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Reversible CO binding enables tunable CO/Hâ‚‚ and CO/Nâ‚‚ separations in metal-organic frameworks with exposed divalent metal cations.

Journal of the American Chemical Society

Bloch ED, Hudson MR, Mason JA, Chavan S, Crocellà V, Howe JD, Lee K, Dzubak AL, Queen WL, Zadrozny JM, Geier SJ, Lin LC, Gagliardi L, Smit B, Neaton JB, Bordiga S, Brown CM, Long JR.
PMID: 24999916
J Am Chem Soc. 2014 Jul 30;136(30):10752-61. doi: 10.1021/ja505318p. Epub 2014 Jul 18.

Six metal-organic frameworks of the M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Zn; dobdc(4-) = 2,5-dioxido-1,4-benzenedicarboxylate) structure type are demonstrated to bind carbon monoxide reversibly and at high capacity. Infrared spectra indicate that, upon coordination of CO to...

Employing Forbidden Transitions as Qubits in a Nuclear Spin-Free Chromium Complex.

Journal of the American Chemical Society

Fataftah MS, Zadrozny JM, Coste SC, Graham MJ, Rogers DM, Freedman DE.
PMID: 26739626
J Am Chem Soc. 2016 Feb 03;138(4):1344-8. doi: 10.1021/jacs.5b11802. Epub 2016 Jan 21.

The implementation of quantum computation (QC) would revolutionize scientific fields ranging from encryption to quantum simulation. One intuitive candidate for the smallest unit of a quantum computer, a qubit, is electronic spin. A prominent proposal for QC relies on...

Hydrocarbon separations in a metal-organic framework with open iron(II) coordination sites.

Science (New York, N.Y.)

Bloch ED, Queen WL, Krishna R, Zadrozny JM, Brown CM, Long JR.
PMID: 22461607
Science. 2012 Mar 30;335(6076):1606-10. doi: 10.1126/science.1217544.

The energy costs associated with large-scale industrial separation of light hydrocarbons by cryogenic distillation could potentially be lowered through development of selective solid adsorbents that operate at higher temperatures. Here, the metal-organic framework Fe(2)(dobdc) (dobdc(4-) : 2,5-dioxido-1,4-benzenedicarboxylate) is demonstrated...

Opportunities for Enhanced Strategic Use of Surveys, Medical Records, and Program Data for HIV Surveillance of Key Populations: Scoping Review.

JMIR public health and surveillance

Weir SS, Baral SD, Edwards JK, Zadrozny S, Hargreaves J, Zhao J, Sabin K.
PMID: 29789279
JMIR Public Health Surveill. 2018 May 22;4(2):e28. doi: 10.2196/publichealth.8042.

BACKGROUND: Normative guidelines from the World Health Organization recommend tracking strategic information indicators among key populations. Monitoring progress in the global response to the HIV epidemic uses indicators put forward by the Joint United Nations Programme on HIV/AIDS. These...

Determination of d-Orbital Populations in a Cobalt(II) Single-Molecule Magnet Using Single-Crystal X-ray Diffraction.

Inorganic chemistry

Craven M, Nygaard MH, Zadrozny JM, Long JR, Overgaard J.
PMID: 29862809
Inorg Chem. 2018 Jun 18;57(12):6913-6920. doi: 10.1021/acs.inorgchem.8b00513. Epub 2018 Jun 04.

The tetrahedral cobalt(II) compound (Ph

Author Correction: Inositol phosphates are assembly co-factors for HIV-1.

Nature

Dick RA, Zadrozny KK, Xu C, Schur FKM, Lyddon TD, Ricana CL, Wagner JM, Perilla JR, Ganser-Pornillos BK, Johnson MC, Pornillos O, Vogt VM.
PMID: 30158708
Nature. 2018 Nov;563(7731):E22. doi: 10.1038/s41586-018-0505-4.

In this Letter, the Protein Data Bank (PDB) accessions were incorrectly listed as '6BH5, 6BHT and 6BHS' instead of '6BHR, 6BHT and 6BHS'; this has been corrected online.

The Biology and Pathobiology of Glutamatergic, Cholinergic, and Dopaminergic Signaling in the Aging Brain.

Frontiers in aging neuroscience

Gasiorowska A, Wydrych M, Drapich P, Zadrozny M, Steczkowska M, Niewiadomski W, Niewiadomska G.
PMID: 34326765
Front Aging Neurosci. 2021 Jul 13;13:654931. doi: 10.3389/fnagi.2021.654931. eCollection 2021.

The elderly population is growing worldwide, with important health and socioeconomic implications. Clinical and experimental studies on aging have uncovered numerous changes in the brain, such as decreased neurogenesis, increased synaptic defects, greater metabolic stress, and enhanced inflammation. These...

Determination of Histidine Protonation States in Proteins by Fast Magic Angle Spinning NMR.

Frontiers in molecular biosciences

Zadorozhnyi R, Sarkar S, Quinn CM, Zadrozny KK, Ganser-Pornillos BK, Pornillos O, Gronenborn AM, Polenova T.
PMID: 34957215
Front Mol Biosci. 2021 Dec 10;8:767040. doi: 10.3389/fmolb.2021.767040. eCollection 2021.

Histidine residues play important structural and functional roles in proteins, such as serving as metal-binding ligands, mediating enzyme catalysis, and modulating proton channel activity. Many of these activities are modulated by the ionization state of the imidazole ring. Here...

Programmable Nuclear-Spin Dynamics in Ti(IV) Coordination Complexes.

Inorganic chemistry

Johnson SH, Jackson CE, Zadrozny JM.
PMID: 32302112
Inorg Chem. 2020 Jun 01;59(11):7479-7486. doi: 10.1021/acs.inorgchem.0c00244. Epub 2020 Apr 17.

Interstitial patterning of nuclear spins is a nascent design principle for controlling electron spin superposition lifetimes in open-shell complexes and solid-state defects. Herein we report the first test of the impact of the patterning principle on ligand-based nuclear spin...

Millisecond Coherence Time in a Tunable Molecular Electronic Spin Qubit.

ACS central science

Zadrozny JM, Niklas J, Poluektov OG, Freedman DE.
PMID: 27163013
ACS Cent Sci. 2015 Dec 23;1(9):488-92. doi: 10.1021/acscentsci.5b00338. Epub 2015 Dec 02.

Quantum information processing (QIP) could revolutionize areas ranging from chemical modeling to cryptography. One key figure of merit for the smallest unit for QIP, the qubit, is the coherence time (T 2), which establishes the lifetime for the qubit....

Long Coherence Times in Nuclear Spin-Free Vanadyl Qubits.

Journal of the American Chemical Society

Yu CJ, Graham MJ, Zadrozny JM, Niklas J, Krzyaniak MD, Wasielewski MR, Poluektov OG, Freedman DE.
PMID: 27797487
J Am Chem Soc. 2016 Nov 09;138(44):14678-14685. doi: 10.1021/jacs.6b08467. Epub 2016 Oct 31.

Quantum information processing (QIP) offers the potential to create new frontiers in fields ranging from quantum biology to cryptography. Two key figures of merit for electronic spin qubits, the smallest units of QIP, are the coherence time (T

Dual-conjugate wavefront generation for adaptive optics.

Optics express

Kelly TL, Buscher DF, Clark P, Dunlop C, Love G, Myers RM, Sharples R, Zadrozny A.
PMID: 19407888
Opt Express. 2000 Nov 20;7(11):368-74. doi: 10.1364/oe.7.000368.

We present results of the isoplanatic performance of an astronomical adaptive optics system in the laboratory, by using a dual layer turbulence simulator. We describe how the performance of adaptive correction degrades with off--axis angle. These experiments demonstrate that...

Showing 1 to 12 of 43 entries