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Published byLily Davidson Modified over 9 years ago
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The University of Arizona
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The A Team Students Patrick Hollinger Brian Heinze Josh Kittleson Tim Spriggs Tyler Brown Dan Reavis Kevin MacDow Carlos Chang Faculty Mark Riley Joan Curry
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The Watercolor Palette Goal: Create a color image utilizing bacterial fluorescence
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Pointilism/image/piesky
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Water color/Paintbrush
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Vision
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Implementation Overview Select three independent operons to control expression of three different fluorescent proteins. Apply inducers via a controlled mechanism to achieve maximum image resolution.
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2 Seconds of Operon Regulation
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Design: Switches and Lights Three independent operons regulate expression of three fluorescent proteins Lux Operator red fluorescent protein (mCherry) cyan fluorescent protein yellow fluorescent protein Tet Operator Lac Operator
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Design: Induction Details RegulatorTypeControlled By LuxRPositiveHomoserine Lactone (HSL) TetRNegativeAnhydrotetracycline (AHT) LacINegativeIsopropyl β-D-1- thiogalactopyranoside (IPTG)
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Some Assembly Required
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Parts Created
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Inducer Application Methods Pipette application Grown in inducers Inkjet Printer PDMS Stamp / Rapid Prototyping Mold
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Characterization Cells Grown and induced Fluorescent microscopy Bright Field Microscopy
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Inducer added to lawn
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Cultures were grown on LB + amp in inducer concentrations ranging from no inducer to 10,000x Km
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Images 1
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Images 2
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Results No quantifiable or observable difference between induced and non-induced bacteria Single colonies exhibited strong fluorescence in yellow, weak in m-cherry and very little to none in cyan.
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A New Plan Revisit intermediate constructs Two strains of cells Constitutive expression One for each ‘color’ Place cells with inkjet printer
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Inkjet Printer Replace ink with cells Print onto transfer paper and ‘stamp’ media
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Results
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Rapid Prototyping Stamp Machine generated ‘negative’ image PDMS stamp is made [insert picture of PDMS]
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RP Results
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Conclusions This Week Mucho Printo Last day to print Weds Imaging Thurs
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Acknowledgements Thanks to our sponsors and supporters: Dr. Raina Maier Dr. L. Sandy Pierson (he is in charge of the Koffler lab) Dave Bentley Koffler people (list them) Dr. Vicki Chandler (and her 2 techs who helped train) Karen McGinnis and Lyuda XYZ Dr. Jay Hoying
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