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Lanthanide ion-doped upconversion nanoparticles for low-energy super-resolution applications [PDF]

open access: yesLight: Science & Applications
Energy-intensive technologies and high-precision research require energy-efficient techniques and materials. Lens-based optical microscopy technology is useful for low-energy applications in the life sciences and other fields of technology, but standard ...
Simone Lamon   +3 more
doaj   +2 more sources

Understanding shell coating effects to overcome quenching in single anisotropic upconversion nanoparticles [PDF]

open access: yesNature Communications
Shell coating is known to suppress luminescence quenching in spherical upconversion nanoparticles. However, the emergence of anisotropic nanoparticles with facet-selective, directional growth complicates the coating process, and the use of traditional ...
Yangjian Cai   +4 more
doaj   +2 more sources

Lanthanide-Doped Upconversion Nanoparticles for Super-Resolution Microscopy

open access: yesFrontiers in Chemistry, 2021
Super-resolution microscopy offers a non-invasive and real-time tool for probing the subcellular structures and activities on nanometer precision. Exploring adequate luminescent probes is a great concern for acquiring higher-resolution image.
Hao Dong   +3 more
doaj   +1 more source

Upconversion fluorescent tuning based on CdS and SiO2 photonic crystals for computer chip label

open access: yesResults in Optics, 2022
Manipulating fluorescence color to achieve patterned function may access to many applications and remains some challenges. In this work, we provide an effective way to manipulate upconversion fluorescence through the photonic crystals.
Zihao Chen   +4 more
doaj   +1 more source

Cytotoxicity of various types of coated upconversion nanoparticles. Overview [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2022
Background and Objectives: The object of the study was the cytotoxicity of various types of coated upconversion nanoparticles. The aim is to overview the literature on the cytotoxicity of various types of upconversion nanoparticles without/with coating ...
Verkhovskii, Roman A.   +9 more
doaj   +1 more source

Preparation and applications of polymer-modified lanthanide-doped upconversion nanoparticles

open access: yesGiant, 2022
Lanthanide-doped upconversion nanoparticles have emerged as a superior and promising nanomaterial due to their unique luminescent properties, nil-background noise, and low toxicity.
Haoran Zhang   +3 more
doaj   +1 more source

Photon upconversion through triplet exciton-mediated energy relay

open access: yesNature Communications, 2021
Photon upconversion in lanthanide-doped nanoparticles enables important technological developments. Here the authors demonstrate a mechanism leading to enhanced upconversion emission in core-shell nanoparticles, and long-distance energy transfer between ...
Sanyang Han   +10 more
doaj   +1 more source

Toxicity of Upconversion Nanoparticles. Overview [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Физика, 2020
Background and Objectives: The object of the study was the toxicity of upconversion nanoparticles. The aim is to overview the literature on the toxicity of various types of upconversion nanoparticles and to search for their maximum permissible ...
Yanina, Irina Iur'evna   +1 more
doaj   +1 more source

Microscale Self-Assembly of Upconversion Nanoparticles Driven by Block Copolymer

open access: yesFrontiers in Chemistry, 2020
Lanthanide-based upconversion nanoparticles can convert low-energy excitation to high-energy emission. The self-assembled upconversion nanoparticles with unique structures have considerable promise in sensors and optical devices due to intriguing ...
Qianqian Su   +6 more
doaj   +1 more source

A Facile Approach for the Ligand Free Synthesis of Biocompatible Upconversion Nanophosphors

open access: yesFrontiers in Chemistry, 2022
Upconversion nanophosphors, particles that can absorb low energy radiation and emit high energy light through multi-photon absorption processes, have gained augmented attention in recent years.
Elizabeth Shiby   +2 more
doaj   +1 more source

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