Search Results - "Frey Wolfgang"

Electroporation-based applications in biotechnology by Kotnik, Tadej, Frey, Wolfgang, Sack, Martin, Haberl Meglič, Saša, Peterka, Matjaž, Miklavčič, Damijan

“…Highlights • We review four promising biotechnological applications of electroporation. • Reversible electroporation is an efficient method for genetic…”
Get full text

Dynamic contrast-enhanced photoacoustic imaging using photothermal stimuli-responsive composite nanomodulators by Chen, Yun-Sheng, Yoon, Soon Joon, Frey, Wolfgang, Dockery, Mary, Emelianov, Stanislav

“…Molecular photoacoustic imaging has shown great potential in medical applications; its sensitivity is normally in pico-to-micro-molar range, dependent on…”
Get full text

Double Regioselective Asymmetric C‐Allylation of Isoxazolinones: Iridium‐Catalyzed N‐Allylation Followed by an Aza‐Cope Rearrangement by Rieckhoff, Stefan, Meisner, Jan, Kästner, Johannes, Frey, Wolfgang, Peters, René

“…Isoxazolinones are biologically and synthetically interesting densely functionalized heterocycles, which for a long time were not accessible in enantioenriched…”
Get full text

Regioselective Catalytic Asymmetric C-Alkylation of Isoxazolinones by a Base-Free Palladacycle-Catalyzed Direct 1,4-Addition by Hellmuth, Tina, Frey, Wolfgang, Peters, René

“…Isoxazolinones constitute a class of heterocycles utilized for the development of novel drug candidates. The cyclic oxime ester motif is also synthetically…”
Get full text

Ruthenium-Catalyzed Synthesis of 2H‑Azirines from Isoxazolinones by Rieckhoff, Stefan, Titze, Marvin, Frey, Wolfgang, Peters, René

“…2H-Azirines are synthetically versatile, highly strained, three-membered heterocycles containing an imino double bond. We report their efficient Ru-catalyzed…”
Get full text

Silica-Coated Gold Nanorods as Photoacoustic Signal Nanoamplifiers by Chen, Yun-Sheng, Frey, Wolfgang, Kim, Seungsoo, Kruizinga, Pieter, Homan, Kimberly, Emelianov, Stanislav

“…Photoacoustic signal generation by metal nanoparticles relies on the efficient conversion of light to heat, its transfer to the environment, and the production…”
Get full text

Effect of nanosecond pulsed electric field treatment on cell proliferation of microalgae by Buchmann, Leandro, Frey, Wolfgang, Gusbeth, Christian, Ravaynia, Paolo S., Mathys, Alexander

“…[Display omitted] •Innovative upstream process for photoautotrophic microalgae.•nsPEF induced abiotic subcellular stress.•Increased cell proliferation after…”
Get full text

Catalytic Enantioselective Total Synthesis of the Picrotoxane Alkaloids (−)-Dendrobine, (−)-Mubironine B, and (−)-Dendroxine by Guo, Lei, Frey, Wolfgang, Plietker, Bernd

“…A concise enantioselective total synthesis of three sesquiterpenoid alkaloids(−)-dendrobine, (−)-mubironine B, and (−)-dendroxineis presented, which…”
Get full text

Pulsed electric field assisted extraction of intracellular valuables from microalgae by Goettel, Martina, Eing, Christian, Gusbeth, Christian, Straessner, Ralf, Frey, Wolfgang

“…This paper discusses the application of pulse electric field (PEF) treatment for the cell disintegration of the fresh water microalgae Auxenochlorella…”
Get full text

Extraction of valuable compounds from Arthrospira platensis using pulsed electric field treatment by Jaeschke, Débora Pez, Mercali, Giovana Domeneghini, Marczak, Ligia Damasceno Ferreira, Müller, Georg, Frey, Wolfgang, Gusbeth, Christian

“…•PEF-treatment induced a damage of the cell structure.•After PEF-treatment, an incubation time was needed for the extraction.•A purified phycocyanin-protein…”
Get full text

Enhanced thermal stability of silica-coated gold nanorods for photoacoustic imaging and image-guided therapy by Chen, Yun-Sheng, Frey, Wolfgang, Kim, Seungsoo, Homan, Kimberly, Kruizinga, Pieter, Sokolov, Konstantin, Emelianov, Stanislav

“…Photothermal stability and, therefore, consistency of both optical absorption and photoacoustic response of the plasmonic nanoabsorbers is critical for…”
Get full text

Origin and Use of Hydroxyl Group Tolerance in Cationic Molybdenum Imido Alkylidene N‐Heterocyclic Carbene Catalysts by Schowner, Roman, Elser, Iris, Benedikter, Mathis, Momin, Mohasin, Frey, Wolfgang, Schneck, Tanja, Stöhr, Laura, Buchmeiser, Michael R.

“…The origin of hydroxyl group tolerance in neutral and especially cationic molybdenum imido alkylidene N‐heterocyclic carbene (NHC) complexes has been…”
Get full text

Cationic Group VI Metal Imido Alkylidene N‐Heterocyclic Carbene Nitrile Complexes: Bench‐Stable, Functional‐Group‐Tolerant Olefin Metathesis Catalysts by Benedikter, Mathis J., Musso, Janis V., Frey, Wolfgang, Schowner, Roman, Buchmeiser, Michael R.

“…Despite their excellent selectivities and activities, Mo‐and W‐based catalysts for olefin metathesis have not gained the same widespread use as Ru‐based…”
Get full text

A sodium bis(perfluoropinacol) borate-based electrolyte for stable, high-performance room temperature sodium-sulfur batteries based on sulfurized poly(acrylonitrile) by Murugan, Saravanakumar, Klostermann, Sina V., Frey, Wolfgang, Kästner, Johannes, Buchmeiser, Michael R.

“…•A facile one-pot synthesis of sodium bis(pinacol) borate for room temperature sodium-sulfur batteries.•Pinacolborate salt has high resistance towards…”
Get full text

N-Heterocyclic Carbene, High Oxidation State Molybdenum Alkylidene Complexes: Functional-Group-Tolerant Cationic Metathesis Catalysts by Buchmeiser, Michael R., Sen, Suman, Unold, Jörg, Frey, Wolfgang

“…We synthesized the first N‐heterocyclic carbene (NHC) complexes of Schrock’s molybdenum imido alkylidene bis(triflate) complexes. Unlike existing bis(triflate)…”
Get full text

Asymmetric Cascade Reaction to Allylic Sulfonamides from Allylic Alcohols by Palladium(II)/Base-Catalyzed Rearrangement of Allylic Carbamates by Bauer, Johannes Moritz, Frey, Wolfgang, Peters, René

“…A regio‐ and enantioselective tandem reaction is reported capable of directly transforming readily accessible achiral allylic alcohols into chiral…”
Get full text

Polyfunctional Bis‐Lewis‐Acid‐/Bis‐Triazolium Catalysts for Stereoselective 1,4‐Additions of 2‐Oxindoles to Maleimides by Schmid, Juliane, Junge, Thorsten, Lang, Johannes, Frey, Wolfgang, Peters, René

“…Achieving enzyme‐like catalytic activity and stereoselectivity without the typically high substrate specificity of enzymes is a challenge in the development of…”
Get full text

Comprehensive Spectroscopic Determination of the Crystal Field Splitting in an Erbium Single-Ion Magnet by Rechkemmer, Yvonne, Fischer, Julia E, Marx, Raphael, Dörfel, María, Neugebauer, Petr, Horvath, Sebastian, Gysler, Maren, Brock-Nannestad, Theis, Frey, Wolfgang, Reid, Michael F, van Slageren, Joris

“…The electronic structure of a novel lanthanide-based single-ion magnet, {C­(NH2)3}5[Er­(CO3)4]·11H2O, was comprehensively studied by means of a large number of…”
Get full text

Synchronizing Steric and Electronic Effects in {RuII(NNNN,P)} Complexes: The Catalytic Dehydrative Alkylation of Anilines by Using Alcohols as a Case Study by Weickmann, Daniel, Frey, Wolfgang, Plietker, Bernd

“…A series of new hexacoordinated {RuII(NNNN,P)} complexes was prepared from [RuCl2(R3P)3]. Their structure was determined by X‐ray crystallography. The…”
Get full text

Incubation time after pulsed electric field treatment of microalgae enhances the efficiency of extraction processes and enables the reduction of specific treatment energy by Silve, Aude, Kian, Chua Boon, Papachristou, Ioannis, Kubisch, Christin, Nazarova, Natalja, Wüstner, Rüdiger, Leber, Klaus, Strässner, Ralf, Frey, Wolfgang

“…[Display omitted] •Microalgae incubation after PEF-treatment improves water-soluble components release.•Microalgae incubation after PEF-treatment improves…”
Get full text