Search Results - "Petersen, Johannes F."

Surface modification of PAMAM dendrimer improves its biocompatibility by Ciolkowski, Michal, PhD, Petersen, Johannes F., MSc, Ficker, Mario, MSc, Janaszewska, Anna, PhD, Christensen, Jørn B., Prof, Klajnert, Barbara, DSc, Bryszewska, Maria, Prof

“…Abstract Modification of dendrimer surface groups is one of the methods available to obtain compounds characterized by reduced toxicity. This article reports…”
Get full text

Modified PAMAM dendrimer with 4-carbomethoxypyrrolidone surface groups reveals negligible toxicity against three rodent cell-lines by Janaszewska, Anna, PhD, Ciolkowski, Michal, PhD, Wróbel, Dominika, PhD, Petersen, Johannes F., MSc, Ficker, Mario, MSc, Christensen, Jørn B., Prof, Bryszewska, Maria, Prof, Klajnert, Barbara, DSc

“…Abstract Modification of the surface groups of dendrimers is one of the methods to improve their biocompatibility. This article presents results of experiments…”
Get full text

PAMAM dendrimer with 4-carbomethoxypyrrolidone— In vitro assessment of neurotoxicity by Janaszewska, Anna, PhD, Studzian, Maciej, MSc, Petersen, Johannes F., MSc, Ficker, Mario, MSc, Christensen, Jørn B., PhD, Klajnert-Maculewicz, Barbara

“…Abstract Cytotoxicity of cationic amino-terminated PAMAM dendrimer and modified PAMAM-pyrrolidone dendrimer was compared. LDH assay and cell visualization…”
Get full text

Guest-Host Chemistry with Dendrimers—Binding of Carboxylates in Aqueous Solution by Ficker, Mario, Petersen, Johannes F, Hansen, Jon S, Christensen, Jørn B

“…Recognition and binding of anions in water is difficult due to the ability of water molecules to form strong hydrogen bonds and to solvate the anions. The…”
Get full text

Modified PAMAM dendrimer with 4-carbomethoxypyrrolidone surface groups-its uptake, efflux, and location in a cell by Janaszewska, Anna, Studzian, Maciej, Petersen, Johannes F., Ficker, Mario, Paolucci, Valentina, Christensen, Jørn B., Tomalia, Donald A., Klajnert-Maculewicz, Barbara

“…[Display omitted] •PAMAM-pyrrolidone dendrimers are characterized by strong intrinsic blue fluorescence.•PAMAM-pyrrolidone dendrimers fluorescence is many…”
Get full text

Synthesis and properties of chiral internally branched PAMAM-dendrimers by Petersen, Johannes F., Tortzen, Christian G., Pittelkow, Michael, Christensen, Jørn B.

“…Improved synthetic methodology for the synthesis of internally branched chiral poly(amidoamine) (PAMAM) dendrons and dendrimers has been developed and the…”
Get full text

Synthesis of Covalently Linked Oligo(phenyleneethynylene) Wires Incorporating Dithiafulvene Units: Redox‐Active “H‐Cruciforms” by Jørgensen, Frederik Præstholm, Petersen, Johannes F., Andersen, Cecilie Lindholm, Skov, Anders B., Jevric, Martyn, Hammerich, Ole, Nielsen, Mogens Brøndsted

“…Controlled alignment and self‐assembly of molecular wires is one of the challenges in the field of molecular electronics. Here, we take an approach by which…”
Get full text

Front Cover: Synthesis of Covalently Linked Oligo(phenyleneethynylene) Wires Incorporating Dithiafulvene Units: Redox‐Active “H‐Cruciforms” (Eur. J. Org. Chem. 9/2017) by Jørgensen, Frederik Præstholm, Petersen, Johannes F., Andersen, Cecilie Lindholm, Skov, Anders B., Jevric, Martyn, Hammerich, Ole, Nielsen, Mogens Brøndsted

“…The cover picture shows H‐cruciform‐shaped molecules containing an OPV2‐extended tetrathiafulvalene with orthogonally situated OPE3 or OPE5 units, which are of…”
Get full text

Copper(II) Complexes with 4‑Carbomethoxypyrrolidone Functionalized PAMAM-Dendrimers: An EPR Study by Ottaviani, Maria Francesca, Cangiotti, Michela, Fattori, Alberto, Coppola, Concetta, Lucchi, Susanna, Ficker, Mario, Petersen, Johannes F, Christensen, Jørn B

“…The internal flexibility and interacting ability of PAMAM-dendrimers having 4-carbomethoxypyrrolidone-groups as surface groups (termed Gn-Pyr), which may be…”
Get full text

Phosphite-mediated conversion of benzaldehydes into stilbenes via umpolung through a dioxaphospholane intermediate by Petersen, Johannes F., Tortzen, Christian G., Jørgensen, Frederik Præstholm, Parker, Christian R., Nielsen, Mogens Brøndsted

“…[Display omitted] The phosphite-mediated coupling of two benzaldehydes into 2,2,2-triethoxy-1,3,2-dioxaphospholanes was investigated using 13C NMR spectroscopy…”
Get full text

Study of the Complexation of Oxacillin in 1‑(4-Carbomethoxypyrrolidone)-Terminated PAMAM Dendrimers by Hansen, Jon S, Ficker, Mario, Petersen, Johannes F, Nielsen, Bjarne E, Gohar, Saira, Christensen, Jørn B

“…The complexation of oxacillin to three generations of 1-(4-carbomethoxypyrrolidone)-terminated PAMAM dendrimers was studied with NMR in CD3OD and CDCl3. The…”
Get full text

Hydrogenation of Aromatic Nitro Compounds with an Inexpensive and Efficient CuSO4/CoCl2 Catalyst Prepared in situ using NaBH4 as the Hydrogen Source by Ficker, Mario, Petersen, Johannes F., Hansen, Jon S., Christensen, Jørn B.

“…Organic Preparations and Procedures International Hydrogenation of Aromatic Nitro Compounds with an Inexpensive and Efficient CuSO4/CoCl2 Catalyst Prepared in…”
Get full text

Towards Storage of Solar Energy in Photochromic Molecules: Benzannulation of the Dihydroazulene/Vinylheptafulvene Couple by Skov, Anders B., Petersen, Johannes F., Elm, Jonas, Frandsen, Benjamin N., Santella, Marco, Kilde, Martin Drøhse, Kjaergaard, Henrik G., Mikkelsen, Kurt V., Nielsen, Mogens Brøndsted

“…One challenge in the development of molecular photoswitches for solar energy storage is to increase the energy of the isomer formed upon irradiation. This work…”
Get full text

Hydrogenation of Aromatic Nitro Compounds with an Inexpensive and Efficient CuSO 4 /CoCl 2 Catalyst Prepared in situ using NaBH 4 as the Hydrogen Source by Ficker, Mario, Petersen, Johannes F., Hansen, Jon S., Christensen, Jørn B.

Get full text