41 Result(s)
within
Muhammad Nawaz Tahir
Chemistry
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Reference Work Entry In depth
Inulin Type Fructan: A Versatile Functional Material for Food and Healthcare
Inulin type fructan (ITF), a plant derived polysaccharide, is a bio-inspired, versatile, and functional biomaterial. Chemically, ITF is glucopyranosyl-fructofuranoside polymer. ITF is very well-established pre...
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Living Reference Work Entry In depth
Quince Seed Mucilage: A Stimuli-Responsive/Smart Biopolymer
Biopolymers are functional materials that offer structural integrity to sense external stimuli such as temperature, pH, or ionic strength. Therefore, they are the ideal candidate for a variety of technological...
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Living Reference Work Entry In depth
Inulin Type Fructan: A Versatile Functional Material for Food and Healthcare
Inulin type fructan (ITF), a plant derived polysaccharide, is a bio-inspired, versatile, and functional biomaterial. Chemically, ITF is glucopyranosyl-fructofuranoside polymer. ITF is very well-established pre...
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Article
Synthesis, characterization, crystal structures and antibacterial activities of some Schiff bases with N2O2 donor sets
A series of Schiff base compounds were synthesized by the reaction of different 3,5-dihalosalicylaldehyde (halo atoms equal to Cl, Br and I) with polymethylenediamines of varying chain length. The Schiff bases...
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Article
Synthesis and crystal structure of bis-chalcone-derived fused-ring pyrazoline having an unusual substitution pattern
Pyrazolines are an important class of heterocyclic compounds with diverse applications. A novel bis-chalcone-derived fused ring pyrazoline has been obtained by the reaction of bis-chalcone with hydrazine hydra...
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Article
Synthesis, characterization, crystal structures and biological activities of eight-coordinate zirconium(IV) Schiff base complexes
Two eight-coordinate Zr(IV) complexes of tetradentate Schiff base ligands, bis(3-ethoxysalicylidene)-4,5-dimethyl-1,2-phenylenediamine (H2L) and bis(3-ethoxysalicylidene)-2,2-dimethyl-1,3-propanediamine (H2L′), w...
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Article
Zinc(II) complexes of 4-aminoantipyrine (AAP). Crystal structure of [Zn(AAP)2Cl2]
Zinc(II) complexes of 4-aminoantipyrine (AAP), [Zn(AAP)2X2] (X = Cl–, I–) and [Zn(AAP)(CN)2] · 2H2O were prepared and characterized by elemental analysis, IR and NMR (1H & 13C) spectroscopy. The crystal structure...
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Article
Synthesis, Crystal Structure, DFT Modeling and Biological Activity of a Trinuclear Copper(II) Azide Polymer Containing Imidazole and Bridging Imidazolate Ligands, [Cu3(Imz-H)4(Imz)2(N3)4]n
The title compound, [Cu3(Imz-H)4(Imz)2(N3)4]n (1) (Imz-H = imidazole) was prepared by the reaction of CuCl2·2H2O with imidazole and sodium azide, and its structure was determined by X-ray crystallography. The cry...
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Article
Synthesis, structural elucidation and biological activities of organotin(IV) derivatives of 4-(2-thienyl)butyric acid
A series of tri- and diorganotin(IV) derivatives of 4-(2-thienyl)butyric acid have been synthesized by the reaction of ligand acid with tri- and diorganotin salts in 1:1 and 2:1 molar ratios, respectively. The...
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Article
Synthesis, Structural Characterization, Theoretical Calculations and In Vitro Biological Activities of Organotin(IV) Complexes with [O,O] Donor Ligand
The present study deals with the synthesis of ligand 4-oxo-4-(thiazol-2-ylamino)butanoic acid and afterward its organotin(IV) carboxylates [Bu3SnL] (1), [Ph3SnL] (2), [Me2SnL2] (3), [Bu2SnL2] (4) and [Ph2SnL2] (5
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Article
Cellulose ether derivatives: a new platform for prodrug formation of fluoroquinolone antibiotics
Novel macromolecular prodrugs of the second-generation fluoroquinolone antibiotic ofloxacin were fabricated based on the hydrophilic biopolymers hydroxypropylcellulose (HPC) and hydroxyethylcellulose (HEC). HPC- ...
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Article
Novel high-loaded, nanoparticulate and thermally stable macromolecular prodrug design of NSAIDs based on hydroxypropylcellulose
Macromolecular prodrugs (MPDs) of aspirin and salicylic acid were synthesized by covalent attachment to hydroxypropylcellulose (HPC) using p-toluenesulfonyl chloride in N,N-dimethylacetamide. The present synthesi...
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Article
Open AccessOne pot light assisted green synthesis, storage and antimicrobial activity of dextran stabilized silver nanoparticles
Green synthesis of nanomaterials finds the edge over chemical methods due to its environmental compatibility. Herein, we report green synthesis of silver nanoparticles (Ag NPs) mediated with dextran. Dextran w...
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Article
Imidazole, pyrimidine and diazepine containing heteroaryl-substituted heterocyclic salts as efficient ligand precursors for Mizoroki–Heck coupling reaction: synthesis, structural characterization and catalytic activities
The nine new heteroaryl-substituted imidazolidinium (1a–c), pyrimidinium (2a–c) and diazepinium (3a–c) salts as N-heterocyclic carbene (NHC) precursors were synthesized in good yields and entirely characterized u...
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Article
Synthesis, spectroscopic characterization, X-ray crystal structure, biological screening and catalytic studies of organotin(IV) carboxylates of 3-(4-cyanophenyl) acrylic acid
A series of six organotin(IV) carboxylates [Me2SnL2] (1), [n-Bu2SnL2] (2), [n-Oct2SnL2] (3), [Me3SnL] (4), n-Bu3SnL (5) and [Ph3SnL] (6), where L = 3-(4-cyanophenyl) acrylic acid have been synthesized and charact...
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Article
Potential bioactive Vanillin–Schiff base di- and tri-organotin(IV) complexes of 4-((3,5-dimethylphenylimino)methyl)-2-methoxyphenol: synthesis, characterization and biological screenings
Eight different di- and triorganotin(IV) complexes of vanillin-Schiff base of the type R2SnClL and R3SnL [R = Me (1,6), n-Bu (2,7), Ph (3,8), tert-Bu (4), Cy (5) and L = 4-((3,5-dimethylphenylimino)methyl)-2-meth...
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Article
Hydroxypropylcellulose-aceclofenac conjugates: high covalent loading design, structure characterization, nano-assemblies and thermal kinetics
This article presents synthesis of novel macromolecular prodrugs of aceclofenac (an anti-inflammatory drug) onto hydroxypropylcellulose (HPC). The HPC-aceclofenac conjugates were prepared using an acylating ag...
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Article
Heptanuclear zinc cluster for growth of zincite and manganese-doped zincite thin films for sensor applications
The heptanuclear complex [(Zn7O2(OAc)10(dma)2] (dma = N,N-dimethylacetamide) was prepared sonochemically in 60 % yield by the reaction of zinc acetate dihydrate with N,N-dimethylacetamide in an appropriate molar ...
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Article
Synthesis and Crystal Structure of a Cyanido-Bridged Bimetallic Copper(II)–Silver(I) Complex of Imidazole and [Ag(CN)2]−: [Cu(Imidazole)4{Ag(CN)2}2]
A cyanido-bridged Cu(II)–Ag(I) bimetallic complex, [Cu(Imidazole)4{Ag(CN)2}2] has been prepared and structurally characterized. The compound crystallizes in the orthorhombic space group Pmna. The crystal structur...
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Article
Macromolecular prodrugs of aspirin with HPMC: A nano particulate drug design, characterization, and pharmacokinetic studies
This article presents the synthesis of novel hydroxypropylmethylcellulose (HPMC)-aspirin (ASP) conjugates, i.e. macromolecular prodrugs, through the reaction of HPMC with ASP after its in situ activation by 4-met...
