2012 Photomicrography Competition

Long fluorescent ribbons constructed from thousands of semiconducting quantum dot nanoparticles, which are about 10,000x smaller in diameter than a human hair

Jonathan Pham Catherine Russell

Affiliation
University of Massachusetts, Amherst
Materials Research Science and Engineering Center
Amherst, Massachusetts, USA
Technique
Fluorescence
Magnification
10x

Membranipora sp. (a bryozoan found on seaweed and kelp)

Dr. Bruno Pernet Dr. Russell Zimmer

Affiliation
California State University, Long Beach
Department of Biological Sciences
Long Beach, California, USA
Technique
Stereomicroscopy (image processing in Photoshop)
Magnification
20x

“The colony of animals was growing on kelp, and Dr. Russell Zimmer, a bryozoan expert, showed me how to section the seaweed so that one could turn a “strip” of the colony on its side in a drop of seawater and photograph it with the feeding tentacles (the lophophore) extended.” - Bruno Pernet

Transgenic (Ly6a-GFP) mouse embryo

Dr. Amanda D. Phillips Yzaguirre Dr. Nancy Speck

Affiliation
University of Pennsylvania
Department of Cellular and Molecular Biology/DSRB
Philadelphia, Pennsylvania, USA
Technique
Confocal
Magnification
10x