The collective properties of nanoparticles manifest in their ability to self-organize into complex microscale structures. Slow oxidation of tellurium ions in cadmium telluride (CdTe) nanoparticles results in the assembly of 1- to 4-micrometer-long flat ribbons made of several layers of individual cadmium sulfide (CdS)/CdTe nanocrystals. Twisting of the ribbons with an equal distribution of left and right helices was induced by illumination with visible light. The pitch lengths (250 to 1500 nanometers) varied with illumination dose, and the twisting was associated with the relief of mechanical shear stress in assembled ribbons caused by photooxidation of CdS. Unusual shapes of multiparticle assemblies, such as ellipsoidal clouds, dog-bone agglomerates, and ribbon bunches, were observed as intermediate stages. Computer simulations revealed that the balance between attraction and electrostatic repulsion determines the resulting geometry and dimensionality of the nanoparticle assemblies.
Ohhh. So all that crazy talk about miracles from the Light of the World is...
never mind.
Science and religion are very very seperate. Mya bad.
interesting
Is it true that dark is heavier than light and that’s why it sinks to the bottom of the ocean?
This was poorly written. They might as well have said that “light can affect matter”. Big deal. In this case, light can cause an electrochemical change in matter. Been doing it in plants for a long time.
I see matter as nothing more than, metaphorically speaking, coagulated energy. I also think that an excellent analogy to our “real world” would be “The Matrix”. What we perceive as the “real world” is almost entirely empty space.
That is significant.
Learned this at age 5 when I left an old 45rpm on the window sill.
Light is a bunch of photons zipping through space at, well, the speed of light. Even though their mass is miniscule, the fact that they beat the hell out of something after a while should really not be a surprise.
Or am I missing something?
/
what happened to nanoparticles not exposed to ambient light?
If I'm remembering correctly back in the mid to late 60's photocell operated relays were fabricated from cadmium sulfide as the photo sensitive element used to control the relay operation. I seem to recall selenium also have photo sensitive properties. Selenium was mainly used in "solid state" rectifiers to produce DC from AC input without resorting to vacuum tubes or mercury filled "ignitrons". This technology was in use before WWII and most contemporary EE have never even heard of it.
Regards,
GtG
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Cheers!