Graphene Aerogel Based Nanogenerators for Health Monitoring

Year 2021, Issue: 21, 665 - 668, 31.01.2021

Onur Ergen

https://doi.org/10.31590/ejosat.863610

Abstract

Artificial intelligence (AI) and machine learning (ML) lead a new era in remote health monitoring and preventive care, while making ZnO based strain sensor and nanogenerators a very attractive data collection tool. Here, we demonstrate flexible piezotronics strain sensor/nanogenerator, based on chemically modified graphene aerogels to monitor human hand/finger motions as well as gait asymmetries. The I-V characteristic of the sensor shows high sensitivity towards detection of human motion with a good gauge factor of as high as 95 has been demonstrated.

Keywords

Nanogenerator, Wearable electronics, Strain sensor, Piezotronics, Piezoelectric, Sensors, ZnO nanoparticles, Aerogels, Graphene, Health monitoring

Supporting Institution

The Scientific and Technological Research Council of Turkey (TUBITAK)

Project Number

118M061

Thanks

This research was supported in part by The Scientific and Technological Research Council of Turkey (TUBITAK) and TURKCELL, which provided for the design of the experiment and electrical measurements; Surface Science and Technology Center at Koc University provided material and electrical characterization, Prof. Uğur Unal group’s provide graphene aerogel growth. O.E. acknowledges the support of the University of California at Berkeley and Prof. Alex Zettl Lab for validation of electrical characterization. O.E. acknowledges the support of TURKCELL as well as Isıl Ozkan and Tahsin S. Yaman.

Sağlık İzleme için Grafen Aerojel Bazlı Nanojeneratörler

Abstract

Yapay zeka (AI) ve makine öğrenimi (ML), uzaktan sağlık izleme ve önleyici bakımda yeni bir döneme öncülük ederken, ZnO tabanlı gerinim sensörünü ve nanojeneratörleri çok çekici bir veri toplama aracı haline getiriyor. Burada, insan eli / parmak hareketlerini ve yürüyüş asimetrilerini izlemek için kimyasal olarak modifiye edilmiş grafen aerojellere dayanan esnek piezotronik gerinim sensörü / nanojeneratör gösteriyoruz. Sensörün I-V özelliği, insan hareketinin algılanmasına karşı yüksek hassasiyet , 95 kadar, gösterge faktörü bulunmuştur.

Keywords

nanogenerator, wearable electronics, strain sensor, piezotronics, piezoelectric, sensors, ZnO nanoparticles, aerogels, graphene, health monitoring

Project Number

118M061

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