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Nanotechnology is the future essay
Nanotechnology is the future essay
Nanotechnology is the future essay
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Report: Question: what are the potential health effects of nanomaterials? Introduction: nanomaterials are materials that have particles on a minute scale and cannot be seen by the naked eye. Materials are often classified as nanomaterials when their internal structures measure 100nm or less. These materials can form particles in the shape of tubes, rods or fibres. But how can these nanomaterials impact on people’s health. I will investigate and hopefully conclude that nanomaterials do have health effects on humans. This report will be focusing on experiments and data shown through 3 different human studies and using this information to conclude if there are any potential health effects from nanomaterials. Background information: As the world is advancing, there are many nanomaterials being produced and designed. Examples of nanomaterials include, carbon nanotubes, nanoparticles, metal rubber, …show more content…
Carbon nanotubes are used for a variety of industrial and biomedical applications including biosensors and drug carriers. - Nanoparticles: are a small object that behaves as a whole unit, they are classified according to size. Nanoparticles are being used to investigate wear resistance, scratch protection and blocking of light. Other applications include high ionic conductivity of materials and filter media. - Metal rubber: a self-assembled material that is flexible, indestructible material that can be heated, frozen and washed and can still retain its electrical conducting properties. Metal rubbers are used for many things including body armor, artificial muscles and flexible circuits. Each one of these examples of nanomaterials will form the 3 different human studies to prove if nanomaterials have health effects on humans and animals. If indeed the studies have proven that there are health effects, I will discuss what could be the cause of them and is there any similarities between all three
...ces in any of the blood variables measured nor in body weight or organ weight over the three different time periods. This finding led Anderson et. al. to conclude that chromium picolinate is not toxic at levels on a per kilogram basis even at several times the upper limit of estimated safe intake for humans (Anderson 273-9). On the other hand, a more recent study conducted by Speetjens et. al. in 1999 showed the chromium picolinate cleaves DNA. Chromium picolinate, if it is incorporated directly into a cell, is reduced by ascorbate and thiols into a hydroxyl radical that quite readily cleaves DNA – indicating that further research on the dangerous side effects of chromium picolinate are necessary to ensure its safe usage (Speetjens 483-7). Once again, it is evident that Stimulife 750 is not as harmless as it purports to be based on its ingredients.
...e materials at the nanoscale might include new form of nanobase toxicity. The individuals working with large quantity of nanomaterials need to take appropriate measures to avoid inhalation and ingestion. However, scientists have found silicon o be good for the construction of nanorobots because of its unique properties; durability, flexibility and conductivity. However, silicon cannot dissolve in body fluids. In addition, in medical applications biodegradability is going to be challenge due to the foreign particles inside the body and controlled mobility.
We use metals to construct all kinds of structures, from bridges to skyscrapers to elevators. The strength as well as durability of materials that are crafted out of metal make the materials ideal not only for construction but also for many other applications.
In the article “Pinpointing Cancer Fight,” Liz Szabo states the uses of nanotechnology and how researchers are attempting to use this advancement to fight cancer. She defines that nanotechnology is a type of technology that creates devices on an atomic level; this equipment can allow people such as researchers to use its ability to detect cancerous cells as well as treat them. Szabo remains a neutral tone as she states that while some are against the idea of using nanotechnology since there are many risks, others are optimistic that it may lead to transformational results. She presents a list of some products developed through nanotechnology and explains its usage in addition to mentioning the failure of those nanotech products. Szabo provides
Due to the varied properties and the scope of application which the CNTs possess, it is of paramount importance that CNTs are produced sufficiently at a competitive cost with the existing technology. The research over two decades, since the discovery of CNTs at Iijima’s Laboratory in 1991, has not helped in reduction of cost or production of CNTs of well-defined properties on a massive scale (Kumar, n.d.). This is mainly because of the complexity in the growth mechanism of CNTs. Extra ordinary properties and applications cannot be unleashed without the fundamental understanding of the growth mechanism of Carbon Nanotubes (Kumar, n.d.). There are several methods to produce Carbon Nanotubes in a laboratory setup. Some of widely used techniques include
It is clear that nanotechnology has the potential to revolutionize health care and even transport
It concerns all specialties of medecine, from pathology and oncology to cosmetic and reconstructive surgery.Currently, nanomedicine applications have been approved and are currently used for diagnostic procedures, body and organ imaging, surgical tools, drug delivery systems and gene therapies. [5,6]
Carbon Nanotubes could make t-shirts bulletproof. Retrieved March 11, 2014, from Nano Werk: http://nanowerk.com/spotlight/spotids1054.php. Fecht, S. (n.d.). Lighter, stronger bulletproof clothing. Retrieved April 8, 2014, from Popular Mechanics: http://popularmechanics.com/science/health/med-tech/6spidersilksuperpowers.htm.
...garette is harmful to the user, and bystanders around the user. Although, the vapor in eCigarettes was confirmed to not pose a threat to the user or anyone around, there are still holes in the study. The study didn’t include the effects of nicotine on the user, because they were ingesting it intentionally. According to many studies nicotine when ingested other than smoking has been shown to be low risk and without any disease causing potential. But, just like other stimulants like caffeine it may carry a slight risk of causing heart attacks, and strokes. Electronic cigarettes, tobacco substitutes, and nicotine replacement therapy products carry some risks. It was concluded that any risk from nicotine is so low, that it is similar to everyday hazards like drinking coffee, or nutrient deficient food, and it is extremely less risk than smoking tobacco altogether.
Nanotechnology is the manipulation of structures at nano levels. It uses incredibly small materials, devices, and systems to manipulate matter. These structures are measured in nanometers, or one billionth of a meter, and can be used by themselves or as part of larg...
HEALTH EFFECTS OF CRYSTALLINE SILICA EXPOSURE Description of Silicosis When workers inhale crystalline silica, the lung tissue reacts by developing fibrotic nodules and scarring around the trapped silica particles [Silicosis and Silicate Disease Committee, 1988]. This fibrotic condition of the lung is called silicosis. If the nodules grow too large, breathing becomes difficult and death may occur. Silicosis victims are also at high risk of developing active tuberculosis [Myers et al.].
American Chemical Society. "Carbon nanotubes twice as strong as once thought." ScienceDaily, 16 Sep. 2010. Web. 5 Dec. 2013.
The use of nanotechnology has become wide spread in the market place and, has found a place on the forefront of the technology world as the up and coming thing. Every day new technologies are being discovered, making things faster, bigger, stronger, smaller, and better. In this case, nanotechnology is making things smaller, on the molecular scale. A substance is considered a nanomaterial if it ranges between 1 to 100 nanometers. Therefore, nanotechnology is the engineering and manipulation of nanomaterial. Due to the size, the mass to surface area ratio results in the particles ability to be absorbed into major organs of the human body system. This fact could lead to monumental breakthroughs in the medical applications of nanoparticles like treating illnesses; however, nanotechnology is not without risks and is a largely unregulated industry. Many critics of the emerging nanotechnology say that the industry has many unregulated issues that need to be addressed. For instance, whether or not nanomaterial can be classified as a new substance or can be paired with an existing substance....
Nanotechnology is science, technology and engineering that is conducted at the nanoscale. The nanoscale is about 1 to 100 nanometres.
Scientists and health officials have been arguing the detrimental effects smoking has on our health for many years. Smoking can lead to serious complications including asthma, pancreas, lung and stomach cancer due to the large number of carcinogens (cancer causing chemicals) and other various substances added to it. It is a health hazard for both smokers and non-smokers and it is especially harmful to unborn babies. Although smokers claim that it helps them to relax and release stress, the negative aspects of the habit take over the positive. As it has been stressed by the scientists and experts, there are some very severe reasons of smoking but its crucial consequences should also be taken into consideration.