An Intelligent and Soluble Microneedle Composed of Bi/BiVO4 Schottky Heterojunction for Tumor Ct Imaging and Starvation/Gas Therapy-Promoted Synergistic Cancer Treatment

© 2024 Wiley‐VCH GmbH..

Phototherapy and sonodynamic therapy (SDT) are widely used for the synergistic treatment of tumors and have received considerable attention. However, an inappropriate tumor microenvironment, including pH, H2O2, oxygen, and glutathione levels, can reduce the therapeutic effects of synergistic phototherapy and SDT. Here, a novel Bi-based soluble microneedle (MN) is designed for the CT imaging of breast tumors and starvation therapy/gas therapy-enhanced phototherapy/SDT. The optimized Bi/BiVO4 Schottky heterojunction serves as the tip of the MN, which not only has excellent photothermal conversion ability and CT contrast properties, but its heterojunction can also avoid the rapid combination of electrons and hole pairs, thereby enhancing the photodynamic/sonodynamic effects. A degradable MN with excellent mechanical properties is fabricated by optimizing the ratios of poly(vinyl alcohol), poly(vinyl pyrrolidone), and sodium hyaluronate. Glucose oxidase (GOx) and diallyl trisulfide are loaded into the MN to achieve tumor starvation and gas therapy, respectively; And the controlled release of GOx and H2S can be achieved under ultrasound or near-infrared laser irradiation. The in vitro and in vivo results demonstrate that this multifunctional MN can achieve high therapeutic efficacy through starvation therapy/gas therapy-enhanced phototherapy/SDT. The designed multifunctional MN provides a prospective approach for synergistic phototherapy and SDT.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Advanced healthcare materials - 13(2024), 8 vom: 11. März, Seite e2303147

Sprache:

Englisch

Beteiligte Personen:

Hu, Tingting [VerfasserIn]
Jia, Lu [VerfasserIn]
Li, Heng [VerfasserIn]
Yang, Chunyu [VerfasserIn]
Yan, Yuening [VerfasserIn]
Lin, Huiming [VerfasserIn]
Zhang, Feng [VerfasserIn]
Qu, Fengyu [VerfasserIn]
Guo, Wei [VerfasserIn]

Links:

Volltext

Themen:

BBX060AN9V
CT imaging
Gas therapy
Hydrogen Peroxide
Journal Article
Microneedle
Schottky heterojunction
Starvation therapy

Anmerkungen:

Date Completed 28.03.2024

Date Revised 28.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/adhm.202303147

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366974394