Greg Lackner Marian High School December 14 th, 2011 Chemistry After Marian: What’s out there?
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Transcript of Greg Lackner Marian High School December 14 th, 2011 Chemistry After Marian: What’s out there?
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Greg LacknerMarian High School
December 14th, 2011
Chemistry After Marian: What’s out there?
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The most common question…
“When am I EVER going to use this stuff?!”
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Chemistry teaches us how to think
vs. Math, History, Biology
Concepts Calculations Ideas
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An Education Road MapHigh School
(foundations)
College(general education)
Graduate, Medical or Professional School(Specialization in one field)
Industrial Scientist
Teacher orProfessor
Doctor or Professional Occupation
Industrial Scientist
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Chemistry In CollegeMyth: “You won’t take it if you don’t major in
chemistry”
Fact: Most people take at least some chemistry
Majors: Physical Therapy, Biology, Physics, Math, Psychology, Environmental Sciences, Recreation, Dietetics & Health,
All pre-medical, pre-dental, pre-optometry, pre-veterinary
Wouldn’t you want your doctor to be smart?
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College: General Education
General ChemistryOrganic ChemistryInorganic ChemistryPhysical ChemistryAnalytical Chemistry
Biological, Nuclear, etc.
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College: General EducationGeneral Chemistry
Orbitals
Lewis Dot Structures
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College: General Education Organic Chemistry
Morphine(Starting
Materials)
Synthesis
Reaction Design
+ +
“Cross-Coupling”Ei-ichi Negishi, Purdue University
Nobel Prize 2010
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College: General EducationInorganic Chemistry
Oxidation and reduction of metals4Fe2+ + O2
4Fe3+ + 2O2-
Hemoglobin: Needs iron to work!
…Why is carbon monoxide so dangerous?
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College: General EducationPhysical Chemistry
Fuel Cells
Alternative energy sources
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College: General EducationAnalytical
ChemistrySeparation and purification
Chemical identification
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Undergraduate Research Ask professors about research in their “groups”
(they love to talk about their own work)
Start looking ~ sophomore year (websites, professors)(even if you don’t want to go to graduate school)Why do it?
Nothing looks better on an applicationSmooth(er) sailing in graduate school Personal satisfaction, scholarships, etc.
Graduate students
Undergraduates
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My Undergraduate Research Professor Michael VanNieuwenhze
Pablo Garcia-Reynaga
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Dispelling the stereotype
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Background on Natural Products
Pacific Yew tree
1967: US National Cancer Institute program makes a discovery…
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Taxol
Component in chemotherapy treatments for many cancers
Problem: Need more than 1,000 trees to get a useable amount of taxol(Pacific Yew declared in danger of extinction in 2008)
Solution:
What if we could make taxol using chemistry?
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Patellamide A
Marine natural product-Found in sea sponge Lissoclinum patella
Shown to kill leukemia cells in mice and to “disable” other cancer cells in humans
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A disclaimer about cancer “cures”
Problem: “Selectivity”
“How do we make something that kills only the cancer cells while other leaving body cells unharmed?”
No obvious answer – We need your help!
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How we made Patellamide A
“Amino acids are the building blocks of proteins”
-How do animals (like us) make proteins?
Ribosome stitches together amino acids to make proteins
Ribosome
Amino Acids
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Patellamide A is 8 amino acids
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Making Patellamide A
Strategy:
• Buy amino acids from chemicals company
• Use chemical reactions to link amino acid chain together in appropriate order“biomimetic”
• Connect the ends of the chain to form the ring
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=
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Graduate School in Chemistry
Year Duties
First Take classes, begin researching, teach
Second Research, teach
Third Research
Fourth Research
Fifth Research
• Most programs are 5 year Ph.D. programs
• Application process is just like college• Graduate schools pay you to be there
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University of California, Irvine
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Mechanisms Class
• How do molecules interact during a reaction?
Why does it matter?• Learning about reactions helps you come up
with new ones!
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Substitution ReactionCH3Br + NaOH CH3OH + NaBr
CH3
Br
Na OH
δ-
δ+
+
-
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Spectroscopy ClassIdentification of unknown chemicals
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Spectroscopy Problem
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Spectroscopy Problem
OH?
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OH?
?
phenol
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Last minute advice!Don’t force yourself to decide on an
occupationwhile in high school!
Take as many new classes as you can!
Take physics in high school if you will see it in college!
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Thank you for your attention!
Questions?