Results 181 to 190 of about 1,047,326 (236)

A portable and universal upconversion nanoparticle-based lateral flow assay platform for point-of-care testing.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2019
Upconversion nanoparticle-based lateral flow assays (UCNP-LFAs) have attracted significant attention in point-of-care testing (POCT) applications, due to the long-term photostability and enhanced signal-to-background noise ratio.
Yan Gong, Yamin Zheng, Birui Jin, M. You, Jiayu Wang, Xiujun Li, Min Lin, Feng Xu, Fei Li   +8 more
semanticscholar   +1 more source

MOF‐Coated Upconversion Nanoparticle Agents Enable Synergistic Photodynamic Therapy and Immunotherapy

Advanced Functional Materials
Although conventional therapeutic approaches demonstrate significant success in treating primary tumors, their efficacy diminishes when addressing distant and metastatic tumors, calling for new technologies to transport and activate the therapeutic ...
Jiarui Du, Tao Jia, Feng Li, Yang Li, Qinghui Wang, Liangcan He, Hans Ågren, Guanying Chen   +7 more
semanticscholar   +1 more source

Upconversion Nanoparticle Powered Microneedle Patches for Transdermal Delivery of siRNA

Advanced Healthcare Materials, 2019
Microneedles (MNs) permit the delivery of nucleic acids like small interfering RNA (siRNA) through the stratum corneum and subsequently into the skin tissue.
Min Wang, Yiyuan Han, Xiaojun Yu, Liangliang Liang, Hao Chang, David C. Yeo, Christian Wiraja, M. Wee, Linbo Liu, Xiaogang Liu, Chenjie Xu   +10 more
semanticscholar   +1 more source

FRET with Upconversion Nanoparticles

Accounts of Chemical Research
ConspectusUpconversion nanoparticles (UCNPs) have become one of the most frequently used nanomaterials for optical biosensing and imaging. UCNPs unique properties include high photostability, low toxicity, large anti-Stokes shifts, and negligible sample background fluorescence under near-infrared (NIR) excitation.
Eduard Madirov, Niko Hildebrandt
openaire   +2 more sources

Upconversion luminescence behavior of single nanoparticles

Nanoscale, 2015
The angle of this review is novel because it surveys the characterization methods, photophysical phenomena, and applications of single upconversion nanoparticles.
Jiajia, Zhou, Shiqing, Xu, Junjie, Zhang, Jianrong, Qiu   +3 more
openaire   +2 more sources

An Upconversion Nanoparticle Enables Near Infrared-Optogenetic Manipulation of the Caenorhabditis elegans Motor Circuit.

ACS Nano, 2019
Near-infrared (NIR) light penetrates tissue deeply, but its application to motor behavior stimulation has been limited by the lack of known genetic NIR light-responsive sensors.
Yanxiao Ao, Kanghua Zeng, Bin Yu, Yu Miao, W. Hung, Zhongzheng Yu, Yanhong Xue, T. Tan, Tao Xu, M. Zhen, Xiangliang Yang, Yan Zhang, Shangbang Gao   +12 more
semanticscholar   +1 more source

A three-dimensional DNA walker amplified FRET sensor for detection of telomerase activity based on the MnO2 nanosheet-upconversion nanoparticle sensing platform.

Chemical Communications, 2019
A novel fluorescent sensing platform for telomerase activity assay was developed by coupling a three-dimensional (3D) DNA walker with the MnO2 nanosheet-upconversion nanoparticle (UCNPs) complex-based fluorescence resonance energy-transfer (FRET) system.
Mingdi Xu, Junyang Zhuang, Xiaoyu Jiang, Xinzhong Liu, D. Tang   +4 more
semanticscholar   +1 more source

Metal complexes and nanoparticles for energy upconversion

Dalton Transactions, 2018
Welcome to this issue of Dalton Transactions featuring the themed issue “Metal complexes and nanoparticles for energy upconversion”.
Bergamini, Giacomo, Ceroni, Paola
openaire   +3 more sources

Rapid and background-free detection of avian influenza virus in opaque sample using NIR-to-NIR upconversion nanoparticle-based lateral flow immunoassay platform.

Biosensors & bioelectronics, 2018
Rapid and sensitive on-site detection of avian influenza virus (AIV) is the key for achieving near real-time surveillance of AIV and reducing the risk of dissemination.
Jaeyoung Kim, J. Kwon, Jin-Suck Jang, Hyojin Lee, Seungki Kim, Y. Hahn, Sang Kyung Kim, K. Lee, Seok Lee, H. Pyo, Chang-Seon Song, Joonseok Lee   +11 more
semanticscholar   +1 more source

Combating Concentration Quenching in Upconversion Nanoparticles

Accounts of Chemical Research, 2019
Lanthanide-doped upconversion nanoparticles (UCNPs) are a special class of luminescent nanomaterials that convert multiwavelength near-infrared (NIR) excitation into tunable emissions spanning the deep ultraviolet (UV) to NIR regions. In addition to large anti-Stokes shift, UCNPs also feature a sharp emission bandwidth, long excited-state lifetime, as ...
Bing Chen, Feng Wang
openaire   +2 more sources