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tag department of justice culture microbiology

Of Cells and Limits
Anna Azvolinsky | Mar 1, 2015 | 9 min read
Leonard Hayflick has been unafraid to speak his mind, whether it is to upend a well-entrenched dogma or to challenge the federal government. At 86, he’s nowhere near retirement.
Keeping Tabs on Cultured Cells
Lissa Harris(lharris@the-scientist.com) | Mar 13, 2005 | 6 min read
THE CULTURE WITHIN:Photo courtesy of Drs. C.C. Uphoff and H.G. Drexler, DSMZ-German Collection of Microorganism and Cell Cultures, Braunschweig, GermanyHeLa cell line infected with Mycoplasma hyorhinis. Scanning electron micrograph of critical point-dried cell culture grown on cover slips. Note the loop- and rod-like mycoplasmas attached to the host cell membrane. Smaller web-like structures on the cell surface represent microvilli of the cell. Original magnification 3,000×.Mycoplasmas have
The Strange and Stranger Case of Wyndham Lathem
Anna Azvolinsky | Aug 24, 2017 | 5 min read
A Northwestern University plague researcher has been charged with a brutal murder. Here’s what we know about him.
The Necrobiome
Chris Palmer | Feb 1, 2014 | 4 min read
Next-generation sequencing of the bacterial assemblages that inhabit a corpse throughout decomposition improve time-of-death estimates.
Biological Terrorism
Jennifer Fisher Wilson | Nov 11, 2001 | 8 min read
One warning came in black-and-white in 1993: A U.S. Congressional Office of Technology Assessment report projected that releasing 100 kilograms of aerosolized anthrax spores upwind of the U.S. capital could kill between 130,000 and 3 million people-a lethality at least matching that of a hydrogen bomb. Last year, a U.S. Justice Department exercise revealed that discharging pneumonic plague in Denver could create 3,700 or more cases, with an estimated 950 or more deaths within a week.1 Then, acco
Making Things Grow: Insect Cells, Stem Cells, and Primary Cell Lines All Pose Challenges for Cell Culturists
Laura Defrancesco | Jun 21, 1998 | 5 min read
Date: June 22, 1998 Insect Cell Culture Media, Suppliers of Primary Cell Culture Media Advantages for Protein Expression Studies Since the mid-1950s cultures of insects--cockroaches, fruit flies, and leafhoppers, to name a few--have been the object of quiet study by physiologists and cell biologists. But along came genetic engineering and suddenly insect cultures have been put in the spotlight since they provide advantages over both bacterial and mammalian systems for recombinant protein prod
Of Cuffs and Custodians
Peg Brickley | May 18, 2003 | 7 min read
Anne MacNamara The sight of Texas researcher Thomas Butler led away in handcuffs, an image broadcast across America earlier this year, shows that US regulators are serious about stricter laboratory security.1 Colleagues describe Butler, chief of the infectious disease division in the Texas Tech University Department of Internal Medicine, as a talented scientist long devoted to defeating plague. But the September 2001 terrorist attacks transformed plague from a scourge of the Third World into
An Ocean of Viruses
Joshua S. Weitz and Steven W. Wilhelm | Jul 1, 2013 | 10+ min read
Viruses abound in the world’s oceans, yet researchers are only beginning to understand how they affect life and chemistry from the water’s surface to the sea floor.
Mircens Help Bring First-Rate Science To The Third World
Robin Eisner | Sep 1, 1991 | 9 min read
Microbiologist J.K. Arap Keter is betting that some recently collected strains of the bacterial genus Rhizobium will soon join the family of other nonpolluting, inexpensive, microbial biofertilizers currently in use by thousands of East African farmers on legume crops. But first he and colleagues in the department of soil science at the University of Nairobi in Kenya must show that the new isolates can foster different plants' growth by helping the plants use nitrogen. After that, they must cu
Location, Location, Location
Anna Azvolinsky | Apr 1, 2017 | 9 min read
Since first proposing that a cell’s function and biology depend on its surroundings, Mina Bissell continues to probe the role of the extracellular matrix.

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