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Showing 13 to 24 of 473 entries
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Preparation of oriented mesoporous carbon nano-filaments within the pores of anodic alumina membranes.

Journal of the American Chemical Society

Cott DJ, Petkov N, Morris MA, Platschek B, Bein T, Holmes JD.
PMID: 16551094
J Am Chem Soc. 2006 Mar 29;128(12):3920-1. doi: 10.1021/ja058441b.

Oriented mesoporous carbon nano-filaments were prepared as replicas of Fe-containing silica mesostructures deposited inside the channels of anodic alumina membranes (AAMs). Due to the confinement imposed by the channels of the AAMs, rather unusual mesophase structures showing "circular" or...

Literature in a Technological Age: Attitudes and values involved in a possible symbiosis between arts and science students are discussed.

Science (New York, N.Y.)

Henn TR.
PMID: 17755073
Science. 1958 Nov 28;128(3335):1325-9. doi: 10.1126/science.128.3335.1325.

No abstract available.

Color separation in forensic image processing.

Journal of forensic sciences

Berger CE, de Koeijer JA, Glas W, Madhuizen HT.
PMID: 16423231
J Forensic Sci. 2006 Jan;51(1):100-2. doi: 10.1111/j.1556-4029.2005.00020.x.

In forensic image processing, it is often important to be able to separate a feature from an interfering background or foreground, or to demonstrate colors within an image to be different from each other. In this study, a color...

Exploration of nanostructured channel systems with single-molecule probes.

Nature materials

Kirstein J, Platschek B, Jung C, Brown R, Bein T, Bräuchle C.
PMID: 17351614
Nat Mater. 2007 Apr;6(4):303-10. doi: 10.1038/nmat1861. Epub 2007 Mar 11.

Molecular movement in confined spaces is of broad scientific and technological importance in areas ranging from molecular sieving and membrane separation to active transport through ion channels. Whereas measurements of ensemble diffusion provide information about the overall behaviour of...

Vertical aluminophosphate molecular sieve crystals grown at inorganic-organic interfaces.

Science (New York, N.Y.)

Feng S, Bein T.
PMID: 17797221
Science. 1994 Sep 23;265(5180):1839-41. doi: 10.1126/science.265.5180.1839.

Tubular aluminophosphate molecular sieve crystals were grown at an organic interface with their channels (7 angstroms in cross section) vertical to the substrate. To induce surface nucleation and oriented growth of AIPO(4)-5 crystals, organophosphonate layers cross-linked with Zr(IV) were...

The first asymmetric organolithium tetramers with simple ether donor bases.

Chemical communications (Cambridge, England)

Tatic T, Meindl K, Henn J, Pandey SK, Stalke D.
PMID: 20502820
Chem Commun (Camb). 2010 Jul 07;46(25):4562-4. doi: 10.1039/c002504f. Epub 2010 May 26.

The donor-free trimethylsilylmethyllithium [LiCH(2)SiMe(3)](6) hexameric aggregate is for the first time broken up by simple ether donors such as diethyl ether (Et(2)O) and tert-butylmethyl ether ((t)BuOMe) to give the unprecedented asymmetric tetramers while the chelating dimethoxyethane (DME) gives the...

Probing the intrapore surface of phenyl-substituted nanoscale mesoporous silica-piezoelectric sorption measurements in thin films.

Langmuir : the ACS journal of surfaces and colloids

Darga A, Kecht J, Bein T.
PMID: 18001067
Langmuir. 2007 Dec 18;23(26):12915-22. doi: 10.1021/la701962b. Epub 2007 Nov 15.

The incorporation of organic moieties into siliceous frameworks leads to a wide variety of adsorbate-adsorbent interactions including weak van-der-Waal attractions as well as strong interactions such as Coulomb forces. Depending on the desired properties of such substituted highly porous...

Vertical columnar block-copolymer-templated mesoporous silica via confined phase transformation.

Journal of the American Chemical Society

Platschek B, Petkov N, Himsl D, Zimdars S, Li Z, Köhn R, Bein T.
PMID: 19053489
J Am Chem Soc. 2008 Dec 24;130(51):17362-71. doi: 10.1021/ja803102y.

An efficient method is described for the preparation of phase-pure columnar mesoporous silica nanosystems within the channels of anodic alumina membranes (AAM) via evaporation-induced self-assembly (EISA). Upon the basis of a systematic investigation of the effects of interfacial interactions...

Classification of event-related potentials associated with response errors in actors and observers based on autoregressive modeling.

The open medical informatics journal

Vasios CE, Ventouras EM, Matsopoulos GK, Karanasiou I, Asvestas P, Uzunoglu NK, Van Schie HT, de Bruijn ER.
PMID: 19587809
Open Med Inform J. 2009 May 15;3:32-43. doi: 10.2174/1874431100903010032.

Event-Related Potentials (ERPs) provide non-invasive measurements of the electrical activity on the scalp related to the processing of stimuli and preparation of responses by the brain. In this paper an ERP-signal classification method is proposed for discriminating between ERPs...

Left ventricular hypertrophy may be transient in the emergency department.

The western journal of emergency medicine

Shoenberger JM, Voskanian S, Johnson S, Ahern T, Henderson SO.
PMID: 19718372
West J Emerg Med. 2009 Aug;10(3):140-3.

BACKGROUND: While research has established that the bedside electrocardiogram (ECG) is an insensitive test for the presence or absence of left ventricular hypertrophy (LVH), the finding, when present, is thought to be reproducible.OBJECTIVE: To assess the reproducibility of serial...

Exceptional ion-exchange selectivity in a flexible open framework lanthanum(III)tetrakisphosphonate.

Journal of the American Chemical Society

Plabst M, McCusker LB, Bein T.
PMID: 19921820
J Am Chem Soc. 2009 Dec 23;131(50):18112-8. doi: 10.1021/ja904636y.

The flexible, anionic, open-framework material NaLa[(PO(3)H)(2)CH-C(6)H(4)-CH(PO(3)H)(2)].4H(2)O (NaLa(H(4)L)) exhibits an exceptional selectivity for monovalent metal cations. This study elucidates the relationship between the ion-exchange behavior and the framework flexibility of this recently discovered material. The exchange of the Na(+) ions...

Exceptionally small colloidal zeolites templated by Pd and Pt amines.

Langmuir : the ACS journal of surfaces and colloids

Kecht J, Mintova S, Bein T.
PMID: 18312007
Langmuir. 2008 Apr 15;24(8):4310-5. doi: 10.1021/la7033033. Epub 2008 Mar 01.

Monomodal colloidal suspensions containing EDI-type zeolite nanocrystals with sizes below 20 nm were prepared via a palladium and platinum amine templating approach. The role of the metal complexes in zeolite crystallization is elucidated using spectroscopic and microscopic characterization techniques...

Showing 13 to 24 of 473 entries