Scientists created this picture of the Mona Lisa using genetically modified E. coli bacteria. Such teeny little artists!
The Italian researchers weren’t just playing around with bacteria for fun. Rather, they were attempting to unite different attributes so they could control large populations of bacteria—perhaps to one day build microscopic transport devices, or even 3D print using bacteria.
“I think it’s an interesting proof of concept of possibly using bacteria as bricks to build structure on the microscale cheaply and easily,” study author Roberto Di Leonardo from the Sapiezna University of Roma told Gizmodo.
The researchers spliced the proteorhodopsin-producing gene into the bacteria. Then, they replaced a projector’s lens with a microscope lens in order to project images onto a stage that held the bacteria, two micrometers per pixel. The researchers knew that slower-moving bacteria receiving less light would clump together, while faster-moving ones receiving more light would move farther apart. The clumping patterns would create the resulting image, where regions of more bacteria appear white and regions of less bacteria appear black. The researchers shone negatives in order to create the images.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.