24 Questions
What is a potential application of nanotechnology in medicine?
Targeted drug delivery for cancer
What is a unique property of nanocrystals that makes them effective agents for selective targeting and destruction of cancer cells?
Magnetic properties
What is the purpose of nanoplex biomarker detection in medicine?
To detect and quantify biomarkers in biological matrices
What is a potential application of nanotechnology in agriculture?
To improve crop yields and disease resistance
What is the purpose of nanoscale TiO2 and ZnO particles in sunscreen?
To provide broad-spectrum UV protection
What is a potential application of nanotechnology in the food industry?
To improve food safety and quality control
What is a potential application of nanotechnology in sports?
To improve athletic performance and safety
What is a potential application of nanotechnology in textiles?
To improve textile properties and functionality
What is a potential environmental risk associated with nanoparticles?
They can contaminate water resources
What is a potential social issue associated with nanotechnology?
The potential to widen social divides
What is a potential risk associated with the use of nanotechnology?
The creation of 'grey goo'
What is a potential ethical issue associated with nanotechnology?
The potential for technology abuse
What is a potential health issue associated with nanotechnology?
The cost of nanodevices and nanosurgery tools
What is a potential issue associated with the development of nanotechnology?
The enlargement of expectations
What is a potential influence of nanotechnology on the health system?
The effect on the relationship between physician and patient
What is a potential issue associated with the use of nanotechnology in developing countries?
The potential for technologies to bypass these countries
What is the primary advantage of using nanoscale Al powder in propellants?
It increases the burn rate of the propellant.
Which of the following is an example of a photocatalytic reaction?
Purifying water and air.
What is the potential risk associated with the use of first-generation nanomaterials?
They pose toxicity risks to human health and the environment.
What is the name of the fluid that hardens on ballistic impact, containing SiO2 nanoparticles?
Shear thickening fluid.
What is the primary advantage of using nanotechnology in manufacturing?
It allows for more accurate and fast delivery of services.
What is the potential negative impact of using carbon nanotubes?
They are as harmful as asbestos when inhaled.
What is the application of Fe Oxide or Co-Fe Oxide in nanotechnology?
Magnetic recording tapes.
What is the benefit of 'Molecular Scale Manufacturing'?
It ensures that very little raw materials are wasted.
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
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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