Steen Brondsted Nielsen
Overview
Explore the profile of Steen Brondsted Nielsen including associated specialties, affiliations and a list of published articles.
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Articles
122
Citations
457
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Recent Articles
1.
Djavani-Tabrizi I, Lindkvist T, Langeland J, Kjaer C, Graham M, Kjaergaard H, et al.
J Am Chem Soc
. 2024 Sep;
146(39):26975-26982.
PMID: 39298372
Bioluminescence in fireflies and related insects arises as emission from the fluorophore oxyluciferin, yet the color of the emission in these insects can range from red to green. The chromophore's...
2.
Lindkvist T, Djavani-Tabrizi I, Chen L, Nielsen S
Chempluschem
. 2024 Aug;
89(12):e202400448.
PMID: 39190502
Various techniques are available to illuminate geometric structures of molecular ions in gas phase, such as Förster Resonance Energy Transfer (FRET) informing on distances between two dyes covalently attached to...
3.
Lindkvist T, Kjaer C, Langeland J, Vogt E, Kjaergaard H, Nielsen S
J Chem Phys
. 2024 May;
160(18).
PMID: 38726936
Proflavine, a fluorescent cationic dye with strong absorption in the visible, has been proposed as a potential contributor to diffuse interstellar bands (DIBs). To investigate this hypothesis, it is essential...
4.
Lindkvist T, Langeland J, Kjaer C, Nielsen S
J Am Soc Mass Spectrom
. 2023 Dec;
35(1):123-130.
PMID: 38079152
The ion motion in a quadrupole ion trap of hyperbolic geometry is well described by the Mathieu equations. A simpler cylindrical ion trap has also gained significance and has been...
5.
Kjaer C, Vogt E, Langeland J, Christensen N, Lindkvist T, Kjaergaard H, et al.
Phys Chem Chem Phys
. 2023 Nov;
25(47):32715-32722.
PMID: 38014982
Recent developments in fluorescence spectroscopy have made it possible to measure both absorption and dispersed fluorescence spectra of isolated molecular ions at liquid-nitrogen temperatures. Absorption is here obtained from fluorescence-excitation...
6.
Kjaer C, Vu-Phung A, Lindkvist T, Langeland J, Nielsen S
Chemistry
. 2023 Aug;
29(60):e202302166.
PMID: 37565666
The internal electronic communication between two or more light-absorbers is fundamental for energy-transport processes, a field of large current interest. Here the intrinsic photophysics of homo- and heterodimers of rhodamine...
7.
Langeland J, Christensen N, Vogt E, Kjaer C, Lindkvist T, Nielsen S, et al.
J Phys Chem Lett
. 2023 Jun;
14(25):5949-5954.
PMID: 37345799
Bioluminescence from fireflies, click beetles, and railroad worms ranges in color from green-yellow to orange to red. The keto form of oxyluciferin is considered a key emitter species in the...
8.
Ashworth E, Langeland J, Stockett M, Lindkvist T, Kjaer C, Bull J, et al.
J Phys Chem A
. 2022 Dec;
126(51):9553-9563.
PMID: 36529970
Fluorescence spectroscopy of gas-phase ions generated through electrospray ionization is an emerging technique able to probe intrinsic molecular photophysics directly without perturbations from solvent interactions. While there is ample scope...
9.
Langeland J, Lindkvist T, Kjaer C, Nielsen S
Mass Spectrom Rev
. 2022 Dec;
43(3):477-499.
PMID: 36514825
Förster Resonance Energy transfer (FRET) is a nonradiative process that may occur from an electronically excited donor to an acceptor when the emission spectrum of the donor overlaps with the...
10.
Kjaer C, Langeland J, Nielsen S
Phys Chem Chem Phys
. 2022 Jun;
24(31):18505-18510.
PMID: 35703330
Fireflies, click beetles, and railroad worms glow in the dark. The color varies from green to red among the insects and is associated with an electronically excited oxyluciferin formed catalytically...