Molin Qin

National Institute for Radiological Protection

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Yu Fang

Shaanxi Normal University

Shuya Cao

Xi'an International Studies University

Yong Pan

Guangzhou Electronic Technology (China)

Junchao Yang

National Institute for Radiological Protection

Taihong Liu

Shaanxi Normal University

Cancan Yan

Jinglin Kong

McGill University

Yang Liu

Zhejiang Sci-Tech University

Junchao Yang

Guangzhou Medical University

Tengxiao Guo

Institute of Hematology & Blood Diseases Hospital

Cooperative Institutions

Shaanxi Normal University

Chinese Academy of Sciences

Xinjiang Technical Institute of Physics & Chemistry

University of Chinese Academy of Sciences

Tsinghua University

National Institute for Radiological Protection

Sichuan University

Zhejiang University

China XD Group (China)

Beijing Chemical Industry Research Institute (China)

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Progress of sensitive materials in chemiresistive sensors for detecting chemical warfare agent simulants: A review

Reviews in Analytical Chemistry (2023)

Yang Liu Molin Qin Genwei Zhang Jie Yang Junchao Yang

Abstract Chemical warfare agents (CWAs) are chemical substances intended for use in military operations to kill, injure, or incapacitate an enemy. It is very important to detect toxic CWAs at trace levels on site. Compared with traditional CWA analysis instrument methods, chemiresistive gas sensors present advantages of being small, fast, and inexpensive. Chemiresistive gas sensors are still an important research topic with the development of nanofabrication technology and new kinds of sensing materials, including carbon nanotubes, graphene, and black phosphorus (BP). Chemiresistive gas sensors are divided into three categories according to the type of sensitive materials: carbon- and BP-based materials, conductive polymers, and metal oxide semiconductors. A brief analysis was carried out on fabrication strategies using sensitive materials, including hydrogen bonding strategies, nanostructures, morphology, doping effects, composite materials, and other material application methods, and the sensitive materials and detection effects are summarized in this study. This review aims to provide guidance in the development of chemiresistive sensors for the detection of CWAs.

Chemical Warfare Agents

Chemical warfare

10.1515/revac-2022-0052

Cite

Citations (10)

Defect Engineering Zr‐MOF‐Endowed Activity‐Dimension Dual‐Sieving Strategy for Anti‐acid Recognition of Real Phosphoryl Fluoride Nerve Agents

Advanced Functional Materials (2025)

Runqiang Zang Yuan Liu Yihang Wang Feng Lu Yuansheng Ge

Abstract Defect‐engineering‐involved metal‐organic frameworks (MOFs) have been highly valued in many fields due to the enhanced porosity and abundant active sites, but how the systematic modulation on deficiency influencing fluorescent sensing performance is still in its infancy. Here, systematic defect‐engineering of MOF‐525 is used to modulate the exposure of zirconium (Zr) clusters and the sieving capability of inner channels, enabling precise fluorescent sensing of phosphoryl fluoride nerve agents with specific chemical activity and molecular dimensions. Controllable defects transformed the localized emission of porphyrin into ligand‐metal charge transferring (LMCT) due to the gradual loss of the ligand molecules, which is interrupted upon the coordination of nerve agents, triggering a red turn‐on fluorescence. Thus, the defective MOF‐525 with 60% deficiency effectively discriminates the phosphoryl fluoride nerve agents (e.g., sarin, soman) from similar substances (e.g., tabun, venomous agent X) due to synergistic sieving effect of chemical activity and molecular dimension. It exhibits highly sensitive (0.96 n m /3.8 ppb), rapid (<1 s) response toward target nerve agents and is robust to the environmental interference from the acidic, humid and common fluorescent substances. This work enhances understanding of defect‐engineering MOFs and the correpsonding luminescent behavior, paving a new avenue for sensing strategy of trace real nerve agent vapor.

10.1002/adfm.202425082

Cite

Citations (0)

Synthesis of Polycarbosilane with a Super High Molecule Weight and Its Characterization

Journal of National University of Defense Technology (2006)

Molin Qin

By orthogonal design strategy,PCS with a super high molecule weight was synthesized under high pressure from the PCS with a low/middle molecule weight synthesized under normal pressure.Its structure and performance were characterized by FTIR、GPC and NMR.It was found that suitable reaction condition should be 6 hours at 460℃ to 470℃ and under 1MPa to 2MPa beforehand.Average molecule weight of the synthesized PCS was 6400 to 8500.Both its degree of branching and its content of Si-H bond decreased slightly compared with the material PCS.The average molecule weight of PCS with a super high molecule weight could be adjusted preferably by means of controlling reaction time.

Branching (polymer chemistry)

Source

Cite

Citations (0)

Wireless passive surface acoustic wave (SAW) technology in gas sensing

Sensor Review (2021)

Yong Pan Molin Qin Tengxiao Guo Lin Zhang Bingqing Cao

Purpose This paper aims to give an overview about the state of wireless passive surface acoustic wave (SAW) gas sensor used in the detection of chemical vapor. It also discusses a variety of different architectures including delay line and array sensor for gas detection, and it is considered that this technology has a good application prospect. Design/methodology/approach The authors state the most of the wireless passive SAW methods used in gas sensing, such as CO2, CO, CH4, C2H4, NH3, NO2, et al. , the sensor principles, design procedures and technological issues are discussed in detail; their advantages and disadvantages are also summarized. In conclusion, it gives a prospect of wireless passive SAW sensor applications and proposes the future research field might lie in the studying of many kinds of harmful gases. Findings In this paper, the authors will try to cover most of the important methods used in gas sensing and their recent developments. Although wireless passive SAW sensors have been used successfully in harsh environments for the monitoring of temperature or pressure, the using in chemical gases are seldom reported. This review paper gives a survey of the present state of wireless passive SAW sensor in gas detection and suggests new and exciting perspectives of wireless passive SAW gas sensor technology. Research limitations/implications The authors will review most of the methods used in wireless passive SAW sensor and discuss the current research status and development trend; the potential application in future is also forecasted. Originality/value The authors will review most of the methods used in wireless passive SAW sensor and discuss the current research status and development trend; the potential application in future is also forecasted.

10.1108/sr-03-2020-0061

Cite

Citations (19)

Research on the Interaction of Hydrogen-Bond Acidic Polymer Sensitive Sensor Materials with Chemical Warfare Agents Simulants by Inverse Gas Chromatography

Sensors (2015)

Yang Liu Qiang Han Shuya Cao Feng Huang Molin Qin

Hydrogen-bond acidic polymers are important high affinity materials sensitive to organophosphates in the chemical warfare agent sensor detection process. Interactions between the sensor sensitive materials and chemical warfare agent simulants were studied by inverse gas chromatography. Hydrogen bonded acidic polymers, i.e., BSP3, were prepared for micro-packed columns to examine the interaction. DMMP (a nerve gas simulant) and 2-CEES (a blister agent simulant) were used as probes. Chemical and physical parameters such as heats of absorption and Henry constants of the polymers to DMMP and 2-CEES were determined by inverse gas chromatography. Details concerning absorption performance are also discussed in this paper.

Inverse gas chromatography

Chemical Warfare Agents

Chemical warfare

10.3390/s150612884

Cite

Citations (2)

Compact device prototype for turn-on fluorescent detection of Sarin based on reactive 4,4-diaryloxy-BODIPY derivatives

Sensors & Diagnostics (2024)

Lu Liu Sheng Li Wendan Luo Jiashuang Yao Taihong Liu

4,4-Diaryloxy-BODIPYs were presented for fluorescence turn-on detection of sarin in solution media. A compact tubular sensor and a sensing platform prototype were fabricated for in situ detection of real agents and simulants at the sub-mM level.

BODIPY

Turn (biochemistry)

10.1039/d4sd00228h

Cite

Citations (0)

Au- ZnFe2O4 hollow microspheres based gas sensor for detecting the mustard gas simulant 2-chloroethyl ethyl sulfide

Analytical Sciences (2024)

Junchao Yang Molin Qin Yong Pan Liu Yang Jianan Wei

Abstract Mustard gas, a representative of blister agents, poses a severe threat to human health. Although the structure of 2-chloroethyl ethyl sulfide (2-CEES) is similar to mustard gas, 2-CEES is non-toxic, rendering it a commonly employed simulant in related research. ZnFe 2 O 4 -based semiconductor gas sensors exhibit numerous advantages, including structural stability, high sensitivities, and easy miniaturization. However, they exhibit insufficient sensitivity at low concentrations and require high operating temperatures. Owing to the effect of electronic and chemical sensitization, the gas-sensing performance of a sensor may be remarkably enhanced via the sensitization method of noble metal loading. In this study, based on the morphologies of ZnFe 2 O 4 hollow microspheres, a solvothermal method was adopted to realize different levels of Au loading. Toward 1 ppm of 2-CEES, the gas sensor based on 2 wt.% Au-loaded ZnFe 2 O 4 hollow microspheres exhibited a response sensitivity twice that of the gas sensor based on pure ZnFe 2 O 4 ; furthermore, the response/recovery times decreased. Additionally, the sensor displayed excellent linear response to low concentrations of 2-CEES, outstanding selectivity in the presence of several common volatile organic compounds, and good repeatability, as well as long-term stability. The Au-loaded ZnFe 2 O 4 -based sensor has considerable potential for use in detecting toxic chemical agents and their simulants. Graphical abstract

Repeatability

10.1007/s44211-024-00573-z

Cite

Citations (0)

Synthesis and Application of Polymer SXFA in the Detection of Organophosphine Agents with a SAW Sensor

Polymers (2024)

Cancan Yan Molin Qin Tengxiao Guo Lin Zhang Junchao Yang

The effective detection of isopropyl methylfluorophosphonate (GB, sarin), a type of organophosphine poisoning agent, is an urgent issue to address to maintain public safety. In this research, a gas-sensitive film material, poly (4-hydroxy-4,4-bis trifluoromethyl)-butyl-1-enyl)-siloxane (SXFA), with a structure of hexafluoroisopropyl (HFIP) functional group was synthesized by using methyl vinylpropyl dichlorosilane and hexafluoroacetone trihydrate as initial materials. The synthesis process products were characterized using FTIR. SXFA was prepared on a 200 MHz shear surface wave delay line using the spin-coating method for GB detection. A detection limit of <0.1 mg/m3 was achieved through conditional experiments. Meanwhile, we also obtained a maximum response of 2.168 mV at a 0.1 mg/m3 concentration, indicating the much lower detection limit of the SAW-SXFA sensor. Additionally, a maximum response standard deviation of 0.11 mV with a coefficient of variation of 0.01 and a maximum recovery standard deviation of 0.22 mV with a coefficient of variation of 0.02 were also obtained through five repeated experiments. The results show that the SAW-SXFA sensor has strong selectivity and reproducibility, good selectivity, positive detection ability, high sensitivity, and fast alarm performance for sarin detection.

Isopropyl alcohol

10.3390/polym16060784

Cite

Citations (1)

SYNTHESIS OF HIGH MOLECULE WEIGHT POLYCARBOSILANE

Acta Polymerica Sinica (2009)

Xue Jin-gen Yingde Wang Yongcai Song Molin Qin

10.3724/sp.j.1105.2007.00219

Cite

Citations (0)

Designing a one-dimensional photonic crystal sensor for dimethyl methylphosphonate detection leveraging a hydrogen-bonding-based acidic strategy

Sensors and Actuators B Chemical (2024)

Jianan Wei Junchao Yang Molin Qin Yang Liu Shuya Cao

Dimethyl methylphosphonate

10.1016/j.snb.2024.136722

Cite

Citations (1)