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Structural molecules

A very complicated exoskeleton is excreted by arthropods, consisting of many layers of proteins and lipids and a nitrogen-containing polysaccharide known as chitin. The more massive, rigid parts of arthropod exoskeletons are strengthened by the deposition of calcium carbonate in their middle layers or by the tanning of the proteins by cross-linking of the protein chains by orthoquinones. [Pg.44]


R. L. Rowley, M. Henrichsen. Calculation of chemical potential for structured molecules using osmotic molecular dynamics simulations. Fluid Phase Equil 137 15, 1997. [Pg.797]

Semi-empirical methods may only be used for systems where parameters have been developed for all of their component atoms. In addition to this, semi-empirical models have a number of well-known limitations. Types of problems on which they do not perform well include hydrogen bonding, transition structures, molecules containing atoms for which they are poorly parametrized, and so on. We consider one such case in the following example, and the exercises will discuss others. [Pg.113]

Photosynthesis takes atmospheric carbon dioxide and incorporates it into organic molecules—the carbon dioxide is fixed into the carbohydrate. These molecules are then either converted into chemical energy or used as structural molecules. The first powers living systems the second is what living systems are composed of. [Pg.180]

Fig. 1.4 Disturbing effect of a cation (void circle) on water structure. Molecules 1 and 2 show reversed orientation... [Pg.30]

Metzger RM (1999) The prospects for unimolecular rectification. In Sasabe H (ed) Hyper-structured molecules I chemistry, physics, and applications. Gordon Breach Science Publishers, Amsterdam, pp 19-39... [Pg.82]

The answer is c. (Hardman, pp 1260—1262.) Paclitaxel is a large structural molecule that contains a 15 membered taxane ring system. This anti cancer agent is an alkaloid derived from the bark of the Pacific yew tree. Its chemotherapeutic action is related to the microtubules in the cell. Paclitaxel promotes microtubule assembly from dimers and causes microtubule stabilization by preventing depolymerization. As a consequence of these actions, the microtubules form disorganized bundles, which decreases... [Pg.98]

Molecules (a), (b), (c) and (d) are structural isomers. They share a common formula, namely C5H12O, but have different molecular structures. Molecule (e) has a different chemical formula (C6H14O) and hence cannot be classified as an isomer. [Pg.59]

Trigonal-bipyramidal species and nucleophilic displacement reactivity The 3c/4e cu-bonding motif can also be achieved in nonlinear polyatomics by backside attack of a nucleophile X - on a polar Y—Z bond of a conventional Lewis-structure molecule,... [Pg.289]

Initially, pigments had been found which could be rendered insoluble in organic media if they were converted into polar structures molecules containing sulfo or carboxylic acid groups form insoluble salts with alkaline earth metals or manganese ( lakes , Sec. 2.7). [Pg.344]

Polymer networks are formed from functional precursors by covalent bond formation [1], As a result, molecular weights and polydispersity increase and the system passes through a critical point, the gel point. At this point, an infinite structure (molecule) is formed for the first time. Beyond the gel point, the fraction of the infinite structure (the gel) increases at the expense of finite (soluble) molecules (the sol). The sol molecules become gradually bound to the gel and eventually all precursor molecules can become a part of the gel - the network. This is not always the case for different reasons sometimes sol is still present after all functional groups have reacted. In passing from the gel point to the final network not only the gel fraction increases, but also the network becomes denser containing increasing amounts of crosslinks and strands between them called elastically active network chains. [Pg.114]

Living organisms are highly ordered in a number of different ways. The order that we create in life comes at the expense of disorder in the universe. We create highly structured molecules from simple ones by degrading other highly structured molecules in nature into very simple ones. [Pg.29]

Figure 4. Helix axis projection of the chondroitin 4-sulfate crystal structure. Molecules with full and open bonds indicate up- and down-pointing chains. The large and small filled circles represent potassium ions and water molecules respectively. (Reproduced with permission from ref. 18. Copyright 1983 Academic Press Inc.)... Figure 4. Helix axis projection of the chondroitin 4-sulfate crystal structure. Molecules with full and open bonds indicate up- and down-pointing chains. The large and small filled circles represent potassium ions and water molecules respectively. (Reproduced with permission from ref. 18. Copyright 1983 Academic Press Inc.)...
Role of Neighboring Polysaccharide Molecules in Determining the Orientation of Tyrosine Residues During Coupling. These considerations suggest a third possible explanation for the exclusive formation of isodityrosine in the plant cell wall in vivo that the neighboring structural molecules of the wall constrain extensin to prevent dityrosine formation. This would mean that the biologically relevant substrate for peroxidase in the plant cell wall is not naked extensin but extensin complexed with another wall component, possibly an acidic polysaccharide to which the extensin would bind ionically. [Pg.44]

These analytical dilemmas interfere with the methods of alkaloid analysis. Each group of alkaloids has its own methods of extraction, isolation and crystallization, as well as detection in structure, molecule and dynamicity. Not all these stages are still possible in the majority of alkaloids. In recent years, many techniques have been used in alkaloid detection. There are atomic and molecular electronic spectroscopy, vibration spectroscopy and electron and nuclear spin orientation in magnetic fields, mass spectroscopy, chromatography, radioisotope and electrochemical techniques. Although important developments in methodology and... [Pg.128]

Thus, the caseins are relatively small, relatively hydrophobic, am-phipathic, randomly or flexibly structured molecules, with relatively low levels of secondary and tertiary structures. [Pg.149]

Bethell D, Schiffrin DJ, Kiely C, Brust M, Fink J (2001) Hyper-structured molecules II -chemistry, physics and applications 179... [Pg.380]

Nephrin is a basic structural molecule of the slit diaphragm. Mutations of the nephrin gene result in congenital nephrotic syndrome of the Finnish type. The structure and function of the slit diaphragm are described in detail in Section 2.7. [Pg.180]


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See also in sourсe #XX -- [ Pg.44 ]




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3D Molecule Representation of Structures

Antibodies, large molecule drug structure

Application of NMR to structure confirmation in some drug molecules

Atoms in molecules and structural formulae

Axon guidance molecules structure

Benzene centers, starburst glass molecule structure

Bilayered structures self-assembled molecules

Biological molecule structural characterization

Biological molecules and structures

Bond-line structures complex molecules

Bonds and the Structure of Molecules

Bromine molecule crystal structure

Cage molecules, structural chemistry

Cage molecules, structure

Chain structures molecules

Chemical Structure of the Permeant Molecule

Chemisorbed molecules structures

Chiral recognition molecule chemical structures

Chlorin molecules, structures

Chlorine molecule crystal structure

Comparing Energies of Structurally Different Molecules

Configuration Spaces for Molecules with Several Symmetrical Reference Structures

Conjugated molecules, electronic structure

Crystal structures of molecules

Crystal structures, molecules

D Structures of Molecules

DETERMINING THE STRUCTURE OF ORGANIC MOLECULES

Depicting Molecules and Ions with Lewis Structures

Diatomic molecules electronic structure

Diatomic molecules geometrical structure

Diatomic molecules structure

Drug molecules structure

Dye molecules, zeolite L channels structural properties

ELECTRONIC STRUCTURE OF DIATOMIC MOLECULES

Electron Dot Structures for Molecules

Electronic Structure of Atoms and Molecules

Electronic Structure of Conjugated Molecules

Electronic Structure of Organic Molecules

Electronic Structure of Organic Semiconductors Small Molecules

Electronic Structure of Small Molecules

Electronic structure of complex molecules

Electronic structures of molecules

Electronically excited molecules, structure

Equilibrium structures of polyatomic organic molecules

Evolution of Electronic Structure from Single Molecule to Molecular Solid

Excited molecules, structure of electronically

Flexible molecules, structure determination

Fluorine molecule crystal structure

Force field methods structurally different molecules

H. Stoll, Electronic structure calculations for molecules containing lanthanide atoms

Helical chains/molecules/structures

Heterocyclic molecules, structure

Hydrogen molecule Lewis structure

Hydrogen molecule crystal structure

Hydrogen molecule molecular structure

Internal Water Molecules as Integral Part of Protein Structures

Iodine molecule crystal structure

Lattice structure molecules

Lewis Structures of Molecules with Multiple Bonds

Lewis structure electron-deficient molecules

Lewis structure molecules with multiple bonds

Lewis structure molecules with single bonds

Lewis structures and the shapes of molecules

Linear molecule structure

Mass Spectra Structural Determination of Simple Molecules

Mobility and Form of Molecules in Relation to Lattice Structure

Model molecules, structures

Molecular Structure Molecules with Double Bonds

Molecular structure The three-dimensional arrangement of atoms in a molecule

Molecular structure Trigonal planar molecules

Molecular structure diatomic molecule

Molecular structure molecules Hybridization Isomers

Molecular structure of the myosin molecule

Molecular structure polar molecules

Molecule Kekule structures

Molecule Lewis structures

Molecule Representation of Structures

Molecule Representation of Structures Based on Electron Diffraction

Molecule condensed structures

Molecule electron-dot structures

Molecule line-bond structures

Molecule multiple bonds, Lewis structure

Molecule packing structure

Molecule simple, Lewis structure

Molecule skeletal structures

Molecule small, structured spectrum

Molecule-superconductor structures

Molecule/molecular unit structure

Molecules Lewis structures for

Molecules common structures/geometries

Molecules electronic structure, application

Molecules skeleton structure

Molecules structural similarity

Molecules structure and properties

Molecules structure, QSAR modeling

Molecules structure, QSAR modeling molecular descriptors

Molecules structure, QSAR modeling properties

Molecules structure, QSAR modeling statistical methods

Molecules structure, QSAR modeling validation

Molecules structure, spectrometric determination

Molecules structured

Molecules structures

Molecules structures

Molecules three-dimensional structure

Molecules, congested structures

Molecules, coupling structure

Molecules, electronic structures

Molecules, properties structural principles

Molecules, stereospecific structures

Molecules, structural descriptors

Nitrogen molecule crystal structure

Nitrogen molecule, electronic Structure

Noncovalent Interactions That Determine the Structure of a Protein Molecule in Water

Nucleic acids Large molecules composed structure

Octahedral molecule structure

Optimizing the Structures of Molecules

Organic molecules condensed structures

Organic molecules drawing structures

Organic molecules skeletal structures

Organic molecules, structure

Organometallic molecules, electronic structure

Oxadiazoles molecular glass structure, twin molecules

Oxygen molecule Lewis structure

Oxygen molecule crystal structure

PAMPA 50 Model Lipid Systems Demonstrated with 32 Structurally Unrelated Drug Molecules

Polyatomic molecule equilibrium structure

Polyatomic molecules electronic structure

Polyatomic molecules, vibronic structures

Polymer molecule, number structural units

Porphyrins molecules, structures

Probe molecule structures

Procollagen molecule structure

Protein molecules, tertiary structure

Related molecules, structural relationships

Related molecules, structural relationships among

Resonance Equivalent Lewis Structures for the Same Molecule

Resonance structures precursor molecules

Resonance theory, electronic structure molecules

Resorcinarene molecules structures

Ring compounds fused bicyclic molecules, structure

STRUCTURE OF THE TARGET MOLECULE

Search for Structurally Similar Molecules

Self-organized supramolecular structures organic molecules

Semiconductor molecule, structural motif

Significance of Small Molecule Crystal Structural Studies

Similarity of Small Molecules Based on Three-Dimensional Structure

Small Molecules Induce and Promote the Stability of i-Motif Structure

Small Molecules that Induce and Stabilize Z-DNA Structures

Small molecule complexes crystal structures

Small molecule crystal structures

Small-molecule compounds structural properties

Small-molecule crystal structures, data

Small-molecule crystal structures, data sources

Solving the Structures of Organic Molecules

Spiro molecules structure and properties

Stilbene-like molecules tetrahedral structure

Structural Features of SP Molecules

Structural Formulas of Molecules

Structural Shape of Polymer Molecules

Structural formulas of organic molecules

Structural formulas organic molecules

Structural properties of molecules

Structural relaxation time many-molecule dynamics

Structural studies, lead compounds molecules

Structural trends within molecules

Structure and Bonding in Organic Molecules

Structure and Properties of Organic Molecules

Structure and Shape of Molecules

Structure calculations polyatomic molecules

Structure determination of small molecules

Structure formation molecules organization

Structure gas-phase molecules

Structure geometry of small molecules

Structure half- and quarter-molecules

Structure of Liquids Containing Elongated Molecules

Structure of Long Molecules

Structure of Van der Waals Molecules

Structure of polymer molecules

Structure of simple molecules

Structure of the Water Molecule

Structure prediction flexible molecules

Structure, of a molecule

Structure-activity relationships small molecule drug

Structured molecules, classical mechanics

Structures Analysis of Molecules

Structures Involving Polyatomic Molecules and Ions

Structures and Formulas of Organic Molecules

Structures matrix molecule, interaction

Structures of Molecules Having Single Bonds

Structures of Molecules with Multiple Bonds

Structures of Organic Molecules

Structures of hydrogen-containing molecules

Structures of molecules

Supramolecular structures self-assembled lyotropic molecules

Supramolecular structures self-assembled molecules, chirality

Target molecule, structural assessment

Target molecules structures

Tertiary structure of protein molecules

Tetrahedral molecule structure

The Electronic Structure of Polyatomic Molecules

The Lewis Structures of Molecules, Cations and Anions, Including Oxyanions

The Problems of Measuring Hydrogen-Bond Lengths and Angles in Small Molecule Crystal Structures

The Structural Complexity of Organic Molecules

The Structure and Reactivity of Molecules

The Structure of Aromatic Molecules

The Structure of Matter Atoms and Molecules

The Structure of Molecules

The Structure of Single Molecules

The Structure of Typical Homopolar Molecules

The Structures of Organic Molecules

The Three-Dimensional Structure of Protein Molecules in Aqueous Solution

The hyperfine structures of molecules

The structures of polyatomic molecules

The structures of simple molecules

Thermal energies and the structures of molecules

Thermotropic liquid-crystal-forming molecules, structure

Three-Dimensional Structures of Molecules

Three-dimensional structures Bchl b molecules

Titanate molecule structures

Tools for Searching Two-Dimensional Chemical Structures of Small Molecules

Toxin molecule, probable structure

Triarylamine centers, starburst glass molecule structure

Trigonal bipyramid molecule structure

Trigonal planar molecule structure

Twin molecules molecular glass structure

Twin molecules organic light emitting diode structure

UV Spectra and the Structure of Organic Molecules

WATER MOLECULES FORM AN OPEN CRYSTALLINE STRUCTURE IN ICE

Water molecules crystal structure

Water molecules structures

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