Versuche über die Wasserbindung anorganischer Stoffe. I

Büll, R.

doi:10.1002/ange.19360490802

Cited by 15 publications

(5 citation statements)

References 24 publications

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“…Moreover, water sorption and desorption isotherms at room temperature (Figure 3) indicate the stepwise hydration/dehydration and hysteresis characteristics of crystal hydrates. [12] Interestingly, in the case of the above-mentioned organic crystals, these steps involve close to integer multiples of water molecules per p-6 PA-HPB molecule. The pronounced hysteresis isotherm predicts that a considerable amount of water remains in the crystalline material.…”

Section: Methodsmentioning

confidence: 98%

Phosphonated Hexaphenylbenzene: A Crystalline Proton Conductor

et al. 2009

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Section: Methodsmentioning

confidence: 98%

Phosphonated Hexaphenylbenzene: A Crystalline Proton Conductor

et al. 2009

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“…It is known that crystal hydrates can adsorb water either in a stepwise manner or in a continuous way,43, 44 which is in contrast to polymers that adsorb water continuously 45. It has previously been determined that 6 belongs to the first type of crystal hydrate, which adsorbs water in a stepwise way 34.…”

Section: Resultsmentioning

confidence: 99%

Organic Proton‐Conducting Molecules as Solid‐State Separator Materials for Fuel Cell Applications

Jiménez‐García

Kaltbeitzel

Enkelmann

et al. 2011

Adv Funct Materials

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Organic proton-conducting molecules are presented as alternative materials to state-of-the-art polymers used as electrolytes in proton-exchanging membrane (PEM) fuel cells. Instead of infl uencing proton conductivity via the mobility offered by polymeric materials, the goal is to create organic molecules that control the proton-transport mechanism through supramolecular order. Therefore, a series of phosphonic acid-containing molecules possessing a carbon-rich hydrophobic core and a hydrophilic periphery was synthesized and characterized. Proton conductivity measurements as well as water uptake and crystallinity studies (powder and single-crystal X-ray analysis) were performed under various conditions. These experiments reveal that proton mobility is closely connected to crystallinity and strongly dependent on the supramolecular ordering of the compound. This study provides insights into the proton-conducting properties of this novel class of materials and the mechanisms responsible for proton transport.

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“…Thermogravimetric analysis combined with mass spectrometry indicated that 8 wt % of water is released only at temperatures well above the boiling point of water (see Figure S2 in the Supporting Information). Moreover, water sorption and desorption isotherms at room temperature (Figure 3) indicate the stepwise hydration/dehydration and hysteresis characteristics of crystal hydrates 12. Interestingly, in the case of the above‐mentioned organic crystals, these steps involve close to integer multiples of water molecules per p ‐6 PA‐HPB molecule.…”

Section: Methodsmentioning

confidence: 96%

Nanoparticle‐Based Electrochemical Immunosensor for the Detection of Phosphorylated Acetylcholinesterase: An Exposure Biomarker of Organophosphate Pesticides and Nerve Agents

Liu

Wang

Barry

et al. 2008

Chemistry A European J

151

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A nanoparticle-based electrochemical immunosensor has been developed for the detection of phosphorylated acetylcholinesterase (AChE), which is a potential biomarker of exposure to organophosphate (OP) pesticides and chemical warfare nerve agents. Zirconia nanoparticles (ZrO(2) NPs) were used as selective sorbents to capture the phosphorylated AChE adduct, and quantum dots (ZnS@CdS, QDs) were used as tags to label monoclonal anti-AChE antibody to quantify the immunorecognition events. The sandwich-like immunoreactions were performed among the ZrO(2) NPs, which were pre-coated on a screen printed electrode (SPE) by electrodeposition, phosphorylated AChE and QD-anti-AChE. The captured QD tags were determined on the SPE by electrochemical stripping analysis of its metallic component (cadmium) after an acid-dissolution step. Paraoxon was used as the model OP insecticide to prepare the phosphorylated AChE adducts to demonstrate proof of principle for the sensor. The phosphorylated AChE adduct was characterized by Fourier transform infrared spectroscopy (FTIR) and mass spectroscopy. The binding affinity of anti-AChE to the phosphorylated AChE was validated with an enzyme-linked immunosorbent assay. The parameters (e.g., amount of ZrO(2) NP, QD-anti-AChE concentration,) that govern the electrochemical response of immunosensors were optimized. The voltammetric response of the immunosensor is highly linear over the range of 10 pM to 4 nM phosphorylated AChE, and the limit of detection is estimated to be 8.0 pM. The immunosensor also successfully detected phosphorylated AChE in human plasma. This new nanoparticle-based electrochemical immunosensor provides an opportunity to develop field-deployable, sensitive, and quantitative biosensors for monitoring exposure to a variety of OP pesticides and nerve agents.

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Versuche über die Wasserbindung anorganischer Stoffe. I

Cited by 15 publications

References 24 publications

Phosphonated Hexaphenylbenzene: A Crystalline Proton Conductor

Phosphonated Hexaphenylbenzene: A Crystalline Proton Conductor

Organic Proton‐Conducting Molecules as Solid‐State Separator Materials for Fuel Cell Applications

Nanoparticle‐Based Electrochemical Immunosensor for the Detection of Phosphorylated Acetylcholinesterase: An Exposure Biomarker of Organophosphate Pesticides and Nerve Agents

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