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tag radioactive pollution ecology cell molecular biology

bacteria and DNA molecules on a purple background.
Engineering the Microbiome: CRISPR Leads the Way
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 10+ min read
Scientists have genetically modified isolated microbes for decades. Now, using CRISPR, they intend to target entire microbiomes.
Fluorescent Labeling Offers Flexibility Without Radioactivity
James Kling | Apr 13, 1997 | 9 min read
There is a war going on to win over the hearts and minds of molecular biologists: Radioactive isotopes-long the gold standard for tagging and later detecting RNA and DNA strands- are being challenged by a new generation of fluorescent labels that promise greater flexibility with fewer disposal problems. SEQUENCE DETECTION SYSTEM: Perkin-Elmer’s ABI Prism 7700 system uses a probe with a reporter and a quencher dye attached to it. With 14C, 32P, 125I, 3H, or some other radioactive atom bui
Close-up shot of sea surface with small waves
The Constellation of Creatures Inhabiting the Ocean Surface
Amanda Heidt | Jan 2, 2023 | 10+ min read
The myriad species floating atop the world’s seas, called neuston, are mysterious and understudied, complicating efforts to clean up plastic pollution.
Natural Solutions to Pollution
A. J. S. Rayl | Apr 6, 2003 | 10+ min read
Courtesy of Steven Rock HEADING OFF RUNOFF: Trees planted in Amana, Iowa, to protect stream from agricultural run-off Humankind has passed a remarkable environmental milestone: People now consume more of Earth's natural resources than the planet can replace.1 In light of this, pollution abatement technologies, coupled with development of renewable energy resources, seem destined to become big business during the 21st century. What is unfolding is a multidisciplinary, biology-led wave of
Weathering Hantavirus: Ecological Monitoring Provides Predictive Model
Steve Bunk | Jul 4, 1999 | 7 min read
Photo: Steve Bunk Dave Tinnin, field research associate in the University of New Mexico's biology department, takes blood samples and measurements of rodents caught on the research station grounds. At the end of a freeway exit near Soccoro, N.M., the hairpin turn onto a gravel road is marked by a sign that warns, "Wrong Way." But it isn't the wrong way if you want to reach the University of New Mexico's (UNM) long-term ecological research (LTER) station. The sign's subterfuge is the first indi
bacteria inside a biofilm
How Bacterial Communities Divvy up Duties
Holly Barker, PhD | Jun 1, 2023 | 10+ min read
Biofilms are home to millions of microbes, but disrupting their interactions could produce more effective antibiotics.
Bioremediation: Cleaning Up With Biology And Technology
Angela Martello | Jan 6, 1991 | 7 min read
As the necessity of cleaning up the environment moves to the forefront of the public's consciousness, researchers in increasing numbers have been enlisting some of the earth's tiniest creatures to help clean up highly polluted sites and reclaim soils and groundwater systems. Stimulated by advances in microbiology and biotechnology, the booming multidisciplinary field of environmental biotechnology focuses on the use of microorganisms to treat or degrade hazardous waste, encompassing the techniq
Philip Leder, Who Deciphered Amino Acid Sequences, Dies
Ashley Yeager | Feb 12, 2020 | 4 min read
The Harvard Medical School researcher’s work on the genetic basis of protein coding and production led him to make groundbreaking discoveries in immunology, molecular biology, and cancer genetics.
New Immunoassay Products Let Users Put New Twists On Old Themes
Lisa Seachrist | Sep 29, 1996 | 8 min read
Advanced Chemtech AFfinity Bioreagents Biodesign International Bio-Rad Laboratories BioSource International Boehringer Mannheim Biochemicals Cardinal Associates Inc. Immunochemistry Technologies Peninsula Laboratories Inc. Tropix Inc. Wako Chemicals USA Inc. Wallac Inc. A quick inventory of nearly any molecular biology laboratory these days will turn up a kudzu-like infestation of monoclonal antibodies, fluorescent-tagged secondary antibodies, and immunoassay kits. Immunoassays have become de
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

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