Brilliant choice of subject!
A dense bed of light-sensitive bacteria has been developed as a unique kind of photographic film. Although it takes 4 hours to take a picture and only works in red light, it also delivers extremely high resolution. The "living camera" uses light to switch on genes in a genetically modified bacterium that then cause an image-recording chemical to darken. The bacteria are tiny, allowing the sensor to deliver a resolution of 100 megapixels per square inch.
New Scientist Breaking News – Living camera uses bacteria to capture image
I love reading stories on how science keeps bringing new discoveries, 100 megapixels per square inch, thats a high resolution. Not sure how we will use this in the future.