). In addition, these SrF2:Nd3+/Yb3+/Er3+ NCs are further demonstrated to achieve a solid-state display under 980 nm excitation, exhibiting obvious "red" and "green" patterns by varying the doping rare earth ion concentrations.
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Affiliation(s)
- Linxuan Wang
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Weiqiang Yang
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- Institute
of Optics and Electronics, Chinese Academy
of Sciences, Chengdu 610209, China
- Key
Laboratory of Optical Engineering, Chinese
Academy of Sciences, Chengdu 610209, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Liang Li
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Shuai Hu
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Maohui Yuan
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Zining Yang
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
- Hunan
Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Kai Han
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
- Hunan
Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Hongyan Wang
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
- Hunan
Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology, Changsha 410073, China
| | - Xiaojun Xu
- College
of Advanced Interdisciplinary Studies, National
University of Defense Technology, Changsha 410073, China
- State
Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Changsha 410073, China
- Hunan
Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology, Changsha 410073, China
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Bağda E, Kızılyar Y, İnci ÖG, Ghaffarlou M, Barsbay M. One-pot modification of oleate-capped UCNPs with AS1411 G-quadruplex DNA in a fully aqueous medium. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Jiang C, Yang L, Li P, Liu Y, Li S, Fu Y, Ye F. A simple and rapid fluorescent approach for Pb 2+ determination and application in water samples and living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 263:120168. [PMID: 34273892 DOI: 10.1016/j.saa.2021.120168] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/20/2021] [Accepted: 07/06/2021] [Indexed: 06/13/2023]
Abstract
A novel selective fluorescent chemosensor, thiosemicarbazide-appended naphthalimide derivative (TND), has been designed and synthesized, which exhibited good selectivity and sensibility for Pb2+ in CH3CN:H2O (1:1) solution. The probe TND showed obvious color changes under UV light of 365 nm and displayed turn-on fluorescence response with Pb2+ added. The binding mode of TND with Pb2+ was found to be 1:1 based on the Job's plot analysis. The detection limit of Pb2+ was 4.7 nM, which is far below the allowable concentration determined by WHO in drinking water. Moreover, the fortified recoveries of Pb2+ were from 100.54% to 113.68% in water samples. TND is also applied for fluorescence imaging of Pb2+ in lysosomes of human stromal cell line (HSC). This study indicated that TND would be a potential sensor detecting Pb2+ in real sample.
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Affiliation(s)
- Chunyu Jiang
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China
| | - Liu Yang
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ping Li
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yulong Liu
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China
| | - Shijie Li
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ying Fu
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China.
| | - Fei Ye
- Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin, 150030, PR China.
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Xu X, Fu M, Li P, Yang M. The pH responsive upconversion fluorescence and photothermal conversion properties of NaYF 4:Yb 3+/Er 3+@NaYF 4@MnO 2@Au. Dalton Trans 2021; 50:10838-10844. [PMID: 34292284 DOI: 10.1039/d1dt01878g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
While photothermal therapy is widely applied in phototherapy, there are still challenges in developing new generation phototherapy materials with precise diagnostic functions. Here we report the construction of a pH responsive upconversion fluorescence imaging precisely guided photothermal therapy system, namely NaYF4:Yb3+/Er3+@NaYF4@MnO2@Au nanocomposites, which can effectively avoid light damage to non-target tissues. Owing to the fluorescence resonance energy transfer between the upconversion nanocrystal donor and MnO2 and Au acceptor, the upconversion fluorescence is completely quenched. However, in pH 5.3 PBS buffer, MnO2 is gradually broken down, and the upconversion fluorescence is partially recovered, which could be used for upconversion fluorescence imaging to precisely guide photothermal therapy under 980 nm excitation. Simultaneously, due to the absorption of 980 nm excitation light and the emission bands of Er3+ (2H11/2→4I15/2 and 4S3/2→4I15/2 transition), temperature increment of core@shell@MnO2@Au could reach 35.5 °C under 980 nm excitation at 0.8 W cm-2. The core@shell@MnO2@Au nanocomposites are supposed to contribute significantly in the biological applications of photoluminescence imaging and photothermal therapy.
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Affiliation(s)
- Xia Xu
- College of Science, Gansu Agricultural University, No. 1, Yingmen Village, Lanzhou 730070, P. R. China.
| | - Meirong Fu
- College of Science, Gansu Agricultural University, No. 1, Yingmen Village, Lanzhou 730070, P. R. China.
| | - Penghui Li
- College of Science, Gansu Agricultural University, No. 1, Yingmen Village, Lanzhou 730070, P. R. China.
| | - Min Yang
- College of Science, Gansu Agricultural University, No. 1, Yingmen Village, Lanzhou 730070, P. R. China.
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