Columbia University researchers have developed a new optical framework, HySIL (Hybrid Solid–Liquid Optics), that enables high-resolution 3D tissue imaging at a fraction of the cost and complexity of traditional systems. By using immersion liquid as an active optical component, the design allows affordable air-based microscope lenses to capture deep-tissue images, according to a study published today in the journal Nature Biotechnology.
How does HySIL change 3D microscopy?
The HySIL framework eliminates the traditional trade-off between image resolution and cost, according to Raju Tomer, a professor of biological sciences at Columbia. Standard “oil-immersion” lenses provide sharp images but are expensive and limited by shallow depth penetration. Conversely, cheaper air-based lenses can reach centimeters into a sample but typically suffer from blurring when imaging transparent tissues. HySIL solves this by pairing a curved solid lens with a precisely matched immersion liquid, creating a continuous optical system that functions regardless of the sample-preparation method, the researchers reported.
Most traditional pathology relies on thin, 2D slices of tissue on glass slides. The new HySIL technology enables 3D imaging, which allows researchers to view the entire tissue architecture, providing a more comprehensive look at disease markers.
What are the practical applications for laboratories?
The team demonstrated the technology using a modular device called SCOPE, which attaches to existing light-sheet microscopes, and a higher-resolution variant, Super-SCOPE. According to the study, these devices have been successfully used to map neural circuits in mouse, salamander, and cavefish brains. Additionally, the technology is being applied to lab-grown human brain tissues and intact human cancer biopsies. Jack Glaser, co-founder and CEO of MBF Bioscience and a co-author on the paper, noted that the system is designed to be used in daily operations by labs without specialized optics expertise.
Will this impact future AI diagnostics?
The scalability of 3D imaging is expected to accelerate the development of AI models for medical diagnosis. Hanina Hibshoosh, a professor of pathology and cell biology at Columbia University Irving Medical Center, stated that as AI tools analyze increasingly large amounts of tissue data, the ability to generate affordable 3D images will become vital for disease grading and prognosis. Tomer added that the framework is compatible with various imaging modalities, including confocal and two-photon microscopy, making it a versatile tool for future clinical datasets.
Frequently Asked Questions
What is the main advantage of the HySIL design?
HySIL allows inexpensive air-based lenses to achieve the resolution of high-end, expensive lab systems by using a custom immersion liquid as an active optical component.
Can this technology be used on existing microscopes?
Yes. The researchers developed modular devices like SCOPE that can be added directly to existing light-sheet microscopes. The framework is also designed to be compatible with confocal and two-photon imaging systems.
What types of samples can be imaged with this method?
The team has successfully imaged whole animal brains, miniature lab-grown human brain tissues, and intact human cancer biopsies, according to the research published in Nature Biotechnology.
If you are working in a resource-limited setting, look for the commercial version of this technology, known as SLICE, which utilizes the projector-based light-sheet microscope (pLSM) developed by the Tomer group.
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