Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Glutathione (GSH), a tripeptide essential for maintaining redox balance in the human body, plays a critical role in protecting cells from oxidative stress. A deficiency in GSH is linked to increased oxidative damage and the progression of various disorders, including cancer and neurological diseases. Herein, gold nanoparticles (Au NPs) coated with GSH and further functionalized with galactose moieties are developed to selectively target glucose transporters (GLUT), which is overexpressed on the surface of the blood-brain barrier (BBB) and could be exploited for the selective recognition and internalization of the Au@GSH-Gal NPs, that could then exert an antioxidant effect. As a proof of concept, brain cancer cells are treated with Au@GSH-Gal NPs, evidencing their increased internalization and a significant reduction of HO-induced oxidative stress.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12247028PMC
http://dx.doi.org/10.1002/cbic.202500104DOI Listing

Publication Analysis

Top Keywords

gold nanoparticles
8
brain cancer
8
cancer cells
8
oxidative stress
8
au@gsh-gal nps
8
galactose-functionalized gold
4
nanoparticles targeting
4
targeting membrane
4
membrane transporters
4
transporters glutathione
4

Similar Publications

Statistical quantification of SERS signals in microfluidic flow using AuNP-bound polystyrene microparticles.

Anal Sci

September 2025

Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8526, Japan.

Surface-enhanced Raman scattering (SERS) is a powerful analytical technique; however, its quantitative application has been limited by the instability of substrates and significant signal fluctuations. In this study, we demonstrated that 4-aminobenzenethiol (4-ATP) can be quantitatively detected through statistical analysis of SERS signal intensity distributions obtained using citrate-stabilized AuNPs, biotin-functionalized AuNPs, and gold nanoparticle (AuNP)-bound polystyrene (PS) microparticles. Raman spectra obtained in bulk aqueous solution under static conditions showed that the detection sensitivity of 4-ATP using AuNP-bound PS microparticles was approximately twice that achieved with citrate-stabilized AuNPs or biotin-modified AuNPs.

View Article and Find Full Text PDF

The exclusive formation of artificial multicomponent assemblies remains a significant challenge, in contrast to the well-established organization observed in natural systems, due to intrinsic entropic constraints. To overcome this limitation, recent efforts have been focused on developing precision self-assembly strategies for the rational construction of such architectures. Here, we construct an ideal complementary pair of 2,2':6',2″-terpyridine (tpy)-based ligands by fine-tuning the substituent bulkiness, which enables the quantitative formation of robust nested cages through efficient dynamic heteroleptic complexation with multivalent coordination.

View Article and Find Full Text PDF

The efficient and sustainable remediation of contaminated water calls for catalytic systems that must clean broadly, endure widely, and last repeatedly. In this regard, we report the development of sulfonate-functionalized core-shell hydrogel beads embedded with synthesized gold nanoparticles (AuNPs) that exhibit intrinsic oxidase-like activity without requiring external light or chemical oxidants. The sulfonate ligands modulate the surface electronic environment of the AuNPs, facilitating singlet oxygen generation via a nonplasmonic, radiationless mechanism.

View Article and Find Full Text PDF

A series of molecular logic gates with multiple biocomputing capabilities have been successfully fabricated by using four antibiotic residues [tetracycline (TET), chloramphenicol (CHL), kanamycin (KAN), and streptomycin (STR)] as inputs. The lateral flow strip biosensor was utilized to realize the visual and portable sensing of logic events. Four basic logic gates (OR, AND, XOR, and INHIBIT) and three cascade logic circuits (OR-INHIBIT-AND, 3AND-OR, and XOR-INHIBIT-OR-AND) were constructed.

View Article and Find Full Text PDF

A surface enhanced Raman scattering (SERS)-based sensing platform is devised integrating a TMB redox system for rapid dopamine detection. Gold nanobipyramids (Au NBPs), synthesized via the heat-mediated seed-mediated growth method, possess dual functionality of peroxidase-like activity and SERS activity. This enables them to catalyze the oxidation of TMB and simultaneously amplify the Raman signal of the oxidized TMB product (oxTMB).

View Article and Find Full Text PDF