Revolutionizing Microscopy: Using Adapted Astronomy Techniques for Sharper Images

The field of microscopy has long been limited by the challenge of obtaining clear and sharp images, especially when dealing with thick biological samples that distort light. Traditionally, methods such as adaptive optics have been used to correct these aberrations, but they have been deemed complex, expensive, and slow, making them inaccessible to many laboratories. However, a recent study led by researchers at HHMI’s Janelia Research Campus has taken a revolutionary approach by adapting astronomy techniques to improve microscopy images.

The team of researchers focused on utilizing a class of techniques called phase diversity, commonly used in astronomy but relatively new to the life sciences. By adding additional images with known aberrations to a blurry image with unknown aberrations, they were able to unblur the original image, providing clearer microscopy images of biological samples. Unlike traditional adaptive optics methods, phase diversity does not require major changes to the imaging system, making it a more attractive option for biologists.

In order to implement this new method, the team first adapted the algorithm for microscopy and validated it through simulations. They then built a microscope with a deformable mirror and two additional lenses to introduce known aberrations. By improving the software for phase diversity correction, they were able to calibrate the deformable mirror much faster than with existing methods. Additionally, they demonstrated the effectiveness of the new technique by correcting randomly generated aberrations and obtaining clearer images of fluorescent beads and fixed cells.

Moving forward, the researchers plan to test the method on real-world samples, including living cells and tissues, as well as extend its use to more complex microscopes. Their ultimate goal is to make the method more automated and user-friendly, with the hope of making adaptive optics more accessible to labs of all sizes. By providing a faster and cheaper alternative to current techniques, this new method could revolutionize the field of microscopy, allowing biologists to see more clearly into the depths of tissues.

The adaptation of astronomy techniques for microscopy represents a significant advancement in the field of life sciences. By leveraging phase diversity methods, researchers have found a way to obtain clearer and sharper images of biological samples without the need for expensive and complex adaptive optics systems. As they continue to refine the method and expand its applications, the potential impact on microscopy research is immense. The future of imaging technologies in biology looks brighter than ever with this innovative approach.

Science

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