Engineering Amphiphilic Gold Thiolate Clusters for Enhanced Luminescence and Controlled Assembly DOI Creative Commons

Didarul Islam,

Md. Hafizul Islam

Chemical Physics Impact, Journal Year: 2025, Volume and Issue: unknown, P. 100877 - 100877

Published: April 1, 2025

Language: Английский

Ligand-to-Metal Charge Transfer Controls the Photophysical Properties and HER Activity of Ag13 Nanoclusters Depends on the Hydrogen Adsorption Energy DOI

Aarti Devi,

Harshita Seksaria,

Rashi

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 2561 - 2569

Published: March 3, 2025

The hydrogen evolution reaction (HER) activity of ligand-protected metal nanoclusters (NCs) has been emphasized, where the ligands influence electronic properties and adsorption energy during catalytic process. Here, we highlight ligand-to-metal charge transfer (LMCT) on photoluminescence (PL) free HER Ag13 NCs. MALDI-MS analysis confirms composition NCs as [Ag13(L)9] [L = D-penicillamine (DPA), cysteine (CYS), mercaptopropionyl glycine (MPG)]. XPS study DFT calculations reveal that electron-donating modulate electron density Ag(I) core cause a change in HOMO-LUMO gap PL due to LMCT. Partial states (PDOS) calculation shows H 1s-Ag bonding occurs below Fermi level, causing substantial contribution valence band region [Ag13(CYS)9] optimal efficient kinetics are reasons for superior

Language: Английский

Citations

0
Designing Superatomic (Li/Na/K)-Al-Sc Cluster Catalysts for Selective Electrochemical HER and NRR DOI

Ritika Saroha,

Shweta Choudhary, R. Brahma

et al.

The Journal of Physical Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Language: Английский

Citations

0
Aggregation-Induced Photosensitization of Long-Chain-Substituted Osmium Complexes for Lysosomes Targeting Photodynamic Therapy DOI
Ziyu Zhou, Shuo Li,

Xiuqian Ding

et al.

ACS Applied Bio Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Photodynamic therapy (PDT) has been demonstrated to be an effective tool for cancer treatment. Seeking organelle-targeting photosensitizers (PSs) with robust reactive oxygen species (ROS) production is extremely in demand. Herein, we propose aggregation-induced photosensitization strategy PDT osmium complexes. We designed and synthesized three complexes (Os-Me, Os-tBu, Os-Nonly) ligands of different alkyl chains. In phosphate-buffered saline solution, the complex Os-Nonly formed a spherical aggregate diameters around 220 nm. The results from ROS assays indicate that showed highest efficiency generating superoxide anions singlet oxygen, demonstrating its role as type I/II photosensitizer. Additionally, specifically targeted lysosomes 4T1 MCF-7 cells, producing sustained efficient manner high phototoxicity (IC50 = 6.999 μM cells), thereby inducing cell death. 4T1-tumor-bearing mice models, effectively inhibited tumor growth minimal impact on normal organs.

Language: Английский

Citations

0
β-Cyclodextrin stabilized gold nanoclusters (β-CD@AuNCs) as a signal-off fluorescent platform for Fe3+ ions detection DOI
Mohamed Ibrahim Halawa, Murad M. A. Abualrejal, Abobakr A. Mohamed

et al.

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 113488 - 113488

Published: March 1, 2025

Language: Английский

Citations

0
Engineering Amphiphilic Gold Thiolate Clusters for Enhanced Luminescence and Controlled Assembly DOI Creative Commons

Didarul Islam,

Md. Hafizul Islam

Chemical Physics Impact, Journal Year: 2025, Volume and Issue: unknown, P. 100877 - 100877

Published: April 1, 2025

Language: Английский

Citations

0