نتایج جستجو برای: direct sample pcr
تعداد نتایج: 971582 فیلتر نتایج به سال:
Environmental microbial community analysis typically involves amplification by PCR, despite well-documented biases. We have developed two methods of PCR-independent microbial community analysis using the high-density microarray PhyloChip: direct hybridization of 16S rRNA (dirRNA) or rRNA converted to double-stranded cDNA (dscDNA). We compared dirRNA and dscDNA communities to PCR-amplified DNA c...
Typically, polymerase chain reaction (PCR) is performed after DNA isolation. Real-time PCR (qPCR), also known as direct qPCR in mammalian cells with weak membranes, is a common technique using crude samples subjected to preliminary boiling to elute DNA. However, applying this methodology to prokaryotic cells, which have solid cell walls, in contrast to mammalian cells which immediately burst in...
We recently described a reverse transcription-PCR (RT-PCR) for detecting low numbers of viable Cryptosporidium parvum oocysts spiked into clarified environmental water concentrates. We have now modified the assay for direct analysis of primary sample concentrates with simultaneous detection of viable C. parvum oocysts, Giardia cysts, and a novel type of internal positive control (IPC). The IPC ...
PurposeCurrent polymerase chain reaction (PCR) methods for the diagnosis of infections are time consuming and require large sample volume skilled technicians. We developed a novel, easy-to-use, rapid (processing time, 1 minute; total 33 minutes) multiplex real-time PCR test (Direct Strip PCR) that did not DNA extraction to detect 9 pathogens could cause uveitis in 20-μl samples.DesignMulticente...
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