My watch list
my.chemeurope.com  
Login  

444 Newest Publications in proceedings of the national academy of sciences current issue

rss
matching the following criteria

Rational design of self-assembly pathways for complex multicomponent structures [Chemistry]

19-May-2015 | William M. Jacobs; Aleks Reinhardt; Daan Frenkel, Proceedings of the National Academy of Sciences current issue, 2015

The field of complex self-assembly is moving toward the design of multiparticle structures consisting of thousands of distinct building blocks. To exploit the potential benefits of structures with such “addressable complexity,” we need to understand the factors that optimize the yield and the ...

more

Lester Reed: A "complex" man who loved science [Retrospectives]

19-May-2015 | Marvin L. Hackert; Dean R. Appling; Alan M. Lambowitz, Proceedings of the National Academy of Sciences current issue, 2015

Lester J. Reed, a pioneer in the field of biochemistry, died peacefully in Austin, Texas on January 14, 2015 at the age of 90. Lester Reed was born in New Orleans on January 3, 1925. He showed an early interest in chemistry, having his own laboratory in a shed under...

more

Visible photoelectrochemical water splitting into H2 and O2 in a dye-sensitized photoelectrosynthesis cell [Chemistry]

12-May-2015 | Leila Alibabaei; Benjamin D. Sherman; Michael R. Norris; M. Kyle Brennaman; Thomas J. Meyer, Proceedings of the National Academy of Sciences current issue, 2015

A hybrid strategy for solar water splitting is exploited here based on a dye-sensitized photoelectrosynthesis cell (DSPEC) with a mesoporous SnO2/TiO2 core/shell nanostructured electrode derivatized with a surface-bound Ru(II) polypyridyl-based chromophore–catalyst assembly. The assembly, ...

more

Sensing of molecules using quantum dynamics [Chemistry]

12-May-2015 | Agostino Migliore; Ron Naaman; David N. Beratan, Proceedings of the National Academy of Sciences current issue, 2015

We design sensors where information is transferred between the sensing event and the actuator via quantum relaxation processes, through distances of a few nanometers. We thus explore the possibility of sensing using intrinsically quantum mechanical phenomena that are also at play in photobiology, ...

more

In vitro selection of a sodium-specific DNAzyme and its application in intracellular sensing [Chemistry]

12-May-2015 | Seyed-Fakhreddin Torabi; Peiwen Wu; Claire E. McGhee; Lu Chen; Kevin Hwang; Nan Zheng; Jianjun Cheng; Yi Lu, Proceedings of the National Academy of Sciences current issue, 2015

Over the past two decades, enormous progress has been made in designing fluorescent sensors or probes for divalent metal ions. In contrast, the development of fluorescent sensors for monovalent metal ions, such as sodium (Na+), has remained underdeveloped, even though Na+ is one the most abundant ...

more

Tryptophan-to-heme electron transfer in ferrous myoglobins [Chemistry]

05-May-2015 | Roberto Monni; André Al Haddad; Frank van Mourik; Gerald Auböck; Majed Chergui, Proceedings of the National Academy of Sciences current issue, 2015

It was recently demonstrated that in ferric myoglobins (Mb) the fluorescence quenching of the photoexcited tryptophan 14 (*Trp14) residue is in part due to an electron transfer to the heme porphyrin (porph), turning it to the ferrous state. However, the invariance of *Trp decay times in ferric ...

more

Organometallic rotaxane dendrimers with fourth-generation mechanically interlocked branches [Chemistry]

05-May-2015 | Wei Wang; Li-Jun Chen; Xu-Qing Wang; Bin Sun; Xiaopeng Li; Yanyan Zhang; Jiameng Shi; Yihua Yu; Li Zhang; Minghua Li ..., Proceedings of the National Academy of Sciences current issue, 2015

Mechanically interlocked molecules, such as catenanes, rotaxanes, and knots, have applications in information storage, switching devices, and chemical catalysis. Rotaxanes are dumbbell-shaped molecules that are threaded through a large ring, and the relative motion of the two components along ...

more

Heterogeneity of functional groups in a metal-organic framework displays magic number ratios [Chemistry]

05-May-2015 | Andrew C.-H. Sue; Ranjan V. Mannige; Hexiang Deng; Dennis Cao; Cheng Wang; Felipe Gándara; J. Fraser Stoddart; Steph ..., Proceedings of the National Academy of Sciences current issue, 2015

Multiple organic functionalities can now be apportioned into nanoscale domains within a metal-coordinated framework, posing the following question: how do we control the resulting combination of “heterogeneity and order”? Here, we report the creation of a metal–organic framework, MOF-2000, whose ...

more

Unraveling functional significance of natural variations of a human galectin by glycodendrimersomes with programmable glycan surface [Chemistry]

05-May-2015 | Shaodong Zhang; Ralph-Olivier Moussodia; Sabine Vértesy; Sabine André; Michael L. Klein; Hans-Joachim Gabius; Virgil ..., Proceedings of the National Academy of Sciences current issue, 2015

Surface-presented glycans (complex carbohydrates) are docking sites for adhesion/growth-regulatory galectins within cell–cell/matrix interactions. Alteration of the linker length in human galectin-8 and single-site mutation (F19Y) are used herein to illustrate the potential of glycodendrimersomes ...

more

An Mn(V)-oxo role in splitting water? [Chemistry]

28-Apr-2015 | R. David Britt; Daniel L. M. Suess; Troy A. Stich, Proceedings of the National Academy of Sciences current issue, 2015

The oxygen-evolving complex (OEC) of photosystem II (PSII) uses the full spectrum of visible light to oxidize water, producing O2 and bioactivated electrons and protons (1, 2). The unique nature of this crucial bioenergetic reaction has led to much interest in harnessing analogous photochemistry ...

more

Page 1 From 45
Subscribe to e-mail updates relating to your search

You will receive via e-mail the latest search results matching your search criteria. This service is free of charge and can be cancelled at any time.

Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE