Electrochemical biosensor employing PbS colloidal quantum dots/Au nanospheres-modified electrode for ultrasensitive glucose detection

Zhao, Yunong; Huang, Jing; Huang, Qing; Tao, Yanbing; Gu, Ruixia; Li, Huayao; Liu, Huan

doi:10.1007/s12274-022-5138-0

Cited by 15 publications

(6 citation statements)

References 55 publications

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“…AMQDs were chosen due to their large surface area, good anticancer properties, and excellent biocompatibility, which facilitated Catl immobilization and H 2 O 2 detection in 0.1 M phosphate buffer (pH 7.5). In another study, a colloidal PbS QDs and gold nanosphere (GNSp) modified electrode was developed for the immobilization of GOD and a glucose biosensor was fabricated [ 115 ]. Here, PbS QDs were used due to their large surface area, higher number of active sites, and quantum confinement, while GNSp offered excellent conductivity and good biocompatibility toward biomolecules.…”

Section: Various Nanomaterial-modified Electrodesmentioning

confidence: 99%

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

Theyagarajan

Kim

2023

Biosensors

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Electrochemical biosensors are superior technologies that are used to detect or sense biologically and environmentally significant analytes in a laboratory environment, or even in the form of portable handheld or wearable electronics. Recently, imprinted and implantable biosensors are emerging as point-of-care devices, which monitor the target analytes in a continuous environment and alert the intended users to anomalies. The stability and performance of the developed biosensor depend on the nature and properties of the electrode material or the platform on which the biosensor is constructed. Therefore, the biosensor platform plays an integral role in the effectiveness of the developed biosensor. Enormous effort has been dedicated to the rational design of the electrode material and to fabrication strategies for improving the performance of developed biosensors. Every year, in the search for multifarious electrode materials, thousands of new biosensor platforms are reported. Moreover, in order to construct an effectual biosensor, the researcher should familiarize themself with the sensible strategies behind electrode fabrication. Thus, we intend to shed light on various strategies and methodologies utilized in the design and fabrication of electrochemical biosensors that facilitate sensitive and selective detection of significant analytes. Furthermore, this review highlights the advantages of various electrode materials and the correlation between immobilized biomolecules and modified surfaces.

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Section: Various Nanomaterial-modified Electrodesmentioning

confidence: 99%

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

Theyagarajan

Kim

2023

Biosensors

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“…Due to their extremely large surface area and dangling bonds, QDs represent zerodimensional semiconductor nanoparticles with diameters typically ranging from 1 to 20 nm and many active sites [89]. Typically, QDs are made of II, VI, B, or III, V, or their alloyed semiconductor materials [90].…”

Section: Quantum Dots (Qds)mentioning

confidence: 99%

Nanomaterials and Their Recent Applications in Impedimetric Biosensing

Štukovnik,

Fuchs-Godec,

Bren

2023

Biosensors

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Impedimetric biosensors measure changes in the electrical impedance due to a biochemical process, typically the binding of a biomolecule to a bioreceptor on the sensor surface. Nanomaterials can be employed to modify the biosensor’s surface to increase the surface area available for biorecognition events, thereby improving the sensitivity and detection limits of the biosensor. Various nanomaterials, such as carbon nanotubes, carbon nanofibers, quantum dots, metal nanoparticles, and graphene oxide nanoparticles, have been investigated for impedimetric biosensors. These nanomaterials have yielded promising results in improving sensitivity, selectivity, and overall biosensor performance. Hence, they offer a wide range of possibilities for developing advanced biosensing platforms that can be employed in various fields, including healthcare, environmental monitoring, and food safety. This review focuses on the recent developments in nanoparticle-functionalized electrochemical-impedimetric biosensors.

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“…Developing effective strategies, including microbial breeding, genetic engineering, and cell fusion technologies, can be used to construct mild immobilization techniques and improve the air permeability of microbial membranes, obtaining highly sensitive microbial nanosensors [101,102]. Microbial sensors are less sensitive to environmental changes than molecular-based biosensors [103]. Intact microbial living cells can be used as entities by modifying microbial genetic material.…”

Section: Electroactive Microorganisms In Microbial Sensorsmentioning

confidence: 99%

Electroactive Microorganisms in Advanced Energy Technologies

et al. 2023

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Large-scale production of green and pollution-free materials is crucial for deploying sustainable clean energy. Currently, the fabrication of traditional energy materials involves complex technological conditions and high costs, which significantly limits their broad application in the industry. Microorganisms involved in energy production have the advantages of inexpensive production and safe process and can minimize the problem of chemical reagents in environmental pollution. This paper reviews the mechanisms of electron transport, redox, metabolism, structure, and composition of electroactive microorganisms in synthesizing energy materials. It then discusses and summarizes the applications of microbial energy materials in electrocatalytic systems, sensors, and power generation devices. Lastly, the research progress and existing challenges for electroactive microorganisms in the energy and environment sectors described herein provide a theoretical basis for exploring the future application of electroactive microorganisms in energy materials.

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Electrochemical biosensor employing PbS colloidal quantum dots/Au nanospheres-modified electrode for ultrasensitive glucose detection

Cited by 15 publications

References 55 publications

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

Recent Developments in the Design and Fabrication of Electrochemical Biosensors Using Functional Materials and Molecules

Nanomaterials and Their Recent Applications in Impedimetric Biosensing

Electroactive Microorganisms in Advanced Energy Technologies

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