Yu Lei

ORCID: 0000-0003-0795-4758
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About
Contact & Profiles
Research Areas
  • Hydrogels: synthesis, properties, applications
  • Advanced Sensor and Energy Harvesting Materials
  • Graphene research and applications
  • Pluripotent Stem Cells Research
  • CRISPR and Genetic Engineering
  • Luminescence Properties of Advanced Materials
  • Crystal Structures and Properties
  • Bone Tissue Engineering Materials
  • Polymer Nanocomposite Synthesis and Irradiation
  • Solid State Laser Technologies
  • Genetics, Aging, and Longevity in Model Organisms
  • Graphene and Nanomaterials Applications
  • Silk-based biomaterials and applications

Shanxi University
2021

Beijing Institute of Technology
2011-2018

The development of hydrogels combining superior mechanical property attracts researchers' attention in recent years. Here, a novel nanocomposite hydrogel is prepared by one‐step photo‐polymerization acrylic acid (AA) and N,N‐dimethylacrylamide (DMAA) the presence hydroxyapatite nanoparticles (HAp NPs) aluminum hydroxide (Al(OH) 3 NPs). resulting transparent exhibits ultrahigh toughness 28.3 MJ m −3 , high strength 2.8 MPa, large elongation 1300%, excellent self‐recovery good...

10.1002/pc.24765 article EN Polymer Composites 2018-02-05

Efficient up and down frequency conversions in Tm(3+) Ho(3+) doped LaOF tetragonal nanocrystals have been investigated. Bright fluorescence emissions are obtained co-doped Tm(3+)/Ho(3+):LaOF through UV infrared excitation. Green florescence from ions, which can be clearly seen with bared eyes, is when ion excited. Specific mechanism of the cross relaxation between ions explored spectroscopic measurements time domains. About 90% energy transfer efficiency weak radiative nonradiative...

10.1166/jnn.2010.2787 article EN Journal of Nanoscience and Nanotechnology 2010-10-09

A novel graphene oxide-polyvinyl alcohol/poly (N-isopropylacrylamide) hydrogel (GO-PVA/PNIPA hydrogel) with temperature sensitivity is prepared through in situ free-radical polymerization and freezing–thawing cyclic process. In this study, mechanical property sensitive of GO-PVA/PNIPA are investigated. The results show that the strength hydrogels enhanced increasing content GO also keeps good sensitivity. Graphene oxide acting as a multi-functional crosslinker between PVA PNIPA responsible...

10.1088/1757-899x/274/1/012115 article EN IOP Conference Series Materials Science and Engineering 2017-12-01
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