0000000000905034

AUTHOR

Hans G. Börner

showing 4 related works from this author

Modular approach toward bioactive fiber meshes carrying oligosaccharides

2010

A modular strategy toward (bio)functional nanofiber meshes by electrospinning is described. In contrast to commonly established, multistep protocols or complex spinning setups, a straightforward single-step procedure is investigated to obtain polymer nanofibers with pentafluorophenyl (Pfp)-activated esters on the surface. The aim was to electrospin, for the first time, poly(pentafluorophenyl methacrylate) (PPfpMA) and PPfpMA/poly(epsilon-caprolactone) (PCL) blends, resulting in reactive nanofibers with fiber surfaces that can be functionalized with suitable bioactive entities. While PPfpMA fibers are brittle the spinning of PCL/PPfpMA blends leads to improved mechanical stability of the obt…

chemistry.chemical_classificationMaterials sciencePolymers and PlasticsOrganic ChemistryPolymerMethacrylateElectrospinningInorganic Chemistrychemistry.chemical_compoundchemistryChemical engineeringNanofiberPolycaprolactoneMaterials ChemistryOrganic chemistryFiberPolymer blendSpinning
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Reply to Comment on Measurement of quantum states of neutrons in the Earth's gravitational field

2003

Physical review / D 68(10), 108702 (2003). doi:10.1103/PhysRevD.68.108702

PhysicsPhysics::General PhysicsNuclear and High Energy PhysicsQuantum geometry03.65.TaThermal quantum field theory010308 nuclear & particles physics[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]Quantum dynamicsQuantum numberquantum theory53001 natural sciencesGeneral Relativity and Quantum CosmologyQuantization (physics)Gravitational fieldQuantum stateQuantum mechanics0103 physical sciencesQuantum gravityddc:530010306 general physics
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Measurement of quantum states of neutrons in the Earth's gravitational field

2003

The lowest stationary quantum state of neutrons in the Earth's gravitational field is identified in the measurement of neutron transmission between a horizontal mirror on the bottom and an absorber/scatterer on top. Such an assembly is not transparent for neutrons if the absorber height is smaller than the ``height'' of the lowest quantum state.

Nuclear and High Energy PhysicsNeutron transportAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryFOS: Physical sciences01 natural sciencesHigh Energy Physics - Phenomenology (hep-ph)Gravitational fieldQuantum stateQuantum mechanics0103 physical sciencesNeutronQuantum field theory010306 general physicsNuclear ExperimentPhysics03.65.Ta010308 nuclear & particles physics[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]FermionQuantum numberquantum theoryneutron reflectionComputational physicsHigh Energy Physics - Phenomenologyneutron absorptionquantum gravity[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Quantum gravity
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Topology-Dependent Swichability of Peptide Secondary Structures in Bioconjugates with Complex Architectures

2013

Peptide sequences, which exhibit a reversible pH-responsive coil to α-helix secondary structure transition, are conjugated to polymer precursors to yield linear AB and graft ABA peptide-poly(ethylene oxide) conjugates. While the PEO B-block is comparable, the conjugates differ in topologies of the peptide bearing A-blocks. The influences of topology on the structure transitions in the peptide segments are investigated, comparing linear AB-bioconjugates with graft ABA-bioconjugates having multiple peptide segments combined in star or pom-pom topologies.

chemistry.chemical_classificationPolymers and PlasticsEthylene oxideOrganic ChemistryPeptidePolymerConjugated systemMicroscopy Atomic ForceTopologyCombinatorial chemistryProtein Structure SecondaryPolyethylene Glycolschemistry.chemical_compoundchemistryMaterials ChemistrySelf-assemblyPeptidesProtein secondary structureTopology (chemistry)ConjugateMacromolecular Rapid Communications
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