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Biocompatible and self-healing hydrogels that mimic the functions of human skin have attracted much attention for skin-like electronics and human motion detection. Integrating high stretchability and improving sensing sensitivity are current challenges. In this study, a nanocomposite hydrogel comprised of polyacrylic acid (PAA) and reduced graphene oxide (rGO) prepared via mussel-inspired chemistry...
Hydrogels currently used in electroactive tissues (cardiac tissues, skeletal muscles, and nerves) have certain shortcomings such as a lack of electrical conductivity and adhesiveness, both of which play a key role in the success of hydrogels in biomedical applications. In this study, chitosan (CS)/graphene oxide (GO) composite hydrogels with self-adhesive and self-healing properties, as well as electrical...
Carbon based dots (CDs) have attracted broad attention exhibit due to the unique optical properties. However, the exact origins of their optical properties are still controversial. Citric acid (CA) coupled with some amino group-containing small molecules are believed to be ideal precursors for the synthesis of high luminescent CDs through various thermal treatment processes. Herein, CA coupled with...
Fe-doped SiC nanowires samples were fabricated using high-purity carbon nanotubes, SiO and Fe powders as starting materials. The surface morphology, microstructure and chemical composition of the samples were investigated by field emission scanning electron microscopy, high resolution transmission electron microscopy and X-ray photoelectron spectroscopy, respectively. The results reveal that the samples...
This study examines the dye-sensitized solar cells (DSSCs) equipped with 1-D carbon nanotubes (CNTs) and 2-D graphene nanosheets (GNs) carbon counter electrodes. Imperfect defects were attached to the sidewall or both the ends of the CNTs, and the edges of the GNs were analyzed by X-ray diffraction and Raman spectroscopy. When compared with the GN-based counter electrode, CNT-based counter electrodes...
The vertical connection of carbon nanotubes (CNTs) to silicon based on a chemical route at room temperature has been realized, using polyethylenimine (PEI) as a binding material between them. Chemical hydrogen bonding and electrostatic interaction between PEI, CNTs, and silicon effectively connect the CNTs to silicon. In this process, CNTs always keep their pristine structure and shape, so the unique...
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