Heavy-Atom-Free Aza-BODIPY Polymeric Nanoparticles for Theranostic-Guided Photodynamic Cancer Therapy.

Photodynamic therapy (PDT) presents a noninvasive method for cancer treatment, characterized by high spatial selectivity and reduced side effects. However, conventional photosensitizers containing heavy atoms often pose risks of cellular toxicity, limiting their clinical translation. To address this, we developed a heavy-atom-free aza-BODIPY derivative () with a donor-acceptor-donor (D-A-D) structure, conjugated to poly(ethylene glycol)-succinic acid (mPEG-SA) to form amphiphilic .

Selenium-Substituted BOIMPY for Enhanced Photodynamic Therapy.

Seleno-substituted bis-(boron difluoride)-8-imidazo-dipyrro-methene (BOIMPY) derivatives displayed improved photophysical features over twisted-BOIMPY, such as greater Stokes shifts, while compromising radiative relaxation and intersystem crossing, making them suitable for imaging-guided photodynamic therapy (PDT). One exhibited improved Type I and Type II PDT against cancer cells when activated by near-infrared light. Its potential as a targeted PDT agent for cancer treatment is demonstrated by its remarkable phototoxicity in the nanomolar range and minimal dark toxicity.

Cannabidiol and Aza-BODIPY Coencapsulation for Photodynamic Therapy Enhancement in Liver Cancer Cells.

Photodynamic therapy (PDT) and cannabidiol (CBD) have been explored for their potential in synergistic cancer treatment. In this study, we employed CBD oil as a lipid phase, encapsulated within to create lipid-based nanoparticles. Here, CBD oil does two tasks: it acts as a pyroptosis agent to destroy liver cancer cells and as a lipid phase to dissolve the photosensitizer.

Unraveling the photophysical characteristics and biological applications of vinyl sulfones as viscosity sensors.

For the first time, a series of vinyl sulfone-NH-based push-pull fluorophores (4a-4d) were introduced for their potential use in biological applications. The fluorophores 4a-4d were readily synthesized upon reduction of the corresponding vinyl sulfones-NO (3a-3d), which were prepared by sulfonylation of nitrostyrene. Both types of probes can be prepared in high yields through a few steps with minimal cost.

Quercetin Nanoparticle-Based Hypoxia-Responsive Probe for Cancer Detection.

In this study, we developed functional nanomaterials via a phenolic-enabled nanotechnology strategy for hypoxia detection employing quercetin (QCT), an abundant flavonoid, as a polyphenolic system. The nano form of QCT was stabilized by coating it with polyethylene glycol (PEG) before loading it with a flavylium dye (Flav) as a pH indicator. The nanosystem, Flav@QCT-PEG, collapsed when it was in an acidic environment, i.

Hybrid Cyanine/Methotrexate Nanoparticles for Synergistic PDT/Chemotherapy of Breast Cancer.

Typically, nanomedicine was prepared using a nanocarrier to load cargo for specific purposes. In this work, a carrier-free nanosystem for imaging and photodynamic (PDT)/chemo combination therapy was developed using simple self-assembly of a dye and a chemotherapeutic agent. The resulting nanoparticles () exhibited a spherical morphology with a size of 240.