Plasmonic nanoparticle sensors: current progress, challenges, and future prospects

Nanoscale Horizons, Journal Year: 2024, Volume and Issue: 9(12), P. 2085 - 2166

Published: Jan. 1, 2024

This comprehensive review summarizes the past, present, and future of plasmonic NP-based sensors in terms different sensing platforms, chemical biological analytes, expected technologies.

Language: Английский

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Process optimization for gold nanoparticles biosynthesis by Streptomyces albogriseolus using artificial neural network, characterization and antitumor activities

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 25, 2024

Gold nanoparticles (GNPs) are highly promising in cancer therapy, wound healing, drug delivery, biosensing, and biomedical imaging. Furthermore, GNPs have anti-inflammatory, anti-angiogenic, antioxidants, anti-proliferative anti-diabetic effects. The present study presents an eco-friendly approach for biosynthesis using the cell-free supernatant of Streptomyces albogriseolus as a reducing stabilizing agent. biosynthesized maximum absorption peak at 540 nm. TEM images showed that ranged size from 5.42 to 13.34 nm had spherical shape. negatively charged surface with Zeta potential - 24.8 mV. FTIR analysis identified several functional groups including C-H, -OH, C-N, amines amide groups. crystalline structure was verified by X-ray diffraction well-defined distinct rings observed selected area electron analysis. To optimize S. albogriseolus, 30 experimental runs were conducted central composite design (CCD). artificial neural network (ANN) employed analyze, validate, predict compared CCD. yield (778.74 μg/mL) obtained concentration 70%, HAuCl

Language: Английский

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Artificial Intelligence Enabled Biomineralization for Eco‐Friendly Nanomaterial Synthesis: Charting Future Trends

Nano Select, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

ABSTRACT The applications of nanoparticles (NPs) have shown tremendous growth during the last decade in field biomedicine. Although chemical and physical methods dominate large‐scale NP synthesis, such are also known for their adverse impact on environment health. In contrast, use biological systems provides a sustainable alternative producing functional NPs by biomineralization process. transformative power artificial intelligence (AI) has been proven prudent diagnosis, drug development, therapy, clinical decision‐making. AI can be utilized tailored design, scale‐up biomedical applications. present review an overview process its advantages over other eco‐friendly synthesis opportunities. Specific emphasis is provided application cancer therapy how biologically compatible improve management. Finally, to best our knowledge, potential integrating comprehensively analyzed first time. Additionally, help surpass conventionally synthesized toxicity toxicology material science provided.

Language: Английский

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Optical Bionanosensors for Sepsis Diagnostics

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Sepsis is a global health challenge, characterized by dysregulated immune response, leading to organ dysfunction and death. Despite advances in medical care, sepsis continues claim significant toll on human lives, with mortality rates from 10-25% for 30-50% septic shock, making it cause of death worldwide. Current diagnostic methods rely clinical signs, laboratory parameters, or microbial cultures suffer delays inaccuracies. Therefore, there pressing need novel tools that can rapidly accurately identify sepsis. This review highlights biosensor development could ultimately lead faster more accurate diagnostics. The focus nanomaterial-based optical approaches promise rapid diagnostics without the large equipment trained personnel. An overview provided, highlighting potential molecular targets challenges they present assay development. requirements an ideal point-of-care test (POC) are discussed, including speed, simplicity, cost-effectiveness. Different nanomaterials suitable various detection reviewed innovative nanosensors discussed diagnostics, focusing chemical design increase selectivity multiplexing.

Language: Английский

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Metallic nanoparticles unveiled: Synthesis, characterization, and their environmental, medicinal, and agricultural applications

Talanta, Journal Year: 2024, Volume and Issue: 280, P. 126790 - 126790

Published: Aug. 29, 2024

Language: Английский

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Aggregation‐based analytical chemistry in point‐of‐care nanosensors

Aggregate, Journal Year: 2024, Volume and Issue: 5(5)

Published: April 23, 2024

Abstract It is crucial to realize the point‐of‐care (POC) testing of harmful analytes, capable saving limited agricultural resources, assisting environmental remediation, ensuring food safety, and enabling early disease diagnosis. Compared with other conventional POC sensing strategies, aggregation‐based analytical chemistry facilitates practical‐oriented development nanosensors by altering aggregation status nanoprobes through action multiple aggregation‐induced “forces” originating from targets. Herein, we have proceeded a comprehensive review focusing on in nanosensors, covering “forces”, signal transductions, nanosensing their applications biomolecular monitoring, safety analysis, monitoring. Finally, challenges existing practical been further proposed improve applications, expect our can speed up cost‐effective, readily deployable, time‐efficient chemistry.

Language: Английский

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Chromogenic Mechanisms of Colorimetric Sensors Based on Gold Nanoparticles

Biosensors, Journal Year: 2023, Volume and Issue: 13(8), P. 801 - 801

Published: Aug. 10, 2023

The colorimetric signal readout method is widely used in visualized analyses for its advantages, including visualization of test results, simple and fast operations, low detection cost response time. Gold nanoparticles (Au NPs), which not only exhibit enzyme-like activity but also have the advantages tunable localized surface plasmon resonance (LSPR), high stability, good biocompatibility easily modified properties, provide excellent platforms construction sensors. They are environmental monitoring, biomedicine, food industry other fields. This review focuses on chromogenic mechanisms sensors based Au NPs adopting two different sensing strategies summarizes significant advances NP-based with LSPR characteristics. In addition, properties classified into four modulation methods: aggregation, modification, deposition etching, current status visual various analytes discussed. Finally, further discusses limitations promising prospects as sensors, guiding design novel

Language: Английский

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Recent progress on structural coloration

Photonics Insights, Journal Year: 2024, Volume and Issue: 3(2), P. R03 - R03

Published: Jan. 1, 2024

Structural coloration generates colors by the interaction between incident light and micro- or nano-scale structures. It has received tremendous interest for decades, due to advantages including robustness against bleaching environmentally friendly properties (compared with conventional pigments dyes). As a versatile strategy, tuning of structural based on nanoscale photonic structures been extensively explored can enable broad range applications displays, anti-counterfeiting, coating. However, scholarly research had limited impact commercial products because their disadvantages in cost, scalability, fabrication. In this review, we analyze key challenges opportunities development colors. We first summarize fundamental mechanisms design strategies while reviewing recent progress realizing dynamic coloration. The promising potential optical information processing displays are also discussed elucidating most prominent that prevent them from translating into technologies market. Finally, address new underexplored community but be achieved through multidisciplinary within emerging areas.

Language: Английский

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Quantifying Shape Transition in Anisotropic Plasmonic Nanoparticles through Geometric Inversion. Application to Gold Bipyramids

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(14), P. 3914 - 3922

Published: April 2, 2024

Unraveling the nuanced interplay between morphology and optical properties of plasmonic nanoparticles is crucial for targeted applications. Managing relationship becomes significantly complex when dealing with anisotropic that defy a simple description using parameters like length, width, or aspect ratio. This complexity requires computationally intensive numerical modeling advanced imaging techniques. To address these challenges, we propose detailed structural parameter determination gold their two-dimensional projections (e.g., micrographs). Employing bipyramids (AuBPs) as model morphology, can determine three-dimensional geometry extract features comparison experimental data. validate our inversion model's effectiveness, apply it to derive AuBPs undergoing shape modification through oxidative etching. In summary, findings allow precise characterization during transitions, potentially enhancing comprehension nanocrystal growth optimizing material design various

Language: Английский

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Gold nanoparticles with natural polymer synthesized by plasma–liquid interactions: Size-control, characterization and colorimetric detection of melamine based on the size effect of gold nanoparticles

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 37, P. 101113 - 101113

Published: Feb. 1, 2024

Language: Английский

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