Folate-targeted optical and magnetic resonance dualmodality PCL-b-PEG micelles for tumor imaging

Synthesis and Characterization of Sulfonamide-Containing Naphthalimides as Fluorescent Probes

A tumor-targeting fluorescent probe has attracted increasing interest in fluorescent imaging for the noninvasive detection of cancers in recent years. Sulfonamide-containing naphthalimide derivatives (SN-2NI, SD-NI) were synthesized by the incorporation of N-butyl-4-ethyldiamino-1,8-naphthalene imide (NI) into sulfonamide (SN) and sulfadiazine (SD) as the tumor-targeting groups, respectively. These derivatives were further characterized by mass spectrometry (MS), nuclear magnetic resonance spectroscopy (1H NMR), Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV), and a fluorescence assay. In vitro properties, including cell cytotoxicity and the cell uptake of tumor cells, were also evaluated. Sulfonamide-containing naphthalimide derivatives possessed low cell cytotoxicity to B16F10 melanoma cells. Moreover, SN-2NI and SD-NI can be taken up highly by B16F10 cells and then achieve good green fluorescent images in B16F10 cells. Therefore, sulfonamide-containing naphthalimide derivatives can be considered to be the potential probes used to target fluorescent imaging in tumors.

PAA-g-PLA amphiphilic graft copolymer: synthesis, self-assembly, and drug loading ability

This article reports the synthesis of a PAA-g-PLA amphiphilic polymer by the combination of RAFT polymerization and organocatalytic ROP, which could self-assemble into spheres in aqueous media for sustained release of doxorubicin.

Enhancing MRI of liver metastases with a zwitterionized biodegradable dendritic contrast agent

The MRI enhanced by a zwitterionized dendritic contrast agent clearly indicates metastatic tumors in the liver.

Synthesis of an amphiphilic graft copolymer bearing a hydrophilic poly(acrylate acid) backbone for drug delivery of methotrexate

This article reports the synthesis of a PAA-g-PLA amphiphilic graft polymer, which could self-assemble into large compound micelles in aqueous media for sustained release of MTX.

Poly(d,l-lactic acid)-block-poly(N-(2-hydroxypropyl)methacrylamide) nanoparticles for overcoming accelerated blood clearance and achieving efficient anti-tumor therapy

The substitution of PEG with PHPMA maintained the long circulation of PDLLA-b-PEG and alleviated the accelerated blood clearance (ABC).

A bimodal MRI and NIR liposome nanoprobe for tumor targeted molecular imaging

The combination of complementary MRI and NIR imaging methods evolved to provide an even more powerful bioimaging tool.

Integration of nanoassembly functions for an effective delivery cascade for cancer drugs

A "cluster-bomb"-like lipid-dendrimer nanoassembly synergizes the functions of its components and thereby efficiently accomplishes the drug delivery cascade for high efficacy in treating cancer. The nanoassembly successfully circulates in the blood and accumulates in the tumor. Once in the tumor, it releases small dendrimers that act like "bomblets", enabling tumor penetration, cell internalization, and drug release.