Ultralight, highly thermally insulating and fire resistant aerogel by encapsulating cellulose nanofibers with two-dimensional MoS2

Nanoscale ◽  
2017 ◽  
Vol 9 (32) ◽  
pp. 11452-11462 ◽  
Author(s):  
Lei Yang ◽  
Alolika Mukhopadhyay ◽  
Yucong Jiao ◽  
Qiang Yong ◽  
Liao Chen ◽  
...  

Thermally insulating materials, made from earth-abundant and sustainable resources, are highly desirable in the sustainable construction of energy efficient buildings.

2020 ◽  
Vol 28 ◽  
Author(s):  
Qi Yuan ◽  
Jing Bian ◽  
Ming-Guo Ma

Background: Recently, there has been increasing interest in nanomaterials processed using renewable and sustainable resources. Nanocellulose-based materials are of paramount value in the applications of biomedicine owing to their tailorable surface modification, favorable optical transparency, good hydrophilicity, excellent biocompatibility, and outstanding mechanical properties. Methods: In the review, the recent advancements of nanocellulose, including cellulose nanofibers (CNFs), cellulose nanocrystals (CNCs), and bacterial cellulose (BC), are summarized, which are promising for biomedical applications. Results: By discussing different forms (one-dimensional (1D), two-dimensional (2D), and three-dimensional (3D)), the superiority of the nanocellulose-based materials with different constructed structures will be clarified for various biomedical applications, such as biosensing, drug delivery, wound dressing, and tissue engineering. Conclusion: Furthermore, the challenges and prospects for future development of nanocellulose-based materials in biomedical applications are also discussed at the end in the review.


Akustika ◽  
2020 ◽  
pp. 2-7
Author(s):  
Marián Flimel

Energy-efficient buildings utilise the potential of renewable sources, among which heat pumps hold an important position. As this technology has a secondary effect on the environment through its noise immission, locations of outdoor units in the exterior should be subjected to the assessment. The present article deals with the options of placing heat pumps in the exterior and the placement assessment methods. The noise burden identification through the assessment of the time exposure is presented in the example of an in situ measurement.


2021 ◽  
pp. 100101
Author(s):  
Nikolay Aleksandrovich Tsvetkov ◽  
Aleksandr Vital'yevich Tolstykh ◽  
Andrey Nikolaevich Khutornoi ◽  
Stanislav Boldyryev ◽  
Anna Vladimirovna Kolesnikova ◽  
...  

2021 ◽  
Vol 9 (4) ◽  
pp. 105444
Author(s):  
Ilia Yarmoshenko ◽  
Georgy Malinovsky ◽  
Aleksey Vasilyev ◽  
Aleksandra Onishchenko

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