Results 71 to 80 of about 1,664 (293)

Development of chopper-stabilized ASIC preamplifier for improving noise equivalent magnetic induction of search coil magnetometer probing space plasma waves [PDF]

, 2023
Mitsunori Ozaki, Yuya Tokunaga, Hiroki Koji, Satoshi Yagitani   +3 more
openalex   +1 more source

A 0.18μm front end for ECG/EEG/neural sensor interface [PDF]

, 2012
A 1.8V 0.18μm CMOS analog front end consists of a chopper stabilized low noise preamplifier, a capacitive negative feedback gain stage and a variable gain amplifier with digital tunable low pass filter bank is presented. With optimized gain distribution,
Je, Minkyu, Yuanjin Zheng, Minkyu Je, Han, Dong, Dong Han, Zheng, Yuanjin   +5 more
core   +1 more source

Discovery and Engineering of a Rat Endogenous Retrovirus Reverse Transcriptase for Efficient Prime Editing

Advanced Science, EarlyView.
We screened 558 reverse transcriptases and engineered an optimized rat endogenous retrovirus‐derived variant, enRERV‐RT, via structure‐guided engineering and deep mutational scanning. This enhanced prime editor, based on the engineered RT, outperforms conventional M‐MLV‐RT systems across plant and animal cells, particularly at hard‐to‐edit loci ...
Linsha Ma, Pengcheng Yao, Shengqi Wu, Yuanyuan Shi, Lang Qin, Baitao Li, Jiayi Zhu, Minhua Huang, Yichong Zhu, Yuwen Song, Jinhuan Pang, Ziping Guo, Guochuan Wu, Chen Wang, Kewei Xu, Ruihua Huang, Quan Kuang, Liang Qu, Changtian Pan, Xianrong Xie, Qinlong Zhu, Jiaying Huang, Qiupeng Lin   +22 more
wiley   +1 more source

Design Of Low 1/F Noise Operational Amplifier Cell Using Chopper Stabilization Technique [PDF]

, 2017
Teknik stabilisasi chopper dapat digunakan secara luas untuk input diferensial dan penguat keluaran diferensial dan dapat diimplementasikan sakelar perajang bolak-balik dari amplifier. Sebenarnya, penguat instrumentasi dengan teknik stabilisasi chopper
Eritha, Fadila Norasarin
core  

A Capacitively-Coupled Chopper Instrumentation Amplifier for Implantable Bridge Sensor Systems [PDF]

This paper presents an energy and area efficient capacitively-coupled chopper instrumentation amplifier (CCIA) dedicated to implantable bridge sensor systems. Chopper stabilization is employed to decrease its offset and 1/f noise and the resulting ripple
Beghetti, Maurice, Dehollain, Catherine, Mattavelli, Marco, Barrettino, Diego, Besirli, Mustafa, Ture, Kerim   +5 more
core   +1 more source

A Brain‐Penetrant Nanobody Reveals GSK3β‐Driven Proline‐Directed Phosphorylation as a Master Regulator of Ischemic Neurodegeneration

Advanced Science, EarlyView.
A brain‐targeted nanoparticle enables delivery of a therapeutic nanobody (Nb.29E9) that inhibits pathogenic GSK3β signaling. This intervention restores AMPK/mTORC1/TGFβ homeostasis, attenuates neuroinflammation and oxidative stress, and promotes long‐term functional recovery after ischemic stroke.
Lan Li, Muyang Li, Lei Sun, Ying Yang, Yuanshun Wu, Ziyi Yin, Anni Wang, Peiyang Zhou, Shaoxiang Luo, Jian Chen, Jun Qin, Zhibing Ai, Zilong Yuan, Zhiqiang Dong, Min Zhang   +14 more
wiley   +1 more source

Cancellation of Amplifier Offset and 1/f Noise: An Improved Chopper Stabilized Technique [PDF]

, 2007
In this brief, a theoretical analysis on the limits of conventional chopper stabilization technique is presented and a solution conceived to improve the amplifier performance is proposed.
AGNES, ANDREA, CABRINI, ALESSANDRO, MALOBERTI, FRANCO, MARTINI, GIUSEPPE   +3 more
core   +1 more source

Interfacial Proton‐Relay Microenvironment Enables Self‐Driven Singlet Oxygen Generation under Neutral Conditions

Advanced Science, EarlyView.
An interfacial proton‐relay microenvironment at MoS2‐CuCl heterostructures enables selective O2 activation to 1O2 under neutral conditions. Electron‐deficient sulfur sites mediate proton transfer to Cu‐bound O2, accelerating *OOH hydrogenation while suppressing O─O bond cleavage, achieving stable, efficient pollutant removal.
Qiaoyu Gao, Xiaohui Dai, Jian Ye, Lili Li, Chenxiao Yu, Yuehan Jiang, Jiangdong Dai, Xiaohua Tian, Jun Zhao, Jianming Pan   +9 more
wiley   +1 more source

Chopper-stabilized Multipath Instrumentation Amplifier with Output Voltage Offset Compensation Using R-2R Digital-to-Analog Converter [PDF]

, 2021
Hyunwoo Heo, Hyungseup Kim, Donggeun You, Yong‐Su Kwon, Dong‐il Cho, Hyoungho Ko   +5 more
openalex   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

Advanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng, Zhicheng Wang, Xin Zhou, Shuya Wang, Xiaojing Shi, Tingli Xiong, Ruishi Li, Yuting Lin, Zhen Chen, Jiawen Wei, Fei Li, Jinwen Ge, Kelong Ai, Chong Liu, Guiming Deng   +14 more
wiley   +1 more source