2022
DOI: 10.1039/d2nr00120a
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Measuring the refractive index and sub-nanometre surface functionalisation of nanoparticles in suspension

Abstract: Direct measurements to determine the degree of surface coverage of nanoparticles by functional moieties are rare, with current strategies requiring a high level of expertise and expensive equipment. Here, a...

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Cited by 6 publications
(7 citation statements)
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“…The surface plasmon resonances of all four samples red-shifted with the extent of the shift related to MBA amount on the nanoparticle surface (Figure 1C−F, inset graphs), due to the change of refractive index near the nanoparticle surface. 25 The LSPR bandwidths remained essentially unchanged (Figure 1C−F), verifying that all samples maintained their colloidal stability. 26 Kinetics of Limited and Excess Amounts of MBA with AuNP and AuNS.…”
Section: ■ Results and Discussionmentioning
confidence: 60%
“…The surface plasmon resonances of all four samples red-shifted with the extent of the shift related to MBA amount on the nanoparticle surface (Figure 1C−F, inset graphs), due to the change of refractive index near the nanoparticle surface. 25 The LSPR bandwidths remained essentially unchanged (Figure 1C−F), verifying that all samples maintained their colloidal stability. 26 Kinetics of Limited and Excess Amounts of MBA with AuNP and AuNS.…”
Section: ■ Results and Discussionmentioning
confidence: 60%
“…Furthermore, AFM images revealed a varying morphology with a uniform glycoside shell for glucose, mannose and lactose derivatives whereas galactose and maltose coating resulted in inhomogeneous surface coverage. More recently, Mulkerns et al 136 developed a practical strategy, based on measuring the refractive index of nanoparticles, to determine the ratio of the volume of the functionalisation layer with regards to the particle volume, e.g. CDs in suspension based on refractive index mesurements.…”
Section: Glycocarbon Dots (Glycocds)mentioning
confidence: 99%
“…The refractive index is one of the basic optical characteristics of liquid material, and it is widely used in the fields of material, chemical industry, food, medical treatment, and so on 1 3 It follows that the measurement of the liquid refractive index is closely related to scientific research and industrial production and is an important research topic in modern science.…”
Section: Introductionmentioning
confidence: 99%
“…The refractive index is one of the basic optical characteristics of liquid material, and it is widely used in the fields of material, chemical industry, food, medical treatment, and so on. [1][2][3] It follows that the measurement of the liquid refractive index is closely related to scientific research and industrial production and is an important research topic in modern science. Thus simple and high-precision methods on the measurement of the refractive index are required for the liquid material analysis and for its applications such as the measurement of liquid concentrations.…”
Section: Introductionmentioning
confidence: 99%