Determining the 3D orientation of optically trapped upconverting nanorods by <i>in situ</i> single-particle polarized spectroscopy

Rodríguez‐Sevilla, Paloma; Labrador‐Páez, Lucía; Wawrzyńczyk, Dominika; Nyk, Marcin; Samoć, Marek; Kar, A. K.; Mackenzie, Mark D.; Paterson, Lynn; Jaque, Daniel; Haro‐González, P.

doi:10.1039/c5nr06419h

Cited by 57 publications

(55 citation statements)

References 52 publications

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“…Optical tweezer/trapping serves as a proactive option to selectively capture one or more nanoparticles from a colloidal suspension with time dependence ( Figure ) . A tightly focused laser beam in the optical tweezer system traps the particle in the optical potential well.…”

Section: Nanoparticles For Microscopic Detectionmentioning

confidence: 99%

Impact of Lanthanide Nanomaterials on Photonic Devices and Smart Applications

Zhou

Leaño

Liu³

et al. 2018

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145

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Half a century after its initial emergence, lanthanide photonics is facing a profound remodeling induced by the upsurge of nanomaterials. Lanthanide-doped nanomaterials hold promise for bioapplications and photonic devices because they ally the unmatched advantages of lanthanide photophysical properties with those arising from large surface-to-volume ratios and quantum confinement that are typical of nanoobjects. Cutting-edge technologies and devices have recently arisen from this association and are in turn promoting nanophotonic materials as essential tools for a deeper understanding of biological mechanisms and related medical diagnosis and therapy, and as crucial building blocks for next-generation photonic devices. Here, the recent progress in the development of nanomaterials, nanotechnologies, and nanodevices for clinical uses and commercial exploitation is reviewed. The candidate nanomaterials with mature synthesis protocols and compelling optical uniqueness are surveyed. The specific fields that are directly driven by lanthanide doped nanomaterials are emphasized, spanning from in vivo imaging and theranostics, micro-/nanoscopic techniques, point-of-care medical testing, forensic fingerprints detection, to micro-LED devices.

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Section: Nanoparticles For Microscopic Detectionmentioning

confidence: 99%

Impact of Lanthanide Nanomaterials on Photonic Devices and Smart Applications

Zhou

Leaño

Liu³

et al. 2018

Small

145

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“…

Lanthanide-doped upconversion nanoparticles (UCNPs) have significant applications for single-molecule probes and high-resolution display. [11] Unfortunately, a major obstacle for practical application of UCNPs at single particle level is still their weak luminescence. Here, 484-fold luminescence enhancement in LuF 3 :Yb 3+ , Er 3+ rhombic flake UCNPs is achieved, thanks to the Yb 3+ -mediated local photothermal effect, and their original morphology, size, and good dispersibility are well preserved.

…”

mentioning

confidence: 99%

Atomic‐Level Passivation of Individual Upconversion Nanocrystal for Single Particle Microscopic Imaging

Min

Jing

Guo

et al. 2019

Adv Funct Materials

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Lanthanide-doped upconversion nanoparticles (UCNPs) have significant applications for single-molecule probes and high-resolution display. However, one of their major hurdles is the weak luminescence, and this remains a grand challenge to achieve at the single-particle level. Here, 484-fold luminescence enhancement in LuF 3 :Yb 3+ , Er 3+ rhombic flake UCNPs is achieved, thanks to the Yb 3+ -mediated local photothermal effect, and their original morphology, size, and good dispersibility are well preserved. These data show that the surface atomic structure of UCNPs as well as transfer from amorphous to ordered crystal structure is modulated by making use of the local photothermal conversion that is generated by the directional absorption of 980 nm light by Yb 3+ ions. The confocal luminescence images obtained by superresolution stimulated emission depletion also show the great enhancement of individual LuF 3 :Yb 3+ , Er 3+ nanoparticles; the high signal-to-noise ratio images indicate that the laser treatment technology opens the door for single particle imaging and practical application.The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adfm.201906137. studies obtained in the last decades are performed by a cluster of nanoparticles, which is quite different from that of an individual particle. [9,10] Research by Haro-González and co-workers demonstrates that the total fluorescence intensity of nanoparticle group not only depends on the number of particles, but also on the direction of the excitation polarization and the orientation of the UCNPs. [11] Unfortunately, a major obstacle for practical application of UCNPs at single particle level is still their weak luminescence. [12][13][14] Thus, it is necessary to find a useful strategy to optimize the optical properties of individual up-conversion nanoparticle (UCNP) for better luminescence efficiency.Complicated surface states of UCNPs play an important role in their upconversion efficiency, in which majority atoms combine with the enriched surface defects, leading a serious surface quenching effect. [15][16][17] To date, many surface passivation strategies, [18] like annealing treatment [17,19] and coating technology, [20,21] have been proposed for improving upconversion luminescence (UCL), however most of these efforts may not necessarily lead to the optimal enhancement at the single-particle level. This is because 1) annealing treatment can cause agglomeration of UCNPs and 2) the use of coreshell configuration is difficult to achieve in 1D and 2D core UCNPs. Thus, it is urgent to find a useful strategy that can not only efficiently passivate surface defects, but also maintain the good uniformity of particle size, morphology, and the excellent dispersibility.In this work, Yb 3+ -/Er 3+ -codoped LuF 3 UCNPs were synthesized by co-precipitation method, and irradiated by high-energy near-infrared (NIR) laser ( Figure S2, Supporting Information). Here, we propose photothermal conversion in the local lattice ...

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“…However, the polarization properties of single nanocrystals can be used to unequivocally determine the orientation of anisotropic nanocrystals. As demonstrated by Rodríguez‐Sevilla et al., the three‐dimensional orientation of NaYF 4 :Yb 3 + ,Er 3 + nanorods, optically manipulated by single‐ or dual‐beam optical tweezers, could be determined by in situ single‐particle polarized spectroscopy ( Figure ) . In another work by the same group, they reported on how time‐resolved, single particle polarized spectroscopy can be used to determine the orientation dynamics of a single UCNP when entering into an optical trap .…”

Section: Excitation Manipulation Of Upconversion Nanoparticlesmentioning

confidence: 96%

Photon Upconversion Kinetic Nanosystems and Their Optical Response

Liu

Huang

Valiev

et al. 2017

Laser & Photonics Reviews

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Lanthanide-doped photon upconversion nanoparticles (UCNPs) are capable of converting low-intensity near-infrared light to UV and visible emission through the synergistic effects of light excitation and mutual interactions between doped ions. UCNPs have attracted strong interest as unique spectrum converters and found a multitude of applications in areas like biomedical imaging, energy harvesting and information technology. UCNPs are distinct from many other types of luminescent materials in terms of the involvement of a host lattice and multiple optical centers, i.e., trivalent lanthanide ions with manyfolds of accessible long-lived energy states, in individual nanoparticles. The mutual interactions between these optical centers, i.e., sequential energy transfers, make them operate as an integrated unit and co-determine the luminescence kinetics and other optical properties of the individual nanoparticle. Thus, each nanoparticle consititutes a kinetic optical system. In this work, we explore UCNPs from the outset of being such kinetic optical systems and review their physical formation, the underlying photophysics, macroscopic statistical description, and their response to various optical stimuli in the spectral, polarization, intensity, temporal and frequency domains, and demonstrate ways that their optical output can be optimized by manipulating the excitation schemes. Our review highlights upconversion nanotechnology as an interdisciplinary field across chemistry, physics and biomedical engineering, with great future possibilities, flexibility and ramifications. We outline some of the potential directions of upconversion nanoparticle research.

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Determining the 3D orientation of optically trapped upconverting nanorods by in situ single-particle polarized spectroscopy

Cited by 57 publications

References 52 publications

Impact of Lanthanide Nanomaterials on Photonic Devices and Smart Applications

Impact of Lanthanide Nanomaterials on Photonic Devices and Smart Applications

Atomic‐Level Passivation of Individual Upconversion Nanocrystal for Single Particle Microscopic Imaging

Photon Upconversion Kinetic Nanosystems and Their Optical Response

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