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Yixiang Duan
Sichuan University
Analytical chemistryChemistrySpectroscopyLaser-induced breakdown spectroscopyPlasma
163Publications
24H-index
1,711Citations
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Publications 166
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Abstract Rapid and accurate identification of multiple types of rocks using spectroscopic techniques has a wide market application prospect and is always challenging due to similar chemical composition and complex matrix effects. In recent years, laser induced breakdown spectroscopy (LIBS) coupled with supervised machine learning and chemometrics methods (e.g. k-nearest neighbor (kNN), support vector machine (SVM), partial least squares (PLS), artificial neural network (ANN)) and combined with f...
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#1Zewei Luo (Sichuan University)H-Index: 6
#2Ya Xu (Sichuan University)H-Index: 2
Last. Yixiang Duan (Sichuan University)H-Index: 24
view all 8 authors...
Abstract The cancer diagnosis with single level of biomarkers suffers from limitation of insufficient accuracy. Hence, developing sensitive, rapid and adaptative analytical strategies for double-level biomarkers are essential for improving the accuracy of clinical cancer diagnosis at early stage. Herein, a DNA biosensor was established based on the catalytic hairpin assembly-mediated Y-junction nicking enzyme assisted signal amplification (CHA-YNEASA) circuits, where the two circuits were concat...
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#1L. M. Shao (CAS: Chinese Academy of Sciences)H-Index: 9
#2Guofa Xu (CAS: Chinese Academy of Sciences)H-Index: 48
Last. T.F. Zhou (CAS: Chinese Academy of Sciences)
view all 14 authors...
Abstract H-modes induced by sawtooth events can be often observed in discharges with marginal auxiliary power injection in EAST. Poloidal flow shear at the very plasma edge, increasing ∼25% up to the threshold value, is observed just before the L-H transition by means of a fast reciprocating probe array in EAST. This suddenly risen poloidal flow shear, caused by the increased turbulent driven Reynolds force, is motived by the heat pulse originally released by a sawtooth crash at the plasma core....
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#2Jianxiong Dai (Northwest University (United States))
Last. Yixiang DuanH-Index: 24
view all 6 authors...
Ambient desorption/ionization (ADI) sources coupled to mass spectrometer have gained increasing interest in the field of analytical chemistry for its fast and direct analysis of samples. Among many ADI sources, plasma-based ADI sources are an important branch. Despite its extensive use in mass spectrometry analysis, the ionization mechanism of these sources still remain uncertain. The study on ionization mechanism is of great significance to optimize the design of ion sources and to improve ioni...
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#1Zhongjun ZhaoH-Index: 9
#2Jianxiong Dai (Northwest University (United States))
Last. Yixiang Duan (Sichuan University)H-Index: 24
view all 6 authors...
Abstract Proton transfer reaction mass spectrometry (PTR-MS) is a revolutionary on-line VOCs monitoring method. In this study, a new microwave plasma-based proton transfer reaction mass spectrometry (MWP-PTR-MS) is developed. The MWP consists of a surfatron type resonator and a cooperative ion extraction device to achieve high efficiency production of hydronium ions. Non-local thermodynamic equilibrium water plasma is generated in a quartz tube at 200 Pa with 2.45 GHz microwave. Characters of MW...
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#1Jing Li (CAS: Chinese Academy of Sciences)H-Index: 40
#2Jing Wang (CAS: Chinese Academy of Sciences)H-Index: 14
Last. Yixiang Duan (CAS: Chinese Academy of Sciences)H-Index: 24
view all 8 authors...
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#1Hongyan Wei (Sichuan University)
#2Zhao Zhao (Sichuan University)H-Index: 1
Last. Yixiang Duan (Sichuan University)H-Index: 24
view all 6 authors...
DNA nanostructure-based drug delivery system (DDS) has become an advanced therapeutic strategy for cancer because of its unsurpassed editability, intrinsic biodegradability, and tunable multifunctionality. An intelligent DNA nanosystem integrating targeting, immunostimulation, and chemotherapy was constructed based on unmethylated cytosine-phosphate-guanine oligonucleotides (CpG ODNs) DNA nanohydrogels (CpG-MUC1-hydrogel). By facile one-step self-assembly, the cross-shaped DNAs (C-DNAs) assemble...
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#1H. Lan (CAS: Chinese Academy of Sciences)H-Index: 2
#2Rende Chen (CAS: Chinese Academy of Sciences)H-Index: 7
Last. T. F. Zhou (CAS: Chinese Academy of Sciences)
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Correlations between the edge fluctuations and the pedestal evolution during the relatively large edge localized mode (ELM) cycles at high pedestal normalized electron collisionality ( ν e , ped * > 1) on the EAST tokamak are investigated. Not only the edge electrostatic coherent mode (ECM, ∼50 kHz) and the low frequency magnetic coherent mode (MCM, ∼32 kHz) but also a high frequency electromagnetic mode (HFM, >150 kHz) are observed to be coexisting between ELMs. After the ELM crash, the pedesta...
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#1Zhongjun ZhaoH-Index: 9
Last. Yixiang Duan (Sichuan University)H-Index: 24
view all 7 authors...
Abstract Although plasma based ambient desorption/ionization (ADI) sources have been widely used for direct analysis of complex samples, mass spectrometric imaging, high throughput screening etc., the ionization mechanism of plasma-based ADI remains a mystery by now. In this report, a targeted study was conducted aiming at a better understanding of the ionization processes of plasma-based ambient desorption ionization source. As a representative of ambient desorption ionization source, an FAPA s...
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#1Jing Chen (Sichuan University)H-Index: 1
#2Zewei Luo (Sichuan University)H-Index: 6
Last. Yongxin Li (Sichuan University)H-Index: 6
view all 8 authors...
Abstract With the continuous development of DNA nanotechnology, researchers have focused increasing attention on the use of DNA molecules with diverse structural and functional properties to construct nanomachines. Among the various molecular machines, DNA walker is one of the most sophisticated DNA devices either in design or construction. Its key point is to drive the walking strand to move steadily and progressively along the tracks by the motor, and further to implement the generation and am...
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