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991.
992.
Nikita M. Ivanov Mathieu G. Baltussen Cristina Lía Fernández Regueiro Max T. G. M. Derks Dr. Prof. Wilhelm T. S. Huck 《Angewandte Chemie (International ed. in English)》2023,62(7):e202215759
Living systems use enzymatic reaction networks to process biochemical information and make decisions in response to external or internal stimuli. Herein, we present a modular and reusable platform for molecular information processing using enzymes immobilised in hydrogel beads and compartmentalised in a continuous stirred tank reactor. We demonstrate how this setup allows us to perform simple arithmetic operations, such as addition, subtraction and multiplication, using various concentrations of substrates or inhibitors as inputs and the production of a fluorescent molecule as the readout. 相似文献
993.
Mathieu Bertrand Quang‐Minh Thai Jrmie Chrtien Nicolas Pauc Joris Aubin Laurent Milord Alban Gassenq Jean‐Michel Hartmann Alexei Chelnokov Vincent Calvo Vincent Reboud 《Annalen der Physik》2019,531(6)
From temperature‐dependent photoluminescence of a single Ge0.84Sn0.16 sample, Sn‐related Varshni parameters are extracted and used as input parameters in an 8‐band k·p model, and predict direct bandgap energies of high Sn content GeSn alloys with concentration varying from 8% to 16%. Then, exhaustively compared are the calculated direct Γ‐valley bandgap energies to photoluminescence results of 13% and 16% Sn content alloys and to direct bandgap energies found in literature. The agreement between k·p modeling and experimental datasets is close to 3% for different strain conditions of GeSn epilayers. The outcome of this study is an 8‐band k·p model with a fixed set of parameters, the model being self‐sufficient to describe the direct bandgap of Ge1?xSnx layers with x varying from 8% to 16% for large ranges of strain and temperature. 相似文献
994.
Veronique Nelis Arnout Declerck Lien Vermeir Mathieu Balcaen Koen Dewettinck Paul Van der Meeren 《Magnetic resonance in chemistry : MRC》2019,57(9):707-718
Water-in-oil-in-water (W/O/W) double emulsions are a promising technology for encapsulation applications of water soluble compounds with respect to functional food systems. Yet molecular transport through the oil phase is a well-known problem for liquid oil-based double emulsions. The influence of network crystallization in the oil phase of W/O/W globules was evaluated by NMR and laser light scattering experiments on both a liquid oil-based double emulsion and a solid fat-based double emulsion. Water transport was assessed by low-resolution NMR diffusometry and by an osmotically induced swelling or shrinking experiment, whereas manganese ion permeation was followed by means of T2-relaxometry. The solid fat-based W/O/W globules contained a crystal network with about 80% solid fat. This W/O/W emulsion showed a reduced molecular water exchange and a slower manganese ion influx in the considered time frame, whereas its globule size remained stable under the applied osmotic gradients. The reduced permeability of the oil phase is assumed to be caused by the increased tortuosity of the diffusive path imposed by the crystal network. This solid network also provided mechanical strength to the W/O/W globules to counteract the applied osmotic forces. 相似文献
995.
Calvine Lai Gary Mathieu Lucia Paola Gabrielli Tabarez Prof. Dr. Hélène Lebel 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(40):9423-9426
The synthesis of sulfilimines and sulfoximines with N-mesyloxycarbamates in presence of catalytic iron(II) chloride hydrate is described. The use of 1-butylimidazole as a base proved instrumental in enabling a homogeneous reaction mixture compatible with continuous flow processes. The amination is applicable to a wide range of substrates, and affords the desired product in good to excellent yields within 1 to 60 minutes. 相似文献
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998.
Cédric Caudan Ahlem Filali Dominique Lefebvre Mathieu Spérandio Elisabeth Girbal-Neuhauser 《Applied biochemistry and biotechnology》2012,166(7):1685-1702
A multi-method protocol previously proposed for the extraction of extracellular polymeric substances (EPS) from flocculated
sludges was investigated on dense aerobic granules. The protocol combines mechanical disruption by sonication and chemical
extraction using the Tween detergent and the cation chelator, EDTA. Polysaccharides were mainly recovered during the first
sonication step while proteins were recovered all along the extractive procedure with a high prevalence in the EDTA step.
These data confirmed the interest of the multi-method protocol for harvesting a diversified pool of EPS from dense granules
and for fractionation of the polymers according to their physicochemical properties. In addition, the high extractability
of proteins with EDTA confers a specific behavior of the aerobic granules towards the multi-method extraction protocol, supporting
the idea that proteins are associated in the granule matrix through ionic interactions involving divalent cations. Analysis
of the extracted EPS by anionic exchange chromatography confirmed the presence of highly anionic proteins that were specifically
detected in the extracts obtained from granules. One important question is now to investigate whether these highly anionic
proteins are involved in the aggregation and densification process and if their presence is related to the cohesive properties
of these particles. 相似文献
999.
In this paper we critically review detection limits of electrochemical DNA biosensors enabling DNA detection without target labelling. The review includes transduction principles and latest breakthroughs. To compare the efficiency of each type of electrochemical DNA biosensor, a simple DNA biosensors classification is established on the basis of the nature of the bio-electrochemical transduction. 相似文献
1000.