Effect of Fiber Alignment on Optical Properties of Cellulose Nanocrystal Films

2014 ◽  
Author(s):  
Edward A. Le ◽  
Wei-Chih Wang ◽  
Chao Shih Liu ◽  
Chih-Wei Wang
Keyword(s):  
Optical Properties ◽  
Cellulose Nanocrystal ◽  
Fiber Alignment ◽  
Nanocrystal Films

scholarly journals Cellulose nanocrystal-based liquid crystal structures and the unique optical characteristics of cellulose nanocrystal films

BioResources ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. 2116-2137
Author(s):  
Xiaoyao Wei ◽  
Tao Lin ◽  
Min Duan ◽  
Hengli Du ◽  
Xuefeng Yin
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Aqueous Suspension ◽  
Cellulose Nanocrystal ◽  
Cholesteric Phase ◽  
Left Handed ◽  
Nanocrystal Films ◽  
Biological World ◽  
Optical Applications ◽  
The Relationship

Liquid crystals (LC) have been found to have many unique characteristics during the last few decades. The liquid crystal phase is ubiquitous in the biological world, as well as in cellulose and its derivatives. Cellulose nanocrystals (CNC), which can obtain the chiral LC phase in aqueous suspension, have been attracting much attention. The unique size and properties of CNC, such as their light weight, special optical properties, non-toxicity, and biocompatibility, etc., have made them widely applicable in diverse fields. This brief literature review introduces the relationship between the LC phase and CNC. Advantages of CNC as a liquid crystal forming material and the preparation of CNC are discussed. The left-handed cholesteric phase structure and the corresponding unique optical properties of CNC-based LC are described in detail. The CNC-based LC aqueous suspension and three stages of forming LC phase are also described. Then, the main reasons accounting for the brittleness and non-uniformity of pristine CNC-based LC are summarized, as well as ways to overcome these problems. Finally, some optical applications of CNC-based LC films in anti-counterfeiting, colorimetric sensors, and composite devices are considered.

Biomimetic Optical Cellulose Nanocrystal Films with Controllable Iridescent Color and Environmental Stimuli-Responsive Chromism

2018 ◽  
Vol 10 (6) ◽  
pp. 5805-5811 ◽  
Author(s):  
Yao-Dong He ◽  
Ze-Lian Zhang ◽  
Juan Xue ◽  
Xiao-Hui Wang ◽  
Fei Song ◽  
...  
Keyword(s):  
Cellulose Nanocrystal ◽  
Stimuli Responsive ◽  
Environmental Stimuli ◽  
Nanocrystal Films

Solid-state 23Na NMR spectroscopy studies of ordered and disordered cellulose nanocrystal films

2019 ◽  
Vol 97 ◽  
pp. 31-39 ◽  
Author(s):  
Ryutaro Ohashi ◽  
Carl A. Michal ◽  
Wadood Y. Hamad ◽  
Thanh-Dinh Nguyen ◽  
Motohiro Mizuno ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Cellulose Nanocrystal ◽  
Nanocrystal Films ◽  
Spectroscopy Studies ◽  
23Na Nmr

Microelectromechanical Systems from Aligned Cellulose Nanocrystal Films

2018 ◽  
Vol 10 (28) ◽  
pp. 24116-24123 ◽  
Author(s):  
Partha Saha ◽  
Naveed Ansari ◽  
Christopher L. Kitchens ◽  
W. Robert Ashurst ◽  
Virginia A. Davis
Keyword(s):  
Microelectromechanical Systems ◽  
Cellulose Nanocrystal ◽  
Nanocrystal Films

scholarly journals Iridescent cellulose nanocrystal films: the link between structural colour and Bragg’s law

2018 ◽  
Vol 39 (4) ◽  
pp. 045803 ◽  
Author(s):  
Thanh-Dinh Nguyen ◽  
Egoitz Sierra ◽  
Harkaitz Eguiraun ◽  
Erlantz Lizundia
Keyword(s):  
Cellulose Nanocrystal ◽  
Structural Colour ◽  
Nanocrystal Films
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