Chemical characterization by nuclear magnetic resonance spectroscopy indicated that the free amino acid L-tryptophan was the natural sperm attractant in H. rufescens . (biologists.com)
Exchange spectroscopy2
Types of 2D NMR include correlation spectroscopy (COSY), J-spectroscopy, exchange spectroscopy (EXSY), and nuclear Overhauser effect spectroscopy (NOESY). (wikipedia.org)
From 1988 to 1995 we have pioneered the development and application of certain techniques for the study of quadrupolar nuclei, such as 2H exchange spectroscopy, quadrupole nutation and double rotation, and satellite transition spectroscopy [1-3]. (ua.pt)
Homonuclear3
The first and most popular two-dimension NMR experiment is the homonuclear correlation spectroscopy (COSY) sequence, which is used to identify spins which are coupled to each other. (wikipedia.org)
The NMRN model consists of two regions, a network structure region (NS-Region) composed of well-separated homonuclear and heteronuclear framework species and a channel region (C-Region) of nonbridging oxygens (NBOs) and non-framework cations. (uniba.it)
1D and 2D heteronuclear and homonuclear high-resolution 1H Lee-Goldburg based CRAMPS NMR techniques in solids (e.g. (ua.pt)
Correlation1
Techniques have also been devised for generating heteronuclear correlation spectra, in which the two axes correspond to different isotopes, such as 13C and 1H. (wikipedia.org)
Molecular2
Ultra-structural mapping of acid-base pretreated and enzyme hydrolyzed SB by microscopic analysis (scanning electron microcopy (SEM), transmitted light microscopy (TLM), and spectroscopic analysis (X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Fourier transform near-infrared (FT-NIR) spectroscopy, and nuclear magnetic resonance (NMR) spectroscopy) elucidated the molecular changes in hemicellulose, cellulose, and lignin components of bagasse. (biomedcentral.com)
He has recently contributed with a chapter in the Encyclopedia of Nuclear Magnetic Resonance related with molecular sieves [22]. (ua.pt)
Characterization2
The structural features of the glass and glass- ceramics (GCs) were meticulously assessed by advanced characterization techniques including neutron diffraction (ND), powder X-ray diffraction (XRD), Si-29 and Al-27 magic angle spinning (MAS)-nuclear magnetic resonance (NMR), and in situ Raman spectroscopy. (uniba.it)
Enzymatic digestion - Depolymerization or cleavage of plant polysaccharides helps to generate oligosaccharides suitable for structural characterization by mass-spectrometry (MALDI-TOF MS or ESI-MS) and 1D and 2D NMR-spectroscopy. (uga.edu)
High-resolution, solution-state 2D 1 H- 13 C HSQC NMR spectroscopy has proven to be an effective tool for rapid and reproducible fingerprinting of the numerous polysaccharides and lignin components in unfractionated plant cell wall materials, and is therefore a powerful tool for cell wall profiling based on our ability to simultaneously identify and comparatively quantify numerous components within spectra generated in a relatively short time. (biomedcentral.com)
Globular domain2
The Ros87 globular domain consists of 58 aa (residues 9-66), is arranged in a topology, and is stabilized by an extensive 15-residue hydrophobic core. (cnr.it)
A backbone dynamics study of Ros87, based on 15N R1, 15N R2, and heteronuclear 15N- {1H} -NOE measurements, has further confirmed that the globular domain is uniformly rigid and flanked by two flexible tails. (cnr.it)
Homo1
1D- and 2D-NMR-spectroscopy - 1D ( 1 H, 13 C) and standard 2D homo- and heteronuclear nuclear magnetic resonance (including inter alia 1 H- 1 H-COSY, TOCSY, NOESY, ROESY, 1 H- 13 C-HSQC, H2BC, HSQC-TOCSY, and HMBC) is an extremely powerful technique for determination of carbohydrate sequence and structure of plant poly- and oligosaccharides. (uga.edu)
Residues1
A single peak (compound I) was found to consist of N-acetylglucosamine, glucose, and glucitol residues in the ratio 1:2:1. (unboundmedicine.com)
Molecules1
These 'networks' were inferred to be dynamic and poorly-ordered, consisting of several DNA loops between distally bound ParB molecules. (elifesciences.org)
Protein1
Here, we present the backbone and side chain nuclear magnetic resonance assignments for the human DBNDD1 protein. (springer.com)
Diffraction2
Piperine was isolated in a pure crystal form and characterized by its melting point, X-Ray diffraction (XRD) studies and spectral data, including two-dimensional nuclear magnetic resonance (2D-NMR) spectroscopy. (scirp.org)
CO2) and catalytic properties [19] and, very recently, in ii) structural elucidation of biosolids (e.g., biomacromolecules) and iii) combining high-resolution solid-state NMR at high magnetic fields, X-ray diffraction and computational approaches to study packing interactions (e.g., weak CH∙∙∙X and CH∙∙∙p / strong hydrogen bonds and p∙∙∙p interactions) on pharmaceutical hydrates/anhydrates systems [18]. (ua.pt)
Relaxation1
Perturbation of this nature was also observed in magnetically aligned bicelles by 31P solid-state NMR spectroscopy and spin relaxation experiments. (phoenixpeptide.com)
Sequence1
Each experiment consists of a sequence of radio frequency (RF) pulses with delay periods in between them. (wikipedia.org)
Complex1
HMOs are produced in the mammary gland from the monosaccharides galactose, glucose, N-acetylglucosamine, fucose, and sialic acid, forming unconjugated complex glycans consisting of both short chain as well as long chain structures (in 9:1 ratio), that range from 10 to 15 g/L in mature milk ( 2 ). (frontiersin.org)
All known cases have a common structure consisting of two perpendicular anti-parallel beta sheets, followed by a C-terminal amphipathic helix. (embl.de)
In 2007 we initiated in Aveiro (with F. Taulelle) the international event 'SMARTER - Structure elucidation by coMbining mAgnetic Resonance, compuTation modEling and diffRactions', bridging scientific communities. (ua.pt)
2009 Nuclear Magnetic Resonance Structure of the. (pdfroom.com)
Link1
protests ': ' Since you 've here assumed ions, Pages, or published designs, you may provide from a heteronuclear link WebIsALOD. (moretti.ca)
Study1
Our aim was thus to study, by proton nuclear magnetic resonance ( 1 H NMR) spectroscopy, the binding that occurs in aqueous solution between the CB[7] macrocyclic host molecule and three weak organic acids of the auxin family, IAA, 2-NAA, and 2,4-D (Figure 2 ), and their response to changes in pH. (springeropen.com)
Faculty2
The department consists of 21 full-time research-active faculty and 6 full-time teaching faculty, and we are in the process of expanding. (auburn.edu)
This one-day symposium usually consists of oral presentations by faculty members, post-docs and students, and poster presentations by all those who would like to present their recent results. (documents.pub)
Method1
More than anyone, Lauterbur proved that heteronuclear NMR spectroscopy was a powerful method for the investigation of matter, research that continued after his move to the University of Illinois at Urbana-Champaign in 1985. (chemistryworld.com)
Single1
It consists of a single RF pulse (p1) followed by the specific evolution time (t1) followed by a second pulse (p2) followed by a measurement period (t2). (wikipedia.org)
Materials1
High-resolution, solution-state 2D 1 H- 13 C HSQC NMR spectroscopy has proven to be an effective tool for rapid and reproducible fingerprinting of the numerous polysaccharides and lignin components in unfractionated plant cell wall materials [ 7 - 11 ]. (biomedcentral.com)
Plant2
The electron donor in photosystem I (PSI), the chlorophyll dimer P700, is studied by photochemically induced dynamic nuclear polarization (photo-CIDNP) magic angle spinning (MAS) nuclear magnetic resonance (NMR) on selectively 13 C and uniformly 15 N labeled PSI core preparations (PSI-100) obtained from the aquatic plant duckweed ( Spirodela oligorrhiza ). (copernicus.org)
In the United States, 25% of the prescriptions given from community pharmacies consisted of plant extracts or active ingredients of plant origin Cragg et al. (biomedres.us)
Work1
Although best known for his MRI work, Lauterbur made significant contributions to the development of (non-imaging) NMR spectroscopy. (chemistryworld.com)
Radio2
The NMR technique, which was developed in the 1930s and 40s, consists of measuring the radio signals emitted by an object in a magnetic field. (chemistryworld.com)
Lauterbur's breakthrough idea was to vary the strength of the magnetic field from place to place, so that different parts of the object emitted radio waves of different frequencies. (chemistryworld.com)