#Material
#System
#Circulation

”Return to the soil” circular sensors

SANKEN, Osaka University

#Material
#System
#Circulation

2024

Greendata Prize
Nature-Made Future Prize
Decompose Into The Earth Prize
Sensing with Nature Prize

Story
Link
Images
Judge’s Comments

#Material
#System
#Circulation

Contents

Story
Link
Images
Judge’s Comments

Story

The collection of environmental information such as temperature, humidity and soil moisture are fundamental for all outdoor activities, including agriculture, environmental conservation and urban management. In order to collect environmental information, it is necessary to install sensors in the real world. The hyper-dense installation of sensors contributes to the efficiency of outdoor activities and the realization of a prosperous society. However, large numbers of sensors can cause environmental destruction
In this project, we are working to achieve “return to the soil” circular sensors, in order to achieve both high-density installation of sensors and sustainability. By using only plant fibers, soil components and natural oils that exist in the environment to achieve sensing and data transmission, it becomes possible to circulate the sensors in the natural eco-system, just like fallen leaves. We have already succeeded in developing prototypes of humidity sensors and soil moisture sensors, and the sensors we develop will eventually be degraded by creatures such as pill bugs and returned to the soil. We are taking on the challenge of developing circular sensors from a comprehensive perspective, from materials to systems.

Link

Images

Judge’s Comments

Cecilia Tham

Co-founder and CEO at Futurity Systems

Greendata Prize

This project demonstrates a deeply considered approach to addressing the growing issue of e-waste while enabling vital environmental monitoring. The concept of "return to the soil" sensors made from cellulose nanofibers is a compelling response to the dual challenges of sustainability and functionality. By relying on plant-derived materials that can biodegrade naturally, the project aligns well with the principles of a circular economy, providing a meaningful alternative to traditional sensors that contribute to electronic waste.

The focus on enabling hyper-dense sensor deployment without ecological harm is particularly impressive and presents significant potential for applications in agriculture, environmental conservation, and urban management. The use of cellulose nanofibers as a base material also highlights the innovative integration of advanced material science with ecological considerations. But the scalability of production and the economic feasibility of these sensors remain critical obstacles to address.

I am impressed and inspired by the ambition of this project to harmonize technology with natural ecosystems, and it is a thought-provoking perspective on sustainable sensor development.

Kalaya Kovidvisith

Co-founder FabCafe Bangkok

Nature-Made Future Prize

How can technology evolve to thrive in harmony with nature? "Return to the Soil" presents an inspiring answer through its innovative biodegradable sensors made from cellulose nanofibers. This project reimagines the lifecycle of electronics, demonstrating how cutting-edge advancements can align with nature’s regenerative systems rather than deplete them. By tackling the growing challenge of e-waste with a solution that seamlessly integrates into natural cycles, it sets a new standard for sustainable innovation. Its thoughtful design not only reduces environmental impact but also offers scalable potential for industries to embrace circular principles. This remarkable achievement exemplifies how progress and ecological stewardship can coexist.

Gwyneth Jong

Co-founder of FabCafe Kuala Lumpur

Decompose Into The Earth Prize

Electronic waste is rising at an alarming rate due to the rapid pace of technological advancement and the lack of proper recycling infrastructure for e waste. Traditional soil sensors which are often made of plastic and other non-biodegradable materials, contribute to the e-waste pollution. In contrast, this biodegradable solution eliminates that concern, aligning perfectly with the principles of a circular economy.

Nami Urano

Marketing Leader at FabCafe Kyoto, SPCS Community Manager

Sensing with Nature Prize

Currently, circular initiatives are spreading across the globe, and companies are trying to measure their environmental impact in every possible way. Moving forward, monitoring complex environmental factors like biodiversity will become even more prevalent, along with the development of new technologies. Considering a future where sensor devices left in harsh environments for extended periods could themselves become an environmental burden, this technology and perspective will play a crucial role in anticipating such challenges and supporting our efforts.