Nanotechnology: Advantages, Disadvantages, and Ethical Aspects
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Questions and Answers

What is a potential application of nanotechnology in medicine?

  • Improved body armor
  • Environmental monitoring
  • Targeted drug delivery for cancer (correct)
  • Food processing

    • What is a unique property of nanocrystals that makes them effective agents for selective targeting and destruction of cancer cells?

  • Optical properties
  • Surface roughness
  • Large particle size
  • Magnetic properties (correct)

    • What is the purpose of nanoplex biomarker detection in medicine?

  • To deliver targeted drugs to cancer cells
  • To create nanoscale TiO2 and ZnO particles for sunscreen
  • To develop improved body armor
  • To detect and quantify biomarkers in biological matrices (correct)

    • What is a potential application of nanotechnology in agriculture?

    <p>To improve crop yields and disease resistance</p> Signup and view all the answers

    What is the purpose of nanoscale TiO2 and ZnO particles in sunscreen?

    <p>To provide broad-spectrum UV protection</p> Signup and view all the answers

    What is a potential application of nanotechnology in the food industry?

    <p>To improve food safety and quality control</p> Signup and view all the answers

    What is a potential application of nanotechnology in sports?

    <p>To improve athletic performance and safety</p> Signup and view all the answers

    What is a potential application of nanotechnology in textiles?

    <p>To improve textile properties and functionality</p> Signup and view all the answers

    What is a potential environmental risk associated with nanoparticles?

    <p>They can contaminate water resources</p> Signup and view all the answers

    What is a potential social issue associated with nanotechnology?

    <p>The potential to widen social divides</p> Signup and view all the answers

    What is a potential risk associated with the use of nanotechnology?

    <p>The creation of 'grey goo'</p> Signup and view all the answers

    What is a potential ethical issue associated with nanotechnology?

    <p>The potential for technology abuse</p> Signup and view all the answers

    What is a potential health issue associated with nanotechnology?

    <p>The cost of nanodevices and nanosurgery tools</p> Signup and view all the answers

    What is a potential issue associated with the development of nanotechnology?

    <p>The enlargement of expectations</p> Signup and view all the answers

    What is a potential influence of nanotechnology on the health system?

    <p>The effect on the relationship between physician and patient</p> Signup and view all the answers

    What is a potential issue associated with the use of nanotechnology in developing countries?

    <p>The potential for technologies to bypass these countries</p> Signup and view all the answers

    What is the primary advantage of using nanoscale Al powder in propellants?

    <p>It increases the burn rate of the propellant.</p> Signup and view all the answers

    Which of the following is an example of a photocatalytic reaction?

    <p>Purifying water and air.</p> Signup and view all the answers

    What is the potential risk associated with the use of first-generation nanomaterials?

    <p>They pose toxicity risks to human health and the environment.</p> Signup and view all the answers

    What is the name of the fluid that hardens on ballistic impact, containing SiO2 nanoparticles?

    <p>Shear thickening fluid.</p> Signup and view all the answers

    What is the primary advantage of using nanotechnology in manufacturing?

    <p>It allows for more accurate and fast delivery of services.</p> Signup and view all the answers

    What is the potential negative impact of using carbon nanotubes?

    <p>They are as harmful as asbestos when inhaled.</p> Signup and view all the answers

    What is the application of Fe Oxide or Co-Fe Oxide in nanotechnology?

    <p>Magnetic recording tapes.</p> Signup and view all the answers

    What is the benefit of 'Molecular Scale Manufacturing'?

    <p>It ensures that very little raw materials are wasted.</p> Signup and view all the answers

    Study Notes

    Advantages and Disadvantages of Nanotechnology

    • Better performance of products compared to those made with conventional materials
    • Inhaled nanoparticles can cause health issues, such as pulmonary diseases
    • Nanotechnology can enlarge expectations and create unsubstantial estimations
    • Possible risks and unknown technical capacity of nanodevices and nanosurgery tools

    Ethical and Social Issues

    • The effect of nanotechnology on developing countries
    • The effect on the relationship between physician and patient
    • The problem of equality and definition of being a human
    • Undetermined employee security and potential risks to laborers
    • The problem of confidentiality and managerial issues

    Health Issues

    • The cost of nanodevices and nanosurgery tools
    • Unknown technical capacity of these devices and tools
    • Clinical applications of nanotechnological processes
    • The effect on the health system

    Applications of Nanotechnology

    Nanomaterials

    • Si or TiO2 nanoparticles embedded in epoxy matrix
    • SiO2 nanoparticles in a liquid polymer
    • Iron nanoparticles in inert oil
    • Carbon Nanotubes (CNTs)

    Photocatalysis

    • Photocatalytic reactions can purify water, air, surfaces, and fabrics
    • TiO2 nanocrystals/films

    Propellants

    • Nanoscale Al powder has higher burn rates

    Magnetic Recording Tapes

    • Use of Fe Oxide or Co-Fe Oxide
    • Indium Tin Oxide (ITO) for CRTs, photographic films, touch screens, and more

    Impact on Society

    • Positive impacts: smaller, cheaper, lighter, more functional, and easier to use products
    • Negative impacts: toxicity risks to human health and the environment

    Nanotechnology in Medicine

    • Potential applications: early diagnosis, targeted drug delivery, biomedical instrumentation, surgery, and health care
    • Future medical nanotechnology: nanorobots injected into the patient to perform treatment on a cellular level

    Drug Delivery and Disease Treatment

    • Potential to revolutionize cancer treatment
    • Nanocrystals can be effective agents for selective targeting and destruction of cancer cells

    Imaging and Diagnostics

    • Nanoplex Biomarker Detection
    • Silica-coated Surface Enhanced Raman Scattering (SERS) – active metal nanoparticles for biomarker quantitation

    Nanotechnology in Gene Therapy

    • Potential applications: gene therapy and treatment of genetic diseases

    Environmental and Energy Applications

    • Potential applications: environmental remediation, energy storage, and energy generation

    Nanotechnology in Agriculture

    • Potential applications: increased crop yield, disease resistance, and water conservation

    Nanotechnology in the Food Industry

    • Potential applications: food safety, packaging, and nutritional value

    Nanotechnology in Textiles

    • Potential applications: improved fabric properties, self-cleaning, and water repellency

    Nanotechnology in Sports

    • Potential applications: improved athletic performance, injury prevention, and sports equipment

    Nanotechnology in Cosmetics

    • Potential applications: sunscreen, skin care, and hair care

    Nanotechnology in Defense and Security

    • Potential applications: improved body armor, detection of hazardous substances, and explosives detection

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    Description

    This quiz covers the benefits and drawbacks of nanotechnology, including its impact on health and the environment, as well as ethical considerations.

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