Salt-responsive polyzwitterionic materials for surface regeneration between switchable fouling and antifouling properties

Chen, Hong; Yang, Jintao; Xiao, Shengwei; Hu, Rundong; Bhaway, Sarang M.; Vogt, Bryan D.; Zhang, Mingzhen; Chen, Qiang; Ma, Jing; Chang, Yung; Li, Lingyan; Zheng, Jie

doi:10.1016/j.actbio.2016.03.009

Cited by 79 publications

(55 citation statements)

References 42 publications

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“…It should be also noted that the difference between the CAs before and after washing can be caused by the presence of NaCl salt on the LDPE surface after dipping in polymer solution containing 0.1 M NaCl. NaCl can increase hydrophilicity of the surface and thus after washing and removing of NaCl, the surface can become less hydrophilic …”

Section: Resultsmentioning

confidence: 99%

Photochemical grafting of polysulfobetaine onto polyethylene and polystyrene surfaces and investigation of long‐term stability of the polysulfobetaine layer in seawater

Mosnáček

Osička

Popelka

et al. 2018

Polymers for Advanced Techs

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Low‐density polyethylene (LDPE) and polystyrene (PS) films with hydrophilic surface were prepared by photochemical grafting of sulfobetaine‐based copolymer containing photolabile moiety, and long‐term stability of the hydrophilic nature of the surfaces in seawater was proved. The sulfobetaine‐based copolymer was prepared by copolymerization of N,N‐dimethyl‐N‐(3‐(methacryloylamino)propyl)‐N‐(3‐sulfopropyl) ammonium betaine with 2 or 5 mol% of N‐methacryloyl‐4‐azidoaniline, and the resulted polymers were grafted onto the plasma pretreated LDPE and PS films. The contact angle measurements were used to prove the modification as well as to follow the changes in the hydrophilicity during storage at room temperature under air atmosphere as well as in seawater at 32°C. The stability of the polymer layer was confirmed also by FTIR and AFM. Polysulfobetaine‐modified LDPE and PS surfaces exhibited significantly higher long‐term hydrophilicity compared with only plasma treated LDPE and PS surfaces.

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Section: Resultsmentioning

confidence: 99%

Photochemical grafting of polysulfobetaine onto polyethylene and polystyrene surfaces and investigation of long‐term stability of the polysulfobetaine layer in seawater

Mosnáček

Osička

Popelka

et al. 2018

Polymers for Advanced Techs

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“…The hydrophobic imidazole moiety not only avoids hydrolysis but also confers unique, ionic‐strength‐dependent swelling properties to the PVBIPS brush films. At high ionic strengths, surface‐grafted PVBIPS chains adopt a more extended chain conformation and are more resistant to nonspecific protein adsorption . The ionic‐strength‐dependent fouling properties make these polymer brush films very interesting for the reversible surface capture and release of proteins …”

Section: Nonfouling Polyelectrolyte Brushesmentioning

confidence: 95%

“…More recently, an interesting and less‐explored zwitterionic monomer, 3‐(1‐(4‐vinylbenzyl)‐1 H ‐imidazol‐3‐ium‐3‐yl)propane‐1‐sulfonate (VBIPS), was investigated for the production of polymer brush films by SI‐ATRP by Zheng and co‐workers (Figure ) . The hydrophobic imidazole moiety not only avoids hydrolysis but also confers unique, ionic‐strength‐dependent swelling properties to the PVBIPS brush films.…”

Section: Nonfouling Polyelectrolyte Brushesmentioning

confidence: 99%

“…More recently,a ni nteresting and less-explored zwitterionic monomer,3 -(1-(4-vinylbenzyl)-1H-imidazol-3-ium-3-yl)propane-1-sulfonate (VBIPS), was investigated for the production of polymer brush films by SI-ATRP by Zheng and co-workers ( Figure 8). [18,58] The hydrophobic imidazole moiety not only avoids hydrolysis but also confers unique, ionic-strength-dependents welling properties to the PVBIPS brush films. At high ionic strengths, surface-grafted PVBIPS chains adopt amore ex-tended chain conformation and are more resistantt on onspecific protein adsorption.…”

Section: Nonfouling Polyelectrolyte Brushesmentioning

confidence: 99%

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Structure and Functionality of Polyelectrolyte Brushes: A Surface Force Perspective

Billing

Ruths

et al. 2018

Chemistry An Asian Journal

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The unique functionality of polyelectrolyte brushes depends on several types of specific interactions, including solvent structure effects, hydrophobic forces, electrostatic interactions, and specific ion interactions. Subtle variations in the solution environment can lead to conformational and surface structural changes of the polyelectrolyte brushes, which are mainly discussed from a surface-interaction perspective in this Focus Review. A brief overview is given of recent theoretical and experimental progress in the structure of polyelectrolyte brushes in various environments. Two important techniques for surface-force measurements are described, the surface forces apparatus (SFA) and atomic force microscopy (AFM), and some recent results on polyelectrolyte brushes are shown. Lastly, this Focus Review highlights the use of these surface-grafted polyelectrolyte brushes in the creation of functional surfaces for various applications, including nonfouling surfaces, boundary lubricants, and stimuli-responsive surfaces.

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“…In one example, the Yang group developed polyzwitterionic brushes with imidazolium and sulfonate components (polyVBIPS) that were anti-fouling at high ionic strengths and adhesive at low ionic strengths. [42] With this “anti-polyelectrolyte effect,” the presence of salt disrupts the inter/intra-chain electrostatic interactions of the polymer brushes in the collapsed conformation to yield a more extended (and inert) state. In another example, the Jiang lab employed a zwitterionic polymer brush containing a tertiary amine and carboxylic acid groups and could cycle between charge-neutral states that are cell adhesive (pH 4–8) and charged states that promote adhesion (pH < 4 or pH > 8).…”

Section: Introductionmentioning

confidence: 99%

Dynamic substrates for cell biology

Bugga

Mrksich

2018

Current Opinion in Colloid & Interface Science

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The interactions of adherent cells with their insoluble extracellular matrices are complex and challenging to study in the laboratory. Approaches from interface science have been important to preparing models of the biological matrix wherein discreet ligands are immobilized and interact with cellular receptors. A recent theme has been to develop dynamic substrates, where the activities of immobilized ligands can be modulated in real-time during cell culture. This short opinion reviews the strategies to manipulate ligand activity, highlights recent work that has advanced the field and discusses the applications that have been enabled. This work suggests that dynamic substrates will continue to find important uses in basic and applied biointerfaces.

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Salt-responsive polyzwitterionic materials for surface regeneration between switchable fouling and antifouling properties

Cited by 79 publications

References 42 publications

Photochemical grafting of polysulfobetaine onto polyethylene and polystyrene surfaces and investigation of long‐term stability of the polysulfobetaine layer in seawater

Photochemical grafting of polysulfobetaine onto polyethylene and polystyrene surfaces and investigation of long‐term stability of the polysulfobetaine layer in seawater

Structure and Functionality of Polyelectrolyte Brushes: A Surface Force Perspective

Dynamic substrates for cell biology

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