Is it legal?

The answer is also affirmative.

Even with the support of Ke Da or even the Science Institute behind Huadun Biotech, it wouldn't make any difference.

Once such an incident occurs, what awaits them will inevitably be severe punishment and a frenzy of public outrage.

Therefore, neither Nutrien nor its backers would fear Huadun Biotech attempting to replicate this chemical grafting process; they might even be hoping you would.

Then Xu Yun thought for a moment and proposed a new idea:

"Director Yu, what do you think about using the ion beam injection method?"

Yu Yuanyong blinked:

"Ion beam injection method?"

Anyone who studied with ions in their past life should know.

The so-called ion beam injection method refers to the method of accelerating metal ions generated through ionization in an electric field, forming a high-speed ion beam to strike a specified substrate.

Due to the high speed of the ion beam, it can be injected into the surface layer and lattice of the substrate, thus achieving a periodic effect.

However, unlike the chemical grafting method, the ion beam injection method is mostly used in the fields of physics and materials science.

It is especially used for semiconductor surface modification and doping, rarely used in catalyst preparation.

Seeing Yu Yuanyong a bit puzzled, Xu Yun patiently explained:

"You see, the metal ions in the ion beam are all positively charged, which will repel each other and separate."

"So the metal ions injected into the substrate will basically remain in a highly isolated state."

"By adding a chemical intermediate, such as catechol, a Y-shaped molecular sieve is formed, isn't it?"

Yu Yuanyong's eyes widened as he listened, his mouth involuntarily gaping, a look of disbelief on his face.

A few seconds later.

He suddenly clenched his right fist and heavily struck his left palm:

"Right, we can completely use the introduction of isotopic metal ions to force out the cations in the antibonding orbitals, oh my mind, how could I not think of this layer?"

Xu Yun smiled without saying a word.

Ion beam injection method.

This was the last paper he published before leaving the research field in his previous life, which involved the defect site reaction transition effects of vanadium metal, addressing molecular sieves.

The DOI is... ahem, can't say, saying it would cost me my online alias.

In summary.

This last paper before leaving the circle is like your first love, perhaps unforgettable for life.

Therefore, realizing that Yu Yuanyong and his team were stuck on molecular sieves, Xu Yun immediately thought of this approach.

With Xu Yun's suggestion, the following steps became straightforward.

Detection methods for transition metal catalysis, besides the final product, can also be determined using UV Raman spectroscopy.

Especially in terms of molecular sieves.

The accuracy of Raman spectral peaks is even slightly higher.

Thus, Yu Yuanyong soon prepared for the Raman spectroscopy cleaning phase.

Half an hour later.

Yu Yuanyong's team was ready and officially began testing.

Ten minutes into the test.

Transition metal heteroatoms began entering the molecular sieve framework.

At the same time.

On the UV-Visible absorption spectrum, charge transfer transition absorption between the pπ of the framework oxygen atoms and the dπ of the framework transition metal atoms immediately appeared.

After more than twenty minutes.

A report appeared on the equipment table in front of Yu Yuanyong.

"Absorption peaks in the UV region at 200–350nm, charge transfer transition absorption band center at 220nm..."

Yu Yuanyong extracted some information and began calculations simultaneously with Xu Yun.

Five minutes later.

Xu Yun and Yu Yuanyong raised their heads one after another.

Lin Zhenhua, who stood nearby, noticed.

At this moment, both of their expressions were somewhat serious, not as joyful as expected.

Then the two exchanged a glance, as Xu Yun said:

"Director Yu, to what magnitude has the Raman signal amplified according to your calculations?"

Yu Yuanyong furrowed his brow and gave a number:

"Five orders of magnitude, what about you?"

Xu Yun raised the calculation paper in his hand towards him:

"Also five, five is not enough..."

Yu Yuanyong's brows furrowed deeper; he scrutinized the report again, puzzled:

"Strange, the charge transfer transition absorption band center is around 220nm, and the nearest UV laser close to this absorption band is 244nm, the data is definitely correct."

"According to the resonance Raman principle, when the excitation source energy is close to the electronic absorption band, resonance will inevitably occur between the electronic and vibrational states."

"The Raman signal intensity of the vibration modes associated with this resonance should match the transition formula, so the tetrahedral coordination magnitude should be 6 to 7..."

Xu Yun also picked up the report, shaking it like a doctor examining a CT, carefully reviewing it.

A few minutes later.

Xu Yun's expression suddenly tightened, pointing to a column and saying to Yu Yuanyong:

"Director Yu, look here, why is there such a strong Raman peak at the position of 530?"

A moment later. 𝗳𝗿𝐞𝕖𝘄𝗲𝕓𝗻𝚘𝚟𝕖𝐥.𝚌𝕠𝕞

Yu Yuanyong and Xu Yun simultaneously realized something and said in unison:

"Selective excitation?"

Selective excitation.

Refers to a situation where, within a certain range, the feedback is lower than expected.

It could be man-made, or it could spontaneously occur due to energy loss during the reaction.

Just like the gas stove in our daily life.

Sometimes you turn it to low heat because the dish must be slow-cooked on low heat to perfection.

If needed, you can adjust the firepower at any time.

But sometimes you turn it to low heat because the pipeline is about to run out of gas.