Vietnamese teen accepted to Johns Hopkins for early cancer detection research

Mai Xuan Khoi, an 18-year-old student at the Vietnam Australia International School, achieved an impressive SAT score of 1580 out of 1600. He initially thought Johns Hopkins was beyond his reach, especially after facing rejection from Cornell University during the early admission round in December 2024.

"I only believed that I got accepted after reading the entire email," Khoi said, recalling the disbelief upon first seeing the word "Congratulations."

Motivated by personal experience with a loved one's battle with cancer, Khoi pursued research aimed at early detection. His groundbreaking work involves using terbium phosphate, a substance capable of luminescence that can highlight cancer cells during scans. Khoi focused on a hydrothermal method to create this substance, potentially enabling doctors to detect and mark cancer cells more efficiently and accurately.

Mai Xuan Khoi secured multiple medals at the International STEM Olympiad in 2023. Photo courtesy of Khoi

A hero's journey

Khoi conducted his research under the mentorship of Le Thi Vinh, a lecturer at the University of Mining and Geology. Vinh praised Khoi's meticulous and persevering nature, highlighting his ability to independently gather information and creatively apply previous research.

"Khoi always tries to think in innovative ways. I highly value this quality," Vinh said.

Khoi's research excellence was internationally recognized when he secured a gold award at a global scientific innovation competition in the U.S., which had thousands of participants. Additionally, he contributed to projects such as developing calcium test kits for aquaculture and wastewater treatment solutions in Hanoi, earning multiple domestic and international awards.

Interestingly, Khoi chose to showcase his personal growth journey rather than his academic accolades in his application essay. Reflecting on his admiration for his grandfather, a former special forces member, Khoi wrote about how a brief experience with Muay Thai and subsequent conflict with peers taught him the true meaning of heroism.

"Heroism doesn't come from superiority but from the willingness to be accountable, to help others, and protect your family," he reflected, noting this lesson encouraged him to return to Muay Thai and reconcile past mistakes.

Tran Phuong Hoa, director of Summit Education Services who assisted Khoi with his application, highlighted his remarkable persistence despite initial struggles with emotional expression in writing. Khoi revised his essay dozens of times over two months, ultimately producing an authentic narrative.

"I believe Khoi has the qualities of an exceptional engineer and researcher," Hoa said.

Khoi will start his studies in Chemical and Biomolecular Engineering at Johns Hopkins University in August, initially focusing on coursework and acclimation. He plans to continue advancing his cancer detection research, hoping to make significant contributions to cancer treatment in the future.