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Essays about ethics of nanotechnology
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Likewise, this technology as transform the way scientists are treating patients in that nanoparticles allows medical professionals to perform gene delivery to individuals cells as well as to cancer cells. Gene delivery is basically the introduction of foreign DNA into cells. This technique is usually used in gene therapy in which scientists seek to correct a problem in the body by administering ‘drugs’ on the cellular level. In terms of gene delivery, scientist use nanoparticles to encapsulate the gene of interest that they would like to inject into the damaged or abnormal cells (Prabha, 531). When the gene, with the desired DNA strand, as been encapsulated, the nanoparticles are then injected either into the cells directly or through a specific body part in proximity to the target cells. By using this form of therapy, scientists seek to minimize the patient’s exposure to possible harmful effects as well as to high dosages. This is important in cancer treatment because it allows doctors to target the tumor and apply dosages to that specific target without exposing healthy tissues.
Another innovation that has helped in the revolution in the medical field is the application of biosensors. Biosensors are basically nanoscaled sensors engineered to respond to changes in the body. This technology has been applied to several biological mechanisms, a few of which will be highlighted. Of on the most recent application of the biosensor is the development of nanosensors that detect changes in the glucose levels for individuals with diabetes (Martis, et al, 71). This is revolutionary because it allows the individuals to know when their glucose levels are too high or too low or it alerts them even before that occurs so that they can take measu...
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...ne Therapy 19: 530-537. Web. 10 June 2014.
Selin, Cynthia. "Negotiating Plausibility: Intervening in the Future of Nanotechnology." Science and Engineering Ethics 17: 723-737. Print.
Schummer, Joachim. "Cultural Diversity In Nanotechnology Ethics." Interdisciplinary Science Reviews 31: 217-230. Print.
Syková, Eva, and Sarka Kubinova. "Nanotechnologies in regenerative medicine." Minimally Invasive Therapy & Allied Technologies 19: 144-156. Print.
Wright, JonPaul. "Nanomedicine: Small Particles, Big Concerns." University of Colorado Boulder. University of Colorado, Boulder Honors Journal, n.d. Web. 10 June 2014. .
Zhang, B.. "Recent progress in nanoethics and its possible effects on engineering education." International Journal of Mechanical Engineering Education 40: 1-10. Print.
It helps medics to find a direct genetic cause of the patient’s condition and target it with pharmaceutical or other therapies. The technology is used for the identification of DNA sequences that increase risks of current diseases and disorders; with this information carriers can start to make efforts to prevent them before the development of the problem. The video mentioned 200 actionable genes, structures that have direct links with a specific condition. Knowing about their presence, people have a chance to bring in preventive measures like taking anticoagulants in the case of identification of a thrombogenic gene. The technology led to the significant improvement of diagnostics and personalized treatments. It helped to find a rare, life-threatening mutation in case of Beery twins and assign a drug to a girl (Alexis) that returned her to a normal life. In the case of cancer genome sequencing led to the development of genetic drags, which target essential tumor genes and make malign structures to shrink. The video mentioned a product that works with the BRАF protein that induces cells to uncontrolled division; the drug led to the remission in the patient with metastasizing melanoma. Such treatment was effective in the case of cystic fibrosis. In the case of the breast cancer the technology helps to evaluate the aggressiveness of the condition and make a personalized decision about chemotherapy. The video also mentioned the pre-implantation genetic diagnosis – an early-staged technology that prevents the development of inherited disorders in
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?
Lovgren, Stefan. Can Art Make Nanotechnology Easier t Understand? 23 December 2003. Web. 3 May 2014. .
Either transduction or transfection can be used to get the therapeutic genes into the patients system. Transfection is when the genes are introduced physically or chemically in a way that allows the cell membrane to be temporarily permeable to a foreign DNA. In the second method used for gene therapy, transduction, there is a beneficial gene added into the genetic material of the virus, which then is allowed to infect the target cell which is the indirect transfer method for gene therapy.
Gene therapy is an experimental technique that allows doctors to insert a gene into a patient’s cell rather than using drugs or surgery. Gene therapy is a process of which defective or undesired genes in the body with “normal” genes. A vector is re-engineered to deliver the gene to a target cell. Then the gene is transferred to the cell’s nucleus and must be activated in order to function. The main focus of gene therapy is to replace a lost or improper gene with a new functional copy into a vector that is inserted into the subject’s genome by way of penetrating its DNA. Gene therapy can be done outside of the body known as ex vivo by way of taking cells form patients bone marrow or blood and then growing them in a laboratory. Thus the corrected copy of the gene is inserted into the cells before being put back into the body. Gene therapy can also be done in vivo which can be done directly to the patient’s body. The word gene therapy really defines the management of genetic information that is encased in the cells, however, in most recent procedures the available technology is closely related in adding new genetic information, and many researchers favor the term gene transfer rather than gene therapy to mirror the reason that the purpose of gene work cannot always be therapeutic.
Wang, K., Wu, X., & Huang, J. (2013, February 28). Cancer stem cell theory: therapeutic implications for nanomedicine. Retrieved December 12, 2013, from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589204/
Gene therapy is a relatively new concept owing mainly to our current knowledge of the human body and the relatively modern understanding of genetic coding and process. We now are able to better identify and understand the genetic causes of human ailments, and are just beginning to understand how to fix, replace, or eradicate the chromosomal basis for these issues; this is the concept of gene therapy. However logistically dealing with the small structure of genes, chromosomes, and DNA is not as easy as repairing a cracked wall or damaged water pipe, we are dealing with complex and microscopic materials that ordinary tools cannot deal with. Manufacturing such tools to deliver corrective DNA into affected cells within the body is just one of the obstacles that scientists and researchers are facing.
Gene therapy gives people who suffer from genetic diseases a chance to lead a normal life. Dangerous diseases, such as AIDS, SCID, Thalassemia and ADA can be cured successfully. In September 5, 2006, two people with advanced melanoma received Gene therapy and they got recovery soon. This is a breakthrough in cancer gene therapy. Gene therapy uses patients own cells to cure diseases, and, therefore, no rejection to their bodies. Furthermore, patients could get permanent cure from gene therapy without recurrence.
Rudolph, Frederick B., et al. (1996). Biotechnology: Science, Engineering, and Ethical Challenges for the 21st Century. Washington, D.C.: Joseph Henry P.
...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.
Ed. Carl Mitcham. Encyclopedia of Science, Technology, and Ethics. Vol 1. Detroit: Macmillan Reference USA, 2005. P182-283.
Unit 3 Essay Assignment It is not immoral to develop GNR technologies even with the risks Anthony Beaster A sufficient number of the arguments against GNR (genetic engineering, nanotechnology, and robotics) technologies rest on unintended consequence theory, morality, and ethics. Ignoring the first for now, morality is the manifestation of the overall belief of what is good or right by the majority at some instance in time and ethics are the rules based upon the present morals.
Sherlock, Richard. "Bioethics." Encyclopedia of Science, Technology, and Ethics. Ed. Carl Mitcham. Vol. 1. Detroit: Macmillan Reference USA, 2005. 193-200. Student Resources in Context. Web. 24 Mar. 2014. source 23
Nanotechnology includes nanorobots which are so small that they can be injected into the human bloodstream after which the nanorobots can do investigations or repair at cellular level. Nanorobots could optimize the delivery of pharmaceutical products, these means that medicines which are targeted on a specific type of cells can be delivered to only those cells by the nanorobots. The robots can attach to the cells after which they can inject the drug into the target cells. This could be a great breakthrough for cancer treatments such as chemotherapy because there is a minimal chance of injecting healthy cells with the drug and therefor negative side effects can be avoided.
Nanotechnology is science, technology and engineering that is conducted at the nanoscale. The nanoscale is about 1 to 100 nanometres.