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Sun L, Liu J, Li L, Zhen D, Dai Z, Tang S, Zhu B, Chen L, Chen H, Gong M, Tang Z, Hu Y. Advances of biosensors for UO22+ detecting based on specific DNAzyme. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bi S, Sun X, Wang Y, Wu J, Zhou H. A sensitive resonance Rayleigh light scattering method for alpinetin using gold nanorods probes. LUMINESCENCE 2018; 33:1164-1170. [PMID: 30047614 DOI: 10.1002/bio.3531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 06/07/2018] [Accepted: 06/08/2018] [Indexed: 11/11/2022]
Abstract
A sensitive resonance Rayleigh light scattering (RLS) assay for alpinetin was developed based on alpinetin-modified gold nanorods (AuNRs). Alpinetin could interact with AuNRs and formed a new assembly by electrostatic attraction. In pH 7.4 Tris-HCl buffer solution, the assembly of alpinetin-AuNRs showed a sensitive RLS signal. Under optimum conditions, the magnitude of enhanced RLS intensity (ΔIRLS ) was proportional to the concentration of alpinetin over the range 0.027-3.24 μg ml-1 , with a detection limit of 1.79 ng ml-1 (by 3σ). The developed RLS method was successfully applied to the detection of alpinetin in real or synthesized samples. Alpinetin recoveries were 90.4-108.7% with an RSD of 0.82-2.9% (n = 5) for Alpinia katsumadai samples, and 95.1-103.7% with an RSD of 0.28-3.9% (n = 5) for synthesized samples. The results showed that this new approach was convenient, reliable and sensitive.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Xiaoyue Sun
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Yu Wang
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Jun Wu
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
| | - Huifeng Zhou
- College of Chemistry, Changchun Normal University, Changchun, Peoples Republic of China
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Bandyopadhyay S, McDonagh BH, Singh G, Raghunathan K, Sandvig A, Sandvig I, Andreassen JP, Glomm WR. Growing gold nanostructures for shape-selective cellular uptake. NANOSCALE RESEARCH LETTERS 2018; 13:254. [PMID: 30155798 PMCID: PMC6113194 DOI: 10.1186/s11671-018-2662-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
With development in the synthesis of shape- and size-dependent gold (Au) nanostructures (NSs) and their applications in nanomedicine, one of the biggest challenges is to understand the interaction of these shapes with cancer cells. Herein, we study the interaction of Au NSs of five different shapes with glioblastoma-astrocytoma cells. Three different shapes (nanorods, tetrahexahedra, and bipyramids), possessing tunable optical properties, have been synthesized by a single-step seed-mediated growth approach employing binary surfactant mixtures of CTAB and a secondary surfactant. By the use of two-step seed-mediated approach, we obtained new NSs, named nanomakura (Makura is a Japanese word used for pillow) which is reported for the first time here. Spherical Au nanoparticles were prepared by the Turkevich method. To study NS-cell interactions, we functionalized the NSs using thiolated PEG followed by 11-Mercaptoundecanoic acid. The influence of shape and concentration of NSs on the cytotoxicity were assessed with a LIVE/DEAD assay in glioblastoma-astrocytoma cells. Furthermore, the time-dependent uptake of nanomakura was studied with TEM. Our results indicate that unlike the other shapes studied here, the nanomakura were taken up both via receptor-mediated endocytosis and macropinocytosis. Thus, from our library of different NSs with similar surface functionality, the shape is found to be an important parameter for cellular uptake.
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Affiliation(s)
- Sulalit Bandyopadhyay
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Birgitte H. McDonagh
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Gurvinder Singh
- Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Karthik Raghunathan
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Axel Sandvig
- Department of Neuroscience, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
- Division of Pharmacology and Clinical Neurosciences, Department of Neurosurgery, Umeå University, 901 87 Umeå, Sweden
| | - Ioanna Sandvig
- Department of Neuroscience, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
- Department of Clinical Neurosciences, University of Cambridge, England, UK
| | - Jens-Petter Andreassen
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - Wilhelm R. Glomm
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
- Polymer Particle and Surface Chemistry Research Group, SINTEF Materials and Chemistry, N-7465 Trondheim, Norway
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Wen G, Yang D, Jiang Z. A new resonance Rayleigh scattering spectral method for determination of O3 with victoria blue B. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 117:170-174. [PMID: 23988533 DOI: 10.1016/j.saa.2013.07.085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 07/05/2013] [Accepted: 07/25/2013] [Indexed: 06/02/2023]
Abstract
Ozone (O3) could be absorbed by boric acid-potassium iodide (BKI) absorbent solution to produce tri-iodine ion (I3(-)) that react with victoria blue B (VBB) to form the associated particle (VBB-I3)n and exhibited a strong resonance Rayleigh scattering (RRS) peak at 722 nm. Under the chosen conditions, the RRS peak intensity was linear with O3 concentration in the range of 0.2-50 μmol/L, with a linear regression equation of ΔI722=17.9c-45.4 and detection limit of 0.057 μmol/L. Accordingly, a simple, rapid and sensitive RRS spectral method was set up for determination of trace O3 in air, with satisfactory results.
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Affiliation(s)
- Guiqing Wen
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environment and Resource, Guangxi Normal University, Guangxi, Guilin 541004, China
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Yoo H, Jang MH. Size-controlled synthesis of gold bipyramids using an aqueous mixture of CTAC and salicylate anions as the soft template. NANOSCALE 2013; 5:6708-6712. [PMID: 23771497 DOI: 10.1039/c3nr01553j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
One-dimensional (1D) gold (Au) bipyramids are successfully synthesized through a facile seed-mediated method using cetyltrimethylammonium chloride (CTAC), Au seed nanoparticles, Ag(+) ions, and ascorbic acid. The length and optical properties of the synthesized Au bipyramids are controlled with precision by varying the amount of salicylate anions (Sal(-)) added during the synthesis. The micelles formed from CTA(+)-Sal(-) mixtures in aqueous solutions act as effective templates for the size-controlled synthesis of 1D nanocrystals.
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Affiliation(s)
- Hyojong Yoo
- Department of Chemistry, Hallym University, Gangwon-do, Chuncheon, 200-702, Republic of Korea.
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Bi S, Wang T, Zhao T, Wang Y, Pang B. Study of the interaction of salmon sperm DNA with myricitrin-CPB based on the enhanced resonance light scattering signal and its potential application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 112:397-402. [PMID: 23688588 DOI: 10.1016/j.saa.2013.04.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Revised: 03/24/2013] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
A new assay of salmon sperm DNA at nanogram level was established based on enhanced resonance light scattering (RLS) signals of DNA with myricitrin and cetylpyridinium bromide dihydrate (CPB). The RLS spectral characteristics of DNA with myricitrin-CPB and the optimum conditions for determination of DNA samples have been studied. At pH 7.4, myricitrin-CPB could enhance the intensity of RLS signal of DNA at 468 nm. The enhanced RLS intensity was directly proportional to DNA concentration in the range of 0.076-4.2 μg mL(-1) with a good linear relationship (r=0.9944). The detection limit was 4.1 ng mL(-1). The synthetic samples were analyzed with satisfactory results that the recovery was 100.9-102.6% and RSD was 1.4-2.1%, which proved that the new method was reliable and applicable.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
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Zhou B, Shi LF, Wang YS, Yang HX, Xue JH, Liu L, Wang YS, Yin JC, Wang JC. Resonance light scattering determination of uranyl based on labeled DNAzyme-gold nanoparticle system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 110:419-424. [PMID: 23583878 DOI: 10.1016/j.saa.2013.03.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 02/15/2013] [Accepted: 03/03/2013] [Indexed: 06/02/2023]
Abstract
A resonance light scattering (RLS) method has been developed using a uranyl (UO2(2+)) specific DNAzyme and gold nanoparticles (AuNPs). In this strategy, the cleavage of the substrate strand (SDNA) of DNAzyme results in releasing a shorter duplex in the presence of UO2(2+), leading to the aggregation of AuNPs and the increase of RLS intensity. The response signals linearly correlated with the concentration of UO2(2+) over the range of 1.36×10(-8)-1.50×10(-7) mol L(-1). The limit of detection (LOD) is 4.09×10(-9) mol L(-1). The method has excellent selectivity and higher sensitivity. It could provide a promising potential for the detection of metal ions, and be benefit to extend the application of RLS method.
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Affiliation(s)
- Bin Zhou
- College of Public Health, University of South China, Hengyang 421001, PR China
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Bi S, Wang Y, Wang T, Pang B, Zhao T. The analytical application and spectral investigation of DNA-CPB-emodin and sensitive determination of DNA by resonance Rayleigh light scattering technique. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 101:233-238. [PMID: 23103464 DOI: 10.1016/j.saa.2012.09.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 09/25/2012] [Accepted: 09/26/2012] [Indexed: 06/01/2023]
Abstract
A new sensitive DNA probe containing cetylpyridinium bromide (CPB) and emodin (an effective component of Chinese herbal medicine) was developed using the resonance Rayleigh light scattering (RLS) technique. A novel assay was first developed to detect DNA at nanogram level based on the ternary system of DNA-CPB-emodin. The RLS signal of DNA was enhanced remarkably in the presence of emodin-CPB, and the enhanced RLS intensity at 340.0 nm was in direct proportion to DNA concentration in the range of 0.01-2.72 μg mL(-1) with a good linear relationship. The detection limit was 1.5 ng mL(-1). Three synthetic DNA samples were measured obtaining satisfactory results, the recovery was 97.6-107.3%.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun 130032, PR China.
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Bi S, Wang Y, Pang B, Yan L, Wang T. An investigation on the interaction of DNA with hesperetin/apigenin in the presence of CTAB by resonance Rayleigh light scattering technique and its analytical application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 90:158-164. [PMID: 22336048 DOI: 10.1016/j.saa.2012.01.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 12/31/2011] [Accepted: 01/16/2012] [Indexed: 05/31/2023]
Abstract
Two new systems for measuring DNA at nanogram levels by a resonance Rayleigh light scattering (RLS) technique with a common spectrofluorometer were proposed. In the presence of cetyltrimethylammonium bromide (CTAB), the interaction of DNA with hesperetin and apigenin (two effective components of Chinese herbal medicine) could enhance RLS signals with the maximum peak at 363 and 433 nm respectively. The enhanced intensity of RLS was directly proportional to the concentration of DNA in the range of 0.022-4.4 μg mL(-1) for DNA-CTAB-hesperetin system and 0.013-4.4 μg mL(-1) for DNA-CTAB-apigenin system. The detection limit was 2.34 ng mL(-1) and 2.97 ng mL(-1) respectively. Synthetic samples were measured satisfactorily. The recovery of DNA-CTAB-hesperetin system was 97.3-101.9% and that of DNA-CTAB-apigenin system was 101.2-109.5%.
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Affiliation(s)
- Shuyun Bi
- College of Chemistry, Changchun Normal University, Changchun, PR China.
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