But is it art? Brandeis University
Panel of artists…. and their art… Will the real artist please stand up?
Genetically-encoded Oscillator Period is ~120’ (two doublings) Time (minutes)
Electronics 101 Hartley Oscillator Colpitts Oscillator
1. Motivation why engineer biology?
1. Motivation why engineer biology? 2. Plan how to engineer biology?
1. Motivation why engineer biology? 2. Plan how to engineer biology? 3. Execution state of the art (stupid bacteria tricks)
1. Motivation why engineer biology? 2. Plan 3. Execution … because we can … because there’s so much to build … because there’s so much to learn
Genetically-Encoded Digital Logic “transfer function” time at 42°C transcript level 3’ heat shock promoter heat shock response gene
Heat Shock Response: 32 induction Straus, Walter, and Gross Nature (1987) 329: 347
Genetically-Encoded Logic Functions heat shock promoter heat shock response gene
Genetically-Encoded Logic Functions heat shock promoter repressor gene repressible promoter heat shock response gene
Genetically-Encoded Logic Functions heat shock promoter repressor gene repressible promoter heat shock response gene
Genetically-Encoded Logic Functions heat shock promoter repressor gene repressible promoter heat shock response gene X
Logic Functions Inverter inputoutput AND gate a b aboutput
Programming with DNA: hiding the details repressor gene repressible promoter Genetic Inverter Lambda cI, P22 c2, lacI, TetR… P RM, P R, P lac, P tet …
Programming with DNA: hiding the details repressor gene repressible promoter Genetic Inverter Lambda cI, P22 c2, lacI, TetR… P RM, P R, P lac, P tet …
Programming with DNA: hiding the details Genetic Inverter
Nature is source for code “Genetic Parts” Synthetic Biology: programming with DNA Make just about anything Logically combined in a cell
“There is a great satisfaction in building good tools for other people to use.” -Freeman Dyson Biology Engineering
“There is a great satisfaction in building good tools for other people to use.” -Freeman Dyson Biology Engineering “how can we help?”
“There is a great satisfaction in building good tools for other people to use.” -Freeman Dyson Biology Engineering “Cells are tiny machines” “OK then, build me a cell”
1. Motivation why engineer biology? 2. Plan 3. Execution
1. Motivation 2. Plan how to engineer biology? 3. Execution
1. Motivation 2. Plan how to engineer biology? 3. Execution …what foundational technologies are needed? …are safeguards needed?
Works of Art “A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.” -Freeman Dyson
well characterized predictable modular insulated stable Attributes for Foundational Technologies
well characterized predictable modular…. insulated stable Attributes for Foundational Technologies
225 basic parts 454 composite parts
Standard Assembly
Broadly consider two sources of risk 1. from the technology itself 2. from the people (hackers) who use it G. Church, “Let us go forth and safely multiply” Nature (2005) 438:423
1. Motivation 2. Plan how to engineer biology? 3. Execution
1. Motivation 2. Plan 3. Execution state of the art
1. Motivation 2. Plan 3. Execution state of the art …SB accomplishments …undergrad. contributions
Nature (2005) 434: 1130
A new kind of biofilm: “coli-roid”
conditionlacZresult lightlowlight color darkhighdark color Light Dependent Gene Expression Phytochromes from Synechocystis Osmoregulation system from E. coli LacZ reporter strain from literature (1979)
Light Dependent Gene Expression
Biofilm v2.0 mRFP conditionmRFPresult lighthighred darklownot red
1. Motivation why engineer biology? 2. Plan how to engineer biology? 3. Execution state of the art
Three comic strips to conclude Worst case scenario: total failure
Three comic strips to conclude Worst case scenario: total failure Best case: total success, are we ready?
Three comic strips to conclude Worst case scenario: total failure Best case: total success, are we ready? Biological Engineers, an oxymoron?
Credits Tom KnightDrew EndyRandy Rettberg
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