hierarchically porous
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2022 ◽  
Vol 13 (1) ◽  
pp. 8
Author(s):  
Arish Dasan ◽  
Jozef Kraxner ◽  
Luca Grigolato ◽  
Gianpaolo Savio ◽  
Hamada Elsayed ◽  
...  

The present study illustrates the manufacturing method of hierarchically porous 3D scaffolds based on åkermanite as a promising bioceramic for stereolithography. The macroporosity was designed by implementing 3D models corresponding to different lattice structures (cubic, diamond, Kelvin, and Kagome). To obtain micro-scale porosity, flame synthesized glass microbeads with 10 wt% of silicone resins were utilized to fabricate green scaffolds, later converted into targeted bioceramic phase by firing at 1100 °C in air. No chemical reaction between the glass microspheres, crystallizing into åkermanite, and silica deriving from silicone oxidation was observed upon heat treatment. Silica acted as a binder between the adjacent microspheres, enhancing the creation of microporosity, as documented by XRD, and SEM coupled with EDX analysis. The formation of ‘spongy’ struts was confirmed by infiltration with Rhodamine B solution. The compressive strength of the sintered porous scaffolds was up to 0.7 MPa with the porosity of 68–84%.


2022 ◽  
Author(s):  
Ojodomo J. Achadu ◽  
Njemuwa Nwaji ◽  
Dong Kyu Lee ◽  
Jaebeom Lee ◽  
Eser Metin Akinoglu ◽  
...  

The global pandemic of COVID-19 is an example of how quickly a disease-causing virus can take root and threaten our civilization. Nowadays, ultrasensitive and rapid detection of contagious pathogens is...


2022 ◽  
pp. 163624
Author(s):  
Xueyan Lei ◽  
Fei Pan ◽  
Chaoran Hua ◽  
Shasha Wang ◽  
Bing Xiong ◽  
...  

Author(s):  
Jikang Li ◽  
Qin Yang ◽  
Sheng Chen ◽  
Kerry McPhedran ◽  
Yingchun Gu ◽  
...  

Abstract: Herein, we designed and fabricated a hierarchically porous crosslinked polymeric microbead (PCP) with high density of functional groups for selective adsorption of cationic dyes from water. On account of...


2022 ◽  
Vol 307 ◽  
pp. 131022
Author(s):  
Zelun Li ◽  
Xiaotong Zhao ◽  
Xuekun Hong ◽  
Hujiang Yang ◽  
Dongyu Fang ◽  
...  

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