Results 51 to 60 of about 43,885 (259)

Laser-Induced Graphene on a Quartz Crystal Microbalance for Humidity Sensing

open access: yesCrystals, 2021
In this study, a simple method for synthesizing graphene layer directly on a quartz crystal microbalance (QCM) using a laser was developed. This laser-induced graphene (LIG) was used for sensing surface to simultaneously measure changes in the adsorbed ...
Jihun Choi   +3 more
doaj   +1 more source

Near‐Infrared Light‐Driven Zn/Au Janus Micromotors for Multiplex SERS Detection of Anticancer Drugs

open access: yesAdvanced Functional Materials, EarlyView.
Zn/Au Janus micromotors, propelled by thermophoretic effects under NIR light, function as active SERS platforms for single and multiplex detection of anticancer drugs. Their dynamic motion enhances analyte exchange at the Au interface, reducing saturation and competitive adsorption, thereby improving sensitivity and extending the linear detection range.
Tijana Maric   +8 more
wiley   +1 more source

Spins, disorder and interactions in GaAs and graphene [PDF]

open access: yes, 2012
This thesis describes experiments on semiconductor spin physics under the influence of diverse disorder and carrier-carrier interaction. Motivated by recent observations of GaAs spin qubit coherence limited by hyperfine coupling to nuclear-spin en ...
Kölbl, Dominikus
core   +1 more source

Unlocking Exceptional Strengthening in Aluminum Alloys via Interstitial Cottrell Atmosphere Formation

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic unloading‐aging‐reloading micro‐tensile tests under various aging durations and temperatures, combined with comprehensive microstructural characterization reveal that the yield point phenomenon in Aluminum‐Carbon (Al‐C) thin films originates from Cottrell atmosphere formation.
Zion Lee   +10 more
wiley   +1 more source

Virus Inactivation in Water Using Laser-Induced Graphene Filters

open access: yes, 2020
Graphene in the form of laser-induced graphene (LIG) has antimicrobial and antifouling surface effects due to its electrochemical properties and texture, and LIG-based water filters were used for the inactivation of bacteria.
Ziv, Oren   +9 more
core   +1 more source

Recent Advances of Graphene‐Based Wearable Sensors: Synthesis, Fabrication, Performance, and Application in Smart Device

open access: yesAdvanced Materials Interfaces
In recent years, graphene has emerged as a promising material for flexible wearable sensors due to its exceptional properties, including flexibility, high surface area, excellent conductivity, and remarkable mechanical strength.
Fatemeh Saeedi   +2 more
doaj   +1 more source

Blood Biomarkers and Surface‐Enhanced Raman Spectroscopy for Gout: A Comprehensive Review

open access: yesAdvanced Functional Materials, EarlyView.
Schematic illustrating gout disease progression from asymptomatic hyperuricemia to chronic tophaceous disease, highlighting the limitations of conventional imaging and biochemical diagnostics and the potential of engineered SERS platforms for ultrasensitive blood‐based detection of urate‐related biomarkers across disease stages, with the color gradient
Isuri Perera   +6 more
wiley   +1 more source

Electron optics in ballistic graphene [PDF]

open access: yes, 2015
This thesis is centered on the experimental observation of electron-optics phenomena in graphene. In Chapter 2, graphene is introduced and the ability to form p-n junctions, with particular regard to electron optics experiments, is discussed.
Rickhaus, Peter
core   +1 more source

Laser-induced graphene electrodes with tunable super-hydrophobicity and conductivity: A parametric study for scalable fabrication

open access: yesNext Materials
Graphene electrodes are integral to advancing energy storage, flexible electronics, and sensor technologies. Incorporating superhydrophobic properties into such electrodes can further enhance performance by improving corrosion resistance, reducing ...
Hedieh Pazokian, Amir Soleimani
doaj   +1 more source

Comparison of Laser-Synthetized Nanographene-Based Electrodes for Flexible Supercapacitors

open access: yesMicromachines, 2020
In this paper, we present a comparative study of a cost-effective method for the mass fabrication of electrodes to be used in thin-film flexible supercapacitors. This technique is based on the laser-synthesis of graphene-based nanomaterials, specifically,
Francisco J. Romero   +7 more
doaj   +1 more source

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