Green synthesis of highly fluorescent AuNCs with red emission and their special sensing behavior for Al³⁺

Abstract

Facile methods were fabricated for preparation of highly fluorescent AuNCs with red emission using l-cysteine.

Engineering the Self-Assembly Induced Emission of Copper Nanoclusters as 3D Nanomaterials with Mesoporous Sphere Structures by the Crosslinking of Ce3+

“…Since different metal ions had different aggregating effects, it was worth wondering whether they were capable of transforming the irregular aggregates into regular nanomaterials here. 26,27 A-CuNCs-1 were stable in acid media at room temperature, but they would be completely decomposed after the introduction of strong alkaline such as NaOH. This was similar to the acid-stable and base-soluble behaviors of GSH and dipicolinic acid protected CuNCs.…”

“…However, the morphology was pretty irregular because the discrete CuNCs randomly interacted with each other through a quite fast route, which would bring concern about the stability of the product. Since different metal ions had different aggregating effects, it was worth wondering whether they were capable of transforming the irregular aggregates into regular nanomaterials here. , A-CuNCs-1 were stable in acid media at room temperature, but they would be completely decomposed after the introduction of strong alkaline such as NaOH. This was similar to the acid-stable and base-soluble behaviors of GSH and dipicolinic acid protected CuNCs. , Although NaOH could be used to dissolve A-CuNCs-1, the increase of NaOH in the colloid also significantly enhanced the pH value after the titration jump point, where the NCs would be completely broken down .…”

Fabrication of an acylhydrazone based fluorescence probe for Al3+

“…Most of the sensors are rhodamine derivatives [40][41][42][43][44][45], naphthol derivatives [46][47][48], quinoline derivative [49]. Some are based on julolidine and tryptophan moieties [50], conjugated copolymer-ATP supramolecular complex [51], Organic Framework [52]，gold nanoparticles [53,54].…”

Surface Engineering of Au36(SR)24 Nanoclusters for Photoluminescence Enhancement

“…Gold nanoparticles with atomic precision are particularly preferred due to their extraordinary chemical stability and elegant optical properties . Controlling nanoparticle size and structure is of major importance for practical applications such as catalysis, sensing, and optics …”