Results 131 to 140 of about 31,563 (270)

Detection of Toxic Gases and Volatile Organic Compounds Using Highly Adsorptive Nanomaterials: A Comprehensive Assessment

open access: yesEcoMat, Volume 8, Issue 5, May 2026.
This review highlights how nanomaterials with high adsorption capacities including carbon‐based structures, transition metal oxides, 2D layers, and zeolites enable sensitive and selective detection of toxic gases and VOCs. Their tailored properties and sensing mechanisms drive the development of next‐generation gas sensors for environmental and ...
Hamdy A. Ismail   +9 more
wiley   +1 more source

Open and Collaborative Dataset for the Classification of Operational Transconductance Amplifiers for Switched-Capacitor Applications

open access: yesData
This study introduces a collaborative and open dataset designed to classify operational transconductance amplifiers (OTAs) in switched-capacitor applications.
Francesco Gagliardi, Michele Dei
doaj   +1 more source

Organic neuromorphic electronics powering intelligent sensory and edge computing systems

open access: yesInfoMat, Volume 8, Issue 5, May 2026.
Organic electronic materials are promising candidates for neuromorphic sensing applications, including chemical, physical, visual, and multimodal sensing, owing to their mechanical softness, biocompatibility, and intrinsic ionic–electronic coupling.
Seungjun Woo   +5 more
wiley   +1 more source

Substrate‐Tight Graphene Transmembrane‐nanofluidic Devices

open access: yesSmall, Volume 22, Issue 25, 4 May 2026.
This study demonstrates that the covalent coupling of a pyrene layer to a silicon nitride substrate using silane and peptide chemistry increases the adhesion of graphene to the substrate and prevents the delamination of graphene. 76.2% of the devices with free‐standing graphene are successful devices for ion transport measurement in 0.1 M HCl ...
Xiaofang Kang   +7 more
wiley   +1 more source

CMOS LIF Spiking Neuron Designed with a Memristor Emulator Based on Optimized Operational Transconductance Amplifiers

open access: yesDynamics
The proposed work introduces a sizing algorithm to achieve a desired linear transconductance in the optimization of operational transconductance amplifiers (OTAs) by applying the gm/ID method to find the initial width (W) and length (L) sizes of the ...
Carlos Alejandro Velázquez-Morales   +3 more
doaj   +1 more source

Impact of Sapphire Substrate Reconstruction on the Structural, Electronic, and Photonic Properties of MoS2

open access: yesSmall, Volume 22, Issue 26, 8 May 2026.
High‐temperature reconstruction of c‐plane sapphire during MOCVD growth of MoS2 fundamentally alters the optical and electronic properties of MoS2 epilayer by introducing step‐edge driven interfacial charge transfer. Raman, PL, and KPFM reveal non‐uniform doping and strain in as‐grown films, whereas transferred layers show uniform optical and ...
Riccardo Torsi   +8 more
wiley   +1 more source

Current-Mode Sixth-Order Elliptic Band-Pass Filter Using MCDTAs [PDF]

open access: yes, 2011
In this paper, a modified CDTA (MCDTA) is presented and the current-mode second-order band-pass, high-pass notch, and low-pass notch circuits using MCDTAs are given.
Li, Y.
core   +1 more source

Partially Reduced and Stabilized Phase‐Changed MoS2 Hybrids for Vapor Molecular Absorption at Defects in Edge Sites

open access: yesSmall Science, Volume 6, Issue 5, May 2026.
Schematic illustration of field effect transistor‐type sensor electrode fabrication and synthesis of MoS2@rGO hybrids. 1T or 2H MoS2 were combined with GO, followed by thermal partial reduction to form MoS2@rGO with defect sites. The removal of hydroxyl groups as moisture increased specific surface area and porous size, enhancing vapor adsorption ...
Hye Gyu Cha   +6 more
wiley   +1 more source

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