Results 11 to 20 of about 517,159 (303)

Colorimetric miRNA detection based on self-primer-initiated CRISPR-Cas12a-assisted amplification

BioTechniques, 2023
miRNAs alter significantly throughout pregnancy to support the development of the fetus. However, sensitive detection of miRNA remains a challenge. Herein, a reliable miRNA detection approach integrating self-assembly-triggered signal amplification and ...
Ying Kang, Jingjing Zhang, Lijuan Zhao, Hongli Yan   +3 more
doaj   +1 more source

Multi-Way Noiseless Signal Amplification in a Symmetrical Cascaded Four-Wave Mixing Process

Photonics, 2022
According to the fundamental laws of quantum optics, vacuum noise is inevitably added to the signal when one tries to amplify a signal. However, it has been recently shown that noiseless signal amplification can be realized when a phase-sensitive process
Hailong Wang, Yajuan Zhang, Xiong Zhang, Chunliu Zhao, Shangzhong Jin, Jietai Jing   +5 more
doaj   +1 more source

Amplification of Radiation-Induced Signal of LED Strip by Increasing Number of LED Chips and Using Amplifier Board

Applied Sciences, 2020
Transducers, such as photodiodes, phototransistors, and photovoltaic cells are promising radiation detectors. However, for accurate radiation detection and dosimetry, signals that emanate from these devices have to be sufficient to facilitate accurate ...
Edrine Damulira, Muhammad Nur Salihin Yusoff, Ahmad Fairuz Omar, Nur Hartini Mohd Taib   +3 more
doaj   +1 more source

Cortical circuitry mediating interareal touch signal amplification

Cell Reports, 2023
Summary: Sensory cortical areas are organized into topographic maps representing the sensory epithelium. Interareal projections typically connect topographically matched subregions across areas. Because matched subregions process the same stimulus, their
Lauren Ryan, Andrew Sun-Yan, Maya Laughton, Simon Peron   +3 more
doaj   +1 more source

DNAzyme-Based Target-Triggered Rolling-Circle Amplification for High Sensitivity Detection of microRNAs

Sensors, 2020
MicroRNAs regulate and control the growth and development of cells and can play the role of oncogenes and tumor suppressor genes, which are involved in the occurrence and development of cancers.
Chen Liu, Jialun Han, Lujian Zhou, Jingjing Zhang, Jie Du   +4 more
doaj   +1 more source

Enzyme localization can drastically affect signal amplification in signal transduction pathways. [PDF]

PLoS Computational Biology, 2007
Push-pull networks are ubiquitous in signal transduction pathways in both prokaryotic and eukaryotic cells. They allow cells to strongly amplify signals via the mechanism of zero-order ultrasensitivity.
Siebe B van Albada, Pieter Rein ten Wolde   +1 more
doaj   +1 more source

Biosensors Coupled with Signal Amplification Technology for the Detection of Pathogenic Bacteria: A Review

Biosensors, 2021
Foodborne disease caused by foodborne pathogens is a very important issue in food safety. Therefore, the rapid screening and sensitive detection of foodborne pathogens is of great significance for ensuring food safety.
Fengchun Huang, Yingchao Zhang, Jianhan Lin, Yuanjie Liu   +3 more
doaj   +1 more source

Recent advances of fluorescent biosensors based on cyclic signal amplification technology in biomedical detection

Journal of Nanobiotechnology, 2021
The cyclic signal amplification technology has been widely applied for the ultrasensitive detection of many important biomolecules, such as nucleic acids, proteins, enzymes, adenosine triphosphate (ATP), metal ions, exosome, etc. Due to their low content
Hongke Qu, Chunmei Fan, Mingjian Chen, Xiangyan Zhang, Qijia Yan, Yumin Wang, Shanshan Zhang, Zhaojian Gong, Lei Shi, Xiayu Li, Qianjin Liao, Bo Xiang, Ming Zhou, Can Guo, Guiyuan Li, Zhaoyang Zeng, Xu Wu, Wei Xiong   +17 more
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Multilevel signal processing using phase sensitive amplification [PDF]

, 2022
In this thesis we present a study on optical signal regeneration techniques, in particular for quadrature phase shift keying (QPSK) modulated signals.
Da Ros, Francesco
core  

Noisy signal amplification in ultrasensitive signal transduction [PDF]

Proceedings of the National Academy of Sciences, 2004
Because intracellular processes are inherently noisy, stochastic reactions process noisy signals in cellular signal transduction. One essential feature of biological signal transduction systems is the amplification of small changes in input signals.
Tatsuo, Shibata, Koichi, Fujimoto
openaire   +2 more sources