An orthopedic total joint knee replacement is not a hinge.

It bends, rolls, glides and rotates. It bears the force of walking, climbing stairs, rising from a chair and living an active life. It has to mimic naturally enough to restore function, but remain stable enough to last. Its materials must survive millions of cycles inside the body, where the smallest design decisions can affect wear, inflammation, bone loss, loosening and pain.

That was the kind of problem Michael J. Pappas ’59, ’64 helped solve.

Nearly half of adolescents and young adults with lingering symptoms of concussion suffer from eye coordination disorders that cause double and blurred vision, headaches and difficulties concentrating. 

“These conditions make it hard to read books, work on a computer or even use a smartphone, and the impact on cognition and learning can be severe. They also delay the return to sports, work and driving for young people,” said Tara Alvarez, a distinguished professor of biomedical engineering at NJIT.

Written by: Andrew McMains and Tracey Regan
Published: Tuesday, August 5, 2025

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The Research & Development Council of New Jersey is recognizing medical technology developed at New Jersey Institute of Technology and Stryker executive Robert C. Cohen’s leadership in surgical device and robotics innovation.

Danna Valentina Sanchez Hernandez’s path to becoming a researcher began long before she arrived at NJIT. Growing up in Colombia, she developed an early fascination with science by attending medical conferences alongside her parents — both physicians — and learning about clinical trials and biological research. But her passion for biomedical engineering didn’t crystallize until she enrolled in dual-enrollment courses at Universidad CES.

Business leaders Adam Broder and Adam Shain have joined the Board of Trustees of New Jersey Institute of Technology.

Broder and Shain, who were appointed by N.J. Gov. Phil Murphy, bring extensive expertise in launching and growing businesses in financial services and health care, respectively.

“Our new trustees deepen and strengthen our ties to the business world and bring valuable insights and experiences that will help us on our journey to become an even more prolific nexus of innovation,” NJIT President Teik C. Lim said.

Seeing her father struggle through rehabilitation exercises after a stroke made Marina Samuel '25 think, why can’t therapy be more personalized, effective and efficient for the patient?

So, with a central focus on patients, she pursued a bachelor’s in biomedical engineering at New Jersey Institute of Technology and after graduation in May, will seek a Ph.D. in the same discipline at NJIT. Her research as an undergraduate fueled this pursuit.

Soldiers training on heavy artillery and athletes in contact sports are routinely exposed to repetitive mild shockwaves and injuries. Unlike someone who has just dodged a missile explosion or been smacked by a linebacker, they may feel little immediate impact.

The cumulative effects of these low-level blasts can, however, cause neurological problems such as sleep disorders and attention deficits, noted Bryan Pfister, director of New Jersey Institute of Technology’s Center for Injury Biomechanics, Materials and Medicine.