Sono-heterogeneous Fenton system for degradation of AB74 dye over a new tetraaza macrocyclic Schiff base cellulose ligand-loaded Fe3O4 nanoparticles

Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe3O4 nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells

“…Compared to the neat Fe 3 O 4 NPs ( Figure f ) , the [Fe 3 O 4 NP‐INS‐(C 32 H 28 N 4 )] (5) ( Figure e ) displayed similar characteristic peaks. The strong peak observed around at 550 cm −1 could be attributed to the tetrahedral and octahedral strectching vibration of the Fe‐O bond of Fe 3 O 4 NPs …”

“…Moreover, Fe 3 O 4 NPs offer a high potential of application in biomedical and bioengineering fields, such as cancer thermotherapy, magnetic resonance imaging (MRI), labeling and sorting of cells, as well as separation of biomedical products . Among the practically used methods for the synthesis of Fe 3 O 4 NPs, the following main ones should be mentioned: co‐precipitation, solvothermal and Ionothermal . The co‐precipitation method is the most used technique to synthesize Fe 3 O 4 NPs because of its easy operation, lower reaction temperature and eco‐friendly procedure .…”

New sonochemical magnetite nanoparticles functionalization approach of dithiooxamide–formaldehyde developed cellulose: From easy synthesis to recyclable 4‐nitrophenol reduction

“…[ 11 ] DAC Schiff base condensations reactions have usually been carried out using primary amines [ 6–11 ] or primary diamines. [ 5,12–15 ] Dithiooxamide (or rubeanic acid NH 2 C (=S) C (=S) NH 2 )) is an organic molecule. [ 16 ] The existence of S and NH 2 as dithiooxamide functional groups is favored owing to the hard–soft acid base (HSAB) theory elaborated by Pearson.…”

“…[ 22 ] Generally speaking, combining magnetite nanoparticles (NPs) with natural or modified biopolymer chains gives rise to novel materials possessing consecutive improvement [ 23,24 ] in electrical, [ 25 ] thermal, [ 26 ] and mechanical [ 23 ] hosting material properties. Magnetite‐functionalized biopolymers seem to be easily eco‐friendly and recyclable green catalysts in organic compounds synthesis, [ 27–38 ] cancer therapy, [ 39 ] heavy metals removal [ 40–42 ] dyes degradation, [ 12,13,43 ] and epoxidation and oxidation catalytic processes. [ 44 ]…”

“…Besides, a review of the literature revealed several synthetic techniques of Fe 3 O 4 NPs such as coprecipitation, [ 12,13,15 ] hydrothermal, [ 47 ] spray pyrolysis technique, [ 48 ] microwave‐assisted method, [ 49 ] solvothermal method, [ 50 ] and polymerization oxidation. [ 51 ] Conventional synthetic methods fail to control the shape of Fe 3 O 4 NPs coated on an organic surface, extended reaction time, and magnetic NPs agglomeration.…”