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Showing 1 to 12 of 83 entries
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Zeitschrift fur Kinder- und Jugendpsychiatrie und Psychotherapie

Hemminger U.
PMID: 26212651
Z Kinder Jugendpsychiatr Psychother. 2006 Jul;34(4):315. doi: 10.1024/1422-4917.34.4.315.

No abstract available.

Fluoride-induced modulation of ionic transport in asymmetric nanopores functionalized with "caged" fluorescein moieties.

Nanoscale

Ali M, Ahmed I, Ramirez P, Nasir S, Cervera J, Niemeyer CM, Ensinger W.
PMID: 27050623
Nanoscale. 2016 Apr 28;8(16):8583-90. doi: 10.1039/c6nr00292g. Epub 2016 Apr 06.

We demonstrate experimentally and theoretically a nanofluidic fluoride sensing device based on a single conical pore functionalized with "caged" fluorescein moieties. The nanopore functionalization is based on an amine-terminated fluorescein whose phenolic hydroxyl groups are protected with tert-butyldiphenylsilyl (TBDPS)...

Fabrication of single cylindrical Au-coated nanopores with non-homogeneous fixed charge distribution exhibiting high current rectifications.

ACS applied materials & interfaces

Nasir S, Ali M, Ramirez P, Gómez V, Oschmann B, Muench F, Tahir MN, Zentel R, Mafe S, Ensinger W.
PMID: 25051046
ACS Appl Mater Interfaces. 2014 Aug 13;6(15):12486-94. doi: 10.1021/am502419j. Epub 2014 Jul 30.

We designed and characterized a cylindrical nanopore that exhibits high electrochemical current rectification ratios at low and intermediate electrolyte concentrations. For this purpose, the track-etched single cylindrical nanopore in polymer membrane was coated with a gold (Au) layer via...

Note: Sample holder with open area for increased deposition rate in plasma immersion ion implantation and deposition.

The Review of scientific instruments

Flege S, Hatada R, Derepa A, Dietz C, Ensinger W, Baba K.
PMID: 28964196
Rev Sci Instrum. 2017 Sep;88(9):096106. doi: 10.1063/1.4995080.

A sample holder with a large open area offers several benefits when used in the process of plasma immersion ion implantation and deposition in which the plasma is generated by a high voltage applied to the sample holder: The...

Crystallization in low-energy deposition of titanium ions.

Colloids and surfaces. B, Biointerfaces

Kiuchi M, Matsumoto T, Yoshikawa T, Goto S, Ensinger W.
PMID: 10967501
Colloids Surf B Biointerfaces. 2000 Dec 30;19(3):269-273. doi: 10.1016/s0927-7765(00)00165-x.

To investigate crystallization in the ion beam deposition process, titanium ions were deposited on silicon wafers at 105 and 55 eV. As titanium is an active metal, titanium compounds are formed by absorbing backfilled or residual gas. At energy...

Assessment of multipathway exposure of small children to PAH.

Environmental toxicology and pharmacology

Vyskocil A, Fiala Z, Chénier V, Krajak L, Ettlerova E, Bukac J, Viau C, Emminger S.
PMID: 10867370
Environ Toxicol Pharmacol. 2000 Jan 01;8(2):111-118. doi: 10.1016/s1382-6689(00)00032-6.

The aim of study was to assess the uptake of polycyclic aromatic hydrocarbons (PAH) by children living in a city and its effect on 1-hydroxypyrene (1-OHP) excretion. Two groups of children (n=11 and 13; 3-6 years old) were chosen:...

Role of cytokinins in carnation flower senescence.

Plant physiology

Eisinger W.
PMID: 16659922
Plant Physiol. 1977 Apr;59(4):707-9. doi: 10.1104/pp.59.4.707.

Stem and leaf tissues of carnation (Dianthus caryophyllus) plants appear to contain a natural antisenescence factor since removal of most of these tissues from cut carnation flowers hastened their senescence. However, kinetin (5-10 mug/ml) significantly delayed senescence of flowers...

Modifying the surface charge of single track-etched conical nanopores in polyimide.

Nanotechnology

Ali M, Schiedt B, Healy K, Neumann R, Ensinger W.
PMID: 21730744
Nanotechnology. 2008 Feb 27;19(8):085713. doi: 10.1088/0957-4484/19/8/085713. Epub 2008 Feb 04.

Chemical modification of nanopore surfaces is of great interest as it means that the surface composition is no longer fixed by the choice of substrate material, even to the point where large biomolecules can be attached to the pore...

Cerium (IV) oxide nanotubes prepared by low temperature deposition at normal pressure.

Nanotechnology

Boehme M, Fu G, Ionescu E, Ensinger W.
PMID: 21212481
Nanotechnology. 2011 Feb 11;22(6):065602. doi: 10.1088/0957-4484/22/6/065602. Epub 2011 Jan 07.

This paper reports the synthesis of cerium dioxide nanotubes (CeNTs) by electroless deposition using ion-track-etched polycarbonate templates. To achieve nanotubes with thin walls and small surface roughness the tubes were generated by a several-step-containing procedure under aqueous conditions. The...

Analytical characterization of BC(x)N(y) films generated by LPCVD with triethylamine borane.

Analytical and bioanalytical chemistry

Baake O, Hoffmann PS, Kosinova ML, Klein A, Pollakowski B, Beckhoff B, Fainer NI, Trunova VA, Ensinger W.
PMID: 20607521
Anal Bioanal Chem. 2010 Sep;398(2):1077-84. doi: 10.1007/s00216-010-3965-4. Epub 2010 Jul 06.

Triethylamine borane (TEAB) and He, N(2) or NH(3) were applied as additional reaction gases in the production of BC(x)N(y) layers by low-pressure chemical vapor deposition (LPCVD). These layers were deposited on Si(100) wafers and characterized chemically by X-ray photoelectron...

Fabrication and functionalization of single asymmetric nanochannels for electrostatic/hydrophobic association of protein molecules.

Nanotechnology

Ali M, Bayer V, Schiedt B, Neumann R, Ensinger W.
PMID: 21836318
Nanotechnology. 2008 Dec 03;19(48):485711. doi: 10.1088/0957-4484/19/48/485711. Epub 2008 Nov 12.

We have developed a facile and reproducible method for surfactant-controlled track-etching and chemical functionalization of single asymmetric nanochannels in PET (polyethylene terephthalate) membranes. Carboxyl groups present on the channel surface were converted into pentafluorophenyl esters using EDC/PFP (N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride/pentafluorophenol)...

Potassium-induced ionic conduction through a single nanofluidic pore modified with acyclic polyether derivative.

Analytica chimica acta

Ali M, Ahmed I, Nasir S, Duznovic I, Niemeyer CM, Ensinger W.
PMID: 30322544
Anal Chim Acta. 2018 Dec 18;1039:132-139. doi: 10.1016/j.aca.2018.07.056. Epub 2018 Jul 25.

Solid-state nanofluidic pores have been attracting considerable attention of scientific community because of their structural and chemical resemblance with biological ion channels for mimicking biological processes in living systems. Compared to ion channels, synthetic nanopores exhibit high stability, control...

Showing 1 to 12 of 83 entries