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Jiang X, Li BQ, Qu X, Yang H, Shao J, Zhang H. Multilayered Dual Functional SiO 2@Au@SiO 2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6367-6378. [PMID: 30889952 DOI: 10.1021/acs.langmuir.8b04263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This paper discusses synthesis and application of dual functional SiO2@Au@SiO2@QD composite nanoparticles for integrated intracellular heating with temperature motoring. The particles are of multilayered concentric structure, consisting of Au nanoshells covered with quantum dots, with the former for infrared heating through localized surface plasma resonance while the later for temperature monitoring. The key to integrate plasmonic-heating/thermal-monitoring on a single composite nanoparticle is to ensure that the quantum dots be separated at a certain distance away from the Au shell surface in order to ensure a detectable quantum yield. Direct attachment of the quantum dots onto the Au shell would render the quantum dots practically functionless for temperature monitoring. To integrate quantum dots into Au nanoshells, a quantum quenching barrier of SiO2 was created by modifying a Stöber-like process. Materials, optical and thermal characterization was made of these composite nanoparticles. Cellular uptake of the nanoparticles was discussed. Experiments were performed on simultaneous in vitro heating and temperature monitoring in a cell internalized with the dual-functional SiO2@Au@SiO2@QD composite nanoparticles.
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Affiliation(s)
- Xinbing Jiang
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Ben Q Li
- Department of Mechanical Engineering , University of Michigan , Dearborn , Michigan 48128 , United States
| | - Xiaoli Qu
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Huan Yang
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Jinyou Shao
- State Key Laboratory for Manufacturing System Engineering , Xi'an Jiaotong University , Xi'an , Shaanxi 710049 , P.R. China
| | - Hongmei Zhang
- Department of Oncology, Xijing Hosptial , Air Force Military Medical University , Xi'an , Shaanxi 710032 , China
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Wang C, Lin H, Xu Z, Huang Y, Humphrey MG, Zhang C. Tunable Carbon-Dot-Based Dual-Emission Fluorescent Nanohybrids for Ratiometric Optical Thermometry in Living Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6621-8. [PMID: 26909643 DOI: 10.1021/acsami.5b11317] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The use of carbon-dot-based dual-emission fluorescent nanohybrids (DEFNs) as versatile nanothermometry devices for spatially resolved temperature measurements in living cells is demonstrated. The carbon dots (CDs) are prepared in the organic phase and display tunable photoluminescence (PL) across a wide visible range by adjusting the excitation wavelengths and extend of N-doping. DEFNs are formed in a straightforward fashion from CDs (emitting blue PL) and gold nanoclusters (AuNCs, emitting red PL). The DEFNs display ideal single-excitation, dual-emission with two well-resolved, intensity-comparable fluorescence peaks, and function in optical thermometry with high reliability and accuracy by exploiting the temperature sensitivity of their fluorescence intensity ratio (blue/red). Furthermore, the DEFNs have been introduced into cells, exhibiting good biocompatibility, and have facilitated physiological temperature measurements in the range of 25-45 °C; the DEFNs can therefore function as "non-contact" tools for the accurate measurement of temperature and its gradient inside a living cell.
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Affiliation(s)
- Chuanxi Wang
- China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University , Wuxi 214122, People's Republic of China
| | - Huihui Lin
- China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University , Wuxi 214122, People's Republic of China
| | - Zhenzhu Xu
- China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University , Wuxi 214122, People's Republic of China
| | - Yijun Huang
- China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University , Wuxi 214122, People's Republic of China
| | - Mark G Humphrey
- Research School of Chemistry, Australian National University , Canberra, ACT 2601, Australia
| | - Chi Zhang
- China-Australia Joint Research Centre for Functional Molecular Materials, School of Chemical & Material Engineering, Jiangnan University , Wuxi 214122, People's Republic of China
- Research School of Chemistry, Australian National University , Canberra, ACT 2601, Australia
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Tanimoto R, Hiraiwa T, Nakai Y, Shindo Y, Oka K, Hiroi N, Funahashi A. Detection of Temperature Difference in Neuronal Cells. Sci Rep 2016; 6:22071. [PMID: 26925874 PMCID: PMC4772094 DOI: 10.1038/srep22071] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 02/05/2016] [Indexed: 12/15/2022] Open
Abstract
For a better understanding of the mechanisms behind cellular functions, quantification of the heterogeneity in an organism or cells is essential. Recently, the importance of quantifying temperature has been highlighted, as it correlates with biochemical reaction rates. Several methods for detecting intracellular temperature have recently been established. Here we develop a novel method for sensing temperature in living cells based on the imaging technique of fluorescence of quantum dots. We apply the method to quantify the temperature difference in a human derived neuronal cell line, SH-SY5Y. Our results show that temperatures in the cell body and neurites are different and thus suggest that inhomogeneous heat production and dissipation happen in a cell. We estimate that heterogeneous heat dissipation results from the characteristic shape of neuronal cells, which consist of several compartments formed with different surface-volume ratios. Inhomogeneous heat production is attributable to the localization of specific organelles as the heat source.
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Affiliation(s)
- Ryuichi Tanimoto
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Takumi Hiraiwa
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Yuichiro Nakai
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Yutaka Shindo
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Kotaro Oka
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Noriko Hiroi
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
| | - Akira Funahashi
- Keio University, Department of Biosciences and Informatics, 3-14-1, Hiyoshi, Kohoku-Ward, Yokohama, 223-8522, Japan
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