Publications de Massimo Mariello

Magnesium Optrodes for Real-Time Optical Monitoring of Water Transport in Ultrathin Encapsulations for Bioelectronics

Yves Leterrier, Stéphanie Lacour, Hatice Altug, Deepthy Kavungal, Massimo Mariello

Recent studies investigated the hydrolysis of Magnesium (Mg) thin films, highlighting their potential use in biodegradable devices. Quantitatively monitoring the degradation rate and morphological changes of Mg through optical methods and light-delivery de ...

2024

Water-permeation sensor and method for making the same

Yves Leterrier, Stéphanie Lacour, Kyungjin Kim, Massimo Mariello

A water permeation sensor suitable for monitoring and quantitatively assessing ultra-low permeability of thin film encapsulations engineered for bioelectronic microdevices, its fabrication as well as device comprising the same are disclosed herein. ...

2024

Optical Monitoring of Water Side Permeation in Thin Film Encapsulation

Yves Leterrier, Stéphanie Lacour, Kangling Wu, Massimo Mariello

The stability of long-term microfabricated implants is hindered by the presence of multiple water diffusion paths within artificially patterned thin-film encapsulations. Side permeation, defined as infiltration of molecules through the lateral surface of t ...

Wiley-V C H Verlag Gmbh2024

Hermetic, Hybrid Multilayer, Sub-5µm-Thick Encapsulations Prepared with Vapor-Phase Infiltration of Metal Oxides in Conformal Polymers for Flexible Bioelectronics

Yves Leterrier, Stéphanie Lacour, Kangling Wu, Massimo Mariello

Reliable long-term function is crucial for flexible and soft bioelectronics. Mechanical defects and permeation of water molecules across the various device layers are the prime drivers of failure, and particularly in applications requiring continuous conta ...

2024

Magnesium Test: Universal and Ultra-Sensitive Method for Measuring Reliability of Thin-Film-Encapsulated Bioelectronic Implants in Physiological Environment

Yves Leterrier, Stéphanie Lacour, Grégoire Courtine, Ivan Furfaro, Kangling Wu, Lei Wang, Claudia Kathe, Massimo Mariello

Next-generation bioelectronic implants require miniaturization, durability, and long-term functionality. Thin film encapsulations, prepared with inorganic or hybrid organic/inorganic designs, are essential for ensuring protection, low water permeation, ada ...

Wiley-V C H Verlag Gmbh2024

Wireless, battery-free, and real-time monitoring of water permeation across thinfilm encapsulation

Anja Skrivervik, Yves Leterrier, Stéphanie Lacour, Mingxiang Gao, James Daniel Rosenthal, Massimo Mariello

Long-term bioelectronic implants require stable, hermetic encapsulation. Water and ion ingress are challenging to quantify, especially in miniaturized microsystems and over time. We propose a wireless and battery-free flexible platform leveraging backscatt ...

Springer Science and Business Media LLC2024

Hydrogels and conductive hydrogels for implantable bioelectronics

Stéphanie Lacour, Outman Akouissi, Emilio Fernández Lavado, Massimo Mariello, Kutay Sagdic

Hydrogels are a class of soft materials, which display unique biomimetic properties to biological tissues. Their mechanical properties, high water content, and porosity resemble that of extracellular matrix so that cell growth and proliferation can be reli ...

2023

Recent Advances on Hybrid Piezo-triboelectric Bio-nanogenerators: Materials, Architectures and Circuitry

Massimo Mariello

Nanogenerators, based on piezoelectric or triboelectric materials, have emerged in the recent years as an attractive cost-effective technology for harvesting energy from renewable and clean energy sources, but also for human sensing and biomedical wearable ...

MDPI2022

Heart Energy Harvesting and Cardiac Bioelectronics: Technologies and Perspectives

Massimo Mariello

Nanogenerators are a recently emerging technology which is able to cost-effectively harvest energy from renewable and clean energy sources at the micro/nano-scale. Their applications in the field of self-powered sensing systems and portable power supplying ...

MDPI2022

Recent Advances in Encapsulation of Flexible Bioelectronic Implants: Materials, Technologies, and Characterization Methods

Yves Leterrier, Stéphanie Lacour, Kangling Wu, Kyungjin Kim, Massimo Mariello

Bioelectronic implantable systems (BIS) targeting biomedical and clinical research should combine long-term performance and biointegration in vivo. Here, recent advances in novel encapsulations to protect flexible versions of such systems from the surround ...

Wiley-V C H Verlag Gmbh2022