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Showing 1 to 12 of 12 entries
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Artefact suppression in 5-pulse double electron electron resonance for distance distribution measurements.

Physical chemistry chemical physics : PCCP

Breitgoff FD, Soetbeer J, Doll A, Jeschke G, Polyhach YO.
PMID: 28590496
Phys Chem Chem Phys. 2017 Jun 21;19(24):15766-15779. doi: 10.1039/c7cp01488k.

A 5-pulse version of the Double Electron Electron Resonance (DEER) experiment with Carr-Purcell delays and an additional pump pulse has been shown to significantly extend the experimentally accessible distance range in cases where nuclear spin diffusion dominates electron spin...

Linear and Kinked Oligo(phenyleneethynylene)s as Ideal Molecular Calibrants for Förster Resonance Energy Transfer.

The journal of physical chemistry letters

Czar MF, Breitgoff FD, Sahoo D, Sajid M, Ramezanian N, Polyhach Y, Jeschke G, Godt A, Zenobi R.
PMID: 31633356
J Phys Chem Lett. 2019 Nov 07;10(21):6942-6947. doi: 10.1021/acs.jpclett.9b02621. Epub 2019 Oct 29.

We show that oligo(phenyleneethynylene)s (oligoPEs) are ideal spacers for calibrating dye pairs used for Förster resonance energy transfer (FRET). Ensemble FRET measurements on linear and kinked diads with such spacers show the expected distance and orientation dependence of FRET....

Gradual opening of Smc arms in prokaryotic condensin.

Cell reports

Vazquez Nunez R, Polyhach Y, Soh YM, Jeschke G, Gruber S.
PMID: 33910021
Cell Rep. 2021 Apr 27;35(4):109051. doi: 10.1016/j.celrep.2021.109051.

Multi-subunit SMC ATPases control chromosome superstructure apparently by catalyzing a DNA-loop-extrusion reaction. SMC proteins harbor an ABC-type ATPase "head" and a "hinge" dimerization domain connected by a coiled coil "arm." Two arms in a SMC dimer can co-align, thereby...

Regularized dynamical decoupling noise spectroscopy - a decoherence descriptor for radicals in glassy matrices.

Physical chemistry chemical physics : PCCP

Soetbeer J, Ibáñez LF, Berkson Z, Polyhach Y, Jeschke G.
PMID: 34581335
Phys Chem Chem Phys. 2021 Oct 06;23(38):21664-21676. doi: 10.1039/d1cp03103a.

Decoherence arises from a fluctuating spin environment, captured by its noise spectrum

Dynamical decoupling in water-glycerol glasses: a comparison of nitroxides, trityl radicals and gadolinium complexes.

Physical chemistry chemical physics : PCCP

Soetbeer J, Millen M, Zouboulis K, Hülsmann M, Godt A, Polyhach Y, Jeschke G.
PMID: 33635938
Phys Chem Chem Phys. 2021 Mar 11;23(9):5352-5369. doi: 10.1039/d1cp00055a.

Our previous study on nitroxides in o-terphenyl (OTP) revealed two separable decoherence processes at low temperatures, best captured by the sum of two stretched exponentials (SSE) model. Dynamical decoupling (DD) extends both associated dephasing times linearly for 1 to...

Reliable nanometre-range distance distributions from 5-pulse double electron electron resonance.

Physical chemistry chemical physics : PCCP

Breitgoff FD, Polyhach YO, Jeschke G.
PMID: 28569894
Phys Chem Chem Phys. 2017 Jun 21;19(24):15754-15765. doi: 10.1039/c7cp01487b.

Double electron electron resonance (DEER) enables determination of distance distributions in the nanometre range. A recently introduced 5-pulse version of this experiment prolongs the electron spin coherence lifetime and thus provides improved sensitivity or an extended distance range, but...

Quantification of Redox Sites during Catalytic Propane Oxychlorination by Operando EPR Spectroscopy.

Angewandte Chemie (International ed. in English)

Zichittella G, Polyhach Y, Tschaggelar R, Jeschke G, Pérez-Ramírez J.
PMID: 33166088
Angew Chem Int Ed Engl. 2021 Feb 15;60(7):3596-3602. doi: 10.1002/anie.202013331. Epub 2020 Dec 15.

Identification and quantification of redox-active centers at relevant conditions for catalysis is pivotal to understand reaction mechanisms and requires development of advanced operando methods. Herein, we demonstrate operando EPR spectroscopy as an important technique to quantify the oxidation state...

Modular Approach to Select Bacteriophages Targeting .

Frontiers in microbiology

Krylov V, Shaburova O, Pleteneva E, Bourkaltseva M, Krylov S, Kaplan A, Chesnokova E, Kulakov L, Magill D, Polygach O.
PMID: 27790211
Front Microbiol. 2016 Oct 13;7:1631. doi: 10.3389/fmicb.2016.01631. eCollection 2016.

This review discusses the potential application of bacterial viruses (phage therapy) toward the eradication of antibiotic resistant

Accessing distributions of exchange and dipolar couplings in stiff molecular rulers with Cu(II) centres.

Physical chemistry chemical physics : PCCP

Keller K, Ritsch I, Hintz H, Hülsmann M, Qi M, Breitgoff FD, Klose D, Polyhach Y, Yulikov M, Godt A, Jeschke G.
PMID: 32970079
Phys Chem Chem Phys. 2020 Oct 07;22(38):21707-21730. doi: 10.1039/d0cp03105d.

Determining distributed exchange couplings is important for understanding the properties of synthetic magnetic molecules. Such distributions can be determined from pulsed dipolar spectroscopy (PDS) data, but this is challenging due to the similar influence of both exchange and dipolar...

Dynamical decoupling of nitroxides in o-terphenyl: a study of temperature, deuteration and concentration effects.

Physical chemistry chemical physics : PCCP

Soetbeer J, Hülsmann M, Godt A, Polyhach Y, Jeschke G.
PMID: 29261205
Phys Chem Chem Phys. 2018 Jan 17;20(3):1615-1628. doi: 10.1039/c7cp07074h.

We have characterized the temperature dependent transverse relaxation for 100 μM protonated and deuterated nitroxides in both protonated and deuterated o-terphenyl (OTP and dOTP) in distinct temperature regimes between 10 K and room temperature (RT). The choice of sample...

Reconstruction of Coupled Intra- and Interdomain Protein Motion from Nuclear and Electron Magnetic Resonance.

Journal of the American Chemical Society

Born A, Soetbeer J, Breitgoff F, Henen MA, Sgourakis N, Polyhach Y, Nichols PJ, Strotz D, Jeschke G, Vögeli B.
PMID: 34579531
J Am Chem Soc. 2021 Oct 06;143(39):16055-16067. doi: 10.1021/jacs.1c06289. Epub 2021 Sep 27.

Proteins composed of multiple domains allow for structural heterogeneity and interdomain dynamics that may be vital for function. Intradomain structures and dynamics can influence interdomain conformations and

Reconstruction of Coupled Intra- and Interdomain Protein Motion from Nuclear and Electron Magnetic Resonance.

Journal of the American Chemical Society

Born A, Soetbeer J, Breitgoff F, Henen MA, Sgourakis N, Polyhach Y, Nichols PJ, Strotz D, Jeschke G, Vögeli B.
PMID: 34579531
J Am Chem Soc. 2021 Oct 06;143(39):16055-16067. doi: 10.1021/jacs.1c06289. Epub 2021 Sep 27.

Proteins composed of multiple domains allow for structural heterogeneity and interdomain dynamics that may be vital for function. Intradomain structures and dynamics can influence interdomain conformations and

Showing 1 to 12 of 12 entries