Relevant bibliographies by topics / NMR, Bioconjugation, Biomaterial, Solid state

Academic literature on the topic 'NMR, Bioconjugation, Biomaterial, Solid state'

Author: Grafiati
Published: 10 March 2023

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Journal articles on the topic "NMR, Bioconjugation, Biomaterial, Solid state"

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Xia, Hongying, and Gary D. Rayson. "Solid-state 113Cd NMR studies of metal-binding to a Datura innoxia biomaterial." Advances in Environmental Research 4, no. 1 (June 2000): 67–74. http://dx.doi.org/10.1016/s1093-0191(00)00010-1.

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Chakraborty, Arnab, Fabien Deligey, Jenny Quach, Frederic Mentink-Vigier, Ping Wang, and Tuo Wang. "Biomolecular complex viewed by dynamic nuclear polarization solid-state NMR spectroscopy." Biochemical Society Transactions 48, no. 3 (May 7, 2020): 1089–99. http://dx.doi.org/10.1042/bst20191084.

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Solid-state nuclear magnetic resonance (ssNMR) is an indispensable tool for elucidating the structure and dynamics of insoluble and non-crystalline biomolecules. The recent advances in the sensitivity-enhancing technique magic-angle spinning dynamic nuclear polarization (MAS-DNP) have substantially expanded the territory of ssNMR investigations and enabled the detection of polymer interfaces in a cellular environment. This article highlights the emerging MAS-DNP approaches and their applications to the analysis of biomolecular composites and intact cells to determine the folding pathway and ligand binding of proteins, the structural polymorphism of low-populated biopolymers, as well as the physical interactions between carbohydrates, proteins, and lignin. These structural features provide an atomic-level understanding of many cellular processes, promoting the development of better biomaterials and inhibitors. It is anticipated that the capabilities of MAS-DNP in biomolecular and biomaterial research will be further enlarged by the rapid development of instrumentation and methodology.
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Brune, Alicia B., Gregory P. Holland, Jeffery L. Yarger, and William T. Petuskey. "Structure and Properties in Synthetic MSUM and the Corresponding Biomaterial." MRS Advances 1, no. 36 (2016): 2551–56. http://dx.doi.org/10.1557/adv.2016.481.

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ABSTRACTAt the MRS Fall 2014 Meeting, Symposium E, we reported on morphologies, fragmentation, and hardness in synthetic hydrogen urate monohydrate (monosodium urate monohydrate, MSUM, or MSU) crystals. We are now presenting further characterization results, including some from the biomaterial that forms in humans with gout disease: The fanning of radiating blades (needles) in spherulitic grains of synthetic MSUM was examined by microscopy techniques. These and previous data are consistent with an interpretation in terms of the crystallographic parameters in the unit cell, and the presence of dislocation arrays at low angle boundaries. The kinetics of such branched growth is here related to thermodynamic properties and super-saturation levels. Secondary nucleation is an additional mechanism leading to more complex morphologies. Differences in overall growth rates, under conditions of either branched or single needle growth, are considered in relation to gout. Novel powder XRD and solid state NMR data show, respectively, preferred orientation in the biomaterial, and the potential of NMR for identifying and characterizing MSUM in specific environments, helping to resolve pending questions in gout. Present results are anticipated to be useful for designing bio-inspired and bio-mimetic materials, regarding morphologies, overall growth rates, and mechanical properties.
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Asakura, Tetsuo, Hironori Matsuda, Akira Naito, Hideyasu Okamura, Yu Suzuki, and Yunosuke Abe. "Recombinant Spider Silk Fiber with High Dimensional Stability in Water and Its NMR Characterization." Molecules 27, no. 23 (December 2, 2022): 8479. http://dx.doi.org/10.3390/molecules27238479.

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Spider dragline silk has unique characteristics of strength and extensibility, including supercontraction. When we use it as a biomaterial or material for textiles, it is important to suppress the effect of water on the fiber by as much as possible in order to maintain dimensional stability. In order to produce spider silk with a highly hydrophobic character, based on the sequence of ADF-3 silk, we produced recombinant silk (RSSP(VLI)) where all QQ sequences were replaced by VL, while single Q was replaced by I. The artificial RSSP(VLI) fiber was prepared using formic acid as the spinning solvent and methanol as the coagulant solvent. The dimensional stability and water absorption experiments of the fiber were performed for eight kinds of silk fiber. RSSP(VLI) fiber showed high dimensional stability, which is suitable for textiles. A remarkable decrease in the motion of the fiber in water was made evident by 13C solid-state NMR. This study using 13C solid-state NMR is the first trial to put spider silk to practical use and provide information regarding the molecular design of new recombinant spider silk materials with high dimensional stability in water, allowing recombinant spider silk proteins to be used in next-generation biomaterials and materials for textiles.
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Ganesan, Raja, Anirban Goutam Mukherjee, Abilash Valsala Gopalakrishnan, and Vasantha-Srinivasan Prabhakaran. "Solid-State NMR-Based Metabolomics Imprinting Elucidation in Tissue Metabolites, Metabolites Inhibition, and Metabolic Hub in Zebrafish by Chitosan." Metabolites 12, no. 12 (December 14, 2022): 1263. http://dx.doi.org/10.3390/metabo12121263.

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In this study, we demonstrated that chitosan-applied zebrafish (Danio rerio) tissue metabolite alteration, metabolic discrimination, and metabolic phenotypic expression occurred. The spectroscopy of solid-state 1H nuclear magnetic resonance (ss 1H-NMR) has been used. Chitosan has no, or low, toxicity and is a biocompatible biomaterial; however, the metabolite mechanisms underlying the biological effect of chitosan are poorly understood. The zebrafish is now one of the most popular ecotoxicology models. Zebrafish were exposed to chitosan concentrations of 0, 50, 100, 200, and 500 mg/L, and the body tissue was subjected to metabolites-targeted profiling. The zebrafish samples were measured via solvent-suppressed and T2-filtered methods with in vivo zebrafish metabolites. The metabolism of glutamate, glutamine, glutathione (GSH), taurine, trimethylamine (TMA), and its N-oxide (TMAO) is also significantly altered. Here, we report the quantification of metabolites and the biological application of chitosan. The metabolomics profile of chitosan in zebrafish has been detected, and the results indicated disturbed amino acid metabolism, the TCA cycle, and glycolysis. Our results demonstrate the potential of comparative metabolite profiling for discovering bioactive metabolites and they highlight the power of chitosan-applied chemical metabolomics to uncover new biological insights.
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Asakura, Tetsuo. "Structure of Silk I (Bombyx mori Silk Fibroin before Spinning) -Type II β-Turn, Not α-Helix-." Molecules 26, no. 12 (June 17, 2021): 3706. http://dx.doi.org/10.3390/molecules26123706.

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Recently, considerable attention has been paid to Bombyx mori silk fibroin by a range of scientists from polymer chemists to biomaterial researchers because it has excellent physical properties, such as strength, toughness, and biocompatibility. These appealing physical properties originate from the silk fibroin structure, and therefore, structural determinations of silk fibroin before (silk I) and after (silk II) spinning are a key to make wider applications of silk. There are discrepancies about the silk I structural model, i.e., one is type II β-turn structure determined using many solid-state and solution NMR spectroscopies together with selectively stable isotope-labeled model peptides, but another is α-helix or partially α-helix structure speculated using IR and Raman methods. In this review, firstly, the process that led to type II β-turn structure by the authors was introduced in detail. Then the problems in speculating silk I structure by IR and Raman methods were pointed out together with the problem in the assignment of the amide I band in the spectra. It has been emphasized that the conformational analyses of proteins and peptides from IR and Raman studies are not straightforward and should be very careful when the proteins contain β-turn structure using many experimental data by Vass et al. In conclusion, the author emphasized here that silk I structure should be type II β-turn, not α-helix.
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Cerofolini, Linda, Kiefer Ramberg, Luis Padilla, Pawel Antonik, Enrico Ravera, Claudio Luchinat, Marco Fragai, and Peter B. Crowley. "Solid-State NMR – a Complementary Technique for Protein Framework Characterization." Chemical Communications, 2023. http://dx.doi.org/10.1039/d2cc05725e.

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Protein frameworks are an emerging class of biomaterial with medical and technological applications. Frameworks are studied mainly by X-ray diffraction or scattering techniques. Complementary strategies are required. Here, we report...
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Asensio, Gerardo, Ana M. Hernández-Arriaga, Marcela Martín-del-Campo, M. Auxiliadora Prieto, Luis Rojo, and Blanca Vázquez-Lasa. "A study on Sr/Zn phytate complexes: structural properties and antimicrobial synergistic effects against Streptococcus mutans." Scientific Reports 12, no. 1 (November 23, 2022). http://dx.doi.org/10.1038/s41598-022-24300-8.

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AbstractPhytic acid (PA) is an abundant natural plant component that exhibits a versatility of applications benefited from its chemical structure, standing out its use as food, packing and dental additive due to its antimicrobial properties. The capacity of PA to chelate ions is also well-established and the formation and thermodynamic properties of different metallic complexes has been described. However, research studies of these compounds in terms of chemistry and biological features are still demanded in order to extend the application scope of PA complexes. The main goal of this paper is to deepen in the knowledge of the bioactive metal complexes chemistry and their bactericide activity, to extend their application in biomaterial science, specifically in oral implantology. Thus, this work presents the synthesis and structural assessment of two metallic phytate complexes bearing the bioactive cations Zn2+ and Sr2+ (ZnPhy and SrPhy respectively), along with studies on the synergic biological properties between PA and cations. Metallic phytates were synthesized in the solid-state by hydrothermal reaction leading to pure solid compounds in high yields. Their molecular formulas were C6H12024P6Sr4·5H2O and C6H12024P6Zn6·6H2O, as determined by ICP and HRES-TGA. The metal coordination bond of the solid complexes was further analysed by EDS, Raman, ATR-FTIR and solid 13C and 31P-NMR spectroscopies. Likewise, we evaluated the in vitro ability of the phytate compounds for inhibiting biofilm production of Streptococcus mutans cultures. Results indicate that all compounds significantly reduced biofilm formation (PA < SrPhy < ZnPhy), and ZnPhy even showed remarkable differences with respect to PA and SrPhy. Analysis of antimicrobial properties shows the first clues of the possible synergic effects created between PA and the corresponding cation in different cell metabolic processes. In overall, findings of this work can contribute to expand the applications of these bioactive metallic complexes in the biotechnological and biomedical fields, and they can be considered for the fabrication of anti-plaque coating systems in the dentistry field.
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Grienenberger, Etienne, and Teagen D. Quilichini. "The Toughest Material in the Plant Kingdom: An Update on Sporopollenin." Frontiers in Plant Science 12 (September 3, 2021). http://dx.doi.org/10.3389/fpls.2021.703864.

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The extreme chemical and physical recalcitrance of sporopollenin deems this biopolymer among the most resilient organic materials on Earth. As the primary material fortifying spore and pollen cell walls, sporopollenin is touted as a critical innovation in the progression of plant life to a terrestrial setting. Although crucial for its protective role in plant reproduction, the inert nature of sporopollenin has challenged efforts to determine its composition for decades. Revised structural, chemical, and genetic experimentation efforts have produced dramatic advances in elucidating the molecular structure of this biopolymer and the mechanisms of its synthesis. Bypassing many of the challenges with material fragmentation and solubilization, insights from functional characterizations of sporopollenin biogenesis in planta, and in vitro, through a gene-targeted approach suggest a backbone of polyhydroxylated polyketide-based subunits and remarkable conservation of biochemical pathways for sporopollenin biosynthesis across the plant kingdom. Recent optimization of solid-state NMR and targeted degradation methods for sporopollenin analysis confirms polyhydroxylated α-pyrone subunits, as well as hydroxylated aliphatic units, and unique cross-linkage heterogeneity. We examine the cross-disciplinary efforts to solve the sporopollenin composition puzzle and illustrate a working model of sporopollenin’s molecular structure and biosynthesis. Emerging controversies and remaining knowledge gaps are discussed, including the degree of aromaticity, cross-linkage profiles, and extent of chemical conservation of sporopollenin among land plants. The recent developments in sporopollenin research present diverse opportunities for harnessing the extraordinary properties of this abundant and stable biomaterial for sustainable microcapsule applications and synthetic material designs.
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Dissertations / Theses on the topic "NMR, Bioconjugation, Biomaterial, Solid state"

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Giuntini, Stefano. "Bioconjugates and biomaterials with potential medical applications for the development of new NMR methodologies." Doctoral thesis, 2019. http://hdl.handle.net/2158/1151432.

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This work describes a methodology of employment of solid-state NMR spectroscopy as tool for the atomic detailed characterization of bioconjugates with potential pharmaceutical interest (such as PEGylated, nanoparticle-conjugated and glycosylated proteins) and bioinspired materials used as medical devices or enzyme-entrapped based targets for drug screening and discovery.
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Book chapters on the topic "NMR, Bioconjugation, Biomaterial, Solid state"

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"Structural Studies of Peptides on Biomaterial Surfaces Using Double-Quantum Solid-State Nuclear Magnetic Resonance Spectroscopy." In NMR Spectroscopy of Biological Solids, 135–62. CRC Press, 2005. http://dx.doi.org/10.1201/9781420027617-8.

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