Bioinspired dopamine and zwitterionic polymers for non-fouling surface engineering

Asha, Anika Benozir; Chen, Yangjun; Narain, Ravin

doi:10.1039/d1cs00658d

Cited by 161 publications

(85 citation statements)

References 110 publications

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“…[ 40 ] Later, the electrodes were treated by MPC solution, leading to the conjugation between the amine groups of PDA and acrylate zwitterionic MPC molecules via Michael addition. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

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An Anti‐Biofouling Flexible Fiber Biofuel Cell Working in the Brain

et al. 2022

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Biofuel cell (BFC) that transfers chemical energy into electricity is a promising candidate as an energy‐harvesting device for implantable electronics. However, there still remain major challenges for implantable BFCs, including bulky and rigid device structure mismatching with soft tissues such as the brain, and the power output decreases due to the fouling process in a biological environment. Here, a flexible and anti‐biofouling fiber BFC working in the brain chronically is developed. The fiber BFC is based on a carbon nanotube fiber electrode to possess small size and flexibility. A hydrophilic zwitterionic anti‐biofouling polydopamine‐2‐methacryloyloxyethyl phosphorylcholine layer is designed on the surface of fiber BFC to resist the nonspecific protein adsorption in a complex biological environment. After implantation, the fiber BFC can achieve a stable device/tissue interface, along with a negligible immune response. The fiber BFC has first realized power generation in the mouse brain for over a month, exhibiting its promising prospect as an energy‐harvesting device in vivo.

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“…[ 40 ] Later, the electrodes were treated by MPC solution, leading to the conjugation between the amine groups of PDA and acrylate zwitterionic MPC molecules via Michael addition. [ 41 ]…”

Section: Resultsmentioning

confidence: 99%

“…[40] Later, the electrodes were treated by MPC solution, leading to the conjugation between the amine groups of PDA and acrylate zwitterionic MPC molecules via Michael addition. [41] d,e) SEM images of fiber bioanode at low and high magnifications, respectively. Scale bar, d) 30 µm; e) 1 µm.…”

Section: Resultsmentioning

confidence: 99%

An Anti‐Biofouling Flexible Fiber Biofuel Cell Working in the Brain

et al. 2022

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“…The adhesion photographs and adhesion strength of the hydrogels on other substrates were shown in Figures 5Bi-iii,C, respectively. This adhesion was attributed to the high polarity of the zwitterionic polymer in hydrogel (Asha et al, 2021;Yu and Wu, 2021). Both charged groups (cationic quaternary ammonium and anionic sulfonate) and polar groups (S=O) tend to interact with other charged or polar groups on the surface of most substrates via ion dipole and/ or dipole-dipole interactions, resulting in a strong interfacial bonding (Kim et al, 2021).…”

Section: Mechanical Properties Of the Hydrogelsmentioning

confidence: 99%

Highly Transparent, Self-Healing, and Self-Adhesive Double Network Hydrogel for Wearable Sensors

Chen

Liu

Wang

et al. 2022

Front. Bioeng. Biotechnol.

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Hydrogel-based flexible electronic devices are essential in future healthcare and biomedical applications, such as human motion monitoring, advanced diagnostics, physiotherapy, etc. As a satisfactory flexible electronic material, the hydrogel should be conductive, ductile, self-healing, and adhesive. Herein, we demonstrated a unique design of mechanically resilient and conductive hydrogel with double network structure. The Ca2+ crosslinked alginate as the first dense network and the ionic pair crosslinked polyzwitterion as the second loose network. With the synthetic effect of these two networks, this hydrogel showed excellent mechanical properties, such as superior stretchability (1,375%) and high toughness (0.57 MJ/m3). At the same time, the abundant ionic groups of the polyzwitterion network endowed our hydrogel with excellent conductivity (0.25 S/m). Moreover, due to the dynamic property of these two networks, our hydrogel also performed good self-healing performance. Besides, our experimental results indicated that this hydrogel also had high optical transmittance (92.2%) and adhesive characteristics. Based on these outstanding properties, we further explored the utilization of this hydrogel as a flexible wearable strain sensor. The data strongly proved its enduring accuracy and sensitivity to detect human motions, including large joint flexion (such as finger, elbow, and knee), foot planter pressure measurement, and local muscle movement (such as eyebrow and mouth). Therefore, we believed that this hydrogel had great potential applications in wearable health monitoring, intelligent robot, human-machine interface, and other related fields.

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“…n-Butyl cinnamate: 1 (E)-1,2-diphenylethene 1 H NMR (400 MHz, CDCl 3 ) δ 7.53 (d, J = 7.5 Hz, 4H), 7.37 (t, J = 7.6 Hz, 4H), 7.26 (d, J = 3.7 Hz, 2H), 7.12 (s, 2H).…”

Section: General Procedures For Heck Reactionmentioning

confidence: 99%

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

Luo

Xie

Zheng

et al. 2022

J of Applied Polymer Sci

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Polydopamine has been considered as the adhesive of mussels to solid surfaces in biological systems. The development of dopamine and polydopamine functionalized nanofibrous materials is highly desirable for catalysis, drug delivery and tissue engineering. Polydopamine induced surface functionalized solid matrices have been proved to be efficient supporting materials for palladium nanoparticles. In this study, the dopamine monomers were first incorporated into the Pd2+/chlorated poly(vinyl chloride) (CPVC) composite nanofibers by electrospinning and then polymerized in basic and reductive solution at elevated temperature to prepare stable polydopamine functionalized CPVC supported palladium composite nanofibers. Scanning electron microscopy images show that uniform and smooth nanofibers with diameter of ~325 nm have been prepared and high temperature can promote their solvent resistance. Fourier transformed infrared and UV–visible (UV–Vis) spectra confirmed the synthesis of polydopamine inside the composite nanofibers. The ultrafine palladium nanoparticles inside the composite nanofibers were characterized by X‐ray spectroscopy and transmission electron microscopy. Although these palladium nanoparticles were confined inside the nanofibers, they exhibited excellent catalytic efficiency for the Heck reactions of aryl iodides with alkenes. Moreover, this novel fibrous catalyst could be easily recovered by simple filtration and reused at least five times without obviously loss of initial catalytic activity. In all, we have developed a distinctive way for the synthesis of polydopamine functionalized polymeric materials for catalysis and other applications.

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Bioinspired dopamine and zwitterionic polymers for non-fouling surface engineering

Abstract: Conjugation of zwitterionic polymer with dopamine is a promising approach to endow the surface with antifouling properties for medical devices, biosensors and marine coating applications etc. Zwitterionic polymers can be conjugated with dopamine by mostly four methods.

Cited by 161 publications

References 110 publications

An Anti‐Biofouling Flexible Fiber Biofuel Cell Working in the Brain

An Anti‐Biofouling Flexible Fiber Biofuel Cell Working in the Brain

Highly Transparent, Self-Healing, and Self-Adhesive Double Network Hydrogel for Wearable Sensors

Ultrafine palladium nanoparticles confined in polydopamine functionalized chlorinated poly(vinyl chloride) nanofibers for Heck reaction

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