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Seesuea C, Sangtawesin T, Thangsunan P, Wechakorn K. Facile Green Gamma Irradiation of Water Hyacinth Derived-Fluorescent Carbon Dots Functionalized Thiol Moiety for Metal Ion Detection. J Fluoresc 2024; 34:1761-1773. [PMID: 37615896 DOI: 10.1007/s10895-023-03408-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
Fluorescent sensor-based carbon dots (CDs) have significantly developed for sensing metal ions because of their great physical and optical properties, including tunable fluorescence emission, high fluorescence quantum yield, high sensitivity, non-toxicity, and biocompatibility. In this research, a green synthetic approach via simple gamma irradiation for the carbon dot synthesis from water hyacinth was developed since water hyacinth has been classified as an invasive aquatic plant containing cellulose, hemicellulose, and lignin. The thiol moiety (SH) was further functionalized on the surface functional groups of CDs as the "turn-off" fluorescent sensor for metal ion detection. Fluorescence emission displayed a red shift from 451 to 548 nm when excited between 240 and 500 nm. The quantum yield of CDs-SH was elucidated to be 13%, with strong blue fluorescence emission under ultraviolet irridiation (365 nm), high photostability and no photobleaching. The limit of detection was determined at micromolar levels for Hg2+, Cu2+, and Fe3+. CDs-SH could be a real-time monitoring sensor for Hg2+ and Cu2+ as fluorescence quenching was observed within 2 min. Furthermore, paper test-strip based CDs-SH could be applied to detect these metal ions.
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Affiliation(s)
- Chuleekron Seesuea
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, 12110, Thailand
| | - Tanagorn Sangtawesin
- Thailand Institute of Nuclear Technology (Public Organization), Nakorn Nayok, 26120, Thailand
| | - Pattanapong Thangsunan
- Division of Biochemistry and Biochemical Innovation, Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Materials Science and Technology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Kanokorn Wechakorn
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, 12110, Thailand.
- Advanced Photochemical and Electrochemical Materials Research Unit, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, 12110, Thailand.
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Farahmandzadeh F, Molahosseini E, Portakaloo SN, Molaei M, Khanzadeh M. Efficient Gamma Ray Detection Using CdTe/CdS Core/Shell Quantum Dots: A Simple and Rapid Fluorescence Approach. J Fluoresc 2024:10.1007/s10895-024-03630-y. [PMID: 38396147 DOI: 10.1007/s10895-024-03630-y] [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: 01/09/2024] [Accepted: 02/19/2024] [Indexed: 02/25/2024]
Abstract
Gamma rays, as hazardous nuclear radiation, necessitate effective and rapid detection methods. This paper introduces a low-cost, fast, and simple fluorescence method based on CdTe/CdS core/shell quantum dots for gamma-ray detection. CdTe/CdS quantum dots, subjected to gamma irradiation from a 60Co source under various conditions, were investigated to assess their fluorescence sensor capabilities. The obtained results showed that an increase in CdTe/CdS nanoparticle size was associated with decreased sensitivity, while a reduction in CdTe/CdS concentration correlated with increased sensitivity. To further validate the practicality of CdTe/CdS core/shell quantum dots in gamma-ray detection, the structural properties of the quantum dots were meticulously studied. Raman spectroscopy, X-ray diffraction (XRD), and Fourier-transform infrared (FT-IR) analysis were conducted before and after gamma-ray radiation. The results demonstrated the crystalline stability of CdTe/CdS core/shell quantum dots under gamma irradiation, highlighting their robust structural integrity. In conclusion, the experimental findings underscore the exceptional potential of CdTe/CdS quantum dots as an off-fluorescence probe for simple, low-cost, fast, and on-site detection of gamma rays. This research contributes to the advancement of efficient and practical methods for gamma-ray sensing in various applications.
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Affiliation(s)
- Farzad Farahmandzadeh
- Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, 22 Bahman Square, Rafsanjan, Iran
| | | | - Soamyeh Naseri Portakaloo
- Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, 22 Bahman Square, Rafsanjan, Iran
| | - Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, 22 Bahman Square, Rafsanjan, Iran.
| | - Mohammad Khanzadeh
- Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, 22 Bahman Square, Rafsanjan, Iran
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Farahmandzadeh F, Molaei M, Alehdaghi H. Application of CdTe/ZnS Core/Shell Quantum Dots as on Fluorescence Sensor for Detection of Gamma Rays. J Fluoresc 2023; 33:2361-2367. [PMID: 37071231 DOI: 10.1007/s10895-023-03242-y] [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: 03/17/2023] [Accepted: 04/05/2023] [Indexed: 04/19/2023]
Abstract
Gamma rays are a type of ionizing radiation that are extremely hazardous and dangerous for humans and the environment. The fluorescence method is a simple, useful, and fast method for the detection of gamma rays. In this research, CdTe/ZnS core/shell quantum dots were used as on fluorescence sensor for the detection of gamma rays. CdTe/ZnS core/shell QDs were prepared via a simple and rapid photochemical method. The shell thickness and concentration of CdTe/ZnS core/shell quantum dots were studied as two important factors in the optical behavior of CdTe/ZnS quantum dots. The obtained results showed that the PL intensity of CdTe/ZnS QDs after gamma irradiation was increased and also a slight redshift in the PL spectrum was observed. X-ray diffractions (XRD) and Raman analyses were used to study the effect of gamma irradiation on the structural properties of CdTe/ZnS QDs. The obtained results showed that gamma irradiation couldn't damage the crystalline structure of CdTe/ZnS core/shell QDs.
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Affiliation(s)
- Farzad Farahmandzadeh
- Department of Physics, Faculty of Science, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran.
| | - Hassan Alehdaghi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
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Effects of concertation and size of aqueous QDs on the detection of ionizing radiation based on changes in optical properties. Appl Radiat Isot 2023; 196:110722. [PMID: 36989682 DOI: 10.1016/j.apradiso.2023.110722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 01/15/2023] [Accepted: 02/10/2023] [Indexed: 02/13/2023]
Abstract
Colloidal quantum dots (QDs) have recently been used in many applications. In particular, semiconductor and luminescent QDs are suitable candidate for use in optoelectronic devices and optical sensors. The optical properties of aqueous CdTe QDs with high efficiency photoluminescence (PL) make them good candidates for new dosimetry applications. Therefore, comprehensive studies are required of the effects of ionizing radiation on the optical properties of CdTe QDs. In the present study, we investigated the properties of aqueous CdTe QDs by a gamma 60Co source at different doses. For the first time, we determined the effects of the concentration and size of QDs, which are key factors in a gamma dosimeter. The results demonstrated the concentration-dependent photobleaching property of QDs, which grater changes in the optical properties occurred. The initial size of the QDs affected their optical properties, where red-shifting of PL peak position increased with smaller sizes. Analysis of the effect of gamma irradiation on the thin film QDs indicated that the PL intensity decrease as the dose increased. with increasing dose. X-ray diffraction analysis found no changes in the crystal structure. X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy indicated decomposition of the capping agent thioglycolic acid on CdTe QDs after gamma irradiation.
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Dehghan S, Molaei M, Alehdaghi H, Karimipour M. High luminescence of CdTe/CdSe/CdS core/shell/shell QDs: synthesis via a simple photochemical approach and gamma dosimetry application. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2067988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sima Dehghan
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Hassan Alehdaghi
- Department of Physics, Faculty of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Masoud Karimipour
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
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Farahmandzadeh F, Molaei M, Alehdaghi H, Karimipour M, Shamsi A. Effect of concentration and shell thickness on the optical behavior of aqueous CdTe/ZnSe core/shell quantum dots (QDs) exposed to ionizing radiation. LUMINESCENCE 2022; 37:431-439. [PMID: 34994062 DOI: 10.1002/bio.4189] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/17/2021] [Accepted: 12/26/2021] [Indexed: 12/13/2022]
Abstract
In this work CdTe/ZnSe core/shell quantum dots (QDs) were synthesized via a simple, rapid and room temperature photochemical approach. Optical properties of aqueous prepared CdTe/ZnSe QDs were studied systematically under gamma irradiation with doses range of 0 Gy to 20 kGy. The obtained results showed a regular red shift behavior versus gamma irradiation dose, in PL peak and absorption edge of the CdTe/ZnSe QDs. Structural properties of CdTe/ZnSe QDs before and after gamma irradiation were characteristic by means of XRD, Raman and FT-IR analyses. The obtained results showed that the crystalline structure of CdTe/ZnSe core/shell QDs wasn't changed after gamma irradiation. Concentration and shell thickness as two important factors on the sensitivity of CdTe/ZnSe QDs in front of gamma irradiation have been investigated. Based on this study, CdTe/ZnSe QDs suggested as a good candidate for gamma dosimeter.
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Affiliation(s)
| | - Mehdi Molaei
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Hassan Alehdaghi
- Department of physics, Faculty of Science, Hakim Sabzevari university, Sabzevar, Iran
| | - Masoud Karimipour
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
| | - Alireza Shamsi
- Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, Iran
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