Results 31 to 40 of about 1,108,811 (290)

Molecular ion trap-depletion spectroscopy of BaCl$^+$

open access: yes, 2011
We demonstrate a simple technique for molecular ion spectroscopy. BaCl$^+$ molecular ions are trapped in a linear Paul trap in the presence of a room-temperature He buffer gas and photodissociated by driving an electronic transition from the ground X$^1 ...
Chen, Kuang   +6 more
core   +1 more source

Dynamic Heterogeneity in Fully Miscible Blends of Polystyrene with Oligostyrene [PDF]

open access: yes, 2013
Binary blends of polystyrene with oligostyrene are perfectly miscible (χ=0) yet dynamically heterogeneous. This is evidenced by independent probing of the dipole relaxation perpendicular to the backbone by dielectric spectroscopy and molecular dynamics ...
Floudas, George   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

A compact two-wave dichrometer of an optical biosensor analytical system for medicine

open access: yesEPJ Web of Conferences, 2017
An experimental model has been developed of a compact two-wave dichrometer on the base of LEDs that is well-suited to work with “liquid” DNA nanoconstructions as biosensing units.
Chulkov D.P.   +5 more
doaj   +1 more source

Optical spectroscopy of molecular junctions: Nonequilibrium Green's functions perspective

open access: yes, 2016
We consider optical spectroscopy of molecular junctions from the quantum transport perspective when radiation field is quantized and optical response of the system is simulated as photon flux.
Galperin, Michael, Gao, Yi
core   +1 more source

Dissociative photoionization of NO across a shape resonance in the XUV range using circularly polarized synchrotron radiation. [PDF]

open access: yes, 2019
We report benchmark results for dissociative photoionization (DPI) spectroscopy and dynamics of the NO molecule in the region of the σ* shape resonance in the ionization leading to the NO+(c3Π) ionic state.
Born M.   +8 more
core   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Laser scanning reflection-matrix microscopy for aberration-free imaging through intact mouse skull

open access: yesNature Communications, 2020
Microscopic imaging of the brain usually requires thinning of the skull, as it causes complex aberration. Here, the authors introduce a label-free imaging modality termed laser scanning reflection-matrix microscopy, which allows for correcting these ...
Seokchan Yoon   +4 more
doaj   +1 more source

Towards chemical structure resolution with nanoscale nuclear magnetic resonance spectroscopy

open access: yes, 2015
Nuclear magnetic resonance (NMR) spectroscopy has approached the limit of single molecule sensitivity, however the spectral resolution is currently insufficient to obtain detailed information on chemical structure and molecular interactions.
Du, Jiangfeng   +4 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

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