Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations

Ortiz‐Rivero, Elisa; Labrador‐Páez, Lucía; Rodríguez‐Sevilla, Paloma; Haro‐González, P.

doi:10.3389/fchem.2020.593398

Cited by 5 publications

(2 citation statements)

References 69 publications

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“…Moreover, the combination of gradient forces, colloid chemistry and spectroscopy has been used to study fundamental aspects of optical trapping in upconversion nanoparticles. For example, Shan et al (2021) studied resonance-enhanced, gradient-force optical trapping of lowrefractive-index nanoparticles containing lanthanide ions at high doping concentration (Shan et al, 2021), and Ortiz-Rivero et al ( 2020) reviewed synthesis/surface modification and optical trap volume reduction techniques used to increase optical forces in lanthanide-doped upconversion nanoparticles (Ortiz-Rivero et al, 2020). Although we focus on overdamped Brownian motion, we emphasize that ballistic dynamics of upconversion nanoparticles may be studied.…”

Section: Resultsmentioning

confidence: 99%

Spectroscopic characterization of rare events in colloidal particle stochastic thermodynamics

et al. 2022

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Given the remarkable developments in synthetic control over chemical and physical properties of colloidal particles, it is interesting to see how stochastic thermodynamics studies may be performed with new, surrogate, or hybrid model systems. In the present work, we apply stochastic dynamics and nonlinear optical light-matter interaction simulations to study nonequilibrium trajectories of individual Yb (III):Er (III) colloidal particles driven by two-dimensional dynamic optical traps. In addition, we characterize the role of fluctuations at the single-particle level by analyzing position trajectories and time-dependent upconversion emission intensities. By integrating these two complementary perspectives, we show how the methods developed here can be used to characterize rare events.

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Section: Resultsmentioning

confidence: 99%

Spectroscopic characterization of rare events in colloidal particle stochastic thermodynamics

et al. 2022

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“…Recently, the optical trapping of UCNPs in the aqueous and biological media is performed due to its importance in biological applications [49][50][51][52]. Optical trapping (OT) of single or few particles using a laser beam with Gaussian profile is a non-destructive technique to explore trapped particle dynamics [53,54]. The OT of magnetic nanoparticles is still difficult due to the high absorption and scattering of incident laser beam [55,56].…”

Section: Introductionmentioning

confidence: 99%

Upconversion, MRI imaging and optical trapping studies of silver nanoparticle decorated multifunctional NaGdF4:Yb,Er nanocomposite

et al. 2021

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The multifunctional upconversion nanoparticles (UCNPs) are fascinating tool for biological applications. In the present work, photon upconverting NaGdF4:Yb,Er and Ag nanoparticles decorated NaGdF4:Yb,Er (NaGdF4:Yb,Er@Ag) nanoparticles were prepared using a simple polyol process. Rietveld refinement was performed for detailed crystal structural and phase fraction analysis. The morphology of the NaGdF4:Yb,Er@Ag was examined using high-resolution transmission electron microscope, which reveals silver nanoparticles of 8 nm in size were decorated over spherical shaped NaGdF4:Yb,Er nanoparticles with a mean particle size of 90 nm. The chemical compositions were confirmed by EDAX and inductively coupled plasma-optical emission spectrometry analyses. The upconversion luminescence (UCL) of NaGdF4:Yb,Er at 980 nm excitation showed an intense red emission. After incorporating the silver nanoparticles, the UCL intensity decreased due to weak scattering and surface plasmon resonance effect. The VSM magnetic measurement indicates both the UCNPs possess paramagnetic behaviour. The NaGdF4:Yb,Er@Ag showed computed tomography imaging. Magnetic resonance imaging study exhibited better T1 weighted relaxivity in the NaGdF4:Yb,Er than the commercial Gd-DOTA. For the first time, the optical trapping was successfully demonstrated for the upconversion NaGdF4:Yb,Er nanoparticle at near-infrared 980 nm light using an optical tweezer setup. The optically trapped UCNP possessing paramagnetic property exhibited a good optical trapping stiffness. The UCL of trapped single UCNP is recorded to explore the effect of the silver nanoparticles. The multifunctional properties for the NaGdF4:Yb,Er@Ag nanoparticle are demonstrated.

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Lanthanide Luminescent Nanocomposite for Non‐Invasive Temperature Monitoring in Vivo

Kong

et al. 2022

Chemistry A European J

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Temperature monitoring in vivo plays a vital role in the investigation of biological processes of organisms and the improvement of disease theranostic methods. The development of lanthanide luminescent nanocomposite‐derived temperature probes in vivo allows accurate and reliable interrogation of biological thermodynamic processes due to their superior photostability, high sensitivity, and non‐invasive sensing fashion. This concept presented an overview of the recent development of lanthanide luminescent nanocomposite which are suitable for in vivo temperature monitoring, including the thermometric principles, key features, materials designs as well as their potential biomedical applications for non‐invasive temperature detection in the living body. The perspectives of these lanthanide luminescent nanocomposite thermometers for the optimization of temperature monitoring performance and potential future development are also discussed.

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Optical Manipulation of Lanthanide-Doped Nanoparticles: How to Overcome Their Limitations

Cited by 5 publications

References 69 publications

Spectroscopic characterization of rare events in colloidal particle stochastic thermodynamics

Spectroscopic characterization of rare events in colloidal particle stochastic thermodynamics

Upconversion, MRI imaging and optical trapping studies of silver nanoparticle decorated multifunctional NaGdF4:Yb,Er nanocomposite

Lanthanide Luminescent Nanocomposite for Non‐Invasive Temperature Monitoring in Vivo

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