Strong Surface Hydration and Salt Resistant Mechanism of a New Nonfouling Zwitterionic Polymer Based on Protein Stabilizer TMAO

2021 ◽  
Author(s):  
Hao Huang ◽  
Chengcheng Zhang ◽  
Ralph Crisci ◽  
Tieyi Lu ◽  
Hsiang-Chieh Hung ◽  
...  
Keyword(s):  
Surface Hydration ◽  
Zwitterionic Polymer ◽  
Strong Surface

Molecular simulations and understanding of antifouling zwitterionic polymer brushes

2020 ◽  
Vol 8 (17) ◽  
pp. 3814-3828 ◽  
Author(s):  
Yonglan Liu ◽  
Dong Zhang ◽  
Baiping Ren ◽  
Xiong Gong ◽  
Lijian Xu ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Molecular Simulations ◽  
Antifouling Property ◽  
Surface Hydration ◽  
Zwitterionic Polymer ◽  
Strong Surface

Zwitterionic materials demonstrate the strong surface hydration to empower their antifouling property.

In Situ Probing of the Surface Hydration of Zwitterionic Polymer Brushes: Structural and Environmental Effects

2014 ◽  
Vol 118 (29) ◽  
pp. 15840-15845 ◽  
Author(s):  
Chuan Leng ◽  
Xiaofeng Han ◽  
Qing Shao ◽  
Yongheng Zhu ◽  
Yuting Li ◽  
...  
Keyword(s):  
Environmental Effects ◽  
Polymer Brushes ◽  
Surface Hydration ◽  
Zwitterionic Polymer

Conductivity, Dielectric and Modulus study of NH4PF6 based Zwitterionic polymer electrolyte

2020 ◽  
Vol 13 ◽  
Author(s):  
Manindra Kumar ◽  
Neelabh Srivastava
Keyword(s):  
Polymer Electrolyte ◽  
Power Law ◽  
Loss Tangent ◽  
Electric Modulus ◽  
Relaxation Behavior ◽  
Conductivity Data ◽  
Frequency Range ◽  
Zwitterionic Polymer ◽  
Power Law Equation ◽  
Jonscher’S Power Law

Background and Objective: Zwitterionic polymer electrolyte has been successfully synthesized using NH4PF6 salt. The conductivity of the synthesized polymer membrane is found to be of the order of 10-3Scm-1. Dielectric and Modulus properties of the polymer electrolyte have also been studied which showed well relaxation peaks with both temperature and salt concentrations. Result: This is well depicted with the loss tangent curve. Debye type relaxation behavior has observed from the electric modulus. Conclusion: Frequency dependent conductivity data (fitted with Jonscher's power law equation) confirmed the presence of NCL/SLPL type behavior in the studied frequency range.

Effects of the Goethite Surface Hydration Microstructure on the Adsorption of the Collectors Dodecylamine and Sodium Oleate

Langmuir ◽  
2021 ◽  
Author(s):  
Hongliang Zhang ◽  
Wei Sun ◽  
Yangge Zhu ◽  
Jianyong He ◽  
Daixiong Chen ◽  
...  
Keyword(s):  
Sodium Oleate ◽  
Surface Hydration

scholarly journals P4VP Modified Zwitterionic Polymer for the Preparation of Antifouling Functionalized Surfaces

Nanomaterials ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 706 ◽  
Author(s):  
Chaoqun Wu ◽  
Yudan Zhou ◽  
Haitao Wang ◽  
Jianhua Hu
Keyword(s):  
Photoelectron Spectroscopy ◽  
Cell Attachment ◽  
Raft Polymerization ◽  
Polymer Brush ◽  
Contact Angles ◽  
Polymerization Process ◽  
Water Contact ◽  
Zwitterionic Polymers ◽  
Ito Glass ◽  
Zwitterionic Polymer

Zwitterionic polymers are suitable for replacing poly(ethylene glycol) (PEG) polymers because of their better antifouling properties, but zwitterionic polymers have poor mechanical properties, strong water absorption, and their homopolymers should not be used directly. To solve these problems, a reversible-addition fragmentation chain transfer (RAFT) polymerization process was used to prepare copolymers comprised of zwitterionic side chains that were attached to an ITO glass substrate using spin-casting. The presence of 4-vinylpyridine (4VP) and zwitterion chains on these polymer-coated ITO surfaces was confirmed using 1H NMR, FTIR, and GPC analyses, with successful surface functionalization confirmed using water contact angle, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM) studies. Changes in water contact angles and C/O ratios (XPS) analysis demonstrated that the functionalization of these polymers with β-propiolactone resulted in hydrophilic mixed 4VP/zwitterionic polymers. Protein adsorption and cell attachment assays were used to optimize the ratio of the zwitterionic component to maximize the antifouling properties of the polymer brush surface. This work demonstrated that the antifouling surface coatings could be readily prepared using a “P4VP-modified” method, that is, the functionality of P4VP to modify the prepared zwitterionic polymer. We believe these materials are likely to be useful for the preparation of biomaterials for biosensing and diagnostic applications.

Zwitterionic polymer brush grafting on anodic aluminum oxide membranes by surface-initiated atom transfer radical polymerization

2017 ◽  
Vol 8 (15) ◽  
pp. 2309-2316 ◽  
Author(s):  
Chien-Wei Chu ◽  
Yuji Higaki ◽  
Chao-Hung Cheng ◽  
Ming-Hsiang Cheng ◽  
Chun-Wei Chang ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Anodic Aluminum Oxide ◽  
Polymer Brush ◽  
Atom Transfer ◽  
Geometric Effect ◽  
Anodic Aluminum ◽  
Zwitterionic Polymer ◽  
Oxide Membranes

A feasible processing of zwitterionic polymer-grafted anodic aluminum oxide (AAO) membranes by surface-initiated atom transfer radical polymerization (SI-ATRP) and the geometric effect were investigated.

Titanium alloy modified with anti-biofouling zwitterionic polymer to facilitate formation of bio-mineral layer

2017 ◽  
Vol 152 ◽  
pp. 302-310 ◽  
Author(s):  
Miku Nishida ◽  
Tadashi Nakaji-Hirabayashi ◽  
Hiromi Kitano ◽  
Yoshiyuki Saruwatari ◽  
Kazuyoshi Matsuoka
Keyword(s):  
Titanium Alloy ◽  
Mineral Layer ◽  
Zwitterionic Polymer
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