A benzoquinone monolayer-functionalized electrode reveals electrochemically or chemically controlled wettability; the hydrophobicity of the hydroquinone-modified surface is enhanced by the presence of a donor-acceptor complex with N,N'-dimethyl-4,4'-bipyridinium as the pi-electron acceptor.
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http://dx.doi.org/10.1039/b710540a | DOI Listing |
Biosens Bioelectron
January 2025
Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, 646000, China. Electronic address:
Colorectal cancer (CRC) is a leading cause of cancer-related deaths globally, necessitating the development of sensitive and minimally invasive diagnostic approaches. In this study, we present a novel diagnostic strategy by integrating dumbbell probe-mediated CRISPR/Cas13a with nicking-induced DNA cascade reaction (DP-bridged Cas13a/NDCR) for highly sensitive microRNA (miRNA) detection. Target miRNA triggers Cas13a-mediated cleavage of the dumbbell probe, releasing an intermediate strand that hybridizes with a methylene blue-labeled hairpin probe on the electrode surface.
View Article and Find Full Text PDFJ Sep Sci
January 2025
Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Polycyclic aromatic hydrocarbons (PAHs) are carcinogenic compounds resulting from incomplete burning of organic materials. This work describes the successful layer-by-layer fabrication of a novel zinc oxide nanocomposite made of zinc oxide nanoparticles, aniline, sodium dodecyl sulfate, and modified multi-walled carbon nanotubes on a stainless steel wire by electrodeposition. The coating and extraction conditions were screened, optimized, and validated using factorial design and central composite design, respectively.
View Article and Find Full Text PDFPolymers (Basel)
January 2025
Research School of Chemical and Biomedical Technologies, Tomsk Polytechnic University, Lenin Ave. 30, 634050 Tomsk, Russia.
Laser reduction of graphene oxide (GO) is a promising approach for achieving flexible, robust, and electrically conductive graphene/polymer composites. Resulting composite materials show significant technological potential for energy storage, sensing, and bioelectronics. However, in the case of insulating polymers, the properties of electrodes show severely limited performance.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Microbiology Institute of Shaanxi, No.76 Xiying Road, Xi'an 710043, China.
The trace detection of pyocyanin (PCN) is crucial for infection control, and electrochemical sensing technology holds strong potential for application in this field. A pivotal challenge in utilizing carbon materials within electrochemical sensors lies in constructing carbon-based films with robust adhesion. To address this issue, a novel composite hydrogel consisting of multi-walled carbon nanotubes/polyvinyl alcohol/phosphotungstic acid (MWCNTs/PVA/PTA) was proposed in this study, resulting in the preparation of a highly sensitive and stable PCN electrochemical sensor.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Department of Agricultural Machinery Engineering, Graduate School, Chungnam National University, Daejeon 34134, Republic of Korea.
Efficient management of soil nutrients is essential for optimizing crop production, ensuring sustainable agricultural practices, and addressing the challenges posed by population growth and environmental degradation. Smart agriculture, using advanced technologies, plays an important role in achieving these goals by enabling real-time monitoring and precision management of nutrients. In open-field soil cultivation, spatial variability in soil properties demands site-specific nutrient management and integration with variable-rate technology (VRT) to optimize fertilizer application, reduce nutrient losses, and enhance crop yields.
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