| Autor: |
Das, Pronabananda, Sen, Sapan Kumar, Manir, Md. Serajum, Islam, Md. Shahinur, Al Mortuza, Abdul, Sultana, Nasrin, Hossain, Md. Liakat, Ahsan, Md. Tanvir, Hasan, M. R., Islam, ATM Fayezul, Mamun, ANK, Hakim, M. A. |
| Zdroj: |
BioNanoScience; March 2024, Vol. 14 Issue: 1 p102-118, 17p |
| Abstrakt: |
Nanotechnology has become a newly diversified field due to its potential uses in healthcare, the environment, and agriculture. In this article, we have reported the impacts of shape, size, and phase of three types of TiO2nanoparticles (anatase, aeroxide p25, and degussa p25) on the germination and seedling growth of Nonabokra rice (Oryza sativaL.) plants, the mortality rate of Callosobruchus chinensis, antimicrobial effectiveness, and cytotoxicity test on brine shrimp (Artemia salina). Phase identification and crystallographic parameters of these TiO2nanoparticles were evaluated from X-ray diffraction (XRD) patterns. Anatase, aeroxide p25, and degussa p25 TiO2have crystallite sizes calculated using the Debye-Scherrer formula that are 49.26, 21.11, and 21.01 nm, respectively. Lattice strain and dislocation density are inversely linked to crystallite size. The spherical and agglomeration nanoparticle form morphologies of the corresponding pure and mixed phases of TiO2were confirmed using field emission scanning electron microscopy (FE-SEM). The impact of TiO2on germination rates and seedling growth was investigated on Nonabokra rice. The smaller sized (21 nm) agglomerated (aeroxide p25 and degussa p25) TiO2nanoparticles exhibited better germination rates, reaching almost on average 91.93% of aeroxide p25 TiO2and 88.32% of degussa p25 in comparison to the large-sized (49.26 nm) spherical anatase TiO2nanoparticles (germination rate on average 86.76%). According to this study, the aeroxide p25 TiO2has a greater positive impact on rice seedling growth than its counterpart materials. The maximum fresh weight (FW) and dry weight (DW) of seedlings observed for aeroxide p25 TiO2were 166.97 and 27.50 g, respectively. Aeroxide p25 TiO2nanoparticles had a substantial impact on the mortality rate of Callosobruchus chinensis, resulting in 100% death after 14 days of treatment and indicating a potential use for this nanostructured material in the control of insect pests. The antibacterial effectiveness of these three types of TiO2was investigated against two Gram-positive: S. aureusand E. faecalisand two Gram-negative: E. coliand P. aeruginosabacteria and observations indicated that TiO2has no antibacterial capabilities; hence, it cannot prevent bacterial growth. In a cytotoxicity test on brine shrimp, the mixed phase of TiO2(aeroxide p25) was found to be less toxic than anatase TiO2. We found that TiO2nanoparticles have a considerable favorable influence on the environment, playing a vital role in getting improved growth effects on rice seedlings and suppressing a major insect pest of pulses. |
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