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Ren F, Huang H, Yang H, Xia B, Ma Z, Zhang Y, Wu F, Li C, He T, Wang Q. Tailoring Near-Infrared-IIb Fluorescence of Thulium(III) by Nanocrystal Structure Engineering. Nano Lett 2023; 23:10058-10065. [PMID: 37877757 DOI: 10.1021/acs.nanolett.3c03543] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Currently, mainstream lanthanide probes with fluorescence located in the second near-infrared subwindow of 1500-1700 nm (NIR-IIb) are predominantly Er(III)-based nanoparticles (NPs). Here we report a newly developed NIR-IIb fluorescent nanoprobe, α-Tm NP (cubic-phase NaYF4@NaYF4:Tm@NaYF4), with an emission at 1630 nm. We activate the 1630 nm emission of Tm(III) in α-Tm NP through the large spread of the Stark split sublevels induced by the crystal-field effect of the α-NaYF4 host. Further, we systematically investigated the effect of crystalline structure of the host NaYF4 NP (cubic phase (α) or hexagonal phase (β)), the type and concentrations of dopants (Yb(III), Tm(III), and Ca(II) ions) in the α-phase host, and the thicknesses of the interlayer and inert shell on the NIR-IIb fluorescence of Tm(III). The ultimate nanostructure presents a significant enhancement factor of the NIR-IIb photoluminescence intensity of Tm(III) up to ∼315. With this bright NIR-IIb fluorescent nanoprobe, we demonstrate high-spatial-resolution time-coursing imaging of breast cancer bone metastasis.
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Affiliation(s)
- Feng Ren
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Haoying Huang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Hongchao Yang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Bin Xia
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Zhiwei Ma
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yejun Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Feng Wu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Chunyan Li
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Tao He
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, Hefei University of Technology, Hefei 230009, China
| | - Qiangbin Wang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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Jayswal S, Ningthoujam RS, Moirangthem RS. Observation of Stark splitting in micro upconversion photoluminescence spectra of polycrystalline Ln 3+ doped Y 2O 3microspheres. Nanotechnology 2022; 33:335702. [PMID: 35512653 DOI: 10.1088/1361-6528/ac6cf7] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
In this study, Yb3+-Er3+-Tm3+doped Y2O3microspheres were synthesized using the solvothermal method. Structural, morphological, and elemental analysis was done using XRD, FESEM, and EDX characterization techniques. The optical properties of the samples were determined using UV-Vis-NIR spectroscopy and upconversion photoluminescence measurements. The anti-Stokes emission peaks from these polycrystalline phosphor microspheres were obtained using a commercial micro-photoluminescence setup equipped with a 976 nm laser as an excitation source at room temperature. It was compared with the emission spectra taken from a 2-3 mm spot size of 976 nm laser irradiation on the same sample. The micro-emission spectra were analyzed based on possible Stark splitting energy level transitions between the2S+1LJmanifolds of Er3+and Tm3+ions. A detailed mechanism is outlined for emission in the entire visible region under 976 nm laser excitation.
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Affiliation(s)
- Shefali Jayswal
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad-826004, Jharkhand, India
| | | | - Rakesh S Moirangthem
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad-826004, Jharkhand, India
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Mukherjee M, Saha Sardar P, Basu Roy M, Mukherjee P, Ghosh R, Ghosh S. Tracking Zone-wise perturbation during unfolding of some globular proteins using Eu(III) complex of Tetracycline as a probe exhibiting Stark splitting. Spectrochim Acta A Mol Biomol Spectrosc 2022; 264:120231. [PMID: 34365134 DOI: 10.1016/j.saa.2021.120231] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/14/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
Enhanced 'Antenna effect' of a suitably designed ternary complex of Eu(III), Tetracycline hydrochloride (TC) and globular proteins viz bovine serum albumin (BSA), human serum albumin (HSA) and β-lactoglobulin A (BLGA) in aqueous medium is employed to characterize the different partially unfolded states along with investigation of the micro- heterogeneous environment of the proteins during their stepwise unfolding. The zone-wise perturbation for the proteins upon denaturation by Urea and Guanidine hydrochloride (Gdn. HCl) is followed by the emission of Eu(III) through 'Antenna Effect' and that of the tryptophan (Trp) residues of the proteins as a function of denaturants both by steady state and time resolved emission study. With Gdn. HCl as denaturant, both BSA and BLGA show quenching of Eu(III) emission compared to pure protein while HSA exhibits an enhancement of antenna effect during unfolding as compared to that in its absence. In the presence of Urea, HSA and BSA show enhancement of antenna effect accompanied by Stark splitting of the 5D0→7F2 transition of Eu(III) although BLGA follows the similar pattern of quenching of Eu(III) emission as observed with Gdn. HCl without any Stark splitting. The proteins exhibit a two state transition with ΔGD values of ~ 2-3 kcal mol-1. Thus the use of Eu(III) emission as an efficient probe is advocating here to rationalize the microenvironment of the proteins during their stepwise unfolding.
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Affiliation(s)
- Moumita Mukherjee
- Present Address: Sri Aurobindo Vidyamandir, Chandannagar, Hoogly, West Bengal, India
| | - Pinki Saha Sardar
- Department of Chemistry, The Bhawanipur Education Society College, Kolkata-700020, West Bengal, India
| | - Maitrayee Basu Roy
- Department of Chemistry, Vidyasagar College for Women, Kolkata-700006, West Bengal, India
| | - Priyanka Mukherjee
- Department of Chemistry and Biochemistry, Asutosh College, Kolkata-700026, India
| | - Rina Ghosh
- Department of Chemistry, St. Xavier's College, Kolkata-700013, India
| | - Sanjib Ghosh
- Department of Chemistry, Adamas University, Barasat, West Bengal, India.
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Zmojda J, Kochanowicz M, Miluski P, Baranowska A, Pisarski WA, Pisarska J, Jadach R, Sitarz M, Dorosz D. Optical Characterization of Nano- and Microcrystals of EuPO₄ Created by One-Step Synthesis of Antimony-Germanate-Silicate Glass Modified by P₂O₅. Materials (Basel) 2017; 10:E1059. [PMID: 28891945 PMCID: PMC5615714 DOI: 10.3390/ma10091059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/02/2017] [Accepted: 09/05/2017] [Indexed: 12/04/2022]
Abstract
Technology of active glass-ceramics (GC) is an important part of luminescent materials engineering. The classic method to obtain GC is based on annealing of parent glass in proper temperature and different time periods. Generally, only the bulk materials are investigated as a starting host for further applications. However, the effect of an additional heat-treatment process on emission and structural properties during GC processing is omitted. Here, we focus on the possibility of obtaining transparent glass-ceramic doped with europium ions directly with a melt-quenching method. The influence of phosphate concentration (up to 10 mol %) on the inversion symmetry of local environment of Eu3+ ions in antimony-germanate-silicate (SGS) glass has been investigated. The Stark splitting of luminescence spectra and the local asymmetry ratio estimated by relation of (⁵D₀→⁷F₂)/(⁵D₀→⁷F₁) transitions in fabricated glass confirms higher local symmetry around Eu3+ ions. Based on XRD and SEM/EDX measurements, the EuPO₄ nano- and microcrystals with monoclinic geometry were determined. Therefore, in our experiment, we confirmed possibility of one-step approach to fabricate crystalline structures (glass-ceramic) in Eu-doped SGS glass without additional annealing process.
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Affiliation(s)
- Jacek Zmojda
- Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of Technology 45D Wiejska Street, 15-351 Bialystok, Poland.
| | - Marcin Kochanowicz
- Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of Technology 45D Wiejska Street, 15-351 Bialystok, Poland.
| | - Piotr Miluski
- Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of Technology 45D Wiejska Street, 15-351 Bialystok, Poland.
| | - Agata Baranowska
- Department of Power Engineering, Photonics and Lighting Technology, Bialystok University of Technology 45D Wiejska Street, 15-351 Bialystok, Poland.
| | - Wojciech A Pisarski
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland.
| | - Joanna Pisarska
- Institute of Chemistry, University of Silesia, 9 Szkolna Street, 40-007 Katowice, Poland.
| | - Renata Jadach
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland.
| | - Maciej Sitarz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland.
| | - Dominik Dorosz
- Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland.
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