N. Afsar
N. Afsar has a total of 12 co-authors. Here are the top co-authors by number of shared publications:
D. Reuben Jonathan
Madras Christian Coll Autonomous, Res Dept Chem, Chennai 600059, Tamilnadu, India
2 shared publicationsJ. Irshad Ahamed
Annamalai Univ, Theivanai Ammal Coll Women Autonomous, Dept Chem, Chennai Trichy Trunk Rd, Villupuram 605401, Tamil Nadu, India
2 shared publicationsS. Manivannan
Dr Ambedkar Govt Arts Coll Autonomous, Res Dept Chem, Chennai 600039, Tamilnadu, India
2 shared publicationsSivalingam Ramesh
Dongguk Univ Seoul, Dept Mech Robot & Energy Engn, Seoul 04620, South Korea
2 shared publications- Abdulrahman Syedahamed Haja Hameed
PG and Research Department of Physics, Jamal Mohamed College, Tiruchirappalli 620 020, Tamil Nadu, India
1 shared publication - Arumugam Sivasamy
Catalysis Science Laboratory, CSIR-Central Leather Research Institute, Chennai, India
1 shared publication
Latest Publications
- 1 June 2023
- Published by Taylor & Francis in Polycyclic Aromatic Compounds
- Vol. 44 (4) , 2394-2418
Synthesis of Biologically Active α-Tetralone Condensate: Growth of Single Crystal, Characterization by Experimental and Simulation Methods
- 1 June 2023
- Published by Taylor & Francis in Polycyclic Aromatic Compounds
- Vol. 44 (4) , 2394-2418
Synthesis of Biologically Active α-Tetralone Condensate: Growth of Single Crystal, Characterization by Experimental and Simulation Methods
- Open Access
- 30 December 2022
- Published by MDPI AG in Nanomaterials
- Vol. 13 (1) , 166
Nanorod-like Structure of ZnO Nanoparticles and Zn8O8 Clusters Using 4-Dimethylamino Benzaldehyde Liquid to Study the Physicochemical and Antimicrobial Properties of Pathogenic Bacteria
To study their physicochemical and antimicrobial properties, zinc oxide nanoparticles were synthesized using a simple chemical route and 4-dimethylaminobenzaldehyde (4DB) as an organic additive. ZnO nanoparticles were characterized with XRD analysis, which confirmed the presence of a hexagonal wurtzite structure with different crystalline sizes. The SEM morphology of the synthesized nanoparticles confirmed the presence of nanorods in both modifications of ZnO nanoparticles. EDS analysis proved the chemical composition of the synthesized samples via different chemical approaches. In addition, the optical absorption results indicated that the use of 4DB increased the band gap energy of the synthesized nanoparticles. The synthesized Zn8O8 and Zn8O8:4DB clusters were subjected to HOMO–LUMO analysis, and their ionization energy (I), electron affinity (A), global hardness (η), chemical potential (σ), global electrophilicity index (ω), dipole moment (μ), polarizability (αtot), first-order hyperpolarizability (βtot), and other thermodynamic properties were determined. Furthermore, the antimicrobial properties of the ZnO nanoparticles were studied against G+ (S. aureus and B. subtilis) and G− (K. pneumoniae and E. coli) bacteria in a nutrient agar according to guidelines of the Clinical and Laboratory Standards Institute (CLSI).
- 30 December 2022
- Published by MDPI AG in Nanomaterials
- Vol. 13 (1) , 166
Open AccessNanorod-like Structure of ZnO Nanoparticles and Zn8O8 Clusters Using 4-Dimethylamino Benzaldehyde Liquid to Study the Physicochemical and Antimicrobial Properties of Pathogenic Bacteria
To study their physicochemical and antimicrobial properties, zinc oxide nanoparticles were synthesized using a simple chemical route and 4-dimethylaminobenzaldehyde (4DB) as an organic additive. ZnO nanoparticles were characterized with XRD analysis, which confirmed the presence of a hexagonal wurtzite structure with different crystalline sizes. The SEM morphology of the synthesized nanoparticles confirmed the presence of nanorods in both modifications of ZnO nanoparticles. EDS analysis proved the chemical composition of the synthesized samples via different chemical approaches. In addition, the optical absorption results indicated that the use of 4DB increased the band gap energy of the synthesized nanoparticles. The synthesized Zn8O8 and Zn8O8:4DB clusters were subjected to HOMO–LUMO analysis, and their ionization energy (I), electron affinity (A), global hardness (η), chemical potential (σ), global electrophilicity index (ω), dipole moment (μ), polarizability (αtot), first-order hyperpolarizability (βtot), and other thermodynamic properties were determined. Furthermore, the antimicrobial properties of the ZnO nanoparticles were studied against G+ (S. aureus and B. subtilis) and G− (K. pneumoniae and E. coli) bacteria in a nutrient agar according to guidelines of the Clinical and Laboratory Standards Institute (CLSI).