2019
DOI: 10.1021/acs.jchemed.9b00342
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Synthesis of Fluorescent Silver Nanoclusters: Introducing Bottom-Up and Top-Down Approaches to Nanochemistry in a Single Laboratory Class

Abstract: A laboratory class was developed and evaluated to illustrate the synthesis of metal nanoclusters (NCs) and to explain their photoluminescence properties for the case of silver. The described experiment employs a synthetic protocol that consists of two sequential phases in a single reaction pot: the reduction of silver ions into plasmonic silver nanoparticles (NPs) (bottom-up), followed by etching the formed silver NPs into ultrasmall atomically precise fluorescent silver NCs (top-down), Ag 29 (DHLA) 12 (DHLA: … Show more

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Cited by 28 publications
(22 citation statements)
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“…Ultrasmall nanoparticles of silver have been studied to a much lesser extent than with gold, although a number of robust syntheses have been reported. ,, Ultrasmall gold–silver alloys have also been prepared. Silver nanoparticles are well-known for their interesting properties in heterogeneous catalysis, , photonics, biomedicine, , and energy storage and conversion . Silver is of particular interest due to its antibacterial action .…”
Section: Introductionmentioning
confidence: 99%
“…Ultrasmall nanoparticles of silver have been studied to a much lesser extent than with gold, although a number of robust syntheses have been reported. ,, Ultrasmall gold–silver alloys have also been prepared. Silver nanoparticles are well-known for their interesting properties in heterogeneous catalysis, , photonics, biomedicine, , and energy storage and conversion . Silver is of particular interest due to its antibacterial action .…”
Section: Introductionmentioning
confidence: 99%
“…Later, in 2012, Muhammed and coworkers have explained the growth process of such fluorescent AgNCs through a kinetic model. [ 69 ] In our recent report, [ 70 ] different stages of the formation mechanism of such DHLA‐protected Ag NCs are explained step by step (Figure 8A‐B). In this study, we illustrated that the synthesis pathway of the Ag 29 (DHLA) 12 NCs, which were first reported by Adhikari and Banerjee, [ 68 ] can be divided into four stages.…”
Section: Different Synthesis Routes Of Ncsmentioning
confidence: 94%
“…B, photographs show the evolution of the Ag 29 (DHLA) 12 NCs over time. Taken from ref., [ 70 ] Copyright 2019 American Chemical Society and Division of Chemical Education, Inc. C, Mass spectra of Ag NCs at various times after NaBH 4 addition. The ion signals of Ag 29 (LA) 12 3– are marked in blue; those of the other observed clusters in red and yellow.…”
Section: Different Synthesis Routes Of Ncsmentioning
confidence: 99%
“…AuNPs can be synthesized using “Top-Down” and “Bottom-Up” strategies, which are two distinct methods ( Man et al, 2018 ; Wahab et al, 2018 ; Zhu et al, 2020 ). Starting with bulk material and breaking it down into nanoparticles using various ways is the top-down strategy to synthesize AuNP.…”
Section: Synthesis Of Aunpsmentioning
confidence: 99%