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Samuel Jarrod Francis

Assistant Professor of Emergency Medicine
Emergency Medicine

Current Appointments & Affiliations


Assistant Professor of Emergency Medicine · 2021 - Present Emergency Medicine, Clinical Science Departments

Recent Publications


Targeting PIEZO1-TMEM16F Coupling to Mitigate Sickle Cell Disease Complications.

Journal Article Am J Hematol · December 2025 A deeper understanding of sickle cell disease (SCD) pathophysiology is critical for identifying novel therapeutic targets. A hallmark of SCD is abnormal phosphatidylserine (PS) exposure on sickle red blood cells (RBCs), which contributes to anemia, thrombo ... Full text Open Access Link to item Cite

An Aptamer-Based EXACT Anticoagulant as a Sustainable, Animal-Free Alternative to Unfractionated Heparin.

Journal Article Adv Sci (Weinh) · October 6, 2025 Unfractionated heparin (UFH), designated as an essential medicine by the World Health Organization (WHO), is indispensable in cardiac surgery and various clinical applications. However, its production depends on the farming of over a billion large animals ... Full text Link to item Cite

Complement activation as a biomarker for platelet-activating antibodies in heparin-induced thrombocytopenia.

Journal Article J Thromb Haemost · March 2025 BACKGROUND: Immunoglobulin G antibodies (Abs) to platelet factor 4 (PF4) complexed to heparin (PF4/H) commonly occur after H exposure but cause life-threatening complications of H-induced thrombocytopenia (HIT) in only a few patients. Presently, only plate ... Full text Link to item Cite
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Recent Grants


Sysmex CN-6000 - D-dimer Studies for VTE Exclusion Claim

Clinical TrialPrincipal Investigator · Awarded by Sysmex America, Inc. · 2025 - 2030

An Examination of a Novel Fluorescence Assay in the Diagnosis of Heparin Induced Thrombocytopenia

ResearchPrincipal Investigator · Awarded by North Carolina Biotechnology Center · 2022 - 2023

Platelet Kinetics in Acute Thrombus Formation in Healthy and VTE Patients

FellowshipPrincipal Investigator · Awarded by Society for Academic Emergency Medicine · 2019 - 2022

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Education, Training & Certifications


Indiana University, School of Medicine · 2011 M.D.
University of Notre Dame · 2007 B.S.