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biology articles imaging

Mitotic waves and gastrulation in a fly embryo

Last year I published a snapshot of a mitotic wave in a fruit fly embryo. Here’s the video of that same embryo going through cleavage (nuclei divisions) and gastrulation (cell movements): Mitotic waves What you see at the beginning of the movie are the cycles of synchronous nuclei divisions. They happen in waves from the […]

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notes biology imaging

Brachiopod larva in the Nikon Small World 2021

This image of a brachiopod larva was selected in the Nikon Small World 2021 photomicrography competition!

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imaging biology notes

A mitotic wave

A mitotic wave traveling through an early #Drosophila #embryo #FlyFriday

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imaging articles code

ImageJ macro to synchronize and combine image stacks

When I film embryos under the microscope, some will be younger and some will be older than others—they are never in perfect synchrony. This is fine when watching the recordings of individual embryos, but becomes an issue when you want to watch two (or more) embryos developing side-by-side. In my case, I want to identify […]

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biology imaging notes

The blastopore of bryozoan embryos

This is a bryozoan embryo exhibiting its blastopore. These animals are discreet but ubiquitous in oceans and lakes all over the world. What we see is the DNA inside the nucleus of the cells of the embryo. The color gradient indicates if the nuclei are closer (yellow) or further away (purple) from the microscope camera. […]

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biology imaging notes

Chubby ribbon worm

A chubby ribbon worm juvenile #Nemertean #WormWednesday

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biology imaging notes

Larva of a lamp shell

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biology imaging notes

Fruit fly embryo under lightsheet microscopy

A short video that I made about the embryonic development of the likeable Drosophila, also known as fruit fly or vinegar fly, won an honorable mention in the Small World in Motion. The details on the techniques I used and the video on its full resolution are available for download and re-use on the Wikimedia […]

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imaging biology notes

The surface of a brachiopod embryo

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imaging notes

A typical lightsheet microscopy session

Here is how a typical session of imaging embryos under Lightsheet Microscopy goes. A glimpse into my day-to-day work :) Assemble the incubation chamber: Collect and mount the embryos: Acquire a short timelapse from multiple angles: Transfer (lots of) data for image processing ;)