Polydopamine coated shape memory polymer: enabling light triggered shape recovery, light controlled shape reprogramming and surface functionalization

Li, Zhen; Zhang, Xiaoyong; Wang, Shiqi; Yang, Yang; Qin, Benye; Wang, Ke; Xie, Tao; Wei, Yen; Ji, Yan

doi:10.1039/c6sc00584e

Cited by 133 publications

(103 citation statements)

References 41 publications

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“…[29] To investigate whether the lattice contraction that occurs when 1 is transformed to 1A is able to produce am easurable macroscopic change,along single crystal of 1 (0.11 0.13 2.62 mm) was irradiated with UV light and the physical appearance of the crystal was moni- Figure 2a and in the Supporting Information, Movie S1. Further irradiation experiments revealed that the generation of the right-handed helix morphology was independent of the direction of the light source.T he rapid and substantial change in the crystal shape (808 8 s À1 )i sattributed to the lattice contraction of 6.1 %upon irradiation and is in contrast to photoresponsive shapememory polymer-based actuators [30] that exhibit as lower mechanical response upon irradiation. Thec rystal then rapidly twisted into the right-hand helical shape within 15 seconds as the photoreaction involving the dimerization of coordinated 3-F-spy ligands transforms the 2D structure of 1 to the interpenetrating 3D structure of 1A.N oticeably,t he crystal retained its helical morphology when the light is switched off (Supporting Information, Figure S14).…”

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confidence: 99%

Fabrication of Photoactuators: Macroscopic Photomechanical Responses of Metal–Organic Frameworks to Irradiation by UV Light

et al. 2019

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Photoreactive olefinic species are incorporated into am etal-organic framework (MOF), [Zn(bdc)(3-F-spy)] (1). Single crystals of 1 are shown to undergo three types of photomechanical macroscopic deformation upon illumination by UV light. To demonstrate the practical potential of this system, the inclusion of 1 in aP VA (polyvinyl alcohol) composite membrane,b ye xploiting hydrogen-bonding interactions,i sp resented. Using this composite membrane,t he amplification of mechanical stress to achieve macroscopic actuation behavior is demonstrated. These results pave the way for the generation of MOF-based soft photoactuators that produce clearly defined mechanical responses upon irradiation with light. Such systems are anticipated to have considerable potential in photomechanical energy harvesting and conversion systems.Actuation materials that effectively convert external controllable stimuli into mechanical energy have recently attracted attention in the fields of soft robotics, [1] biomedicine, [2] biomimetic systems, [3] and molecular machines, [4] with synthetic materials having the potential to undergo intended deformations involving twisting,b ending,s wimming,a nd elongation/contraction. [5] Va rious types of smart actuation driven by external physical or chemical stimuli (for example, heat, [6] electricity, [7] magnetism, [8] humidity, [9] or light [10] )have been extensively investigated and developed. Thedesign and fabrication of as mart actuation that can achieve multiple desired deformations and perform target functions are essential prerequisites. [4,11] Accordingly,t he manipulation and deformation of actuation associated with rapid and precise response is of great relevance to both fundamental research and practical applications toward the prompt and Supportinginformation and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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confidence: 99%

Fabrication of Photoactuators: Macroscopic Photomechanical Responses of Metal–Organic Frameworks to Irradiation by UV Light

et al. 2019

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“…[ 25 ] Up to date, the PDA polymer material has been applied in various research fields due to its versatility and programmability. [ 26–29 ] Interestingly, it was found that the PDA nanospheres and coatings can act as effective photothermal materials showing strong absorption at NIR region with high photostability, [ 30,31 ] which makes the PDA polymer a promising candidate in multiple applications like photothermal therapeutic agent for cancer therapy, [ 30,32 ] fabrication of the programmable shape‐memory materials, [ 31,33 ] and shape‐morphing of liquid metals. [ 34 ] Based on the versatile PDA coating, herein, a NIR‐responsive polymeric oscillator was judiciously designed and fabricated by selectively depositing a PDA layer on the splay‐aligned LCN films.…”

Section: Figurementioning

confidence: 99%

“…Through the thickness of the film, the director of the liquid crystals gradually changes from planar to homotropic. The PDA‐coated LCN film was obtained by immersing blank film into the aqueous solution containing dopamine hydrochloride and Tris base for 24 h. [ 31,35,36 ] After PDA treatment, the appearance of the LCN film became black from transparent. The X‐ray photoelectron spectroscopy (XPS) illustrates the increase of N element on the surface when the blank LCN film was coated by PDA layer (Figure S2, Supporting Information).…”

Section: Figurementioning

confidence: 99%

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Near‐Infrared Photodriven Self‐Sustained Oscillation of Liquid‐Crystalline Network Film with Predesignated Polydopamine Coating

et al. 2020

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Movement is one of the vital features of living systems, and remote control of bioinspired soft robotic systems in a precise, contactless and harmless way is extremely desirable but challenging. A near‐infrared (NIR) photodriven polymeric oscillator is designed and fabricated by selectively coating a mussel‐inspired polydopamine (PDA) polymer layer on the surface of splay‐aligned liquid crystalline network (LCN) film. The oscillating motions of the LCN oscillators can be facilely manipulated by tuning light intensity and film thickness. More importantly, the programmability of the PDA coating enables the oscillating behaviors of LCN film to be predesignated and finely adjusted by coating the film with PDA locally and repeatedly. The self‐oscillating movement mechanism can be attributed to the temperature oscillation at the PDA‐coated LCN film since it is alternatively exposed and sheltered to the NIR‐light irradiations. Owing to over 50% NIR irradiation in solar spectrum, PDA‐coated film is found to oscillate upon exposure of focused sunlight, presenting great potential in fabrication of solar power generation devices. This provides a versatile strategy to fabricate NIR‐light‐actuated polymeric oscillators, providing inspirations in the development of biological soft robots and advanced biomimetic devices.

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“…Zhen et al. reported a polydopamine coated shape memory polymer which enable the light triggered shape recovery, light controlled shape reprogramming and surface functionalization of polymers . Ji et al.…”

Section: Introductionmentioning

confidence: 99%

Polydopamine Particle‐Filled Shape‐Memory Polyurethane Composites with Fast Near‐Infrared Light Responsibility

Yang

Tong²,

Wang

et al. 2018

ChemPhysChem

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A new kind of fast near-infrared (NIR) light-responsive shape-memory polymer composites was prepared by introducing polydopamine particles (PDAPs) into commercial shape-memory polyurethane (SMPU). The toughness and strength of the polydopamine-particle-filled polyurethane composites (SMPU-PDAPs) were significantly enhanced with the addition of PDAPs due to the strong interface interaction between PDAPs and polyurethane segments. Owing to the outstanding photothermal effect of PDAPs, the composites exhibit a rapid light-responsive shape-memory process in 60 s with a PDAPs content of 0.01 wt%. Due to the excellent dispersion and convenient preparation method, PDAPs have great potential to be used as high-efficiency and environmentally friendly fillers to obtain novel photoactive functional polymer composites.

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Polydopamine coated shape memory polymer: enabling light triggered shape recovery, light controlled shape reprogramming and surface functionalization

Abstract: Simple dip-coating transforms thermally responsive shape memory polymers into photo-responsive materials and allows for shape engineering and surface functionalization.

Cited by 133 publications

References 41 publications

Fabrication of Photoactuators: Macroscopic Photomechanical Responses of Metal–Organic Frameworks to Irradiation by UV Light

Fabrication of Photoactuators: Macroscopic Photomechanical Responses of Metal–Organic Frameworks to Irradiation by UV Light

Near‐Infrared Photodriven Self‐Sustained Oscillation of Liquid‐Crystalline Network Film with Predesignated Polydopamine Coating

Polydopamine Particle‐Filled Shape‐Memory Polyurethane Composites with Fast Near‐Infrared Light Responsibility

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