chapter  19
6 Pages

Directed.Evolution.of.Proteins.for.Device.Applications

Protein-based.photonic.devices.gain.comparative.advantage.from.the.unique.properties.of.proteins,. and.the.fact.that.nature.has.optimized.many.proteins.for.the.efficient.conversion.of.light.to.structural.changes..Additional.advantages.derive.from.the.fact.that.many.proteins.produce.a.voltage,.a. current,.or.a.change.in.polarizability.in.response.to.light.absorption,.and.carry.out.this.function.with. a.high.quantum.efficiency.and.speed.[1]..More.recently,.investigators.have.been.approaching.the.use. of.proteins.in.device.applications.from.the.perspective.that.nature.has.provided.a.template.for.optimization.rather.than.a.material.with.optimal.properties..This.view.is.made.possible.by.significant. advances.in.genetic.engineering.and.the.use.of.techniques.such.as.directed.evolution..The.combination.of.in vitro.genetic.diversification.with.tunable.selective.pressures.has.enabled.investigators.to. tailor.biological.macromolecules.for.electronic.and.photonic.device.applications.[2-5].