Tunable dual-band terahertz metalens based on stacked graphene metasurfaces Original Research Article Optics Communications, Volume 429, 15 December 2018, Pages 41-45 Zhiping Yin, Qun Zheng, Kuiyuan Wang, Kai Guo, Fei Shen, Hongping Zhou, Yongxuan Sun, Qingfeng Zhou, Jun Gao, Linbao Luo, Zhongyi Guo | 3D interlayer nanohybrids composed of reduced graphenescheme oxide/SnO2/PPy grown from expanded graphite for the detection of ultra-trace Cd2+, Cu2+, Hg2+ and Pb2+ ions Original Research Article Sensors and Actuators B: Chemical, Volume 274, 20 November 2018, Pages 285-295 Afrasiab Ur Rehman, Muhammad Ikram, Kan Kan, Yiming Zhao, Wei Jun Zhang, Jiawei Zhang, Yang Liu, Yang Wang, Lijuan Du, Keying Shi
Graphical abstractThe 3D interlayer rGO/SnO2/PPy nanohybrid is a promising material which possesses the advantages of conducting material PPy, active site SnO2 grains and outstanding electrical substrate the graphene-like nanosheet of (rGO obtained from EG). The lowest detectable Cd2+, Cu2+, Hg2+ and Pb2+ concentration of the rGO/SnO2/PPy modified electrode reaches 7.5 × 10−13, 8.3 × 10−13, 8.1 × 10−13 and 8.8 × 10−13M.

| Smartphone-based integrated voltammetry system for simultaneous detection of ascorbic acid, dopamine, and uric acid with graphene and gold nanoparticles modified screen-printed electrodes Original Research Article Biosensors and Bioelectronics, Volume 119, 15 November 2018, Pages 55-62 Daizong Ji, Zixiang Liu, Lei Liu, Sze Shin Low, Yanli Lu, Xiongjie Yu, Long Zhu, Candong Li, Qingjun Liu | In–situ hybridization of polyaniline nanofibers on functionalized reduced graphene oxide films for high-performance supercapacitor Original Research Article Electrochimica Acta, Volume 285, 20 September 2018, Pages 221-229 Kai Jin, Weijie Zhang, Yixuan Wang, Xinli Guo, Zhongtao Chen, Long Li, Yao Zhang, Zengmei Wang, Jian Chen, Litao Sun, Tong Zhang
Graphical abstractA facile process for the hybridization of polyaniline nanofibers (PANI NFs) on functionalized reduced graphene oxide (FrGO) films by filtering the hybrid suspension of graphene oxide (GO) and in-situ polymerized PANI NFs followed by hydrothermal treatment to reduce GO and sulfur functionalization of rGO to construct a porous structure.Image 1
 | Nitrogen and sulfur co-doped graphene quantum dots for the highly sensitive and selective detection of mercury ion in living cells Original Research Article Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, Available online 2 August 2018, Pages Chaojie Qu, Duobao Zhang, Ran Yang, Jingyu Hu, Lingbo Qu
Graphical AbstractA novel nitrogen and sulfur co-doped graphene quantum dots (N,S/GQDs) were synthesized by a simple and green pyrolysis method with citric acid as carbon source, d‑penicillamine as doped molecule. The fluorescence of the obtained N,S/GQDs could be dramatically and selectively quenched by Hg2+ due to the coordination between them. Based on such a recognition effect, a very sensitive and selective fluorescence sensor for the imaging mercury ions in the living cells was developed.Unlabelled Image
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