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Ranjbari F, Fathi F. Recent Advances in Chemistry, Mechanism, and Applications of Quantum Dots in Photodynamic and Photothermal Therapy. Anticancer Agents Med Chem 2024; 24:733-744. [PMID: 38409708 DOI: 10.2174/0118715206295598240215112910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 02/28/2024]
Abstract
Semiconductor quantum dots (QD) are a kind of nanoparticle with unique optical properties that have attracted a lot of attention in recent years. In this paper, the characteristics of these nanoparticles and their applications in nanophototherapy have been reviewed. Phototherapy, including photodynamic therapy (PDT) and photothermal therapy (PTT), has gained special importance because of its high accuracy and local treatment due to the activation of the drug at the tumor site. PDT is a new way of cancer treatment that is performed by activating light-sensitive compounds named photosensitizers (PS) by light. PSs cause the destruction of diseased tissue through the production of singlet oxygen. PTT is another non-invasive method that induces cell death through the conversion of near-infrared light (NIR) into heat in the tumor situation by the photothermal agent (PA). Through using energy transfer via the FRET (Förster resonance energy transfer) process, QDs provide light absorption wavelength for both methods and cover the optical weaknesses of phototherapy agents.
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Affiliation(s)
- Faride Ranjbari
- Traditional Medicine and Hydrotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farzaneh Fathi
- Biosensor Sciences and Technologies Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
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Environmental implications of nanoceramic applications. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Hallaj R, Hosseinchi Z. Surface-Modified Colloid CdTe/CdS Quantum Dots by a Biocompatible Thiazolidine Derivative as Promising Platform for Immobilization of Glucose Oxidase: Application to Fluorescence Sensing of Glucose. J Fluoresc 2021; 31:1805-1813. [PMID: 34519934 DOI: 10.1007/s10895-021-02805-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 08/17/2021] [Indexed: 11/30/2022]
Abstract
This work focuses on the synthesis of novel modified core-shell CdTe/CdS quantum dots (QDs) and develops as a fluorescence sensor for glucose determination. The (E)-2,2'-(4,4'-dioxo-2,2'-dithioxo-2H,2'H-[5,5'-bithiazolylidene]-3,3'(4H,4'H)-diyl)bis(3- mercaptopropanoic acid) (DTM) as a new derivative of thiazolidine was synthesized and characterized and used to surface-modification of CdTe/CdS QDs. DTM-capped CdTe/CdS QDs used to immobilization of glucose oxidase (GOD). The intensity fluorescence emission of the CdSe/CdS-DTM/GOD is highly sensitive to the concentration of H2O2 as a byproduct of the catalytic oxidation of glucose. The experimental results showed that the quenched fluorescence was proportional to the glucose concentration within the range of 10 nM-0.32 μM under optimized experimental conditions. The limit of detection of this system was found to be 4.3 nM. Compared with most of the existing methods, this newly developed system possesses many advantages, including simplicity, low cost, and good sensitivity.
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Affiliation(s)
- Rahman Hallaj
- Department of Chemistry, University of Kurdistan, P.O. Box 416, Sanandaj, Iran. .,Nanotechnology Research Center, University of Kurdistan, P.O. Box 416, Sanandaj, Iran.
| | - Zahra Hosseinchi
- Department of Chemistry, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
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Ansari JR, Naseh MF, Singh N, Sarkar T, Datta A. Unique photoluminescence response of MoS 2quantum dots over a wide range of As (III) in aqueous media. NANOTECHNOLOGY 2021; 32:345708. [PMID: 33962407 DOI: 10.1088/1361-6528/abfee8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
We report the solvothermal synthesis of MoS2based quantum dots (QDs) and the performance evaluation of bare QDs for the detection of aqueous As (III) oxidative state at room temperature and neutral pH over a vast range (0.1-1000 ppb). Concentration-dependent photoluminescence (PL) of the QDs enhances up to 50 ppb and then suppresses till 1000 ppb. It shows two distinctive slopes for enhancement and suppression. The enhancement is possibly due to the passivation of trap states or defects. The formation of tiny glassy As2S3particles on the QD surface may be the possible reason for suppression. The pattern of optical absorption of QDs follows the similar patterns of PL. Still, it shows an enhanced absorbance in the near UV range below ≤300 nm, which increases with As (III) concentration up to 50 ppb and then decreases following the PL pattern. The MoS2QDs were characterized by using transmission electron microscopy, x-ray diffraction, UV-Vis, and PL spectroscopy. The enhancement and suppression results were excellently fitted with the modified Stern-Volmer equation. The detection of arsenic is possible using these linear fit equations as calibration curves.
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Affiliation(s)
- Jamilur R Ansari
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi-110078, India
| | - Md Farhan Naseh
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi-110078, India
| | - Neelam Singh
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi-110078, India
| | - Tapan Sarkar
- University School of Chemical Technology, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi-110078, India
| | - Anindya Datta
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, New Delhi-110078, India
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Belal F, Mabrouk M, Hammad S, Barseem A, Ahmed H. A Novel Eplerenone Ecofriendly Fluorescent Nanosensor Based on Nitrogen and Sulfur-Carbon Quantum Dots. J Fluoresc 2021; 31:85-90. [PMID: 33074428 DOI: 10.1007/s10895-020-02638-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/14/2020] [Indexed: 12/15/2022]
Abstract
In this work, a novel ecofriendly optical nanosensor for detection of Eplerenone (EPL) in biological samples was reported. Highly luminescent water-soluble nitrogen and sulfur doped carbon quantum dots (N, S-CQDs) have been prepared successfully. The synthesis was based on the reaction of thiosemicarbazide (TS) as source of N and S and citric acid (CA) as source of carbon in one-step aqueous base reflux treatment. The produced N, S-CQDs have a small particle size in the range of 4.7 nm with a high quantum yield (58.5%) and high emission intensity at 446 nm under excitation wavelength of 370 nm. The unique properties of N, S-CQDs make them useful tool as a nano fluorescent probe for sensitive determination of EPL. EPL has been found to decrease the fluorescence of S, N-CDs significantly through static quenching according to the Stern - Volmer plot. The decreased intensity of S, N-CDs fluorescence was proportional to EPL in the 0.2-3.0 μM range. The limit of detection and quantitation were 0.05 and 0.15 μM, respectively. The assay of EPL by this approach was successfully done in drug formulations and in spiked human serum samples.
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Affiliation(s)
- Fathalla Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mokhtar Mabrouk
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sherin Hammad
- Department of pharmaceutical analytical Chemistry, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Aya Barseem
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shibin el Kom, Egypt
| | - Hytham Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shibin el Kom, Egypt.
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Nazari O, Gouran Orimi P, Chaichi MJ, Mohseni M. Synthesis and characterization of cadmium selenide quantum dots doped by europium and investigation of their chemiluminescence properties and antibacterial activities. LUMINESCENCE 2019; 34:394-401. [PMID: 30924259 DOI: 10.1002/bio.3631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 03/02/2019] [Accepted: 03/04/2019] [Indexed: 11/08/2022]
Abstract
Nanoparticles of cadmium selenide (CdSe) doped with europium, were synthesized as stabilizing agents using thioglycolic acid ligand. This method is based on the enhancing effect of CdSe quantum dots (QDs) doped with europium on chemiluminescence (CL) emission. This emission was generated by mixing CdSe QDs with manganese (II), iron (II) and chrome (II) sulfates as catalysts in the presence of hydrogen peroxide (H2 O2 ). The structural characteristics and morphology of these nanoparticles were investigated by scanning electron microscopy, Fourier transform infrared spectroscopy, ultraviolet-visible absorption spectroscopy, X-ray pattern and dynamic light scattering methods. The CdSe QDs doped with europium were used as the sensitizer in a luminol-hydrogen peroxide CL system. The sensitized CdSe QDs were analyzed for antibacterial activity against Gram-positive or Gram-negative bacteria. The results showed that the CdSe QDs are effective against all the studied bacteria, effectiveness was especially higher for Bacillus subtilis.
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Affiliation(s)
- O Nazari
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - P Gouran Orimi
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - M J Chaichi
- Department of Inorganic Chemistry, University of Mazandaran, Babolsar, Iran
| | - M Mohseni
- Department of Molecular and Cell Biology, University of Mazandaran, Babolsar, Iran
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Hsu SK, Chang ZJ, Chang SM. Fluorescent Determination of Copper(II) in Industrial Wastewater Using Thiol-Capped Cadmium Sulfide–Zinc Sulfide Quantum Dots as the Probe. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1338715] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shu-Kang Hsu
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Zhao-Jun Chang
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Sue-Min Chang
- Institute of Environmental Engineering, National Chiao Tung University, Hsinchu, Taiwan
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Uma Suganya KS, Govindaraju K, Veena Vani C, Kirubagaran R, Ashok Kumar T, Tamilselvan S, Veeramani V, Ganesh Kumar V. Nanoscale Chlorophyll-Liposome Composite (NCLC) Fluorescent Probe for In Vivo Bio-imaging. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1272-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Durán GM, Abellán C, Contento AM, Ríos Á. Discrimination of penicillamine enantiomers using β-cyclodextrin modified CdSe/ZnS quantum dots. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2074-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Azizi SN, Chaichi MJ, Shakeri P, Bekhradnia A. Quantum dots and ionic liquid-sensitized effect as an efficient and green catalyst for the sensitive determination of glucose. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:277-285. [PMID: 25819316 DOI: 10.1016/j.saa.2015.02.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 01/15/2015] [Accepted: 02/16/2015] [Indexed: 06/04/2023]
Abstract
A novel fluorescence (FL) method using water-soluble CdSe quantum dots (QDs) is proposed for the fluorometric determination of hydrogen peroxide and glucose. Water-soluble CdSe QDs were synthesized by using thioglycolic acid as stabilizer in aqueous solutions. The nanoparticles were structurally and optically characterized by X-ray powder diffraction (XRD), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), UV-Vis absorption spectroscopy, photoluminescence (PL) emission spectroscopy and transmission electron microscope (TEM). Ionic liquid-sensitized effect in aqueous solution was then investigated. In the presence of ionic liquid as catalyst, H2O2 was decomposed into radical that could quench the fluorescence of CdSe QDs more efficiently and rapidly. Then the oxidization of glucose by glucose oxidase was coupled with the fluorescence quenching of CdSe QDs by H2O2 producer with ionic liquid catalyst, which can be used to detect glucose. Therefore, a new FL analysis system was developed for the determination of glucose. Under the optimum conditions, there is a good linear relationship between the relative PL emission intensity and the concentration of glucose in the range of 5.0×10(-7)-1.0×10(-4) M of glucose with a correlation coefficient (R(2)) of 0.9973. The limit of detection of this system was found to be 1.0×10(-7) M. This method is not only simple, sensitive and low cost, but also reliable for practical applications.
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Affiliation(s)
- Seyed Naser Azizi
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran.
| | - Mohammad Javad Chaichi
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Parmis Shakeri
- Analytical Division, Faculty of Chemistry, University of Mazandaran, Babolsar 4741695447, Iran
| | - Ahmadreza Bekhradnia
- Pharmaceutical Sciences Research Center, Department of Medicinal Chemistry, Mazandaran University of Medical Sciences, Sari, Iran
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de Villiers CA, Lapsley MC, Hall EAH. A step towards mobile arsenic measurement for surface waters. Analyst 2015; 140:2644-55. [PMID: 25822044 DOI: 10.1039/c4an02368d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface modified quantum dots (QDs) are studied using a bio-inspired cysteine rich ligand (glutathione, GSH) and their quenching response and selectivity to arsenic examined. As predicted from As(3+) binding with highly crosslinked phytochelatin-(PCn)-like molecules, better arsenic selectivity is obtained for a thicker more 3-dimensional GSH surface layer, with exposed sulfhydryl groups. A detection limit of at least 10 μM can be achieved using CdSe/ZnS core-shell QDs capped with this GSH structure. The system is also demonstrated using a mobile phone camera to record the measurement, producing a detection limit of 5 μM. However, copper remains the main interferent of concern. Water-soluble CdTe QDs show little sensitivity to As(3+) even with a GSH surface, but they remain sensitive to Cu(2+), allowing a copper baseline to be established from the CdTe measurement. Despite anticipating that spectrally non overlapping fluorescence would be required from the two types of QDs to achieve this, a method is demonstrated using RGB channels from a mobile phone and processing the raw data for CdTe QDs, with an emission wavelength of 600 nm, and CdSe/ZnS QDs, with emission maximum of 630 nm. It is shown that As(3+) measurement remains feasible at the WHO guideline value of 10 μg L(-1) up to a copper concentration of around 0.3 μM Cu(2+), which corresponds to the highest recorded level in a selection of large rivers world-wide.
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Affiliation(s)
- C A de Villiers
- Institute of Biotechnology, Department of Chemical Engineering and Biotechnology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QT, UK.
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Maclin AQ, Kim MD, Dergunov SA, Pinkhassik E, Lindner E. Small-Volume pH Sensing with a Capillary Optode Utilizing Dye-Loaded Porous Nanocapsules in a Hydrogel Matrix. ELECTROANAL 2015. [DOI: 10.1002/elan.201400545] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Determination of copper in biodiesel samples using CdTe-GSH quantum dots as photoluminescence probes. Microchem J 2014. [DOI: 10.1016/j.microc.2014.06.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hosseini MS, Pirouz A. Study of fluorescence quenching of mercaptosuccinic acid-capped CdS quantum dots in the presence of some heavy metal ions and its application to Hg(II) ion determination. LUMINESCENCE 2014. [DOI: 10.1002/bio.2623] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Atena Pirouz
- Department of Chemistry; University of Birjand; Birjand Iran
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Boonchiangma S, Srijaranai S, Tuntulani T, Ngeontae W. A highly selective electrochemical sensor forl-tryptophan based on a screen-printed carbon electrode modified with poly-p-phenylenediamine and CdS quantum dots. J Appl Polym Sci 2014. [DOI: 10.1002/app.40356] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Suthasinee Boonchiangma
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Khon Kaen University; Khon Kaen 40002 Thailand
| | - Supalax Srijaranai
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Khon Kaen University; Khon Kaen 40002 Thailand
| | - Thawatchai Tuntulani
- Department of Chemistry; Faculty of Science; Chulalongkorn University; Bangkok 10330 Thailand
| | - Wittaya Ngeontae
- Materials Chemistry Research Unit, Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Khon Kaen University; Khon Kaen 40002 Thailand
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Wu P, Zhao T, Wang S, Hou X. Semicondutor quantum dots-based metal ion probes. NANOSCALE 2014; 6:43-64. [PMID: 24270674 DOI: 10.1039/c3nr04628a] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Semiconductor quantum dots (QDs) exhibit unique optical and photophysical properties that offer significant advantages over organic dyes as optical labels for chemo/bio-sensing. This review addresses the methods for metal ion detection with QDs, including photoluminescent, electrochemiluminescent, photoelectrochemical, and electrochemical approaches. The main mechanisms of direct interaction between QDs and metal ions which lead to photoluminescence being either off or on, are discussed in detail. These direct interactions provide great opportunities for developing simple yet effect metal ion probes. Different methods to design the chemically-modified QD hybrid structures through anchoring metal ion-specific groups onto the surface of QDs are summarized. Due to the spatial separation of the luminescence center and analyte recognition sites, these chemically-modified QDs offer greatly improved sensitivity and selectivity for metal ions. Several interesting applications of QD-based metal ion probes are presented, with specific emphasis on cellular probes, coding probes and sensing with logic gate operations.
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Affiliation(s)
- Peng Wu
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China.
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Molina-García L, Llorent-Martínez E, Fernández-de Córdova M, Santos J, Rodrigues S, Ruiz-Medina A. Study of the quenching effect of quinolones over CdTe-quantum dots using sequential injection analysis and multicommutation. J Pharm Biomed Anal 2013; 80:147-54. [DOI: 10.1016/j.jpba.2013.03.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 03/06/2013] [Accepted: 03/11/2013] [Indexed: 11/17/2022]
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Application of quantum dots in clinical and alimentary fields using multicommutated flow injection analysis. Talanta 2013; 109:203-8. [DOI: 10.1016/j.talanta.2013.02.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 01/29/2013] [Accepted: 02/05/2013] [Indexed: 11/23/2022]
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Fluorescent nanoparticles for intracellular sensing: A review. Anal Chim Acta 2012; 751:1-23. [DOI: 10.1016/j.aca.2012.09.025] [Citation(s) in RCA: 237] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 09/13/2012] [Accepted: 09/16/2012] [Indexed: 12/31/2022]
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Lee EM, Gwon SY, Son YA, Kim SH. Luminescence switching of CdTe quantum dots in presence of water-soluble spironaphthoxazine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 97:699-702. [PMID: 22898109 DOI: 10.1016/j.saa.2012.07.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 07/16/2012] [Accepted: 07/17/2012] [Indexed: 06/01/2023]
Abstract
The typical reaction of spironaphthoxazine is the conversion between the non-polar spiro form and polar merocyanine form. Quantum dots (QDs) have unique optical properties and several advantages over conventional organic dyes. In this work, the CdTe QDs containing a water-soluble spironaphthoxazine was used as the optical probe photoisomerization between spiro and merocyanine. The initial bright fluorescence of CdTe QDs was effectively quenched by water-soluble spironaphthoxazine using UV irradiation. Reversible modulation of fluorescence intensity of CdTe QDs was achieved using alternating irradiation with UV and visible light. The possible mechanism is discussed.
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Affiliation(s)
- Eun-Mi Lee
- BK21 FTIT Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea
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Azizi SN, Chaichi MJ, Shakeri P, Bekhradnia A. Determination of Epinephrine in Pharmaceutical Formulation by an Optimized Novel Luminescence Method Using CdS Quantum Dots as Sensitizer. J Fluoresc 2012; 23:227-35. [DOI: 10.1007/s10895-012-1138-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 10/02/2012] [Indexed: 11/30/2022]
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Photoactivation by visible light of CdTe quantum dots for inline generation of reactive oxygen species in an automated multipumping flow system. Anal Chim Acta 2012; 735:69-75. [DOI: 10.1016/j.aca.2012.05.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Revised: 05/17/2012] [Accepted: 05/18/2012] [Indexed: 11/18/2022]
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Amelia M, Lincheneau C, Silvi S, Credi A. Electrochemical properties of CdSe and CdTe quantum dots. Chem Soc Rev 2012; 41:5728-43. [DOI: 10.1039/c2cs35117j] [Citation(s) in RCA: 204] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Silvestre CI, Frigerio C, Santos JL, Lima JL. Quantum dots assisted photocatalysis for the chemiluminometric determination of chemical oxygen demand using a single interface flow system. Anal Chim Acta 2011; 699:193-7. [DOI: 10.1016/j.aca.2011.05.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Revised: 05/06/2011] [Accepted: 05/12/2011] [Indexed: 10/18/2022]
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Fortes PR, Frigerio C, Silvestre CIC, Santos JLM, Lima JLFC, Zagatto EAG. Cadmium telluride nanocrystals as luminescent sensitizers in flow analysis. Talanta 2011; 84:1314-7. [PMID: 21641444 DOI: 10.1016/j.talanta.2011.02.041] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 01/27/2011] [Accepted: 02/25/2011] [Indexed: 11/20/2022]
Abstract
A fully automated multipumping flow system (MPFS) using water-soluble CdTe quantum dots (QD) as sensitizers is proposed for the chemiluminometric determination of the anti-diabetic drugs gliclazide and glipizide in pharmaceutical formulations. The nanocrystals acted as enhancers of the weak CL emission produced upon oxidation of sulphite by Ce(IV) in acidic medium, thus improving sensitivity and expanding the dynamical analytical concentration range. By interacting with the QD, the two analytes prevented their sensitizing effect yielding a chemiluminescence quenching of the Ce(IV)-SO(3)(2-)CdTe QD system. The pulsed flow inherent to MPFS assured a fast and efficient mixing of all solutions inside the flow cell, circumventing the need for a reaction coil and facilitating the monitoring of the short-lived generated chemiluminescent species. QD crystal size, concentration and spectral region for measurement were investigated.
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Affiliation(s)
- Paula R Fortes
- Centre for Nuclear Energy in Agriculture, University of São Paulo, P.O. Box 96, Piracicaba 13400-970, Brazil
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Ruedas-Rama MJ, Orte A, Hall EAH, Alvarez-Pez JM, Talavera EM. Effect of Surface Modification on Semiconductor Nanocrystal Fluorescence Lifetime. Chemphyschem 2011; 12:919-29. [DOI: 10.1002/cphc.201000935] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2010] [Indexed: 01/26/2023]
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Method for determination of microcystin-leucine-arginine in water samples based on the quenching of the fluorescence of bioconjugates between CdSe/CdS quantum dots and microcystin-leucine-arginine antibody. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0555-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bhatt I, Tripathi BN. Interaction of engineered nanoparticles with various components of the environment and possible strategies for their risk assessment. CHEMOSPHERE 2011; 82:308-17. [PMID: 20980041 DOI: 10.1016/j.chemosphere.2010.10.011] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2010] [Revised: 10/01/2010] [Accepted: 10/03/2010] [Indexed: 05/23/2023]
Abstract
Nanoparticles are the materials with at least two dimensions between 1 and 100 nm. Mostly these nanoparticles are natural products but their tremendous commercial use has boosted the artificial synthesis of these particles (engineered nanoparticles). Accelerated production and use of these engineered nanoparticles may cause their release in the environment and facilitate the frequent interactions with biotic and abiotic components of the ecosystems. Despite remarkable commercial benefits, their presence in the nature may cause hazardous biological effects. Therefore, detail understanding of their sources, release interaction with environment, and possible risk assessment would provide a basis for safer use of engineered nanoparticles with minimal or no hazardous impact on environment. Keeping all these points in mind the present review provides updated information on various aspects, e.g. sources, different types, synthesis, interaction with environment, possible strategies for risk management of engineered nanoparticles.
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Affiliation(s)
- Indu Bhatt
- Department of Bioscience and Biotechnology, Banasthali University, Banasthali, 304 022 Rajasthan, India
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Abstract
Aptamers are DNA or RNA oligonucleotides that can bind with high affinity and specificity to a wide range of targets such as proteins, metal ions or pathogenic microorganisms. Soluble aptamers and aptazymes have been used as sensing elements for developing homogeneous assays in a solution phase, the whole sensing process being carried out in a homogeneous solution. Contrary to most conventional heterogeneous assays that are time-consuming and labor-intensive, aptamer-based homogeneous assays are simple, easy-to-perform, rapid and do not require immobilization nor washing steps. To our knowledge, this review is the first entirely dedicated to aptamer-based homogeneous assays. Optical detection appears as the most developed technique. Colorimetry represents the simplest sensing mode that occupies a very important position among aptamer-based assays, involving gold nanoparticle aggregation (with unmodified or aptamer-modified gold NPs), the formation of HRP-mimicking DNAzyme with hemin, dye displacement or interactions with a cationic polymer. Fluorescence that is highly sensitive offers the most developed detection mode. Aptamers can be labeled or not, to give rise to turn-on or usually less sensitive turn-off fluorescent assays. Newly reported and thus less developed non-conventional magnetic resonance imaging (MRI) and electrochemistry also recently appeared in the literature, thrombin still remains the main detected target. Homogeneous assays based on aptazyme, an aptamer sequence connected to a known ribozyme motif, are also described in this review, involving optical detection, by colorimetry or fluorescence.
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Affiliation(s)
- Audrey Sassolas
- CNRS, UMR 5246, ICBMS, Institut de Chimie et Biochimie Moléculaires et Supramoléculaires, Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS), Université Lyon 1, Bât CPE, 43 boulevard du 11 novembre 1918, Villeurbanne, F-69622, France
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Wang HF, Li Y, Wu YY, He Y, Yan XP. Ascorbic Acid Induced Enhancement of Room Temperature Phosphorescence of Sodium Tripolyphosphate-Capped Mn-Doped ZnS Quantum Dots: Mechanism and Bioprobe Applications. Chemistry 2010; 16:12988-94. [DOI: 10.1002/chem.201001093] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Wang X, Boschetti C, Ruedas-Rama MJ, Tunnacliffe A, Hall EAH. Ratiometric pH-dot ANSors. Analyst 2010; 135:1585-91. [PMID: 20449508 DOI: 10.1039/b922751b] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A silica based analytical nanosphere sensor (ANSor) containing quantum dots (QDs) is reported, which can measure local pH in a ratiometric fashion. A silane modified reference QD was incorporated into a silica matrix by the Stöber method hydrolysis and polycondensation of tetraethoxysilane, giving highly fluorescent QD-embedded silica particles with high yield. A further QD was then bonded onto the silica particle surface and modified with Nile Blue to render it pH responsive. These two populations of QDs were excited simultaneously and gave out well-separated emission peaks which could be taken as a ratio to yield a ratiometric estimate of pH. The sensors are stable, robust and capable of measuring pH in the physiologically relevant range.
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Affiliation(s)
- Xiaojuan Wang
- Institute of Biotechnology, Department of Chemical Engineering and Biotechnology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1QT, UK
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Idowu M, Nyokong T. Spectroscopic behavior of cationic metallophthalocyanines in the presence of anionic quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:411-416. [PMID: 19945910 DOI: 10.1016/j.saa.2009.10.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 10/14/2009] [Accepted: 10/28/2009] [Indexed: 05/28/2023]
Abstract
The interactions and spectroscopic properties between cationic zinc phthalocyanine derivatives (peripherally and non-peripherally tetrasubstituted and peripherally octa substituted with 2-diethylmethylaminoethylsulfanyl (betaTZnPc, alphaTZnPc and betaOZnPc)) and CdTe core quantum dots (QDs) capped with mercaptopropionic acid or thioglycolic acid (represented as CdTe@MPA and CdTe@TGA, respectively) have been studied in methanol:water mixture. Strong coupling of MPcs was deduced from the interaction since the UV-vis spectroscopic studies of the ground state complex formed on mixing both components showed loss of the phthalocyanine monomeric band with the formation of a dimeric band (spectrum of aggregated species). The dimerization constants were of the order of 10(4)M(-1).
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Affiliation(s)
- Mopelola Idowu
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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Frasco MF, Chaniotakis N. Semiconductor quantum dots in chemical sensors and biosensors. SENSORS 2009; 9:7266-86. [PMID: 22423206 PMCID: PMC3290488 DOI: 10.3390/s90907266] [Citation(s) in RCA: 212] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 09/03/2009] [Accepted: 09/08/2009] [Indexed: 12/05/2022]
Abstract
Quantum dots are nanometre-scale semiconductor crystals with unique optical properties that are advantageous for the development of novel chemical sensors and biosensors. The surface chemistry of luminescent quantum dots has encouraged the development of multiple probes based on linked recognition molecules such as peptides, nucleic acids or small-molecule ligands. This review overviews the design of sensitive and selective nanoprobes, ranging from the type of target molecules to the optical transduction scheme. Representative examples of quantum dot-based optical sensors from this fast-moving field have been selected and are discussed towards the most promising directions for future research.
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Affiliation(s)
- Manuela F Frasco
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Crete, Vassilika Voutes, 71003 Iraklion, Crete, Greece; E-Mail:
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Bioconjugated quantum dots as fluorescent probes for bioanalytical applications. Anal Bioanal Chem 2009; 396:229-40. [DOI: 10.1007/s00216-009-3033-0] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 07/24/2009] [Accepted: 07/30/2009] [Indexed: 10/20/2022]
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Kitaoka M, Ichinose H, Goto M. Simultaneous visual detection of single-nucleotide variations in tuna DNA using DNA/RNA chimeric probes and ribonuclease A. Anal Biochem 2009; 389:6-11. [PMID: 19318082 DOI: 10.1016/j.ab.2009.03.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2008] [Revised: 03/17/2009] [Accepted: 03/17/2009] [Indexed: 12/22/2022]
Abstract
The need for detection of single-nucleotide polymorphisms (SNPs) is rapidly increasing for molecular diagnostics, species authentication, and food traceability. In many detection technologies, fluorescence probes have the advantage of simultaneous detection of multiple analytes using multiple color fluorescence dyes. In addition, an adequate concentration of fluorescence can be observed by the naked eye. We conducted a visual ribonuclease protection assay using multicolor fluorescence probes for the simultaneous detection of multiple tuna species. The assay includes amplification of a target RNA sequence by in vitro transcription, hybridization with DNA/RNA chimeric fluorescence probes, and cleavage of mismatched RNA bases by ribonuclease A. Fragmented dye-labeled oligonucleotides were easily removed by centrifugal gel filtration. Using three fluorescent probes, fluorescence signals related to the target SNP were simply found by the visual observation of eluates. Moreover, the dual fluorescence system was used for obtaining the mixing ratio of two tuna species. This technique appeared to be convenient for detection of interest species in food products.
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Affiliation(s)
- Momoko Kitaoka
- Department of Applied Chemistry, Graduate School of Engineering, and Center for Future Chemistry, Kyushu University, 744, Moto-oka, Fukuoka 819-0395, Japan
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Terai T, Nagano T. Fluorescent probes for bioimaging applications. Curr Opin Chem Biol 2009; 12:515-21. [PMID: 18771748 DOI: 10.1016/j.cbpa.2008.08.007] [Citation(s) in RCA: 280] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Accepted: 08/06/2008] [Indexed: 11/15/2022]
Abstract
Fluorescent probes based on small organic molecules have become indispensable tools in modern biology because they provide dynamic information concerning the localization and quantity of the molecules of interest, without the need of genetic engineering of the sample. In this review, following a brief outline of the principle of fluorescence imaging, we recount some recent achievements in the field of small-molecular fluorescent probes. First, probes for metal cations, including those suitable for two-photon imaging, are introduced. Next, methodologies to visualize proteases are discussed, with special emphasis on activity-based probes for use in vivo. All these probes have been confirmed to be applicable to cellular or in vivo imaging.
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Affiliation(s)
- Takuya Terai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Investigation of some critical parameters of buffer conditions for the development of quantum dots-based optical sensors. Anal Chim Acta 2008; 630:174-80. [DOI: 10.1016/j.aca.2008.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 09/27/2008] [Accepted: 10/01/2008] [Indexed: 11/23/2022]
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38
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Spyrou NM. Radioanalytical and imaging techniques: Challenges and opportunities in biomedical applications. J Radioanal Nucl Chem 2008. [DOI: 10.1007/s10967-008-0302-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ju-Nam Y, Lead JR. Manufactured nanoparticles: an overview of their chemistry, interactions and potential environmental implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2008; 400:396-414. [PMID: 18715626 DOI: 10.1016/j.scitotenv.2008.06.042] [Citation(s) in RCA: 453] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Accepted: 06/24/2008] [Indexed: 04/14/2023]
Abstract
The industrial scale production and wide variety of applications of manufactured nanoparticles (NPs) and their possible release in considerable amounts into the natural aquatic environment have produced an increasing concern among the nanotechnology and environmental science community. In order to address this issue, it is important to understand NP chemistry, preparation, reactivity and possible mechanisms involved in their interaction with the naturally occurring aquatic components, particularly natural colloids and NPs present in the aquatic systems. In this review, an overview of the chemistry of both manufactured and natural aquatic NPs is outlined. This review discusses the physico-chemical aspects of both type of NPs as an essential point to assess possible routes involved in manufactured NP fate in the natural aquatic environment and their toxicity. Key advances related to the characterisation of the manufactured NPs and natural colloids.
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Affiliation(s)
- Yon Ju-Nam
- Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, UK
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Optical Fiber Sensing Using Quantum Dots. SENSORS 2007; 7:3489-3534. [PMID: 28903308 PMCID: PMC3841909 DOI: 10.3390/s7123489] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2007] [Accepted: 12/20/2007] [Indexed: 11/17/2022]
Abstract
Recent advances in the application of semiconductor nanocrystals, or quantumdots, as biochemical sensors are reviewed. Quantum dots have unique optical properties thatmake them promising alternatives to traditional dyes in many luminescence basedbioanalytical techniques. An overview of the more relevant progresses in the application ofquantum dots as biochemical probes is addressed. Special focus will be given toconfigurations where the sensing dots are incorporated in solid membranes and immobilizedin optical fibers or planar waveguide platforms.
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