Results 51 to 60 of about 493,714 (288)

Optimisation of wavelength modulated Raman spectroscopy : towards high throughput cell screening [PDF]

open access: yes, 2013
In the field of biomedicine, Raman spectroscopy is a powerful technique to discriminate between normal and cancerous cells. However the strong background signal from the sample and the instrumentation affects the efficiency of this discrimination ...
Andrew Riches   +17 more
core   +2 more sources

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

open access: yesAdvanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han   +6 more
wiley   +1 more source

Coupled Raman-Raman modes in the ionic Raman scattering process

open access: yesApplied Physics Letters, 2018
We employ a lattice Hamiltonian to examine the dynamics of coupled normal modes excited through a nonlinear phononic process, extending the model beyond infrared and first-order Raman active mode couplings to include interactions between symmetry-allowed Raman active modes.
Mingqiang Gu, James M. Rondinelli
openaire   +2 more sources

XMM-Newton View of Pulsating Iron Fluorescent Emission from Centaurus X-3

open access: yesThe Astrophysical Journal
Centaurus X–3 (Cen X–3) is a bright, high-mass X-ray binary pulsar. We present a pulse phase–resolved X-ray spectral analysis of data from an archival XMM-Newton observation of Cen X–3 taken during the high state of the source.
Kinjal Roy   +2 more
doaj   +1 more source

Using Raman Spectroscopy as a Fast Tool to Classify and Analyze Bulgarian Wines—A Feasibility Study

open access: yesMolecules, 2019
Raman spectroscopy, being able to provide rich information about the chemical composition of the sample, is gaining an increasing interest in the applications of food.
Vera Deneva   +7 more
doaj   +1 more source

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

Harnessing aquatic macrophytes for water pollution remediation through constructed wetlands and future perspectives

open access: yesDiscover Chemistry
Water pollution remains a critical global challenge driven by rapid industrialization, agricultural intensification, and urban expansion. Aquatic macrophyte-based bioremediation has emerged as a sustainable and cost-effective strategy for the treatment ...
Archana Sahu   +3 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao   +6 more
wiley   +1 more source

Combined information from Raman spectroscopy and optical coherence tomography for enhanced diagnostic accuracy in tissue discrimination [PDF]

open access: yes, 2014
We thank the UK EPSRC for funding, the CR-UK/EPSRC/MRC/DoH (England) imaging programme, the European Union project FAMOS (FP7 ICT, contract no. 317744) and the European Union project IIIOS (FP7/2007-2013, contract no. 238802).
C. Simon Herrington   +11 more
core   +1 more source

Parametrising harmonic strengths in Raman driven spin noise spectra of neutral atoms

open access: yesScientific Reports
We study the appearance of harmonics in spin noise correlations as a result of strong optical drive using a pair of coherent Raman beams in hot Rubidium vapour.
Sayari Majumder, Saptarishi Chaudhuri
doaj   +1 more source

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