Synthesis of highly fluorescent Cu/Au bimetallic nanoclusters and their application in a temperature sensor and fluorescent probe for chromium(<scp>iii</scp>) ions

Zhao

et al. 2021

Ind. Eng. Chem. Res.

In this paper, we present a supramolecular method to fabricate soft fluorescent materials by simply grinding aggregation-induced emission (AIE) luminogens of TPA-Py with phenylboronic acid (PhBA), which proves the general research concept used to design fluorescent materials with tunable emission colors. The mechanistic study confirms that H-bonding plays a key role in gel formation and the smart responsive behavior to external stimuli (such as amine vapors and temperature changes). Thus, this result endows the fluorescent materials with the ability to detect amine vapors during fish spoilage. In addition, copolymerization and coprecipitation are consecutively performed to prepare highly cost-effective, conveniently storable, and safe to handle fluorescence spheres (named Fluo-Spheres), which can be employed as ultrasensors to monitor food safety in a noncontact mode.

Section: Resultssupporting

confidence: 71%

Fabricating Soft Fluorescent Materials by a Supramolecular Method and a Cost-Effective Approach to Effectively Sense Amine Vapors during Fish Spoilage

Zhao

et al. 2021

Ind. Eng. Chem. Res.

“…A one-step synthesis method for prepared high fluorescence bimetallic Cu-Au nanoclusters (Cu/Au BNCs) was proposed by Ai group. The fluorescence signals of Cu/Au BNCs exhibited reversible response and good sensitivity in the temperature range of 20-70 • C (Nie et al, 2018). The Pdbased alloy nanomaterials have been successfully applied to temperature sensing in this paper.…”

mentioning

confidence: 88%

Trimetallic PdCuAu Nanoparticles for Temperature Sensing and Fluorescence Detection of H2O2 and Glucose

Nie

et al. 2020

Front. Chem.

Self Cite

The design of palladium-based nanostructures has good prospects in various applications. This paper reports a simple one-step synthesis method of PdCuAu nanoparticles (PdCuAu NPs) prepared directly in aqueous solution. PdCuAu NPs have attracted much attention owing to their unique synergistic electronic effect, optical and catalytic performance. As temperature sensor, PdCuAu NPs are sensitive to the fluorescence intensity change in the temperature range of 4-95 • C, which is due to its unique optical properties. The prepared PdCuAu NPs have excellent catalytic performance for peroxidase-like enzymes. It can catalyze TMB rapidly in the presence of hydrogen peroxide and oxidize it to visible blue product (oxTMB). Based on its unique peroxidase-like properties, this study used PdCuAu NPs colorimetric platform detection of hydrogen peroxide and glucose. The linear ranges of hydrogen peroxide and glucose were 0.1-300 µM and 0.5-500 µM, respectively, and the detection limits (LOD) were 5 and 25 nM, respectively. This simple and rapid method provides a good prospect for the detection of H 2 O 2 and glucose in practical applications.

“…Nie et al synthesized luminescent GSH-Cu/Au BMNCs at room temperature by reacting Cu(NO 3 ) 2 solution with GSH solution. 245 The reaction proceeded via the formation of a white hydrogel. The dropwise addition of NaOH solution resulted in the formation of a transparent light-yellow solution at approximately pH 5.…”

Section: Materials Advances Reviewmentioning

confidence: 99%

Origin of luminescence properties and synthetic methods for gold- and bimetallic gold-based nanomaterials

2022