Results 171 to 180 of about 591,169 (237)

Anion‐Selective Channels Formed by Synthetic 13‐Mer Chimeric α ‐Peptide‐Oligourea Foldamers

Chemistry – A European Journal, EarlyView.
Synthetic 13‐mer α‐peptide‐oligourea chimeric foldamers self‐assemble into supramolecular ion channels, demonstrating high ion transport activity with distinct anion selectivity in lipid membranes. This study supports the design of bioinspired functional foldamer‐based channels for synthetic ion transport applications.
Chiranjit Dutta, Dandan Su, Pannaga Krishnamurthy, Zhaoxing Li, Jianwei Li, Morgane Pasco, Min Luo, Mihail Barboiu, Gilles Guichard, R. Manjunatha Kini, Prakash Kumar   +10 more
wiley   +1 more source

Well‐Defined Nickel Precatalysts: Form, Function, and Application

Chemistry – A European Journal, EarlyView.
This review provides guidance on which nickel precatalysts to choose for a given application or which properties to prioritize in reaction development. A summary of the ease of synthesis, stability, diversity, accessibility, modularity, and general applicability is provided along with a related infographic.
Morgan E. John, George A. Koutsantonis, Reto Dorta, Scott G. Stewart   +3 more
wiley   +1 more source

Lanthanide Centered and Circular Polarized Luminescence (CPL) From Tb(III) Complexes Made From Structurally Simple Methoxy‐Phenyl and Phenol‐Derived Pyridyldiamide (pda) Ligands

Chemistry – A European Journal, EarlyView.
The development of chiral pda derived methoxy ligands L1a [1(R,R)] and L1b [1(S,S)], along with their phenol derivatives L2a [2(R,R)] and L2b [2(S,S)], and their respective Tb(III) complexes is described. These Tb‐complexes exhibited Tb(III)‐centered emission upon and their chiroptical properties were probed by using both CD and CPL spectroscopy ...
Jennifer E. Jones, Jonathan A. Kitchen, Robert D. Peacock, Thorfinnur Gunnlaugsson   +3 more
wiley   +1 more source

Fibrilpaint: A Class of Amyloid‐Targeting Peptides

Chemistry – A European Journal, EarlyView.
FibrilPaints are modular peptides engineered to recognize amyloid fibrils. By systematically varying charge, sequence, and termini, their binding behavior can be tuned while retaining recognition. Successful binding ″paints″ fibrils for visualization and opens routes toward targeted degradation and diagnostic applications.
Júlia Aragonès Pedrola, Françoise A. Dekker, Katrin Guttmann, Litske M. van Leeuwen, Shalini Singh, Guy Mayer, Tommaso Garfagnini, Assaf Friedler, Stefan G. D. Rüdiger   +8 more
wiley   +1 more source

Embedding a Dinuclear Ru─Pt Photocatalyst Into Polyampholytic Graft Copolymer Matrix Enables Prolonged Hydrogen Evolution While Allowing Catalyst Repair

Chemistry – A European Journal, EarlyView.
A unimolecular polyampholytic graft copolymer matrix provides a protective confinement for an electrostatically embedded tetrapyridophenazine‐bridged heterodinuclear Ru‐Pt hydrogen evolving photocatalyst. The matrix slows the degradation kinetics of the catalyst and at the same time does not hinder its repair by ammonium persulfate.
Yurii Utievskyi, Alexander K. Mengele, Mariet Puthanagady, Nikita Vashistha, Linda Zedler, Christof Neumann, Marius Müßler, Andrey Turchanin, Benjamin Dietzek‐Ivanšić, Sven Rau, Felix H. Schacher   +10 more
wiley   +1 more source

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Design of microwave filters

IEEE Transactions on Microwave Theory and Techniques, 2002
A survey of the major techniques used in the design of microwave filters is presented in this paper. It is shown that the basis for much fundamental microwave filter theory lies in the realm of lumped-element filters, which indeed are actually used directly for many applications at microwave frequencies as high as 18 GHz.
R V Snyder
exaly   +2 more sources

Cooking Microwave Filters: Is Synthesis Still Helpful in Microwave Filter Design?

IEEE Microwave Magazine, 2020
In "Recipe for Cooking Microwave Filters," we show the classic recipe for "cooking" with narrow-or moderate-bandwidth microwave filters.While the result of this recipe is generally effective [1] (the "cake" is only rarely not edible), the tendency of some "cooks" (often young microwave engineers) is to jump to the last two steps as quickly as possible.
MacChiarella G., Tamiazzo S.
openaire   +2 more sources

Modeling of Planar Microwave Filters

33rd European Microwave Conference, 2003, 2003
An approach for modeling of planar microwave filters by the Method of Lines (MoL) is presented. The algorithm combines 2-D discretization of the cross-section with the numerically stable impedance/admittance transformation. To improve accuracy and efficiency of this approach, edge conditions are examined and the best edge position relative to the ...
L.A. Greda, R. Pregla
openaire   +1 more source

Microwave Filter Design [PDF]

Filters are an essential part of telecommunications and radar systems and are key items in the performance and cost of such systems, especially in the increasingly congested spectrum. There has been a particularly marked growth in the cellular communications industry in recent years.
openaire   +1 more source

Synthesis of microwave filters with “reactive” nodes

2012 42nd European Microwave Conference, 2012
This paper introduces the synthesis of microwave inline filters of narrow or moderate bandwidth which include, in addition to the cavities, “reactive nodes”, which can be implemented either by lumped components or by non-resonating, open or short circuited stubs.
MACCHIARELLA, GIUSEPPE, Oldoni Matteo, Seyfert Fabien, Amari Smain   +3 more
openaire   +3 more sources