Titanium dioxide based bioelectric sensor for the acquisition of electrocardiogram signals

Pradhan, Uma Ullas; Reddy, N. Ramesh; Chandrashekar, Kabbur Thippanna; Mohan, Chander

doi:10.1016/j.microc.2020.105656

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…For example, flexible wearable strain sensors are attached to the human body to monitor joint movement information, and inertial sensors are used together to improve training performances [ 5 ] and warn injury [ 6 ] during movement. Flexible wearable sensors can monitor the cardiovascular vital signs continuously and in real-time, including ECG [ 7 , 8 ], heart rate [ 9 , 10 ], blood pressure [ 11 ], blood oxygen [ 12 ], and blood glucose [ 13 , 14 ]. Advances in new materials, advanced manufacturing, and flexible electronics technologies have improved comfort, real-time, and precision and expanded the range of applications.…”

Section: Introductionmentioning

confidence: 99%

A Review of Recent Advances in Vital Signals Monitoring of Sports and Health via Flexible Wearable Sensors

Sun

Guo

Yang

et al. 2022

Sensors

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In recent years, vital signals monitoring in sports and health have been considered the research focus in the field of wearable sensing technologies. Typical signals include bioelectrical signals, biophysical signals, and biochemical signals, which have applications in the fields of athletic training, medical diagnosis and prevention, and rehabilitation. In particular, since the COVID-19 pandemic, there has been a dramatic increase in real-time interest in personal health. This has created an urgent need for flexible, wearable, portable, and real-time monitoring sensors to remotely monitor these signals in response to health management. To this end, the paper reviews recent advances in flexible wearable sensors for monitoring vital signals in sports and health. More precisely, emerging wearable devices and systems for health and exercise-related vital signals (e.g., ECG, EEG, EMG, inertia, body movements, heart rate, blood, sweat, and interstitial fluid) are reviewed first. Then, the paper creatively presents multidimensional and multimodal wearable sensors and systems. The paper also summarizes the current challenges and limitations and future directions of wearable sensors for vital typical signal detection. Through the review, the paper finds that these signals can be effectively monitored and used for health management (e.g., disease prediction) thanks to advanced manufacturing, flexible electronics, IoT, and artificial intelligence algorithms; however, wearable sensors and systems with multidimensional and multimodal are more compliant.

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Section: Introductionmentioning

confidence: 99%

A Review of Recent Advances in Vital Signals Monitoring of Sports and Health via Flexible Wearable Sensors

Sun

Guo

Yang

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…Production cost, complexity, and reproducibility as well as constraints in electrode shape, mechanical characteristics, and durability have limited these materials to prototypes thus far. Coated elastomers have been suggested primarily with Ag [24], Ag/AgCl [11,13,16,25], gold (Au) [26], and titanium (Ti) [17,27,28]. While silverbased coatings are known to provide excellent electrochemical and thus bioelectric signal characteristics, their biocompatibility in long-term repetitive applications remains an often discussed and questioned limitation [29].…”

Section: Introductionmentioning

confidence: 99%

Me-Doped Ti–Me Intermetallic Thin Films Used for Dry Biopotential Electrodes: A Comparative Case Study

Lopes

Fiedler

Rodrigues

et al. 2021

Sensors

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In a new era for digital health, dry electrodes for biopotential measurement enable the monitoring of essential vital functions outside of specialized healthcare centers. In this paper, a new type of nanostructured titanium-based thin film is proposed, revealing improved biopotential sensing performance and overcoming several of the limitations of conventional gel-based electrodes such as reusability, durability, biocompatibility, and comfort. The thin films were deposited on stainless steel (SS) discs and polyurethane (PU) substrates to be used as dry electrodes, for non-invasive monitoring of body surface biopotentials. Four different Ti–Me (Me = Al, Cu, Ag, or Au) metallic binary systems were prepared by magnetron sputtering. The morphology of the resulting Ti–Me systems was found to be dependent on the chemical composition of the films, specifically on the type and amount of Me. The existence of crystalline intermetallic phases or glassy amorphous structures also revealed a strong influence on the morphological features developed by the different systems. The electrodes were tested in an in-vivo study on 20 volunteers during sports activity, allowing study of the application-specific characteristics of the dry electrodes, based on Ti–Me intermetallic thin films, and evaluation of the impact of the electrode–skin impedance on biopotential sensing. The electrode–skin impedance results support the reusability and the high degree of reliability of the Ti–Me dry electrodes. The Ti–Al films revealed the least performance as biopotential electrodes, while the Ti–Au system provided excellent results very close to the Ag/AgCl reference electrodes.

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“…To overcome the biocompatibility effects, recent advances in electrode materials have been made, in order to achieve comfortable, flexible and biocompatible electrodes. A wide variety of materials have been employed, such as carbon nanomaterials [1], carbon nanotubes [2], metallic nanoparticles [3], inorganic semiconductors [4], and electroconductive polymers. Conductive polymers are very promising for electrode materials because they are soft, electrically conductive, low cost, easily synthesized, and biocompatible with human tissues [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Biomimetic Synthesized Conductive Copolymer EDOT-Pyrrole Electrodes for Electrocardiogram Recording in Humans

Martínez-Cartagena¹,

Bernal-Martínez²,

Aranda-Sánchez³

et al. 2021

MSCE

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Titanium dioxide based bioelectric sensor for the acquisition of electrocardiogram signals

Cited by 6 publications

References 32 publications

A Review of Recent Advances in Vital Signals Monitoring of Sports and Health via Flexible Wearable Sensors

A Review of Recent Advances in Vital Signals Monitoring of Sports and Health via Flexible Wearable Sensors

Me-Doped Ti–Me Intermetallic Thin Films Used for Dry Biopotential Electrodes: A Comparative Case Study

Biomimetic Synthesized Conductive Copolymer EDOT-Pyrrole Electrodes for Electrocardiogram Recording in Humans

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