In
recent years, two-dimensional (2D) semiconductors have attracted
considerable attention from both academic and industrial communities.
Recent research has begun transforming from constructing basic field-effect
transistors (FETs) into designing functional circuits. However, device
processing remains a bottleneck in circuit-level integration. In this
work, a non-destructive doping strategy is proposed to modulate precisely
the threshold voltage (V
TH) of MoS2-FETs in a wafer scale. By inserting an Al interlayer with
a varied thickness between the high-k dielectric
and the Au top gate (TG), the doping could be controlled. The full
oxidation of the Al interlayer generates a surplus of oxygen vacancy
(Vo) in the high-k dielectric layer, which further
leads to stable electron doping. The proposed strategy is then used
to optimize an inverter circuit by matching the electrical properties
of the load and driver transistors. Furthermore, the doping strategy
is used to fabricate digital logic blocks with desired logic functions,
which indicates its potential to fabricate fully integrated multistage
logic circuits based on wafer-scale 2D semiconductors.
This paper presents a low temperature coefficient and wide temperature range bandgap reference with high power supply rejection. High temperature curvature compensation of this circuit is accomplished by MOSFET transistors operating in the subthreshold region. With the proposed piecewise compensation technique, the temperature range is extended. At the same time, a pre-regulator structure is adopted to improve the line sensitivity and suppress the ripple of the power supply. The novel bandgap reference is proposed and verified in 180nm CMOS process. The measured 𝑉 REF is 1.18V at 3.3V power supply voltage, and the static current of the circuit is 75uA. Over the wide temperature range of -60~160•C, the temperature coefficient achieves 5.72ppm/•C, and the power supply rejection is -93.26dB at low frequency.
Makyo‐kanseki‐to has been used for the treatment of pneumonia, becoming a basic formula for coronavirus disease 2019. However, the chemical profile of Makyo‐kanseki‐to granule and its possible mechanism against acute lung injury from terminal metabolic regulation have been unclear. The aim of this study was to characterize the constituents in Makyo‐kanseki‐to granule and reveal the potential related mechanism of Makyo‐kanseki‐to granule treatment for acute lung injury using a rat model of lipopolysaccharide‐induced acute lung injury. Totally, 78 constituents were characterized based on ultra‐performance liquid chromatography coupled with quadrupole time‐of‐flight mass spectrometry. Makyo‐kanseki‐to granule could alleviate acute lung injury through modulating rectal temperature, pulmonary edema, histopathology, and processes of inflammatory and oxidative stress. Twenty‐two potential biomarkers in acute lung injury rats were identified by metabolomics based on ultra‐performance liquid chromatography coupled with quadrupole exactive high‐field mass spectrometry. They were mainly involved in amino acids and glycerophospholipid metabolism, which were regulated by Makyo‐kanseki‐to granule. The present results not only increase the understanding of the chemical profile and molecular mechanism of Makyo‐kanseki‐to granule mediated protection against acute lung injury but also provide an experimental basis and new ideas for further development and clinical application of Makyo‐kanseki‐to granule.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.