近年来，先后共主持各类科研项目5项，其中国国家自然科学基金项目1项，湖南省科技计划项目1项，省教育厅优秀青年项目1项。

在《Biosensors and Bioelectronics》、《Electrochimica Acta》、《Sensors and Actuators B: Chemical》、《Journal of Electroanalytical Chemistry》、《分析科学学报》等国内外杂志上发表论文20余篇，SCI、EI收录10余篇。

[1]国家自然科学基金，可控制备还原氧化石墨烯-咔咯纳米复合材料及电化学传感应(No.21471052);经费 80 万元，2014.09-2018.12

[2]湖南省科技计划项目, 重组酶与碳纳米管及石墨烯复合纳米材料界面的制备及传感应用(2014FJ3048);5 万元。2014.05-2015.05

[1]Keqin Deng, Chunxiang Li, Haowen Huang, Xiaofang Li, Rolling circle amplification based on signal-enhanced electrochemical DNA sensor for ultrasensitive transcription factor detection, Sensors and Actuators B: Chemical, 2017, 238, 1302–1308.

[2]KeqinDeng, XinyanLiu, ChunxiangLi, ZhaohuiHou, HaowenHuang, An electrochemical omeprazole sensor based on shortened multi-walled carbon nanotubes-Fe3O4 nanoparticles and poly(2, 6-pyridinedicarboxylic acid), Sensors and Actuators B: Chemical, 2017, 253, 1-9.

[3]Electrochemical Determination of Nitrite Using a Reduced Graphene Oxide–Multiwalled Carbon Nanotube-Modified Glassy Carbon Electrode, Analytical Letteres, 2016, 49, 2917–2930.

[4]Keqin Deng, Chunxiang Li, Xiaofang Li, Haowen Huang, Simultaneous detection of sunset yellow and tartrazine using the nanohybrid of gold nanorods decorated graphene oxide, Journal of Electroanalytical Chemistry, 2016, 780, 296–302.

[5]Keqin Deng, Xiaofang Li, Haowen Huang, A glassy carbon electrode modified with a nickel(II) norcorrole complex and carbon nanotubes for simultaneous or individual determination of ascorbic acid, dopamine, and uric acid, Microchimica Acta, 2016, 183, 2139–2145.

[6]Keqin Deng, Xiaofang Li, Haowen Huang, Synthesis of a novel triad hybrid of noncovalent-assembled nickel (II) norcorrole on graphene oxide encapsulated multiwalled carbon nanotubes and its application, Electrochimica Acta, 2016, 204, 84–91.

[7]Keqin Deng, Chunxiang Li, Xiyang Qiu, Jianhong Zhou, Zhaohui Hou, Electrochemical preparation, characterization and application of electrodes modified with nickel–cobalt hexacyanoferrate/graphene oxide–carbon nanotubes, Journal of Electroanalytical Chemistry, 2015, 755, 197–202.

[8]Keqin Deng, Chunxiang Li, Xiyang Qiu, Jianhong Zhou , Zhaohui Hou, Synthesis of Cobalt hexacyanoferrate decorated graphene oxide/carbon nanotubes-COOH hybrid and their application for sensitive detection of hydrazine, Electrochimica Acta, 2015, 174, 1096–1103.

[9]Chunxiang Li , Xiyang Qiu , Zhaohui Hou , Keqin Deng, A dumbell probe-mediated rolling circle amplification strategy for highly sensitive transcription factor detection, Biosensors and Bioelectronics, 2015, 64, 505–510.

[10]Keqin Deng , Jianhong Zhou, Xiaofang Li, Direct electrochemical reduction of graphene oxide and its application to determination of L-tryptophan and L-tyrosine, Colloids and Surfaces B: Biointerfaces, 2013, 101, 183–188.

[11]Keqin Deng , Jianhong Zhou, Xiaofang Li, Noncovalent nanohybrid of ferrocene with chemically reduced graphene oxide and its application to dual biosensor for hydrogen peroxide and choline, Electrochimica Acta, 2013, 95, 18-23.

[12]Keqin Deng, Jianhong Zhou , Xiaofang Li, Noncovalent nanohybrid of cobalt tetraphenylporphyrin with graphene for simultaneous detection of ascorbic acid,dopamine,and uric acid, Electrochimica Acta, 2013, 114, 341–346.