What we study

The B.I.O.N.I.C. Lab studies why brain-computer interfaces (BCIs) fail in chronic implantation, using mouse-to-human translational tools to identify the cellular and vascular mechanisms that limit current devices. Research divides into two axes that share methods and trainees, so a student can contribute to one or both depending on project fit.

Tissue-Device Biophysics

This axis characterizes the mechanical, electrical, and chemical interactions between recording or stimulating electrodes and surrounding tissue, examining insertion trauma, foreign body response, and the time course of device degradation across weeks to months of chronic implantation. Recent work shows that chronic intracortical microstimulation (ICMS) at the most common clinical frequency drives seizure-like activity in roughly half of animals by six weeks (Suematsu, Vazquez, Kozai, Biomaterials, in revision). The finding reshapes how the field thinks about long-term stimulation safety.

Glial and Vascular Neurocomputation

This axis examines how non-neuronal cells (microglia, astrocytes, oligodendrocytes, mural cells, pericytes) and the local blood supply contribute to cortical computation, in health and at the electrode interface. Lab data show that oligodendrocytes mount a calcium response to ICMS that is dose-dependent and recovers slowly. Electrode insertion produces vascular disruption distinct from cellular trauma, and myelin remodeling is part of the metabolic substrate of sustained cognitive computation.

Cross-school integration through UP NExT

The lab operates within UP NExT (University of Pittsburgh Neural Engineering Cross-Translation), a cross-school initiative spanning Engineering, Medicine, and Arts & Sciences. UP NExT integration gives trainees access to clinical BCI cohorts (Rob Gaunt and Jennifer Collinger, Rehabilitation Medicine), oligodendrocyte and myelin biology (Franca Cambi, VA Pittsburgh), and inhibitory circuit and primate stimulation work (Bryan Hooks, Omar Gharbawie, Chengcheng Huang, Alberto Vazquez). Translational ICMS biomarker development connects to the Pittsburgh BCI cohort, so trainees work on the mouse side, the human side, or both.

Training outcomes

The training program is structured to produce researchers who can compete for federal training fellowships, publish first-author work in their primary training years, and transition to high-quality postdoctoral or industry positions on a defensible timeline.

Fellowships

All current PhD trainees in the lab hold or have held a federal training fellowship (NSF GRFP, NIH F30, NIH F31, or NIH T32 appointment) or equivalent foundation award. The lab supports fellowship application writing as a primary mentoring activity, with the PI providing multi-round draft feedback including mock review before submission.

Publication trajectory

First-year PhD students contribute to a middle-authorship paper before the start of their second year through analysis contributions, figure preparation, or technical contributions to a senior trainee's project. Independent first-author manuscripts typically begin in years 2 to 3, with the dissertation comprising 2 to 4 first-author papers depending on project structure.

Time to degree and transitions

PhD timelines target 4 to 6 years, with the lab maintaining structured aim-level milestones so the dissertation decomposes cleanly rather than extending into the 7-year tail that occurs when project structure is left implicit. Alumni have transitioned to postdoctoral positions at peer institutions, to faculty positions, and to industry roles spanning medical devices, neurotechnology, and data science.

The training arc

The lab follows an apprenticeship model. Graduate Student Researchers (GSRs) are researchers who are also students, not students who happen to do research. Their appointment provides stipend, tuition scholarship, and benefits in exchange for approximately 20 hours per week of research effort that creates knowledge for the public. Postdoctoral fellows on NIH NRSA mechanisms work at the 40 hours per week training standard, with university-employed postdocs on a 37.5-hour week.

Year 1, integration and cohort building

First-semester PhD students enter during a high-load transition (new city, new cohort, new coursework, often new country). The first semester prioritizes coursework, peer connection with cohort classmates, and lab integration through shadowing established trainees during surgery, two-photon imaging, electrophysiology, and analysis. Independent experimental projects are not expected. Cognitive shift from undergraduate (one correct answer, followable path) to research (the answer is not known, the path is built as the work progresses) is explicit and coached over the first 6 to 18 months.

Years 2 to 3, independent project ownership

Trainees take on an independent experimental program in their second year, anchored by a fellowship application (NSF GRFP in year 1 to 2, NIH F30 or F31 in year 2 to 3). The fellowship application defines the aims and training plan, with PI feedback across multiple draft cycles. Writing the application develops the scientific argument that becomes the dissertation.

Years 4 to 5, dissertation completion and transition

The final training years complete the dissertation papers, formalize the dissertation document, and run the postdoctoral or industry search. PI support during the transition includes letters, network introductions, and direct conversation about which trajectories fit the trainee's strengths.

Throughout, the mentorship cadence

Weekly 1-on-1 meetings cover research, technical troubleshooting, career planning, and any topic the trainee wants to raise. Annual written feedback addresses progress against milestones, skill development, and actionable goals. Honest effort estimation, learned through the weekly planning practice as a calibration tool, becomes a portable skill the trainee carries to every future role.

What the lab provides

•   Federal training fellowship support, with multi-round PI feedback on NSF GRFP, NIH F30, F31, F32, NDSEG, Hertz, and foundation applications, including mock review before submission.

•   Weekly 1-on-1 mentorship covering science, career, and fellowship strategy, with rescheduling rather than cancellation when conflicts arise.

•   Annual written feedback against agreed milestones, with mid-cycle calibration through 1-on-1s and manuscript review.

•   Research infrastructure including two two-photon microscopes (244 and 242), MVX wide-field imaging, electrophysiology (TDT), confocal microscopy, dedicated surgical and behavioral spaces, and the Autolab impedance and IROx activation rig.

•   Conference travel support for trainees who present (poster or talk), with departmental travel grants and society travel awards used to supplement lab funds.

•   Cross-school collaboration access through UP NExT, with co-mentorship and rotation opportunities across Engineering, Medicine, and Arts & Sciences.

•   A 10-day annual recess allotment beyond University holidays for 12-month GSR appointments, with sick leave taken as needed and NRSA parental leave per NIH policy for fellows.

PI commitments to trainees

The PI commits to the following responsibilities, which mirror the trainee expectations established in the lab working agreement.

•   Provide annual written feedback with specific actionable goals.

•   Provide training and mentorship for technical skills, scientific writing, grant writing, and career development.

•   Respond to trainee emails and Teams messages within the same windows expected of trainees during working hours.

•   Maintain confidentiality of trainee personal information disclosed in 1-on-1 meetings.

•   Not retaliate against trainees who raise concerns through grievance pathways (BioE Graduate Program Coordinator, BioE Chair, Office of the Vice Provost for Graduate Studies, Pitt Concern Connection, Office of Institutional Engagement and Wellbeing).

•   Not require work beyond the appointment hours specified by the trainee's funding mechanism.

What we look for in trainees

The lab values scientific curiosity, honesty about uncertainty, and willingness to do the slow work of building expertise. Relevant domains (cellular neuroscience, vascular biology, electrode engineering, in vivo imaging) are ones few candidates arrive already knowing, so prior wet-lab or coding skill helps but is not required. What is required is willingness to ask for help when stuck, to engage with peer feedback, and to communicate honestly about progress and capacity.

Trainees who do well here treat the appointment as a primary professional commitment, build calibration through repetition (weekly planning, draft cycles, iterative experimental design), and invest in peer relationships within the lab and across the cohort. Calibration comes through practice, not through expectation that expertise will arrive without it.

How to apply

Prospective PhD students

Apply to the University of Pittsburgh Bioengineering PhD program (deadline typically December 1 for fall matriculation), and indicate interest in the B.I.O.N.I.C. Lab in your statement. Direct email to the PI before application is welcome but not required, with the most useful introduction being a brief paragraph on why you are interested in BCI failure mechanisms or glial and vascular neurocomputation specifically, along with a CV.

Prospective postdoctoral fellows

Two postdoctoral searches are currently active, one for a glial and neurovascular biology role and one for an ICMS and wireless axon role. Candidates send a CV, a brief research statement (1 to 2 pages on what you would want to do in the lab, framed around a specific question rather than a method), and contact information for three references.

Rotation students and visiting scholars

BioE PhD students considering a rotation contact the PI directly to discuss project fit and timing. Visiting scholars (CSC-funded or otherwise) follow the University Office of International Services process, with the PI providing sponsorship documentation once project fit is agreed.

Documents you will receive at offer and onboarding

This overview is the first of three documents that govern the training relationship in the B.I.O.N.I.C. Lab. The other two are provided at offer letter and at appointment start.

•   Lab Operating Manual, the day-to-day reference covering working calendar, weekly planning mechanics, communication norms, conference and travel logistics, data and file management, lab safety and equipment, authorship guidelines, research integrity standards, and regulatory and grant compliance. Signed at appointment start.

•   Performance Management Process, the document describing how the lab addresses progress concerns through the calibration, capability, and fit framework, including the annual review process, escalation pathway, and trainee rights and grievance procedures. Provided at appointment start, referenced only when needed.

All three documents are maintained on the lab OneDrive with version dates, with the current version available to prospective candidates on request.