Bi₂O₃ nano-flakes as a cost-effective antibacterial agent

Abstract

Bismuth oxide is an important bismuth compound having applications in electronics, photo-catalysis and medicine. At the nanoscale, bismuth oxide experiences a variety of new physico-chemical properties because of its increased...

Antibacterial Activity of Bismuth Oxide Nanoparticles Compared to Amikacin against Acinetobacter baumannii and Staphylococcus aureus

“…As seen in Figure 7, the zone of inhibition was (12) mm, followed by antibiotics alone (15) mm and Bi 2 O 3 NPs (20) mm. The interaction between antibiotics and nanoparticles is most likely to blame for this synergistic impact [25].…”

Synthesis of “Naked” TeO2Nanoparticles for Biomedical Applications

“…Nowadays, TeO 2 NPs are synthesized by various techniques such as biosynthesis, spray pyrolysis, thermal evaporation, sonochemistry, and pulsed laser ablation in liquids (PLAL). , Among these techniques, PLAL is the one that creates NPs with a clean surface (i.e., without any surfactants or impurities attached), allowing them to interact efficiently with their environment. This advantage is particularly suitable for catalytic − and antibacterial − applications.…”

Bi2O3@Bi2O2CO3 Heterostructure Electrode for Significant Enhancement of Electrochemical Capacity

“…Figure b showed the C 1s high-resolution XPS spectrum of CF@BOC-15 whose curves were fitted with CC (284.5 eV), C–O (285.9 eV), and CO (287.9 eV), distinguishing the indeterminate carbon in the C 1s spectrum of CF@Bi 2 O 3 (Figure S3b) shown as C–C (284.8 eV), C–O–C (285.8 eV), and O–CO (288.5 eV) . The two strong peaks in the Bi 4f spectrum of CF@Bi 2 O 3 (Figure S3c) at 159.0 and 164.3 eV could be attributed to Bi 4f 7/2 and Bi 4f 5/2 , , revealing the positive trivalent oxidation state of bismuth. As for Bi 4f of CF@BOC-15 (Figure c), the peaks at 159.0/164.3 and 159.5/164.8 eV could be attributed to Bi 3+ in Bi 2 O 3 and Bi 2 O 2 CO 3 , respectively. ,, As for the O 1s (Figure d), four peaks concentrated at 530.1, 531.1, 521.9, and 533.2 eV were attributed to Bi–O in Bi 2 O 2 CO 3 , CO 3 2– , and Bi–O–Bi in Bi 2 O 3 , and absorbed water, respectively. − In addition, the O 1s spectra in Figure S3d also showed two types of peaks (529.7 and 531.0 eV). , The former corresponded to Bi–O–Bi in Bi 2 O 3 , while the latter was identified as a surface hydroxyl group.…”

“…The peaks of 156.8/162.1 eV in the Bi 4f spectrum of CF@Bi were attributed to Bi 0 , while the peaks at 159.0/164.3 and 158.4/163.7 eV could attribute to Bi 3+ and Bi 2+ due to the oxidation of the Bi monomer surface (Figure S2). , With respect to CF@BOC-15, Bi, C, and O were detected throughout the measured spectrum (Figure S3a), and Bi 4f Bi 5d and Bi 4d peaks could be observed. Figure b showed the C 1s high-resolution XPS spectrum of CF@BOC-15 whose curves were fitted with CC (284.5 eV), C–O (285.9 eV), and CO (287.9 eV), distinguishing the indeterminate carbon in the C 1s spectrum of CF@Bi 2 O 3 (Figure S3b) shown as C–C (284.8 eV), C–O–C (285.8 eV), and O–CO (288.5 eV) .…”