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Showing 1 to 12 of 257 entries
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Solvatochromic rotaxane molecular shuttles.

Chemical communications (Cambridge, England)

Günbaş DD, Zalewski L, Brouwer AM.
PMID: 21431115
Chem Commun (Camb). 2011 May 07;47(17):4977-9. doi: 10.1039/c0cc05755j. Epub 2011 Mar 22.

A strongly fluorescent bistable rotaxane is described in which the relative position of the macrocyclic ring with respect to a solvatochromic fluorophore gives a strong response in the spectral domain.

Photoinduction of fast, reversible translational motion in a hydrogen-bonded molecular shuttle.

Science (New York, N.Y.)

Brouwer AM, Frochot C, Gatti FG, Leigh DA, Mottier L, Paolucci F, Roffia S, Wurpel GW.
PMID: 11251112
Science. 2001 Mar 16;291(5511):2124-8. doi: 10.1126/science.1057886. Epub 2001 Feb 22.

A rotaxane is described in which a macrocycle moves reversibly between two hydrogen-bonding stations after a nanosecond laser pulse. Observation of transient changes in the optical absorption spectrum after photoexcitation allows direct quantitative monitoring of the submolecular translational process....

Combined solid state NMR and X-ray diffraction investigation of the local structure of the five-coordinate silicon in fluoride-containing as-synthesized STF zeolite.

Journal of the American Chemical Society

Fyfe CA, Brouwer DH, Lewis AR, Villaescusa LA, Morris RE.
PMID: 12083931
J Am Chem Soc. 2002 Jul 03;124(26):7770-8. doi: 10.1021/ja012558s.

The local structure of the [SiO(4/2)F]- unit in fluoride-containing as-synthesized STF zeolite has been experimentally determined by a combination of solid-state NMR and microcrystal X-ray diffraction to be very close to trigonal bipyramidal. Because the fluoride ions are disordered...

Infrared study of intercomponent interactions in a switchable hydrogen-bonded rotaxane.

Chemistry (Weinheim an der Bergstrasse, Germany)

Jagesar DC, Hartl F, Buma WJ, Brouwer AM.
PMID: 18064626
Chemistry. 2008;14(6):1935-46. doi: 10.1002/chem.200701531.

The macrocycle in rotaxane 1 is preferentially hydrogen bonded to the succinamide station in the neutral form, but can be moved to the naphthalimide station by one-electron reduction of the latter. The hydrogen bonding between the amide NH groups...

(35)Cl solid-state NMR of halide ionic liquids at ultrahigh fields.

The journal of physical chemistry. A

Gordon PG, Brouwer DH, Ripmeester JA.
PMID: 19007195
J Phys Chem A. 2008 Dec 11;112(49):12527-9. doi: 10.1021/jp808524h.

This Letter describes recent work investigating the solid-state NMR spectra of (35)Cl nuclei in an assortment of ionic liquids under static and MAS conditions at field strengths of 9.4 and 21.1 T. At high field it was possible to...

Symmetry-based 29Si dipolar recoupling magic angle spinning NMR spectroscopy: a new method for investigating three-dimensional structures of zeolite frameworks.

Journal of the American Chemical Society

Brouwer DH, Kristiansen PE, Fyfe CA, Levitt MH.
PMID: 15643876
J Am Chem Soc. 2005 Jan 19;127(2):542-3. doi: 10.1021/ja043228l.

A new 29Si solid-state MAS NMR experiment is described for investigating the framework structures of pure silica zeolites. The symmetry-based homonuclear dipolar recoupling sequence SR26411 has been incorporated into a two-dimensional NMR experiment to probe the Si-O-Si bonding connectivities...

Perceiving blocks of emotional pictures and sounds: effects on physiological variables.

Frontiers in human neuroscience

Brouwer AM, van Wouwe N, Mühl C, van Erp J, Toet A.
PMID: 23801957
Front Hum Neurosci. 2013 Jun 21;7:295. doi: 10.3389/fnhum.2013.00295. eCollection 2013.

Most studies on physiological effects of emotion-inducing images and sounds examine stimulus locked variables reflecting a state of at most a few seconds. We here aimed to induce longer lasting emotional states using blocks of repetitive visual, auditory, and...

Halfshade analyzer.

Applied optics

Brouwer GF, Podzimek O.
PMID: 20197955
Appl Opt. 1978 Apr 15;17(8):1163-4. doi: 10.1364/AO.17.001163.

No abstract available.

Periprocedural anticoagulation in atrial fibrillation: Update on electrical cardioversion and ablation.

Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation

van Vugt SPG, Brouwer MA.
PMID: 29744816
Neth Heart J. 2018 Jun;26(6):352-360. doi: 10.1007/s12471-018-1119-z.

In this manuscript, we discuss the most important changes in the field of anticoagulant treatment in patients with atrial fibrillation in the setting of electrical cardioversion or catheter ablation. Moreover, we provide practical guidance as well as information on...

Transient two-dimensional vibrational spectroscopy of an operating molecular machine.

Nature communications

Panman MR, van Dijk CN, Huerta-Viga A, Sanders HJ, Bakker BH, Leigh DA, Brouwer AM, Buma WJ, Woutersen S.
PMID: 29263325
Nat Commun. 2017 Dec 20;8(1):2206. doi: 10.1038/s41467-017-02278-6.

Synthetic molecular machines are promising building blocks for future nanoscopic devices. However, the details of their mechanical behaviour are in many cases still largely unknown. A deeper understanding of mechanics at the molecular level is essential for the design...

Correction: Parameter estimation for multistage clonal expansion models from cancer incidence data: A practical identifiability analysis.

PLoS computational biology

Brouwer AF, Meza R, Eisenberg MC.
PMID: 28715500
PLoS Comput Biol. 2017 Jul 17;13(7):e1005660. doi: 10.1371/journal.pcbi.1005660. eCollection 2017 Jul.

[This corrects the article DOI: 10.1371/journal.pcbi.1005431.].

Improving Real-Life Estimates of Emotion Based on Heart Rate: A Perspective on Taking Metabolic Heart Rate Into Account.

Frontiers in human neuroscience

Brouwer AM, van Dam E, van Erp JBF, Spangler DP, Brooks JR.
PMID: 30061818
Front Hum Neurosci. 2018 Jul 16;12:284. doi: 10.3389/fnhum.2018.00284. eCollection 2018.

Extracting information about emotion from heart rate in real life is challenged by the concurrent effect of physical activity on heart rate caused by metabolic need. "Non-metabolic heart rate," which refers to the heart rate that is caused by...

Showing 1 to 12 of 257 entries