Results 1 to 10 of about 1,047,276 (188)

NIR-induced spatiotemporally controlled gene silencing by upconversion nanoparticle-based siRNA nanocarrier [PDF]

open access: yesJournal of Controlled Release, 2018
Spatiotemporal control over the release or activation of biomacromolecules such as siRNA remains a significant challenge. Light‐controlled release has gained popularity in recent years; however, a major limitation is that most photoactivable compounds ...
Guojun Chen, Ruosen Xie, Yuyuan Wang
exaly   +3 more sources

Enhancement of single upconversion nanoparticle imaging by topologically segregated core-shell structure with inward energy migration. [PDF]

open access: yesNat Commun, 2022
Manipulating topological arrangement is a powerful tool for tuning energy migration in natural photosynthetic proteins and artificial polymers.
Zhang Y   +7 more
europepmc   +2 more sources

Recent advances in upconversion nanoparticle-based nanocomposites for gas therapy. [PDF]

open access: yesChem Sci, 2022
Gas therapy has attracted wide attention for the treatment of various diseases. However, a controlled gas release is highly important for biomedical applications.
Yang N, Gong F, Cheng L.
europepmc   +2 more sources

Upconversion Nanoparticle-Covalent Organic Framework Core-shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging. [PDF]

open access: yesAdv Mater
Despite the development of various medical imaging contrast agents, integrating contrast signal generation with therapeutic and microrobotic functions remains challenging without complicated fabrication processes. In this study, upconversion nanoparticle‐
Kim DW   +8 more
europepmc   +2 more sources

Single upconversion nanoparticle imaging at sub-10 W cm-2 irradiance. [PDF]

open access: yesNat Photonics, 2018
Lanthanide-doped upconversion nanoparticles (UCNPs) are promising single-molecule probes given their non-blinking, photobleaching-resistant luminescence on infrared excitation.
Liu Q   +5 more
europepmc   +2 more sources

Upconversion Nanoparticle-Based Luminescence DNA Sensor on Porous Silicon Substrate [PDF]

open access: yesBiosensors
Rare-earth-doped upconversion nanoparticles (UCNPs) exhibit upconversion luminescence upon excitation with infrared light and have been extensively utilized in the field of biosensing.
Yangzhi Zhang   +6 more
doaj   +2 more sources

Quantum optical immunoassay: upconversion nanoparticle-based neutralizing assay for COVID-19 [PDF]

open access: yesScientific Reports, 2022
In a viral pandemic, a few important tests are required for successful containment of the virus and reduction in severity of the infection. Among those tests, a test for the neutralizing ability of an antibody is crucial for assessment of population ...
Navid Rajil   +9 more
doaj   +2 more sources

Electrodeposition of Lithium-Based Upconversion Nanoparticle Thin Films for Efficient Perovskite Solar Cells [PDF]

open access: yesNanomaterials, 2022
In this work, high-quality lithium-based, LiYF4=Yb3+,Er3+ upconversion (UC) thin film was electrodeposited on fluorene-doped tin oxide (FTO) glass for solar cell applications.
Masfer Alkahtani   +6 more
doaj   +2 more sources

NIR-light-mediated spatially selective triggering of anti-tumor immunity via upconversion nanoparticle-based immunodevices.

open access: yesNat Commun, 2019
Immunomodulatory therapies are becoming a paradigm-shifting treatment modality for cancer. Despite promising clinical results, cancer immunotherapy is accompanied with off-tumor toxicity and autoimmune adverse effects.
Chu H, Zhao J, Mi Y, Di Z, Li L.
europepmc   +2 more sources

Molecular Antenna-Sensitized Upconversion Nanoparticle for Temperature Monitored Precision Photothermal Therapy [PDF]

open access: yesInternational Journal of Nanomedicine, 2020
Yanchun Wei, Sen Liu, Changjiang Pan, Zhongmei Yang, Ying Liu, Jianfang Yong, Li Quan Jiangsu Provincial Engineering Research Center for Biomedical Materials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai’an, Jiangsu, People ...
Wei Y   +6 more
doaj   +2 more sources

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