Results 171 to 180 of about 1,047,326 (236)

Upconversion Nanoparticle Decorated Spider Silks as Single-Cell Thermometers.

Nano letters (Print), 2021
Noninvasive and sensitive thermometry of a single living cell is crucial to the analysis of fundamental cellular processes and applications to cancer diagnosis.
Z. Gong, Tianli Wu, Xixi Chen, Jinghui Guo, Yao Zhang, Yuchao Li   +5 more
semanticscholar   +1 more source

Protein-Gated Upconversion Nanoparticle-Embedded Mesoporous Silica Nanovehicles via Diselenide Linkages for Drug Release Tracking in Real Time and Tumor Chemotherapy.

ACS Applied Materials and Interfaces, 2021
Two novel stimuli-responsive drug delivery systems (DDSs) were successfully created from bovine serum albumin- or myoglobin-gated upconversion nanoparticle-embedded mesoporous silica nanovehicles (UCNP@mSiO2) via diselenide (Se-Se)-containing linkages ...
Hua Yan, Jiangtao Dong, Xuan Huang, Xuezhong Du   +3 more
semanticscholar   +1 more source

Applications of Upconversion Nanoparticles in Cellular Optogenetics

SSRN Electronic Journal, 2021
Upconversion-mediated optogenetics is an emerging powerful technique to remotely control and manipulate the deep-tissue protein functions and signaling pathway activation. This technique uses lanthanide upconversion nanoparticles (UCNPs) as light transducers and through near-infrared light to indirectly activate the traditional optogenetic proteins ...
Yinyan Lin, Yuanfa Yao, Wanmei Zhang, Qiuyu Fang, Luhao Zhang, Yan Zhang, Yingke Xu   +6 more
openaire   +2 more sources

High-Sensitivity Sensing of Divalent Copper Ions at the Single Upconversion Nanoparticle Level.

Analytical Chemistry, 2021
Single-nanoparticle-level sensing allows us to measure individual molecular interactions and probe environmental stimuli at nanometer-scale resolution.
Xindong Wang, Xiaorong Zhang, Dingxin Huang, Tianyu Zhao, Lili Zhao, X. Fang, Chunhui Yang, Guanying Chen   +7 more
semanticscholar   +1 more source

Cross Relaxation Enables Spatiotemporal Color‐Switchable Upconversion in a Single Sandwich Nanoparticle for Information Security

Advances in Materials, 2023
Smart control of ionic interaction dynamics offers new possibilities for tuning and editing luminescence properties of lanthanide‐based materials. However, it remains a daunting challenge to achieve the dynamic control of cross relaxation mediated photon
Jinshu Huang, Long Yan, Zhengce An, Haopeng Wei, Chao Wang, Qinyuan Zhang, Bo Zhou   +6 more
semanticscholar   +1 more source

Engineering Orthogonal Upconversion through Selective Excitation in a Single Nanoparticle

Advanced Functional Materials, 2023
Orthogonal upconversion with color‐switchable emissions under different excitation conditions provides new chances to diverse frontier applications of luminescent materials.
Jinshu Huang, Zhengce An, Long Yan, Bo Zhou   +3 more
semanticscholar   +1 more source

Overcoming thermal quenching in upconversion nanoparticles

Nanoscale, 2021
Recent efforts for alleviating energy dissipation and enhancement of energy collection are reviewed to combat thermal quenching in UCNPs.
Yanze Wang, Bing Chen, Feng Wang
openaire   +2 more sources

Lanthanide-doped upconversion nanoparticles

Physics Today, 2015
A new class of nanomaterials that convert near-IR radiation into tunable visible light has important implications for many fields of science and technology.
BETTINELLI, Marco Giovanni, Carlos, Luís, Liu, Xiaogang   +2 more
openaire   +2 more sources

Upconversion nanoparticle-mOrange protein FRET nanoprobes for self-ratiometric/ratiometric determination of intracellular pH, and single cell pH imaging.

Biosensors & bioelectronics, 2020
Fluorescence based intracellular pH nanoprobes have been developed that overcomes the limitations imposed by shallow penetration depth of ultraviolet excitation, photostability, phototoxicity, and interference from background autofluorescence.
Sandip Ghosh, Yu-Fen Chang, De-Ming Yang, S. Chattopadhyay   +3 more
semanticscholar   +1 more source

Chiral Core-Shell Upconversion Nanoparticle@MOF Nanoassemblies for Quantification and Bioimaging of Reactive Oxygen Species in Vivo.

Journal of the American Chemical Society, 2019
In this study, a hybrid nanoassemblies consisting of a upconversion nanoparticle (UCNP) core and a zeolitic imidazolate framework-8 (ZIF) shell encapsulated with chiral NiSx NPs (denoted as UCNP@ZIF-NiSx) were fabricated. The UCNP@ZIF-NiSx nanoassemblies
Changlong Hao, Xiaoling Wu, Maozhong Sun, Hongyu Zhang, Aimeng Yuan, Liguang Xu, Chuanlai Xu, Hua Kuang   +7 more
semanticscholar   +1 more source