Poly(L-lactic acid)-BiFeO3/Ti3C2 Scaffolds for Antibacterial Sonodynamic Therapy DOI

Cijun Shuai,

Xingming Long,

Yingxin Yang

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(21), P. 25132 - 25142

Published: Oct. 25, 2024

Bacterial infection is a severe challenge after artificial transplantation due to the lack of an antibacterial functional implant, which results in delayed healing or even transplant failure. Herein, sonodynamic strategy was proposed by integrating BiFeO3/Ti3C2 heterojunction into three-dimensional-printed poly-L-lactic acid scaffold. BiFeO3 can be stimulated using ultrasonic energy generate carriers. Ti3C2, with good conductivity, form interfacial transfer channel BiFeO3, accelerating charge transfer. Additionally, forming Schottky barrier between and Ti3C2 effectively suppressed electron backflow. The separation electron–hole pairs significantly enhanced, thus improving yield reactive oxygen species. demonstrated that scaffold exhibited rates 93 91% against Gram-negative Escherichia coli Gram-positive Staphylococcus aureus exposed ultrasound, respectively. poly(L-lactic acid)-BiFeO3/Ti3C2 possessed biocompatibility showed great potential for bone regeneration.

Language: Английский

Sulfur Vacancy‐Induced Enhancement of Piezocatalytic H2 Production in MoS2 DOI Open Access
Sneha Mondal, K. Rajan, Lokanath Patra

et al.

Small, Journal Year: 2025, Volume and Issue: 21(11)

Published: Feb. 3, 2025

Abstract This study explores the role of S vacancies in MoS 2 enhancing its piezocatalytic efficiency. Sulfur crystal lattice introduce localized changes electronic structure and charge distribution, improving material's piezoelectric response. Characterization catalysts involved techniques like field‐emission scanning electron microscopy (FESEM), X‐ray diffraction (XRD), transmission (TEM), photoelectron spectroscopy (XPS). Electrochemical measurements, including impedance (EIS) Mott–Schottky (M‐S) analysis, are performed to assess performance. The also employed density functional theory (DFT) calculations investigate hydrogen adsorption properties with vacancies. results demonstrated that S‐deficient significantly enhanced H evolution. production rates different vacancy concentrations measured under ultrasonic vibration. sample an optimal concentration (MS‐1) exhibited highest rate 1423.29 µmol g −1 h , compared 439.06 for pristine (MS‐0). improved performance is attributed increased polarization efficient separation facilitated by

Language: Английский

Citations

4
Effect of Morphology Modification of BiFeO3 on Photocatalytic Efficacy of P-g-C3N4/BiFeO3 Composites DOI Open Access
Abubakar Usman Katsina, Diana‐Luciana Cursaru, Dănuța Matei

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(9), P. 4948 - 4948

Published: May 1, 2024

This current study assessed the impacts of morphology adjustment perovskite BiFeO3 (BFO) on construction and photocatalytic activity P-infused g-C3N4/U-BiFeO3 (U-BFO/PCN) heterostructured composite photocatalysts. Favorable formation U-BFO/PCN composites was attained via urea-aided morphology-controlled hydrothermal synthesis BFO followed by solvosonication-mediated fusion with already synthesized P-g-C3N4 to form composites. The prepared bare photocatalysts’ morphological, textural, structural, optical, performance were meticulously examined through various analytical characterization techniques photodegradation aqueous rhodamine B (RhB). Ellipsoids flakes morphological structures obtained for U-BFO BFO, their effects successful fabrication heterojunctions also established. exhibits 99.2% efficiency within 20 min visible-light irradiation, surpassing BFO/PCN (88.5%), PCN (66.8%), (26.1%). pseudo-first-order kinetics is 2.41 × 10−1 min−1, equivalent 2.2 times, 57 4.3 times (1.08 min−1), U-BFO, (4.20 10−3 PCN, (5.60 10−2 respectively. recyclability test demonstrates an outstanding photostability after four cyclic runs. improved exhibited can be attributed enhanced utilization additional accessible active sites due surface electronic band modification CN P-doping effective charge separation achieved formation.

Language: Английский

Citations

3
XYZ2 (X/Y = Ge, Pb, Sn; Z = Se, S, Te) Two-Dimensional Janus Monolayers for Photocatalytic Water Splitting: A First-Principles Study DOI

Yu Zhigang,

F. R. Xu,

Songli Dai

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136172 - 136172

Published: Jan. 1, 2025

Language: Английский

Citations

0
Efficient piezoelectric catalysis of micron-sized lead-free pervoskites: direct correlation between catalytic properties and piezoelectric constants DOI
Zhenya Wang, Weiping Gong,

Jianting Li

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 181229 - 181229

Published: May 1, 2025

Language: Английский

Citations

0
Defect-Boosted Piezoelectric and Nanozymatic Synergetic Catalysis for Deep Bacterial Abscess Therapy DOI
Chao Peng, Wenting Wu, Hong Huo

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: June 4, 2025

Piezocatalytic therapy, distinguished by its superior tissue penetration under ultrasound activation and low dependence on the oxygen concentration for generating multiple reactive species (ROS), has emerged as a promising strategy deep abscess treatment. However, efficacy remains constrained suboptimal bandgap, weak piezoelectric responses, inadequate surface-active sites. To address these limitations, facile Ru-atom doping is first proposed using Bi4O5Br2-based nanosystem (Bi4O5Br2@Ru) to tailor bandgap boost piezo- enzyme-like catalysis. The Ru dopants induce lattice distortions elevate vacancies simultaneously, thereby enhancing responses while conferring peroxidase (POD)- catalase (CAT)-like enzymatic activities. Under excitation, field optimizes conduction band alignment of Bi4O5Br2@Ru, POD-like activity generate ROS including ·OH, 1O2, ·O2-. mixed (III/IV) valence states in Bi4O5Br2@Ru glutathione depletion, further oxidative stress capacity combat biofilms. enhanced CAT-like alleviates hypoxia within biofilm microenvironments. RNA transcriptomic analysis confirms that disrupts energy metabolism interfering with tricarboxylic acid cycle. dual-modality therapy leverages engineering seamlessly combine properties catalytic functions, offering highly therapeutic treatment deep-seated infectious diseases.

Language: Английский

Citations

0
Synergetic effect of Fe2O3 and Na2WO4 piezo catalyst to remove pharmaceuticals waste in water DOI Creative Commons

Hawta K. Abdullah,

Sangar S. Ahmed, Omid Amiri

et al.

Energy Nexus, Journal Year: 2024, Volume and Issue: unknown, P. 100332 - 100332

Published: Oct. 1, 2024

Language: Английский

Citations

0
Poly(L-lactic acid)-BiFeO3/Ti3C2 Scaffolds for Antibacterial Sonodynamic Therapy DOI

Cijun Shuai,

Xingming Long,

Yingxin Yang

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(21), P. 25132 - 25142

Published: Oct. 25, 2024

Bacterial infection is a severe challenge after artificial transplantation due to the lack of an antibacterial functional implant, which results in delayed healing or even transplant failure. Herein, sonodynamic strategy was proposed by integrating BiFeO3/Ti3C2 heterojunction into three-dimensional-printed poly-L-lactic acid scaffold. BiFeO3 can be stimulated using ultrasonic energy generate carriers. Ti3C2, with good conductivity, form interfacial transfer channel BiFeO3, accelerating charge transfer. Additionally, forming Schottky barrier between and Ti3C2 effectively suppressed electron backflow. The separation electron–hole pairs significantly enhanced, thus improving yield reactive oxygen species. demonstrated that scaffold exhibited rates 93 91% against Gram-negative Escherichia coli Gram-positive Staphylococcus aureus exposed ultrasound, respectively. poly(L-lactic acid)-BiFeO3/Ti3C2 possessed biocompatibility showed great potential for bone regeneration.

Language: Английский

Citations

0