Particle-reinforced and functionalized hydrogels for SpineMan, a soft robotics application

Preller, Tobias; Runge, Gundula; Zellmer, Sabrina; Menzel, D.; Saein, Saeid Azimi; Peters, Jan; Raatz, Annika; Tiersch, Brigitte; Koetz, Joachim; Garnweitner, Georg

doi:10.1007/s10853-018-3106-6

Cited by 13 publications

(9 citation statements)

References 42 publications

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“…As a result, cryo-SEM is highly suitable for imaging hydrated soft matter. 15,23,34 Figure The B50 hydrogels again show a pore-like structure. It is more homogeneous than in the B10 materials, with reasonably uniform voids roughly in the 2 μm range.…”

Section: ■ Introductionmentioning

confidence: 92%

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

et al. 2021

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Hydrogels with a hierarchical structure were prepared from a new highly water-soluble crosslinker N,N,N′,N′-tetramethyl-N,N′-bis(2-ethylmethacrylate)-propyl-1,3-diammonium dibromide and from the sulfobetaine monomer 2-(N-3-sulfopropyl-N,Ndimethyl ammonium)ethyl methacrylate. The free radical polymerization of the two compounds is rapid and yields near-transparent hydrogels with sizes up to 5 cm in diameter. Rheology shows a clear correlation between the monomer-to-crosslinker ratio and the storage and loss moduli of the hydrogels. Cryo-scanning electron microscopy, low-field nuclear magnetic resonance (NMR) spectroscopy, and small-angle X-ray scattering show that the gels have a hierarchical structure with features spanning the nanometer to the sub-millimeter scale. The NMR study is challenged by the marked inhomogeneity of the gels and the complex chemical structure of the sulfobetaine monomer. NMR spectroscopy shows how these complications can be addressed via a novel fitting approach that considers the mobility gradient along the side chain of methacrylate-based monomers.

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Section: ■ Introductionmentioning

confidence: 92%

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

et al. 2021

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“…Numerous researches have been conducted on self-mending materials, especially polymeric and elastomeric materials, which can undergo self-mending via a broad range of routes and methods. 100 However, the majority of emerging soft robotic devices are fabricated from polymeric or elastomeric materials. Although research into soft robotics is an emerging area generally, self-mending and deformation recovery systems are starting to be included into three major support groups, which are enhancing the future of soft robotics for structures, actuators, and sensors.…”

Section: Self-healing In Polymer Composite Electronicsmentioning

confidence: 99%

“…93 –96 Self-mending hydrogels have established as a specialist area of research as revealed in recent articles. 97 –102…”

Section: Self-healing In Polymer Composite Electronicsmentioning

confidence: 99%

Novel trends in self-healable polymer nanocomposites

Idumah

2019

Journal of Thermoplastic Composite Materials

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Polymer composites for structural applications are prone to damage emanating from cracks which are formed within the material, where detection is not easy and repairing almost not feasible. Material cracking results in mechanical deterioration of polymer composites for microelectronic components, which can result in electrical failure. Microcracking occurring as a result of thermally and mechanically induced fatigue is challenging for effective polymer performance. Self-healing composites are materials exhibiting capability of automatically recovering when damaged. They derive their inspiration through biological systems similar to the human skin, which exhibit a natural tendency to undergo healing by themselves. Stretchability is a factor enabling electronic devices to properly align to irregular 3-D structures, such as soft and movable parts. Stretchable electronics offers materials with the ability to conform to soft and nonplanar composites while enabling movement of biological tissues. Therefore, this article elucidates very recently emerging advancements on self-healing composites, stretchable composites, and sensors. Future market disposition and application of self-healing composites are also presented.

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“…As is well known, nanoparticles are able to employ as 2D and polymorphous inorganic cross‐linking agents to fabricate high strength NC hydrogels through the strong interaction such as electrostatic or hydrogen bonding interaction. As an important class of nanomaterial, SiO 2 nanoparticles have been attracting tremendous scientific interest due to its intrinsic high modulus, uniform structure on the nanoscale, versatile functionalization, noncytotoxicity, and good chemical stability . Moreover, the SiO 2 nanoparticles possess a hydrophilic character and have large specific surface area, which promote strong non‐covalent interaction and efficient stress transfer between the SiO 2 nanoparticles and the hydrophilic polymer chains .…”

Section: Introductionmentioning

confidence: 99%

High‐Strength, Rapidly Self‐Recoverable, and Antifatigue Nano‐SiO₂/Poly(Acrylamide–Lauryl Methacrylate) Composite Hydrogels

Pan

Meng

Fang

et al. 2019

Macro Materials & Eng

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/mame.201900130. Composite HydrogelsCreating load-bearing hydrogels with superior mechanical strength and toughness is of vital importance for promoting the development of polymer hydrogels toward practical applications. Herein, a type of composite hydrogel is facilely fabricated employing simple and effective UV irradiation one-pot method by introducing cheap and available nanosilica sol into hydrophobic association poly(acrylamide-lauryl methacrylate) (HAPAM gels). Composite hydrogels exhibit enhanced mechanical strength (compression stress reaching 4.4 MPa) and toughness (compression hysteresis energy achieved is 151.15 kJ m −3 ) compared to HAPAM gels. Composite hydrogels also demonstrate rapid self-recovery behavior (95.91% stress recovery and 92.19% hysteresis energy recovery after restoration for 15 min, respectively) and favorable fatigue-resistant ability without the help of external stimuli at room temperature based on the cyclic loading-unloading compression measurements. The simple and effective design strategy may help the development of hydrogel materials toward practical applications for soft sensors, tissue engineering, and actuators.The authors declare no conflict of interest. Keywordscomposite hydrogels, fatigue-resistant ability, hydrophobic association poly(acrylamide-lauryl methacrylate), nanosilica sol, rapid self-recovery behavior

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Particle-reinforced and functionalized hydrogels for SpineMan, a soft robotics application

Cited by 13 publications

References 42 publications

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

Novel trends in self-healable polymer nanocomposites

High‐Strength, Rapidly Self‐Recoverable, and Antifatigue Nano‐SiO₂/Poly(Acrylamide–Lauryl Methacrylate) Composite Hydrogels

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Particle-reinforced and functionalized hydrogels for SpineMan, a soft robotics application

Cited by 13 publications

References 42 publications

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

Sulfobetaine Hydrogels with a Complex Multilength-Scale Hierarchical Structure

Novel trends in self-healable polymer nanocomposites

High‐Strength, Rapidly Self‐Recoverable, and Antifatigue Nano‐SiO2/Poly(Acrylamide–Lauryl Methacrylate) Composite Hydrogels

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Product

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High‐Strength, Rapidly Self‐Recoverable, and Antifatigue Nano‐SiO₂/Poly(Acrylamide–Lauryl Methacrylate) Composite Hydrogels