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Mixed-Dimensional Semiconductors-Based Ternary Circuits with Tunable Negative Transconductance Characteristics.
ACS Appl Mater Interfaces
January 2025
Institute of Advanced Materials and Systems, Sookmyung Women's University, Seoul 04310, Republic of Korea.
Multivalued logic (MVL) systems, in which data are processed with more than two logic values, are considered a viable solution for achieving superior processing efficiency with higher data density and less complicated system complexity without further scaling challenges. Such MVL systems have been conceptually realized by using negative transconductance (NTC) devices whose channels consist of van der Waals (vdW) heterojunctions of low-dimensional semiconductors; however, their circuit operations have not been quite ideal for driving multiple stages in real circuit applications due to reasons such as a reduced output swing and poorly defined logic states. Herein, we demonstrate ternary inverter circuits with near rail-to-rail swing and three distinct logic states by employing vdW p-n heterojunctions of single-walled carbon nanotubes (SWCNT) and MoS where the SWCNT layer completely covers the MoS layer.
View Article and Find Full Text PDFUltrasonically Activated Liquid Metal Catalysts in Water for Enhanced Hydrogenation Efficiency.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry and Materials Engineering, Kansai University, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan.
Hydride (H) species on oxides have been extensively studied over the past few decades because of their critical role in various catalytic processes. Their syntheses require high temperatures and the presence of hydrogen, which involves complex equipment, high energy costs, and strict safety protocols. Hydride species tend to decompose in the presence of atmospheric oxygen and water, which reduces their catalytic activities.
View Article and Find Full Text PDFConcentration-Dependent Control of the Band Gap Energy of a Low-Dimensional Lepidocrocite Titanate.
ACS Nano
January 2025
Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States.
Recently, we reported on the simple, scalable synthesis of quantum-confined one-dimensional (1D) lepidocrocite titanate nanofilaments (1DLs). Herein, we show, using solid-state UV-vis spectroscopy, that reducing the concentration of aqueous 1DL colloidal suspensions from 40 to 0.01 g/L increases the band gap energy and light absorption onset of dried filtered films from ≈3.
View Article and Find Full Text PDFSimultaneous and Ultraspecific Optical Detection of Multiple miRNAs Using a Liquid Flow-Based Microfluidic Assay.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongsangbuk-do 38541, Republic of Korea.
Recent studies have reported that the cause and progression of many diseases are closely related to complex and diverse gene regulation involving multiple microRNAs (miRNAs). However, most existing methods for miRNA detection typically deal with one sample at a time, which limits the achievement of high diagnostic accuracy for diseases associated with multiple gene dysregulations. Herein, we develop a liquid flow-based microfluidic optical assay for the simple and reliable detection of two different target miRNAs simultaneously at room temperature without any enzymatic reactions.
View Article and Find Full Text PDFImproving Adolescent and Young Adult Health Through Knowledge and Action on Gender-Based Violence.
J Adolesc Health
January 2025
Gender-based violence (GBV) refers to a specific form of interpersonal violence that is rooted in gender inequities and unequal distribution of power. GBV is defined as any type of violence, including physical, sexual, psychological, and economic, perpetrated against individual(s) based on actual or perceived gender, gender identity, gender expression, sex or sex characteristics, sexual orientation, or divergence from social norms on masculinity and femininity. Cisgender (cis) and transgender (trans) women and girls of all ages, including adolescents and young adults (AYAs) of ages 10-24 years, disproportionately experience GBV.
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