Effect of polydimethylsiloxane (PDMS) coating on TiO2-based MALDI matrix for dimethyl methylphosphonate (DMMP) analysis

Park, Eun Ji; Han, Sang Wook; Jeong, Bora; Park, Seon Hwa; Kim, Yang‐Gyun; Kim, Yong Ho; Kim, Young Dok

doi:10.1016/j.apsusc.2015.06.122

Cited by 6 publications

(3 citation statements)

References 56 publications

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“…In the multilayer sensing film, PVDF was used to protect the metal interdigital electrode, and porous graphene could effectively increase the specific surface area of the sensing film and increased the adsorption of the gas to be measured. When the sensitive membrane adsorbs DMMP gas, DMMP molecules pass through the porous structure, the O atom in the P = O group of DMMP and the H atom of PVDF form an H-bond [ 36 ] structure, which achieves specific recognition. The synergetic effect between PVDF and porous graphene was proven by the enhancement of sensitivity.…”

Section: Resultsmentioning

confidence: 99%

Surface Acoustic Wave DMMP Gas Sensor with a Porous Graphene/PVDF Molecularly Imprinted Sensing Membrane

Zhang

Cui

et al. 2021

Micromachines

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In this paper, surface acoustic wave (SAW) sensors containing porous graphene/PVDF (polyvinylidene fluoride) molecularly imprinted sensitive membrane for DMMP gas detection were investigated. A 433 MHz ST-cut quartz SAW resonator was used to convert gas concentration changes into frequency shifts by the sensors. The porous graphene/PVDF film was fabricated on the sensor’s surface by using the tape-casting method. DMMP molecules were adsorbed on the porous structure sensing film prepared by the 2-step method to achieve the specific recognition effect. The sensitivity of the sensor could reach −1.407 kHz·ppm−1. The response time and recovery time of the SAW sensor with porous graphene/PVDF sensing membrane were about 4.5 s and 5.8 s at the concentration of 10 ppm, respectively. The sensor has good anti-interference ability to most gases in the air.

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Section: Resultsmentioning

confidence: 99%

Surface Acoustic Wave DMMP Gas Sensor with a Porous Graphene/PVDF Molecularly Imprinted Sensing Membrane

Zhang

Cui

et al. 2021

Micromachines

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“…Figure 5 shows the FT-IR spectra of pyrolysis products of NC and (DMMP/CP = 8/2)/NC at the maximum decomposition temperature. The latter sample shows several new small peaks near 806 cm -1 , 918 cm -1 , 1060 cm -1 and 1161 cm -1 , 1284 cm -1 and 1321 cm -1 , which correspond with the P-O [34], P-O-C [35], PO 2 [34], P=O [36,37] and CH 3 -P [37,38], respectively, from the decomposition of DMMP. Furthermore, the peak near 2885 cm -1 contains absorption band of HCl, that is released by CP, which may overlap with C-H bands of NC and CP.…”

Section: Thermal Behaviors and Pyrolysis Processmentioning

confidence: 91%

Self-extinguishing low-nitrogen nitrocellulose based on synergistic effect of dimethyl methylphosphonate and long-chain chlorinated paraffin

et al. 2018

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A series of flame retardant low-nitrogen nitrocelluloses (FR/NCs) containing different weight ratios of dimethyl methylphosphonate (DMMP) and long-chain chlorinated paraffin (CP) were directly prepared by blending method, and the burning behaviors, thermal and mechanical properties, pyrolysis process and char residues were investigated. The results showed that (DMMP/CP = 8/2)/NC at a total flame retardant loading of 17 wt % displayed the self-extinguishing behavior following a multiflame retardancy mechanism with synergistic effect that includes gas-phase effects, endothermic effects and slightly condensed-phase effects of flame retardancy. In addition, the tensile properties of the (DMMP/CP = 8/2)/NC revealed a synergistic plasticization effect, which could enhance the flexibility of NC. This new system provided a reference for improving a safety storage and widely application of NC in the future.

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“…Besides carbon-based nanomaterials, metal-based nanomaterials are agood candidate as highly efficient matrices for LDI-MS for the analysis of small molecules. Among various metal-or metal oxide-based nanomaterials (e.g., Au [ 51 , 52 , 53 , 54 , 55 ], Ag [ 56 ], Pt [ 57 , 58 , 59 ], TiO 2 [ 60 , 61 , 62 ], ZnO [ 63 ], CdS [ 64 ], and HgTe [ 65 ] NPs) that explored as matrices for LDI-TOF MS, TiO 2 and gold NPs (Au NPs) attracted much more attention because their intrinsic advantages, such as large surface area, strong absorption efficiency in UV-visible region, high chemical stability, easy modification and preparation.…”

Section: Nanomaterial-assisted Ldi Methods Developmentmentioning

confidence: 99%

Nanomaterials as Assisted Matrix of Laser Desorption/Ionization Time-of-Flight Mass Spectrometry for the Analysis of Small Molecules

Yang

et al. 2017

Nanomaterials

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Matrix-assisted laser desorption/ionization (MALDI), a soft ionization method, coupling with time-of-flight mass spectrometry (TOF MS) has become an indispensible tool for analyzing macromolecules, such as peptides, proteins, nucleic acids and polymers. However, the application of MALDI for the analysis of small molecules (<700 Da) has become the great challenge because of the interference from the conventional matrix in low mass region. To overcome this drawback, more attention has been paid to explore interference-free methods in the past decade. The technique of applying nanomaterials as matrix of laser desorption/ionization (LDI), also called nanomaterial-assisted laser desorption/ionization (nanomaterial-assisted LDI), has attracted considerable attention in the analysis of low-molecular weight compounds in TOF MS. This review mainly summarized the applications of different types of nanomaterials including carbon-based, metal-based and metal-organic frameworks as assisted matrices for LDI in the analysis of small biological molecules, environmental pollutants and other low-molecular weight compounds.

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Effect of polydimethylsiloxane (PDMS) coating on TiO2-based MALDI matrix for dimethyl methylphosphonate (DMMP) analysis

Cited by 6 publications

References 56 publications

Surface Acoustic Wave DMMP Gas Sensor with a Porous Graphene/PVDF Molecularly Imprinted Sensing Membrane

Surface Acoustic Wave DMMP Gas Sensor with a Porous Graphene/PVDF Molecularly Imprinted Sensing Membrane

Self-extinguishing low-nitrogen nitrocellulose based on synergistic effect of dimethyl methylphosphonate and long-chain chlorinated paraffin

Nanomaterials as Assisted Matrix of Laser Desorption/Ionization Time-of-Flight Mass Spectrometry for the Analysis of Small Molecules

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