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Showing 1 to 12 of 105 entries
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Phase separation in star-polymer-colloid mixtures.

Physical review. E, Statistical, nonlinear, and soft matter physics

Dzubiella J, Jusufi A, Likos CN, von Ferber C, Löwen H, Stellbrink J, Allgaier J, Richter D, Schofield AB, Smith PA, Poon WC, Pusey PN.
PMID: 11461208
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Jul;64(1):010401. doi: 10.1103/PhysRevE.64.010401. Epub 2001 Jun 21.

We examine the demixing transition in star-polymer-colloid mixtures for star arm numbers f=2,6,16,32 and different star-polymer-colloid size ratios 0.18< or =q< or =0.50. Theoretically, we solve the thermodynamically self-consistent Rogers-Young integral equations for binary mixtures using three effective pair...

The intracellular detection of MIP-1beta enhances the capacity to detect IFN-gamma mediated HIV-1-specific CD8 T-cell responses in a flow cytometric setting providing a sensitive alternative to the ELISPOT.

AIDS research and therapy

Kutscher S, Dembek CJ, Allgayer S, Heltai S, Stadlbauer B, Biswas P, Nozza S, Tambussi G, Bogner JR, Stellbrink HJ, Goebel FD, Lusso P, Tinelli M, Poli G, Erfle V, Pohla H, Malnati M, Cosma A.
PMID: 18837993
AIDS Res Ther. 2008 Oct 06;5:22. doi: 10.1186/1742-6405-5-22.

BACKGROUND: T-cell mediated immunity likely plays an important role in controlling HIV-1 infection and progression to AIDS. Several candidate vaccines against HIV-1 aim at stimulating cellular immune responses, either alone or together with the induction of neutralizing antibodies, and...

Anchoring vs bridging: new findings on polymer additives in bicontinuous microemulsions.

Langmuir : the ACS journal of surfaces and colloids

Maccarrone S, Allgaier J, Frielinghaus H, Richter D.
PMID: 24502358
Langmuir. 2014 Feb 18;30(6):1500-5. doi: 10.1021/la404354w. Epub 2014 Feb 06.

We show for the first time the effect of telechelic polymers as additives in bicontinuous microemulsions. We combined macroscopic observations of the phase behavior with microscopic measurements of the structure by small-angle neutron scattering (SANS) to recover the two...

CXCR4 Expression and Treatment with SDF-1α or Plerixafor Modulate Proliferation and Chemosensitivity of Colon Cancer Cells.

Translational oncology

Heckmann D, Maier P, Laufs S, Wenz F, Zeller WJ, Fruehauf S, Allgayer H.
PMID: 23544165
Transl Oncol. 2013 Apr;6(2):124-32. doi: 10.1593/tlo.12268. Epub 2013 Apr 01.

BACKGROUND: Signaling through stromal cell-derived factor-1α (SDF-1α), strongly secreted by bone marrow stromal cells and the CXC chemokine receptor 4 (CXCR4) exposed on tumor cells has pivotal roles in proliferation, metastasis, and tumor cell "dormancy." Dormancy is associated with...

Nanocomposites of Highly Monodisperse Encapsulated Superparamagnetic Iron Oxide Nanocrystals Homogeneously Dispersed in a Poly(ethylene Oxide) Melt.

ACS nano

Feld A, Koll R, Fruhner LS, Krutyeva M, Pyckhout-Hintzen W, Weiß C, Heller H, Weimer A, Schmidtke C, Appavou MS, Kentzinger E, Allgaier J, Weller H.
PMID: 28248494
ACS Nano. 2017 Apr 25;11(4):3767-3775. doi: 10.1021/acsnano.6b08441. Epub 2017 Mar 21.

Nanocomposite materials based on highly stable encapsulated superparamagnetic iron oxide nanocrystals (SPIONs) were synthesized and characterized by scattering methods and transmission electron microscopy (TEM). The combination of advanced synthesis and encapsulation techniques using different diblock copolymers and the thiol-ene...

Sensing Polymer Chain Dynamics through Ring Topology: A Neutron Spin Echo Study.

Physical review letters

Gooßen S, Krutyeva M, Sharp M, Feoktystov A, Allgaier J, Pyckhout-Hintzen W, Wischnewski A, Richter D.
PMID: 26551826
Phys Rev Lett. 2015 Oct 02;115(14):148302. doi: 10.1103/PhysRevLett.115.148302. Epub 2015 Sep 28.

Using neutron spin echo spectroscopy, we show that the segmental dynamics of polymer rings immersed in linear chains is completely controlled by the host. This transforms rings into ideal probes for studying the entanglement dynamics of the embedding matrix....

Harvey Cushing Treated the First Known Patient With Carney Complex.

Journal of the Endocrine Society

Tsay CJ, Stratakis CA, Faucz FR, London E, Stathopoulou C, Allgauer M, Quezado M, Dagradi T, Spencer DD, Lodish M.
PMID: 29264456
J Endocr Soc. 2017 Sep 28;1(10):1312-1321. doi: 10.1210/js.2017-00283. eCollection 2017 Oct 01.

CONTEXT: Carney complex (CNC) is a syndrome characterized by hyperplasia of endocrine organs and may present with clinical features of Cushing syndrome and acromegaly due to functional adrenal and pituitary gland tumors. CNC has been linked to mutations in...

Polymer Chain Conformation and Dynamical Confinement in a Model One-Component Nanocomposite.

Physical review letters

Mark C, Holderer O, Allgaier J, Hübner E, Pyckhout-Hintzen W, Zamponi M, Radulescu A, Feoktystov A, Monkenbusch M, Jalarvo N, Richter D.
PMID: 29341730
Phys Rev Lett. 2017 Jul 28;119(4):047801. doi: 10.1103/PhysRevLett.119.047801. Epub 2017 Jul 26.

We report a neutron-scattering investigation on the structure and dynamics of a single-component nanocomposite based on SiO_{2} particles that were grafted with polyisoprene chains at the entanglement limit. By skillful labeling, we access both the monomer density in the...

Corona Health-A Study- and Sensor-Based Mobile App Platform Exploring Aspects of the COVID-19 Pandemic.

International journal of environmental research and public health

Beierle F, Schobel J, Vogel C, Allgaier J, Mulansky L, Haug F, Haug J, Schlee W, Holfelder M, Stach M, Schickler M, Baumeister H, Cohrdes C, Deckert J, Deserno L, Edler JS, Eichner FA, Greger H, Hein G, Heuschmann P, John D, Kestler HA, Krefting D, Langguth B, Meybohm P, Probst T, Reichert M, Romanos M, Störk S, Terhorst Y, Weiß M, Pryss R.
PMID: 34299846
Int J Environ Res Public Health. 2021 Jul 10;18(14). doi: 10.3390/ijerph18147395.

Physical and mental well-being during the COVID-19 pandemic is typically assessed via surveys, which might make it difficult to conduct longitudinal studies and might lead to data suffering from recall bias. Ecological momentary assessment (EMA) driven smartphone apps can...

Temporal mode transformations by sequential time and frequency phase modulation for applications in quantum information science.

Optics express

Ashby J, Thiel V, Allgaier M, d'Ornellas P, Davis AOC, Smith BJ.
PMID: 33379651
Opt Express. 2020 Dec 07;28(25):38376-38389. doi: 10.1364/OE.410371.

Controlling the temporal mode shape of quantum light pulses has wide ranging application to quantum information science and technology. Techniques have been developed to control the bandwidth, allow shifting in the time and frequency domains, and perform mode-selective beam-splitter-like...

Self-Similar Dynamics of Large Polymer Rings: A Neutron Spin Echo Study.

Physical review letters

Kruteva M, Monkenbusch M, Allgaier J, Holderer O, Pasini S, Hoffmann I, Richter D.
PMID: 33337173
Phys Rev Lett. 2020 Dec 04;125(23):238004. doi: 10.1103/PhysRevLett.125.238004.

This work clarifies the self-similar dynamics of large polymer rings using pulsed-field gradient nuclear magnetic resonance and neutron spin echo spectroscopy. We find center of mass diffusion taking place in three dynamic regimes starting (i) with a strongly subdiffusive...

MARK4 controls ischaemic heart failure through microtubule detyrosination.

Nature

Yu X, Chen X, Amrute-Nayak M, Allgeyer E, Zhao A, Chenoweth H, Clement M, Harrison J, Doreth C, Sirinakis G, Krieg T, Zhou H, Huang H, Tokuraku K, Johnston DS, Mallat Z, Li X.
PMID: 34040253
Nature. 2021 Jun;594(7864):560-565. doi: 10.1038/s41586-021-03573-5. Epub 2021 May 26.

Myocardial infarction is a major cause of premature death in adults. Compromised cardiac function after myocardial infarction leads to chronic heart failure with systemic health complications and a high mortality rate

Showing 1 to 12 of 105 entries