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Smart Polymeric 3D Microscaffolds Hosting Spheroids for Neuronal Research via Quantum Metrology.
Adv Healthc Mater
January 2025
INL - International Iberian Nanotechnology Laboratory, Ultrafast Bio- and Nanophotonics group, Av. Mestre José Veiga s/n, Braga, 4715-330, Portugal.
Toward the aim of reducing animal testing, innovative in vitro models are required. Here, this study proposes a novel smart polymeric microscaffold to establish an advanced 3D model of dopaminergic neurons. These scaffolds are fabricated with Ormocomp via Two-Photon Polymerization.
View Article and Find Full Text PDFIn Vivo Nanodiamond Quantum Sensing of Free Radicals in Caenorhabditis elegans Models.
Adv Sci (Weinh)
January 2025
Department of Biomaterials & Biomedical Technology (BBT), University Medical Centre Groningen (UMCG), Antonius Deusinglaan 1, Groningen, 9713 AV, The Netherlands.
Free radicals are believed to play a secondary role in the cell death cascade associated with various diseases. In Huntington's disease (HD), the aggregation of polyglutamine (PolyQ) not only contributes to the disease but also elevates free radical levels. However, measuring free radicals is difficult due to their short lifespan and limited diffusion range.
View Article and Find Full Text PDFFluorescent nanodiamond scintillators for beam diagnostics of EUV and soft X-ray in photolithographic applications.
RSC Adv
January 2025
Institute of Atomic and Molecular Sciences, Academia Sinica Taipei 106 Taiwan
Extreme ultraviolet (EUV) lithography is a cutting-edge technology in contemporary semiconductor chip manufacturing. Monitoring the EUV beam profiles is critical to ensuring consistent quality and precision in the manufacturing process. This study uncovers the practical use of fluorescent nanodiamonds (FNDs) coated on optical image sensors for profiling EUV and soft X-ray (SXR) radiation beams.
View Article and Find Full Text PDFColor-Coded Traffic Signal Method Combined with Nanodiamond Quantum Sensing for Accurate miRNA Detection.
ACS Sens
January 2025
School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China.
Background noise interferes with the accurate detection of early tumor biomarkers. This study introduces a method that effectively reduces background noise to enhance detection accuracy by combining a color-coded signaling approach with the unique fluorescent properties and room-temperature tunable quantum spin characteristics of fluorescent diamonds (FNDs) with nitrogen-vacancy centers. In this approach, a red signal indicates the presence of the target analyte within the spectral region, a green signal indicates its absence, and a yellow signal indicates the need for further analysis using FNDs' quantum spin properties for optical detection magnetic resonance (ODMR) to distinguish the FND signal from background noise.
View Article and Find Full Text PDFElectrochemical-Enhanced Charge State Modulation of Nitrogen-Vacancy Centers for Ultrasensitive Biodetection of MicroRNA-155.
ACS Appl Mater Interfaces
January 2025
School of Mechanical Engineering, Southeast University, Nanjing 211189, China.
Sensitive and accurate miRNA detection is important in cancer diagnosis but remains challenging owing to the essential features of miRNAs, such as their small size, high homology, and low abundance. This work proposes a novel electrochemical (EC)-enhanced quantum sensor achieving quantitative detection of miRNA-155 with simultaneous EC sensing. Specifically, fluorescent nanodiamonds/MXene nanocomposites were synthesized and modified with dual-mode signal labels, enabling miRNA-155 concentration measurement via relaxation time of nitrogen-vacancy (NV) centers and EC signals.
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