Works (43)

Updated: April 5th, 2024 02:05

2021 journal article

Plasma metabolomic profiling of healthy pregnant mares and mares with experimentally induced placentitis

Equine Veterinary Journal, 53(1), 85–93.

By: T. Beachler n, H. Gracz n, D. Morgan n, S. Bembenek Bailey n, L. Borst n, K. Ellis n, K. Von Dollen n, S. Lyle n ...

author keywords: horse; placentitis; diagnosis; plasma; NMR spectroscopy; metabolomics
MeSH headings : Animals; Female; Horse Diseases; Horses; Metabolomics; Placenta Diseases / veterinary; Plasma; Pregnancy; Streptococcus equi
TL;DR: Two phases of metabolite changes were noted after experimental infection: An immediate rise in metabolite concentration involved in energy, nitrogen, hydrogen, and oxygen metabolism within 4 hours after inoculation that was followed by a decrease in metabolites involved inenergy and nitrogen metabolism at 4 days, coinciding with ultrasonographic diagnosis of placentitis. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: April 27, 2020

2021 journal article

Synthesis, biochemical, and biological evaluation of C2 linkage derivatives of amino sugars, inhibitors of glucokinase from Trypanosoma cruzi

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, 47.

By: S. Green, R. Jr, S. Carey, D. Morgan, H. Gracz*, J. Sherman, A. Rodriguez, . Edward L. D'Antonio

author keywords: Chagas' disease; Neglected tropical diseases; Glucokinase; Amino sugars; Inhibitors
MeSH headings : Amino Sugars / chemical synthesis; Amino Sugars / chemistry; Amino Sugars / pharmacology; Dose-Response Relationship, Drug; Enzyme Inhibitors / chemical synthesis; Enzyme Inhibitors / chemistry; Enzyme Inhibitors / pharmacology; Glucokinase / antagonists & inhibitors; Glucokinase / metabolism; Molecular Structure; Structure-Activity Relationship; Trypanosoma cruzi / enzymology
TL;DR: Eighteen amino sugar analogues were synthesized and screened against Trypanosoma cruzi glucokinase (TcGlcK), a potential drug-target of the protozoan parasite in order to assess for viable enzyme inhibition. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 16, 2021

2020 journal article

Metabolomic Profile of Allantoic and Amniotic Fluid in Late-term Gestational Mares Characterized by H-1-nuclear Magnetic Resonance Spectroscopy

JOURNAL OF EQUINE VETERINARY SCIENCE, 94.

By: T. Beachler n, C. Bailey n, H. Gracz n, D. Morgan n, K. Von Dollen n, K. Ellis n, J. Gadsby n, S. Lyle n

author keywords: Equine; Metabolomics; Allantoic; Amniotic; Nuclear magnetic resonance spectroscopy
MeSH headings : Allantois; Amniotic Fluid; Animals; Body Fluids; Female; Horses; Magnetic Resonance Spectroscopy; Pregnancy; Protons
TL;DR: The goal of this study was to characterize the global metabolomic profile of equine allantoic and amniotic fluid through nuclear magnetic resonance spectroscopy offetal fluids from 12 pregnancies through ultrasound-guided transabdominal puncture. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: November 24, 2020

2019 journal article

Allantoic Metabolites, Progesterone, and Estradiol-17 beta Remain Unchanged After Infection in an Experimental Model of Equine Ascending Placentitis

JOURNAL OF EQUINE VETERINARY SCIENCE, 73, 95–105.

By: T. Beachler n, H. Gracz n, N. Long*, L. Borst n, D. Morgan n, A. Nebel n, N. Andrews n, J. Koipillai n ...

author keywords: Equine; Ascending placentitis; Metabolomics; Allantoic fluid
TL;DR: The results of this study established a database of equine allantoic fluid metabolites and confirmed the utility of uteroplacental ultrasound for detection of placentitis before the onset of hematologic changes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: February 11, 2019

2019 journal article

Fundamental molecular characterization and comparison of the 0, D-0, and E stage effluents from hardwood pulp bleaching

TAPPI JOURNAL, 18(6), 341–351.

By: J. Jardim*, X. Du, P. Hart*, L. Lucia*, H. Jameel*, H. Chang*, H. Gracz*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: July 22, 2019

2019 journal article

NMR Metabolomic Analysis of Skeletal Muscle, Heart, and Liver of Hatchling Loggerhead Sea Turtles (Caretta caretta) Experimentally Exposed to Crude Oil and/or Corexit

Metabolites, 9(2), 21.

By: S. Bembenek-Bailey n, J. Niemuth n, P. McClellan-Green n, M. Godfrey n, C. Harms n, H. Gracz n, M. Stoskopf n

author keywords: Caretta caretta; Corexit 9500A; crude oil; heart; liver; metabolomics; NMR; sea turtle; skeletal muscle
TL;DR: Observed decreases in concentrations of lactate and creatines may reflect energy depletion in skeletal muscle of oil-exposed animals, while decreased taurine concentrations in these animals may reflect higher oxidative stress. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: February 11, 2019

2019 journal article

Towards microbe-targeted photosensitizers: Synthesis, characterization and in vitro photodynamic inactivation of the tuberculosis model pathogen M. smegmatis by porphyrin-peptide conjugates

Journal of Porphyrins and Phthalocyanines, 23(11n12), 1414–1439.

By: E. Feese n, H. Gracz n, P. Boyle n & R. Ghiladi n

author keywords: antimicrobial; Mycobacterium smegmatis; peptide; photodynamic inactivation; porphyrin; tuberculosis
TL;DR: The ability of PPCs to maintain their antimicrobial photodynamic inactivation efficacy when possessing a short cationic peptides for enabling the potential targeting of pathogens in vivo is demonstrated. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: February 10, 2020

2018 journal article

Dynamics of dehaloperoxidase-hemoglobin A derived from NMR relaxation spectroscopy and molecular dynamics simulation

JOURNAL OF INORGANIC BIOCHEMISTRY, 181, 65–73.

By: J. Zhao n, M. Xue*, D. Gudanis*, H. Gracz n, G. Findenegg*, Z. Gdaniec*, S. Franzen n

author keywords: Multifunctional-enzyme; Peroxidase; Peroxygenase; Protein dynamics; Model-free analysis
MeSH headings : Algorithms; Animals; Binding Sites; Crystallography, X-Ray; Dimerization; Hemoglobins / chemistry; Hemoglobins / genetics; Hemoglobins / metabolism; Histidine / chemistry; Histidine / genetics; Histidine / metabolism; Kinetics; Ligands; Models, Molecular; Molecular Dynamics Simulation; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular; Oligopeptides / chemistry; Oligopeptides / genetics; Oligopeptides / metabolism; Peroxidases / chemistry; Peroxidases / genetics; Peroxidases / metabolism; Polychaeta / enzymology; Protein Conformation; Protein Folding; Recombinant Fusion Proteins / chemistry; Recombinant Fusion Proteins / metabolism; Xenon / chemistry; Xenon / metabolism
TL;DR: A study of the protein backbone dynamics of DHP using heteronuclear NMR relaxation methods and molecular dynamics simulations to address the role of protein dynamics in switching from one function to another. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2017 journal article

Altered acrylic acid concentrations in hard and soft corals exposed to deteriorating water conditions

FACETS, 2, 531–544.

By: L. Westmoreland n, J. Niemuth n, H. Gracz n & M. Stoskopf n

Ed(s): R. Macdonald

TL;DR: Changes in acrylic acid concentration in polyp tissues free of zooxanthellae suggest that acrylic acid could be a product of animal metabolism and not exclusively a metabolic by-product of the osmolyte dimethylsulfoniopropionate (DMSP) in marine algae or bacteria. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
14. Life Below Water (OpenAlex)
Sources: NC State University Libraries, ORCID, NC State University Libraries
Added: August 6, 2018

2017 journal article

Evaluation of physical and chemical properties and their interactions in fat, oil, and grease (FOG) deposits

WATER RESEARCH, 123, 173–182.

By: M. Gross*, J. Jensen*, H. Gracz n, J. Dancer* & K. Keener*

author keywords: Fat oil and grease; FOG; Grease; Blockages; Fatty acids; Physical properties; Chemical properties
MeSH headings : Fats / chemistry; Fatty Acids; Hydrocarbons; Metals; Sewage
TL;DR: A thorough laboratory study was undertaken to examine key variables that contribute to FOG deposit formation under controlled conditions and it was found that FOG deposits can be created through fatty acid crystallization and not just saponification. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2017 journal article

Ibuprofen loaded PLA nanofibrous scaffolds increase proliferation of human skin cells in vitro and promote healing of full thickness incision wounds in vivo

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, 105(2), 327–339.

By: M. Mohiti-Asli n, S. Saha n, S. Murphy*, H. Gracz n, B. Pourdeyhimi n, A. Atala*, E. Loboa n

author keywords: controlled release; drug delivery/release; inflammation; PLLA; wound healing
MeSH headings : Animals; Dermis / injuries; Dermis / metabolism; Dermis / pathology; Drug Carriers / chemistry; Drug Carriers / pharmacokinetics; Drug Carriers / pharmacology; Fibroblasts / metabolism; Fibroblasts / pathology; Humans; Ibuprofen / chemistry; Ibuprofen / pharmacokinetics; Ibuprofen / pharmacology; Keratinocytes / metabolism; Keratinocytes / pathology; Mice, Nude; Nanofibers / chemistry; Nanofibers / therapeutic use; Polyesters / chemistry; Polyesters / pharmacokinetics; Polyesters / pharmacology; Wound Healing / drug effects
TL;DR: It is found that degradable anti-inflammatory scaffolds containing 20 wt % ibuprofen promote human skin cell viability and proliferation in vitro, reduce wound contraction in vivo, and when seeded with skin cells, also enhance new blood vessel formation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Beyond Microstructures: Using the Kerr Effect to Characterize the Macrostructures of Synthetic Polymers

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 53(3), 155–166.

By: R. Gurarslan n, S. Hardrict n, D. Roy*, C. Galvin n, M. Hill*, H. Gracz n, B. Sumerlin*, J. Genzer n, A. Tonelli n

author keywords: Kerr Effect; microstructure; NMR; structural characterization; structure-property relations
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Structure-based approach to the identification of a novel group of selective glucosamine analogue inhibitors of Trypanosoma cruzi glucokinase

Molecular and Biochemical Parasitology, 204(2), 64–76.

By: E. D'Antonio, M. Deinema, S. Kearns, T. Frey, S. Tanghe, K. Perry, T. Roy, H. Gracz, A. Rodriguez, J. D'Antonio

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

Tissue extraction methods for metabolic profiling of a freshwater bivalve, Elliptio complanata

American Malacological Bulletin, 33(2), 185–194.

By: J. Hurley-Sanders n, M. Stoskopf n, S. Nelson, W. Showers n, J. Law n, H. Gracz*, J. Levine n

author keywords: freshwater bivalve; metabolomics; NMR; nuclear magnetic resonance; Ringer's solution
TL;DR: Ringer's solution is simple to use, safe and consistent and bears consideration when selecting an extraction protocol for 1H nuclear magnetic resonance experiments, particularly in the 3–4.5 ppm sugar/amino acid range. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2014 journal article

Chemical Changes during Anaerobic Decomposition of Hardwood, Softwood, and Old Newsprint under Mesophilic and Thermophilic Conditions

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 62(27), 6362–6374.

By: F. Cruz n, D. Yelle*, H. Gracz n & M. Barlaz n

author keywords: anaerobic decomposition; CuO oxidation; lignin; HSQC; NMR
MeSH headings : Anaerobiosis; Biotechnology; Cellulose / chemistry; Lignin / chemistry; Magnetic Resonance Spectroscopy; Plants / chemistry; Wood / chemistry
TL;DR: The 2D NMR and chemical degradation methods revealed slight reductions in β-O-4 linkages for HW and ONP, with no depolymerization of lignin in any substrate. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 6, 2018

2014 journal article

Lignin extraction from biomass with protic ionic liquids

GREEN CHEMISTRY, 16(3), 1114–1119.

By: E. Achinivu n, R. Howard n, G. Li n, H. Gracz n & W. Henderson n

TL;DR: Biopolymer solubility tests indicate that increasing the xylansolubility in the PIL results in greater fiber disruption/penetration, which significantly enhances the effectiveness of the lignin extraction. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Characterizing polymer macrostructures by identifying and locating microstructures along their chains with the kerr effect

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 51(9), 735–741.

By: S. Hardrict n, R. Gurarslan n, C. Galvin n, H. Gracz n, D. Roy*, B. Sumerlin*, J. Genzer n, A. Tonelli n

author keywords: microstructure; solution properties; structure-property relations; thin films
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 journal article

Origin of Overstretching Transitions in Single-Stranded Nucleic Acids

PHYSICAL REVIEW LETTERS, 111(18).

By: Z. Scholl*, M. Rabbi*, D. Lee*, L. Manson*, H. S-Gracz n & P. Marszalek*

MeSH headings : DNA, Single-Stranded / chemistry; Elasticity; Hydrogen Bonding; Microscopy, Atomic Force / methods; Models, Molecular; Nuclear Magnetic Resonance, Biomolecular / methods; Nucleic Acid Conformation; RNA / chemistry; Spectrum Analysis / methods
TL;DR: Observations suggest new fundamental relationships between the canonical structures of single-and double-stranded DNA and the mechanism of their molecular elasticity. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Nonphotochemical Base-Catalyzed Hydroxylation of 2,6-Dichloroquinone by H2O2Occurs by a Radical Mechanism

The Journal of Physical Chemistry B, 116(5), 1666–1676.

By: S. Franzen n, K. Sasan, B. Sturgeon*, B. Lyon*, B. Battenburg*, H. Gracz*, R. Dumariah, R. Ghiladi*

Contributors: S. Franzen n, K. Sasan, B. Sturgeon*, B. Lyon*, B. Battenburg*, H. Gracz*, R. Dumariah, R. Ghiladi*

MeSH headings : Animals; Benzoquinones / chemistry; Benzoquinones / metabolism; Catalysis; Chlorophenols / metabolism; Hydrogen Peroxide / metabolism; Peroxidases / metabolism; Polychaeta / enzymology; Polychaeta / metabolism
TL;DR: The control experiments and precedents in studies of other peroxidases lead to the conclusion that hydroxylation will be observed following any process that leads to the formation of the 2,6-DCQ at pH > 7, regardless of the catalyst used in the2,4, 6-TCP oxidation reaction. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2011 journal article

Functional Consequences of the Creation of an Asp-His-Fe Triad in a 3/3 Globin

Biochemistry, 50(44), 9664–9680.

By: E. D’Antonio n, J. D’Antonio n, V. de Serrano n, H. Gracz n, M. Thompson n, R. Ghiladi n, E. Bowden n, S. Franzen n

Contributors: E. Dantonio n, J. Dantonio n, V. De Serrano n, H. Gracz n, M. Thompson n, R. Ghiladi n, E. Bowden n, S. Franzen n

MeSH headings : Animals; Aspartic Acid / chemistry; Aspartic Acid / genetics; Catalytic Domain / genetics; Crystallography, X-Ray; Electrochemistry; Globins / chemistry; Globins / genetics; Helminth Proteins / chemistry; Helminth Proteins / genetics; Histidine / chemistry; Histidine / genetics; Magnetic Resonance Spectroscopy; Mutagenesis, Site-Directed; Polychaeta / enzymology; Polychaeta / genetics; Spectrophotometry, Ultraviolet; Spectrum Analysis, Raman
TL;DR: The results suggest that the proximal charge relay in peroxidases regulate the redox potential of the heme Fe but that the trans effect is a carefully balanced property that can both activate H( 2)O(2) and attract ligation by the distal histidine. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2011 journal article

Photobactericidal Porphyrin-Cellulose Nanocrystals: Synthesis, Characterization, and Antimicrobial Properties

Biomacromolecules, 12(10), 3528–3539.

By: E. Feese n, H. Sadeghifar*, H. Gracz*, D. Argyropoulos* & R. Ghiladi*

Contributors: E. Feese n, H. Sadeghifar*, H. Gracz*, D. Argyropoulos* & R. Ghiladi*

MeSH headings : Anti-Bacterial Agents / chemical synthesis; Anti-Bacterial Agents / pharmacology; Azides / chemistry; Cellulose / chemistry; Click Chemistry / methods; Disinfectants / chemical synthesis; Disinfectants / pharmacology; Escherichia coli / drug effects; Escherichia coli / growth & development; Escherichia coli / radiation effects; Humans; Light; Magnetic Resonance Spectroscopy; Microbial Sensitivity Tests; Microbial Viability / drug effects; Microbial Viability / radiation effects; Molecular Structure; Mycobacterium smegmatis / drug effects; Mycobacterium smegmatis / growth & development; Mycobacterium smegmatis / radiation effects; Nanoparticles / chemistry; Nanotechnology / methods; Photosensitizing Agents / chemical synthesis; Photosensitizing Agents / pharmacology; Porphyrins / chemistry; Species Specificity; Staphylococcus aureus / drug effects; Staphylococcus aureus / growth & development; Staphylococcus aureus / radiation effects; Thermogravimetry
TL;DR: The synthesis, properties, and activity of CNC-Por (5) described herein serve as a benchmark toward the overall objectives of developing novel, potent, bioactive, photobactericidal materials that are effective against a range of bacteria, with potential utilization in the health care and food preparation industries. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2011 journal article

Quantification of lignin-carbohydrate linkages with high-resolution NMR spectroscopy

PLANTA, 233(6), 1097–1110.

By: M. Balakshin n, E. Capanema n, H. Gracz n, H. Chang n & H. Jameel n

author keywords: Lignin-carbohydrate complex; Benzyl ether LCC linkages; Phenyl glycoside linkages; Ester LCC linkages; Quantitative HSQC NMR technique
MeSH headings : Betula / chemistry; Betula / metabolism; Carbohydrate Conformation; Carbohydrate Metabolism; Carbohydrates / chemistry; Lignin / chemistry; Lignin / metabolism; Molecular Structure; Nuclear Magnetic Resonance, Biomolecular / methods; Pinus taeda / chemistry; Pinus taeda / metabolism; Wood / chemistry
TL;DR: The data obtained indicate that pinewood contains higher amounts of benzyl ether LCC linkages, but lower amounts of phenyl glycoside and γ-ester LCC moieties as compared to birch wood. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2010 journal article

Synthesis, NMR characterization and divergent biological actions of 2 '-hydroxy-ceramide/dihydroceramide stereoisomers in MCF7 cells

BIOORGANIC & MEDICINAL CHEMISTRY, 18(21), 7565–7579.

By: Z. Szulc*, A. Bai*, J. Bielawski*, N. Mayroo*, D. Miller*, H. Gracz n, Y. Hannun*, A. Bielawska*

author keywords: Ceramide; (2 ' R)-2 '-Hydroxy-ceramide; (2 ' S)-2 '-Hydroxy-ceramide; Stereospecificity; Synthesis; LC-MS/MS; NMR; Cytotoxicity; Cellular sphingolipids
MeSH headings : Cell Line, Tumor; Ceramides / chemical synthesis; Ceramides / chemistry; Ceramides / pharmacology; Humans; Magnetic Resonance Spectroscopy; Sphingolipids / metabolism; Stereoisomerism; Time Factors
TL;DR: Stereoisomers of 2'-OHCers can be potentially utilized as novel molecular tools to study lipid-protein interactions, cell signaling phenomena and to understand the role of hydroxylated sphingolipids in cancer biology, pathogenesis and therapy. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Different Modes of Binding of Mono-, Di-, and Trihalogenated Phenols to the Hemoglobin Dehaloperoxidase from Amphitrite ornata

BIOCHEMISTRY, 48(10), 2164–2172.

By: M. Davis n, H. Gracz n, F. Vendeix n, V. Serrano n, A. Somasundaram n, S. Decatur n, S. Franzen n

MeSH headings : Animals; Binding Sites / physiology; Catalysis; Catalytic Domain / physiology; Heme / chemistry; Hemoglobins / chemistry; Hemoglobins / genetics; Hemoglobins / metabolism; Hydrocarbons, Halogenated / chemistry; Hydrocarbons, Halogenated / metabolism; Molecular Conformation; Nuclear Magnetic Resonance, Biomolecular; Peroxidases / chemistry; Peroxidases / genetics; Peroxidases / metabolism; Phenols / chemistry; Phenols / metabolism; Polychaeta / enzymology; Polychaeta / genetics; Potassium Cyanide / chemistry; Protein Binding / physiology; Protein Conformation; Recombinant Proteins / chemistry; Recombinant Proteins / genetics; Recombinant Proteins / metabolism; Substrate Specificity
TL;DR: The most soluble trihalogenated phenol acts as a highly soluble structural analogue to the native substrate 2,4,6-tribromophenol, and to improve the understanding of substrate binding, the most soluble substrate analogues are compared. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

NMR studies of the inclusion complex of cloprostenol sodium salt with beta-cyclodextrin in aqueous solution

PHARMACEUTICAL RESEARCH, 25(5), 1142–1149.

By: H. Whang n, F. Vendeix n, H. Gracz n, J. Gadsby n & A. Tonelli n

author keywords: cloprostenol sodium salt; cyclodextrins; inclusion complexes; molecular modeling; nuclear magnetic resonance
MeSH headings : Chemical Phenomena; Chemistry, Physical; Cloprostenol / chemistry; Magnetic Resonance Spectroscopy; Models, Molecular; Solutions; beta-Cyclodextrins / chemistry
TL;DR: This is the first study of the inclusion complex of cloprostenol with β-cyclodextrin (β-CD) in aqueous solution using NMR and 3D molecular dynamics simulations and it is found that β-CD forms a 1:1 inclusion complex with clop Frostenol. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Spectroscopic analysis of poly(bisphenol A carbonate) using high resolution C-13 and H-1 NMR

POLYMER, 49(2), 394–404.

By: J. Kim n, H. Gracz n, G. Roberts n & D. Kiserow n

author keywords: poly(bisphenol A carbonate); end-group analysis; NMR spectroscopy
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Direct measurements of base stacking interactions in DNA by single-molecule atomic-force spectroscopy

PHYSICAL REVIEW LETTERS, 99(1).

By: C. Ke*, M. Humeniuk*, H. S-Gracz n & P. Marszalek*

MeSH headings : Base Pairing; DNA / chemistry; DNA / ultrastructure; Microscopy, Atomic Force; Polydeoxyribonucleotides / chemistry
TL;DR: It is suggested that these transitions, which occur at approximately 23 pN and approximately 113 pN, directly capture, for the first time, the mechanical signature of base-stacking interactions among adenines in DNA, in the absence of base pairing. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Crystalline cyclodextrin inclusion compounds formed with aromatic guests: Guest-dependent stoichiometries and hydration-sensitive crystal structures

CRYSTAL GROWTH & DESIGN, 6(5), 1113–1119.

By: T. Uyar n, M. Hunt n, H. Gracz n & A. Tonelli n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Polymerization of styrene in gamma-cyclodextrin channels: Lightly rotaxanated polystyrenes with altered stereosequences

POLYMER, 47(20), 6948–6955.

By: T. Uyar n, H. Gracz n, M. Rusa n, I. Shin*, A. El-Shafei n & A. Tonelli n

Contributors: T. Uyar n, H. Gracz n, M. Rusa n, I. Shin*, A. El-Shafei n & A. Tonelli n

author keywords: cyclodextrin; inclusion compound; polystyrene
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID
Added: August 6, 2018

2006 journal article

Tailoring structure-function and targeting properties of ceramides by site-specific cationization

BIOORGANIC & MEDICINAL CHEMISTRY, 14(21), 7083–7104.

By: Z. Szulc*, J. Bielawski*, H. Gracz n, M. Gustilo*, N. Mayroo*, Y. Hannun*, L. Obeid*, A. Bielawska*

author keywords: ceramide; cationic ceramides; ceramidoids; ceramide conjugates with pyridinium salts; CCPS-analogs; synthesis; LC-MS; NMR; cytotoxicity
MeSH headings : Antineoplastic Agents / chemistry; Antineoplastic Agents / pharmacology; Breast Neoplasms / pathology; Cations; Cell Line, Tumor; Ceramides / chemistry; Ceramides / pharmacology; Drug Screening Assays, Antitumor; Humans; Magnetic Resonance Spectroscopy; Solubility; Spectrometry, Mass, Electrospray Ionization; Structure-Activity Relationship
TL;DR: A new class of cationic Cer mimics, dubbed ceramidoids, designed to act as organelle-targeted sphingolipids (SPLs), based on conjugates of Cer and dihydroceramide with pyridinium salts with significantly improved solubility in water, well-resolved NMR spectra in D(2)O, and higher anticancer activities in cells in comparison to uncharged counterparts are reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Structural study of irregular amino acid sequences in the heavy chain of Bombyx mori silk fibroin

BIOMACROMOLECULES, 6(5), 2563–2569.

By: S. Ha n, H. Gracz n, A. Tonelli n & S. Hudson n

MeSH headings : Amino Acid Sequence; Amino Acids / chemistry; Animals; Bombyx; Crystallography, X-Ray; Fibroins / chemistry; Insect Proteins / chemistry; Magnetic Resonance Spectroscopy; Models, Molecular; Molecular Sequence Data; Peptides / chemistry; Polymers / chemistry; Protein Conformation; Protein Structure, Secondary; Sequence Homology, Amino Acid; Silk / chemistry; Silk / metabolism; X-Ray Diffraction
TL;DR: The 3-D structure determined for this peptide shows that it makes a loop structure (distorted omega shape), which implies that the preceding backbone direction is changed by 180 degrees, i.e., reversed, by this sequence, which may facilitate the beta-sheet formation between the crystal-forming building blocks, GAGAGS/GY approximately GY sequences, in the fibroin heavy chain. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Length scales which perturb chain packing in amorphous polymers

MACROMOLECULES, 37(12), 4573–4579.

By: M. Wachowicz n, J. Wolak n, H. Gracz n, E. Stejskal n, S. Jurga n, E. McCord n, J. White n

Source: Web Of Science
Added: August 6, 2018

2004 journal article

Structural characterization of an intermolecular RNA-RNA interaction involved in the transcription regulation element of a bipartite plant virus

NUCLEIC ACIDS RESEARCH, 32(9), 2819–2828.

By: R. Guenther*, T. Sit, H. Gracz, M. Dolan, H. Townsend, G. Liu, W. Newman, P. Agris, S. Lommel

Contributors: R. Guenther*, T. Sit, H. Gracz, M. Dolan, H. Townsend, G. Liu, W. Newman, P. Agris, S. Lommel

MeSH headings : Base Pairing; Base Sequence; Computer Simulation; Gene Expression Regulation, Viral; Macromolecular Substances; Models, Molecular; Molecular Sequence Data; Nuclear Magnetic Resonance, Biomolecular; Nucleic Acid Conformation; Promoter Regions, Genetic; RNA, Viral / chemistry; RNA, Viral / metabolism; Regulatory Sequences, Ribonucleic Acid; Tombusviridae / genetics; Transcription, Genetic
TL;DR: The RCNMV TA structural model is similar to those for the Simian retrovirus frameshifting element and the Human immunodeficiency virus-1 dimerization kissing hairpins, suggesting a conservation of form and function. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
13. Climate Action (Web of Science)
15. Life on Land (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2003 journal article

Comparative studies on the delignification of pine kraft-anthraquinone pulp with hydrogen peroxide by binucleus Mn(IV) complex catalysis

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 51(21), 6223–6232.

By: C. Chen n, E. Capanema n & H. Gracz n

author keywords: pine kraft-AQ pulp; binucleus Mn(IV) complex; hydrogen peroxide bleaching; catalysis; residual lignins; alkaline-soluble lignin; 2D HMQC NMR; epoxidation; oxidative cleavage
MeSH headings : Catalysis; Cellulase / metabolism; Hydrogen Peroxide / chemistry; Hydrogen-Ion Concentration; Hydrolysis; Lignin / chemistry; Magnetic Resonance Spectroscopy; Manganese / chemistry; Pinus / chemistry; Solubility; Solutions; Stilbenes / chemistry; Wood
TL;DR: The results showed that biphenyl (5-5) and stilbene structures of the residual lignin in the pulp are preferentially degraded in both the C1- and C2-catalyzed bleachings, whereas beta-O-4, beta-5, and beta-beta structures undergo degradation to a lesser extent. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Elucidation of the structures of residual and dissolved pine kraft lignins using an HMQC NMR technique

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 51(21), 6116–6127.

By: M. Balakshin n, E. Capanema n, C. Chen n & H. Gracz n

author keywords: residual lignin; kraft lignin; kraft pulping; NMR; 2D HMQC technique; lignin-carbohydrate complex; condensation reactions; lignin degradation products
MeSH headings : Carbohydrate Conformation; Carbohydrates / analysis; Industry; Lignin / chemistry; Lignin / isolation & purification; Magnetic Resonance Spectroscopy / methods; Molecular Structure; Pinus / chemistry; Wood
TL;DR: Elucidation of the role of condensation reactions indicates that an increase in the degree of lignin condensation during pulping results from accumulation of original condensed lign in moieties rather than from the formation of new alkyl-aryl structures. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Polyolefin miscibility: Solid-state NMR investigation of phase behavior in saturated hydrocarbon blends

MACROMOLECULES, 36(13), 4844–4850.

By: J. Wolak*, X. Jia*, H. Gracz*, E. Stejskal*, J. White*, M. Wachowicz, S. Jurga

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Reaction mechanisms in delignification of pine Kraft-AQ pulp with hydrogen peroxide using Mn(IV)-Me4DTNE as catalyst

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 51(7), 1932–1941.

By: C. Chen n, E. Capanema n & H. Gracz n

author keywords: pine Kraft-AQ pulp; binucleus Mn(IV) complex; hydrogen peroxide bleaching; catalysis; residual lignins; alkaline soluble lignin; 2D HMQC NMR spectroscopic technique; epoxidation of conjugated double bonds
MeSH headings : Hydrogen Peroxide / chemistry; Lignin / analysis; Lignin / chemistry; Magnetic Resonance Spectroscopy; Organometallic Compounds / chemistry; Wood
TL;DR: The results showed that biphenyl (5-5) and stilbene structures are preferentially degraded in the bleaching process, while beta-O-4, beta-5, and beta-beta structures undergo degradation only to a lesser extent, which implies that hydrogen peroxide bleaching using the catalyst is more effective in delignification of softwood pulps than hard wood pulps. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Xanosporic acid, an intermediate in bacterial degradation of the fungal phototoxin cercosporin

PHYTOCHEMISTRY, 62(5), 723–732.

author keywords: Xanthomonas campestris pv. zinniae; bacterial detoxification; perylenequinone; phototoxin; xanosporolactone; xanosporic acid
MeSH headings : Benz(a)Anthracenes / chemistry; Benz(a)Anthracenes / isolation & purification; Benz(a)Anthracenes / metabolism; Biodegradation, Environmental; Carboxylic Acids / chemistry; Carboxylic Acids / metabolism; Circular Dichroism; Fungi / chemistry; Lactones / chemistry; Lactones / isolation & purification; Nuclear Magnetic Resonance, Biomolecular; Oxidation-Reduction; Perylene / analogs & derivatives; Perylene / chemistry; Perylene / metabolism; Stereoisomerism; Xanthomonas campestris / metabolism
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

C-13-NMR study of hypoglycemia-induced glycolytic changes in embryonic mouse heart

TERATOLOGY, 66(5), 267–272.

By: G. Ghatnekar n, H. Gracz n & I. Smoak n

MeSH headings : Animals; Carbon Isotopes; Culture Media; Glucose / metabolism; Glycolysis / physiology; Heart / embryology; Hypoglycemia / embryology; Hypoglycemia / metabolism; Magnetic Resonance Spectroscopy; Mice; Mice, Inbred Strains; Myocardium / metabolism; Organ Culture Techniques
TL;DR: NMR effectively measures glucose and its metabolite, lactate, in the same spectrum and thus determines metabolic flux in the isolated embryonic heart after exposure to hypoglycemia and normoglycemic media, suggesting that 13C-NMR spectroscopy can be used to study glucose metabolism in isolated embryonic hearts exposed to hyp glucosecemia. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Investigation of Enhanced Free Volume in Nanosilica-Filled Poly(1-trimethylsilyl-1-propyne) by 129Xe NMR Spectroscopy

Macromolecules, 36(2), 353–358.

By: T. Merkel*, L. Toy*, A. Andrady*, H. Gracz n & E. Stejskal n

UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2001 journal article

Biobleaching of pulp with dioxygen in the laccase-mediator system - reaction mechanisms for degradation of residual lignin

JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC, 13(1-3), 1–16.

By: M. Balakshin n, E. Capanema n, C. Chen n, J. Gratzl n, A. Kirkman n & H. Gracz n

author keywords: pine Kraft-AQ pulp; biobleaching; dioxygen; laccase-mediator system (LMS); residual lignin; alkaline soluble lignins; changes in structures of lignins; reaction mechanisms
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Structural analysis of residual and technical lignins by H-1-C-13 correlation 2D NMR-spectroscopy

HOLZFORSCHUNG, 55(3), 302–308.

By: E. Capanema, M. Balakshin*, C. Chen*, J. Gratzl* & H. Gracz*

author keywords: technical lignin; residual lignin; 2D NMR spectra; diarylmethane structure
Source: Web Of Science
Added: August 6, 2018

journal article

Cyclodextrin facilitated electrospun chitosan nanofibers

Burns, N. A., Burroughs, M. C., Gracz, H., Pritchard, C. Q., Brozena, A. H., Willoughby, J., & Khan, S. A. RSC Advances, 5(10), 7131–7137.

By: N. Burns, M. Burroughs, H. Gracz, C. Pritchard, A. Brozena, J. Willoughby, S. Khan

Source: NC State University Libraries
Added: August 6, 2018

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