The heart muscle cells of this transgenic fish expresses GCaMP, a genetically encoded fluorescent calcium indicator. Visible is the wave of cardiac conduction, traveling over the heart from atrium (bottom) to ventricle (top left). The heart has a size of about 250 um and beats at a rate of about two times per second. It was imaged in 3D inside the living zebrafish using Selective Plane Illumination Microscopy (SPIM) (Huisken et al. 2004).
2012 Small World In Motion Competition

Honorable Mention
Beating heart of a living 2 day old Danio rerio (zebrafish)
Dr. Michael Weber
- Affiliation
- Max Planck Institute of Molecular Cell Biology and Genetics
Dresden, Saxony, Germany
- Technique
Selective Plane Illumination Microscopy (SPIM)
- Magnification
- 20x
Top 20
1st

Olena Kamenyeva
2nd

Stefan Lüpold
3rd

Nils Lindström
Honorable Mentions
HM

Andrew Dopheide
HM

Oleg Lavrentovich
HM

Kathryn Markey
HM

Maria Nemethova
HM

Phuong Anh Nguyen
HM

Heiti Paves
HM

Wim van Egmond
HM

Daniel von Wangenheim
HM

Michael Weber
HM

Fengzhu Xiong