Thursday, 29 July 2010

Nanotechnology In Cosmetics Products

Although you may not know the brand of cosmetics that you use for your face care contains ingredients with dimensions of nanoparticles (nanoingredients) able to penetrate your skin easily. What is nanotechnology? Nanotechnology is a field of applied science devoted to the control and manipulation of matter at a scale smaller than a micrometer ie the level of atoms and molecules (nano). Currently working on a range of one to one hundred nanometers (100-100 nm). Question of Size To get an idea of magnitudes we are talking about then are defined length units and establishing the relationships between them. The meter is the unit length of the International Unit System.

It is called: m. The millimeter is a unit of length equal to one thousandth of a meter. It is called mm. The micrometer is a unit of length equal to one millionth of a meter. It is called m and is also known as Micron (plural Latin micron). NM is the unit of length equal to one billionth of a meter. It is called nm.

1 nm = 1 x 10-9 m = 1 x 10-6 mm = 1 x 10-3 m 1 micron = 1,000 mm = 1,000,000 nm 1 nm 1 m = 1 billion m Although cell size is relation to its function, most eukaryotic cell has a diameter between 10 and 100 im (exceptions). Usually the size is constant for each cell type, independent of body size, ie, a kidney cell of a horse is the same order as that of a mouse. The difference in body size is due to the number of cells and not the size of them. Why Cosmetic manufacturers use ingredients with dimensions of nanoparticles in their products? Precisely because of its ingredients with small dimensions of nanoparticles can penetrate the skin and exert therapeutic effects. What is the Government Control of Nanotechnology? There is still no specific legislation controlling the use of nanotechnology in cosmetics and hygiene products. Nor are there sufficient studies on the safety of ingredients with dimensions of nanoparticles used in cosmetics. Of the few studies that have been done if it is known that nanoingredients through the skin and disappear. Still being studied, where they terminate. There is only the REACH legislation, current legislative framework for chemicals. Meanwhile, because the existing legal vacuum, cosmetics manufacturers including L'Oreal at the top continue to incorporate in its cosmetics and personal care ingredients with nanoparticle size. What ...? possibly be thinking. For only tell that by using cosmetic ingredients on the size of nanoparticles (nanoingredients) forget the "barrier effect" or the protection it provides your skin, because these nanoingredients could penetrate the skin without difficulty, reach the bloodstream, result in any organ or tissue of the body, and penetrate their cells without difficulty. It is also true that not everything is so simple, and that our body has mechanisms to neutralize foreign agents that may prevent the "invasion" of nanoingredients. But the truth is that nobody knows what might happen and what would be the effects on their health. In the end, you decide because you are solely responsible for their health. m

Jul 29, 2010 8:30:17 PM

NEXT POST
High Technology Precisely because we feel that transforms permanently, is nothing but a sensation that quickly becomes reality in our interior, the dominant ideology and empty today. In the last fifty years, the development of technology has changed the social life in all areas. More than any revolution of the past, or some new invention of the past. The technology extends through its marketing and is what is known as a "quiet revolution", changing habits, customs, labor relations, and personal and improves our health. Now, it happens a paradox. For example on health, there are better technical means to address illness or emergency, new technologies to operate and cure diseases that until recently were unthinkable, since the lung transplant, all that means cloning and stem cells. Through laser and other operations. But that same technology generates radiation, electromagnetic waves, pollution and other negativeness affecting the health, physical and mental, of the population. It was assumed that the technological would replace much of the work of humans, such is its meaning and essence, what we would have more time available. (A valuable related resource: Xcel Energy). What has happened is that the experience of time has accelerated, technology has set a faster pace, which coupled with the mentality of efficiency, drag and controls our lives. Atmos Energy : the source for more info. Instead of enjoying the new advances, we suffer. In any work time savings, thanks to new technologies, is 50% or more. a But there reduces the work time, but increases. For example in banking, resulting in overtime and off hours. In hours, and what is the early retiree is a large percentage of the workforce, but others take more time at work.
PREVIOUS POST
Science And Technology Science and technology future of societies in developing school culture. Science and technology must be applied and at the forefront of educational institutions, because that is where the future are the people who will be responsible to multiply the knowledge they have built and tested from the womb. Not only will you find that young people learn to use technology appropriately in educational institutions for educational, but also that teachers will provide a solid foundation that will contribute to progress and prepare them for work and social life. To reach these objectives is needed at first as teachers are prepared academically and methodologically to give their lectures. With these arguments it is worth making the following questions and analyze the depth of them: The state provides training through the secretaries of education courses for teachers on science and technology? Do spend money on training teachers to improve their teaching or to climb the educational ladder and improve your income? "Current students are better motivated with a master teacher or one who uses methods with technological resources? In its review of the literature on this topic, Bawden says that "technological literacy includes (among other characteristics): knowing what the functions of a technology, for example, the computer, choosing between their duties to find the application adequate to the task he faces in a given moment. To read more click here: Xcel Energy. Several studies have focused uses of technology, especially computer and Internet, to support the learning of reading and writing that contribute to good job performance. For example, Coiro explore: The particular characteristics of reading a web page and the difficulties that are presented to the reader who has to learn to respond to different types of hyperlinks within the text, which sometimes distracted from the main text, sometimes provided information...