Superhydrophilicity and strong salt-affinity: Zwitterionic polymer grafted surfaces with significant potentials particularly in biological systems

Li, Dongxiang; Wei, Qianling; Wu, Chunxing; Zhang, Xiaofang; Xue, Qihao; Zheng, Taoran; Cao, Meiwen

doi:10.1016/j.cis.2020.102141

Cited by 85 publications

(62 citation statements)

References 206 publications

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“…[ 244–247 ] Based on their antifouling properties, zwitterionic polymers are widely used in surface modifications for antifouling, antibacterial, and anticoagulant, and other biomedical fields including biomedical diagnostics, immunomodulation, drug or gene delivery, separation membranes, and marine fouling. [ 248–255 ] Various types of zwitterions have been developed in recent decades. Sulfobetaine (SB), [ 256 ] carboxybetaine (CB), [ 257 ] and phosphorylcholine [ 258–262 ] based materials are the most widely used due to their ultra‐low fouling properties, which are result of the strong hydration through ionic solvation.…”

Section: New Materials To Resist the Fbrmentioning

confidence: 99%

Dealing with the Foreign‐Body Response to Implanted Biomaterials: Strategies and Applications of New Materials

Zhang

Chen

Shi

et al. 2020

Adv Funct Materials

161

139

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Foreign‐body response caused by implanted biomaterials seriously impedes the function of implants and is a major obstacle to the development of implantable biomaterials and medical devices. Recent advances in implantable biomaterials and medical devices have provided strategies to resist the foreign‐body response. In this review, the mechanism of the foreign‐body response and conventional strategies to mitigate foreign‐body response is briefly introduced. Then, three types of promising foreign‐body response resisting materials are focused and the advantages, characteristics, and applications of each material are discussed. Finally, prospects are put forward for future development of foreign‐body response resisting materials and current challenges that require in‐depth study.

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Section: New Materials To Resist the Fbrmentioning

confidence: 99%

Dealing with the Foreign‐Body Response to Implanted Biomaterials: Strategies and Applications of New Materials

Zhang

Chen

Shi

et al. 2020

Adv Funct Materials

161

139

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show abstract

“…They are very hydrophilic because the solvation of zwitterions on the polymer chains can produce high solvent water retention and form a deeply hydrated layer around the polymer chains through anionic and cationic hydration (Leng et al, 2015). They also have strong salt affinity because the zwitterions on the polymer chains can electrostatically adsorb salt counterions in water (Li et al, 2020). So, zwitterionic polymers readily stretch in salt solution and have greater solubility in salt solution than in pure water (Mary et al, 2007), which is named as anti-polyelectrolyte behavior, i.e., "salting-in" effect (Yang et al, 2015;Xiao et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Partially Hydrolyzed Polyacrylamide With Zwitterionic Units and Poly(Ethylene Glycol) Units Toward Enhanced Tolerances to High Salinity and High Temperature

Lü

Zhao

et al. 2021

Front. Mater.

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Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their applications. Herein, copolymers including HPAM, zwitterion-modified HPAM (z-HPAM), PEG-modified HPAM (p-HPAM), and zwitterion/PEG-modified HPAM (zp-HPAM) were prepared by free radical polymerization in an aqueous solution. The viscosity of these copolymers under different temperature and salinity was measured in aqueous solution. It is found that the viscosity of the HPAM under the harsh condition (90oC, 20 × 104 mg/L salinity) is only 9.6% of that value under the normal condition (25oC, pure water), while the z-HPAM can significantly improve salt resistance by the effects of salting-in effect and intermolecular electrostatic crosslinking, showing a viscosity retention of 22.9% under the harsh condition. The addition of PEG-containing monomer can strengthen hydrogen bonding between the polymer chains and form a sterically ordered structure with improved salinity and temperature resistance. The synergistic effect of zwitterion units and PEG units endows the zp-HPAM with good salinity and temperature resistance; thus, the sample viscosity under the harsh condition remains 170 mPa s, which retains 29% of the value under the normal condition. The enhanced rheology properties of the zp-HPAM under the harsh condition are significant for the enhanced oil recovery of water-soluble polymer flooding.

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“…Among them, zwitterionic polymers are attractive materials for superhydrophilic coatings [ 11 , 12 ]. Polysulfobetaine is a type of zwitterionic polymer.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophilic Coating with Antibacterial and Oil-Repellent Properties via NaIO4-Triggered Polydopamine/Sulfobetaine Methacrylate Polymerization

et al. 2020

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Superhydrophilic coatings have been widely used for the surface modification of membranes or biomedical devices owing to their excellent antifouling properties. However, simplifying the modification processes of such materials remains challenging. In this study, we developed a simple and rapid one-step co-deposition process using an oxidant trigger to fabricate superhydrophilic surfaces based on dopamine chemistry with sulfobetaine methacrylate (SBMA). We studied the effect of different oxidants and SBMA concentrations on surface modification in detail using UV–VIS spectrophotometry, dynamic light scattering, atomic force microscopy, X-ray photoelectron spectroscopy, and surface plasmon resonance. We found that NaIO4 could trigger the rate of polymerization and the optimum ratio of dopamine to SBMA is 1:25 by weight. This makes the surface superhydrophilic (water contact angle < 10°) and antifouling. The superhydrophilic coating, when introduced to polyester membranes, showed great potential for oil/water separation. Our study provides a complete description of the simple and fast preparation of superhydrophilic coatings for surface modification based on mussel-inspired chemistry.

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Superhydrophilicity and strong salt-affinity: Zwitterionic polymer grafted surfaces with significant potentials particularly in biological systems

Cited by 85 publications

References 206 publications

Dealing with the Foreign‐Body Response to Implanted Biomaterials: Strategies and Applications of New Materials

Dealing with the Foreign‐Body Response to Implanted Biomaterials: Strategies and Applications of New Materials

Incorporation of Partially Hydrolyzed Polyacrylamide With Zwitterionic Units and Poly(Ethylene Glycol) Units Toward Enhanced Tolerances to High Salinity and High Temperature

Superhydrophilic Coating with Antibacterial and Oil-Repellent Properties via NaIO4-Triggered Polydopamine/Sulfobetaine Methacrylate Polymerization

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