Peptides play a major role in the fundamental physiological and biochemical functions of the body. For decades, science has actively engaged in their learning. Peptide - is a molecule which is formed by joining two or more amino acids. If the number of amino acids in the molecule is less than fifty, are called peptides, if more - proteins.

Amino acids joined by a peptide bond - nitrogen audio acid joins the carboxyl carbon atom other. Peptides were present in all the cells of living organisms and are involved in a variety of processes. They exist in a variety of enzymes, hormones, antibiotics Antibiotics - whether they will help you in the foreseeable future? , Receptors, and so forth.

The main classes are dairy peptides, and neribosomnye ribosomal peptides and peptones. The now very widely used synthetic peptides which are used in cosmetic, pharmaceutical and other industries. There are listed some of the more common sinteicheskih peptides.

Melanotan 1

Melanotan - a synthetic analogue of the hormone that stimulates the production of melanocytes. It prevents damage to skin by ultraviolet rays.

Melanotan 2

This peptide is a cosmetic product that stimulates the production of melanin - the dark pigment, whereby the skin when exposed to UV light becomes brown and no red. Usage Melanotan 2 allows you to tan gradually, with minimal exposure to sunlight, which is especially useful for people with light skin.

Bremelanotide

Sexual arousal, which has been noted in people who first experienced the Melanotan 2, prompted the idea of ​​creating Bremelanotide. It does not act on the vascular and nervous system. Bremelanotide is the world's synthesized aphrodisiac Aphrodisiacs - cause desire where necessary .

The peptide GHRP 6

GHRP 6 - is a synthetic peptide consisting of six amino acids promote secretion of growth hormone. High levels of growth hormone in the blood associated with weight loss, increase in muscle mass, improving general health. Furthermore, it is expected that growth hormone has the ability to slow down the aging process.

GHRH

The peptide GHRH also promotes growth hormone Growth Hormone - Medicine will grow . Moreover, it stimulates the slow phase, Sleep Dreams: how to understand our dreams Contributing to the restoration of the body.

IGF LR3

This peptide also promotes the release of growth hormone; its use as an anabolic agent.

  Just imagine: the bloodstream sick person gets a perfect, almost intelligent device capable of self-reproducing, decision-making and complex manipulations. The size of the device is comparable with the magnitude of the virus or tumor cells - this means that the device is noticed and no misses. On the contrary, being close to the source of the disease, this wonderful mechanism can apply point, local strikes precisely in focus, without putting excessive load all the other organs and systems. A benefit of such a device for the purpose of research or diagnosis is impossible to overestimate.

In the broadest sense, nanotechnology - is the creation of functional systems at the molecular level. When Eric K. Drexler used the term "nanotechnology" in 1980, he spoke of a machine width of only a few nanometers - motors, robots and even computers much smaller than the cells. The next ten years, Drexler spent describing and analyzing these amazing devices and responding to charges of trying to pass off as science science fiction. As nanotechnology became an accepted concept, the term began to be used to refer to simpler technologies than those which Drexler wrote.

Richard Feynman, a Nobel laureate in physics, in 1959 he wrote: "I want to build billions of microscopic plants that mimic each other, who will work at the same time ... The laws of physics, as far as I can see, does not contradict the ability to control things at the atomic level. This is not an attempt to violate any laws; It is something that can be done in principle, but in practice is not done because we - too large ".

This vision of microscopic systems, Feynman is the basis of today's developments in the field of nanotechnology.

Until now, to create such plants failed, but if it happens, is likely to happen in the production of a new revolution, and its consequences will not necessarily be only positive. Discoveries in the field of nanotechnology have the potential to have an impact on the economy, environment and safety in the world.

Four generations

Today, advances in nanotechnology can be divided into four generations. The first generation are passive nanostructures - materials created to perform a specific task, such as aerosols and polymers. The representatives of the second generation of nanotechnology - active nanostructures can perform multiple tasks; These include a variety of sensors and medicines directed action. The third generation - a system of active nanosystems, which may have a variety of functions.

The fourth generation - molecular systems are supposed to now, there will be no earlier than 2015, and their only function is determined by opportunities offered by nanotechnology today.

The use of nanotechnology

• Medicine

Nanotechnology can make a revolution in medicine. For example, scientists are now working to create a nanoparticle size of molecules that will deliver drugs directly to diseased cells of the body. This method can greatly reduce the damage caused to chemotherapy Chemotherapy - it always falls the hair?   healthy body cells.

• Electronics

Thanks to nanotechnology, electronic devices are becoming more powerful, more comfortable - and smaller in size and weight.

• Food items

Developed that can quickly identify the nutritional variety of bacteria, such as salmonella Salmonella: unknown facts . In the near future may appear foods containing capsules can determine nutritional deficiencies in the body and provide the necessary vitamins and minerals. Moreover, there may be "interactive foods" that will change the flavor and color as desired person.

• Solar panels

Cheap solar panels take up very little space or, for example, organic solar cells, which will restore themselves to the extent necessary - all this may cease to be a fantasy in the near future.

• Batteries

Today, with the help of nanotechnology developed batteries that will work ten times longer than today's lithium-ion batteries.

• Water purification

The main objectives of nanotechnology in this field are the purification of water from industrial pollution, as well as the removal of salt from water and metal.