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Ansari AA, Thakur VK, Chen G. Functionalized upconversion nanoparticles: New strategy towards FRET-based luminescence bio-sensing. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213821] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Sun X, Xu L, Jiang W, Xuan Y, Lu W, Li Z, Yang S, Gu Z. Adsorption mechanism of rhein-coated Fe 3O 4 as magnetic adsorbent based on low-field NMR. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:1052-1060. [PMID: 32829435 DOI: 10.1007/s11356-020-10541-5] [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: 04/16/2020] [Accepted: 08/16/2020] [Indexed: 06/11/2023]
Abstract
In the present study, a magnetic adsorbent, rhein-coated magnetic Fe3O4 nanoparticle (RMNP), for Pb2+ and Mg2+ had been developed, and adsorption mechanism was studied via low-field NMR. RMNP was characterized by TEM, FTIR, and XRD. RMNP could adsorb and remove Pb2+ and Mg2+ from water and was successfully applied to remove Pb2+ and Mg2+ from wastewater, with satisfactory recovery rates and high adsorption capacities. The calculated maximum adsorption capacity for Mg2+ and Pb2+ was approximately 69.3 and 64.9 mg g-1 of RMNP, respectively, which was better than some results reported. Low-field NMR results showed that Pb2+ or Mg2+ enhanced the T2 relaxation time of RMNP, which suggested that RMNP selectively coordinated with Pb2+ or Mg2+ and led to the aggregation of RMNP, furthermore removal of Pb2+ or Mg2+ from water. The standard curves for △T2-cation concentration exhibited good line correlation. The linear ranges were from 4.2 × 10-6 to 2.0 × 10-4 mol L-1 for Pb2+ and from 5.0 × 10-6 mol L-1 to 1.0 × 10-4 mol L-1 for Mg2+, respectively. The limits of detection were 1.4 × 10-6 mol L-1 for Pb2+ and 2.1 × 10-6 mol L-1 for Mg2+, respectively. In short, low-field NMR could clearly display the interaction between RMNP and Pb2+ or Mg2+, even be used to detect Pb2+ or Mg2+ in suitable condition. Besides, this method could be expanded to study the interaction between other magnetic adsorbents and analytes.
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Affiliation(s)
- Xu Sun
- College of Information Science and Technology, Nanjing Forestry University, Nanjing, 210037, China
| | - Li Xu
- College of Science, Nanjing Forestry University, Nanjing, 210037, China.
- Institute of Material Physics & Chemistry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Weina Jiang
- College of Chemical and Biological Engineering, Nanjing Normal University Taizhou College, Nanjing, 225300, China
| | - Yan Xuan
- Advanced Analysis and Testing Center, Nanjing Forestry University, Nanjing, 210037, China
| | - Wen Lu
- College of Science, Nanjing Forestry University, Nanjing, 210037, China
- Institute of Material Physics & Chemistry, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhong Li
- National Engineering Research Center of Biomaterials, Nanjing Forestry University, Nanjing, 210037, China
| | - Shilong Yang
- Advanced Analysis and Testing Center, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhenzhen Gu
- College of Science, Nanjing Forestry University, Nanjing, 210037, China
- Institute of Material Physics & Chemistry, Nanjing Forestry University, Nanjing, 210037, China
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Gutiérrez L, de la Cueva L, Moros M, Mazarío E, de Bernardo S, de la Fuente JM, Morales MP, Salas G. Aggregation effects on the magnetic properties of iron oxide colloids. NANOTECHNOLOGY 2019; 30:112001. [PMID: 30609414 DOI: 10.1088/1361-6528/aafbff] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Magnetic nanoparticles (MNPs), and in particular iron oxide nanoparticles (mainly magnetite and maghemite), are being widely used in the form of aqueous colloids for biomedical applications. In such colloids, nanoparticles tend to form assemblies, either aggregates, if the union is permanent, or agglomerates, if it is reversible. These clustering processes have a strong impact on the MNPs' properties that are often not well understood. In this review, the causes and consequences of MNPs aggregation/agglomeration are reviewed and discussed. Special attention has been paid to the impact of the MNPs aggregation/agglomeration on their magnetic properties and heating properties, when exposed to an alternating magnetic field in the frame of magnetic hyperthermia. In addition, a model system with MNPs of two different sizes coated with three different molecules oleic acid, meso-2, 3-dimercaptosuccinic acid and poly(maleic anhydride-alt-1-octadecene) has been characterized and the results used to support the ideas reviewed.
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Affiliation(s)
- Lucía Gutiérrez
- Departamento de Química Analítica, Instituto de Nanociencia de Aragón, Universidad de Zaragoza and CIBER-BBN, Mariano Esquillor, s/n, E-50018, Zaragoza, Spain. Instituto de Ciencia de Materiales de Aragón-CSIC/Universidad de Zaragoza and CIBER-BBN, Spain
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A magnetic relaxation switch aptasensor for the rapid detection of Pseudomonas aeruginosa using superparamagnetic nanoparticles. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2142-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zhu Y, Qiu D, Yang G, Wang M, Zhang Q, Wang P, Ming H, Zhang D, Yu Y, Zou G, Badugu R, Lakowicz JR. Selective and sensitive detection of MiRNA-21 based on gold-nanorod functionalized polydiacetylene microtube waveguide. Biosens Bioelectron 2016; 85:198-204. [PMID: 27179561 PMCID: PMC4983514 DOI: 10.1016/j.bios.2016.05.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/29/2016] [Accepted: 05/03/2016] [Indexed: 11/17/2022]
Abstract
Development of rapid, highly selective and sensitive miRNA detection in a complex biological environment has attracted considerable attention. Herein, we describe a novel two step method to construct gold-nanorod functionalized polydiacetylene (PDA) microtube for miRNA detection. In PDA microtube, with a one-dimensional (1D) waveguide nature, the excitation position and emission out-coupling position are far apart, thus helpful in reducing contribution of auto-fluorescence from biological sample. The use of specially designed toehold-mediated strand displacement reaction enables the reliable and selective discrimination of miRNA sequences with high sequence homology. Based on the condensing enrichment effect, the detection limit of the proposed PDA microtube system is as low as 0.01nM, and it can be applied directly to detect disease-specific miRNA targets in human serum. This PDA microtube waveguide system can be further integrated into the chip for the potential applications in minimally invasive, portable clinical diagnostic equipment.
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Affiliation(s)
- Yu Zhu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei, Anhui 230026 PR China
| | - Dong Qiu
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Guang Yang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei, Anhui 230026 PR China
| | - Mengqiao Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei, Anhui 230026 PR China
| | - Qijin Zhang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei, Anhui 230026 PR China
| | - Pei Wang
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Hai Ming
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Douguo Zhang
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
| | - Yue Yu
- Division of Gastroenterology, Affiliated Provincial Hospital, Anhui Medical University, No.17 Lu Jiang Road, Hefei, Anhui 230001, PR China.
| | - Gang Zou
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, iChEM, University of Science and Technology of China, Hefei, Anhui 230026 PR China.
| | - Ramachandram Badugu
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Joseph R Lakowicz
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
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Song C, Wang GY, Kong DM. A facile fluorescence method for versatile biomolecular detection based on pristine α-Fe 2 O 3 nanoparticle-induced fluorescence quenching. Biosens Bioelectron 2015; 68:239-244. [DOI: 10.1016/j.bios.2015.01.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/17/2014] [Accepted: 01/02/2015] [Indexed: 01/02/2023]
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Zheng W, Huang P, Tu D, Ma E, Zhu H, Chen X. Lanthanide-doped upconversion nano-bioprobes: electronic structures, optical properties, and biodetection. Chem Soc Rev 2015; 44:1379-415. [DOI: 10.1039/c4cs00178h] [Citation(s) in RCA: 653] [Impact Index Per Article: 72.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The latest advances in lanthanide-doped upconversion nanoparticles were comprehensively reviewed, which covers from their fundamental photophysics to biodetection.
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Affiliation(s)
- Wei Zheng
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Ping Huang
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Datao Tu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - En Ma
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Haomiao Zhu
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
| | - Xueyuan Chen
- Key Laboratory of Optoelectronic Materials Chemistry and Physics
- and Key Laboratory of Design and Assembly of Functional Nanostructures
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
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