Results 41 to 50 of about 1,370 (209)

The glycoprotein CD147 defines miRNA‐enriched extracellular vesicles that derive from cancer cells

open access: yesJournal of Extracellular Vesicles, Volume 12, Issue 4, April 2023., 2023
Abstract Extracellular vesicles (EVs) are ideal for liquid biopsy, but distinguishing cancer cell‐derived EVs and subpopulations of biomarker‐containing EVs in body fluids has been challenging. Here, we identified that the glycoproteins CD147 and CD98 define subpopulations of EVs that are distinct from classical tetraspanin+ EVs in their biogenesis ...
Song Yi Ko   +5 more
wiley   +1 more source

A Simple Colorimetric Assay of Bleomycin‐Mediated DNA Cleavage Utilizing Double‐Stranded DNA‐Modified Gold Nanoparticles

open access: yesChemBioChem, Volume 24, Issue 1, January 3, 2023., 2023
The colorimetric detection of bleomycin (BLM)‐mediated DNA cleavage with sequence selectivity is successfully demonstrated using dsDNA‐AuNPs with high colloidal stability. Notably, the cleavage pathways between oxidative base release and DNA cleavage can be identified according to a change in color using a colloidal stability test applied to dsDNA ...
Yoshitsugu Akiyama   +5 more
wiley   +1 more source

Multiplexed Nanoflares: mRNA Detection in Live Cells [PDF]

open access: yesAnalytical Chemistry, 2012
We report the development of the multiplexed nanoflare, a nanoparticle agent that is capable of simultaneously detecting two distinct mRNA targets inside a living cell. These probes are spherical nucleic acid (SNA) gold nanoparticle (Au NP) conjugates consisting of densely packed and highly oriented oligonucleotide sequences, many of which are ...
Andrew E, Prigodich   +6 more
openaire   +2 more sources

Framework nucleic acids directed assembly of Au nanostructures for biomedical applications

open access: yesInterdisciplinary Medicine, Volume 1, Issue 1, January 2023., 2023
This Review article discusses the advanced progress in the Au and DNA nanomaterials. Introduced by the latest advances in frame nucleic acids‐detected Au nanostructures, the biomedical applications including biosensing and therapeutics are explored.
Bing Liu, Zhonglin Qi, Jie Chao
wiley   +1 more source

An ALMA Observation of Time Variations in Chromospheric Temperature of a Solar Plage Region

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Nanoflares and the shock formation of magnetohydrodynamic waves in the solar chromosphere have been considered as key physical mechanisms of the heating of the chromosphere and corona.
Masashi Abe   +5 more
doaj   +1 more source

Characterizing the Spectral Structure of Weak Impulsive Narrowband Quiet Sun Emissions

open access: yesThe Astrophysical Journal, 2023
Weak Impulsive Narrowband Quiet Sun Emissions (WINQSEs) are a newly discovered class of radio emission from the solar corona. These emissions are characterized by their extremely impulsive, narrowband, and ubiquitous nature.
Surajit Mondal   +3 more
doaj   +1 more source

Power-law Distribution of Solar Cycle–modulated Coronal Jets

open access: yesThe Astrophysical Journal Supplement Series, 2023
Power-law distributions have been studied as a significant characteristic of nonlinear dissipative systems. Since discovering the power-law distribution of solar flares that was later extended to nanoflares and stellar flares, it has been widely accepted
Jiajia Liu   +8 more
doaj   +1 more source

Observational Signatures of Coronal Heating in Magnetohydrodynamic Simulations without Radiation or a Lower Atmosphere

open access: yesThe Astrophysical Journal, 2022
It is extremely difficult to simulate the details of coronal heating and also make meaningful predictions of the emitted radiation. Thus, testing realistic models with observations is a major challenge.
James A. Klimchuk   +2 more
doaj   +1 more source

Nanoflare Diagnostics from Magnetohydrodynamic Heating Profiles [PDF]

open access: yesThe Astrophysical Journal, 2020
Abstract The nanoflare paradigm of coronal heating has proven extremely promising for explaining the presence of hot, multi-million degree loops in the solar corona. In this paradigm, localized heating events supply enough energy to heat the solar atmosphere to its observed temperatures.
K. J. Knizhnik   +3 more
openaire   +2 more sources

An Unsupervised Machine Learning-based Algorithm for Detecting Weak Impulsive Narrowband Quiet Sun Emissions and Characterizing Their Morphology

open access: yesThe Astrophysical Journal, 2023
The solar corona is extremely dynamic. Every leap in observational capabilities has been accompanied by unexpected revelations of complex dynamic processes.
Shabbir Bawaji   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy