Topic
Diad
About: Diad is a research topic. Over the lifetime, 435 publications have been published within this topic receiving 11014 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: The composition and sequence of 2-acetamido-2-deoxy-beta-D-glucose (GlcNAc) and GlcN) residues in partially N-deacetylated chitosans, prepared under homogeneous and heterogeneous conditions, have been determined by 1H-n.r.m. spectroscopy.
443 citations
TL;DR: Toxins that have unrelated structures but similar functions possess conserved key functional residues, organized in an identical topology, suggesting a convergent functional evolution for these small proteins.
356 citations
TL;DR: The sequence of monomer units, l -guluronate and d -mannuronate, markedly influenced the chemical shifts and the relative occurrence of G-centred triads deviated significantly from those predicted by first-order Markovian statistics.
319 citations
TL;DR: It is suggested that the two pK a, values of the active site aspartyls arise from a structure not unlike that in maleic acid with a hydrogen‐bonded intermediate species and a dicarboxylate characterised by electrostatic repulsions between the two negatively charged groups.
267 citations
TL;DR: In this article, a series of cast films of poly(3-alkylthiophenes) (P3ATs, A = hexyl, octyl, dodecyl, and hexadecyl) with different head-to-tail (HT) diad content (70−100%) was studied.
Abstract: Thermochromism of a series of cast films of poly(3-alkylthiophenes) (P3ATs, A = hexyl, octyl, dodecyl, and hexadecyl) with different head-to-tail (HT) diad content (70−100%) was studied. The thermochromic behavior is found to be controlled by the HT diad content and the side chain length. P3ATs with moderate HT diad content give rise to a clear thermochromic isosbestic point irrespective of the length of the alkyl side chain. Regioregular polymers possessing a >90% HT diad content exhibit either a continuous thermochromic blue shift or an isosbestic point, depending on the alkyl side chain length. The different thermochromic characteristics are attributed to subtle morphological differences between the polymers. DSC and X-ray diffraction studies indicate that P3AT samples with moderate HT regularity are formally amorphous with a quasi-ordered phase dispersed in continuous disordered domains. P3ATs with high HT regularity consist of crystalline, quasi-ordered, and disordered phases. For polymers with short...
220 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2024 | 4 |
| 2023 | 11 |
| 2022 | 14 |
| 2021 | 4 |
| 2020 | 8 |
| 2019 | 1 |