Results 61 to 70 of about 1,652,581 (291)

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Fluorescence suppression using wavelength modulated Raman spectroscopy in fiber-probe-based tissue analysis [PDF]

open access: yes, 2012
The work was funded by CR-UK/EPSRC/MRC/DoH (England) imaging programme.In the field of biomedical optics, Raman spectroscopy is a powerful tool for probing the chemical composition of biological samples.
Ashok, Praveen Cheriyan   +9 more
core   +1 more source

Optical tweezers for Raman spectroscopy

open access: yes, 2012
The integration of laser tweezers with Raman spectroscopy for optical manipulation and spectroscopic analysis of individual micro- and nanoscopic objects in physics, chemistry, and the life ...
Ramser, Kerstin   +11 more
core   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Label-free haemogram using wavelength modulated Raman spectroscopy for identifying immune-cell subset [PDF]

open access: yes, 2014
The authors thank the UK EPSRC the CR-UK/EPSRC/MRC/DoH (England) imaging Program and the European Union project FAMOS (FP7 ICT, contract no. 317744) for funding, K.D. is a Royal Society-Wolfson Merit Award Holder.Leucocytes in the blood of mammals form a
Bavishna B. Praveen   +10 more
core   +1 more source

Super-Resolution Raman Spectroscopy by Digital Image Processing

open access: yesJournal of Spectroscopy, 2013
We demonstrate the results of a strain (stress) evaluation obtained from Raman spectroscopy measurements with the super-resolution method (the so-called super-resolution Raman spectroscopy) for a Si substrate with a patterned SiN film (serving as a ...
Motohiro Tomita   +5 more
doaj   +1 more source

Raman Spectroscopy Cell-based Biosensors

open access: yesSensors, 2007
One of the main challenges faced by biodetection systems is the ability to detectand identify a large range of toxins at low concentrations and in short times.
Ioan Notingher
doaj   +1 more source

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal   +8 more
wiley   +1 more source

Raman spectroscopy: Incorporating the chemical dimension into dermatological diagnosis

open access: yesIndian Journal of Dermatology, 2016
Raman spectroscopy provides chemical analysis of tissue in vivo. By measuring the inelastic interactions of light with matter, Raman spectroscopy can determine the chemical composition of a sample.
Amit Sharma   +4 more
doaj   +1 more source

Light‐Induced Field‐Tunneling Synapses in Solution‐Processed Van Der Waals Heterostructures for Scalable, Retina‐Inspired Optical Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A scalable, solution‐processed WSe2/ZrO2‐x van der Waals heterostructure realizes a light‐induced field‐tunneling synapse (LIFTS) that activates exclusively under bright illumination, emulating the photopic adaptation of the human retina at the device level.
Kijeong Nam   +10 more
wiley   +1 more source

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