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Unreliability of the dot probe task
European Journal of Personality, 2005The dot probe task is a widely used measure of attention allocation to threatening stimuli. The present two studies examine the reliability of different versions of this task using words as well as pictures as stimulus material. Estimates of both internal consistency and retest reliability over one week lead to the conclusion that the dot probe task is
Stefan C Schmukle
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Quantum Dots as Cellular Probes
Annual Review of Biomedical Engineering, 2005▪ Abstract Robust and bright light emitters, semiconductor nanocrystals [quantum dots (QDs)] have been adopted as a new class of fluorescent labels. Six years after the first experiments of their uses in biological applications, there have been dramatic improvements in understanding surface chemistry, biocompatibility, and targeting specificity. Many
A Paul, Alivisatos +2 more
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Probing silicon quantum dots by single-dot techniques
Nanotechnology, 2017Silicon nanocrystals represent an important class of non-toxic, heavy-metal free quantum dots, where the high natural abundance of silicon is an additional advantage. Successful development in mass-fabrication, starting from porous silicon to recent advances in chemical and plasma synthesis, opens up new possibilities for applications in ...
Ilya, Sychugov +2 more
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A quantum dot–lucigenin probe for Cl−
The Analyst, 2008In this work, the first chloride ion sensor based on QD-lucigenin nanoparticles is reported. The mechanism uses the ability of semiconductor QDs to engage in short range exchange processes, leading to fluorescence changes. An acridinium dication (lucigenin) which is an electron acceptor, was self-assembled on the surface of negative charged QDs (capped
Maria Jose, Ruedas-Rama +1 more
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Protease-activated quantum dot probes
Biochemical and Biophysical Research Communications, 2005We have developed a novel nanoparticulate luminescent probe with inherent signal amplification upon interaction with a targeted proteolytic enzyme. This construct may be useful for imaging in cancer detection and diagnosis. In this system, quantum dots (QDs) are bound to gold nanoparticles (AuNPs) via a proteolytically degradable peptide sequence to ...
Emmanuel, Chang +6 more
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Fluorescent carbon dots as intracellular imaging probes
WIREs Nanomedicine and Nanobiotechnology, 2020AbstractFluorescent carbon dot has emerged as promising alternative of conventionally known quantum dot or molecular probe as potential intracellular imaging probe. In particular, <10 nm size, tunable and bright fluorescence of carbon dot deserve the application potential as intracellular imaging probe.
Haydar Ali, Santu Ghosh, Nikhil R. Jana
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Positron probing of quantum dots
Applied Surface Science, 1999CdSe quantum dots (QDs) of different sizes were deposited as thin layers on glass slides and examined by positrons with the two detector coincident Doppler broadening technique (coPAS). Dots of 2.5 and 3.6 nm size were compared to the larger 4.4 nm size.
Marc H Weber +2 more
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Nature Photonics, 2007
Semiconductor quantum dots that are engineered to have both fluorescent and paramagnetic properties offer great potential as biological probes for imaging cellular activity. However, before such probes can be used in vivo, several challenges need to be overcome.
Rumiana Bakalova +3 more
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Semiconductor quantum dots that are engineered to have both fluorescent and paramagnetic properties offer great potential as biological probes for imaging cellular activity. However, before such probes can be used in vivo, several challenges need to be overcome.
Rumiana Bakalova +3 more
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Quantum dots‐based chemiluminescence probes: an overview
Luminescence, 2019AbstractThis mini‐review describes the recent developments in quantum dots‐based nanoprobes in liquid‐phase chemiluminescence (CL) analysis. In the referenced reports, multiple quantum dots (QDs) were adopted as final emission species either after direct oxidation reactions (direct CL) or after chemiluminescence resonance energy transfer (indirect CL).
Hongjie Song +3 more
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