Introduction to Amino Group
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Amino Group sentence examples within transform infrared spectroscopy
The Fourier-transform infrared spectroscopy analysis indicated hydroxyl, carboxyl and amino groups on its surface.
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Fourier-transform infrared spectroscopy confirmed the reaction between the amino groups of sericin and the maleic anhydride groups of polyethylene grafted maleic anhydride.
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Amino Group sentence examples within carboxylic acid group
Experiments using diverse experimental techniques have shown that protic solvents allow formation of the O-protomer (PABA protonated in the carboxylic acid group) stable in the gas phase, while aprotic solvents yield the N-protomer (protonated in the amino group) that is the most stable protomer in solution.
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The nucleophilic substitution reaction of amino groups, carboxylic acid groups, hydroxyl groups and phosphoric acid groups reduces the hydroxyl content on the surface of the glass powder to 0.
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Amino Group sentence examples within post translational modification
Protein α-N-methylation is an underexplored post-translational modification involving the covalent addition of methyl groups to the free α-amino group at protein N-termini.
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Because of their long lifespan, matrix proteins of the vascular wall, such as elastin, are subjected to molecular aging characterized by non-enzymatic post-translational modifications, like carbamylation which results from the binding of cyanate (mainly derived from the dissociation of urea) to protein amino groups.
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Amino Group sentence examples within advanced glycation end
terrestris were: determination of relative mobility in electrophoresis (RME), free amino groups using OPA method and advanced glycation end-products (AGEs) fluorescence.
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Hyperglycaemia provides a suitable environment for infections and the mechanisms of glucose toxicity include the formation of advanced glycation end-products (AGEs), which comprise non-enzymatically glycosylated proteins, lipids, and nucleic acid amino groups.
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Amino Group sentence examples within 3 aminopropyl triethoxysilane
The obtained results demonstrated the adsorption capacity due to the affinity of the chromium ions to the amino groups, and showed that co-condensation of tetraethoxysilane (TEOS) and 3-aminopropyl triethoxysilane (APTES) resulted in higher metal sorption capacity of the materials compared to post-synthesis grafting of aminopropyl groups onto the mesoporous silica particles.
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(3-aminopropyl)-triethoxysilane (APTES) was used as a modifier for the surface modification of SiO2 colloidal spheres, and the amino groups were grafted onto the surface of the colloidal spheres by chemical grafting.
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Amino Group sentence examples within ray photoelectron spectroscopy
The presence of amino groups was confirmed by elemental and TG analyses, IR and X-ray photoelectron spectroscopies.
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Batch experiments and X-ray photoelectron spectroscopy (XPS) results indicate that UO22+/ReO4- sorption was driven by the abundant amino groups and unsaturated metal sites in the MILP-3 composites.
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Amino Group sentence examples within density functional theory
Using the density functional theory method, it is shown that several types of intermolecular interactions are realized in the complex: between the PNA amino group and the nitro group of another PNA molecule, carbonyl groups, and PD nitrogen atoms.
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The adsorption of the two FQs by LNAEs complied with the competitive Langmuir isothermal model, and showed selective removal of CIP over OFL due to the additional negative charge-assisted hydrogen bond (CAHB) formed between the carboxyl group of LNAEs and the secondary amino group of CIP, in addition to the effects of electrostatic attraction and normal hydrogen bonds, according to quantitative studies and density functional theory analysis.
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Amino Group sentence examples within specific surface area
The results of EDS and elemental analysis confirmed the success of amino group coating; VSM magnetization after surface modification was 32 emu/g; BET results show that specific surface area is 236 m2/g, size 5 nm, and the pore volume is 0.
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Given the special performance of nanosilica with its small size, large specific surface area and high surface activity, nanosilica containing reactive amino group (denoted as SiO 2 –NH 2 ) and polysuccinimide were allowed to take part in polymerization reaction to afford SiO 2 –NH 2 modified polyaspartic acid (denoted as SiO 2 –NH 2 /PASP), a potential polymer scale inhibitor with good water solubility for industrial circulating water.
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Amino Group sentence examples within hydrogen bonds formed
The CpG base pairs are central to the binding due to multiple hydrogen bonds formed with the backbone carbonyl groups of Trp378 and Lys379, as well as the side chain ε-amino groups of Lys379 and Lys380 from C-clampHDBP1.
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The fact that IHSEs could be obtained by mixing UCS and APS while the mixture of SCS and APS was viscous fluid reveals difference of strength of ionic hydrogen bonds formed by unsaturated/saturated carboxyl groups with amino groups.
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Amino Group sentence examples within unidentified positively charged
We propose that both effectors bind to an unidentified positively charged site containing a reactive amino group in the low-O2 affinity T conformation of Hb.
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We propose that both effectors bind to an unidentified positively charged site containing a reactive amino group in the low-O2 affinity T conformation of the Hb.
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Amino Group sentence examples within multi walled carbon
Graphene oxide (GO) and carboxylic multi-walled carbon nanotubes (CMWCNTs) were functionalized through a condensation reaction to graft melamine (M) on the GO and CMWCNTs and form products (M-g-GO and M-g-CMWNTs, respectively) with amino groups.
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A new flame retardant, DM/PEI/MWCNT, was prepared by self-assembly method based on non-covalent interactions between hydroxyl and amino groups on the surface of hydroxyl multi-walled carbon nanotubes (MWCNT), polyethyleneimine (PEI) and diatomite (DM).
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Amino Group sentence examples within ring opening reaction
A silica based hydrophilic stationary phase bonding with 2,3-pyrazinedicarboxylic anhydride and amino groups was synthesized via amino-acid anhydride ring opening reaction.
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Significant findings The epoxy group in the KH560 can react with amino group in the KH550 through direct ring-opening reaction to form secondary amino group and hydroxyl, which could co-adsorb Ag nanoparticle by means of chelating structure, which exhibited superior Ag/PB interfacial characterization.
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Amino Group sentence examples within % w v
50%(w/v), with regard to clay-free terpolymers reflecting strong interactions between pendant hydroxyl, carbonly, tertiary amino groups of terpolymer matrix and silanol groups of SP.
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After the formation of covalent crosslinking amongst the amino groups of GEL and the dialdehyde groups of DAK-car with the blending ratio of 1:2 (GEL 4% w/v): (DAK-car 1% w/v), a remarkably (p < 0.
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Amino Group sentence examples within five membered ring
Propellanes with (1) a 2-methoxy-5-methylphenylcarbamate group at the “left” five-membered ring and various amino groups on the “right” side; (2) benzylamino or analogous amino moieties on the “right” side and various substituents at the left five-membered ring and (3) various urea derivatives at one five-membered ring were investigated.
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Amino Group sentence examples within Free Amino Group
Amino Group sentence examples within Primary Amino Group
Chitosan is unique with active primary amino groups that provide a location for the attachment of the side group, which helps to develop versatile materials with desired functionality; this feature allows the modification of its physicochemical characters and altering of its biological properties.
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Amino Group sentence examples within Terminal Amino Group
Then, the site-selective dimethylation blocked the N-terminal amino group of the digested peptides without affecting the amino groups of lysine.
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The structure shows a highly basic and concave surface flanking the active site, comprising several Lys residues of nsp14 and the N-terminal amino group of nsp10.
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Amino Group sentence examples within Protonated Amino Group
The adsorption process can be well fitted with the pseudo-second-order kinetic model and Langmuir mode, which is characterized by the coordination between Au (III) and S, N, O atoms in COF, as well as the electrostatic interaction between protonated amino groups and AuCl4− in acidic system.
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Results of the disk diffusion method, confocal microscopy and scanning electron microscopy show that both bactericidal and bacteriostatic behavior against both bacteria depend on the content and mobility of protonated amino groups.
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Amino Group sentence examples within Tertiary Amino Group
The diamines N,N-dimethyl-1,3-propanediamine and N,N-dimethyl-1,2-ethanediamine with one primary and one tertiary amino group remain homogenous during CO2 uptake with the addition of cosolvents (1-methyl-2-pyrrolidinone or sulfolane) and are further investigated for absorption and desorption performance compared with their corresponding aqueous solutions.
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This increase in Rm and Rdbl was mainly attributed to the deprotonation of the tertiary amino groups (-NR2H+) as a membrane functionality.
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Amino Group sentence examples within Surface Amino Group
Amino Group sentence examples within Containing Amino Group
This work can provide a tool for designing senors for bioactive compounds containing amino groups that are protonated at physiological pH.
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Meanwhile, the possible mechanism behind this MAOI activity has been explored and it is believed that the proper size of AuNCs with ligands containing amino groups can bind tightly with the entrance to active sites of MAO, blocking the enzyme interacting with its substrates, thereby realizing the function of MAOI.
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Amino Group sentence examples within Secondary Amino Group
Ow (w = water) hydrogen bonds with the secondary amino groups of the macrocycles, forming layers oriented parallel to the (001) plane.
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ABSTRACT In an attempt to improve the catalytic ability of (S)-N-(D-prolyl)-1-triflicamido-3-phenylpropan-2-amine, a catalyst previously reported by us for the asymmetric Michael addition of aldehydes to β-nitrostyrenes, 4 new molecules were designed and synthesized by increasing the distance between the triflicamide group and the secondary amino group in the catalyst.
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Amino Group sentence examples within Reactive Amino Group
The physicochemical properties of chitosan containing a lot of hydroxyl groups and reactive amino groups help to build the characteristic polymer networks.
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We propose that both effectors bind to an unidentified positively charged site containing a reactive amino group in the low-O2 affinity T conformation of Hb.
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Amino Group sentence examples within Charged Amino Group
Zinc-containing metalloenzyme carbonic anhydrase (CA) binds primary sulfonamides with extremely high, up to picomolar, affinity by forming a coordination bond between the negatively charged amino group and the zinc ion and making hydrogen bonds and hydrophobic contacts with other parts of the inhibitor molecule.
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A numerical evaluation of the strength of the interaction of these polyamines with negatively charged double-strand DNA revealed that this ordering of the potency corresponds to the order of the strength of the attractive interaction between phosphate groups of DNA and positively charged amino groups of the polyamines.
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Amino Group sentence examples within Two Amino Group
Its two amino groups and four carboxyl groups can be used as the binding sites of metal ions.
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41%, which can be determined as the chemical reactions of two amino groups in the glutamine structure with CO2 and also higher stability of Fe2O3@glutamine NPs compared to bare Fe2O3 NPs.
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Amino Group sentence examples within Abundant Amino Group
The chemical intermolecular interactions between the lignin functional groups and abundant amino groups in the PAMAM were verified by FTIR and viscosity measurements.
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Herein, a strategy is developed aiming at synthesizing protein-loading nanogels in a protein-friendly way in which proteins with abundant amino groups work as cross-linkers and react with polymers in phosphate buffer at room temperature without introducing any small organic molecules.
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Amino Group sentence examples within Exocyclic Amino Group
Interstrand cross-links arising from the reaction of the aldehyde residue of an abasic (apurinic or AP) site with the exocyclic amino groups of guanine or adenine residues on the opposing strand of duplex DNA have previously been characterized.
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In light of the fact that aristolochic acid forms DNA and RNA adducts by covalent binding of aristolochic acid metabolites to exocyclic amino groups of (deoxy)adenosine and (deoxy)guanosine, we hypothesize here that similar aristolochic acid adducts may exist with other purine‐containing molecules.
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Amino Group sentence examples within Active Amino Group
The method based on the determination of the amount of active amino groups using o-Phthaldialdehyde (OPA method) can be applied in practice to assess accurately the degree of proteolysis in cheeses.
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The PEI contained enough active amino groups, was grafted to the surface of PS@PDA, PS@PDA@PEI was then embedded with Ag by reducing AgNO 3 with NaBH 4.
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Amino Group sentence examples within Donating Amino Group
The incorporation of two electron-donating amino groups into the TPAN skeleton cause the luminogens to undergo a bathochromic shifted emission due to the formation of a D–A pattern.
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We report, synthesis of novel AIE active cyanostilbenes bearing benzimidazole moiety at one end and a phenyl group bearing electron-donating amino groups at the other terminal.
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Amino Group sentence examples within Variou Amino Group
Propellanes with (1) a 2-methoxy-5-methylphenylcarbamate group at the “left” five-membered ring and various amino groups on the “right” side; (2) benzylamino or analogous amino moieties on the “right” side and various substituents at the left five-membered ring and (3) various urea derivatives at one five-membered ring were investigated.
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Herein, we describe NiH-catalyzed migratory formal hydroamination of alkenyl amides achieved via chelation-assisted control, whereby various amino groups are installed at the γ-position of aliphatic chains.
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Amino Group sentence examples within Different Amino Group
Synthetic
significance of this heterocyclic system lies in the possibility for the
orthogonal functionalization of three different amino groups, allowing fine
structural tuning.
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