Br-PADAP embedded in cellulose acetate electrospun nanofibers: Colorimetric sensor strips for visual uranyl recognition

2017 ◽  
Vol 329 ◽  
pp. 205-210 ◽  
Author(s):  
Lin Hu ◽  
Xue-Wu Yan ◽  
Qi Li ◽  
Xue-Ji Zhang ◽  
Dan Shan
Keyword(s):  
Cellulose Acetate ◽  
Electrospun Nanofibers ◽  
Colorimetric Sensor

scholarly journals Fabrication and Characterization of Electrospun Nanofibers for the Modified Release of the Chronobiotic Hormone Melatonin

2018 ◽  
Vol 16 (1) ◽  
pp. 79-85 ◽  
Author(s):  
Marilena Vlachou ◽  
Stefanos Kikionis ◽  
Angeliki Siamidi ◽  
Konstantina Tragou ◽  
Stefania Kapoti ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Electrospun Nanofibers ◽  
Release Profile ◽  
Modified Release ◽  
Gelatin Capsules ◽  
Fiber Matrices ◽  
Fabrication And Characterization ◽  
Hard Gelatin Capsules

Objective: Aiming at the modified release of melatonin (MLT), electrospun-MLT loaded nanofibers, filled into hard gelatin and DRcapsTM capsules, were used as formulants. Methods: Cellulose acetate, polyvinylpyrrolidinone and hydroxypropylmethylcellusose (HPMC 2910) were used for the preparation of the fiber matrices through electrospinning. The in vitro modified release profile of MLT from the fabricated matrices in gastrointestinal-like fluids was studied. At pH 1.2, the formulations CA1, CA2, PV1, HP1, HP2 and the composite formulations CAPV1-CAPV5 in hard gelatin capsules exhibited fast MLT release. Results: In general, the same trend was observed at pH 6.8, with the exception of CAPV1 and CAPV2. These two composite formulations delivered 52.08% and 75.25% MLT, respectively at a slower pace (6 h) when encapsulated in DRcapsTM capsules. In all other cases, the release of MLT from DRcapsTM capsules filled with the MLT-loaded nanofibers reached 100% at 6h. Conclusion: These findings suggest that the MLT-loaded nanofibrous mats developed in this study exhibit a promising profile for treating sleep dysfunctions.

Cellulose acetate electrospun nanofibers encapsulating Lemon Myrtle essential oil as active agent with potent and sustainable antimicrobial activity

2020 ◽  
Vol 157 ◽  
pp. 104769
Author(s):  
Sara Beikzadeh ◽  
Alireza Akbarinejad ◽  
Simon Swift ◽  
Janesha Perera ◽  
Paul A. Kilmartin ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Cellulose Acetate ◽  
Active Agent ◽  
Electrospun Nanofibers

Preparation and Characterization of Tetrahydrocurcumin-Loaded Cellulose Acetate Phthalate/Polyethylene Glycol Electrospun Nanofibers

2018 ◽  
Vol 19 (7) ◽  
pp. 3000-3008 ◽  
Author(s):  
Ravikumar Rramaswamy ◽  
Ganesh Mani ◽  
Senthil Venkatachalam ◽  
Ramesh Venkata Yasam ◽  
J. C. Bose Rajendran ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Cellulose Acetate ◽  
Electrospun Nanofibers ◽  
Cellulose Acetate Phthalate

Electrospun acetaminophen-loaded cellulose acetate nanofibers fabricated using an epoxy-coated spinneret

e-Polymers ◽  
2015 ◽  
Vol 15 (5) ◽  
pp. 311-315 ◽  
Author(s):  
Xia Wang ◽  
Xiao-Yan Li ◽  
Ying Li ◽  
Hua Zou ◽  
Deng Guang Yu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Cellulose Acetate ◽  
Amorphous State ◽  
Electrospun Nanofibers ◽  
Electrospinning Technique ◽  
Stainless Steel Capillary ◽  
Dissolution Tests ◽  
Model Drug ◽  
Functional Nanofibers

AbstractThis paper reports the investigation about the usage of an epoxy (EP)-coated spinneret for the preparation of medicated electrospun nanofibers. Cellulose acetate (CA) and acetaminophen (APAP) were used as the polymeric carrier and model drug, respectively. The electrospinning was undertaken using both EP-coated spinneret and traditional stainless steel capillary as spinnerets. According to the images from scanning electron microscopy, it is obvious that the nanofibers produced using the EP-coated spinneret had a finer diameter and a narrower size distribution (450±90 nm) than nanofibers fabricated using stainless steel equivalent (660±180 nm). In vitro dissolution tests revealed that the sustained-release profiles of nanofibers from the EP-coated spinneret were superior to those of their stainless steel equivalents, although APAP existed in a similar amorphous state in both nanofibers. Because the EP-coated material can exploit the electrical forces more effectively than its steel analogue, it can enhance the electrospinning technique for producing polymeric functional nanofibers.

High absorbency cellulose acetate electrospun nanofibers for feminine hygiene application

2016 ◽  
Vol 4 ◽  
pp. 62-70 ◽  
Author(s):  
Shital Yadav ◽  
Mani Pujitha Illa ◽  
Tulika Rastogi ◽  
Chandra Shekhar Sharma
Keyword(s):  
Cellulose Acetate ◽  
Electrospun Nanofibers

Cellulose Acetate Nanofibrous Membranes for Antibacterial Applications

2020 ◽  
Vol 13 (3) ◽  
pp. 181-188
Author(s):  
Zhipeng Ma ◽  
Xinghuan Lin ◽  
Xuehong Ren
Keyword(s):  
Cellulose Acetate ◽  
Light Exposure ◽  
Antimicrobial Properties ◽  
Electrospun Nanofibers ◽  
Fast Inactivation ◽  
E Coli ◽  
Uva Light ◽  
Nanofibrous Membranes ◽  
Fibrous Membranes ◽  
Surface Morphologies

Background: N-halamine antibacterial materials have been extensively explored over the past few decades due to their fast inactivation of a broad spectrum of bacterial and rechargeability. Electrospun nanofibers loaded with N-halamines have gained great attention because of their enhanced antibacterial capability induced by the larger specific surface area. The patents on electrospun nanofibers (US20080679694), (CN2015207182871) helped in the method for the preparation of nanofibers. Methods: In this study, a novel N-halamine precursor, 3-(3'-Chloro-propyl)-5,5-dimethylimidazolidine- 2,4-dione(CPDMH), was synthesized. Antimicrobial electrospun Cellulose Acetate (CA) nanofibers were fabricated through impregnating CPDMH as an antimicrobial agent into CA fibers by the bubble electrospinning. The surface morphologies of CA/CPDMH nanofibrous membranes were characterized by Scanning Electron Microscope (SEM). Results: The chlorinated fibrous membranes (CA/CPDMH-Cl) exhibited effective antimicrobial activity against 100% of S. aureus and E. coli O157:H7 within 1 min and 5 min, respectively. The CA/CPDMH-Cl nanofibrous membranes showed good storage stability under the dark and excellent durability towards UVA light exposure. Meanwhile, the release of active chlorine from the chlorinated nanofibrous membranes was stable and safe. Besides, the addition of CPDMH could improve the mechanical property, and chlorination did not obviously affect the strength and elongation of the nanofibrous membranes. Conclusion: CPDMH could endow the electrospun CA nanofibers with powerful, durable and regenerable antimicrobial properties. It will provide a continuous and effective method for health-care relative industrial application.

Bamboo cellulose-derived cellulose acetate for electrospun nanofibers: synthesis, characterization and kinetics

Cellulose ◽  
2017 ◽  
Vol 25 (1) ◽  
pp. 391-398 ◽  
Author(s):  
Jie Cai ◽  
Rui Zhou ◽  
Tiantian Li ◽  
Jingren He ◽  
Guozhen Wang ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Electrospun Nanofibers
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