Results 111 to 120 of about 42,446 (256)

Highly anisotropic Bose-Einstein condensates: crossover to lower dimensionality

, 2002
We develop a simple analytical model based on a variational method to explain the properties of trapped cylindrically symmetric Bose-Einstein condensates (BEC) of varying degrees of anisotropy well into regimes of effective one dimension (1D) and ...
A. Görlitz, A.E. Leanhardt, A.I. Safonov, A.L. Fetter, A.L. Fetter, B.A. McKinney, B.I. Schneider, B.P. Anderson, D. Baye, D.S. Petrov, D.S. Petrov, E. Lieb, E. Lundh, E.B. Kolomeisky, F. Dalfovo, F. Dalfovo, G. Baym, H. Ott, J. Arlt, J. Denschlag, J.O. Andersen, K. Bongs, Kunal K. Das, Kunal K. Das, L. Tonks, M. Fliesser, M. Key, M. Olshanii, M.D. Girardeau, M.D. Girardeau, M.D. Girardeau, Markus Greiner, N.H. Dekker, P. Schuck, P. Öhberg, S. Stringari, T. Bergeman, T. Kishimoto, T.-L. Ho, U. Al Khawaja, V. Dunjko, W. Hänsel, W. Hänsel, Y. Castin   +43 more
core   +1 more source

Photocaged Oxytocin and Vasopressin Probes to Decipher Neuropeptide Signalling With High Spatiotemporal Resolution

Angewandte Chemie International Edition, EarlyView.
Novel and biocompatible photoactivatable oxytocin and vasopressin probes, utilising state‐of‐the‐art photocages, remain inactive in the dark. Light exposure facilitates rapid spatiotemporal receptor activation and phospholipase C (PLC)‐mediated downstream signalling. Figure created in https://BioRender.com.
Konstantin Raabe, Predrag Kalaba, Xuan Ling Hilary Yong, Greta Crudeli, Sarah Melzer, Erik Keimpema, Victor Anggono, Markus Muttenthaler   +7 more
wiley   +1 more source

The influence of prosthetic suspension on gait and cortical modulations is persons with a transfemoral amputation: socket-suspended versus bone-anchored prosthesis

Journal of NeuroEngineering and Rehabilitation
Background Persons with a transfemoral amputation (TFA) often experience difficulties in daily-life ambulation, including an asymmetrical and less stable gait pattern and a greater cognitive demand of walking.
Vera Kooiman, Joris van der Cruijsen, Ruud Leijendekkers, Nico Verdonschot, Teodoro Solis-Escalante, Vivian Weerdesteyn   +5 more
doaj   +1 more source

SNAC-tag for sequence-specific chemical protein cleavage. [PDF]

, 2019
Site-specific protein cleavage is essential for many protein-production protocols and typically requires proteases. We report the development of a chemical protein-cleavage method that is achieved through the use of a sequence-specific nickel-assisted ...
Dang, Bobo, DeGrado, William F, Hu, Hailin, Mensa, Bruk, Mravic, Marco, Schmidt, Nathan   +5 more
core  

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

Chemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati, Claudio Trapella, Vinicio Zanirato, Virginia Cristofori, Anna Fantinati   +4 more
wiley   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

Versatile Palladium‐Catalyzed C‐H Arylation of Fluoroarenes with 2‐Chloropyridine Derivatives

Chemistry – A European Journal, EarlyView.
Direct C─H arylation of fluoroarenes with 2‐chloropyridines is enabled by a simple Pd/SPhos system in isopropyl acetate. The method uses inexpensive reactants and shows broad scope and high yields. DFT computations explain reactivity and selectivity.
Federico Belnome, Péter P. Fehér, András Stirling, Csongor G. Németh, Tamás Hergert, György M. Keserű, Péter Ábrányi‐Balogh   +6 more
wiley   +1 more source

Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers

Chemistry – A European Journal, EarlyView.
ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda, Alan Pham, SreeNidhi Karnati, Natalia Soto Rodriguez, Alyssa Toner, Wenshe Ray Liu   +5 more
wiley   +1 more source

Room‐Temperature Helix‐to‐Disc Conversion of Thia[6]helicene S,S‐Dioxides to Coronene via In Situ Phenoxide Anion Generation

Chemistry – A European Journal, EarlyView.
In situ phenoxide formation at the benzene terminus triggers room‐temperature conversion of thia[6]helicene S,S‐dioxides to coronene. The solubility contrast drives product precipitation, enabling isolation by simple filtration. This pericyclic annulation between the helical termini provides direct access to coronene‐type planar architectures ...
Kaito Seino, Takashi Murase
wiley   +1 more source