Chapter 157: Genetic Testing
July 5th.
Huang Haojie came to the Institute of Genetic Testing.
Because the genetically modified detector he explained before has been successfully developed.
The person in charge of the institute and the researchers are introducing the genetically modified detector to Huang Haojie.
There are two kinds of detectors they have developed, one is handheld and the other is desktop.
Handheld detectors are very similar to smartphones.
"Boss, you see this is the handheld detector we developed." The person in charge of the institute took one of the hand-held detectors to Huang Haojie.
After taking it and looking at it for a while, he figured out how to use it, the handheld detector is composed of two parts, the detector body that is very similar to a smartphone, and the detection sensor head.
The detection sensor head is like a stethoscope or like a magnifying glass.
"Boss, the detection sensor head, which is like a lens, is a detection screen, which is composed of a graphene screen composite circuit, as long as the juice of the crop is gently smeared on it, the detector can detect the genes of the crop in about 53 seconds." The person in charge of the research institute hurriedly introduced.
The technical principle of this detection technique is based on the fact that each base is affecting the electronic structure of graphene in different ways, and this can be determined.
Graphene-based electronic sensors are used in combination with nanopores.
Passing a single DNA molecule through a graphene electron sensor is like a string of beads passing through a tiny barbed wire fence, enabling real-time, high-throughput single-molecule sequencing.
A graphene field-effect transistor was used as a probe to show the presence of DNA bases adsorbed on the surface of graphene.
The Institute of Genetic Testing has experimentally demonstrated that the probe is capable of measuring different conductance characteristics after adsorbing four different DNA bases.
This result is attributed to the formation of the interface dipole field.
The tested data will be compared with the database genes in the detector, and the results can be obtained in the blink of an eye.
"Take some genetically modified crops and non-genetically modified crops and give them a try." Huang Haojie commanded.
"The boss will wait a moment and arrange it immediately." The person in charge of the institute hurriedly went to instruct people.
Soon five groups of genetically modified and non-genetically modified crops were taken.
They are large tomatoes and cherry tomatoes, corn, soybeans, papaya, cotton leaves.
Huang Haojie put on gloves, grabbed the experimental knife on the side, gently cut open the big tomato, took out a little bit of pulp and smeared it on the mirror surface.
Press the detection switch.
DiDi ......
[Test result: genetically modified ......] is followed by some more professional terms.
"How do I remove residue from the last test?" Huang Haojie asked the person in charge.
This is an important question, because if the residue from the previous test cannot be removed, the result of the next test will inevitably be thought of.
If you can't detect it once, just replace the mirror probe once! If it does, the cost will be unacceptable to Galaxy Technology.
"Boss, we've already thought about this, let's wash off the residue on it first." The person in charge said as he put the mirror probe in clean water and cleaned it.
Then wipe the mirror probe clean.
"After washing and wiping off the water, press this ionization cleaner to remove the residue in the mirror."
After saying that, the person in charge presses one of the cleanup options on the detector screen.
Huang Haojie nodded and continued to pick up cherry tomatoes for testing.
Sure enough, cherry tomatoes show that they are non-GMO, and in fact, everyone has a little cognitive error about cherry tomatoes (cherry tomatoes).
Because many people think that cherry tomatoes are genetically modified crops, in fact it is not genetically modified.
The reason is very simple, because the native species of tomato in South America is the small tomato.
And our common large tomato is actually artificially crossed and bred variety, and genetically modified tomato is also a large tomato (shelf-stable).
Other crops are also tested one by one, and the detector is very accurate for the detection of GMOs and non-GMOs.
Huang Haojie thought for a while and asked, "By the way, if the crop that needs to be tested is rice or a finished product, how to solve it?"
"We also take this into account, so we use a comprehensive detection machine, of course, the finished products are difficult to detect, because many of the finished products are heat-processed, so that the DNA or protease are destroyed."
The person in charge pointed to the detector on the side, which looked very similar to the previous arcade game consoles.
People who don't know still think that Galaxy Technology has launched an arcade game console.
"This comprehensive inspection machine is a combination of various testing technologies, and it can also detect 100% of semi-finished products such as rice or flour."
"Okay, now that the technology is out, you can contact Jianhua as soon as possible to prepare for mass production."
The head of the institute was ecstatic, after all, putting it into mass production meant that their institute could receive 20% of the profit in royalties.
"Yes, boss, I'll contact Mr. Li later."
"Now that the GMO testing technology is mature, the next step is to develop disease genes and gene matching." Huang Haojie proposed.
"Okay! We will continue to work hard. "The person in charge pecks at rice like a chicken.
Huang Haojie is thinking about the problem of genetic testing in China, in fact, China has stopped related projects of genetic testing since 2014.
The main reason is because there is no industry standard and there is a lack of regulation.
To give an inappropriate example, the genetic testing companies that are now popping up everywhere in China are like small restaurants, and the dishes they make are all called braised pork.
But because there is no one to supervise it, the better ones use chicken to pass off as pork, almost use tofu as pork, and even some use corrugated paper as pork, everything.
A publicity: Our braised pork can live forever after eating, as long as 998.
B publicity: Our braised pork can travel through time and space after eating, as long as 9998 ...... Ding propaganda: Our braised pork comes with the halo of the protagonist, and after eating, it can travel through the universe and be invincible, as long as it is 99999998.
But you must know that genetic testing is not a matter of being deceived after eating braised pork, it is a big deal to make a fuss in your stomach.
Genetic testing is to guide the medical plan, and miscarriage and mastectomy are not trivial.
If this thing is not allowed...... After doing a prenatal genetic test to tell you that the child is Down's abortion, check if there is anything wrong with the healthy big fat boy after the abortion, and guess how many doctors the child's family will kill......
In terms of the industry, for obvious reasons, the big bosses are now more eager to make profits.
In the initial stage of the industry, where the genetic testing technology itself is not very mature, the state of bad money chasing good money has begun to occur, and the serious ones basically can't beat the false propaganda.
All kinds of false propaganda emerge in an endless stream, and the average person, as a consumer, basically does not have enough relevant knowledge level to make judgments.
And the huge profits in this are not enough for outsiders......
And in terms of technology.
Except for a few well-defined disease-causing genes, most of the mechanisms are not well understood; Most of the research on the pathogenicity of genetic mutations has been on Westerners (Europeans and Americans), and the actual effects on Asians are unclear. Gene sequencing is not the difficulty, but big data processing is the difficult part.
Therefore, the domestic genetic testing industry is chaotic, most companies are using high-tech guigues to cheat money, and a few actually valuable testing projects need to be supervised.
Genetic testing is an irreversible wave of technology changing lives, but now there is no unified standard in the industry, and in the case of mixed fish, the above has to intervene.
Galaxy Technology is bound to enter the genetic testing industry.
"Your genetic testing institute will be divided into two research institutes, one dedicated to gene banks and the other specialized in human genome research." Huang Haojie thought for a while and commanded.
"Okay! I'll get it right. The person in charge hurriedly agreed.