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Wang R, Chen D, Fang L, Fan W, You Q, Bian G, Zhou Y, Gu W, Wang C, Bai L, Li J, Deng H, Liao L, Yang J, Wu Z. Atomically Precise Nanometer-Sized Pt Catalysts with an Additional Photothermy Functionality. Angew Chem Int Ed Engl 2024:e202402565. [PMID: 38588114 DOI: 10.1002/anie.202402565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Atomically precise ~1-nm Pt nanoparticles (nanoclusters, NCs) with ambient stability are important in fundamental research and exhibit diverse practical applications (catalysis, biomedicine, etc.). However, synthesizing such materials is challenging. Herein, by employing the mixture ligand protecting strategy, we successfully synthesized the largest organic-ligand-protected (~1-nm) Pt23 NCs precisely characterized with mass spectrometry and single-crystal X-ray diffraction analyses. Interestingly, natural population analysis and Bader charge calculation indicate an alternate, varying charge -layer distribution in the sandwich-like Pt23 NC kernel. Pt23 NCs can catalyze the oxygen reduction reaction under acidic conditions without requiring calcination and other treatments, and the resulting specific and mass activities without further treatment are sevenfold and eightfold higher than those observed for commercial Pt/C catalysts, respectively. Density functional theory and d-band center calculations interpret the high activity. Furthermore, Pt23 NCs exhibit a photothermal conversion efficiency of 68.4 % under 532-nm laser irradiation and can be used at least for six cycles, thus demonstrating great potential for practical applications.
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Grants
- 21925303, 21829501, 21771186, 22075290, 22075291, 22272179, 21222301, 21171170, and 21528303 Natural Science Foundation of China
- BJPY2019A02 CASHIPS Director's Fund
- MESO-23-A06 State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences
- 2020HSC-CIP005 and 2022HSC-CIP018 Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology
- 2021M703251 China Postdoctoral Science Foundation
- YZJJ-GGZX-2022-01 and YZJJ202306-TS HFIPS Director's Fund
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Affiliation(s)
- Runguo Wang
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Dong Chen
- State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Liang Fang
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Wentao Fan
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Qing You
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Guoqing Bian
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Yue Zhou
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Wanmiao Gu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Chengming Wang
- Instruments' Center for Physical Science, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Licheng Bai
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jin Li
- Tsinghua University-Peking University Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, P.R.China
| | - Haiteng Deng
- MOE Key Laboratory of Bioinformatics, School of Life Sciences, Tsinghua University, Beijing, 100084, P.R.China
| | - Lingwen Liao
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhikun Wu
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, 230031, China
- Institute of Physical Science and Information Technology, Anhui University, Hefei, 230601, P.R. China
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Li ZJ, Li C, Zheng MG, Pan JD, Zhang LM, Deng YF. Functionalized nano-graphene oxide particles for targeted fluorescence imaging and photothermy of glioma U251 cells. Int J Clin Exp Med 2015; 8:1844-1852. [PMID: 25932112 PMCID: PMC4402759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 01/21/2015] [Indexed: 06/04/2023]
Abstract
AIM This study was to prepare the functionalized nano-graphene oxide (nano-GO) particles, and observe targeted fluorescence imaging and photothermy of U251 glioma cells under near infrared (NIR) exposure. MATERIAL AND METHODS The functionalized nano-GO-Tf-FITC particles were prepared and then were incubated with U251 glioma cells. Estimation of CCK8 cell activity was adopted for measurement of cytotoxicity. The effect of fluorescein imaging was detected by fluorescence microscope with anti-CD71-FITC as a control. Finally, we detected the killing efficacy with flow cytometry after an 808 nm NIR exposure. RESULTS Both nano-GO-Tf-FITC group and CD71-FITC group exhibited green-yellow fluorescence, while the control group without the target molecule nano-GO-FITC was negative. The nano-GO-Tf-FITC was incubated with U251 cells at 0.1 mg/ml, 1.0 mg/ml, 3.0 mg/ml and 5.0 mg/ml. After 48 h of incubation, the absorbance was 0.747 ± 0.031, 0.732 ± 0.043, 0.698 ± 0.051 and 0.682 ± 0.039, while the absorbance of control group is 0.759 ± 0.052. There is no significant difference between the nano-GO-FITC groups and control group. In addition, the apoptosis and death index of nano-GO-Tf-FITC group was significantly higher than that of nano-GO-FITC and blank control group (P < 0.05). CONCLUSION The nano-GO-Tf-FITC particles with good biological compatibility and low cytotoxicity are successfully made, which have an observed effect of target imaging and photothermal therapy on glioma U251 cells.
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Affiliation(s)
- Zhong-Jun Li
- Department of Neurosurgery, The Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University Guangzhou 510120, China
| | - Chao Li
- Department of Neurosurgery, The Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University Guangzhou 510120, China
| | - Mei-Guang Zheng
- Department of Neurosurgery, The Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University Guangzhou 510120, China
| | - Jia-Dong Pan
- Polymer Chemistry Institute of Sun Yat-Sen University Guangzhou 510275, China
| | - Li-Ming Zhang
- Polymer Chemistry Institute of Sun Yat-Sen University Guangzhou 510275, China
| | - Yue-Fei Deng
- Department of Neurosurgery, The Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University Guangzhou 510120, China
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