Results 91 to 100 of about 177,307 (324)
Infrared‐Driven Polymer Intelligence
Advanced Intelligent Systems, EarlyView.Infrared spectroscopy is combined with machine learning to accurately predict the glass transition temperature of polymers and enable real‐time process control. The approach outperforms traditional molecular fingerprints by capturing subtle spectral variations due to impurities and additives.
Gorkem Anil Al +4 more
wiley +1 more source
Genomics-inspired discovery of massiliachelin, an agrochelin epimer from Massilia sp. NR 4-1
Beilstein Journal of Organic Chemistry, 2019 A putative siderophore locus was detected in the genome of the violacein-producing bacterium Massilia sp. NR 4-1 and predicted to direct the biosynthesis of a molecule that is structurally related to the thiazoline-containing siderophore micacocidin.
Jan Diettrich +2 more
doaj +1 more source
Applied Sciences, 2019 L-phenylseptin (L-Phes) and D-phenylseptin (D-Phes) are amphibian antimicrobial peptides isolated from the skin secretion of Hypsiboas punctatus. In the N-termini, L-Phes and D-Phes contain three consecutive phenylalanine residues, l-Phe-l-Phe-l-Phe and ...
Batsaikhan Mijiddorj +4 more
doaj +1 more source
A Failed Encounter in Mathematics and Chemistry: The Folded Models of van ‘t Hoff and Sachse [PDF]
, 2016 Three-dimensional material models of molecules were used throughout the 19th century, either functioning as a mere representation or opening new epistemic horizons. In this paper, two case studies are examined: the 1875 models of van ‘t Hoff and the 1890
Friedman, Michael
core
Biocatalytic Synthesis of Stereospecific Triketide Lactones using Polyketide Synthases [PDF]
, 2016 Polyketide synthases are modular enzymes that create and modify large acyl chains. The domains and modules of polyketide synthases allow us to create molecules that resemble naturally occurring products by applying a biocatalytic in vitro in vivo ...
Alexander, Bradley
core +1 more source
Ribosomal Synthesis of Topologically Defined Thioisoindole‐Bridged Bicyclic Peptides
Angewandte Chemie, EarlyView.A flexible in vitro translation (FIT) system‐based strategy for ribosomal synthesis of thioisoindole‐bridged bicyclic (TiB) peptides is developed. The flexizyme substrate Ac‐Ala(NtBA)Sc‐CME is efficiently incorporated into FIT to generate ribosomal peptides bearing N‐terminal Ac‐Ala(NtBA)Sc as the cyclization handle, which after mild deprotection ...
Yue Zhang +3 more
wiley +2 more sources
Organotin(IV) Dithiocarbamate Complexes: Chemistry and Biological Activity
Molecules, 2018 Significant attention has been given to organotin(IV) dithiocabamate compounds in recent times. This is due to their ability to stabilize specific stereochemistry in their complexes, and their diverse application in agriculture, biology, catalysis and as
Jerry O. Adeyemi, Damian C. Onwudiwe
doaj +1 more source
Enantioselective PCCP Brønsted acid-catalyzed aza-Piancatelli rearrangement. [PDF]
, 2019 An enantioselective aza-Piancatelli rearrangement has been developed using a chiral Brønsted acid based on pentacarboxycyclopentadiene (PCCP). This reaction provides rapid access to valuable chiral 4-amino-2-cyclopentenone building blocks from readily ...
Delgado, Jose M +5 more
core
Buried chloride stereochemistry in the Protein Data Bank
BMC Structural Biology, 2014 BackgroundDespite the chloride anion is involved in fundamental biological processes, its interactions with proteins are little known. In particular, we lack a systematic survey of its coordination spheres.ResultsThe analysis of a non-redundant set ...
O. Carugo
semanticscholar +1 more source
On the Nature of Improper Hydrogen Bonding in RCH2F and RCHF2 Motifs
Angewandte Chemie, EarlyView.The nature of ‘improper’ hydrogen bonds is explored in FnC─H⋯X systems, such as RCF2H interaction with chloride and water. It is noted that increased fluorination decreases the positive charge density on H but increases it on C, thus these interactions are dominated by electrostatic attraction to C over H.
Bruno A. Piscelli +3 more
wiley +2 more sources