Leading the charge at the EV Center, our fearless leader is here to back your research—whether it’s through equipment, scholarships, or seminars with top EV experts
Who is Alissa Weaver?
This light-scattering technique tracks Brownian motion to measure and count nanoparticles.
What is nanoparticle tracking analysis?
Hardin, Heuser and Stahl first described release of exosomes from this endosome-derived organelle.
What is the multivesicular body?
Ectosomes form by budding from this excapsulating organelle.
What is the plasma membrane?
These large EVs are released from cells undergoing programmed cell death.
What are apoptotic bodies?

This diminutive dynamo won the 2025 ISEV Special Achievement Award for her pioneering work showing that large oncosome mediate prostate cancer progression.
Who is Dolores Di Vizio?
EVs are part of the cellular secretome in this liquid sample harvested from cultured cells.
What is conditioned media?

This family of EV marker proteins can induce membrane curvature through conformational changes.
What are Tetraspanins?
These submicroscopic infectious agents hijack EV biogenesis pathways to evade the host immune response.
What are viruses?
With diameters ranging from 10 to 20 microns, these bulging, blubbery EV blobs can contain whole MVBs and both take up and release other EVs
What are Blebbisomes?

In 1983, her discovery of vesicles released from reticulocytes launched the field of EV research.
Who is Rose Johnstone?
These 3D perfusion devices for cell culture outperform traditional flasks for large-scale EV production.
What are bioreactors?

You can take pictures like this of cargoes on individual EVs using this piece of EV Center equipment
What is the ONI Nanoimager?
Circumventing the accumulation of EVs in this organ is a major challenge for EV therapeutics
What is the liver?
These uncommonly large EVs are associated with a highly metastatic “amoeboid” tumor cell phenotype.
What are large oncosomes?

A founding member of ISEV, he launched #EVClub as a small journal club at Johns Hopkins and grew it into a global virtual forum for EV-related scientific exchange
Who is Ken Witwer?
This user guide to EV studies was first published in 2014, and updated in 2018 and 2023.
What is MISEV (Minimal Information for Studies of Extracellular Vesicles)?

This electron micrograph depicts the cup-like shape of these endosomally-derived small EVs.
What are exosomes?
This sticky substance is a major protein component of blood and is a common hitchhiker on plasma-derived EVs.
What is albumin?
Ectosome budding requires molecular rearrangements of the plasma membrane and this underlying structural network.
What is the actin cytoskeleton?

This pioneer of EV research discovered exosomal RNA transfer in 2007, helped to found ISEV, and served as Editor-In-Chief of JEV for the past 6 years
Who is Jan Lötvall?
Not the Commodores’ sports conference, but an EV isolation method that separates particles through a column of porous beads.
What is SEC/size exclusion chromatography?

These small but mighty nucleic acids can hitch a ride in EVs to alter gene expression in far-off recipient cells
What are miRNA?
Double trouble at the membrane, this pair of small GTPase proteins help vesicles dock and release
What are Rab27a and Rab27b?
Greater exposure of this lipid on the outer membrane leaflet is one of the main features of ectosomes
What is phosphatidylserine?