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Preclinical and First-in-Human Study of a Compact Radionuclide Labeled Self-Assembly Nanomedicine for Chemo-Radio-Theranostics of Cancer.
ACS Nano
January 2025
Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, 119074, Singapore.
The emerging combination of chemotherapy and radionuclide therapy has been actively investigated to overcome the limitations of monotherapy and augment therapeutic efficacy. However, it remains a challenge to design a single delivery vehicle that can incorporate chemotherapeutics and radionuclides into a compact structure. Here, a chelator DOTA- or NOTA-modified Evans blue conjugated camptothecin molecule (EB-CPT) nanoprodrug was synthesized, which could self-assemble into nanoparticles due to its inherent amphiphilicity.
View Article and Find Full Text PDFA Subtype Specific Probe for Targeted Magnetic Resonance Imaging of M2 Tumor-Associated Macrophages in Brain Tumors.
Acta Biomater
January 2025
Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia 30322, United States of America; Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, United States of America. Electronic address:
Pro-tumoral M2 tumor-associated macrophages (TAMs) play a critical role in the tumor immune microenvironment (TIME), making them an important therapeutic target for cancer treatment. Approaches for imaging and monitoring M2 TAMs, as well as tracking their changes in response to tumor progression or treatment are highly sought-after but remain underdeveloped. Here, we report an M2-targeted magnetic resonance imaging (MRI) probe based on sub-5 nm ultrafine iron oxide nanoparticles (uIONP), featuring an anti-biofouling coating to prevent non-specific macrophage uptake and an M2-specific peptide ligand (M2pep) for active targeting of M2 TAMs.
View Article and Find Full Text PDFDevelopment of a gum tragacanth-coated nanoparticle system for controlled release of plant extracts against Erwinia amylovora.
Int J Biol Macromol
January 2025
Department of Nanotechnology, Faculty of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran. Electronic address:
Fire blight, caused by Erwinia amylovora, is a significant threat to fruit crops, with limited biocontrol methods. This study aimed to develop a nanosystem using mesoporous silica nanoparticles (MSNs) loaded with a phenolic plant extract (ZP) derived from Myrtus communis, Thymus vulgaris, and Curcuma longa, and coated with natural biopolymers Gum Tragacanth (GT) and sodium alginate (SA). The MSNs were synthesized and characterized by XRD, FTIR, and TEM, exhibiting a specific surface area of about 750 m/g and an average pore diameter of 5 nm.
View Article and Find Full Text PDFNanoparticle Association with Brain Cells Is Augmented by Protein Coronas Formed in Cerebrospinal Fluid.
Mol Pharm
January 2025
School of Life Sciences, University of Technology Sydney, Sydney 2007, New South Wales, Australia.
Neuronanomedicine harnesses nanoparticle technology for the treatment of neurological disorders. An unavoidable consequence of nanoparticle delivery to biological systems is the formation of a protein corona on the nanoparticle surface. Despite the well-established influence of the protein corona on nanoparticle behavior and fate, as well as FDA approval of neuro-targeted nanotherapeutics, the effect of a physiologically relevant protein corona on nanoparticle-brain cell interactions is insufficiently explored.
View Article and Find Full Text PDFTriple-Negative Breast Cancer Aptamer-Targeting Porous Silicon Nanocarrier.
ACS Appl Mater Interfaces
January 2025
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 381 Royal Parade, Parkville, Victoria 3052, Australia.
Common treatment approaches for triple-negative breast cancer (TNBC) are associated with severe side effects due to the unfavorable biodistribution profile of potent chemotherapeutics. Here, we explored the potential of TNBC-targeting aptamer-decorated porous silicon nanoparticles (pSiNPs) as targeted nanocarriers for TNBC. A "salt-aging" strategy was employed to fabricate a TNBC-targeting aptamer functionalized pSiNP that was highly colloidally stable.
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