The promise of low-intensity ultrasound: A review on sonosensitizers and sonocatalysts by ultrasonic activation for bacterial killing

Wu, Wei; Zhu, Jun‐Jie; Peng, Danhong

doi:10.1016/j.ultsonch.2021.105781

Cited by 22 publications

(7 citation statements)

References 98 publications

(143 reference statements)

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“…The above inference was also supported and verified by the result in Figure . As for the US group, only a small part of the colonies decreased, which might be mainly attributed to the antibacterial effect of ultrasonic cavitation . On the contrary, the bacterial number in group BTO-400+US decreased significantly, showing an excellent antibacterial performance under US irradiation.…”

Section: Resultsmentioning

confidence: 99%

“…As for the US group, only a small part of the colonies decreased, which might be mainly attributed to the antibacterial effect of ultrasonic cavitation. 69 On the contrary, the bacterial number in group BTO-400+US decreased significantly, showing an excellent antibacterial performance under US irradiation. Figure S8 shows the detailed statistics of antibacterial efficacy against S. aureus and E. coli.…”

Section: Antibacterial Activity Of Bto-400mentioning

confidence: 95%

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Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Wang

Feng

et al. 2023

ACS Appl. Mater. Interfaces

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Multidrug-resistant bacteria caused by the unlimited overuse of antibiotics pose a great challenge to global health. An antibacterial method based on reactive oxygen species (ROS) is one of the effective strategies without inducing bacterial resistance. Owing to the ability of generating ROS, piezocatalytic material-mediated sonodynamic therapy (SDT) has drawn much attention. However, its major challenge is the low ROS generation efficiency in the piezocatalytic process due to the poor charge carrier concentration of piezoelectric materials. Vacancy engineering can regulate the charge density and largely promote ROS generation under ultrasound (US) irradiation. Herein, a US-responsive self-doped barium titanate with controlled oxygen vacancy (Vo) concentrations was successfully synthesized through a facile thermal reduction treatment at different temperatures (i.e., 350, 400, and 450 °C), and the corresponding samples were named as BTO-350, BTO-400, and BTO-450, respectively. Then, the effect of Vo concentrations on ROS generation efficiency during the piezocatalytic process was systematically studied. And BTO-400 was found to possess the highest piezocatalytic activity and excellent sonodynamic antibacterial performance against Escherichia coli and Staphylococcus aureus. Furthermore, its antibacterial mechanism was confirmed that the ROS generated under US could damage bacterial cell membrane and cause considerable leakage of cytoplasmic components and irreversible death of bacteria. Notably, the in vivo results illustrated that the BTO-400 could serve as an effective antibacterial agent and accelerate skin healing via SDT therapy. In all, the Vo defect-modified nano-BaTiO3 has a noticeable potential to induce a rapid and efficient sterilization as well as skin tissue repair by SDT.

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Section: Resultsmentioning

confidence: 99%

Section: Antibacterial Activity Of Bto-400mentioning

confidence: 95%

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Wang

Feng

et al. 2023

ACS Appl. Mater. Interfaces

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“…It is due to shock waves, local temperature rise, and shear forces developed during ultrasonication. 48 There is a significant influence of ultrasonic frequency and power on bacterial killing process. In the present study, only bacteria was also exposed to ultrasonic experiments in order to nullify such effects.…”

Section: Resultsmentioning

confidence: 99%

“…Sonication has adverse effect on bacterial growth. It is due to shock waves, local temperature rise, and shear forces developed during ultrasonication 48 . There is a significant influence of ultrasonic frequency and power on bacterial killing process.…”

Section: Resultsmentioning

confidence: 99%

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants

Sharma

Singhal

2022

J Am Ceram Soc

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A 0.5(Ba 0.7 Ca 0.3 )TiO 3 -0.5Ba(Zr 0.1 Ti 0.9 )O 3 (BCT-BZT) ceramic was studied for photocatalysis and piezocatalysis effects using dye degradation (methylene blue, rhodamine B, and methyl orange) and bacterial (Escherichia coli) disinfection from aqueous solution. To examine the effect of ferroelectric polarization, BCT-BZT powder was poled using the corona poling technique. Same time, BCT-BZT was converted into Ag/BCT-BZT composites as Ag induced surface plasmon resonance effect during photocatalysis. Piezocatalysis performance was assessed for dyes mineralization under ultrasonication. There was a significant impact of silver nanoparticles on the photo/piezocatalysis performance of BCT-BZT. Similarly, electric poling has also played a positive role in improving the photo/piezocatalysis in view of various dye degradation. These samples also showed effective antibacterial performance.

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“…TiO 2 , ZnO, porphyrin, xanthone, curcumin, hypocrellin, etc.) [76]. UV irradiation is one of the most well-described method in micropollutants decomposition which depends on many parameters of treated solution and operational parameters such as appropriate wavelength and energy [77].…”

Section: Ultrasonication Process Principlesmentioning

confidence: 99%

Degradation of Bisphenol A and Pyrene from Highway Retention Basin Water Using Ultrasound Enhanced by UV Irradiation

Copik

Kudlek

Dudziak

2022

Architecture, Civil Engineering, Environment

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Due to the so-called road run-off, many various contaminants including Bisphenol A (BPA) and Pyrene (PYR) could enter the environment and retention basins. It was also suggested in the literature that their removal by using conventional treatment methods could be problematic, and modern techniques should be developed. In this study, the first attempt to remove BPA and PYR by using ultrasonication as a single process and with UV irradiation assistance was performed. The results showed that after 30 min of sonication, the degradation rate of BPA reached 92% while PYR was completely removed, however, after 1 min of the treatment degradation rate of BPA was significantly higher than PYR. In the study effect of pulsed ultrasound was also evaluated and it was found that its effectiveness in micropollutants removal could be higher than ultrasonication in continuous mode. Research revealed that the maximum removal rate of BPA and PYR was obtained during the ultrasonication process combined with UV irradiation-30 min of treatment resulted in 95% of BPA degradation. However, toxicity assessment showed that with an increase in the treatment time, an increase of toxic effects occurs. This phenomenon might be related to degradation of by-products formation which were identified in the study.

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The promise of low-intensity ultrasound: A review on sonosensitizers and sonocatalysts by ultrasonic activation for bacterial killing

Cited by 22 publications

References 98 publications

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants

Degradation of Bisphenol A and Pyrene from Highway Retention Basin Water Using Ultrasound Enhanced by UV Irradiation

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The promise of low-intensity ultrasound: A review on sonosensitizers and sonocatalysts by ultrasonic activation for bacterial killing

Cited by 22 publications

References 98 publications

Defect-Modified nano-BaTiO3 as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Defect-Modified nano-BaTiO3 as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba0.7Ca0.3)TiO3–0.5Ba(Zr0.1Ti0.9)O3 composites towards the degradation of organic pollutants

Degradation of Bisphenol A and Pyrene from Highway Retention Basin Water Using Ultrasound Enhanced by UV Irradiation

Contact Info

Product

Resources

About

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Defect-Modified nano-BaTiO₃ as a Sonosensitizer for Rapid and High-Efficiency Sonodynamic Sterilization

Effect of ferroelectric polarization on piezo/photocatalysis in Ag nanoparticles loaded 0.5(Ba_0.7Ca_0.3)TiO₃–0.5Ba(Zr_0.1Ti_0.9)O₃ composites towards the degradation of organic pollutants