Life Sciences

Sequence to Solution
Yu Zhang
Person-to-person: Robert Mitchell
Robert Mitchell
Turning pathogens against each other to prevent drug resistance
Credit: Penn State
Fall 2017 Student Marshal
Andrew Doberstein
Flies' disease-carrying potential may be greater than thought, researchers say
A study initiated at Penn State’s Eberly College of Science adds further proof to the suspicion that houseflies and blowflies carry and spread a variety of species of bacteria that are harmful to humans. The housefly pictured above was taken in Singapore.
Survival of the least-fit: antiviral drug selectively targets the nastiest viruses
A new microfluidic system allows researchers to study the time-course of a viral infection and the consequences of antiviral intervention in up to 6,400 individual cells simultaneously. Individual cells are infected with a modified virus that produces a green-fluorescent protein that allows the researchers to track the virus’ growth over time by tracking the intensity of green-fluorescent protein in each cell. Credit: Penn State
Cryo-electron microscope to bring life sciences and materials sciences together
The FEI Titan/Krios transmission electron microscope, cryo-EM, can image structures down to the atomic level and can provide spectrographs of compounds and elements. Credit: Patrick Mansell
Mimicking biological process, hydrogel signals and releases proteins
A synthetic tissue releases therapeutic proteins (maroon/yellow) once triggered by metabolites (sandy brown). The metabolites contact with the double-stranded DNA (red/blue) to release the red triggering DNA. The triggering DNA activates the aptamer(cyan)-protein complex to release the protein. Credit: Xin Zou /Jinping Lai / Penn State
Identifying the mechanism for a new class of antiviral drugs could hasten their approval
The mechanism of a new class of antiviral drug. The RNA polymerase enzyme (yellow) replicates the virus genome by incorporating one nucleotide (black) at a time. Nucleotide analogues (red) are designed as antiviral drugs that can disrupt the replication process. The antiviral drugs work by (1) incorporating mutations, (2) stopping the replication process, or (3) a newly discovered mechanism in which the RNA polymerase enzyme pauses and then backtracks. Credit: Penn State
Exploring how herpes simplex virus changes when passed between family members
The outer protein shell (procapsid) of the herpes simplex virus type 1 (HSV1). A new study explores how HSV1 might change when passed from one individual to another. This information may provide important insight for future development of therapeutics and vaccines. Credit: Bernard Heymann, Ph.D., NIAMS Laboratory of Structural Biology Research, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health
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