Materials Matter: Advancing Sensor Science through Innovation in Materials Chemistry

Mirica, Katherine A.

doi:10.1021/acssensors.2c02675

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…Portable PEC biosensors have rapidly set a new research tide as a novel diagnostic technology due to its advantages of easy portability, high sensitivity, good selectivity, and ease of operation, which has resulted in many scholars devoting themselves to the development of portable PEC biosensors [24,25]. The critical choices for constructing portable PEC biosensors are rationalized portable extended fabrication techniques as well as the design and selection of bandgap-matched photoelectrically active materials [26,27].…”

Section: Introductionmentioning

confidence: 99%

Recent advances on portable photoelectrochemical biosensors for diagnostics

Wu,

Tang

2023

Electroanalysis

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Efficient and accurate diagnostic methods are important for human health monitoring and prevention of major diseases, so the establishment of efficient and convenient testing methods for clinical diagnosis is urgent. Photoelectrochemical (PEC) biosensors have attracted much attention because of their high sensitivity, low detection background, and especially the advantages of combining photoexcitation and electrochemical detection. With the rapid development of integrated circuit technology many wireless transmissions of highly aggregated portable micro devices are manufactured, its small size, easy to carry, and the ability to visualize the results of the test is shown to be the potential for the application of such devices. This review aims to cover recent advances in PEC biosensing within the field of portable detection, including the principles of PEC biosensors, common photovoltaic materials, and scalable fabrication techniques for portable PEC biosensing. Future prospects in the field are also discussed.

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Section: Introductionmentioning

confidence: 99%

Recent advances on portable photoelectrochemical biosensors for diagnostics

Wu,

Tang

2023

Electroanalysis

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A Dye‐Sensitized Sensor for Oxygen Detection under Visible Light

Wettstein,

Specht,

Kesselring

et al. 2024

Advanced Science

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Sensors that can accurately assess oxygen (O2) concentrations in real time are crucial for a wide range of applications spanning personal health monitoring, environmental protection, and industrial process development. Here a high‐performance chemiresistive sensor that allows for the rapid detection of O2 at room temperature under visible light illumination is described. Inspired by the operating principles of dye‐sensitized solar cells, the chemiresistor is based on a single‐walled carbon nanotube‐titania hybrid (SWCNT‐TiO2) bearing a molecular Re‐based photosensitizer [(Pbpy)(CO)3ReBr] (Pbpy = 4,4′‐[P(O)(OH)2]2‐2,2′‐bipyridine). The resulting SWCNT‐TiO2‐Re composite undergoes photoinduced charge transfer that is sensitive to ppb levels of O2, thereby yielding a rapid and reversible chemiresistive response. Owing to its unique mode of operation and robust components, the sensor shows a high degree of selectivity for O2 over a range of interferants, humidity tolerance, and multimonth benchtop stability. The approach presented herein demonstrates the translatability of concepts in light harvesting to the development of robust, rapid, and low‐power sensing technologies.

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Hierarchical Porous Biowaste‐Based Dual Humidity/Pressure Sensor for Robotic Tactile Sensing, Sustainable Health, and Environmental Monitoring

Rahman,

Khan,

Iqbal

et al. 2024

Adv Energy and Sustain Res

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A crucial tradeoff between material efficacy and environmental impact is often encountered in the development of high‐performance sensors. The use of rare‐earth elements or intricate fabrication techniques is sometimes needed for conventional sensing materials, posing concerns regarding sustainability. Exploring the potential of tomato peel (TP) as a dual‐purpose sensing dielectric layer for pressure and humidity monitoring is a paradigm shift, capitalizing on its porous structure and hygroscopic nature. TP‐based humidity sensor (TP‐HS) exhibits impressive results, with a wide humidity sensing range (5%–95%), fast response/recovery time (6.5/9 s), a high sensitivity (12 500 pF %RH−1), and a high stability (30 days). Additionally, TP‐based pressure sensor (TP‐PS) also shows excellent performance in accurately sensing pressure changes in a wide range (0–196 kPa). TP‐HS can easily distinguish between breathing rates (normal, fast, and slow) and moisture content present in different moisturizers (aloe vera and sanitizer) along with its successful use for proximity sensing. Alternatively, TP‐PS demonstrates weight measurement (490 and 980 N), grip recognition (measuring the pressure exerted by each finger), and gesture detection (by monitoring multiple bending angles 0°, 30°, 50°, and 80°). A wearable, biocompatible dual sensor based on a promising sustainable material for environmental, robotic, and health monitoring applications is successfully demonstrated.

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Materials Matter: Advancing Sensor Science through Innovation in Materials Chemistry

Cited by 5 publications

References 16 publications

Recent advances on portable photoelectrochemical biosensors for diagnostics

Recent advances on portable photoelectrochemical biosensors for diagnostics

A Dye‐Sensitized Sensor for Oxygen Detection under Visible Light

Hierarchical Porous Biowaste‐Based Dual Humidity/Pressure Sensor for Robotic Tactile Sensing, Sustainable Health, and Environmental Monitoring

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