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Xu H, Dai M, Fu Z. The Art of Nanoparticle Design: Unconventional Morphologies for Advancing Luminescent Technologies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2400218. [PMID: 38415814 DOI: 10.1002/smll.202400218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/16/2024] [Indexed: 02/29/2024]
Abstract
The advanced design of rare-earth-doped (RE-doped) fluoride nanoparticles has expanded their applications ranging from anticounterfeiting luminescence and contactless temperature measurement to photodynamic therapy. Several recent studies have focused on developing rare morphologies of RE-doped nanoparticles. Distinct physical morphologies of RE-doped fluoride materials set them apart from contemporary nanoparticles. Every unusual structure holds the potential to dramatically improve the physical performance of nanoparticles, resulting in a remarkable revolution and a wide range of applications. This comprehensive review serves as a guide offering insights into various uniquely structured nanoparticles, including hollow, dumbbell-shaped, and peasecod-like forms. It aims to cater to both novices and experts interested in exploring the morphological transformations of nanoparticles. Discovering new energy transfer pathways and enhancing the optical application performance have been long-term challenges for which new solutions can be found in old papers. In the future, nanoparticle morphology design is expected to involve more refined microphysical methods and chemically-induced syntheses. Targeted modification of nanoparticle morphology and the aggregation of nanoparticles of various shapes can provide the advantages of different structures and enhance the universality of nanoparticles.
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Affiliation(s)
- Hanyu Xu
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun, 130012, China
| | - Mengmeng Dai
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun, 130012, China
| | - Zuoling Fu
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun, 130012, China
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Xu D, Li C, Li W, Lin B, Lv R. Recent advances in lanthanide-doped up-conversion probes for theranostics. Front Chem 2023; 11:1036715. [PMID: 36846851 PMCID: PMC9949555 DOI: 10.3389/fchem.2023.1036715] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/31/2023] [Indexed: 02/11/2023] Open
Abstract
Up-conversion (or anti-Stokes) luminescence refers to the phenomenon whereby materials emit high energy, short-wavelength light upon excitation at longer wavelengths. Lanthanide-doped up-conversion nanoparticles (Ln-UCNPs) are widely used in biomedicine due to their excellent physical and chemical properties such as high penetration depth, low damage threshold and light conversion ability. Here, the latest developments in the synthesis and application of Ln-UCNPs are reviewed. First, methods used to synthesize Ln-UCNPs are introduced, and four strategies for enhancing up-conversion luminescence are analyzed, followed by an overview of the applications in phototherapy, bioimaging and biosensing. Finally, the challenges and future prospects of Ln-UCNPs are summarized.
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Affiliation(s)
| | | | | | - Bi Lin
- Engineering Research Center of Molecular and Neuro Imaging, Ministry of Education, School of Life Science and Technology, Xidian University, Xi’an, Shaanxi, China
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Lu Q, Abdelgawad A, Li J, Eid K. Non-Metal-Doped Porous Carbon Nitride Nanostructures for Photocatalytic Green Hydrogen Production. Int J Mol Sci 2022; 23:ijms232315129. [PMID: 36499453 PMCID: PMC9735614 DOI: 10.3390/ijms232315129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/04/2022] Open
Abstract
Photocatalytic green hydrogen (H2) production through water electrolysis is deemed as green, efficient, and renewable fuel or energy carrier due to its great energy density and zero greenhouse emissions. However, developing efficient and low-cost noble-metal-free photocatalysts remains one of the daunting challenges in low-cost H2 production. Porous graphitic carbon nitride (gCN) nanostructures have drawn broad multidisciplinary attention as metal-free photocatalysts in the arena of H2 production and other environmental remediation. This is due to their impressive catalytic/photocatalytic properties (i.e., high surface area, narrow bandgap, and visible light absorption), unique physicochemical durability, tunable electronic properties, and feasibility to synthesize in high yield from inexpensive and earth-abundant resources. The physicochemical and photocatalytic properties of porous gCNs can be easily optimized via the integration of earth-abundant heteroatoms. Although there are various reviews on porous gCN-based photocatalysts for various applications, to the best of our knowledge, there are no reviews on heteroatom-doped porous gCN nanostructures for the photocatalytic H2 evolution reaction (HER). It is essential to provide timely updates in this research area to highlight the research related to fabrication of novel gCNs for large-scale applications and address the current barriers in this field. This review emphasizes a panorama of recent advances in the rational design of heteroatom (i.e., P, O, S, N, and B)-doped porous gCN nanostructures including mono, binary, and ternary dopants for photocatalytic HERs and their optimized parameters. This is in addition to H2 energy storage, non-metal configuration, HER fundamental, mechanism, and calculations. This review is expected to inspire a new research entryway to the fabrication of porous gCN-based photocatalysts with ameliorated activity and durability for practical H2 production.
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Affiliation(s)
- Qingqing Lu
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Ahmed Abdelgawad
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha 2713, Qatar
| | - Jiaojiao Li
- Engineering & Technology Center of Electrochemistry, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Kamel Eid
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha 2713, Qatar
- Correspondence:
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Xu H, Jia M, Wang Z, Wei Y, Fu Z. Enhancing the Upconversion Luminescence and Sensitivity of Nanothermometry through Advanced Design of Dumbbell-Shaped Structured Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61506-61517. [PMID: 34910472 DOI: 10.1021/acsami.1c17900] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The core-shell engineering of lanthanide-doped nanoparticles has captured considerable attention because it can safeguard the luminescence intensity of the core by reducing surface defects. However, the limited surface area of the traditional spherical core-shell structure hinders the further breakthrough of the brightness. Herein, a unique NaYF4:Yb3+/RE3+@NaYF4:Yb3+/RE3+@NaNdF4:Yb3+ (RE3+ = Ho3+ or Er3+) dumbbell-shaped multilayer nanoparticle featuring a high surface area is reported. Its upconversion luminescence intensity is higher than that of the conventional spherical core-shell structure. A thorough investigation is performed on the luminescence and thermometric mechanisms of Ho3+/Er3+ distributed in the core and the first shell. Remarkably, when Ho3+/Er3+ ions are distributed in the first shell, the relative sensitivity of the biological luminescence nanothermometer composed of downshifting near-infrared emissions is increased to 2.543% K-1 (328 K), which considerably exceeds most reported values. The increased value is attributed to the more thermal-sensitive phonon-assisted energy transfer. For potential biological applications, dumbbell-shaped nanoparticles (DSNPs) with hydrophilic modification show excellent thermometric performance and high tissue penetration depth. Overall, the insights provided by this work will broaden the scope of novel DSNPs in the fields of luminescence and nanothermometry.
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Affiliation(s)
- Hanyu Xu
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Mochen Jia
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Zhiying Wang
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Yanling Wei
- Faculty of Applied Sciences, Jilin Engineering Normal University, Changchun 130062, China
| | - Zuoling Fu
- Coherent Light and Atomic and Molecular Spectroscopy Laboratory, Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
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A Fluorescent Sensor for Daunorubicin Determination Using 808 nm-excited Upconversion Nanoparticles. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01872-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zhang Y, Ning L, Gao D, Jia D, Gu W, Liu X. A highly sensitive upconversion nanoparticles@zeolitic imidazolate frameworks fluorescent nanoprobe for gallic acid analysis. Talanta 2021; 233:122588. [PMID: 34215078 DOI: 10.1016/j.talanta.2021.122588] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/03/2021] [Accepted: 06/05/2021] [Indexed: 02/07/2023]
Abstract
In this work, a core-shell structured upconversion nanoparticles@zeolitic imidazolate frameworks (ZIF-8) fluorescent nanoprobe (NaErF4:Tm@SiO2@ZIF-8) has been designed for the detection of gallic acid (GA). The mechanism is according to the 3, 3', 5, 5'-tetramethylbenzidine (TMB) can be oxidized to oxidized TMB (oxTMB) by Ag+. Under 980 nm laser excitation, NaErF4:Tm@SiO2@ZIF-8 can emit red light at 652 nm, which have a good overlap with the absorption spectra of oxTMB, resulting in the fluorescence quenching at 652 nm. Continually adding GA into the above solution, oxTMB will restore to TMB, and the fluorescence intensity at 652 nm gradually recovers, which can realize the detection towards GA. The linear detection range of GA is from 0 to 30 μM, and the limit of detection (LOD) of GA is 0.35 μM. The ZIF-8 can largely enhance the sensitivity of the nanoprobe, due to the physical absorption and the electrostatic attraction between ZIF-8 and the oxTMB. More importantly, this is the first time to realize the detection of GA with high sensitivity by using upconversion fluorescence. Besides, we have realized the analysis of GA in real samples, which certify the feasible of the nanoprobe in potential applications.
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Affiliation(s)
- Yuting Zhang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Liangmin Ning
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Dameng Gao
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Dandan Jia
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Wen Gu
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
| | - Xin Liu
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Collaborative Innovation Centre of Chemical Science and Engineering, Nankai University, Tianjin, 300071, China.
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Li S, Wei X, Li S, Zhu C, Wu C. Up-Conversion Luminescent Nanoparticles for Molecular Imaging, Cancer Diagnosis and Treatment. Int J Nanomedicine 2020; 15:9431-9445. [PMID: 33268986 PMCID: PMC7701150 DOI: 10.2147/ijn.s266006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/06/2020] [Indexed: 12/21/2022] Open
Abstract
In the past few years, we have witnessed great development and application potential of various up-conversion luminescent nanoparticles (UCNPs) in the nanomedicine field. Based on the unique luminescent mechanism of UCNPs and the distinguishable features of cancer biomarkers and the microenvironment, an increasing number of smart UCNPs nanoprobes have been designed and widely applied to molecular imaging, cancer diagnosis, and treatment. Considerable technological success has been achieved, but the main obstacles to oncology nanomedicine is becoming an incomplete understanding of nano-bio interactions, the challenges regarding chemistry manufacturing and controls required for clinical translation and so on. This review highlights the progress of the design principles, synthesis and surface functionalization preparation, underlying applications and challenges of UCNPs-based probes for cancer bioimaging, diagnosis and treatment that capitalize on our growing understanding of tumor biology and smart nano-devices for accelerating the commercialization of UCNPs.
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Affiliation(s)
- Shuihong Li
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Xiaodan Wei
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, People’s Republic of China
| | - Sisi Li
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Cuiming Zhu
- Institution of Pathogenic Biology, Hengyang Medical College, University of South China, Hengyang421001, Hunan, People’s Republic of China
| | - Chunhui Wu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu610054, Sichuan, People’s Republic of China
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The Recent Advances in the Mechanical Properties of Self-Standing Two-Dimensional MXene-Based Nanostructures: Deep Insights into the Supercapacitor. NANOMATERIALS 2020; 10:nano10101916. [PMID: 32992907 PMCID: PMC7599584 DOI: 10.3390/nano10101916] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023]
Abstract
MXenes have emerged as promising materials for various mechanical applications due to their outstanding physicochemical merits, multilayered structures, excellent strength, flexibility, and electrical conductivity. Despite the substantial progress achieved in the rational design of MXenes nanostructures, the tutorial reviews on the mechanical properties of self-standing MXenes were not yet reported to our knowledge. Thus, it is essential to provide timely updates of the mechanical properties of MXenes, due to the explosion of publications in this filed. In pursuit of this aim, this review is dedicated to highlighting the recent advances in the rational design of self-standing MXene with unique mechanical properties for various applications. This includes elastic properties, ideal strengths, bending rigidity, adhesion, and sliding resistance theoretically as well as experimentally supported with various representative paradigms. Meanwhile, the mechanical properties of self-standing MXenes were compared with hybrid MXenes and various 2D materials. Then, the utilization of MXenes as supercapacitors for energy storage is also discussed. This review can provide a roadmap for the scientists to tailor the mechanical properties of MXene-based materials for the new generations of energy and sensor devices.
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Abualrejal MMA, Eid K, Abdullah AM, Numan AA, Chen H, Zhang H, Wang Z. Smart design of exquisite multidimensional multilayered sand-clock-like upconversion nanostructures with ultrabright luminescence as efficient luminescence probes for bioimaging application. Mikrochim Acta 2020; 187:527. [PMID: 32860120 DOI: 10.1007/s00604-020-04521-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/18/2020] [Indexed: 02/06/2023]
Abstract
A facile scalable approach is presented for the rational design of multidimensional, multilayered sand-clock-like UCNPs (denoted as UCCKs) bounded with high index facets, with a tunable Nd3+ content, and without a template or multiple complicated reaction steps. This was achieved using the seed-mediated growth and subsequent longitudinal direction epitaxial growth with the assistance of oleic acid and NH4F. The as-formed UCCKs composed of an inner layer (NaYF4:Yb,Er,Ca), an intermediate layer (NaYF4:Yb,Ca), and an outer layer (NaNdF4:Yb,Ca). The outer shell, enriched with Nd3+ sensitizer, augmented the near-infrared (NIR) photon absorption, whereas the intermediate shell, enriched with Yb3+, acted as a bridge for energy transfer from Nd3+ to Er3+ emitter in the inner core alongside with precluding any deleterious energy back-transfer from Er3+ or quenching effect from Nd3+. These unique structural and compositional properties of UCCKs endowed the UCL intensity of UCCKs by 22 and 10 times higher than that of hexagonal UCNP core (NaYF4:Yb,Er,Ca) and hexagonal UCNP core-shell (NaYF4:Yb,Er,Ca@NaYF4:Yb,Ca), respectively. Intriguingly, the UCL intensity increased significantly with increasing the content of Nd3+ in the outer shell. The silica-coated UCCKs were used as excellent long-term luminescence probes for the in vitro bioimaging without any noteworthy cytotoxicity. The presented approach may pave the road for controlling the synthesis of multidimensional UCCKs for various applications. Graphical abstract We developed novel multidimensional multilayered sand-clock-like upconversion nanostructures composed of a spherical inner core (NaYF4:Yb,Er,Ca), hexagonal intermediate shell (NaYF4:Yb,Ca) and two up-down outer shell (NaNdF4:Yb,Ca) with controllable Nd3+ as an efficient and safe probe for bioimaging applications without any quenching effect.
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Affiliation(s)
- Murad M A Abualrejal
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China.,University of Science and Technology of China, Road Baohe District, Hefei, 230026, Anhui, People's Republic of China
| | - Kamel Eid
- Gas Processing Center (GPC), College of Engineering, Qatar University, Doha, 2713, Qatar
| | | | - Abdulqawi Ahmed Numan
- Department of Science Curricula and Teaching Methodologies, Faculty of Education, Sana'a University, Sana'a, Yemen.,Al-Janad University for Science and Technology, Sana'a, Yemen
| | - Hongda Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China.,University of Science and Technology of China, Road Baohe District, Hefei, 230026, Anhui, People's Republic of China
| | - Hua Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China.
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China. .,University of Science and Technology of China, Road Baohe District, Hefei, 230026, Anhui, People's Republic of China.
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Lin SL, Chang CA. Optimising FRET-efficiency of Nd 3+-sensitised upconversion nanocomposites by shortening the emitter-photosensitizer distance. NANOSCALE 2020; 12:8742-8749. [PMID: 32307477 DOI: 10.1039/d0nr01821j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nd3+-Sensitised luminescent upconversion nanoparticles (UCNPs) have gained interest recently as theranostics due to their near-infrared (NIR) light excitation with a better tissue penetration depth. One example is the core/shell design NaYF4:Yb,Er@Nd,Yb. When harvesting the upconversion energy in such architectures, the long emitter-photosensitizer (i.e. Er3+-PS) distances lead to inefficient Förster resonance energy transfer (FRET). Herein, we report a new nanocomposite NaYF4:Nd,Yb@Yb@Yb,Er@Y with Nd3+ ions in the core and Er3+ ions in the shell to shorten the Er-PS distance to achieve better FRET. Furthermore, an outer non-emitting protective Y3+ shell and a conducting Yb3+ shell reduced surface quenching and Er3+-to-Nd3+ energy back transfer effects, respectively. The upconversion FRET and downshifting emission efficiencies were simultaneously optimised by adjusting the thickness of the Y3+ shell, and the FRET efficiency was at least 3.7 times that of the reference NaYF4:Yb,Er@Yb@Nd,Yb@Y in a photodynamic therapy (PDT) model.
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Affiliation(s)
- Syue-Liang Lin
- Department of Biotechnology and Laboratory Science in Medicine, Department of Biomedical Imaging and Radiological Sciences, Biomedical Engineering Research and Development Center, Biophotonics & Molecular Imaging Research Center. National Yang-Ming University, Taipei 122, Taiwan.
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Peptide-enhanced tumor accumulation of upconversion nanoparticles for sensitive upconversion luminescence/magnetic resonance dual-mode bioimaging of colorectal tumors. Acta Biomater 2020; 104:167-175. [PMID: 31923719 DOI: 10.1016/j.actbio.2020.01.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 12/31/2019] [Accepted: 01/02/2020] [Indexed: 12/13/2022]
Abstract
Currently, it is still a great challenge to develop tumor targeting nanoparticles with high sensitivity and high resolution for improving the non-invasive detection ability of colorectal cancer (CRC) at an early stage. In this study, NaErF4:Yb@NaGdF4:Yb core@shell upconversion nanoparticles (UCNPs) were prepared with high upconversion luminescence (UCL) emission in red light region through adjusting the doping ratios of Er and Yb elements in the core. For biomedical applications, the carboxyl-terminated silica shell was introduced to transfer the as-prepared UCNPs from the organic phase to the aqueous phase, and allowed conjugation with peptide ligands derived from the l-SP5 peptide (i.e., l-SP5-H and l-SP5-C), respectively. Due to the tumor-targeting affinity of the PSP motif in the peptide ligands, the as-prepared peptide functionalized UCNPs (UCNP@SiO2-l-SP5-H and UCNP@SiO2-l-SP5-C) can be used as an active tumor targeting contrast agents for UCL/T1-weighted magnetic resonance (MR) dual-mode imaging. Both the in vitro and in vivo experimental results demonstrated that UCNP@SiO2-l-SP5-C has relatively high affinity for the HCT116 CRC subtype. Moreover, UCNP@SiO2-l-SP5-C can visualize ultra-small subcutaneous xenografted HCT116 tumors (c.a. 13 mm3 in volume) by in vivo UCL imaging. STATEMENT OF SIGNIFICANCE: 1. High red emission UCNPs were synthesized for tumor-targeting dual-mode bioimaging. 2. With tumor-binding affinity peptide, UCNP@SiO2-l-SP5-C shows high HCT116 tumor targeting ability. 3. UCNP@SiO2-l-SP5-C successfully achieves sensitive detection of ultrasmall HCT116 tumors.
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Wehmeier J, Haase M. nanocrystals (0 ≤ x ≤ 1): growth, size control and shell formation on β-NaCeF 4:Tb core particles. CrystEngComm 2020. [DOI: 10.1039/d0ce01301c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
is an interesting shell material for β-NaREF4 particles of the lighter lanthanides (RE = Ce, Pr, Nd), as variation of its strontium content x allows to vary its lattice parameters and match those of the core material.
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Affiliation(s)
| | - Markus Haase
- Inorganic Chemistry I
- Universität Osnabrück
- Osnabrück
- Germany
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