2021
DOI: 10.1002/adfm.202009118
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Demonstration of Environmentally Stable, Broadband Energy Dissipation via Multiple Metal Cross‐Linked Glycerol Gels

Abstract: Rapid damping of interfaces experiencing vibrations is critical to the performance of many complex mechanical systems ranging from airplanes to human bodies. Current synthetic materials utilized in vibration damping are limited by either their damping frequency range, tunability, or environmental stability. Here, it is shown how single metal ion cross‐linked hydrogels exhibit tunable damping across a large frequency range and multiple metal ion hydrogels exhibit broadband damping within a single material. Addi… Show more

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Cited by 21 publications
(18 citation statements)
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“…Such factors greatly limit or prevent practical applications of ICGs. [12,13] Hence, non-aqueous liquid phases or hygroscopic salts with strong water binding capacity, such as ionic liquids (ILs), [14,15] deep eutectic solvents, [10,16] some organic, protic solvents (dimethyl sulfoxide [17] and glycerol [18] ), and inorganic salts (CaCl 2 [19] and LiCl [20] ), have been commonly incorporated into the gels to improve their environmental stability. Among these, ILs have proven to be most suitable in fabricating ICGs (generally referred as ionogels) given their low flammability, low volatility and inherit ionic conductivity.…”
Section: Introductionmentioning
confidence: 99%
“…Such factors greatly limit or prevent practical applications of ICGs. [12,13] Hence, non-aqueous liquid phases or hygroscopic salts with strong water binding capacity, such as ionic liquids (ILs), [14,15] deep eutectic solvents, [10,16] some organic, protic solvents (dimethyl sulfoxide [17] and glycerol [18] ), and inorganic salts (CaCl 2 [19] and LiCl [20] ), have been commonly incorporated into the gels to improve their environmental stability. Among these, ILs have proven to be most suitable in fabricating ICGs (generally referred as ionogels) given their low flammability, low volatility and inherit ionic conductivity.…”
Section: Introductionmentioning
confidence: 99%
“…A nature-inspired metal-ligand pair that received a particularly high interest in synthetic soft materials is the catechol-ferric ion pair. This chelator-ion pair has been used in self-healing hydrogels, [26][27][28][29][30] or to render densely packed microgels electrically conductive. [31] In addition, catechol-functionalized surfactants have been used to stabilize 100 µm diameter emulsions.…”
mentioning
confidence: 99%
“…4,10 Recent studies have incorporated coordination bonds in materials to engineer strength, self-healing, and energy absorbing properties. [11][12][13][14] Despite these significant advances, both an understanding of the mechanical role of metal ions in metal-rich proteins and an extrapolation beyond biological proteins into synthetic materials is missing. This is in large part due to the smaller number of resolved structures of proteins with several metal ion binding sites, 15 unlike the well-known structural resolution for hydrogen-bonded alpha helixes or beta-sheets.…”
Section: Introductionmentioning
confidence: 99%