Electrochemical sensor array with nanoporous gold nanolayer and ceria@gold corona-nanocomposites enhancer integrated into microfluidic for simultaneous ultrasensitive lead ion detection

Huang, Yuzhen; Han, Yingkuan; Gao, Yakun; Gao, Junkai; Ji, Hao; He, Qihang; Tu, Jianbo; Xu, Guangzhi; Han, Lin

doi:10.1016/j.electacta.2021.137921

Cited by 14 publications

(6 citation statements)

References 35 publications

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“…The ceria@AuNPs nanocomposite that acted as a signal enhancer could improve the electrochemical sensitivity. [145] Pu et al proposed a flexible electrochemical sensor, which could be developed for continuous glucose monitoring. The working electrode adopted composite nanostructures based on the graphene layer and AuNPs.…”

Section: Aunwsmentioning

confidence: 99%

Gold Nanomaterials‐Implemented Wearable Sensors for Healthcare Applications

Xianyu

2022

Adv Funct Materials

116

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Wearable sensors have drawn considerable interest for healthcare applications due to their low cost, flexibility, lightweight, and biocompatibility. Gold nanomaterials possess excellent properties such as high conductivity/ flexibility, facile surface functionalization, biocompatibility, wide electrochemical sensing window, and extraordinary optical response, making them excellent candidates for wearable sensors. By implementing gold nanomaterials such as gold nanoparticles (AuNPs) and gold nanowires (AuNWs), great efforts are devoted to fabricate wearable sensors with rational designs for healthcare applications. This review focuses on recent advances in gold nanomaterials-implemented wearable sensors, particularly the fabrication method, the working mechanism, and the performance of these wearable sensors in healthcare-related applications. Wearable sensors including strain/pressure sensors, humidity/gas sensors, electrochemical sensors, and colorimetric sensors are discussed and highlighted. Meanwhile, future prospects and challenges are also discussed on the development of gold nanomaterials-implemented wearable sensors.

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Section: Aunwsmentioning

confidence: 99%

Gold Nanomaterials‐Implemented Wearable Sensors for Healthcare Applications

Xianyu

2022

Adv Funct Materials

116

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“…Similarly, the combined methodology of UV-Vis SEC and microfluidics has been widely used in biotechnology, catalysis, environmental protection, and others [ 7 , 171 , 172 , 173 , 174 ]. However, compared with the SERS/Raman SEC, the employment of UV-Vis SEC in microfluidics is more used, which is probably because the electrode substrate can be more easily prepared.…”

Section: Sec Techniques’ Applications In Microfluidicsmentioning

confidence: 99%

“…SEC is attracting intensive interest for various research in analytical fields, ranging from biology [ 1 ] to chemistry [ 2 ], material engineering [ 3 , 4 ], and others [ 5 ]. The schematic diagrams of the SEC technique are shown in Figure 1 a. Electrochemical techniques, such as cyclic voltammetry (CV), differential pulse voltammetry (DPV), or electrochemical impedance spectroscopy (EIS), have been employed in SEC techniques [ 6 , 7 ]. Similarly, ultraviolet-visible (UV-Vis), Raman/surface-enhanced Raman spectroscopy (SERS), and nuclear magnetic resonance (NMR) are frequently used spectroscopy techniques.…”

Section: Introductionmentioning

confidence: 99%

Recent State and Challenges in Spectroelectrochemistry with Its Applications in Microfluidics

Chande

Cheng

et al. 2023

Micromachines

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This review paper presents the recent developments in spectroelectrochemical (SEC) technologies. The coupling of spectroscopy and electrochemistry enables SEC to do a detailed and comprehensive study of the electron transfer kinetics and vibrational spectroscopic fingerprint of analytes during electrochemical reactions. Though SEC is a promising technique, the usage of SEC techniques is still limited. Therefore, enough publicity for SEC is required, considering the promising potential in the analysis fields. Unlike previously published review papers primarily focused on the relatively frequently used SEC techniques (ultraviolet-visible SEC and surface-enhanced Raman spectroscopy SEC), the two not-frequently used but promising techniques (nuclear magnetic resonance SEC and dark-field microscopy SEC) have also been studied in detail. This review paper not only focuses on the applications of each SEC method but also details their primary working mechanism. In short, this paper summarizes each SEC technique’s working principles, current applications, challenges encountered, and future development directions. In addition, each SEC technique’s applicative research directions are detailed and compared in this review work. Furthermore, integrating SEC techniques into microfluidics is becoming a trend in minimized analysis devices. Therefore, the usage of SEC techniques in microfluidics is discussed.

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“…Microfluidic chips featured with miniaturization, integration, and multifunction have been widely used in environmental monitoring [ 59 , 60 ], food safety [ 61 , 62 , 63 ], medical diagnosis [ 64 , 65 , 66 ], etc. Recently, microfluidic chips are increasingly exploited for bioaerosol collection, which either relied on different structures of the microfluidic chips, such as the staggered herringbone for generation of the chaotic vortex [ 67 ], the curved, circle or spiral channels for production of the centrifugal forces [ 68 ], or combined with the traditional bioaerosol collection methods to develop simpler, inexpensive, and portable methods [ 69 ].…”

Section: Bioaerosol Collectionmentioning

confidence: 99%

Challenges and Perspectives for Biosensing of Bioaerosol Containing Pathogenic Microorganisms

Lei

et al. 2021

Micromachines

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As an important route for disease transmission, bioaerosols have received increasing attention. In the past decades, many efforts were made to facilitate the development of bioaerosol monitoring; however, there are still some important challenges in bioaerosol collection and detection. Thus, recent advances in bioaerosol collection (such as sedimentation, filtration, centrifugation, impaction, impingement, and microfluidics) and detection methods (such as culture, molecular biological assay, and immunological assay) were summarized in this review. Besides, the important challenges and perspectives for bioaerosol biosensing were also discussed.

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Electrochemical sensor array with nanoporous gold nanolayer and ceria@gold corona-nanocomposites enhancer integrated into microfluidic for simultaneous ultrasensitive lead ion detection

Cited by 14 publications

References 35 publications

Gold Nanomaterials‐Implemented Wearable Sensors for Healthcare Applications

Gold Nanomaterials‐Implemented Wearable Sensors for Healthcare Applications

Recent State and Challenges in Spectroelectrochemistry with Its Applications in Microfluidics

Challenges and Perspectives for Biosensing of Bioaerosol Containing Pathogenic Microorganisms

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