A small flower bloom revealing thin layer of the colorful petals, a large red first, then small violet, and finally the youngest, Orange.
But this immaculate wonderful bloom is not by mother nature, it is that scientists whom mad this whole flower as they knew how to make pieces of polymer, which change shape over time, according to a report published by The Guardian, the British newspaper, Tuesday, 27 September 2016.
The size of this flower, which was made by Kiause Lee a graduate student at the University of North Carolina at Chapel Hill, several centimeters, and takes two hours to fully bloom.
Sergei Chico, a professor of polymer chemistry leading the research, said: “I was surprised when I saw the strongly flower for the first time. It’s a piece of deaf chemical. If paint removed it would  become just a piece of normal white polymer. We have given life to this material”.
Organ Transplant
The flower shows to us how much a piece of polymer can be programmed to change shape at a predetermined time. If the flower had barely failed to wow you , Chico have many other practical applications. As he said, the same technology can be used in organ transplants, where materials take the right shape once planted in its place in the body during surgery.
This material is based primarily on the polymer gel, which has the same tenacity of the human cartilage. The form of this material depends on two types of chemical bonds, small percentage of strong bio chemical ties, and large percentage of weak hydrogen bonds.
When you bend a sheet of the polymer, the energy get stored in a powerful rubbery material links. This energy determines what is the next shape, When the rubber package expand, the strong links return it back to its shape.
The difference in the new material is that the weak links in the polymer gel acts as a counterweight to the strong links, and inhibit the process of continuous change and by controlling  the number and the power of the two types of links, scientists can then make complex structures through programmable sequence of steps.
Chico team describe it in the Nature Communications magazine how designed objects change shape through time. Unlike a lot of other materials the polymer hydrogel can be programmed to take a specific shape during a given time, without the need for a catalyst such as light or heat.
Chico said: “the motivation behind this work is to give these industrial materials functions and characteristics of natural tissues. In general industrial materials are responsive to stimuli as it can change density, hardness, and shape in the presence of heat. Normal tissue functions are more complex. It has an internal clock and can easily adapt . It is almost impossible to simulate normal tissue, but the next generation of industrial materials, will carry a lot of these functions to live “.