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  2. Fluorescence intermittency - Wikipedia

    en.wikipedia.org/wiki/Fluorescence_intermittency

    Fluorescence intermittency, or blinking, is the phenomenon of random switching between ON (bright) and OFF (dark) states of the emitter under its continuous excitation. It is a common property of the nanoscale emitters (molecular fluorophores , colloidal quantum dots ) related to the competition between the radiative and non-radiative ...

  3. Quantum dot - Wikipedia

    en.wikipedia.org/wiki/Quantum_dot

    Individual quantum dots can be created from two-dimensional electron or hole gases present in remotely doped quantum wells or semiconductor heterostructures called lateral quantum dots. The sample surface is coated with a thin layer of resist and a lateral pattern is then defined in the resist by electron beam lithography .

  4. Quantum biology - Wikipedia

    en.wikipedia.org/wiki/Quantum_biology

    Quantum biology is the study of applications of quantum mechanics and theoretical chemistry to aspects of biology that cannot be accurately described by the classical laws of physics. [1] An understanding of fundamental quantum interactions is important because they determine the properties of the next level of organization in biological systems.

  5. Intersystem crossing - Wikipedia

    en.wikipedia.org/wiki/Intersystem_crossing

    Fluorescence microscopy relies upon fluorescent compounds, or fluorophores, in order to image biological systems.Since fluorescence and phosphorescence are competitive methods of relaxation, a fluorophore that undergoes intersystem crossing to the triplet excited state no longer fluoresces and instead remains in the triplet excited state, which has a relatively long lifetime, before ...

  6. Fluorescence in the life sciences - Wikipedia

    en.wikipedia.org/wiki/Fluorescence_in_the_life...

    A simplified Jablonski diagram illustrating the change of energy levels.. The principle behind fluorescence is that the fluorescent moiety contains electrons which can absorb a photon and briefly enter an excited state before either dispersing the energy non-radiatively or emitting it as a photon, but with a lower energy, i.e., at a longer wavelength (wavelength and energy are inversely ...

  7. Silicon quantum dot - Wikipedia

    en.wikipedia.org/wiki/Silicon_quantum_dot

    Silicon quantum dots are metal-free biologically compatible quantum dots with photoluminescence emission maxima that are tunable through the visible to near-infrared spectral regions. These quantum dots have unique properties arising from their indirect band gap , including long-lived luminescent excited-states and large Stokes shifts .

  8. Today's Wordle Hint, Answer for #1250 on Wednesday, November ...

    www.aol.com/lifestyle/todays-wordle-hint-answer...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1250 ahead. Let's start with a few hints.

  9. Graphene quantum dot - Wikipedia

    en.wikipedia.org/wiki/Graphene_quantum_dot

    Graphene quantum dots (GQDs) are graphene nanoparticles with a size less than 100 nm. [1] Due to their exceptional properties such as low toxicity, stable photoluminescence , chemical stability and pronounced quantum confinement effect, GQDs are considered as a novel material for biological, opto-electronics, energy and environmental applications.

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