Postdoc: Phase- Ultrasound Imaging & Nanotech

Type: Full-Time

Category: Diagnostic Imaging and Radiography

Posted: October 22, 2025

Final date to receive applications: Open Until Filled

Posting Number: req
24239

Department: Radiology & Imaging Sciences

Location: University of Arizona Health Sciences

Address: 1501 N. Campbell Ave., Tucson, AZ, USA

The Department of Radiology and Imaging Sciences at the University of Arizona is seeking multiple Postdoctoral Research Associates to join the laboratory of Dr. Russell S. Witte, PhD. This role offers an exciting opportunity to lead groundbreaking research in Phase Change Ultrasound (PCUS) technology—combining ultrasound and nanotechnology to map the human lymphatic system. The successful candidate will collaborate with a multidisciplinary team of scientists and engineers to develop, evaluate, and validate PCUS and associated contrast agents in bench‑top and in vivo testbeds, advancing a new imaging modality for clinical use.

The University of Arizona offers outstanding employee benefits, including comprehensive health, dental, vision, and life insurance; paid vacation, sick leave, and holidays; tuition reduction programs for employees and eligible family members across UArizona/ASU/NAU; and access to recreation and cultural facilities.

Learn more about UArizona’s innovative work‑life programs and relocation services.

• Develop imaging protocols using programmable ultrasound systems (e.g., Verasonics or Vevo F2).
• Apply advanced ultrasound signal processing and beamforming principles.
• Formulate and characterize nanoparticles and ultrasound contrast agents.
• Conduct experiments in flow systems, tissue‑mimicking phantoms, biological tissue, and animal models.
• Produce high‑quality, peer‑reviewed publications.
• Mentor graduate and undergraduate students.

• Fluency in English, with excellent writing and presentation skills.
• Strong motivation, independence, and ability to work in a multidisciplinary research environment.

• PhD in Electrical Engineering, Biomedical Engineering, Chemical Engineering, Optical Sciences, or a related discipline.
• At least three publications in biomedical imaging, advanced signal processing, or nanotechnology.
• Minimum of four years of experience working with scientific hardware and instrumentation.

• Strong publication record in biomedical imaging, ultrasound, signal processing, and/or nanotechnology.
• Experience using open‑platform ultrasound systems (e.g., Verasonics Vantage/NXT, Visual Sonics F2/VADA).
• Minimum four years’ experience with bioinstrumentation (oscilloscopes, function generators, scanners).
• Proficiency in Matlab, C++, and/or Python (minimum four years).
• At least two years’ experience with acoustic modeling software (k‑Wave, FOCUS, Field II).
• Hands‑on experience formulating and characterizing nanoparticles or contrast agents.
• Familiarity with one or more of the following:
  • Super‑resolution or localization microscopy
  • Photoacoustic imaging
  • Elasticity imaging
  • Pulse encoding
  • Inverse problem‑solving
  • Machine learning and AI applications
  • Solid Works and 3D printing

• FLSA:
  Exempt
• Full‑Time Equivalent (FTE): 1.0
• Work Schedule:
  
  40 hours/week, Fiscal Year Appointment
• Job Category:
  Research
• Benefits Eligible:
  Yes – Full Benefits
• Compensation:
  Based on NIH Salary Guidelines
• Background Check:
  Name‑based criminal background check (non‑security sensitive)
• Number of Vacancies: 3

The University of Arizona is an Equal Opportunity/Affirmative Action Institution. Women, minorities, veterans, and individuals with disabilities are strongly encouraged to apply.