Results 281 to 290 of about 6,973,238 (322)
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1977
The devices and circuits described so far have not allowed direct connection of input signals from, say, a microphone or an oscillator, nor have they allowed direct connection to, say, another amplifier or measuring instrument. So that a complete electronic circuit may be constructed using a transistor or triode, additional components must be added for
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The devices and circuits described so far have not allowed direct connection of input signals from, say, a microphone or an oscillator, nor have they allowed direct connection to, say, another amplifier or measuring instrument. So that a complete electronic circuit may be constructed using a transistor or triode, additional components must be added for
openaire +1 more source
Signal Amplification for Imaging Mass Cytometry
Bioconjugate Chemistry, 2019An enzyme-catalyzed reporter deposition stain has been developed for Imaging Mass Cytometry (IMC). The reagent consists of an alkaline phosphatase substrate tethered to a tellurophene which serves as reporter group for mass cytometry. Upon phosphate hydrolysis, a quinone methide is released which covalently labels local nucleophiles. This strategy is a
Rahul Rana +3 more
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Signal Amplification Technologies
2012The introduction of target nucleic acid amplification technologies, such as polymerase chain reaction (PCR), nucleic acid sequence-based amplification (NASBA), and strand displacement amplification (SDA), was accompanied by a plethora of technology patents.
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Detection signal amplification strategies at nanomaterial-based photoelectrochemical biosensors.
Journal of materials chemistry. B, 2020This review focusses on unique material modification and signal amplification strategies reported in developing photoelectrochemical (PEC) biosensors with utmost sensitivity and selectivity.
Liwei Yang +5 more
semanticscholar +1 more source
2016
Signal amplification methods were initially designed as an alternative to the target amplification technologies such as polymerase chain reaction (PCR) so as to minimize the possibility of contamination by target amplification products. Unlike target amplification, signal amplification methods (as defined herein) do not rely on enzymes for the ...
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Signal amplification methods were initially designed as an alternative to the target amplification technologies such as polymerase chain reaction (PCR) so as to minimize the possibility of contamination by target amplification products. Unlike target amplification, signal amplification methods (as defined herein) do not rely on enzymes for the ...
openaire +1 more source
SIGNAL AMPLIFICATION VIA CHAOS: EXPERIMENTAL EVIDENCE
International Journal of Bifurcation and Chaos, 1992Experimental evidence showing the existence of signal amplification via perturbation of periodic and chaotic orbits in an electronic circuit is presented.
Halle, K. S. +3 more
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Signal amplification strategies for paper-based analytical devices.
Biosensors & bioelectronics, 2019Paper-based analytical devices (PADs) are very popular for point-of-care diagnostics, which provide a fast, cost-effective and possible multiplexed detection of a spectrum of molecules.
Linyang Liu, Danting Yang, Guozhen Liu
semanticscholar +1 more source
Biosensors & bioelectronics, 2019
Herein, a novel electrochemical ultrasensitive immunosensor was designed for detecting prostate-specific antigen (PSA) with three-dimensional (3D) PtCu hollow nanoframes (PtCu HNFs) as signal amplification. The highly opened PtCu HNFs were synthesized by
Yao Chen +6 more
semanticscholar +1 more source
Herein, a novel electrochemical ultrasensitive immunosensor was designed for detecting prostate-specific antigen (PSA) with three-dimensional (3D) PtCu hollow nanoframes (PtCu HNFs) as signal amplification. The highly opened PtCu HNFs were synthesized by
Yao Chen +6 more
semanticscholar +1 more source
Small, 2019
Emerging evidence indicates that exosomes derived from gastric cancer cells enhance tumor migration and invasion through the modulation of the tumor microenvironment. However, it remains a major problem to detect cancer-specific exosomes due to technical
Rongrong Huang +11 more
semanticscholar +1 more source
Emerging evidence indicates that exosomes derived from gastric cancer cells enhance tumor migration and invasion through the modulation of the tumor microenvironment. However, it remains a major problem to detect cancer-specific exosomes due to technical
Rongrong Huang +11 more
semanticscholar +1 more source