Qiu Feng hesitated, turned to Li Ang and said, "Succeeded?"
All the ceramic dishes in front of the two people have their lids opened.
In each ceramic dish, there is a small round spot, which is particularly obvious among the yellow traces formed by Staphylococcus aureus.
"Well..."
Li Ang put down the ceramic cover and nodded solemnly to Qiu Feng.
"Yeah!"
Qiu Feng cheered and hugged Li Ang warmly to celebrate this historic moment.
The two of them walked around in circles for several times before they realized what they were doing and separated from each other with slightly red faces.
"Ahem."
Li Ang coughed to cover up his embarrassment, "These solutions already have medicinal effects, but they are still in a suspension state and can only be used externally.
Further filtration and crystallization are needed.
How much spiritual power do you still have?"
"The recovery is full."
Qiu Feng brushed the hair beside his ears and lowered his head slightly to make the redness on his face less obvious, "Follow the previously agreed rules?"
"Yeah."
Li Ang took out a large bucket of solution from the refrigerator.
First, add activated carbon, cooperate with the talisman, freeze, decolorize and dehydrate.
Filtered through sterile absorbent cotton,
Replenish water, heat with hot water jacket, add crystallized potassium acetate,
(Potassium acetate is prepared by the acid-base neutralization reaction of potassium hydroxide and acetic acid)
(Heating calcium carbonate at high temperature generates calcium oxide, calcium oxide reacts with water to generate calcium hydroxide, calcium hydroxide reacts with plant ash to generate potassium hydroxide)
(Acetic acid is obtained by aerobic fermentation - a step similar to vinegar-making. In order to speed up the process, Leon used a 19th-century German method, which was to fill a tower with sawdust and drop alcohol-containing raw materials from the top of the tower.
Air is injected below the tower to force convection, allowing Acetobacter bacteria to quickly produce acetic acid)
Mechanical stirring and azeotropic distillation for about one hour,
Vacuum and pressure filtrate for thirty minutes,
Obtain crude crystals, which are washed with butanol and become wet crystals.
(Butanol is obtained from grain hydrolysis and fermentation)
Press powder, sieve, dry and bake.
Fortunately, Li Ang and Qiu Feng are both monks and can use spiritual power to replace part of the mechanical operation.
When the salt crystals were placed on a porcelain plate and brought out, the two subconsciously suppressed their breathing.
"This is..."
"Medical penicillin."
Li Ang released his mind power, suspended the salt crystals, poured them into the glass test tube, and capped the bottle.
Wrap it in layers of cotton and straw and put it in the medicine box.
"Let's go."
He picked up the medicine box and showed a big smile to Qiu Feng, "Go and save people."
"Yeah."
Qiu Feng took a deep breath and stepped out of the greenhouse.
The bell of Haotian rang, and the sky was bright.
Chai Chai and Li Leling were still sleeping on the second floor - Li Leling's maid and guards were also in the experimental building. When they saw Li Ang and Qiu Feng coming out, a female officer came forward and said, "Li Xiaolangjun is done? Do you need me to wake you up?"
Princess?"
"No, let her sleep."
Li Ang waved his hand, walked out of the back mountain, and took a carriage with Qiu Feng to Chang'an City.
Gululu——
The carriage wheels turned and the curtains were lifted by the morning breeze.
A farmer carrying a pole to sell vegetables in the city,
A businessman sitting behind the counter thinking about things and scratching his head,
The city gate guard with a childish face and yawning,
...
Li Ang looked through the window at the city of Chang'an waking up from his sleep, stretched out his hand, and felt the wind flowing between his fingers.
Squeak.
The carriage stopped outside Pingkangfang,
Li Ang and Qiu Feng jumped off the carriage and walked straight to the pavilion.
The door to the first floor of the pavilion was ajar, and a hospital doctor was lying on a temporary bed in the corridor.
Li Ang woke him up and said, "Give me the medical records of all the patients. I have already prepared the medicine. I will give it to the sickest patients first."
"Ah, oh, um."
The hospital doctor was obviously not awake yet. He was confused for a while before he realized what he was doing. He quickly took out a stack of documents from under the pillow and handed it to Li Ang.
Li Ang quickly flipped through the information. Due to the opinions and suggestions he submitted to the Imperial Medical Office, both the Imperial Medical Office and Chang'an Hospital developed the habit of recording detailed medical records.
Suddenly, his fingers froze, "Why are there only forty-three patients? Are there two more?"
"...this."
The doctor at the hospital hesitated for a moment and said with difficulty: "They are too ill and have already passed away..."
Li Ang's breathing was stagnant. Qiu Feng noticed the expression on his face and quickly asked the doctor at the hospital: "When did you leave?"
"Three days ago,"
The hospital doctor replied: "We wanted to inform you, Dr. Li, of the death at first, but your pharmaceutical production has reached a critical moment..."
Li Ang shook his head, "...it's still too late."
Qiu Feng hesitated for a moment, patted his shoulder, and took the document from his hand, "What happened three days ago happened suddenly. At that time, we didn't even have this batch of penicillin suspension. We have tried our best.
”
Li Ang pursed his lips slightly, said nothing, picked up the medicine box, and headed to the ward.
In order to prevent impurities in penicillin or patients from having allergic reactions, a skin test, that is, a skin sensitivity test, is required before using penicillin.
Li Ang mixed penicillin with physiological saline and conducted a skin test on the patient.
Fortunately, the purity of this batch of penicillin was very high, and none of the patients tested had any allergic reactions.
Then came the intravenous drip. When the procedure was completed, it started to drizzle outside the window.
Qiu Feng sat on the stool and yawned non-stop. When Li Ang saw this, he said: "There is nothing going on here. We have to wait for three or four days to observe the effect. Otherwise, I will send you home first. I will ask someone to talk to you at the academy."
Let me ask you for two or three days of leave."
"No, I can still hold on, I can hold on, ah——"
Qiu Feng yawned again as he spoke, and then nodded sheepishly.
Li Ang borrowed an oil-paper umbrella from the doctor at the hospital, and walked out of Pingkangfang with Qiu Feng, walking in Chang'an on a rainy day.
The drizzle is like silk, causing ripples on the river.
Pedestrians walked with umbrellas, unaware that the two doctors passing by them had just done something epoch-making.
"Arrived."
Qiu Feng stopped in front of his own residence in Daningfang, walked out of the umbrella area, hesitated for a moment, turned around, and nodded to Li Ang, "See you in the academy."
"See you in the academy."
Li Ang nodded in agreement and watched Qiu Feng walk into the mansion and disappear, then slowly turned around and stepped into the rain.
He returned to Pingkangfang, and after confirming the status of the intravenous drip patients, he went to the darkroom under the leadership of the hospital doctor and saw the bodies of the two dead patients.
The hospital knew Li Ang's habits and refrigerated the body with a talisman.
Li Ang looked at the patient who had lost the light of life, remained silent, and clenched his fists under his sleeves.
In fact, on the way to Chang'an, he thought more than once about secretly hindering the development of penicillin to prevent the emergence of super-resistant bacteria in his lifetime.
Anyway, penicillin is his achievement. Neither the academy nor the imperial court can understand it or understand the profound meaning of the steps involved.
He could definitely do some tricks to limit the use of penicillin within a certain range.
However, looking at Qiu Feng, looking at the people living and working in peace and contentment in Chang'an City, looking at the cold corpses of patients in front of him, he really couldn't make such a decision.
The meaning of medicine is to treat illnesses and save lives.
Then, open it up.
Open up the use of penicillin, and before he dies, establish a complete medical system for the country of Yu and the world to fight against the hidden and invisible enemies.
Li Ang gently pulled up the white cloth, covered the deceased, and stepped out of the door. He silently recited the oath in his heart.
Now I enter the medical field and vow to dedicate myself to humanitarian service;
I am grateful and respect my mentor as I treat my parents; and I practice medicine with conscience and dignity;
The patient's health and life are my primary concern;
I will strictly guard the secrets entrusted to me by patients;
I will do my best to safeguard the reputation and noble traditions of the medical profession;
I regard my colleagues as brothers;
I am responsible for my patients regardless of religion, nationality, race, politics or status;
From the time of conception, life has the highest dignity;
Even in the face of threats, my medical knowledge is not contrary to humanity.
I hereby solemnly and independently swear the above oath with my personality.