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Bead probe technology is a probing method used to connect electronic test equipment to the device under test (DUT) within a bed of nails fixture. The technique was first used in the 1990s [ 3 ] and originally given the name “Waygood Bump” after one of the main proponents, Rex Waygood.
A common form of in-circuit testing uses a bed-of-nails tester.This is a fixture that uses an array of spring-loaded pins known as "pogo pins". When a printed circuit board is aligned with and pressed down onto the bed-of-nails tester, the pins make electrical contact with locations on the circuit board, allowing them to be used as test points for in-circuit testing.
On the chip, there are two bead types for each CpG (or "CG", as per Figure 1) site per locus. Each locus tested is differentiated by different bead types. [ 1 ] Both bead types are attached to single-stranded 50-mer DNA oligonucleotides that differ in sequence only at the free end; this type of probe is known as an allele-specific oligonucleotide .
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Suspension array technology (or SAT) is a high throughput, large-scale, and multiplexed screening platform used in molecular biology. SAT has been widely applied to genomic and proteomic research, such as single nucleotide polymorphism (SNP) genotyping, genetic disease screening, gene expression profiling, screening drug discovery and clinical ...
BEAMing grew out of digital PCR technology and in 2003 was described in a Nature Methods publication from Vogelstein's team. [7] In 2005, Vogelstein's team published their first clinical data applying BEAMing technology to analyze plasma samples of patients with cancer. [ 2 ]
The probe is being conducted under Section 301 of the Trade Act of 1974, the same unfair trade practices statute Trump invoked to impose tariffs of up to 25% on some $370 billion worth of Chinese ...
The catalytic bead sensor MSA 94150. The catalytic bead sensor consists of two coils of fine platinum wire each embedded in a bead of alumina, connected electrically in a Wheatstone bridge circuit. One of the pellistors is impregnated with a special catalyst which promotes oxidation whilst the other is treated to inhibit oxidation. Current is ...