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Natural Sciences

Penn Engineering’s Dohyung Kim named 2025 Packard Fellow for Science and Engineering

Penn Engineering’s Dohyung Kim named 2025 Packard Fellow for Science and Engineering

The assistant professor in chemical and biomolecular engineering has been named a 2025 Packard Fellow for Science and Engineering by the David and Lucile Packard Foundation. Kim leads the Kim Laboratory of Electrochemistry and Interfaces at the Nanoscale, which investigates how chemical reactions occur on the surfaces of solid catalysts—materials that drive processes central to energy production, fuel generation, and chemical manufacturing.

Two Penn faculty elected American Physical Society Fellows
Ritesh Agarwal and Doug Jerolmack.

Ritesh Agarwal (left), Srinivasa Ramanujan Distinguished Scholar in Materials Science and Engineering, and Douglas Jerolmack, Edmund J. and Louise W. Kahn Endowed Term Professor of Earth and Environmental Science and professor of mechanical engineering and applied mechanics.

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Two Penn faculty elected American Physical Society Fellows

Ritesh Agarwal of the School of Engineering and Applied Science and Douglas Jerolmack of the School of Arts & Sciences and Penn Engineering have been elected by their peers in recognition of their contributions to the field.

2 min. read

Inspiring interest in water quality at Cobbs Creek
Two people in waders in Cobbs Creek getting water samples.

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Inspiring interest in water quality at Cobbs Creek

Faculty and staff, high school and Penn students, and community members are working together to collect and analyze the most detailed water quality data to date at the West Philadelphia stream.

4 min. read

A world shaped by water and access
Three people test water below a sand dam.

Griffin Pitt, right, works with two other student researchers to test the conductivity, total dissolved solids, salinity, and temperature of water below a sand dam in Kenya.

(Image: Courtesy of Griffin Pitt)

A world shaped by water and access

Griffin Pitt’s upbringing made her passionate about water access and pollution, and Penn has given her the opportunity to explore these issues back home in North Carolina and abroad.

3 min.

A built-in ‘off switch’ to stop persistent pain

Collaborative research on the neural basis of chronic pain led by neuroscientist J. Nicholas Betley finds that a critical hub in the brainstem, has a built-in “off switch” to stop persistent pain signals from reaching the rest of the brain. Their findings could help clinicians better understand chronic pain. (Pictured) Flurorescence imaging reveals hunger neurons in the arcuate nucleus of the hypothalamus labeled in maroon with nuclei shown in blue.

(Image: J. Nicholas Betley)

A built-in ‘off switch’ to stop persistent pain

J. Nicholas Betley has led collaborative research seeking the neural basis of long-term sustained pain and finds that a critical hub in the brainstem holds a mechanism for stopping pain signals from reaching the rest of the brain. Their findings could help clinicians better understand chronic pain and lead to new, more efficacious treatments.

4 min. read

Students test one way to combat extreme heat in Philadelphia
Nafisa Bangura (left) and Angelica Dadda (right) doing hands-on experimental work in the Composto Lab.

Nafisa Bangura (left) and Angelica Dadda (right) examine CoolSeal-treated asphalt bricks in the Composto Lab to better understand how this coating behaves in controlled environments.

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Students test one way to combat extreme heat in Philadelphia

Third-year students Nafisa Bangura and Angelica Dadda expanded upon a multidisciplinary research endeavor to evaluate a reflective pavement coating as a tool to mitigate extreme heat. Their work may inform policy efforts to improve urban heat resilience.

4 min. read

Does early-life cellular activity influence cancer and aging?
Artist rendering of chromosome structure with telomeres highlighted at the ends.

Mia Levine and Michael Lampson’s research examines how telomere length is inherited, and how this can inform future genetic research in how cancer develops.

(Image: Courtesy of Getty/nopparit)

Does early-life cellular activity influence cancer and aging?

New research from Michael Lampson and Mia T. Levine in the School of Arts & Sciences offers insight into how telomeres—protective chromosomal caps linked to aging and cancer in mammals—are inherited. Their finding that telomeres become longer or shorter during early embryonic development opens new avenues for research.

3 min. read

A summer in the tick trenches
A person in PPE holding blue painters tape covered in several ticks.

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A summer in the tick trenches

With the help of five Penn undergrads, biology professor Dustin Brisson’s research group collected 9,000 tick specimens this summer to understand how seasonal activity patterns of these arachnids affects human pathogens and what role a changing climate might play.

Kristina Linnea García

2 min. read