Nikon has named Ning Xu, an optical engineer at Tsinghua University in Beijing, as the winner of the 16th annual Nikon Small World in Motion competition. His winning entry is a super-resolution video showing the abnormal beating of airway cilia in a child with primary ciliary dyskinesia (PCD), a rare genetic respiratory disorder. The announcement places a highly technical imaging feat at the center of this year’s contest, which drew 346 video entries from 40 countries.
The competition, founded in 2011, is a spinoff of Nikon’s long-running Small World Photomicrography Competition, which began in 1974. Both are designed to showcase the beauty and complexity of things seen through the light microscope—one through still photographs, the other through photovideography, time-lapse imaging, and movies that take advantage of modern microscope cameras and computational imaging.
A Window Into a Rare Disease
Primary ciliary dyskinesia affects the tiny, hairlike structures that line the lungs and other parts of the body. In healthy airways, cilia beat in coordinated waves that move germs, mucus, dust, and other irritants upward so they can be expelled by coughing or sneezing. In PCD, that motion is abnormal or uncoordinated, leaving mucus and pathogens trapped in the airways and leading to chronic respiratory infections, sinusitis, and other complications.
Xu’s video captures this dysfunction at super-resolution, making the disordered ciliary motion visible in striking detail. The image caption from the competition describes it as “Abnormal beating of airway cilia from a child with Primary Ciliary Dyskinesia, a genetic disorder affecting respiratory function.” The result is both a scientific document and a visually arresting portrait of a disease that is often difficult to diagnose and treat.
“To showcase the beauty and complexity of things seen through the light microscope.” — Nikon’s stated mission for the Small World competitions
Why the Image Matters
PCD is a genetic condition that can be missed or mistaken for other respiratory illnesses because its symptoms overlap with asthma, cystic fibrosis, and recurrent infections. High-resolution imaging of ciliary motion can help researchers and clinicians understand exactly how the cilia are failing. That knowledge could support earlier diagnosis, better genetic counseling, and eventually targeted therapies.
The winning video also underscores how far microscopy has come. Super-resolution techniques can resolve structures below the classical diffraction limit, and video-rate imaging can track fast biological movements. Xu’s entry demonstrates that these tools are not only for fundamental cell biology but also for capturing the dynamic pathology of human disease.
Different Frames on the Same Story
Coverage of the award has emphasized different angles. Ars Technica focused on the technical and scientific achievement, noting Xu’s background as an optical engineer and the rarity of PCD. A Yahoo headline framed the broader contest as “Microscopic masterpieces,” highlighting the aesthetic appeal of the winning entries. A finance Yahoo headline stressed the clinical subject, naming the 16th annual competition and the child’s condition directly. The Scientist reported the announcement as a straightforward news item: Nikon announces the 2026 winners.
Together, those framings show how a single microscopic video can be read as art, as medical evidence, and as a milestone in imaging technology. Nikon’s competition has long straddled those worlds, rewarding images that are as beautiful as they are informative.
The Competition and Its Legacy
The Small World in Motion contest has grown alongside advances in digital imaging. Since its founding, it has attracted entries from scientists, artists, and engineers who use microscopes to record everything from developing embryos to chemical reactions. The 2026 edition attracted 346 video entries from 40 countries, according to Ars Technica. Nikon announced the full slate of 2026 winners, though the sources available here focus on the top prize.
For Xu, the prize brings international attention to Tsinghua University and to the field of optical imaging. For patients with PCD, it offers something else: a rare, vivid look at the cellular behavior behind their symptoms. And for the public, it is a reminder that some of the most compelling scientific stories unfold at scales far smaller than the eye can see.
- Winner: Ning Xu, Tsinghua University, Beijing
- Competition: 16th annual Nikon Small World in Motion
- Subject: Abnormal airway cilia in a child with primary ciliary dyskinesia
- Entries: 346 videos from 40 countries
- Parent contest: Nikon Small World Photomicrography Competition, founded 1974
The announcement cements Nikon’s Small World franchise as a rare venue where cutting-edge science and visual storytelling meet. As microscopy continues to advance, the competition will likely keep producing images that are both data and art—and occasionally, as with Xu’s winning video, a direct window into human disease.
