A Novel Photosensitive Polyimide Resist Consisting of a Soluble Polyimide and a Bis(perfluorophenyl Azide) as a Cross-Linker

1993 ◽  
Author(s):  
Sui X. Cai ◽  
M. N. Wybourne ◽  
John F. Keana
Keyword(s):  
Soluble Polyimide ◽  
Cross Linker ◽  
Perfluorophenyl Azide

Evaluation of bis (perfluorophenyl azide)s as cross-linkers for a soluble polyimide

1996 ◽  
Vol 6 (8) ◽  
pp. 1249 ◽  
Author(s):  
Mingdi Yan ◽  
Sui Xiong Cai ◽  
M. N. Wybourne ◽  
John F. W. Keana
Keyword(s):  
Soluble Polyimide ◽  
Perfluorophenyl Azide

Reducing the Risk in Controlled Drug Release by Using Tannic Acid in Liposomal Formulations

2018 ◽  
Vol 68 (12) ◽  
pp. 2925-2918
Author(s):  
Gabriela Cioca ◽  
Maricel Agop ◽  
Marcel Popa ◽  
Simona Bungau ◽  
Irina Butuc
Keyword(s):  
Drug Release ◽  
Tannic Acid ◽  
Release Rate ◽  
Controlled Drug Release ◽  
Toxicity Threshold ◽  
Release System ◽  
Liposomal Formulations ◽  
Cross Linker ◽  
Natural Cross

One of the main challenges in designing a release system is the possibility to control the release rate in order to maintain it at a constant value below a defined limit, to avoid exceeding the toxicity threshold. We propose a method of overcoming this difficulty by introducing the drug into liposomes, prior to its inclusion in the hydrogel. Furthermore, a natural cross linker (as is tannic acid) is used, instead of the toxic cross linkers commonly used, thus reducing the toxicity of the release system as a whole.

scholarly journals Tannic-Acid-Cross-Linked and TiO2-Nanoparticle-Reinforced Chitosan-Based Nanocomposite Film

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 228
Author(s):  
Swarup Roy ◽  
Lindong Zhai ◽  
Hyun Chan Kim ◽  
Duc Hoa Pham ◽  
Hussein Alrobei ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tannic Acid ◽  
Nanocomposite Film ◽  
Food Packaging ◽  
Titanium Dioxide Nanoparticles ◽  
Casting Technique ◽  
Active Food Packaging ◽  
Reinforcing Agent ◽  
Solution Casting Technique ◽  
Cross Linker

A chitosan-based nanocomposite film with tannic acid (TA) as a cross-linker and titanium dioxide nanoparticles (TiO2) as a reinforcing agent was developed with a solution casting technique. TA and TiO2 are biocompatible with chitosan, and this paper studied the synergistic effect of the cross-linker and the reinforcing agent. The addition of TA enhanced the ultraviolet blocking and mechanical properties of the chitosan-based nanocomposite film. The reinforcement of TiO2 in chitosan/TA further improved the nanocomposite film’s mechanical properties compared to the neat chitosan or chitosan/TA film. The thermal stability of the chitosan-based nanocomposite film was slightly enhanced, whereas the swelling ratio decreased. Interestingly, its water vapor barrier property was also significantly increased. The developed chitosan-based nanocomposite film showed potent antioxidant activity, and it is promising for active food packaging.

Wound Closure in the Invasive Green AlgaCaulerpa taxifolia by Enzymatic Activation of a Protein Cross-Linker

2005 ◽  
Vol 44 (18) ◽  
pp. 2806-2808 ◽  
Author(s):  
Sven Adolph ◽  
Verena Jung ◽  
Janine Rattke ◽  
Georg Pohnert
Keyword(s):  
Wound Closure ◽  
Enzymatic Activation ◽  
Cross Linker
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