Cited by 120
Beihang University
Publishes on Supercapacitor Materials and Fabrication, Perovskite Materials and Applications, Advancements in Battery Materials. 66 papers and 1.3k citations.
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A multidimensional micro CuCo2O4/nano NiMoO4 architecture is prepared on Ni foam by the hydrothermal method. The structure consists of urchinlike CuCo2O4 microspheres covered by ultrathin NiMoO4 nanosheets. The synergistic effect depends on the diversity of space and composition. The one-dimensional CuCo2O4 nanoneedles enhance the charge transport and carry the two-dimensional NiMoO4 nanosheets. The nanosheets can expose abundant active sites and act as an armor to alleviate the volume change and maintain the structural integrity during long-term cycling. The three-dimensional skeleton integrates the intrinsic properties and external spatial effect of each component. The corresponding supercapacitor exhibits a high specific capacity of 276 mAh g–1 at 1 A g–1, good rate capability, and excellent cycling stability of 98.3% over 8000 cycles. The concept of integrating the multidimensionality and multicomponent provides a universal approach to develop high-performance materials.
Reprogramming of somatic cells into inducible pluripotent stem cells (iPSCs) provides an alternative to using embryonic stem cells (ESCs). Mesenchymal stem cells derived from human hair follicles (hHF-MSCs) are easily accessible, reproducible by direct plucking of human hairs. Whether these hHF-MSCs can be reprogrammed has not been previously reported. Here we report the generation of iPSCs from hHF-MSCs obtained by plucking several hairs. hHF-MSCs were isolated from hair follicle tissues and their mesenchymal nature confirmed by detecting cell surface antigens and multilineage differentiation potential towards adipocytes and osteoblasts. They were then reprogrammed into iPSCs by lentiviral transduction with Oct4, Sox2, c-Myc and Klf4. hHF-MSC-derived iPSCs appeared indistinguishable from human embryonic stem cells (hESCs) in colony morphology, expression of alkaline phosphotase, and expression of specific hESCs surface markers, SSEA-3, SSEA-4, Tra-1-60, Tra-1-81, Nanog, Oct4, E-Cadherin and endogenous pluripotent genes. When injected into immunocompromised mice, hHF-MSC-derived iPSCs formed teratomas containing representatives of all three germ layers. This is the first study to report reprogramming of hHF-MSCs into iPSCs.