Results 91 to 100 of about 545,717 (377)

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Reconfigurable Mach–Zehnder interferometer for dynamic modulations of spoof surface plasmon polaritons

Nanophotonics, 2021
We propose an ultrathin reconfigurable Mach–Zehnder interferometer (MZI) for realizing dynamic frequency and amplitude modulations of spoof surface plasmon (SSP) signal.
Cui Wen Yi, Zhang Jingjing, Gao Xinxin, Cui Tie Jun   +3 more
doaj   +1 more source

Performance of Hybrid NbTiN-Al Microwave Kinetic Inductance Detectors as Direct Detectors for Sub-millimeter Astronomy

, 2014
In the next decades millimeter and sub-mm astronomy requires large format imaging arrays and broad-band spectrometers to complement the high spatial and spectral resolution of the Atacama Large Millimeter/sub-millimeter Array.
Baryshev, A. M., Baselmans, J. J. A., Endo, A., Ferrari, L., Janssen, R. M. J., Klapwijk, T. M., Yates, S. J. C.   +6 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

BioMeta: modular reprogrammable metasurface for noninvasive human respiration monitoring

Nanophotonics
Human vital-sign sensing using electromagnetic wave has emerged as a promising technology for the noninvasive monitoring of individuals’ health status. Here, a modular reprogrammable metasurface system is presented to suppress noise in noninvasive human ...
Li Xin Yu, Chen Long, Qin Shi Long, Zhao Ke Zhan, Cai Zi Xuan, Peng Qiao Cong, Ma Qian, You Jian Wei, Cui Tie Jun   +8 more
doaj   +1 more source

A magnetized torus for modeling Sgr A* millimeter images and spectra

, 2014
Context. The supermassive black hole, Sagittarius (Sgr) A*, in the centre of our Galaxy has the largest angular size in the sky among all astrophysical black holes. Its shadow, assuming no rotation, spans ~ 50 microarcsec.
Abramowicz, M. A., Straub, O., Vincent, F. H., Yan, W., Zdziarski, A. A.   +4 more
core   +2 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Design of the Monopulse Feeding Network for a Slotted Waveguide Array on an Annular Disk

International Journal of Antennas and Propagation
Design of a monopulse feeding network including a compact power distribution network and a monopulse comparator for a dual polarization slotted waveguide array fabricated on an annular disk is presented in this paper.
Zongxin Wang, Yulan Wang, Shengchi Zhu, Peng Chen   +3 more
doaj   +1 more source

An externally perceivable smart leaky-wave antenna based on spoof surface plasmon polaritons

Opto-Electronic Advances
Smart antennas have received great attention for their potentials to enable communication and perception functions at the same time. However, realizing the function synthesis remains an open challenge, and most existing system solutions are limited to ...
Weihan Li, Jia Chen, Shizhao Gao, Lingyun Niu, Jiaxuan Wei, Ruosong Sun, Yaqi Wei, Wenxuan Tang, Tie Jun Cui   +8 more
doaj   +1 more source

Intelligent metasurface with frequency recognition for adaptive manipulation of electromagnetic wave

Nanophotonics, 2022
Due to the strong ability of recognizing electromagnetic (EM) environment and adaptively control of EM waves, the intelligent metasurfaces have received great attention recently.
Wang Hai Peng, Li Yun Bo, Li He, Shen Jia Lin, Dong Shu Yue, Wang Shi Yu, Qi Kai Nan, Ma Qian, Jin Shi, Li Si Jia, Cui Tie Jun   +10 more
doaj   +1 more source