Archive for Biochemistry
The molecular structure of water
Is there something seemingly simpler than the water? Despite its apparent simplicity this we know so well fluid is complex and still not well understood. Water is endowed with some exceptional properties physical, chemical which constitute its specificity. As demonstrates this article, the structure microscopic liquid water, which is in based on these properties, is [...]
Photocatalysis, a solution to air pollution
It has developed building materials that with the addition of a light titanium dioxide layer these are capable of diminishing the pollution. The contamination that exists in the lower layers of the atmosphere in the cities, is generated by oil and particles floating in the air due to poor combustion in cars, industry and heating. [...]
The extraterrestrial origin of life on Earth
A group of scientists published a study that reveals the existence of basic molecules of DNA and RNA in meteorites found in Antarctica. There are multiple theories that attempt to explain how did life appear on Earth. The Legion Paleontologists and scientists working to recreate the puzzle of the species ancestor by ancestor, piece by [...]
Matches and alchemists in search of fire
Fate sometimes has led to discoveries or inventions surprising unusual. This is the case of matches, also called phosphors, or mixed. The origin of matches dating back to the old man’s desire to make fire. The ability to create fire has troubled human beings since ancient times, since it depended for heating, cooking, lit in [...]
Peculiarities of the enzymes
All living things have chemicals that are involved in multiple cellular processes, some of these substances are enzymes. The catalysts of biological reactions are known by the name of enzymes, biological catalysts or biocatalysts, formerly called ferments. Enzymes are proteinaceous compounds are produced intra-and extracellularly and are essential for all metabolic processes of living organisms. [...]
Restriction Of Hazardous Substances: Cadmium And Hexavalent Chromium
Hexavalent chromium compounds and Cadmium are two of the six substances subject to restriction under the European Restriction on Hazardous Substances (RoHS) directive. Environmental assessment and screening for RoHS compliance in Europe (and CA), relying today on the industry standard XRF technology, tests electrical and electronic appliances for dangerous substances, and this includes Hexavalent chromium. [...]
