In vitrobiological evaluation of electrospun cellulose acetate fiber mats containing asiaticoside or curcumin

2010 ◽  
Vol 9999A ◽  
pp. NA-NA ◽  
Author(s):  
Orawan Suwantong ◽  
Uracha Ruktanonchai ◽  
Pitt Supaphol
Keyword(s):  
Cellulose Acetate ◽  
Fiber Mats ◽  
Cellulose Acetate Fiber

Release characteristics of four model drugs from drug-loaded electrospun cellulose acetate fiber mats

Polymer ◽  
2007 ◽  
Vol 48 (17) ◽  
pp. 5030-5041 ◽  
Author(s):  
Santi Tungprapa ◽  
Ittipol Jangchud ◽  
Pitt Supaphol
Keyword(s):  
Cellulose Acetate ◽  
Fiber Mats ◽  
Cellulose Acetate Fiber

Electrospun cellulose acetate fiber mats containing curcumin and release characteristic of the herbal substance

Polymer ◽  
2007 ◽  
Vol 48 (26) ◽  
pp. 7546-7557 ◽  
Author(s):  
Orawan Suwantong ◽  
Praneet Opanasopit ◽  
Uracha Ruktanonchai ◽  
Pitt Supaphol
Keyword(s):  
Cellulose Acetate ◽  
Fiber Mats ◽  
Cellulose Acetate Fiber ◽  
Release Characteristic

Electrospun Cellulose Acetate Fiber Containing Rubber Extract

2015 ◽  
Vol 1119 ◽  
pp. 329-333 ◽  
Author(s):  
Natthakitta Suwannateep ◽  
Chidchanok Meechaisue ◽  
Hubert Ruch
Keyword(s):  
Cellulose Acetate ◽  
High Surface ◽  
Potential Candidate ◽  
High Porosity ◽  
Fiber Mats ◽  
New Approach ◽  
Surface Areas ◽  
Innovative Products ◽  
Cellulose Acetate Fiber ◽  
First Time

Recent studies on cream of rubber extract (HB) have significantly showed skin improvement results, however, there were color and odor issues. To solve the problems, we successfully produced ultra-fine cellulose acetate (CA) fiber mats (electrospun fibers) containing 1-5 wt% extracts of rubber from Hevea brasilensis without any chemical additions. This new approach has in fact revealed the desired material and biomolecule immobilization. The SEM photographs show the straight and even shaping of the processed HB-CA fibers. The average fiber diameters of the HB-CA fibers ranged between 415 and 585 nm. Moreover, HB-CA solutions containing 1-3% HB extract resulted in a more consistent texture of the fiber mats. This was the first time to produce nanofibers using only rubber extract and cellulose acetate without any other potentially bioactive components involved. This innovation did not only solve the initially addressed color and odor issues, but also provided a new purified material of very small fibers which allows better control of its bioactivity due to the fact that less chemical substances are involved. Its highly interesting characteristics, such as high surface areas to mass ratio, high porosity et al make this result an excellent potential candidate e.g. facial masks, and other innovative products in the field of cosmetics and pharmaceutical industry. Further research is needed and highly promising.

scholarly journals 2,6-Dichloro-4-nitroaniline –loaded Electrospun Cellulose Acetate Fiber Mats and Their Release Characteristics

2011 ◽  
Vol 10 (2) ◽  
pp. 40 ◽  
Author(s):  
Patcharaporn Thitiwongsawet ◽  
Paweena Ouykul ◽  
Akkarin Khaoroppan
Keyword(s):  
Weight Loss ◽  
Cellulose Acetate ◽  
Water Retention ◽  
Spectroscopic Method ◽  
Immersion Method ◽  
Fiber Mats ◽  
Cast Films ◽  
1H Nuclear Magnetic Resonance ◽  
Total Immersion ◽  
Cellulose Acetate Fiber

Mats of cellulose acetate (CA) nanofibers containing 2,6-dichloro-4-nitroaniline (DCNA) were successfully fabricated by electrospinning from the neat CA solution (17% w/v in 2:1 acetone/dimethylacetamide) containing DCNA in various amounts (i.e. 5-15 wt. % based on the weight of CA). The morphological appearance of both the neat and the DCNA-loaded electrospun CA fibers were smooth and the incorporation of DCNA in the neat CA solution did not affect the morphology of the resulting fibers. The average diameters of the neat and the DCNA-loaded electrospun CA fibers ranged between 241-320 nm. The integrity of the as-loaded DCNA in the DCNA-loaded CA fiber mats was intact as verified by the 1H-nuclear magnetic resonance spectroscopic method. The amount of water retention, the amount of weight loss, and release characteristics of the DCNA-loaded CA fiber mats and the DCNA-loaded as-cast films in distilled water at 30°C were studied. The release characteristics were investigated by the total immersion method. The DCNA-loaded CA fiber mats exhibited greater amount of water retention, weight loss, and DCNA released than the DCNA-loaded as-cast films.

scholarly journals Estimating the Dielectric Constant of Cellulose Acetate Fiber Aggregation with Its Components Volume Fraction

2017 ◽  
Vol 12 (3) ◽  
pp. 155892501701200 ◽  
Author(s):  
Hanming Lv ◽  
Xiaoye Wang ◽  
Chongqi Ma ◽  
Li Ma
Keyword(s):  
Dielectric Constant ◽  
Cellulose Acetate ◽  
Linear Correlation ◽  
Volume Fraction ◽  
Measurement Data ◽  
Test System ◽  
Dielectric Spectrum ◽  
Oiling Agent ◽  
Cellulose Acetate Fiber ◽  
Bds Test

For the sake of studying the relationship between dielectric constant (ε) of cellulose acetate fiber aggregation and volume fraction of its compositions (including cellulose acetate fibers, water and oiling agent), the dielectric spectrum of the aggregation was measured in two forms with a Broadband Dielectric Spectrum (BDS) test system- dry cellulose acetate fibers (dry samples) and oiled cellulose acetate fibers (oiled samples). The measurement data show that dielectric constant has a linear correlation with the volume fraction of cellulose acetate fibers and the oiling agent in the aggregation, and has a non-linear correlation with the volume fraction of water in the aggregation. A function between dielectric constant of the cellulose acetate fiber aggregation and volume fraction of the components was fitted with 1stOpt. The function is in close proximity to the measured data.

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