Search results

The creation of artificial structures using a combination of scaffolds, cells, and/or soluble/mechanical components is one of these solutions for bone reconstitution.
The structure of the scaffolds was examined using Fourier transform-infrared spectroscopy (FTIR) (SHIMADZO IRFFINITY) to determine if binding had occurred or not and to identify changes in the functional groups that were recorded in the wave number range of 400 to 4000 cm-1.
Cuda, Development of 3D PVA scaffolds for cardiac tissue engineering and cell screening applications, Journal of The Royal Society of Chemistry. 9 (2019) 4246-4257
Kundu, Mechanical and biological investigations of chitosan-polyvinyl alcohol based ZrO2 doped porous hybrid composites for bone tissue engineering applications, Journal of The Royal Society of Chemistry. issue,1-3 (2013) [18] Z.
Kundu, Mechanical and biological investigations of chitosan–polyvinyl alcohol based ZrO 2 doped porous hybrid composites for bone tissue engineering applications, New Journal of Chemistry. 41 (2017) 7524-7530

However, it is challenging to remove MB from wastewater due to its complex structure.
The surface area, the pore structure, the particle size of carbon, the surface acidity, and the functionality of activated carbon influenced the adsorption capacity and interaction between MB and activated carbon.
Pore ​​structure can affect the surface area of ​​activated carbon.
Prasetyoko, “Review on recent advances of carbon based adsorbent for methylene blue removal from waste water,” Materials Today Chemistry, vol. 16.
Li et al., “Magnetic Fe3O4/ZIF-8 optimization by Box-Behnken design and its Cd(II)-adsorption properties and mechanism,” Arabian Journal of Chemistry, vol. 15, no. 10, p. 104119, Oct. 2022, doi: 10.1016/j.arabjc.2022.104119.  

Introduction One of the aims of biomedical materials research is to produce materials with mimic structure of natural hard tissue.
Thus, it has lots of strains and defects with nano-scale sizes in the crystal structure.
Our aim is to clarify the relationship between nano-sized defect structure and bioactivity of biological apatite [6, 7].
Bone HAp ceramics include lots of strains and defects in the crystal structure.
Matsumoto, Nano-structure of apatite-fiber scaffolds and its cell differentiation, J.

The grains sizes of the composite coatings decrease when +Jm is increased from 5A/dm2 to 20A/dm2, while the reappearance of large grains structure at 25A/dm2.
Increasing +Jm from 5A/dm2 to 20A/dm2 leads to a decrease of the large grains sizes and, ultimately, to their complete disappearance and replacement with the finer facetted structure at +Jm of 20A/dm2 (Fig.4c).
However, further increasing +Jm in the range of 20~25A/dm2 results in the reappearance of larger grains structure (Fig.4d).
Increasing +Jm from 5A/dm2 to 20A/dm2 leads to the refinement in grained structure and the improvement of microstructures.
Guo: Chemistry Vol.3 (2003), p.178-183

The heterojunction structure Cd(OH)2/Bi10Cd3O20 was successfully constructed through a straightforward hydrothermal method.
The nanorods stack on the surfaces of the microblocks to form the heterojunction structure.
To better understand the details of the composite structure, the samples were analyzed using EDX.
HRTEM and SAED images also confirmed the detailed structure of CBDO (regions A and B in Figure 3(g)).
Nagarajan, Cd(OH)F: Synthesis, structure, optical and photocatalytic properties, Journal of Fluorine Chemistry 182 (2016) 98-103.

As a result of such variations in composition and structure, the mechanical properties on both sides exhibit a significant difference.
Only when the water evaporates faster than the PVA or CS permeates, the gradient structure may be hold.
The structure and mechanical properties of membrane were investigated.
Except for the CS-rich layer (Fig.7b), all layers exhibit phase-separation structure.
Its gradient structure is proved by element analysis and SEM.

Meanwhile, the formula of the hyperfine structure constant for a 3d8 ion in an ideal octahedron can be similarly derived.
P0 is the dipolar hyperfine structure parameter of the free 3d8 ion.
In the formula of the hyperfine structure constant, the dipolar hyperfine structure parameters P0 are -38 ´ 10-4 cm-1 and 367 ´ 10-4 cm-1 for Fe0 and Mn- , respectively [12].
[14] R.W, Wyckoff: Crystal Structures (Interscience, New York 1951)
Weast: CRC Handbook of Chemistry and Physics (CRC Press, Boca Raton 1989)

Introduction Due to the decreasing of source of energy on earth, the vehicles manufacture would like to use lightweight structures to save the energy.
The lightweight structures are made of aluminium or magnesium alloy which is hard to weld.
Table 1 Chemical composition of 5052 element Si Cu Mg Zn Mn Cr Fe Al content 0.25 0.10 2.32 0.10 0.10 0.18 0.40 allowance It's difficult for Al-Mg aluminum alloy display it grain in normal chemistry etching.
To display the metallographic structure it is suggest by GB/T 3246.1~3246.2-2000, uses electrolytic and anode film deals with the joint section and observing the structure with differential interference contrast method (DIC).
Therefore SPR joint has great dynamic fatigue strength according to structure strengthening.

Attempts to improve the ductility of the alloys by chemistry modifications or microstructural control have shown limited success [3-4].
This implies that the mechanically activated powders possess essentially the crystal structure of alpha Ti and Al, which has very similar features to its SAED pattern, that is, during the mechanical activation process the Ti and A1 structure is maintained in situ.
Conclusions a) The spark plasma synthesis can be performed on nanoscale particles of reactant materials to achieve a dense reaction product that substantially retains the ultrafine structure of the starting materials.
b) The grain growth and hence the loss of the nanocrystalline structure, which would normally be expected to occur after product formation, are minimized.
d) During the mechanical activation process the Ti and A1 structure is maintained in situ.

The AgNPs-coated ITO substrates were then used to fabricate OSCs with a structure of ITO/AgNPs/PEDOT:PSS/P3HT:PCBM/LiF/Al (Fig. 1a).
Crystal structure was investigated by an X-ray diffractometer (XRD, Rigaku).
Fig. 1 The schematic structure of investigated devices with silver nanoprisms on the ITO surface (a).
Figure 2a shows the UV-vis absorbance spectra of devices with a structure of ITO/AgNPs/PEDOT:PSS/P3HT:PCBM.
Acknowledgement This work has been supported by the National Natural Science Foundation of China (No.60676051), the Natural Science Foundation of Tianjin (No.07JCYBJC12700), and the Foundation of Key Discipline of Material Physics and Chemistry of Tianjin.