https://safirsoft.com Mobile cell clusters can help assemble a small copy of themselves
Don't believe the ad - this is not a clone or duplication.

Scientists announced Monday that they have improved a method for optimizing mobile cell populations to organize other cells into smaller groups. The situation could be the mobile phone itself. The researchers call this process "cinematic self-replication," although that's not entirely true - the copies need human help to get started, are smaller than the original, and the transcription process stops multiple times. courses.

So, of course, CNN claimed in its cover that "the world's first living robots can now reproduce." The developments are promoting it much more than they are. So, let's take a look at what has already been done. Among the many interesting properties of cells, there are two related types. The first is that these cells stick together. If you put a group of them in a culture dish, they will turn into a ball. You can even separate them completely and place a bunch of them in the center of the farm, and they stick together to form a ball of cells.

The second feature relevant to cells is that they are self-organizing. The outer cells contain thread-like protrusions called cilia. They rotate in a circle and press the liquid around the culture medium. Over time, neighboring cells align their cilia in such a way that eventually the entire cell sphere rotates their cilia at the same time.

This is enough for the entire cell sphere to start moving - for simplicity's sake. We call these mobile cellular spheres, or MBC. Without barriers, MBC traces a circular path in the culture vessel and continues to do so for up to two weeks before the power runs out. These are CNN's "live bots". Nor is it new. The same research team described it in an article in March. Advertising

What is new is that the researchers placed a group of isolated cells in a container with MBC. As the CSCs swirled around, they formed a cluster of cells in the center of the circle they traced (think of the moving cell path as a circular cake - the cells are stacked). Because these loosened cells naturally stick together, a new lump begins to form.

The new blocks themselves were too small to do anything. But researchers can take it out of the container and put it in a new container with a dense supply of extra cells. small groups grow by combining some of these extra cells and eventually get to a point where they move as well.

Too small for me

The problem with this process is that it is ineffective The second generation of MBC was smaller than the first and follows a smaller circuit. A maximum of two generations of MBC can be used before stopping the entire process. Therefore, these are not accurate or effective simulators.

New work looks for ways to improve this by remaking the original MBC. But surgical correction of MBC is a difficult task, after which it takes several weeks in culture-exposed containers to see how it behaves. Since they were lazy by nature, the researchers decided to model their behavior using a computer and applied an evolutionary algorithm that created a variety of shapes that were then tested for their ability to assemble cells using a physical simulator. “Unfortunately, a researcher in the Department of Computer Science told CNN that this is a combination of algorithm and AI modeling. If scientists want people to know what they are doing better, if they are really doing it.” It will help provide people with accurate information.) < /p> < p> Since the most effective propagation begins with the accumulation of a large number of cells, the algorithm basically found the MBC motifs that performed the best. It turns out that the solution given by the model is a semi-cyclic solution. disc, then flatten it. But the results were remarkable: some crescent-shaped MBCs could produce offspring that could produce three more generations before the process failed. But again, this was not entirely frequent, because posterity would not have taken on a crescent shape without surgery.



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