Hey

I ‘m

Jonathan S.

Weerakkody!

Postdoctoral Researcher @Yale | ​Engineer | Digital Artist

I specialize in extracellular vesicles and exosome biology, ​with a deep interest in biotechnology development and its ​applications in neurology and pathology.

linkedin

A Bit ​About ​Me

Ultra Thin Lined Spiral

InequaLity

Equity

Equity

EquaLity?

EquaLity?

Justice

Justice

Adapted from 2019 Design in Tech Report.

Bio

I was born and raised in the island nation of Sri-Lanka. My passion ​for research began during my undergrad at Louisiana Tech University ​(Go Bulldogs!!), where I worked on NASA's EPSCOR project. This ​experience led me to secure a full-ride scholarship from the ​European Commission to pursue a Master's at KU Leuven. There, I ​had the privilege to train at IMEC, a leading R&D hub in ​nanoelectronics, further driving my interest towards biotechnology ​with a focus on developing and commercializing micro/nano devices.


For my PhD, I joined the Yanxia Hou Lab in the Interdisciplinary ​Research Institute of Grenoble, part of the French Alternative ​Energies and Atomic Energy Commission in France. Here, I ​collaborated with the start-up Aryballe Technologies to develop an ​optoelectronic nose, contributing to several technical papers that ​supported the commercialization of the device. Aiming to bridge my ​expertise to biomedical technologies, I continued my postdoctoral ​training in the Ramakrishnan lab and Rothman lab, focusing on in ​vitro technologies for neurodegenerative disorders.


I am currently in the final phase of my postdoctoral training at the​ Pitt Lab, where I am applying clinical insights to deepen our ​understanding of multiple sclerosis progression. This endeavor ​represents the culmination of my experiences in science and ​engineering, each steering my research, hopefully, towards ​meaningful advancements in biomedical applications.

Research ​Philosophy

My research journey has spanned multiple continents, with each ​location uniquely enriching my knowledge and broadening my ​experiences. At the core of this global exploration is my commitment ​to equity and diversity, which shapes every interaction and ​collaboration. We are like vessels, continuously gathering diverse ​experiences throughout our lives. As scientists, we blend these ​experiences, much like an artist with their palette, to create a ​cohesive body of work. This synthesis not only deepens our ​understanding of the world but also reshapes the landscape of ​research, emphasizing inclusivity and expanding perspectives in our ​pursuit of justice.

Education

Map world, Worldmap global, Worldwide globe
Map Marker Icon
Map Marker Icon
Map Marker Icon
Map Marker Icon
Map world, Worldmap global, Worldwide globe

SKILLS

Postdoctoral Associate

Yale School of Medicine, U.S.

Neurology & Pathology Departments

Ph.D. in Biophysics

University Grenoble-Alpes, France

Doctoral School of Physics

M.S. in Nanoscience and Nanotechnology (Hons.)

Katholieke Universiteit Leuven, Belgium

Bio-nanotechnology Concentration

EU commission funded Joint degree

B.S. in Nanosystems Engineering (Top 5%)

Louisiana Tech University, U.S.

Biomedical Concentration

Minor in Mathematics

Wreath Glyph Icon
Wreath Glyph Icon

Doctoral

Fellowship

Wreath Glyph Icon
Wreath Glyph Icon

Erasmus+ ​Masters ​Scholarship

EU Commission (2015-2017)

Wreath Glyph Icon
Wreath Glyph Icon

Outsanding

Junior

Louisiana Tech University (2014)

Wreath Glyph Icon
Wreath Glyph Icon

Freshman ​Engineer of the ​year

Tau Beta Pi - Louisiana Gamma ​Chapter (2011)

Current ​Research

Extracellular Vesicles - ​‘FedEx for your cells’

Discovering Invisible Messengers in the Fight Against ​Neurodegenration: In cellular communication, tiny ​carriers known as extracellular vesicles (EVs) are ​revolutionizing our understanding of neurodegenerative ​diseases, including multiple sclerosis (MS) and ​Alzheimer’s disease [1]. Once dismissed as mere ​cellular debris, these nanoscale particles have ​emerged as potent biomarkers for the early detection of ​disease progression. By analyzing the molecular ​signatures carried by plasma-derived EVs in patient ​blood, we are gaining vital insights into how ​neurodegenerative conditions alter cellular ​communications. This approach advances our ​diagnostic capabilities ushering in a new era of ​targeted interventions and personalized care for ​neurodegenerative disorders.


Quotation Mark

Tiny but mighty, extracellular ​vesicles might just be the dark ​horse of cellular ​communication, with the ​potential to revolutionize how ​we diagnose and treat ​diseases.


~ A. Abbot Nature ​News (2023)

Previous Research

Exploring Exocytosis

Investigating Protein Modulation in Synaptic Vesicle Pools: What is ​the role of protein isoforms and their enrichment in distinct vesicle ​pools? Our research explores the vital role of exocytosis proteins in ​regulating neurotransmitter and hormone release and their potential ​links to Diabetes and Alzheimer's. By studying protein modulation ​within vesicle pools, we aim to uncover mechanisms that could lead ​to advanced therapeutic targets. unpublished

High-Throughput Luciferase Reporter Assay for Insulin Secretion: Our ​research involved the development of a high-throughput luciferase ​reporter assay specifically designed to study the dynamics of insulin ​secretion in pancreatic β-cells. This innovative tool enables precise ​quantification of insulin promoter activity under various stimuli, ​offering critical insights into the cellular mechanisms that control ​insulin release—a key aspect of diabetes research [2].

Next-Generation In-Vitro Membrane-On-Chip Technology: Our ​research involved the development of an advanced membrane-on-chip ​in vitro platform, specifically focusing on a synapse-on-chip, enabling ​the mechanistic dissection of exocytosis [3,4]. This platform allows ​for precise studies of synaptic functions and capturing the intricate

choreography of molecules during fusion events crucial for ​understanding the states of neurodegenerative diseases.

Biomimetic Opto-electronic Nose

Interplay between Biologocal structure and Function in odor ​detection: Our research focuses on the physiochemical roles of ​nanostructured biological receptors within the optoelectronic nose ​system. We have underscored the importance of biomimetic structural ​elements, utilizing hairpin DNA and short peptides to boost system ​functionality [7, 8]. A fortunate discovery led to the development of ​innovative biomaterials aimed at enhancing odor sensing. We have ​crafted biohybrid heterostructures, meticulously designed through the ​self-assembly of simple short peptides for the sensitive and selective ​detection of odors [5].

Plasmonic Contributions of a Gas-Phase Surface Plasmon ​Resonance Imaging (SPRI) Chip: Our research achieved a significant ​breakthrough in understanding surface plasmon damping effects on ​plasmonic sensors. We identified the critical role of nanometric semi-​ellipsoidal gold grains on the sensor's surface. Through a ​comprehensive numerical model, we successfully matched theoretical ​predictions with experimental outcomes for the first time [9]. This ​foundational work has led to pioneering developments in SPRI ​technology, particularly in enhancing the opto-electronic nose ​sensitivity [6].


Select Publications


  1. Weerakkody JS, Tseng T, Topper M, et al. Photosensitive Nanoprobes for Rapid High Purity Isolation ​and Size-Specific Enrichment of Synthetic and Extracellular Vesicle Subpopulations. Advanced ​Functional Materials. 2024 Patent Pending - Yale Ventures
  2. Thoduvayil S, Weerakkody JS, Sundaram RVK, et al. Rapid Quantification of First and Second Phase ​Insulin Secretion Dynamics using an In vitro Platform for Improving Insulin Therapy. Cell Calcium. 2023
  3. Kalyana Sundaram RV, Bera M, Coleman J, Weerakkody JS, Krishnakumar SS, Ramakrishnan S. ​Native Planar Asymmetric Suspended Membrane for Single-Molecule Investigations: Plasma ​Membrane on a Chip. Small. 2022
  4. Ramakrishnan S, Weerakkody JS. Suspended lipid bilayer: a versatile platform for nextgen drug ​discovery and biomedical applications. Accounts of Materials Research. 2022
  5. Weerakkody JS, El Kazzy M, Jacquier E, et al. Surfactant-like peptide self-assembled into hybrid ​nanostructures for electronic nose applications. ACS nano. 2022
  6. El Kazzy M, Weerakkody JS, Hurot C, et al. An overview of artificial olfaction systems with a focus on ​surface plasmon resonance for the analysis of volatile organic compounds. Biosensors. 2020
  7. Brenet S, Weerakkody JS, Buhot A, et al. Improvement of sensitivity of surface plasmon resonance ​imaging for the gas-phase detection of volatile organic compounds. Talanta. 2020.
  8. Gaggiotti S, Hurot C, Weerakkody JS, et al. Development of an optoelectronic nose based on surface ​plasmon resonance imaging with peptide and hairpin DNA for sensing volatile organic compounds. ​Sensors and Actuators B: Chemical. 2020
  9. Weerakkody JS, Brenet S, Livache T, Herrier C, Hou Y, Buhot A. Optical index prism sensitivity of ​surface plasmon resonance imaging in gas phase: Experiment versus theory. The Journal of Physical ​Chemistry C. 2020


Community Outreach

Arbeiter Samariter Bund

2004: Post-Tsunami Program

Contributed to ASB’s post-tsunami relief ​efforts in Sri Lanka, focusing on rebuilding ​preschools in underprivileged communities and ​combating long term psychological impact due ​to displacement.

Donate web button. Red button with heart. Symbol of financial aid isolated on white background. Vector flat illustration

World Vision

Positive Deviance Hearth Program

Spearheaded vital community health and ​nutrition programs to sustainably prevent ​malnutrition among children under five in Sri-​Lanka’s impoverished coastal communities.

Donate web button. Red button with heart. Symbol of financial aid isolated on white background. Vector flat illustration

Boost Foundation

Project Sharing Knowledge

Engaged in delivering science and ​mathematics education to overcome staffing ​and resource challenges in rural schools in Sri-​lanka, contributing to the educational ​empowerment of the community.

Donate web button. Red button with heart. Symbol of financial aid isolated on white background. Vector flat illustration

Email:

Ad​dress

8th floor

300 George St.,

New Haven, CT, 06511

Get in touch

linkedin