Liquid Metal Amplified Charge Separation in Photocatalytic Micro/Nanomotors for Antibacterial Therapy DOI

Zichang Guo,

Dongdong Jin, Haohui Li

et al.

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

Published: May 19, 2025

Photocatalytic micro/nanomotors (MNMs) driven by electrophoresis have attracted considerable attention virtue of their active mobility and versatile functionality. However, the rapid recombination photogenerated electron-hole pairs on light illumination severely compromises involvement charge species in catalytic redox reactions fuels, thus hindering both propulsion application performance photocatalytic MNMs. Herein, we report a facile strategy to amplify separation incorporating liquid metal (LM) into construction MNMs, thereby strengthening electrophoretic MNMs promoting generation reactive oxygen (ROS) for antibacterial application. The are constructed with gallium (Ga) LM core, coated abundant graphite-phase carbon nitride (g-C3N4) nanosheets half covered thin platinum layer. These exhibit self-propulsion hydrogen peroxide (H2O2) solution, motion dynamics further enhanced irradiation. Theoretical calculations simulations reveal that composition between Ga g-C3N4 forms an ohmic junction electronic energy band structure, which effectively improves efficiency pairs. results align well experimental electrochemical tests consequently intensify H2O2, as accelerate migration across contributing enhancement performance. Simultaneously, amplified electrons facilitates increased ROS generation, empowering motion-enhanced activity against Escherichia coli. Finally, vivo wound healing experiment is conducted, verifying superior therapeutic This work not only provides insights role phoretic but also gives inspiration developing advanced biomedical applications.

Language: Английский

Dual functional nanoplatforms potentiate osteosarcoma immunotherapy via microenvironment modulation DOI Creative Commons
Shunyi Lu, Yuqi Yang,

Zhuorun Song

et al.

National Science Review, Journal Year: 2025, Volume and Issue: 12(3)

Published: Jan. 10, 2025

Osteosarcoma (OS), a highly aggressive bone tumor, presents significant challenges in terms of effective treatment. We identified that cellular autophagy was impaired within OS by comparing clinical samples through bioinformatic analyses and further validated the inhibition mitochondrial at transcriptomic level. Based on this finding, we investigated therapeutic potential dual functional metal nanoplatform (MnSx) to facilitate transition from protective effect low-level killing high-level OS. MnSx facilitated intracellular H2S generation via endocytosis, leading S-sulfhydration ubiquitin-specific peptidase 8 (USP8) subsequent promotion vitro. Additionally, activated cyclic guanosine monophosphate-adenosine monophosphate synthase (cGAS)-stimulator interferon genes (STING) pathway, enhancing autophagic response accelerating tumor cell death. Moreover, it demonstrated vivo MnSx, one hand, mediated activation USP8 H2S, while Mn2+ promoted maturation dendritic cells, cytotoxic T lymphocytes contributed eradication. Such could be suppressed inhibitor chloroquine. Importantly, synergistic combination therapy with immune checkpoint inhibitors showed promise for achieving complete remission This study highlights as dual-functional platform treatment offers novel directions future research field.

Language: Английский

Citations

2

Nano-/Microrobots for Environmental Remediation in the Eyes of Nanoarchitectonics: DOI Creative Commons
Anna Jančík Procházková, Katsuhiko Ariga

Research, Journal Year: 2025, Volume and Issue: 8

Published: Jan. 1, 2025

Nano-/microrobots have been demonstrated as an efficient solution for environmental remediation. Their strength lies in their propulsion abilities that allow active “on-the-fly” operation, such pollutant detection, capture, transport, degradation, and disruption. Another advantage is versatility, which allows the engineering of highly functional solutions a specific application. However, latter can bring complexity to applications; versatility dimensionality, morphology, materials, surface decorations, other modifications has crucial effect on resulting abilities, compatibility with environment, overall functionality. Synergy between decorations its projection functionality object nanoarchitectonics. Here, we scrutinize nano-/microrobots eyes nanoarchitectonics: list general concepts help assess synergy limitations individual procedures fabrication processes operation at macroscale. The nanoarchitectonics approached from microscopic level, focusing dimensionality through nanoscopic evaluating influence decoration nanoparticles quantum dots, moving molecular single-atomic level very fine tuning presented review aims lay provide overview advanced nano-/microrobot remediation beyond.

Language: Английский

Citations

2

Penetration enhanced nanomedicine through hypoxia regulated ligand-controllable shielding DOI

Sumeng Qian,

Zhendong Ren,

Sisi Ma

et al.

Journal of Drug Delivery Science and Technology, Journal Year: 2025, Volume and Issue: 105, P. 106604 - 106604

Published: Jan. 5, 2025

Language: Английский

Citations

1

Endogenous Protein‐Modified Gold Nanorods as Immune‐Inert Biomodulators for Tumor‐Specific Imaging and Therapy DOI Creative Commons
Chunyan Fang, Yueming Cai,

He Cui

et al.

Advanced Healthcare Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract Engineered modifications of nanomaterials inspired by nature hold great promise for disease‐specific imaging and therapies. However, conventional polyethylene glycol modification is limited immune system rejection. The manipulation gold nanorods (Au NRs) modified endogenous proteins (eP@Au) reported as an engineered biomodulator enhanced breast tumor therapy. results show that eP@Au NRs neither activate inflammatory factors in vitro nor elicit rejection responses vivo. Tumor‐specific exhibit a dual‐modal capability trigger mild photothermal effect under near‐infrared light irradiation, enabling highly efficient therapy tumors. Transcriptome sequencing confirmatory experiments reveal the antitumor mainly attributed to repression PI3K‐Akt/MAPK signaling pathways at molecular level. This powerful surprising situ eP‐regulated biomodulation demonstrates advantages convenient fabrication, inert immunogenicity, biocompatibility, providing alternative strategy biomedical

Language: Английский

Citations

1

Nano‐ and Micro‐Platforms in Therapeutic Proteins Delivery for Cancer Therapy: Materials and Strategies DOI Creative Commons
Huijie Han, Hélder A. Santos

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 12, 2024

Abstract Proteins have emerged as promising therapeutics in oncology due to their great specificity. Many treatment strategies are developed based on protein biologics, such immunotherapy, starvation therapy, and pro‐apoptosis while some biologics entered the clinics. However, clinical translation is severely impeded by instability, short circulation time, poor transmembrane transportation, immunogenicity. Micro‐ nano‐particles‐based drug delivery platforms designed solve those problems enhance therapeutic efficacy. This review first summarizes different types of proteins research stages, highlighting administration limitations. Next, various micro‐ nano‐particles described demonstrate how they can overcome The potential then explored efficacy combinational therapies. Finally, challenges future directions carriers discussed for optimized delivery.

Language: Английский

Citations

5

MOF-Derived Oxygen-Deficient Titania-Mediated Photodynamic/Photothermal-Enhanced Immunotherapy for Tumor Treatment DOI
Xin Jiang, Zhengjie Huang, Zhuqing Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(27), P. 34591 - 34606

Published: June 25, 2024

Immunotherapy has emerged as a revolutionizing therapeutic modality for cancer. However, its efficacy been largely limited by weak immune response and an immunosuppressive tumor microenvironment. Herein, we report metal–organic framework (MOF)-derived titanium oxide nanoparticle (MCTx NP) booster that can greatly improve the immunotherapy inducing "immunogenic cell death" (ICD) remodeling The NPs, inheriting characteristic structure of MIL-125 enriched with oxygen vacancies (OVs), demonstrate both high photothermal conversion efficiency reactive species (ROS) generation yield upon near-infrared (NIR) activation. Moreover, NPs release O2 reduce glutathione (GSH) in environment, showcasing their potential to reverse In vitro/vivo results MCTx directly kill cells effectively eliminate primary tumors exerting dual photodynamic/photothermal therapy under single NIR irritation. At same time, augment PD-L1 blockade potently ICDs reversing microenvironment, including promoting dendritic (DC) maturation, decreasing regulatory T (Tregs)' infiltration, increasing cytotoxic lymphocytes (CTLs) helper (Ths), resulting effective distant suppression. This work highlights NP-mediated photodynamic- photothermal-enhanced strategy treatment.

Language: Английский

Citations

4

Amorphous/Crystalline Urchin‐Like TiO2 SERS Platform for Selective Recognition and Efficient Identification of Glutathione DOI Open Access
Xiaoyu Song, Lei Xu, Li Li

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Glutathione serves as a common biomarkers in tumor diagnosis and treatment. The levels of its intracellular concentration permit detailed investigation the microenvironment. However, low polarization weak Raman scattering cross‐section make direct indirect detection challenging. This study designs an amorphous‐crystalline urchin‐like TiO 2 (AC‐UL‐TiO ) for accurate identification GSH GSSG. By synergistically regulating crystalline core amorphous shell, bandgap structure is optimized, thereby enhancing charge transfer efficiency. AC‐UL‐TiO demonstrates excellent SERS performance detecting dye molecules with good selectivity mixed analytes. enhancement factor (EF) R6G 6.89 × 10 6 , limit (LOD) −10 M. A SERS‐colorimetric dual‐modality platform developed based on @DTNB system to accurately monitor concentrations from 0 1000 µM, providing robust dual‐confirmation result. Importantly, combined principal component analysis method, can directly distinguish GSSG molecules. Besides, LOD are −8 M, which 100 times higher than that detection. These findings indicate holds potential trace microenvironments.

Language: Английский

Citations

0

FOF1-ATPase Biomolecular Motor: Structure, Motility Manipulations, and Biomedical Applications DOI
Xuhui Zhou, Miao Sun,

Xiu De Yang

et al.

Biomacromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 11, 2025

Biomolecular motors are dynamic systems found in organisms with high energy conversion efficiency. FOF1-ATPase is a rotary biomolecular motor known for its near 100% It utilizes the synthesis and hydrolysis of ATP to induce conformational changes proteins, thereby converting chemical into mechanical motion. Given their efficiency, autonomous propulsion capability, modifiable structures, have attracted significant attention potential biomedical applications. This Review aims introduce detailed structure FOF1-ATPase, explore various motility manipulation strategies, summarize applications biological detection cargo delivery. Additionally, innovative research methods proposed analyze motion mechanism more comprehensively, goal advancing Finally, this concludes key insights future perspectives.

Language: Английский

Citations

0

A novel Nitrogen-Doped Water-Soluble carbon dot for highly selective Recognition of Mg2+ by chelation conjugation enhancement effect (CCE) and its application in Synergistically enhanced photodynamic antibacterial DOI
Kezhen Zhang,

Xiaoyong Tian,

Peipei Xu

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112842 - 112842

Published: Jan. 1, 2025

Language: Английский

Citations

0

NIR-II Photoresponsive Antibacterial Coatings on Titanium Implants Using Strontium Titanate Metastructures DOI
Feiyang Hong, Honglian Wang, Xiaoyi Ma

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0