Abm Nazmul Islam

Khulna University | KU · Department of Chemistry

Schiff base ligands and their transition metal complexes have covered a large field in chemistry that is being noticed. Schiff base ligands are viewed as special ligands since they are easily prepared by condensation reaction between aldehyde derivatives and amines. However they have simple preparation method; but their versatile applications make...

A new series of [Ni(II)L2](1), [Cu(II)L2](2) and [Co(II)L2](3)(L = benzyl-2-((1E,4E)-1,5-diphenylpenta-1,4-dien-3-ylidene) hydrazine carbodithioate) Schiff base metal complexes have been synthesized. The ligand and its metal complexes were characterized by elemental analysis, 1H NMR, UV-Vis, FT-IR and magnetic moment, molar conductance and thermal...

Eight new peroxo complexes of the type [MO(O2)(Asp)L] have been synthesized and characterized by conductivity, magnetic moments, UV-Vis, IR, ESI-MS and 1H NMR spectra, TLC, and elemental analyses [M = Th(IV) and Zr(IV), Asp= deprotonated aspartic acid, L = quinoline, isoquinoline, 8-hydroxyquinoline, and 1,10-phenanthroline]. IR spectra indicate th...

Transition metal complexes of Ni(II) (1), Co(II) (2) and Cu(II) (3) supported by a Schiff base ligand, namely (E)-N-(4 (dimethylamino)benzylidene)-4H-1,2,4-triazol-4-amine (L) have been synthesized. The ligand has been characterized by various spectral studies (¹H-NMR, ¹³C-NMR, FTIR, UV-Vis and ESI-MS). The metal complexes have been characterized b...

Biogenically synthesized silver nanoparticles (AgNP) increase the fascination over chemical ones due to their facile and green synthetic process. This study reports the development of an eco-friendly and cost-effective synthesis of AgNPs using an aqueous extract of Citrus macroptera fruit peel, an agricultural waste, as a sole agent with both reduc...

Nature is considered as biological laboratory for the abundance in plants, algae, virus, yeast, and fungi. These biological resources are being used for the green synthesis of gold nanoparticles (AuNPs). Biological synthesis of AuNPs is popular amongst conventional chemical and physical methods for the availability of natural components. Bio-assist...

Coronaviruses (CoVs) belonging to the Betacoronavirus group, an unusually large RNA genome, are characterized by club-like spikes that project from their surface. An outbreak of a novel coronavirus 2019 (nCOVID-19) showing a unique replication strategy and infection has posed a significant threat to international health and the economy around the g...

Schiff base metal complexes are the most widely studied complexes in the past few decades due to their biochemical, analytical, radical scavenging activity and antimicrobial activity. The triazole parentage of Schiff base ligand and its transition metal complexes have been considered in a wide range of biological activities. Transition metal comple...

Averrhoa bilimbi fruit has been studied to find out a possible source of bioactive compounds against antimicrobial and cytotoxic activity. To achieve this goal, total phenolic content and total flavonoid content, antioxidant, antimicrobial and cytotoxic activities of five different fractionates such as methanolic crude, petroleum ether, chloroform,...

In this present study, the extracted oil from the mesocarp fibers was characterized by the determination of iodine, free fatty acid, ester and acid value found in a reasonable range which contained a remarkable amount of fatty acids. The Reichert-Meissl values were found zero indicating the lower rancidity properties of these oils. B. flabellifer c...

In present study, a quantitative evaluation of macro and micronutrients in Averrhoa bilimbi, Mimusops elengi and Carissa carandas tropical fruits have been presented. Concentration of the nutrients namely calcium, chromium, manganese, iron, nickel, zinc and two toxic heavy metals cadmium and lead present in the fruits are used as traditional folk m...

Volumetric and viscometric properties of L-Proline have been measured as a function of molar concentration (0.02M-0.1M) of L-Proline in aqueous alcohols (Methanol, Ethanol and Propanol) at different temperatures (293.15K, 303.15K, 308.15K, 313.15K and 323.15K). The apparent molar volumes (φv), limiting apparent molar volume (φv0), viscosity B-coeff...

The growth and development of human body is dependent on the protein, carbohydrate, vitamins and minerals. Fishes are one of the major sources of protein, vitamins and minerals for human. This study was conducted to know the effect of Mystus gulio fish fillet on growth performance of albino rats after feeding different concentrations of fish fillet...

This study was aimed to extract oil from Carica papaya L. seeds by solvent extraction with petroleum ether. The extraction process was carried out for 36 hours and reddish yellow coloured oil (24.01%) was obtained. Esterification and saponification of extracted seed oil can be carried out by using different catalyst. But in this study the extracted...

This study was aimed to extract oil from Carica papaya L. seeds by solvent extraction with petroleum ether. The extraction process was carried out for 36 hours and reddish yellow coloured oil (24.01%) was obtained. Esterification and saponification of extracted seed oil can be carried out by using different catalyst. But in this study the extracted...

Transition metal complexes of Co(II), Cu(II), Ni(II) and Zn(II) Containing Bidentate Schiff base, derived from the condensation of ethylenediamine and 4-anisaldehyde were synthesized and characterized by IR, UV-Vis., and some physical measurements. IR spectral studies show the binding sites of the Schiff base ligand with the metal ion. Molar conduc...

Four new mixed ligand complexes of Ni(II) have been prepared. The complexes were characterized on the basis of elemental analyses, conductivity measurements, magnetic measurements, infrared spectral and some physico-chemical analysis. The complexes showed strong to moderate activity against both the gram positive and gram negative bacteria indicati...