Results 51 to 60 of about 3,473,423 (297)

Vortex molecules in coherently coupled two-component Bose-Einstein condensates

, 2004
A vortex molecule is predicted in rotating two-component Bose-Einstein condensates whose internal hyperfine states are coupled coherently by an external field. A vortex in one component and that in the other are connected by a domain wall of the relative
D. Yoshioka, G. E. Volovik, Kenichi Kasamatsu, L. M. Pismen, Makoto Tsubota, Masahito Ueda, R. J. Donnelly   +6 more
core   +1 more source

Spin- and energy-dependent tunneling through a single molecule with intramolecular spatial resolution [PDF]

, 2010
We investigate the spin- and energy dependent tunneling through a single organic molecule (CoPc) adsorbed on a ferromagnetic Fe thin film, spatially resolved by low-temperature spin-polarized scanning tunneling microscopy. Interestingly, the metal ion as
Atodiresei, Nicolae, Bluegel, Stefan, Brede, Jens, Caciuc, Vasile, Hoffmann, Germar, Kuck, Stefan, Lazic, Predrag, Morikawa, Yoshitada, Wiesendanger, Roland   +8 more
core   +2 more sources

Biophysical analysis of angiotensin II and amyloid‐β cross‐interaction in aggregation and membrane disruption

FEBS Letters, EarlyView.
Angiotensin II (AngII), a neuropeptide, interacts with amyloid‐β (Aβ), a key player in Alzheimer's disease. This study reveals that AngII reduces Aβ aggregation and membrane disruption in vitro. Biophysical assays and molecular modeling suggest AngII binds disordered Aβ forms, potentially modulating early amyloidogenic events and contributing to ...
Mohsen Habibnia, Eric Catalina‐Hernandez, Maialen Cabrerizo‐Idiazabal, Ramon Barnadas‐Rodríguez, Mario Lopez‐Martin, Alex Peralvarez‐Marin   +5 more
wiley   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Musielak-Orlicz-Hardy Spaces Associated with Operators Satisfying Reinforced Off-Diagonal Estimates

Analysis and Geometry in Metric Spaces, 2013
Let X be a metric space with doubling measure and L a one-to-one operator of type ω having a bounded H∞ -functional calculus in L2(X) satisfying the reinforced (pL; qL) off-diagonal estimates on balls, where pL ∊ [1; 2) and qL ∊ (2;∞]. Let φ : X × [0;∞) →
Bui The Anh, Cao Jun, Ky Luong Dang, Yang Dachun, Yang Sibei   +4 more
doaj   +1 more source

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source

Single molecule Raman spectroscopy and local work function fluctuations

, 2004
Single molecule Raman spectroscopy provides information on individual molecules with vibrational-level resolution. The unique mechanisms leading to the huge Raman cross-section enhancement necessary for single molecule sensitivity are under intense ...
Abdel-Kerim, Andreev, Arenas, Avouris, Bizzarri, Bjerneld, Bosnick, Constantino, Etchegoin, Furtak, Gersten, Gersten, Gersten, Gilad Haran, Habuchi, Hildebrandt, Inoue, Jia, Kneipp, Krug, Lee, Lemma, Lombardi, Lukatksy, Michaels, Michaels, Moskovits, Neporent, Nie, Otto, Otto, Persson, Smoluchowski, Wandelt, Wang, Weiss, Xu, Xu, Yamada   +38 more
core   +1 more source

Three-terminal devices to examine single molecule conductance switching [PDF]

, 2006
We report electronic transport measurements of single-molecule transistor devices incorporating bipyridyl-dinitro oligophenylene-ethynylene dithiol (BPDN-DT), a molecule known to exhibit conductance switching in other measurement configurations.
Ciszek, J. W., Keane, Z. K., Natelson, D., Tour, J. M.   +3 more
core   +3 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

The Area Law of Molecular Entropy: Moving beyond Harmonic Approximation

Entropy
This article shows that the gas-phase entropy of molecules is proportional to the area of the molecules, with corrections for the different curvatures of the molecular surface.
Amitava Roy, Tibra Ali, Vishwesh Venkatraman   +2 more
doaj   +1 more source