Students interested in pursuing multidisciplinary research to gain a broad perspective in chemistry and biology are encouraged to apply to the Chemistry-Biology Interface (CBI) PhD program. The CBI Program spans departments in Johns Hopkins University’s schools of Arts and Sciences, Engineering, Medicine, and Public Health.

Selected applicants will be asked to visit Johns Hopkins University for an interview. The CBI Program will arrange for meetings with faculty and students, and conduct tours of the facilities and community.

Application Instructions

To apply to the CBI Program, you will need to submit:

  • An online application for the chemical biology PhD
  • An unofficial undergraduate transcript
  • Statement of purpose
  • Three (3) letters of recommendation
  • Official GRE scores for the General test (optional for 2020)

In addition, one of the following subject tests may be submitted:

  • Biochemistry
  • Cell and Molecular Biology
  • Biology
  • Chemistry

If you do not plan to submit GRE general scores, please request a waiver by emailing  This request is necessary as a work around for the electronic forms.

Applications will be reviewed on a rolling basis and the deadline for all materials is January 15 to ensure full consideration. A select number of applicants will be invited to visit campus and interview over the weekend of March 5, 2021.

To aid our fall 2021 applicants, we have provided a list of CBI preceptors’ rotation and lab availability during the 2021-2022 academic year.

International Applicants

A training grant from the National Institutes of Health provides support for our students during their first year in the graduate program at the Chemistry-Biology Interface. However, the NIH limits this to U.S. citizens and permanent residents. International students who are interested in applying to this program must secure an outside grant or fellowship.