Publications by Jongeon Park | EPFL Graph Search

Additive manufacturing of flexible, biodegradable drug implants for sustained multi-drug release into the cochlea

Sensorineural hearing loss is a profound form of deafness, arising from damage to cochlear hair cells, which can be treated by limited clinical options such as cochlear implants. However, the implantation procedure carries the inherent risk of electrode in ...

2025

Additive manufacturing of water-soluble 3D micro molds for complex-shaped lipid microparticles

Arnaud Bertsch, Jürgen Brugger, Jongeon Park

Micro and nanoparticles made from polymers, metals, ceramics, and lipids are crucial for biomedical devices, energy storage, and electronics. Traditional fabrication methods like grinding, milling, and emulsification result in monolithic shapes and heterog ...

2025

Beyond the Mask: Advancing Fabrication and Immersive Learning

Arnaud Bertsch, Jürgen Brugger, Berke Erbas, Jongeon Park, Chenxiang Zhang

This paper presents advances in micro and nanofabrication techniques beyond conventional lithographic masks with examples of inkj et printing, nanostencil lithography, molecular-level doping methods, and thermal scanning probe lithography. These methods en ...

IEEE2025

Microfabrication of lipids for drug delivery applications

Jongeon Park

All living organisms contain lipids because lipids are the essential components of cell membranes, which preserve the integrity and functionality of cells by protecting their organelles from the external environment. Lipids can also be found easily in our ...

EPFL2025

3D Lipid Microrobots for Simultaneous Delivery of Lipophilic and Hydrophilic Drugs

Arnaud Bertsch, Jürgen Brugger, Jongeon Park

This study presents the development of a 3D lipid microhelix capable of simultaneously delivering drugs with different characteristics, including water-soluble and poorly water-soluble drugs. Lipid microhelix encapsulating magnetic nanoparticles (MNPs) and ...

IEEE2025

Liquid-in-a-MEMS: Encapsulation of Liquid in a Microcapsule by Inkjet Printing

Arnaud Bertsch, Jürgen Brugger, Jongeon Park

IEEE2023

Nanoliter Liquid Packaging in a Bioresorbable Microsystem by Additive Manufacturing and its Application as a Controlled Drug Delivery Device

Arnaud Bertsch, Jürgen Brugger, Cristina Martin Olmos, Jongeon Park

Precise packaging of nanoliter amounts of liquid in a microsystem is important for many biomedical applications. However, existing liquid encapsulation technologies have limitations in terms of liquid waste, evaporation, trapped bubbles, and liquid degrada ...

2023

Biodegradable Implantable Microsystems

Jürgen Brugger, Jongeon Park

Biodegradable implanted devices and microsystems are candidates to fulfill the utmost required in-vivo assistance for a variety of envisioned bio-medical health care applications. They range from monitoring biomarkers, recording, and stimulation, to local ...

IEEE2023

LIQUID-IN-A-MEMS: ENCAPSULATION OF LIQUID IN A MICROCAPSULE BY INKJET PRINTING

Arnaud Bertsch, Jürgen Brugger, Jongeon Park

In this work we demonstrate a new process for precisely encapsulating nanoliters of aqueous solution in a microcapsule. Microcapsules were fabricated by twophoton polymerization and subsequently filled and sealed by inkjet printing. Our new approach overco ...

2023