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tag reader satisfaction developmental biology

Guts and Glory
Anna Azvolinsky | Apr 1, 2016 | 9 min read
An open mind and collaborative spirit have taken Hans Clevers on a journey from medicine to developmental biology, gastroenterology, cancer, and stem cells.
Beyond Film: Laboratory Imagers
Jorge Cortese | Apr 1, 2002 | 9 min read
Years ago, researchers had only one data-imaging option: autoradiography. These scientists tagged samples—whether nucleic acid, protein, cell, or tissue—with radioactive labels, and captured images on film. Safety concerns, convenience, and sensitivity, spurred the development of alternative techniques, and today, researchers can choose from a range of options, including fluorescence, chemifluorescence, and chemiluminescence, in addition to autoradiography. Fluorescence occurs when
Untangling Neuronal Calcium Signaling
Amy Adams | Jan 20, 2002 | 10 min read
From the very moment of conception, calcium plays a pivotal role in fetal development. It rushes in as a wave around the egg to herald the sperm's arrival, binding to proteins that help kick off the whole developmental process. From this first influx, calcium continues to play a critical role in how the body's cells respond to outside signals. Calcium tells muscles to contract and nerves to release neurotransmitters, and is at least part of the signal that helps people form and retain memories.
Research Notes
Nadia Halim | Sep 3, 2000 | 5 min read
Stopping Ebola in Its Tracks Richard Preston brought the threat of emerging infectious diseases to the consciousness of his readers in The Hot Zone. The book graphically describes how the Ebola virus causes massive internal bleeding, which kills up to 90 percent of the people it infects. Now National Institutes of Health scientists are making promising advances to stop disease spread. Researchers have identified a viral protein that destroys endothelial cells, the cells that line the blood vess
Pursuing Proteomes
Deborah Wilkinson | Jun 11, 2000 | 9 min read
Bio-Rad's PROTEAN® IEF System provides 2-D electrophoretic separation as part of the ProteomeWorks System Australian postdoctoral fellow Marc Wilkins coined the term "proteome" in the mid-'90s, referring to the total set of proteins expressed in a given cell at a given time. The term took hold, and a new scientific discipline was born. In proteomic studies, all the proteins from a given cell, organelle, or tissue are analyzed simultaneously with respect to properties such as expression leve
Assessing Differential Gene Expression
Barbara Cunningham | Nov 25, 2001 | 9 min read
As the complete human genome sequence emerges, research shifts from questions of genomics to those of proteomics--determining the function of individual gene products and mapping global gene expression patterns. Gene expression patterns change continually during the course of tissue development and differentiation. The expression of different gene products at any given time within a particular cell defines the cell's characteristics and helps determine how it will react to external stimuli. Alte
Building a Better Biosensor
Mike May | May 23, 2004 | 8 min read
A GRADIENT OF PORE SIZES:Courtesy of Michael J. Sailorimparts a rainbow of colors to a porous silicon chip, one of a variety of new biosensor technologies in development around the world. The different colors correspond to different sized pores, ranging from a few nanometers to hundreds of nanometers in diameter. These pores help the device discriminate and detect proteins and other molecules based on their size.One morning in March 1995, the deadly nerve gas sarin wafted through the Tokyo subwa
Prospecting for Gold in Genome Gulch
Amy Adams | Apr 14, 2002 | 9 min read
The human genome is much like the American West of the 1850s: Everyone wants a piece of the pie. Similar to gold prospectors of 150 years ago, biotech and pharmaceutical companies, and even universities, are frantically searching for the nuggets of gold that will help them find the mother lode—a gene whose function is sufficiently marketable to make all of the preliminary research worthwhile. Companies that do strike gold get to introduce new classes of drugs to the market. Others hope to
Reprints Still Enabling Authors To 'Spread The News' About Their Work
Ricki Lewis | Dec 10, 1995 | 9 min read
About Their Work Author: Ricki Lewis In the current age of electronic communication, the practice of sending postcards to colleagues to request reprints of their articles may seem quaint. Nonetheless, these postcards continue to crisscross the world at much the same volume as they have for years, scientists and journal publishers say. Article reprints serve several purposes. Many scientists see a reprint request as a pat on the back. "In my scientific youth, I kept an exact count of the numbe
One Step Beyond: Going Beyond Genomics With Proteomics And Two-Dimensional Gel Technology
Laura Defrancesco | Jan 3, 1999 | 10+ min read
Proteomes and 2D Gel Apparatus Providers Big science has moved on to proteins. With the new brand of science termed proteomics--named by the Australians Marc Wilkins and Keith Williams to mean the "set of PROTEins encoded by the genOME"--the push is on around the globe to produce a complete description of a cell/tissue/organism in terms of the proteins produced. The challenge is all the greater because the expressed protein pattern changes with time and environment--responding to developmenta

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