Journal: Macromolecules

Article Title: Preservation of Photoluminescence Efficiency in the Ordered phases of Poly(2,3-diphenyl-1,4-phenylenevinylene) via Disturbing the Intermolecular π–π Interactions with Dendritic Aliphatic Side Chains

doi: 10.1021/ma300640n

Figure Lengend Snippet: Figure 4. Set of 1D WAXD patterns of (a) P1, (b) P2 and (c) P3. The bottom patterns in each figure are the 1D WAXD patterns of the dried samples recorded at 30 °C. The top patterns are the 1D WAXD patterns of the thermally treated samples, which were cooled from the I phases to room temperature, and recorded at 30 °C.

Article Snippet: Two-dimensional (2D) WAXD patterns were obtained using a Bruker D8Discover diffractometer with GADDS as a 2D detector.

Techniques:

Journal: Macromolecules

Article Title: Preservation of Photoluminescence Efficiency in the Ordered phases of Poly(2,3-diphenyl-1,4-phenylenevinylene) via Disturbing the Intermolecular π–π Interactions with Dendritic Aliphatic Side Chains

doi: 10.1021/ma300640n

Figure Lengend Snippet: Figure 5. 2D WAXD patterns of the ordered phases of (a) P1, (b) P2, and (c) P3 after shearing. Solid arrow indicates the direction of mechanical shearing force applied on the sample. The incident X-ray beam was along the normal direction of the 2D patterns. Schematic representations of the molecular dimensions along the chain and the lateral directions are illustrated in (d) for P1, (e) for P2, and (f) for P3, respectively.

Article Snippet: Two-dimensional (2D) WAXD patterns were obtained using a Bruker D8Discover diffractometer with GADDS as a 2D detector.

Techniques:

Journal: Brain Structure & Function

Article Title: Topographic organisation of the claustrum–amygdala–prefrontal circuitry in the common marmoset ( Callithrix jacchus )

doi: 10.1007/s00429-025-03026-z

Figure Lengend Snippet: Connectivity between the amygdala and the claustrum complex. A Coronal sections from Case F15 following a biotinylated dextran amine (BDA) injection into the basolateral amygdala complex (BLC), showing retrogradely labelled cell bodies (red) and terminal axon fields (pink) within the claustrum complex. The insular claustrum (IC) is outlined in blue; the dorsal endopiriform nucleus [dorsal (DEnD), intermediate (DEnI), and ventral (DEnV) subdivisions] in yellow. B Streamline endpoint maps derived from the population template of diffusion-weighted tractography (Marmoset Brain Mapping Atlas), showing streamline endpoints from lateral (LA), basolateral (BL), and basomedial (BM) amygdala subnuclei - claustrum streamlines in the claustrum complex. C Left: anatomical parcellation of LA, (BL, and (BM amygdala subnuclei based on T2*-weighted MRI represented in 3D space with orientation (R; right, L; left, S; superior, I; inferior). Right: distribution of BLC–claustrum streamline endpoints along the anterior–posterior (A-P) axis of the claustrum complex

Article Snippet: The marmosets were scanned in a two-dimensional diffusion-weighted spin-echo echo-planar imaging sequence on a 7T horizontal MRI (Bruker, Billerica, USA) equipped with a 30-mm quadrature coil and a 15 cm customized gradient set capable of 450 mT/m gradient strength.

Techniques: Injection, Derivative Assay, Diffusion-based Assay

Journal: Chemistry (Weinheim an der Bergstrasse, Germany)

Article Title: Hydrogen Bonded Dimer of an Alcohol with the Derived Carboxylic Acid Triggering their Sorption by Nanoporous-crystalline PPO Films.

doi: 10.1002/chem.202301441

Figure Lengend Snippet: Figure 6. a, b) 2D WAXD EDGE patterns and a’, b’) corresponding meridional profiles of a c⊥NC PPO film a, a’) before and b, b’) after uptake of ~14 wt% of BAL/BA dimer, from dilute BAL aqueous solution. Blue arrows, in a and b patterns, indicate the meridian of the patterns, where hk0 reflections are located for c⊥orientation.

Article Snippet: Two-dimensional (2D) wide-angle X-ray diffraction (WAXD) patterns were collected with a D8 QUEST Bruker diffractometer (CuKα radiation), by sending the X-ray beam perpendicular and parallel to the film surface, thus getting patterns that are called THROUGH and EDGE, respectively.

Techniques:

Journal: Biomaterials science

Article Title: Structural crystallisation of crosslinked 3D PEDOT:PSS anisotropic porous biomaterials to generate highly conductive platforms for tissue engineering applications.

doi: 10.1039/d0bm02123g

Figure Lengend Snippet: Fig. 2 Assessment of crystallisation treatment on material microstructure, chemistry and swelling properties. (A) Micrographs from high magnifi- cation SEM showing details of the surface (i/iii) and of the section (ii/iv) of the scaffolds. Yellow arrows point to the cracks. (B) X-ray diffraction (XRD) patterns of the dropcasted thin sheets. (C) Swelling of the dry scaffolds soaked in deionized water, measured as water uptake (n = 5). Scale bars: A = 2 µm. Bar graphs demonstrate the mean with error bars representing the standard deviation. Data values are presented as the associated points. * represents the statistical significance (p < 0.05) between the indicated groups using Student’s unpaired t-test.

Article Snippet: XRD investigation was carried out on the two-dimensional drop-casted samples with a benchtop X-ray diffractometer (D2 Phaser 2nd generation, Bruker).

Techniques: Standard Deviation

Journal: Macromolecules

Article Title: Control of Particle Size in the Self-Assembly of Amphiphilic Statistical Copolymers

doi: 10.1021/acs.macromol.0c02341

Figure Lengend Snippet: (a) SAXS patterns recorded for 1.0% w/w aqueous dispersions of P(EHMA- stat -MAA) copolymer nanoparticles (symbols) using a Bruker AXS Nanostar instrument. A core–shell form factor (dotted lines; eqs S8–S11 ) was fitted to determine the mean size of nanoparticles formed by copolymers comprising 30, 40, 50, 60, or 70 mol % MAA. Patterns are shifted upwards by arbitrary numerical factors (indicated on the plot) to aid clarity. (b) Schematic cartoon of the core–shell model used to fit the SAXS patterns accounting for the hydrated shell of TEA cations surrounding each nanoparticle, where r is the nanoparticle radius, Δ r is the thickness of the cation shell, and 2 R HP is the interparticle distance determined using the Hayter–Penfold approximation for the charged sphere structure factor. A protonated TEA molecule (cation, green) and an ionized MAA unit in its anionic carboxylate form (anion, blue) are also shown.

Article Snippet: SAXS patterns were recorded using laboratory SAXS instruments [either a Bruker AXS Nanostar equipped with a two-dimensional (2D) Hi-STAR multiwire gas detector, and modified with a Xenocs GeniX 3D microfocus X-ray source (Cu Kα radiation, wavelength λ = 1.54 Å) and motorized collimating scatterless slits or a Xeuss 2.0 laboratory beamline (Xenocs, Grenoble, France) equipped with a 2D Pilatus 1M pixel detector (Dectris, Baden-Daettwil, Switzerland) and a MetalJet X-ray source (Ga Kα radiation, λ = 1.34 Å; Excillum, Kista, Sweden)].

Techniques:

Journal: Macromolecules

Article Title: Control of Particle Size in the Self-Assembly of Amphiphilic Statistical Copolymers

doi: 10.1021/acs.macromol.0c02341

Figure Lengend Snippet: (a) SAXS patterns recorded using a Bruker AXS Nanostar instrument for 1.0% w/w aqueous dispersions of P(BMA- stat -DMAEMA) copolymer nanoparticles (symbols) fitted using a sphere model ( eq S7 ) (dotted lines) to calculate the mean nanoparticle radius for copolymers comprising 15, 20, 25, 30, or 40 mol % DMAEMA. Some patterns are shifted upwards by arbitrary numerical factors to aid clarity. (b) Schematic cartoon showing how the anions surround the cationic nanoparticles to form a hydrated anionic shell, where r is the nanoparticle radius and 2 R HP is the interparticle distance determined using the Hayter–Penfold approximation for the charged sphere structure factor. A protonated DMAEMA unit (cation, green) and an ionized acetate (anionic, blue) are also shown. Since the SLD of acetic acid is close to that of water and the SLD contrast between the copolymer and water is high, these SAXS measurements are not sensitive to the anionic shell. Thus, SAXS patterns are satisfactorily fitted using a simplified sphere form factor ( eq S7 ) rather than the more complicated core–shell form factor required for anionic copolymer dispersions ( Figure ).

Article Snippet: SAXS patterns were recorded using laboratory SAXS instruments [either a Bruker AXS Nanostar equipped with a two-dimensional (2D) Hi-STAR multiwire gas detector, and modified with a Xenocs GeniX 3D microfocus X-ray source (Cu Kα radiation, wavelength λ = 1.54 Å) and motorized collimating scatterless slits or a Xeuss 2.0 laboratory beamline (Xenocs, Grenoble, France) equipped with a 2D Pilatus 1M pixel detector (Dectris, Baden-Daettwil, Switzerland) and a MetalJet X-ray source (Ga Kα radiation, λ = 1.34 Å; Excillum, Kista, Sweden)].

Techniques: