Cellulose acetate ultrafiltration membranes customized with bio-inspired polydopamine coating and in situ immobilization of silver nanoparticles

2019 ◽  
Vol 43 (10) ◽  
pp. 4216-4225 ◽  
Author(s):  
Meenakshi Sundaram Sri Abirami Saraswathi ◽  
Dipak Rana ◽  
Subbiah Alwarappan ◽  
Shanmugaraj Gowrishankar ◽  
Paramasivam Kanimozhi ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Surface Modification ◽  
Cellulose Acetate ◽  
In Situ Immobilization ◽  
Ultrafiltration Membranes ◽  
Schematic Representation ◽  
Cellulose Acetate Membranes

Schematic representation of the surface modification of cellulose acetate membranes with self-polymerized dopamine and in situ immobilization of AgNPs.

Silver nanoparticles supported on polyethylene glycol/cellulose acetate ultrafiltration membranes: preparation and characterization of composite

Cellulose ◽  
2017 ◽  
Vol 24 (11) ◽  
pp. 4997-5012 ◽  
Author(s):  
Jonathan Caloca ◽  
Lucía Z. Flores-López ◽  
Heriberto Espinoza-Gomez ◽  
Erika Lis Sotelo-Barrera ◽  
Alfredo Núñez-Rivera ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Polyethylene Glycol ◽  
Cellulose Acetate ◽  
Ultrafiltration Membranes

Facile fouling resistant surface modification of microfiltration cellulose acetate membranes by using amino acid l-DOPA

2013 ◽  
Vol 68 (4) ◽  
pp. 901-908 ◽  
Author(s):  
Sara Azari ◽  
Linda Zou ◽  
Emile Cornelissen ◽  
Yasushito Mukai
Keyword(s):  
Surface Modification ◽  
Amino Acid ◽  
Cellulose Acetate ◽  
Membrane Filtration ◽  
Membrane Surface ◽  
Fouling Resistance ◽  
Widespread Application ◽  
Potential Measurement ◽  
Cellulose Acetate Membranes ◽  
Microfiltration Membranes

A major obstacle in the widespread application of microfiltration membranes in the wet separation processes such as wastewater treatment is the decline of permeates flux as a result of fouling. This study reports on the surface modification of cellulose acetate (CA) microfiltration membrane with amino acid l-3,4-dihydroxy-phenylalanine (l-DOPA) to improve fouling resistance of the membrane. The membrane surface was characterised using Fourier transform infrared spectroscopy (FTIR), water contact angle and zeta potential measurement. Porosity measurement showed a slight decrease in membrane porosity due to coating. Static adsorption experiments revealed an improved resistance of the modified membranes towards the adhesion of bovine serum albumin (BSA) as the model foulant. Dead end membrane filtration tests exhibited that the fouling resistance of the modified membranes was improved. However, the effect of the modification depended on the foulant solution concentration. It is concluded that l-DOPA modification is a convenient and non-destructive approach to enable low-BSA adhesion surface modification of CA microfiltration membranes. Nevertheless, the extent of fouling resistance improvement depends on the foulant concentration.

Horseradish peroxidase-mediated in situ synthesis of silver nanoparticles: application for sensing of mercury

2018 ◽  
Vol 42 (16) ◽  
pp. 13763-13769 ◽  
Author(s):  
D. Nanda Kumar ◽  
N. Chandrasekaran ◽  
A. Mukherjee
Keyword(s):  
Silver Nanoparticles ◽  
Horseradish Peroxidase ◽  
In Situ Synthesis ◽  
Spectrophotometric Detection ◽  
Schematic Representation

Schematic representation for spectrophotometric detection of Hg2+ using an enzyme-mediated formation of silver nanoparticles.

Inhibition of bacterial adhesion on cellulose acetate membranes containing silver nanoparticles

Cellulose ◽  
2015 ◽  
Vol 22 (6) ◽  
pp. 3895-3906 ◽  
Author(s):  
Patricia Fernanda Andrade ◽  
Andreia Fonseca de Faria ◽  
Fernando Júnior Quites ◽  
Silvana Ruella Oliveira ◽  
Oswaldo Luiz Alves ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Cellulose Acetate ◽  
Bacterial Adhesion ◽  
Cellulose Acetate Membranes

A new strategy for surface modification of polysulfone membrane by in situ imprinted sol–gel method for the selective separation and screening ofl-Tyrosine as a lung cancer biomarker

The Analyst ◽  
2015 ◽  
Vol 140 (6) ◽  
pp. 1939-1946 ◽  
Author(s):  
Mohammad Mahdi Moein ◽  
Mehran Javanbakht ◽  
Mohammad Karimi ◽  
Behrouz Akbari-adergani ◽  
Mohamed Abdel-Rehim
Keyword(s):  
Lung Cancer ◽  
Surface Modification ◽  
Sol Gel ◽  
Polysulfone Membrane ◽  
Schematic Representation ◽  
Gel Method ◽  
Sol Gel Process ◽  
New Strategy ◽  
Lung Cancer Biomarker

Schematic representation of surface modification of polysulfone membrane byin situMIP sol–gel process.

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