Gamma Irradiation of Cellulose Acetate-Polyethylene Glycol 400 Composite Membrane and Its Performance Test for Gas Separation

2021 ◽  
Vol 12 (6) ◽  
pp. 1198
Author(s):  
Arifina Febriasari ◽  
Meri Suhartini ◽  
Ade L. Yunus ◽  
Rahmawati Rahmawati ◽  
Sudirman Sudirman ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Gamma Irradiation ◽  
Cellulose Acetate ◽  
Gas Separation ◽  
Composite Membrane ◽  
Performance Test ◽  
Polyethylene Glycol 400

Development, Evaluation and Optimization of Osmotic Controlled Tablets of Aceclofenac for Rheumatoid Arthritis Management

2019 ◽  
Vol 9 (1) ◽  
pp. 29-36
Author(s):  
Bijaya Ghosh ◽  
Niraj Mishra ◽  
Preeta Bose ◽  
Moumita D. Kirtania
Keyword(s):  
Rheumatoid Arthritis ◽  
Polyethylene Glycol ◽  
Sodium Chloride ◽  
Cellulose Acetate ◽  
Hydroxypropyl Methylcellulose ◽  
Release Profile ◽  
Polyethylene Glycol 400 ◽  
Permeable Membrane ◽  
Cumulative Release ◽  
The Core

Objective: Rheumatoid arthritis is a dreaded disease, characterized by pain, inflammation and stiffness of joints, leading to severe immobility problems. The disease shows circadian variation and usually gets aggravated in early morning hours. Aceclofenac, a BCS Class II compound is routinely used in the treatment of pain and inflammation associated with rheumatoid arthritis. The objective of this study was to develop an osmotic delivery system of Aceclofenac that after administration at bedtime would deliver the drug in the morning hours. </P><P> Methods: A series of osmotically controlled systems of aceclofenac was developed by using lactose, sodium chloride and hydroxypropyl methylcellulose K100M as osmogens. Cellulose acetate (2% w/v in acetone) with varying concentrations of polyethylene glycol-400 was used as the coating polymer to create semi permeable membrane and dissolution was carried out in 290 mOsm phosphate buffer. Formulation optimization was done from four considerations: cumulative release at the end of 6 hours (lag time), cumulative release at the end of 7 hours (burst time), steady state release rate and completeness of drug release. </P><P> Results: A formulation having swelling polymer hydroxypropyl methylcellulose in the core and lactose and sodium chloride as osmogens, polyethylene glycol-400 (16.39 %) as pore former, with a coating weight of 5% was a close fit to the target release profile and was chosen as the optimum formulation. Conclusion: Aceclofenac tablets containing lactose, HPMC and sodium chloride in the core, given a coating of cellulose acetate and PEG-400 (5% wt gain), generated a release profile for optimum management of rheumatoid arthritic pain.

Fabrication of tethered carbon nanotubes in cellulose acetate/polyethylene glycol-400 composite membranes for reverse osmosis

2015 ◽  
Vol 132 ◽  
pp. 589-597 ◽  
Author(s):  
Aneela Sabir ◽  
Muhammad Shafiq ◽  
Atif Islam ◽  
Afsheen Sarwar ◽  
Muhammad Rizwan Dilshad ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polyethylene Glycol ◽  
Cellulose Acetate ◽  
Reverse Osmosis ◽  
Composite Membranes ◽  
Polyethylene Glycol 400

Investigation of cellulose acetate/gamma‐cyclodextrin MOF based mixed matrix membranes for CO 2 /CH 4 gas separation

2021 ◽  
Vol 11 (2) ◽  
pp. 313-330
Author(s):  
Ovaid Mehmood ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Mohammad Younas ◽  
Zarrar Salahuddin ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Gamma Cyclodextrin ◽  
Matrix Membranes

Short fiber/polyurethane composite membrane for gas separation

2017 ◽  
Vol 543 ◽  
pp. 40-48 ◽  
Author(s):  
Mohammad Bagher Karimi ◽  
Shadi Hassanajili
Keyword(s):  
Gas Separation ◽  
Composite Membrane ◽  
Short Fiber ◽  
Polyurethane Composite

Eco-friendly polyethylene glycol-400: a rapid and efficient recyclable reaction medium for the synthesis of thiazole derivatives

2010 ◽  
Vol 3 (3) ◽  
pp. 205-208 ◽  
Author(s):  
Bhaskar S. Dawane ◽  
Baseer M. Shaikh ◽  
Namdev T. Khandare ◽  
Vinod T. Kamble ◽  
Santosh S. Chobe ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Reaction Medium ◽  
Thiazole Derivatives ◽  
Polyethylene Glycol 400
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