CHEM 101-01 Notes Aug 29
th
Envisioning Chemistry in our lives:
Chemical Imaging techniques in Medical Diagnostics:
Picture of Health
(examples of chemistry)
E.g. X-Ray, first one was late 1890- by Wilhelm Roentgen of his wife’s hand.
Alzheimer’s Disease
PET-SCAN (Positron-Emission Topography), positive electrons
MRI (Magnetic Resonance Imaging):
Development: Nuclear Magnetic Resonance--- Felix Bloch (1946), developed for
use in 1950-1970 NMR For use in MA (molecular analysis)--- NMR to MRI in
1971 for medical use. 1986-present: wide-spread use or MRI. MRI is the name for
the process NMR in medicine.
Prediction from chemistry lab: spectroscopy experiment
Chemical Imaging of Biological (Life) Systems
Biological structures “marked” with fluorescent proteins--- proteins attach to others of
same type and marked with color to create a color map.
3D imaging with X-Ray topography gives info about individual structures in biological
processes.
Biological Surfaces (beaches and grains of sand far away and close up image)
The surface of a protein crystal thought to play a role in multiple sclerosis created
with atomic force microscopy (AFM)
Advanced Materials: For Better Living
Includes special paints, Teflon, plastics etc.
The Milk We Enjoy
Is made possible by a chemical process called pasteurization developed by Luis
Pasture
Carbon Monoxide or Syanide--- chemicals that bind with Hemoglobin that bonds
stronger than Oxygen in the lungs and therefore deprives oxygen
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Chapter I, What is Science?
Overview:
Objects and properties
Measurement systems
Standard metric units and prefixes
The nature of science
The Scientific Method
Explanations and inverstigations
Models and theories
Laws and Principles, Science non-science and pseudoscience
Experimentation
Application and limitations of science
Observation, Hypothesis, Experimentation, Observatoin, Experimentation… theorize.
What is Science?
Science is a logical acquisition of knowledge of natural events through
observation and experimentation and the body of knowledge obtained thereof.
Note:
2 Types: Natural Philosophy and Moral Philosophy
Natural Philosophy became “natural science” and Moral Philosophy
became “Social Science”
Scientific Method:
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- Spring '08
- McQUIDDY
- Business, Science, International System of Units, tentative explanation, Science Modern Science
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