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Photocatalysis: the proton transfer between titania surface and dye observed



"When the titania and the dye adsorbed on its surface are irradiated with a femtosecond pulsed laser proton transfer from the dye molecules to the titania surface, the fluorescence of the deprotonated dye is observed. Credit: Reprinted with permission from J. Phys. Chem. C, 2021, 125, 40. 21803-22396 (Supplementary Cover). Copyright 2021 American Chemical Society."(https://scitechdaily.com/photocatalysis-evaluation-proton-transfer-between-titania-surface-and-dye-observed/)

Today there was an article in the SciTech Daily about the protonic interaction between the titania layer and dye offered to make the new type of solar panels. In image two is the diagram of that kind of interaction. The thing is that increasing the number of protons on the layer. That thing increases the electronegativity of the layer. And that thing increases the flow of electrons. 

But the proton interaction offers to make many other things than just create electricity. Increasing the electronegativity would increase the speed of electrons when they hit the anode. And that thing makes some electric systems more powerful. This kind of system is making it possible to create a new type of switch for miniature microchips.


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The description of the proton-titania interaction from ScitechDaily goes like this: 


"When the titania surface and the dye adsorbed on its surface are irradiated with ultraviolet light. The proton transfer occurs from the excited states of the dye molecules to the titania surface where basic hydroxyl groups are generated". 

"And fluorescence is observed from the excited states of the deprotonated dye. Credit: Reprinted with permission from J. Phys. Chem. C, 2021, 125, 40. 21958–21963. Copyright 2021 American Chemical Society". (Image and text Source: https://scitechdaily.com/photocatalysis-evaluation-proton-transfer-between-titania-surface-and-dye-observed/


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That phenomenon can use to control nanomachines.

The interaction between the titania layer and protons happens by using the fluorescence molecule. The radiation from the fluorescence molecules is pushing protons from the other molecule to the titania layer. And that thing allows creating the new type of remote controllers that can use to control nanomachines. All fluorescence is not happening by the UV light. That effect is possible with all wavelengths of the spectrum. And by benefiting from many EM wavelengths is possible to make the new multi-channel remote-control system that can use in the nanomachines and electric components. 

When we are thinking about the system that controls some nanomachines the fluorescence molecules are the perfect tools for delivering signals for the control systems. When the machine would want to turn let's say to right the system can use fluorescence molecule that reacts to infrared light. 

And when the nanorobot wanted to turn left the system might use a fluorescence molecule that reacts to the UV light. The fluorescence molecule will send the radiation to the photovoltaic cells that are inducting the electricity to the control system of the nanomachines. 

If we want to make a nano-submarine that can travel in the human body we need four types of fluorescence molecules. And those molecules must react to different wavelengths of radiation. Four molecules with different wavelengths allow to turn submarine to four directions. Left, right, up, and down. And the system can be controlled by catheter where are the UV and other light LED:s. 

The electric power for the submarine can deliver by using radio waves. Also, other types of equipment can control by using light and fluorescence molecules. That system can use to deliver medicines to the right point of the body. Or that kind of submarine can drill the blood veins open in the cases of blockages. 

Sources:

https://scitechdaily.com/photocatalysis-evaluation-proton-transfer-between-titania-surface-and-dye-observed/


https://interestandinnovation.blogspot.com/

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