Hydrogels: Hydrogel Paint (Adv. Mater. 39/2019)

Yao, Xiao-Qiang; Liu, Junjie; Yang, Canhui; Yang, Xuxu; Wei, Jichang; Xia, Yin; Gong, Xiao-Yan; Suo, Zhigang

doi:10.1002/adma.201970276

Cited by 12 publications

(15 citation statements)

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“…TMSPMA has recently been explored for achieving tough adhesion between hydrogels and various materials. 5,24,25,27,33 We make a 6 mm hydrophilic island on PDMS, add the hydrogel precursor, and subject the sample to an UV lamp (UVP XX-15L, 15 W, 365 nm) for 3 min. After curing, the silane coupling agents add cross-links to the PAAm network and interlink the network to the substrate (Figure S4).…”

Section: Resultsmentioning

confidence: 99%

“…The integration of elastomers and hydrogels is becoming increasingly important and has enabled many emerging cutting-edge applications in ionotronics, 1 soft machines, 2 and soft robotics. 3 Examples include hydraulic actuator, 4 lubricous and antifouling coating, 5 mechanochromic optical communicator, 6 soft energy generator, 7 artificial muscle, 8 skin 9 and axon, 10 artificial eel, 11 ionotronic luminescence, 12−14 stick-on sensor, 15 stretchable textile display, 16 transparent touchpad, 17 stretchable diode, 18 and ionic spiderweb. 19 These elastomer− hydrogel hybrid systems require that elastomers and hydrogels be stretchable and sometimes transparent.…”

Section: Introductionmentioning

confidence: 99%

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Biomimetic Hydrophilic Islands for Integrating Elastomers and Hydrogels of Regulable Curved Profiles

Zhang

Xiao

et al. 2020

ACS Appl. Electron. Mater.

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Recent advances in integrating elastomers and hydrogels have enabled numerous emerging and promising applications in ionotronics, soft machines, and soft robotics. A challenge has emerged to integrate elastomers and hydrogels of intricate configurations in various manufacturing processes. Here, a biomimetic strategy is reported to enable the integration of elastomers and hydrogels with regulable curved profiles. To do so, hydrophilic islands are imparted on the hydrophobic surface of an elastomer to allow the regulation of the profiles of the precursor, which can be cured into a hydrogel with high degree of fidelity of the profile and robust adhesion between the hydrogel and the elastomer. Parametric investigations pertaining to the diameter of the hydrophilic island and the volume of the liquid are first carried out to construct the designing space, which is then applied to a hydrogel precursor. An ionotronic luminescent array that can selectively light up in response to various extents of compression is fabricated. A soft tunable lens whose focal length can be mediated by the profile and mechanical stretch is also demonstrated. The proposed approach paves avenues for integrated elastomer–hydrogel hybrid systems.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biomimetic Hydrophilic Islands for Integrating Elastomers and Hydrogels of Regulable Curved Profiles

Zhang

Xiao

et al. 2020

ACS Appl. Electron. Mater.

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“…Hydrogels with dual conductivity have been under development for a number of years 65,66 . Recently, elastic moduli in the range of soft tissues (1–100 kPa), stretchability exceeding 100% and overall conductivity of up to ~50 S/cm have been achieved in various systems 67–72 . Typically, the electronically conductive material is a CP or a network of metallic or carbon nanoparticles 73,74 .…”

Section: Interfaces From Bioinspired Materialsmentioning

confidence: 99%

Electronic tissue technologies for seamless biointerfaces

Minev

2023

Journal of Polymer Science

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Bioelectronic interfaces establish a communication channel between a living system and an electrical machine. The first examples emerged in the 18th century when batteries were used to “galvanize” muscles and nerves. Today bioelectronic interfaces underpin key medical technologies such as the cardiac pacemaker and emerging ones such as neuroprostheses and brain‐machine interfaces. Despite compelling applications in living systems, bioelectronic interfaces employ materials from microelectronics that are rigid, impermeable to water and bioinert. In contrast, electrical phenomena in soft tissues such as muscle and nerve are mediated by ions and molecules solvated in water. This disparity leads to missed opportunities for achieving seamless interfaces and communication that extends beyond electrical stimulation and recording. In this perspective, I discuss opportunities presented by hydrogel materials for building bioelectronic interfaces. This will require new types of hydrogels that support both ionic and electronic conductivity combined with key functions of the extracellular matrix.

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“…The p-type delayed fluorescence originated from the triplet-triplet annihilation (TTA) process can convert two triplet excitons into one singlet exciton when there is a large energy gap (ΔE ST ) between the lowest excited singlet (S 1 ) and triplet (T 1 ) states (2T 1 > S 1 ), which results in theoretical 62.5% internal quantum efficiency (IQE). [19][20][21][22][23][24][25] Thereupon, merging CPL and DF into a luminescent compound is of great significance in the design of nextgeneration emitters for optoelectronic applications. As one of the typical luminous materials, carbonized polymer dots (CPDs) are obtained through controllable polymerization or crosslinking, self-assembly, physical immobilization or hydrothermal treatment.…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Luminescent Behavior of Delayed Fluorescence Liquid Crystals Based on Carbonized Polymer Dots

Luo,

Guan,

Huang

et al. 2023

Advanced Optical Materials

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Circularly polarized luminescence (CPL) as modern photonic technology is essential for optical apparatuses, anti‐counterfeiting, and information encryption. However, it still faces the formidable challenge of integrating delayed fluorescence into CPL through harvesting the triplet excitons. Herein, a carbonized polymer dot liquid crystal (CPDs‐Chol) is reported that shows both circularly polarized fluorescence (CPF) and circularly polarized delayed fluorescence (CP‐DF). In order to realize the CP‐DF, a kind of CPDs‐Chol is successfully designed and synthesized through grafting cholesterol molecules on the surface of novel carbonized polymer dots (CPDs) possessing long afterglow of 13 s. Then, the resultant CPDs‐Chol is doped with 4‐cyano‐4‐pentylbiphenyl (5CB) in different ratios to fabricate CPL material, which shows the highest glum of −0.5 and −0.042 for CPF and CP‐DF, respectively. The combination of the CPL feature and the long afterglow of CPDs‐Chol@5CB and CPDs offer an attractive photonic technology with advanced applications in anti‐counterfeiting and information encryption.

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Hydrogels: Hydrogel Paint (Adv. Mater. 39/2019)

Cited by 12 publications

References 0 publications

Biomimetic Hydrophilic Islands for Integrating Elastomers and Hydrogels of Regulable Curved Profiles

Biomimetic Hydrophilic Islands for Integrating Elastomers and Hydrogels of Regulable Curved Profiles

Electronic tissue technologies for seamless biointerfaces

Circularly Polarized Luminescent Behavior of Delayed Fluorescence Liquid Crystals Based on Carbonized Polymer Dots

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