OK. So I downloaded and read through the paper from the Annals of Chemistry. That one unfortunately is behind a paywall, so you can't easily get to it without a university account (or paying a ridiculous sum of money). The other paper you mention from Nature is freely available, so everyone can read that one. But they are actually similar in content.
As I understand what they are doing, the only point of the gold in these papers is to be able to use Surface plasmon resonance (https://en.wikipedia.org/wiki/Surface_plasmon_resonance) in order to detect specific neurotransmitters in a blood, urine or tissue sample. You basically use either gold foil (in the first paper) or gold nano rods (in the second paper) and then the neurotransmitters interact with that. In the first paper, they create gold nanoparticles that are detected directly in the plasma atop the gold foil. In the second paper, the neurotransmitters deposit a silver shell on top of the nanorods, and it is the silver which is detected, indirectly indicating the presence of the neurotransmitter.
In either case, the presence of either gold nanoparticles or a silver shell on the gold nanorods is used to infer the presence of neurotransmitter at that location. Using this system, scientists can very quickly determine the presence, concentration and distribution of a neurotransmitter that they are looking for in a sample.
You don't ever create gold nanorods. You supply gold nanorods (or gold foil) as the matrix on which to detect the neurotransmitters under study through SPR. SPR is a much faster technique than the traditional methods used to quantify these agents.
So the TL;DR is that these papers are talking about a way to identify neurotransmitters in samples. In the process, they destroy delicate gold structures on the sensor, which must then be recycled and reprocessed. They don't create the gold rods/film. They destroy them.
"The growth of gold nanoparticles through the oxidation of catecholamine neurotransmitters, as active reducing agents, has been previously reported18. As a result of gold nanoparticle’s growth, the alteration of the absorption spectra as well as the color change in gold nanoparticle solution can be clearly observed." - https://www.nature.com/articles/s41598-017-08704-5
Says right there, they are growing gold nanoparticles through the process.
You're right, they do destroy the rods/film but what is left is a complex structure that cannot be made otherwise.
True. You might be able to harvest gold nanoparticles. (Not gold rods though.) But if all you want is random gold nanoparticles from a gold foil, you can do it in much easier and cheaper ways than this, and on an industrial scale. This is an expensive scientific setup designed to detect the presence and concentration of neurotransmitters. The complex structure that is left is only useful for detecting the presence in the sample under study.
This is a scientific apparatus whose function is neurotransmitter detection.
Try as I might, I'm pretty sure I'm not gonna find a study that states "Adrenocrhome production using gold nanorods allows us to make gold nanostructures for use in life-extending serums and nanomachines."
This is the most relative study I've found that even hints at that being a possibility.
Of course it is a stretch. But it says right there that you can make complex gold structures by injecting gold nanorods into the adrenaline oxidation process. It doesn't elaborate what structures result, but that they do make distinct structures with different properties based on the neurotransmitter that was oxidized.
If it is true this has been possible since ancient times, this study is likely just rediscovering old, hidden knowledge that has always been known but they found it in a lab while pursuing a different goal. Basically, they found the old kept truth the long-way around and by accident.
Chemist here. They are definitely not talking about creating gold from other elements or compounds. This is existing gold being transformed into a different physical form, in this case rod shapes that function in some different way than another physical form. that is honestly all that is happening here
The golden goose meets full
Metal alchemist? Interesting and dark theory. I have heard gold and blood and how it congregates after you eat it is a popular thing for the demons. Adds to the plausibility of this theory, to me.
OK. So I downloaded and read through the paper from the Annals of Chemistry. That one unfortunately is behind a paywall, so you can't easily get to it without a university account (or paying a ridiculous sum of money). The other paper you mention from Nature is freely available, so everyone can read that one. But they are actually similar in content.
As I understand what they are doing, the only point of the gold in these papers is to be able to use Surface plasmon resonance (https://en.wikipedia.org/wiki/Surface_plasmon_resonance) in order to detect specific neurotransmitters in a blood, urine or tissue sample. You basically use either gold foil (in the first paper) or gold nano rods (in the second paper) and then the neurotransmitters interact with that. In the first paper, they create gold nanoparticles that are detected directly in the plasma atop the gold foil. In the second paper, the neurotransmitters deposit a silver shell on top of the nanorods, and it is the silver which is detected, indirectly indicating the presence of the neurotransmitter.
In either case, the presence of either gold nanoparticles or a silver shell on the gold nanorods is used to infer the presence of neurotransmitter at that location. Using this system, scientists can very quickly determine the presence, concentration and distribution of a neurotransmitter that they are looking for in a sample.
You don't ever create gold nanorods. You supply gold nanorods (or gold foil) as the matrix on which to detect the neurotransmitters under study through SPR. SPR is a much faster technique than the traditional methods used to quantify these agents.
So the TL;DR is that these papers are talking about a way to identify neurotransmitters in samples. In the process, they destroy delicate gold structures on the sensor, which must then be recycled and reprocessed. They don't create the gold rods/film. They destroy them.
"The growth of gold nanoparticles through the oxidation of catecholamine neurotransmitters, as active reducing agents, has been previously reported18. As a result of gold nanoparticle’s growth, the alteration of the absorption spectra as well as the color change in gold nanoparticle solution can be clearly observed." - https://www.nature.com/articles/s41598-017-08704-5
Says right there, they are growing gold nanoparticles through the process.
You're right, they do destroy the rods/film but what is left is a complex structure that cannot be made otherwise.
That's probably a stretch.
True. You might be able to harvest gold nanoparticles. (Not gold rods though.) But if all you want is random gold nanoparticles from a gold foil, you can do it in much easier and cheaper ways than this, and on an industrial scale. This is an expensive scientific setup designed to detect the presence and concentration of neurotransmitters. The complex structure that is left is only useful for detecting the presence in the sample under study.
This is a scientific apparatus whose function is neurotransmitter detection.
Try as I might, I'm pretty sure I'm not gonna find a study that states "Adrenocrhome production using gold nanorods allows us to make gold nanostructures for use in life-extending serums and nanomachines."
This is the most relative study I've found that even hints at that being a possibility.
Of course it is a stretch. But it says right there that you can make complex gold structures by injecting gold nanorods into the adrenaline oxidation process. It doesn't elaborate what structures result, but that they do make distinct structures with different properties based on the neurotransmitter that was oxidized.
If it is true this has been possible since ancient times, this study is likely just rediscovering old, hidden knowledge that has always been known but they found it in a lab while pursuing a different goal. Basically, they found the old kept truth the long-way around and by accident.
Chemist here. They are definitely not talking about creating gold from other elements or compounds. This is existing gold being transformed into a different physical form, in this case rod shapes that function in some different way than another physical form. that is honestly all that is happening here
The golden goose meets full Metal alchemist? Interesting and dark theory. I have heard gold and blood and how it congregates after you eat it is a popular thing for the demons. Adds to the plausibility of this theory, to me.
Golden kids https://archive.vn/uCelK