scholarly journals Polar Lipids in Starch-Rich Commodities to be Analyzed with LC-MS-Based Metabolomics—Optimization of Ionization Parameters and High-Throughput Extraction Protocols

Metabolites ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 167 ◽  
Author(s):  
Christin Claassen ◽  
Jürgen Kuballa ◽  
Sascha Rohn
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Matrix Effects ◽  
Polar Lipids ◽  
Ionization Source ◽  
Long Term Stability ◽  
Folch Method ◽  
Ion Mobility Spectroscopy ◽  
Targeted Approach

Metabolomics-based approaches are still receiving growing attention with regard to food authenticity testing. Such studies require enormous sample numbers with negligible experimental or analytical variations to obtain statistically reliable results. In this context, an extraction protocol in line with optimized ionization parameters was developed in consideration of potential starch-derived matrix effects focusing on the polar lipids of potatoes. Therefore, well-known extractions (Bligh and Dyer, Folch, Matyash, and a n-hexane-based procedure) were compared in a non-targeted and a targeted approach regarding the extractability of their lipids such as phosphatidylcholines, phosphatidylethanolamines, galacto- and glucocerebrosides, di- and triglycerides, and acylated steryl glucosides. The selected Folch method was also scrutinized in view of its ability to remove the matrix’s starch and consequently improved by substituting trichlormethane with ethyl acetate as a “greener” Folch approach. Moreover, the challenge of starch-derived contamination and imminent ion suppression in the electrospray ionization source (ESI) was addressed by an optimization of ionization parameters varying desolvation settings, removing injection peaks, and increasing the angles and distances of the ESI-device. Long-term stability tests over five days were performed successfully with a combination of appropriate extraction and decreased desolvation settings during ionization. In conclusion, the present methodology provided the basis for on-going large-scale metabolomic studies with respect to the botanical origin of potatoes using UPLC-IMS-QToF (ultra-high performance liquid chromatography ion mobility spectroscopy quadrupole-time of flight mass spectrometer).

Research of High Performance Artificial Reef for Breeding Abalone in Sea Water

2006 ◽  
Vol 302-303 ◽  
pp. 398-404
Author(s):  
Ming Tang ◽  
Xiao Li ◽  
Tao Wang
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Sea Water ◽  
Artificial Reef ◽  
Silicon Powder ◽  
Ocean Current ◽  
Concrete Technology ◽  
Long Term Stability ◽  
One Year

According to abalone’s growth characteristics, artificial abalone reefs are invented in this paper. The trace elements are added in concrete. The proportion is fixed by test. Ocean alga adheres to reefs with them very well. The craft, matching optimization, curing terms in the island environment and concrete long-term stability in the ocean current are studied to solve the durability of reefs in the marine environment. It shows the durability of fishing reef by high performance, high function, and ecological concrete technology is reliable. Its strength is still increasing for one year and no damage has been found. It is feasible to use the complex admixture, high-quality fly ash, ultrafine silicon powder, surface-soaking-into water-hating material made by our own, adhering-shaking-compact molding equipment made by ourselves and solar-energy-curing technology. Ten thousands of large-scale artificial abalone reefs have been done. A large amount of marine organisms covered the reefs only after 40 days using.

scholarly journals Using MoS2/Fe3O4 as Ion-Electron Transduction Layer to Manufacture All-Solid-State Ion-Selective Electrode for Determination of Serum Potassium

Chemosensors ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 155
Author(s):  
Yan Su ◽  
Ting Liu ◽  
Caiqiao Song ◽  
Aiqiao Fan ◽  
Nan Zhu ◽  
...  
Keyword(s):  
High Performance ◽  
Accurate Determination ◽  
Water Layer ◽  
Ion Selective Electrode ◽  
Potential Response ◽  
Selective Electrode ◽  
Response Measurement ◽  
Long Term Stability

As an essential electrolyte for the human body, the potassium ion (K+) plays many physiological roles in living cells, so the rapid and accurate determination of serum K+ is of great significance. In this work, we developed a solid-contact ion-selective electrode (SC-ISE) using MoS2/Fe3O4 composites as the ion-to-electron transducer to determine serum K+. The potential response measurement of MoS2/Fe3O4/K+-ISE shows a Nernst response by a slope of 55.2 ± 0.1 mV/decade and a low detection limit of 6.3 × 10−6 M. The proposed electrode exhibits outstanding resistance to the interference of O2, CO2, light, and water layer formation. Remarkably, it also presents a high performance in potential reproducibility and long-term stability.

High-performance humidity sensors from Ni(SO4)0.3(OH)1.4 nanobelts

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6521-6525 ◽  
Author(s):  
Ming Zhuo ◽  
Yuejiao Chen ◽  
Tao Fu ◽  
Haonan Zhang ◽  
Zhi Xu ◽  
...  
Keyword(s):  
High Performance ◽  
Humidity Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Humidity Sensors ◽  
Term Stability ◽  
Long Term Stability

Ni(SO4)0.3(OH)1.4 nanobelts are utilized in a humidity sensor by a facile method. The nanobelt based sensor shows a high sensitivity, fast response and long-term stability in the sensing process.

scholarly journals High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

RSC Advances ◽  
2020 ◽  
Vol 10 (59) ◽  
pp. 35831-35839 ◽  
Author(s):  
Mustafa K. A. Mohammed
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carbon Nanotube ◽  
High Performance ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Manufacturing Cost ◽  
Long Term Stability

Carbon-based perovskite solar cells (C-PSCs) are the most promising photovoltaic (PV) due to their low material and manufacturing cost and superior long-term stability.

scholarly journals Bioinspired nano-ordered liquid membrane for precise molecular separation

2020 ◽  
Author(s):  
Haozhen Dou ◽  
Mi Xu ◽  
Baoyu Wang ◽  
Zhen Zhang ◽  
Guobin Wen ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Performance ◽  
Liquid Membrane ◽  
Three Dimensional ◽  
Cellular Membrane ◽  
Liquid Structure ◽  
Long Term Stability ◽  
Separation Membranes ◽  
Molecular Separation

Abstract Cellular membranes provide ideal archetypes for molecule or ion separations with sub-angstrom scale precision, which are featured with both extremely high permeability and selectivity due to the well-defined membrane protein channels. However, the development of bioinspired membranes with artificial channels for sub-angstrom scale ethylene/ethane (0.416 nm / 0.443 nm) separation remains an uncharted territory and a significant challenge. Herein, a bioinspired nano-ordered liquid membrane is constructed by a facile ion/molecule self-assembly strategy for highly efficient ethylene/ethane separation, which mimics the structure of cellular membrane elegantly and possesses plenty of three-dimensional (3D) nanochannels. The elaborate regulation of non-covalent interactions by optimizing the ion/molecule compositions within membrane confers the nano-ordered liquid structure with interpenetrating and bi-continuous apolar domains and polar domains, which results in the formation of regular carrier wires and enormous 3D interconnected ethylene transport nanochannels. By virtue of these 3D nanochannels, the bioinspired nano-ordered liquid membrane manifests simultaneously super-high selectivity, excellent permeance and long-term stability, which exceeds previously reported ethylene/ethane separation membranes. This methodology in this work for construction of bioinspired membrane with tunable 3D nanochannels through ion/molecule self-assembly will enlighten the design and development of high-performance separation membranes for angstrom/sub-angstrom scale ion or molecule separations.

A high performance ceria-based solid oxide fuel cell operating on underground coal gasification gas

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87477-87483 ◽  
Author(s):  
Jie Xiong ◽  
Chengran Jiao ◽  
Minfang Han ◽  
Wentao Yi ◽  
Jie Ma ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Underground Coal Gasification ◽  
Long Term Stability

A NiO-GDC‖GDC‖Ba0.9Co0.7Fe0.2Nb0.1O3−δ cell fed with UCG gas demonstrated exceptional electrochemical performance and desirable long term stability.

A new dialkylthio-substituted naphtho[2,3-c]thiophene-4,9-dione based polymer donor for high-performance polymer solar cells

2019 ◽  
Vol 12 (2) ◽  
pp. 675-683 ◽  
Author(s):  
Yue Wu ◽  
Hang Yang ◽  
Yan Zou ◽  
Yingying Dong ◽  
Jianyu Yuan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymer ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Donor Material ◽  
High Performance Polymer

A dialkylthio-substituted conjugated polymer is designed and synthesized as a donor material for high-performance polymer solar cells with long-term stability.

Hepatocyte Aggregate Culture Technique for Bioreactors in Hybrid Liver Support Systems

1993 ◽  
Vol 16 (12) ◽  
pp. 843-846 ◽  
Author(s):  
J.C. Gerlach ◽  
K. Klöppel ◽  
C. MÜller ◽  
N. Schnoy ◽  
M.D. Smith ◽  
...  
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Support Systems ◽  
Three Dimensional ◽  
Culture Technique ◽  
Dimensional Structure ◽  
Cell Aggregates ◽  
Liver Support ◽  
Aggregate Culture

Utilizing a modified culture technique for hepatocytes, a high performance suspension culture is possible in which hepatocytes spontaneously form cell aggregates. The aggregates of 20-100 cells have been histologically confirmed to hold a three-dimensional structure, they show a long-term external metabolism and a survival time comparable with standard adhesion cultures. This technique has several advantages in the construction of large scale bioreactors for hybrid liver support systems.

scholarly journals Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening

Membranes ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 251
Author(s):  
Pengrui Jin ◽  
Michiel Robeyn ◽  
Junfeng Zheng ◽  
Shushan Yuan ◽  
Bart Van der Bruggen
Keyword(s):  
High Performance ◽  
Molecular Structures ◽  
Water Softening ◽  
Selective Layer ◽  
Long Term Stability ◽  
Composition And Structure ◽  
Amine Groups ◽  
High Rejection ◽  
Positively Charged

High-performance positively-charged nanofiltration (NF) membranes have a profound significance for water softening. In this work, a novel monomer, tris(3-aminopropyl)amine (TAEA), with one tertiary amine group and three primary amine groups, was blended with trace amounts of piperazine (PIP) in aqueous solution to fabricate a positively-charged NF membrane with tunable performance. As the molecular structures of TAEA and PIP are totally different, the chemical composition and structure of the polyamine selective layer could be tailored via varying the PIP content. The resulting optimal membrane exhibited an excellent water permeability of 10.2 LMH bar−1 and a high rejection of MgCl2 (92.4%), due to the incorporation of TAEA/PIP. In addition, this TAEA NF membrane has a superior long-term stability. Thus, this work provides a facile way to prepare a positively charged membrane with an efficient water softening ability.

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