Forthcoming and Online First Articles

International Journal of Nano and Biomaterials

International Journal of Nano and Biomaterials (IJNBM)

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International Journal of Nano and Biomaterials (3 papers in press)

Regular Issues

  • Mechanical and Antibacterial Activity of Biodegradable Na-CMC: PVA Reinforced with Al2O3 Nanoparticles   Order a copy of this article
    by Hanaa Shuker Mahmood, Nadir Habubi 
    Abstract: Sodium carboxymethyl-cellulose /Polyvinyl alcohol composite (Na-CMC/PVA) reinforced with Al2O3 NPs was prepared by solution casting. The FTIR spectroscopy illustrates the characteristic bands for both Na-CMC and PVA. Some bands disappeared in the composite sample due to interaction between the blended polymers. Additional bands appeared in the reinforced samples attributed to the characteristic of metal-oxide vibrations indicated on reinforcement of polymer chains. The FE-SEM shows that the Na-CMC: PVA composite looked rubber-like, while the nanocomposite samples appeared more restricted by the Al2O3 nanoparticles, which restrict the sample elasticity, increases in stress yield and Young's modulus. The reinforced copolymer showed good, effective antibacterial against pathogenic bacteria. The antibacterial activity of E. coli, is more significant than Staph. aureus and Pseudomonas aeruginosa bacteria, and enhanced with increasing the nanoparticles ratio. The results indicated that Na-CMC/PVA- Al2O3 NPS could be applied as an antibacterial agent.
    Keywords: Na-CMC: PVA; FT-IR; Tensile; antibacterial.
    DOI: 10.1504/IJNBM.2024.10063915
     
  • Biosorption of Methylene Blue (MB) dye using agricultural waste Parkia speciosa: One factor at a time method (OFAT), Isotherm and Kinetic Studies   Order a copy of this article
    by Darshaleka Chellappa, Soundarajan Krishnan, Padmesh Tirunelveli Narayanapillai 
    Abstract: Wastewater from dye industries has become an ecological environmental issue. In this research, the agricultural waste
    Keywords: Biosorption; Methylene Blue; Isotherm; Kinetics.
    DOI: 10.1504/IJNBM.2024.10063916
     
  • The Optimum Nanomaterial Coating for Solar Thermal Device Absorber Plates: An Experimental Investigation   Order a copy of this article
    by Vikrant Katekar, Anand B. Rao, Vishal Sardeshpande 
    Abstract: Most solar thermal devices have absorber plates painted dull black. Nanoparticle’s large surface area improves heat transfer, stability, heating, and cooling. This study experimentally determines the type and optimal nanoparticle proportion to mix with dull black absorber plate paint to improve its thermal performance. This study uses aluminium oxide, copper oxide, and titanium oxide nanoparticles in 10%, 20%, 30%, 40%, and 50% proportions. This experimental investigation found that dull black paint with 30% aluminium oxide nanoparticles reached the highest average temperature of 55.30C compared to others in the open atmosphere. This plate also had the highest average temperature difference between the absorber plate and atmosphere (20.90C) temperature and the highest heat transfer by radiation (15 W). Thus, this investigation concludes that dull black paint with 30% aluminium oxide nanoparticles is the optimal solar thermal device absorber plate paint. This trial study suggests trying 30% aluminium oxide mixed with dull black paint on the absorber plate of other solar appliances like solar stills, solar dryers, solar cookers, and solar air heaters to improve their thermal performance.
    Keywords: Aluminium oxide; Copper oxide; Dull-black paint; Radiation heat transfer; Solar energy; Titanium dioxide.
    DOI: 10.1504/IJNBM.2024.10064873