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Uses of nanotechnology
Advantage of nanotechnology
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Nanoparticles are so small in size that they can enter cells and organelles to interact with DNA, proteins, enzymes while circulating throughout the body. Therefore, nanotechnology is used in detecting disease in a very small volume of cells or tissue [1].As mention above; commonly used nanoparticles are such as, gold nanoparticle, silver nanoparticle, quantum dots and magnetic nanoparticle. Gold nanoparticles have unique stability against oxidation which makes it useful in diagnostic. Its benefits such as much reduced or no toxicity, much better contrast agents for imaging, and surfaced-enhanced and distance- and refractive index dependent spectroscopic properties compare to other nanoparticles, makes it the best choice of selection for enabling early diseases detection [2,3].
The use of nanoparticles for the detection of experts is a topic of interest that is being passively discovered for many applications [4]. Firstly, the capability of a nanoparticle to identify a tissue of interest is perhaps the most potential abilities in nanotechnology. Nanoparticles are used in selectiv...
Amandi Hiyare: Before forming my research question, I had a discussion with my research project coordinator “Lisa Pope” who told me that the Flinders nanotechnology research team has been developing microbial catheters. Then on Monday I had an interview with Professor Joe Shapter who told me that your team was leading this project. So I was wondering whether you would be able to provide me with some detailed information about this innovation?
In the novel, Prey, written by Michael Crichton it pertains to the subject of nanotechnology throughout the whole entire book. The main characters of this novel are the
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
They have a larger surface area in proportion to their volume. This enables them to interact with different types of biological systems and provides a wide variety of possibilities (Nuruzatulifah, Nizam, & Ain, 2015). The nanoparticles can be seen by transmission electron microscopy (TEM). When there is one nanoparticle, it is called a primary particle. When there is more than one, it is called a secondary particle. In order to measure these particles, they need to be suspended in a solution (Pruneanu, Coros & Pogacean, 2015). Dyed nanoparticles or internally fluorescent nanoparticles barely interact with cellular proteins which is what the study requires. They are also quite easy to manipulate. They can be easily internalized into cells and can be programmed to go to specific sites (Wolbeis,
[24] Chen PC, Mwakwari SC, Oyelere AK. Gold nanoparticles: from nanomedicine to nanosensing. Nanotechnol Sci Appl 2008; 1: 45–66.
Nanomedicine is offering incredible and innovative therapies like cancer nanomedicine, nanosurgery, and tissue engineering. In cancer nanomedicine, they use “targeted drug delivery” to target the tumor itself and avoid harming the normal, healthy cells (Berger, 2017). This in return, offers a more effective treatment with better outcomes and less side effects. In cancer nanomedicine, nanoparticles are used as tumor destroying mediators that use high temperatures to destroy them. These nanoparticles have to be injected into the tumor, then they have to be activated to produce this heat and then they are destroyed via a magnetic field, X-rays, or light (Berger,
...nessing “the power of nanotechnology” to radically change the way we diagnose, treat, and prevent cancer.” The most likely method implemented will by the use of nanovectors for targeted delivery of anticancer drugs, and then heating nanoparticles that are attached to cancer cells so that the cancer cells explode. (5, 9) There are still many obstacles that must be overcome before this is a reality: from the ethical concern by some that nanobots will take control of the body to the more practical problem that this method of treatment will be very expensive and funding will be an issue. (6) But with millions of people suffering from some form of cancer, scientists are searching for cures and treatments and nanotechnology offers the greatest promise. One day, cancer may be completely curable thanks to nanotechnology which is something everyone would benefit from.
...roduce stable electrically conductive bio-nano-composite tissue materials that have been used as temperature sensing elements. This is an exciting new area of scientific discovery. I am eager to read more about the benefits and possibilities that exist with this new biotech process.
Gold has long been used within the human body for many surgical treatments. Due to the chemical nature of gold, it does not readily react with other compounds inside the human body and is not damaging to the surrounding cells. Furthermore, it will not corrode or break down because it does not interact with oxygen. This allows scientists to implant gold nanoparticles within cancerous cells in preparation for treatment. After injecting the nanoparticles, which are smaller than a red blood cell, they begin to accumulate within the rapidly-growing cancer cell, where they wait until further treatment.
Nano-technology is a revolution in almost all disciplines of life today. Nanotechnology approaches the manipulation of matter at atomic and molecular level. This technology, which deals with matter in nano-dimensions, has widened our views of poorly understood health issues and provided novel means of diagnosis and treatment. Dentistry, not being an exception, also faces major revolutions to constantly provide better and more comfortable dental care to patients. Researchers in the field of dentistry have explored the potential of nano-particles in existing therapeutic modalities with moderate success. The important application in the field of dentistry
In case of nobel metal nanoparticles (NPs) tipped semiconductor quantum rods; Liang et al.1 represents a facile method for synthesis of Au-AgCdSe hybrid nanorods (NRs) through the deposition of silver (Ag) tips at the ends of Au NRs as a seed solution, followed by selenization of the silver (Ag) tips, and overgrowth of CdSe on these sites.1 This is method has been carried out by controlling the pH value.1 Das et al.2 demonstrate a method to fabricate Au decorated CdSe nanowires (NWs) based on the wet chemical method 3-5 to be employed as surface enhanced Raman spectroscopy (SERS) substrates.2 In this synthetic route, the Au NPs prefer to nucleate on lattice defects at the lateral facets of the CdSe NWs, which have a great effect to obtain a homogeneous distribution of Au NPs on the nanowire.2,5 Bala et al.6 demonstrated an effective procedure based on phase transfer between the aqueous and organic media in order to form Au tips on cadmium chalcogenide NPs and NRs. This phase transfer process can be achieved in presence of organic ligand which act as phase transfer and reducing agent for Au3+ ions.6 Salant et al.7 modified a hybrid metal-tipped semiconductor nanorods system known as nano-dumbbells, and used the gold tips as an anchor points for self-assembly using simple thiol molecules.7 I...
He uses gold particles as a diagnostic tool. This method allows for test procedures that are non-invasive and do not involve exposure to radiation. The patient simply gargles with a mixture that includes nanoparticles of gold, which paint the cancer cells. It has been tested on animals, where it has proven to be effective in the detection of various cancers.
Its history is long and successful. Additionally, its sensitivity and simplicity, spatial and temporal resolution have all played a part in its importance that has led to its persistence as the gold standard in disease detection (Kiernan, 1999; Boekelheide, K. & Schuppe-Koistinen, I. 2012)
Science in the ancient world was a complex concept. There was a varied, and at times mixed, emphasis on the mythical, or theoretical, and practical components of science, depending upon where the “science” was practised. Theoretical science, as described by Peter Dear, is abstracted practice, while practical science is applied theory. Whilst, the ancient Greeks generally placed more emphasis on theory, the ancient Egyptians generally took knowledge and applied it in a practical manner.
I have chosen nanotechnology as my topic area of choice from the food innovation module.