Recent advances of Au@Ag core–shell SERS‐based biosensors

Exploration, Journal Year: 2023, Volume and Issue: 3(1)

Published: Feb. 1, 2023

The methodological advancements in surface-enhanced Raman scattering (SERS) technique with nanoscale materials based on noble metals, Au, Ag, and their bimetallic alloy Au-Ag, has enabled the highly efficient sensing of chemical biological molecules at very low concentration values. By employing innovative various type Ag nanoparticles especially, high efficiency Au@Ag nanomaterials as substrate SERS biosensors have revolutionized detection components including; proteins, antigens antibodies complex, circulating tumor cells, DNA, RNA (miRNA), etc. This review is about SERS-based Au/Ag enhanced activity by focusing different factors related to them. emphasis this research describe recent developments field conceptual behind Furthermore, article we apex understanding impact variation basic features like effects size, shape varying lengths, thickness core-shell influence large-scale magnitude morphology. Moreover, detailed information applications these importantly receptor binding domain (RBD) protein COVID-19 provided.

Language: Английский

---

The role of DNA-based biosensors in species identification for food authenticity assessment

Trends in Food Science & Technology, Journal Year: 2024, Volume and Issue: 145, P. 104350 - 104350

Published: Jan. 24, 2024

The increasing incidence of fraud demands for new robust methods to assess food authenticity. Over the past decades, biosensors have emerged as practical testing devices with exponential growth in diverse research fields. Their numerous advantages contributed their implementation sector, applications ranging from identification pathogens, chemical compounds and allergens spoilage detection Genetically Modified Organisms (GMO) various products. This review explores development DNA-based authenticity assessment a focus on species identification. role versatility nucleic acids analytes biorecognition elements are discussed, available conventional presented. main transducing principles involved biosensing, use nanomaterials briefly introduced. application over last decade is shown, highlighting innovations how these improvement performance. final section addresses different technologies can influence biosensor manufacturing optimization, so become established rapid on-site used In little has been carried out regarding biosensors. mainly aimed at meat derived products, although other equally relevant products should be targeted. Several recent technological advances successfully integrated into must further explored promote establishment assessment.

Language: Английский

---

Advances in multiplexed photoelectrochemical sensors for multiple components

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159319 - 159319

Published: Jan. 1, 2025

Language: Английский

---

Highly Sensitive Detection and Molecular Subtyping of Breast Cancer Cells Using Machine Learning-assisted SERS Technology

Nano Biomedicine and Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

---

Signal Amplification Strategy Design in Nanozyme‐Based Biosensors for Highly Sensitive Detection of Trace Biomarkers

Small Methods, Journal Year: 2023, Volume and Issue: 7(11)

Published: Oct. 10, 2023

Abstract Nanozymes show great promise in enhancing disease biomarker sensing by leveraging their physicochemical properties and enzymatic activities. These qualities facilitate signal amplification matrix effects reduction, thus boosting performance. In this review, recent studies from the last five years, concentrating on detection improvement through nanozyme‐based biosensing are examined. This enhancement primarily involves modulations of size, morphology, doping, modification, electromagnetic mechanisms, electron conduction efficiency, surface plasmon resonance nanozymes for increased sensitivity. addition, a comprehensive description synthesis tuning strategies employed has been provided. includes detailed elucidation catalytic mechanisms alignment with fundamental principles enhanced technology, accompanied presentation quantitatively analyzed results. Moreover, diverse applications strip sensing, colorimetric electrochemical surface‐enhanced Raman scattering have outlined. Additionally, limitations, challenges, corresponding recommendations concerning application summarized. Furthermore, insights offered into future development outlook biosensing. review aims to serve not only as reference sensitivity biosensors but also catalyst exploring nanozyme broader

Language: Английский

---

Machine learning assisted dual-modal SERS detection for circulating tumor cells

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 268, P. 116897 - 116897

Published: Oct. 30, 2024

Language: Английский

---

Aptamer-free upconversion nanoparticle/silk biosensor system for low-cost and highly sensitive detection of antibiotic residues

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 258, P. 116335 - 116335

Published: April 25, 2024

Language: Английский

---

Aptamer-conjugated gold nanoparticles for portable, ultrasensitive naked-eye detection of C-reactive protein based on the Tyndall effect

Analytica Chimica Acta, Journal Year: 2024, Volume and Issue: 1307, P. 342626 - 342626

Published: April 22, 2024

C-reactive protein (CRP) represents an early clinical biomarker that indicates the presence of inflammatory or infectious conditions in human body. Today's procedures approved by Food and Drug Administration (FDA) imply expensive equipment highly trained personnel to perform test. Therefore, a new diagnostic method with high detection efficiency less cost is urgently needed for delivering rapid timely results point-of-care (POC) service.

Language: Английский

---

Raman spectroscopy for esophageal tumor diagnosis and delineation using machine learning and the portable Raman spectrometer

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: 317, P. 124461 - 124461

Published: May 12, 2024

Language: Английский

---

Green Synthesis of Uncoated and Olive Leaf Extract-Coated Silver Nanoparticles: Sunlight Photocatalytic, Antiparasitic, and Antifungal Activities

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(6), P. 3082 - 3082

Published: March 7, 2024

The circular economy, which attempts to decrease agricultural waste while also improving sustainable development through the production of products from and by-products, is currently one main objectives environmental research. Taking this view, study used a green approach synthesize two forms silver nanoparticles: coated nanoparticles with olive leaf extract (Ag-olive) uncoated pure (Ag-pure), were produced by calcination Ag-olive at 550 °C. fabricated characterized variety physicochemical techniques, including high-performance liquid chromatography (HPLC), thermal gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM). Adult ticks (Hyalomma dromedarii) (Acari: Ixodidae) in evaluate antiparasitic activity synthesized extract. Furthermore, antifungal was evaluated against Aspergillus aculeatus strain N (MW958085), Fuserium oxysporum (MT550034), Alternaria tenuissiuma (MT550036). In both tests, as-synthesized showed higher inhibition than Ag-pure findings research suggest that may be powerful eco-friendly agent. as photocatalyst under sunlight for detoxification Eri-chrome-black T (EBT), methylene blue (MB), methyl orange (MO), rhodamine B (RhB).

Language: Английский

---