A review of nanomaterials for biosensing applications

Journal of Materials Chemistry B, Год журнала: 2023, Номер 12(5), С. 1168 - 1193

Опубликована: Дек. 21, 2023

A biosensor is a device that reacts with the analyte to be analyzed, detects its concentration, and generates readable information, which plays an important role in medical diagnosis, detection of physiological indicators, disease prevention. Nanomaterials have received increasing attention fabrication improvement biosensors due their unique physicochemical optical properties. In this paper, properties nanomaterials such as size effect, electrical properties, advantages field biosensing are briefly summarized, application can effectively improve sensitivity reduce limit biosensors. The commonly used gold nanoparticles (AuNPs), carbon nanotubes (CNTs), quantum dots (QDs), graphene, magnetic nanobeads for applications also reviewed. Besides, two main types using involved construction working principles described, toxicity biocompatibility future direction nanomaterial discussed.

Язык: Английский

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Chemically modified DNAzymes-based electrochemical sensor for binary and highly sensitive detection of reactive oxygen species

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A chemically modified DNAzyme-based electrochemical sensor was developed for binary and highly sensitive detection of reactive oxygen species.

Язык: Английский

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Chemiluminescent transition metal complexes: Mechanisms and applications

Coordination Chemistry Reviews, Год журнала: 2025, Номер 530, С. 216495 - 216495

Опубликована: Фев. 5, 2025

Язык: Английский

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Metal Nanoclusters in Point-of-Care Sensing and Biosensing Applications

ACS Applied Nano Materials, Год журнала: 2023, Номер 6(14), С. 12609 - 12672

Опубликована: Июль 19, 2023

Nanoclusters are nanostructures consisting of few to tens atoms which have attracted great interest from the scientific community due their applications in a myriad fields, catalysis biomedical applications. Due discrete energy levels resulting ultrasmall size, nanoclusters exhibit distinctly different chemical, optical, and electrical properties compared with larger nanoparticle counterparts. Unlike previously reported dimensions (1–10 nm), typically single advantage (for example, high conductivity or optical properties), can be used as signaling and/or reaction-accelerating materials almost all sensing assays enhanced properties. among most promising luminescent emitters (electrochemiluminescent, fluorescent, chemiluminescent, colorimetry) quantum yield better biocompatibility than conventional emitters. Considering excelent biocompatibility, tailored modification, desirable electrochemical tunability, opened new horizons designing high-performance biosensing devices. In addition, they represent excellent photoelectrochemical behaviors improved functionality environmentally friendly traditional compounds. This review discusses recent advances nanoclusters, biosensing, current limitations, prospects overcome these challenges. The present study gives much brighter vision that one by particular advantages role developing frameworks.

Язык: Английский

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Colorimetric evaluation of total antioxidant capacity based on peroxidase-like nonstoichiometric Cu2-Se nanoparticles

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 398, С. 134794 - 134794

Опубликована: Окт. 14, 2023

Язык: Английский

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Molybdenum disulfide nanosheet induced reactive oxygen species for high-efficiency luminol chemiluminescence

Analytica Chimica Acta, Год журнала: 2024, Номер 1295, С. 342324 - 342324

Опубликована: Фев. 3, 2024

Язык: Английский

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Carbohydrate polymer-supported metal and metal oxide nanoparticles for constructing electrochemical sensors

Materials Advances, Год журнала: 2023, Номер 5(1), С. 68 - 82

Опубликована: Ноя. 30, 2023

Metal- and metal oxide-carbohydrate polymers are considered a promising tool for electrochemical detection of biological analytes water pollutants.

Язык: Английский

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DNA-mediated chemiluminescence bioassays

TrAC Trends in Analytical Chemistry, Год журнала: 2024, Номер 175, С. 117720 - 117720

Опубликована: Апрель 18, 2024

Язык: Английский

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Rational construction of Co doped NiO nanotubes as peroxidase mimicking towards total antioxidant capacity assay of fruits

Microchemical Journal, Год журнала: 2025, Номер unknown, С. 112664 - 112664

Опубликована: Янв. 1, 2025

Язык: Английский

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Improved chemiluminescence behavior of Cu-etched sulfur quantum dots for Rizatriptan sensitive assay

Journal of Analytical Science & Technology, Год журнала: 2025, Номер 16(1)

Опубликована: Апрель 1, 2025

Abstract Altering the electronic structure and surface functional groups of pure-elemental quantum dots by heteroatom doping is a relatively new approach to enhance intensity weak chemiluminescence (CL) systems fabricate more sensitive sensors for determination analytes. The current study focused on improving CL behavior sulfur (SQDs) via etching them cooper ion (Cu 2+) sensitize well-known Pyrogallol/IO 4 system anti-migraine compound Rizatriptan in real samples based its quenching effect system. SQDs were synthesized simple hydrothermal method etched using Cu 2+ manipulate their optical properties fluorescence yield. resulting Cu-etched (Cu-SQDs) characterized TEM, FT-IR, UV–Vis. A significant enhancement 150 300-fold was observed upon application Cu-SQDs, respectively. mechanism corresponding emitting species investigated. linear concentration range proposed 0.05–20 μM with detection limit 20 nM (S/N = 3). accuracy evaluated spiking known concentrations analyte calculated percent recoveries are 94.51–104.05% indicating good analytical performance developed method.

Язык: Английский

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