Guess the Cover of American Laboratory—June/July 2013

Correctly identify this month’s cover image and be entered to win a $10 Amazon gift card (one entry per person; you must be 18 years of age to be eligible. See contest rules at

Hint: Throughout history, it has been used in baking and beer, and its promising role in the biotechnology industry is now on the rise. The image on this month’s cover was captured using SEM imaging, original magnification 50,000×.

What do you think it is? Enter by leaving your answer in the comments section below. Stay tuned for the answer and for next month’s cover image!