Visual detection of melamine in raw milk by label-free silver nanoparticles

Peng, Hong; Zhang, Minwei; Li, Hongkun; Li, Shugui; Chen, Quansi; Sun, Chia‐Chung; Zhang, Tiehua

doi:10.1016/j.foodcont.2011.07.009

Cited by 137 publications

(74 citation statements)

References 42 publications

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“…5D) obviously aggregated, indicating that RB could not affect the melamine-induced aggregation of AuNPs. These aggregation phenomena are consistent with those of previous reports on colorimetric detection of melamine using AuNPs or AgNPs as reporter [17,19]. These studies have shown that melamine can strongly bind onto the surface of AuNPs through its three amine groups to substitute for citrate ions or some other modifiers by ligand change, which will enervate the electrostatic repulsion among individual AuNPs, facilitate the aggregation of AuNPs and finally result in the color change of solution [18].…”

Section: Fret-based "Turn-on" Detection Of Melaminesupporting

confidence: 92%

Highly sensitive detection of melamine based on fluorescence resonance energy transfer between rhodamine B and gold nanoparticles

et al. 2014

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Section: Fret-based "Turn-on" Detection Of Melaminesupporting

confidence: 92%

Highly sensitive detection of melamine based on fluorescence resonance energy transfer between rhodamine B and gold nanoparticles

et al. 2014

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“…In their study, silver colloidal substrates were used to detect Bacillus spores at 5 ppb, which is a highly desirable safety level in the food manufacturing industry. Melamine, a contaminant found in milk and toddler formula, was also detected by several groups using AgNP and SERS (for examples see [53][54][55]). …”

Section: Sers For Detection Of Toxic Substancesmentioning

confidence: 95%

Surface Enhanced Raman Scattering (SERS) Using Nanoparticles

Khetani

Momenpour

Tiwari

et al. 2015

Silver Nanoparticle Applications

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Surface enhanced Raman spectroscopy (SERS) is one of the most promising label-free techniques for molecular sensing. In this chapter, we review the fundamental concepts of Raman spectroscopy and the need for SERS. We then discuss the fundamentals of SERS and focus on silver nanoparticles. This is followed by reviewing recent progress and applications of SERS. Finally, we discuss methods for further enhancing SERS signal using hollow core fibers.

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“…Nanostructured metals are attracting intensive interests from the scientific community, owing to their fabulous properties and diversity of applications [57,58]. A number of studies have explored the cooperation and synergistic effects between nanostructured metals and graphene paper, such as Pt nanoparticles (PtNPs) [59], Pt nanowires (PtNWs) [60], Au@Pt core-shell NPs [61], Au nanoparticles (AuNPs) [62] and Ag nanoparticles (NPs) [63].…”

Section: Metallic Nanostructuresmentioning

confidence: 99%

Graphene-Paper Based Electrochemical Sensors

Zhang¹,

Halder²,

Cao³

et al. 2017

Electrochemical Sensors Technology

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Graphene paper as a new form of graphene-supported nanomaterials has received worldwide attention since its first report in 2007. Due to their high flexibility, lightweight and good electrical conductivity, graphene papers have demonstrated the promising potential for crucial applications in electrochemical sensors and energy technologies among others. In this chapter, we present some examples to overview recent advances in the research and development of two-dimensional (2D) graphene papers as new materials for electrochemical sensors. The chapter covers the design, fabrication, functionalization and application evaluations of graphene papers. We first summarize the mainstream methods for fabrication of graphene papers/membranes, with the focus on chemical vapour deposition techniques and solution-processing assembly approaches. A large portion of this chapter is then devoted to the highlights of specific functionalization of graphene papers with polymer and nanoscale functional building blocks for electrochemical-sensing purposes. In terms of electrochemical-sensing applications, the emphasis is on enzyme-graphene and nanoparticle-graphene paper-based systems for the detection of glucose. We finally conclude this chapter with brief remarks and outlook.

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Visual detection of melamine in raw milk by label-free silver nanoparticles

Cited by 137 publications

References 42 publications

Highly sensitive detection of melamine based on fluorescence resonance energy transfer between rhodamine B and gold nanoparticles

Highly sensitive detection of melamine based on fluorescence resonance energy transfer between rhodamine B and gold nanoparticles

Surface Enhanced Raman Scattering (SERS) Using Nanoparticles

Graphene-Paper Based Electrochemical Sensors

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