July 2011

Table of Contents

Cover Story

The Birth of Optogenetics

An account of the path to realizing tools for controlling brain circuits with light

By Edward S. Boyden

Features

Exosome Explosion

By Clotilde Théry

These small membrane vesicles do much more than clean up a cell’s trash—they also carry signals to distant parts of the body, where they can impact multiple dimensions of cellular life.

Best Places to Work Academia, 2011

By The Scientist Staff

Whether it’s attending a Scottish dance party or asking physics buffs to custom build your tools, researchers at this year’s top institutions are getting creative at work.

Departments

Editorial

New New Things

By Mary Beth Aberlin

Why we love our jobs—there’s never a dull moment.

Notebook

For Whom the Bell Tolls

By Cristina Luiggi

Eleanor Simpson on how dopamine helps rats learn and may lead humans to addiction

C-ing with the Lights Out

By Richard P. Grant

In the dark Arctic shallows one researcher finds heterotrophic marine bacteria doing a surprising amount of carbon fixing.

Trading Pelts for Pestilence

By Jef Akst

Researchers trace the evolution and spread of the tuberculosis bacterium back to the early fur trade in Canada.

Scientist to Watch

By Alison McCook

One of the researchers instrumental in constructing the fluid mosaic model of cell membranes is also a widely recognized authority on antique timepieces.

Speaking of Science

Speaking of Science

July 2011′s selection of notable quotes

Thought Experiment

The Scientist’s Amanuensis

By Peter Murray-Rust and Brian Brooks

A virtual lab—where all sorts of parameters are monitored and recorded—promises researchers a higher degree of reproducibility.

Modus Operandi

Smashing Crystals

By Richard P. Grant

A powerful new X-ray–generating laser is imaging smaller crystals than ever before.

Critic At Large

Desperately Seeking Radioisotopes

By Robert E. Schenter

New strategies are needed to address the current and future shortages of radioisotopes that threaten medical research and treatment.

The Literature

The Ninefold Ring

By Richard P. Grant

Editor’s Choice in Structural Biology

Thymus Finder

By Richard P. Grant

Editor’s Choice in Immunology

Probiotic Protection

By Richard P. Grant

Editor’s Choice in Microbiology

Reading Frames

A Scar Nobly Got

By Michael Willrich

The story of the US government’s efforts to stamp out smallpox in the early 20th century offers insights into the science and practice of mass vaccination.

Profile

Foresight

By Karen Hopkin

Studying the earliest events in visual development, Carla Shatz has learned the importance of looking at one’s data with open eyes—and an open mind.

Scientist to Watch

Harmit Malik: Viral Historian

By Megan Scudellari

Member, Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Age: 38

Lab Tools

How Green Is My Lab?

By Jeffrey M. Perkel

Doing science sustainably

Careers

Balancing Biases

By Jef Akst

How cognitive prejudices can influence research decisions, and how the pitfalls of human nature can be avoided

Capsule Reviews

Capsule Reviews

By Richard P. Grant

Solar, The Dark X, The Sky’s Dark Labyrinth, Spiral

Foundations

The First X-ray, 1895

By Hannah Waters

The discovery of a new and mysterious form of radiation in the late 19th century led to a revolution in medical imaging.

Contributors

Contributors

Meet some of the people featured in the July 2011 issue of The Scientist.

Multimedia

Learning Addiction

By Cristina Luiggi

Eleanor Simpson, a neuroscientist at Columbia University Medical Center, discusses a recent Nature paper that probes dopamine’s role in helping…

OPSINS: Tools of the trade

By Edward S. Boyden

The optogenetic toolset is composed of genetically encoded molecules that, when targeted to specific neurons in the brain, enable the…

Exosome Basics

Exosomes are small membrane vesicles secreted by most cell types. Internal vesicles form by the inward budding of cellular compartments…

Meet the Crystal Smasher

Take a tour of the Linac Coherent Light Source (LCLS), whose ultra-powerful X-ray beam is being used to solve the…

Best in Academia, 2011

By The Scientist Staff

Meet some of the finalists of this year’s Best Places to Work in Academia survey. Read the full story.

Optogenetics: A Light Switch for Neurons

By Edward S. Boyden

This animation illustrates optogenetics—a radical new technology for controlling brain activity with light. Ed Boyden, the co-inventor of this technology,…