Category: 1205-17-0

Ge, Liang published the artcileIron-Catalyzed Radical Acyl-Azidation of Alkenes with Aldehydes: Synthesis of Unsymmetrical β-Azido Ketones, Formula: C11H12O3, the main research area is alkene aldehyde azidotrimethylsilane iron radical acylation azidation catalyst; ketone azido preparation.

An iron-catalyzed acyl-azidation of alkenes under mild reaction conditions has been developed. Aromatic aldehydes or aliphatic aldehydes can be used as the acyl radical precursors; TMSN3 is used as the azido source; TBHP is the initiator. The synthesized unsym. β-azido ketones can be easily transformed into valuable functionalized compounds, such as γ-aminol, γ-azido alc., β-azido oxime, β-azido ester, and triazoles.

Organic Letters published new progress about Acylation. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Alfinito, Eleonora published the artcileSmell Nanobiosensors: Hybrid systems based on the electrical response to odorant capture.Theory And Experiment, Application In Synthesis of 1205-17-0, the main research area is olfactory receptor 17 GPCR rhodopsin nanobiosensor odorant elec impedance.

Mammalian olfactory system is the bio-archetype of smell sensor devices. It is based on a very articulated mechanism which translate the odorant capture information performed by the olfactory receptors (ORs) into a code. Finally, the code is sent to the brain for aroma recognition. Our aim is to partially mimic this system to produce a biosensor on nanometric scale. The active part of the device is constituted of nanosomes containing specific ORs. Each nanosome is interfaced with nanoelectrodes and the odorant capture is converted into an elec. signal. Specifically, the elec. response is correlated with the conformational change that a single OR undergoes when it captures a specific odorant mol. An array of nanodevices should be able to produce specific response profiles. In this paper we present a possible theor. framework in which the exptl. results should be embedded. It consists of the description of the protein in terms of an impedance network able to simulate the elec. characteristics associated with the protein topol. (c) 2009 American Institute of Physics.

AIP Conference Proceedings published new progress about Biosensors. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application In Synthesis of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Alfinito, Eleonora published the artcileHuman olfactory receptor 17-40 as an active part of a nanobiosensor: a microscopic investigation of its electrical properties, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is human olfactory receptor nanobiosensor elec resistance impedance spectrum.

Increasing attention has recently been devoted to protein-based nanobiosensors. The main reason is the huge number of possible technol. applications, ranging from drug detection to early cancer diagnosis. Their operating model is based on protein activation and the corresponding conformational change due to the capture of an external mol., the so-called ligand. Recent measurements, performed with different techniques on the human 17-40 olfactory receptor, revealed a very narrow window of response in respect to the odor concentration This is a crucial point for understanding whether the use of this olfactory receptor as a sensitive part of a nanobiosensor is a good choice. In this paper we investigate the topol. and elec. properties of the human olfactory receptor 17-40 with the objective of providing a microscopic interpretation of available experiments To this purpose, we model the protein by means of a graph that is able to capture the mean features of the 3D backbone structure. The graph is then associated with an equivalent impedance network, able to evaluate the impedance spectra of the olfactory receptor in its native and activated state. We assume a topol. origin of the different protein elec. responses to different ligand concentrations: In this perspective all the exptl. data are collected and interpreted satisfactorily within a unified scheme, also useful for application to other proteins.

RSC Advances published new progress about Biosensors. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Vidic, Jasmina published the artcileOn a chip demonstration of a functional role for odorant binding protein in the preservation of olfactory receptor activity at high odorant concentration, Product Details of C11H12O3, the main research area is odorant binding protein olfactory receptor mucus surface plasmon resonance.

The mol. mechanisms underlying odorant detection were investigated using the chip based SPR technique by focusing on the dynamic interactions between transmembrane Olfactory Receptor OR1740, odorant ligands and soluble Odorant-Binding Protein (OBP-1F). The OR1740 present in the lipid bilayer of nanosomes derived from transformed yeasts specifically bound OBP-1F. The receptor preferential odorant ligand helional released bound OBP-1F from the OR-OBP complex, while unrelated odorants failed to do so. OBP-1F modified the functional OR1740 dose-response to helional, from a bell-shaped to a saturation curve, thus preserving OR activity at high ligand concentration This unravels an active role for OBPs in olfaction, in addition to passive transport or a scavenger role. This sensorchip technol. was applied to assessing native OBP-1F in a biol. sample: rat olfactory mucus also displayed significant binding to OR1740 nanosomes, and the addition of helional yielded the dissociation of mucus OBP from the receptor.

Lab on a Chip published new progress about Biosensors. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Product Details of C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wasilewski, Tomasz published the artcileDetermination of long-chain aldehydes using a novel quartz crystal microbalance sensor based on a biomimetic peptide, HPLC of Formula: 1205-17-0, the main research area is aliphatic aldehyde quartz crystal microbalance biosensor biomimetic peptide.

This study presents investigation on usefulness of the peptide mimicking HarmOBP7 region as a receptor element of the piezoelec. sensor for selective anal. of long-chain aldehydes. Identification of odorant binding proteins creates new possibilities for design of peptides mimicking binding properties of their volatile compounds Exploration of OBPs and new peptide sequences capable to effectively bind volatile compounds is necessary to enhance artificial olfaction. For the development of biosensors where simple detection is crucial rather than identification of subsequent metabolic activity, the use of sub-protein components (e.g. ligand-binding regions or synthetic peptides) is still escalating. Bearing all this in mind, a segment of a peptide sequence associated with a specific function of HarmOBP7 (involved in binding the long-chain aldehydes) has been designed, synthesized and immobilized on a piezoelec. transducer. The results of in silico investigations were correlated with the exptl. measurements of gas substances. The correlated results confirm a high selectivity of the KLLFDSLTDLKKKMSEC-based sensor with respect to long-chain aliphatic aldehydes including octanal, decanal, undecanal, nonanal and helional. Odorant mols. interact with recognition peptide with specific affinities. The results can throw a new light on the possibility of synthetic peptide application as a receptor layer in biosensors in odorants anal.

Microchemical Journal published new progress about Biomarkers. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, HPLC of Formula: 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Minic, Jasmina published the artcileFunctional expression of olfactory receptors in yeast and development of a bioassay for odorant screening, HPLC of Formula: 1205-17-0, the main research area is olfactory receptor yeast biosensor odorant screening.

The functional expression of olfactory receptors (ORs) is a primary requirement to examine the mol. mechanisms of odorant perception and coding. Functional expression of the rat I7 OR and its trafficking to the plasma membrane was achieved under optimized exptl. conditions in the budding yeast Saccharomyces cerevisiae. The membrane expression of the receptor was shown by Western blotting and immunolocalization methods. Moreover, we took advantage of the functional similarities between signal transduction cascades of G protein-coupled receptor in mammalian cells and the pheromone response pathway in yeast to develop a novel biosensor for odorant screening using luciferase as a functional reporter. Yeasts were engineered to coexpress I7 OR and mammalian Gα subunit, to compensate for the lack of endogenous Gpa1 subunit, so that stimulation of the receptor by its ligands activates a MAP kinase signaling pathway and induces luciferase synthesis. The sensitivity of the bioassay was significantly enhanced using mammalian Golf compared to the Gα15 subunit, resulting in dose-dependent responses of the system. The biosensor was probed with an array of odorants to demonstrate that the yeast-borne I7 OR retains its specificity and selectivity towards ligands. The results are confirmed by functional expression and bioluminescence response of human OR17-40 to its specific ligand, helional. Based on these findings, the bioassay using the luciferase reporter should be amenable to simple, rapid and inexpensive odorant screening of hundreds of ORs to provide insight into olfactory coding mechanisms.

FEBS Journal published new progress about Biosensors. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, HPLC of Formula: 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Clausen, Per Axel published the artcileBiocidal spray product exposure: Measured gas, particle, and surface concentrations compared with spray model simulations, Synthetic Route of 1205-17-0, the main research area is biocidal spray product simulation air pollution healt risk; Aerosols; ConsExpo Web; disinfectant; modeling.

The purpose of the study was to compare measured air and surface concentrations after application of biocidal spray products with concentrations simulated with the ConsExpo Web spray simulation tool. Three different biocidal spray products were applied in a 20 m3 climate test chamber with well-controlled environmental conditions (22 ± 1°C, 50 ± 2% relative humidity, and air exchange rate of 0.5 h-1). The products included an insect spray in a pressurized spray can, another insect spray product, and a disinfectant, the latter two applied sep. with the same pumped spray device. The measurements included released particles, airborne organic compounds in both gas and particle phase, and surface concentrations of organic compounds on the wall and floor in front of the spraying position and on the most remote wall. Spraying time was a few seconds and the air concentrations were measured by sampling on adsorbent tubes at 9-13 times points during 4 h after spraying. The full chamber experiment was repeated 2-3 times for each product. Due to sedimentation the concentrations of the particles in air decayed faster than explained by the air exchange rate. In spite of that, the non-volatile benzalkonium chlorides in the disinfectant could be measured in the air more than 30 min after spraying. ConsExpo Web simulated concentrations that were about half of the measured concentrations of the active substances when as many as possible of the default simulation parameters were replaced by the exptl. values. ConsExpo Web was unable to simulate the observed faster decay of the airborne concentrations of the active substances, which might be due to underestimation of the gravitational particle deposition rates. There was a relatively good agreement between measured surface concentrations on the floor and calculated values based on the dislodgeable amount given in the selected ConsExpo Web scenarios. It is suggested to always supplement simulation tool results with practical measurements when assessing the exposure to a spray product.

Journal of Occupational and Environmental Hygiene published new progress about Adsorption. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Synthetic Route of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Vidic, Jasmina published the artcileGold Surface Functionalization and Patterning for Specific Immobilization of Olfactory Receptors Carried by Nanosomes, Product Details of C11H12O3, the main research area is gold surface functionalization patterning immobilization olfactory receptor carried nanosome.

There is substantial interest in engineering solid supports to achieve functional immobilization of membrane receptors both for investigation of their biol. function and for the development of novel biosensors. Three simple and practical strategies for immobilization of a human olfactory receptor carried by nanosomes are presented. The basis of the functionalization of solid gold surfaces is a self-assembled monolayer (SAM) containing biotinyl groups. Biotinyl groups are subsequently used to attach neutravidin and then biotinylated monoclonal antibody directed against the receptor to allow its specific grafting. Surface plasmon resonance technique is implemented for real-time monitoring of step-by-step surface functionalization and, in addition, for testing the functional response of immobilized olfactory receptors. The authors show that OR1740 is functional when immobilized via a tag attached to its C-terminus, but not via its N-terminus. Finally, the authors demonstrate that gold surfaces can be patterned by the SAMs tested using microcontact printing. AFM images of immobilized nanosomes onto a patterned surface suggest that small nanosomes flatten and fuse into larger vesicles but do not merge into a continuous layer. The whole study emphasizes the outstanding performances of the BAT/PEGAT SAM, which could be useful for developing on-a-chip sensor formats for membrane receptor investigations and use.

Analytical Chemistry (Washington, DC, United States) published new progress about Adsorption. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Product Details of C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Csendes, Zita published the artcileInfluence of the Ionic Liquid on the Activity of a Supported Ionic Liquid Phase FeII Pincer Catalyst for the Hydrogenation of Aldehydes, Related Products of isoquinoline, the main research area is silica supported ionic liquid iron pincer catalysis aldehyde hydrogenation; Hydrogenation; Ionic liquids; Iron; Supported catalysts; Sustainable chemistry.

The catalytic hydrogenation of different aldehydes to the corresponding alcs. was investigated using an FeII hydride pincer complex as catalyst in the supported ionic liquid phase (SILP) reaction mode. Two different ionic liquids of the type [X4441][NTf2] with X=N or P were applied with mesoporous silica gel as support, which was coated first with a chemisorbed monolayer of the corresponding modified IL to remove acidic surface OH-groups and to prevent IL leaching. Quant. conversion with turn-over frequencies in the order of 1000 h-1 were obtained for various aromatic and heteroaromatic aldehydes and highly selective aldehyde reduction was observed also for substrates containing reducible C=C bonds. Aldehydes with longer aliphatic chains or cycloalkyl substituents, however, showed no conversion here, in contrast to a previous study with an imidazolium-based ionic liquid These differences were ascribed primarily to differences in substrate/ionic liquid interactions. Whereas [N4441][NTf2] and [P4441][NTf2] gave essentially identical results for different substrates in single-batch reactions, prolonged use of the catalyst in repeated reaction cycles lead to a quick drop-off in catalyst activity in [P4441][NTf2], but a continuous, quant. conversion in [N4441][NTf2].

European Journal of Inorganic Chemistry published new progress about Adsorption. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tumskiy, Roman S. published the artcileDocking and antibacterial activity of novel nontoxic 5-arylidenepyrimidine-triones as inhibitors of NDM-1 and MetAP-1, Related Products of isoquinoline, the main research area is docking antibacterial activity nontoxic arylidenepyrimidine trione inhibitor NDM MetAP; 5-arylidene barbituric acids; 5-arylidenepyrimidine-2,4,6(1H,3H,5H)-triones; ADMET; New Delhi metallo-β-lactamase-1; antibacterial activity; cytotoxicity; methionine aminopeptidase-1; molecular docking.

Antibiotic resistance, which occurs through the action of metallo-β-lactamases (NDM-1), is a serious problem in the treatment of infectious diseases. Therefore, the discovery of new NDM-1 inhibitors and promising antibacterial agents as inhibitors of alternative targets (MetAP-1) is important. In this study, a virtual library of 5-arylidene barbituric acids was created and mol. docking was performed for identification of novel possible inhibitors of NDM-1 and MetAP-1. Antibacterial activity (agar well-diffusion assay) and cytotoxicity (alamarBlue assay) of perspective compounds were evaluated. Pharmacokinetic profiles and mol. properties were predicted. We have identified possible novel inhibitors of NDM-1 and MetAP-1 with bacteriostatic activity, most of which are not cytotoxic and have potential excellent drug-likeness properties.

Future Medicinal Chemistry published new progress about Absorption. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem