2022年1月1日 · The X-ray diffraction pattern of SF-PVA blend films (Fig. 1) exhibits the XRD peaks of both silk fibroin and PVA. The XRD diffractogram of PVA shows a strong characteristic of crystalline peak at 19.4o and a broad small peak around 40.31° [6], [7], [8], [9], [10].

2024年10月1日 · Chemical crosslinking yields more stable hydrogels and allows for the regulation of properties such as porosity and strength. In general, SF hydrogels obtained through chemical crosslinking provide robust structures effective for tissue regeneration, improving joint injury treatment, or acting as biolubricants [25].

2024年8月15日 · The XRD results revealed two primary varieties of SF, characterized by random coil and a β-angle or antiparallel β-folding. As depicted in Fig. 2 c, UCNPS@SFH, UCNPS@SFL, and UCNPS@SFM exhibited distinctive broadened signals at 20.3°, which is the characteristic peaks of SF and became more prominent with increasing SF concentrations (Yang et ...

(1)利用氯化钙-甲酸溶液制备了两种新型丝素蛋白膜 (SF-1.5和SF-3.0)，通过FTIR和XRD表征及拟合结果发现：SF-1.5中主要以silk Ⅱ (β -折叠)结构为主，而SF-3.0中主要是ssilk Ⅰ (α -螺旋或无规则线团)结构。

Figure 4 shows the XRD pattern of the SF/SPI-based composite scaffolds. A weak peak locates at 9.7° and 20.2° corresponding to the β-sheet crystalline structure (silk-II structure) of native...

2019年2月7日 · The prepared SF–AgNPs BNCs were characterized with XRD, FT-IR, SEM, DSC, and TGA–DTG to study its physical properties and application, AC conductivity, and dielectric properties. It was observed that AgNPs changed the structural, thermal, dielectric, and AC conductivity of the SF films.

Structural, chemical, surface morphology, mechanical and thermal property changes of silk fibroin by the addition of HPMC were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), universal testing machine (UTM), thermogravimetric (TGA) and differential scanning calorimetry...

2014年10月4日 · To obtain water-insoluble silk fibroin (SF) materials, polyethylene glycol diglycidyl ether (PEG-DE) was selected as a crosslinking agent to prepare SF films (blends). The reaction conditions were optimized for the crosslinking of the SF molecules. The hot water stability of the blends was measured using BCA protein assay and gravimetric analysis.

The X-ray structure factor (SF) intensities can be measured by diffraction experiments involving either X-rays, γ γ -rays or electron beams. It is directly related to the electron density within the unit cell of a material, n(r) n (r), by a Fourier transformation 1:

2019年5月14日 · The XRD pattern of SF demonstrates diffraction peaks at 14.51 and 17.29°, as well as a less intense peak at 20.74° to confirm the existence of β-sheet structures (Tao et al., 2007; Malay et al., 2008; De Moraes et al., 2010).