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Colloidal Nanoscience Notes
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Chapter 1 Notes: Nano Art
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Untitled
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Chapter 7: Biodiversity, the Healthy Society, and the Debatable Issues of the 21st Century Good Health is a condition of being away from illness and diseases not just physically but also emotionally, mentally, and spiritually. Having good health is dependent on many factors including economic status and environmental conditions. Health is an indicator of sustainable development and the most basic human right.Biodiversity refers to the variety of life forms, not just rare and endangered forms of life, nor just big and attractive animals and plants. It includes every living thing- the common, the ordinary, the ugly, and even those organisms invisible to the naked eye. It also refers to more than individual specie. It includes the genes they contain, and the ecosystem and habitats of which they are part of. Biodiversity is the foundation of human health. The conservation and sustainable use of biodiversity can provide significant benefit to health. The relationship between biodiversity and human health is extensive and complex simply because the conservation and sustainable use of biodiversity have positiveimpacts on human health. The continuing loss of biodiversity on global scale represents a direct threat to health and well-being. A healthy global environment is capable of supporting a diversity of life. (World Health Organization, 2010). Biodiversity is an essential element for supporting life on earth. The condition of the natural environment depends entirely on the continuing diversity. If one species is lost from the ecosystem, all of the other species in the ecosystem are affected. The loss of these life forms could affect the entire ecosystem governing the environment. According to the World Health Organization there are major threats to biodiversity that are identified by the United Nations Environmental programs and they are as follows: 1) habitat loss and destruction, 2) alterations in ecosystem composition, 3) over exploitation, 4) pollution and contamination, and 5) global climate change. It is therefore important toproperly administer agricultural productivity and sustainable use of natural resources. Biological diversity also ensures clean air, water, and fertile soils for sustainable development. Aside from the promise of a better health foods and restoring healthier condition of the natural environment, there are other debatable issues of the 21st century such as the biotechnology, GMOs, the nano technology, gene therapy, and climate change. A. Biotechnology Biotechnology aims to help professionals in managing, conserving, and using plant genetic resources for food and agriculture. Biotechnology uses biological systems, living organisms, or derivatives thereof to make or modify products or processes for specific use. Particularly, it aims to develop new development precision tools and diagnostics; speed up breeding gains and efficiency; develop pest and disease resistant crops; combat salinity, drought, and problems of agriculture; enhance the nutritional quality of food; increase crop varieties and choice; reduce inputs and production cost; and increase profits (Bragdon et al., 2005). The book, “Managing Innovation in Biotechnology” reported in 2006 that for more than two decades, the biotechnology sector experienced an important growth because it is a dynamic business with many challenges in new product developments to improve the quality of life of humans and animals. The company develops a new method for selling its products in the market and granting licences and patents to other companies. There are two important lines of research for bio-technology that gives profits, 1) the DNA (Deoxyribo Nucleic Acid), and 2) genetic engineering. Genetic engineering is a technique that allows genes and DNA to be transferred from one source to another. This leads to the production of living modified organisms (LMOs) or genetically modified organisms (GMOs). Some of the advantages of biotech are: 1) Reduce pollution and waste; 2) Decrease the use of energy, raw materials and water; 3) Lead to better quality food products; 4) Create new materials and biofuels from waste; and 5) Provide an alternative to some chemical processes. B. Genetically Modified Organisms (GMOs) The World Health Organization defines GMO as an organism, either plant, animals, or microorganism in which the genetic material (DNA) has been altered in a way that does not occur naturally by mating or natural recombination. The development of GMOs was perceived to help in the advancement of science and technology for the benefit of human beings. It also aims to address the issues of food security, agriculture, drug production, and nutrition. GMOs are known as transgenic organisms because this process involves the transfer of genes. The Center for Ecogenetics and Environmental Health (CEEH, 2013) identified the characteristics of GMOs in food and agriculture: 1) pest resistance, 2) virus resistance, 3) herbicide tolerance, 4) fortification, 5) cosmetic preservation, 6) increase growth rate, 7) flower production, 8) paper production, 9) pharmaceutical production, 10) bioremediation 11) enzyme and drug production, and 12) medical treatment. Research studies revealed some conflicting arguments such as whether consumption of GMOs crops is beneficial or harmful to human health. There are also counter arguments either opposing health risk claims or suggesting that GMOs provide more benefits than harm. However, the most notable GMO risks to human are the potential development of allergens and toxicity from GMO related crops. Studies also show that GMO crops potentially increase the nutritional value of foods. Here are some of the benefits and risks of GMOs by Serafica et al., 2018.
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Nanotechnology Essentials Summary
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CDT-19
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NANOPARTICLES
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Nanotechnology Notes
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Molecular Behavior and Diffusion
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