Articles with "upconversion nanoparticles" as a keyword



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Expanding the Toolbox of Upconversion Nanoparticles for In Vivo Optogenetics and Neuromodulation.

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Published in 2019 at "Advanced materials"

DOI: 10.1002/adma.201803474

Abstract: Optogenetics is an optical technique that exploits visible light for selective neuromodulation with spatio-temporal precision. Despite enormous effort, the effective stimulation of targeted neurons, which are located in deeper structures of the nervous system, by… read more here.

Keywords: upconversion nanoparticles; visible light; toolbox upconversion; neuromodulation ... See more keywords
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Embellishment of Upconversion Nanoparticles with Ultrasmall Perovskite Quantum Dots for Full‐Color Tunable, Dual‐Modal Luminescence Anticounterfeiting

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Published in 2021 at "Advanced Optical Materials"

DOI: 10.1002/adom.202100814

Abstract: Advanced fluorescent anticounterfeiting technology has attracted widespread attention and encourages people to develop reliable luminescent materials with multiple colors and tunable luminescence. Here, novel nanocomposites composed of perovskite quantum dots (PeQDs) and upconversion nanoparticles (UCNPs)… read more here.

Keywords: upconversion nanoparticles; embellishment upconversion; luminescence; perovskite quantum ... See more keywords
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Recent Advances on Functionalized Upconversion Nanoparticles for Detection of Small Molecules and Ions in Biosystems

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Published in 2018 at "Advanced Science"

DOI: 10.1002/advs.201700609

Abstract: Abstract Significant progress on upconversion‐nanoparticle (UCNP)‐based probes is witnessed in recent years. Compared with traditional fluorescent probes (e.g., organic dyes, metal complexes, or inorganic quantum dots), UCNPs have many advantages such as non‐autofluorescence, high chemical… read more here.

Keywords: functionalized upconversion; upconversion nanoparticles; nanoparticles detection; advances functionalized ... See more keywords
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Upconversion nanoparticles as intracellular pH messengers

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Published in 2020 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-020-02768-5

Abstract: Upconversion nanoparticles (UCNPs) should be particularly well suited for measurement inside cells because they can be imaged down to submicrometer dimensions in near real time using fluorescence microscopy, and they overcome problems, such as photobleaching,… read more here.

Keywords: upconversion nanoparticles; nanoparticles intracellular; mediated endocytosis; ucnp phab ... See more keywords
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Pulsed laser reshaping and fragmentation of upconversion nanoparticles — from hexagonal prisms to 1D nanorods through “Medusa”-like structures

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Published in 2020 at "Nano Research"

DOI: 10.1007/s12274-020-3163-4

Abstract: One dimensional (1D) nanostructures attract considerable attention, enabling a broad application owing to their unique properties. However, the precise mechanism of 1D morphology attainment remains a matter of debate. In this study, ultrafast picosecond (ps)… read more here.

Keywords: upconversion nanoparticles; like structures; medusa like; pulsed laser ... See more keywords
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Detection of phospholipase A2 in serum based on LRET mechanism between upconversion nanoparticles and SYBR green I.

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Published in 2021 at "Analytica chimica acta"

DOI: 10.1016/j.aca.2020.11.025

Abstract: Phospholipase A2 (PLA2) may be a vital biomarker for the prediction and diagnosis of some diseases. Consequently, it is of great significance to quantitatively detect PLA2 in biologic samples. Herein, on the basis of the… read more here.

Keywords: upconversion nanoparticles; detection; pla2; phospholipase ... See more keywords
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Deep-penetrating photodynamic therapy with KillerRed mediated by upconversion nanoparticles.

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Published in 2017 at "Acta biomaterialia"

DOI: 10.1016/j.actbio.2017.01.004

Abstract: The fluorescent protein KillerRed, a new type of biological photosensitizer, is considered as a promising substitute for current synthetic photosensitizes used in photodynamic therapy (PDT). However, broad application of this photosensitiser in treating deep-seated lesions… read more here.

Keywords: deep penetrating; upconversion nanoparticles; killerred ucnps; photodynamic therapy ... See more keywords
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Dispersion Stability and Biocompatibility of Four Ligand-Exchanged NaYF4:Yb,Er Upconversion Nanoparticles.

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Published in 2019 at "Acta biomaterialia"

DOI: 10.1016/j.actbio.2019.11.048

Abstract: Surface modification to obtain high dispersion stability and biocompatibility is a key factor for bio-application of upconversion nanoparticles (UCNPs). A systematic study of UCNPs modified with four hydrophilic molecules, separately comparing their dispersion stability in… read more here.

Keywords: upconversion nanoparticles; dispersion stability; surface; biocompatibility ... See more keywords
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Visible/near-infrared driven highly efficient photocatalyst based on upconversion nanoparticles/g-C3N4 nanocomposite

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.144839

Abstract: Abstract Graphitic carbon nitride (g-C3N4) is widely considered as a promising visible-driven photocatalyst. It is a type of inexpensive, air-stable, and non-toxic material that has been proven to exhibit high performance in photocatalysis. For more… read more here.

Keywords: upconversion nanoparticles; visible near; c3n4 nanocomposite; near infrared ... See more keywords
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Fast coating of hydrophobic upconversion nanoparticles by NaIO4-induced polymerization of dopamine: Positively charged surfaces and in situ deposition of Au nanoparticles

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Published in 2020 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2020.146821

Abstract: Abstract In this work, hydrophobic upconversion nanoparticles (UCNPs) were transformed into hydrophilic NPs via the rapid oxidative polymerization of dopamine (DA) induced by NaIO4 in a water-in-oil microemulsion system. The polydopamine (PDA)-coated UCNPs synthesized using… read more here.

Keywords: upconversion nanoparticles; hydrophobic upconversion; pda; ucnps pda ... See more keywords
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Development of a bimodal sensor based on upconversion nanoparticles and surface-enhanced Raman for the sensitive determination of dibutyl phthalate in food

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Published in 2021 at "Journal of Food Composition and Analysis"

DOI: 10.1016/j.jfca.2021.103929

Abstract: Abstract Phthalate acid esters (PAEs) are commonly used as plasticizers in several products. Unfortunately, they can easily leak into the environment, foods and enrich in body, eventually cause harm to human health. Hence, a rapid… read more here.

Keywords: based upconversion; upconversion nanoparticles; enhanced raman; food ... See more keywords