The best medical and microscopic photo 2012
We bring you the photos of the winners of the contest "2012 Wellcome Image Awards", which will change your perception of our world. This competition selects the best photo in the field of medical and microscopic photography. Contest Sponsor - London Charitable Foundation "Wellcome Trust".
In this collection you will find everything - from an enlarged photograph of a moth to a macro photography of the human brain during surgery and caffeine crystals.
On this raster-electron micrograph you see a butterfly from the family of moth flies. The larvae of this insect live and grow in the domestic drain pipes: adults fly next to sinks, tubs and toilets. Most of the body and wings of a butterfly covered with hairs that give them a "disheveled" appearance. Length moth - 4-5 mm, and each eye is approximately 100 microns in width.
A micrograph mikrastery - such as green algae, also known as desmidy. Desmidy usually live in the acidic waters of the marshes. Specifically, this species represents flat tarelkopodobnye cells consisting of two mirror halves. Each half has one chloroplast - a place of photosynthesis, and the kernel occupies the center of the cell, where it joins the two halves.
Mikrasterii can reproduce asexually, by dividing into two (as a result there are two separate cells, each of which has one parent and one new polukletka); however, they can also be reproduced sexually, using a process known as conjugation, which includes transfer of genetic material between cells.
raster-electron micrograph of leaf lavender. Lavender essential oil extracts, which can be used in balms, ointments, perfume, cosmetics and preparations topical application. It is also used to sleep, relax and relieve anxiety. The surface of the sheet is covered with small hair-like outgrowths from epidermal cells, called non-glandular trichomes that protect the plant from pests and reduce evaporation. Also in the plant have glandular trichomes containing oil generated by the plant.
A micrograph of crystals of loperamide. Loperamide - it Antidiarrheal medication that slows the movement of the intestine and its contents. The food remains in the gut for longer and more water can effectively absorb back into the body. As a result, the chair more solid.
A fluorescent micrograph of the vascular system of the developing embryo chicken two days after fertilization. Using fluorescent dextran visible entire vascular system, through which the embryo is fed from the rich egg yolk inside. In the photo you can see the central chicken embryo surrounded by veins and arteries. The head of the embryo, including the brain and eyes, you can see at the top, just above the fetal heart. The long lower part - a future body of chicken, from which the legs and wings will be formed. At this stage of development of the embryo and the surrounding vascular system is a little less than 5 coins in a penny.
This is - an immature egg (oocyte) African clawed frog - a model organism that is used in cell research and developmental biology. Each oocyte is surrounded by thousands of follicle cells. Blood vessels, with oxygen oocytes and follicle cells are seen as red spots. Ovary adult female Xenopus laevis contains up to 20,000 oocytes. Mature oocytes adult about 1 to 2 mm in diameter - much more eggs of many other species.
Carapace of diatoms. Diatoms - unicellular organisms and a major group of algae. Diatoms are enclosed in a cage of solid silicon (shell) consisting of two halves. Shells have a variety of patterns, pores, spines and edges, which determine the genus and species. Diatomite - one of the most common species of phytoplankton, and they are often used to define different environmental conditions, for example, water quality.
"microneedles" from biorazlagaoschegosya polymer. Researchers have shown that these materials can be used for administration of the vaccine, and in the outer layers of the skin in a safe and painless way. Because the microneedles do not come in contact with blood vessels and nerve endings in the deeper layers of the skin, they prevent the transmission of pain and disease factors. In addition, since the introduction of the drug should be done quickly, it needs a minimum of practice, so that with the help of needles, patients themselves can enter it yourself.
The surface of the human brain of an epileptic patient in all its glory - with all the arteries and veins that supply the brain nutrients and oxygen. This photo was taken before the procedure intracranial recording using electrodes, during which the surface of the brain is attached to a flexible grating electrodes. The patient is then transported to the Department for telemetry, where he was examined and take notes within two weeks. Next, the surgeon examines the records and extracts the necessary information using unique numbers to determine the specific parts of the brain that need to be removed during the next operation. The owner of this brain fully recovered and no longer suffers from seizures.
The operation to remove the ventricular septal defect. Ventricular septal defect - a hole between the right and left ventricle of the heart, which is usually referred to simply as a "hole in the heart." Ventricular septal defect - a heart disease development. He can develop immediately after an injury, which can lead to a heart attack and can prevent the patient lead to a stable state, and may develop over time. It can be cured in different ways, depending on the effect to the patient. Treatment options vary from monitoring and conservative approach to open surgery, as in this case. In this photo you can see the bottom of the defect.
Connective tissue removed from a human knee during arthroscopic surgery.
tissue structures in a sheet of Arabidopsis thaliana seedlings. This specimen was fixed and dyed with propidium iodide. Scientists have used this technique to study cellular architecture in plants.
Bacillus subtilis - gram-positive bacterium, which can be found in the soil. Specific bacteria cell lines expressing different fluorescent proteins are initially mixed at nursery. With the growth of bacteria, they are organized in repeatable patterns and shapes that can be predicted by mathematical models. Examined took this picture in a project to create an artificial genetic circuit to obtain information about the colonies of bacteria and plant tissues.
raster-electron micrograph Caffeine crystals. Caffeine - a bitter, crystalline xanthine alkaloid that acts as a stimulant. Beverages containing caffeine - coffee, tea, energy drinks - is incredibly popular, and 90% of adults consume caffeine daily. In plants, caffeine acts as a protective mechanism. It is found in varying quantities in the seeds, leaves, and fruit of some plants and acts as a natural pesticide that paralyzes and kills certain insects feeding on the plants. The entire group of crystals is 40 microns in length.
Time-lapse shot of cancer cells during cell division (mitosis). DNA is shown in red and the cell membrane - blue. Cell line HeLa extends dividing step approximately every 16 hours. Part of the time the cell spends in preparation for division during interphase, and the cell division process takes about an hour. Cell in the center of the photo has completed its journey through the first half of mitosis (prophase and pro-metaphase), becoming round. Now she is ready to push the identical copies of DNA to opposite ends of the cell (anaphase). Then comes cytokinesis, when there is a membrane folding, and physical separation into two daughter cells.
In this photo occurs chemotactic behavior of cancer cells, photo made using a combination of phase contrast and epifluorescence microscopy. Chemotaxis, or directed movement of cells in the presence of low molecular weight gradient, is very important in the propagation of cancer from one body location to another. This process is known as the metastatic cascade. The cells in this photo - a human breast cancer cells. Cells were squeezed into macroscale channels to be able to examine a large number of cells moving with different concentrations of epidermal growth factor (indicated by green). This technique is used to study the structure of cells during chemotaxis, to help explain the complex process in the context of the spread of tumor cells. The channels are 12 microns wide by about 1/10 of the width of a human hair.