A simple assay for multiplex DNA detection has been developed using a microfluidic chip and a personal glucose meter. By using this system, multiplex detection of three genotypes of hepatitis B virus DNA was possible with a detection limit of 10 pM. This point-of-care assay represented a versatile platform for sensitive multiplex target detection.
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http://dx.doi.org/10.1039/c4cc00133h | DOI Listing |
BMC Microbiol
January 2025
Cellular Interactions of Bacterial Pathogens, Centre for Biological Threats and Special Pathogens, Highly Pathogenic Microorganisms (ZBS 2), Robert Koch Institute, Seestraße 10, 13353, Berlin, Germany.
Background: The zoonotic and highly infectious pathogen Francisella tularensis is the etiological agent of tularemia. Tularemia in humans is mainly caused by F. tularensis subspecies tularensis and holarctica, but Francisella species like F.
View Article and Find Full Text PDFMethods Cell Biol
January 2025
Pathology, Leiden University Medical Center, Leiden, The Netherlands. Electronic address:
In recent years, significant advancements have been achieved in the development of multiplex imaging methodologies for immunophenotyping, enabling a comprehensive characterization of the complexity of tumor microenvironments. Imaging mass cytometry combines the detection of over 40 cellular targets with spatial information, enabling the identification of not only which cells are present in a tissue but also their localization relative to each other. Here, we present an easy-to-implement imaging mass cytometry workflow that ranges from antibody selection and testing to running a full panel.
View Article and Find Full Text PDFAdv Sci (Weinh)
January 2025
Center for Advanced Biomolecular Recognition, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea.
During the COVID-19 pandemic, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) has been recognized as the most reliable diagnostic tool. However, there is a need to develop multiplexed assays capable of analyzing multiple genes simultaneously to expand its application. To address this, a multiplexed RT-qPCR using a double emulsion (DE)-based carrier and a polymer microparticle reactor, termed primer-incorporated network tailored with Taqman probe (TaqPIN) is developed.
View Article and Find Full Text PDFJ Mass Spectrom
February 2025
Center for Bioinformatics and Computational Biology, University of Delaware, Newark, Delaware, USA.
The development of a real-time system for characterizing individual biomolecule-containing aerosol particles presents a transformative opportunity to monitor respiratory conditions, including infections and lung diseases. Existing molecular assay technologies, although effective, rely on costly reagents, are relatively slow, and face challenges in multiplexing, limiting their use for real-time applications. To overcome these challenges, we developed digitalMALDI, a laser-based mass spectrometry system designed for single-particle characterization.
View Article and Find Full Text PDFInfection
January 2025
Institute of Population Health Sciences, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan.
Purpose: Rapid detection of drug resistance in Mycobacterium tuberculosis (Mtb) from clinical samples facilitates the timely provision of optimal treatment regimens for tuberculosis (TB) patients.
Methods: In November, 2023, the WHO released its second catalogue of resistance-conferring mutations in Mtb. Utilizing this information, we developed a single 17-plex PCR assay covering 16 key resistance genes and modified thermo-protection buffer to amplify 30 kbp DNA directly from sputum samples for nanopore sequencing.
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