Notes: The Age
Age of Materials
Human civilizations are often divided into ages according to the materials
that dominate in the society. For example, in the Stone Age, when the tools were
largely made of stones, people used those si
Lecture 6 Notes: Practical Aspects of Single Crystal X-ray Crystallography, Part
X-ray diffraction was key to solving structures such as RNA and collagen. However, X-ray
crystallography of fibers is extremely difficult, because the fibers entangle rathe
Lecture 2 Notes: Chemical and physical properties of amino acids
Ribosomes are assembly lines found in humans, plants, algae and bacteria alike.
Polymerases are natural copy machines. They do not make mistakes often. They make 1
mistake per billion copyin
Lecture 4 Notes: Practical Aspects of Single Crystal X-ray Crystallography, Part
Next Tuesday: Guest lecturer on NMR.
Next Thursday: Guest lecturer on other characterizations
methods. Following Tuesday: Institute holiday!
Lecture 10 Notes: Biomineralization:
Bones and Teeth
Bones and teeth can be mineralized and fossilized. The insoluble calcium and bones and
teeth is held together with proteins, the crystal structure of which is not entirely known.
Read The Material
Lecture 9 Notes: Biomineralization and
Hands-on demo: observation of seashells.
Consider the many biological process evident from an abalone shell. The outside is covered
with barnacles: next time, well look at the chemistry of how
Lecture 8 Notes: Silk and its
Take-home midterm is out! You have almost 1 month to turn it in.
On question 10, you are asked to design a creative, novel material. In the past,
students have designed ingenious materials. Gradua
Lecture 7 Notes: Analytical Approaches and Instrumentation
Four nucleotide bases can combine in millions of combinations to make DNA molecules.
These are interpreted to make proteins with primary, secondary, tertiary, and quaternary