Review: Current progresses of small-angle neutron scattering on soft-matters investigation

Liu, Dong; Song, Kun; Chen, Wei; Chen, Jie; Sun, Guangai; Li, Liangbin

doi:10.1016/j.nucana.2022.100011

Cited by 14 publications

(7 citation statements)

References 86 publications

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“…Hence, the interface of deuterated water-swollen PAA and hydrophobic PDMS is highly interspersed at the molecular chain scale 42 . The missing Guninier region also suggests that there is no clear phase separation in the detection region 43 , which can be as small as ~100 nm on the spectrometer Suanni 44 . Furthermore, we try to immerse the CEBH into Cu 2+ solution and then characterize the elements’ distribution via EDS mapping.…”

Section: Resultsmentioning

confidence: 99%

Connective tissue inspired elastomer-based hydrogel for artificial skin via radiation-indued penetrating polymerization

Tian,

Wang,

Cao

et al. 2024

Nat Commun

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Robust hydrogels offer a candidate for artificial skin of bionic robots, yet few hydrogels have a comprehensive performance comparable to real human skin. Here, we present a general method to convert traditional elastomers into tough hydrogels via a unique radiation-induced penetrating polymerization method. The hydrogel is composed of the original hydrophobic crosslinking network from elastomers and grafted hydrophilic chains, which act as elastic collagen fibers and water-rich substances. Therefore, it successfully combines the advantages of both elastomers and hydrogels and provides similar Young’s modulus and friction coefficients to human skin, as well as better compression and puncture load capacities than double network and polyampholyte hydrogels. Additionally, responsive abilities can be introduced during the preparation process, granting the hybrid hydrogels shape adaptability. With these unique properties, the hybrid hydrogel can be a candidate for artificial skin, fluid flow controller, wound dressing layer and many other bionic application scenarios.

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Section: Resultsmentioning

confidence: 99%

Connective tissue inspired elastomer-based hydrogel for artificial skin via radiation-indued penetrating polymerization

Tian,

Wang,

Cao

et al. 2024

Nat Commun

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“…Contrast variation SANS measurements were carried out to gain deeper insights into the spatial distribution of the three-component (borosilicate, PVA, Ca(II)-source) systems. , The contrast-matching point between the H 2 O:D 2 O mixture and the BSP130 aerogel was determined experimentally by systematically changing the liquid composition . After the scattering curves were corrected with incoherent background scattering, the intensities were plotted at three different Q values as functions of the D 2 O ratio, as shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Nanoscale Structural Characteristics and In Vitro Bioactivity of Borosilicate–Poly(vinyl alcohol) (PVA) Hybrid Aerogels for Bone Regeneration

Balogh,

Len,

Baksa

et al. 2024

ACS Appl. Nano Mater.

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High-performance biomaterials were aimed to be prepared for bone regeneration by hybridizing borosilicate with poly(vinyl alcohol)s (PVAs), incorporating Ca(II) sources, and formulating the resulting composites into mesoporous aerogels. The hybridization of borosilicate with different molecular weight PVAs was realized in a sol−gel procedure, yielding homogeneous hydrogels. These gels were functionalized in the sol−gel process by microcrystalline Ca(II) sources [CaCl 2 , β-Ca 3 (PO 4 ) 2 , hydroxyapatite/Ca 10 (PO 4 ) 6 (OH) 2 ], and finally converted to nanostructured monolithic aerogels by solvent exchange and drying in supercritical CO 2 . The chemical structures of the solid backbones were elucidated by infrared spectroscopy and solid-state NMR. Energy-dispersive X-ray spectroscopy, elemental analysis, and X-ray diffraction were used to characterize the incorporated Ca(II) sources. The nanoscale morphological features of the functionalized hybrid aerogels were characterized using scanning and transmission electron microscopy, N 2 porosimetry, and small-angle neutron scattering (SANS). Contrast variation SANS measurements confirmed the formation of a homogeneous yet nanostructured hybrid from borosilicate and PVA in all cases. In vitro tests were performed in the presence of suspended aerogel microparticles using the MG-63 osteosarcoma cell line and dental pulp stem cells. Quantitative time-lapse video microscopy measurements demonstrated the biocompatibility and biostimulating effect of the hybrid aerogel particles. These beneficial properties are attributed to the carefully designed chemical composition, porosity, and negative ζ-potential of the aerogel particles.

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“…To stabilize and prevent agglomeration of nanoparticles in solutions such as water, special additives are added to the synthesis process (Studart et al, 2007;Liu et al, 2022;Koczkur et al, 2015). These surfactants form a protecting layer around beamlines Figure 7 Trigger schemes implemented at the beamline.…”

Section: Asaxs Study Of Pvp-coated Dried Au Nanoparticlesmentioning

confidence: 99%

The new small-angle X-ray scattering beamline for materials research at PETRA III: SAXSMAT beamline P62

Haas,

Sun,

Conceição

et al. 2023

J Synchrotron Rad

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The SAXSMAT beamline P62 (Small-Angle X-ray Scattering beamline for Materials Research) is a new beamline at the high-energy storage ring PETRA III at DESY. This beamline is dedicated to combined small- and wide-angle X-ray scattering (SAXS/WAXS) techniques for both soft and hard condensed matter systems. It works mainly in transmission geometry. The beamline covers an energy range from 3.5 keV to 35.0 keV, which fulfills the requirements of the user community to perform anomalous scattering experiments. Mirrors are used to reduce the intensity of higher harmonics. Furthermore, the mirrors and 2D compound refracting lenses can focus the beam down to a few micrometres at the sample position. This option with the high photon flux enables also SAXS/WAXS tensor tomography experiments to be performed at this new beamline in a relatively short time. The first SAXS/WAXS pattern was collected in August 2021, while the first user experiment was carried out two months later. Since January 2022 the beamline has been in regular user operation mode. In this paper the beamline optics and the SAXS/WAXS instrument are described and two examples are briefly shown.

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Review: Current progresses of small-angle neutron scattering on soft-matters investigation

Cited by 14 publications

References 86 publications

Connective tissue inspired elastomer-based hydrogel for artificial skin via radiation-indued penetrating polymerization

Connective tissue inspired elastomer-based hydrogel for artificial skin via radiation-indued penetrating polymerization

Nanoscale Structural Characteristics and In Vitro Bioactivity of Borosilicate–Poly(vinyl alcohol) (PVA) Hybrid Aerogels for Bone Regeneration

The new small-angle X-ray scattering beamline for materials research at PETRA III: SAXSMAT beamline P62

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