Nanoparticle Detection
Nanoparticle Detection - Related Videos
08:13
Microwave-driven Synthesis of Iron Oxide Nanoparticles for Fast Detection of Atherosclerosis
0 Views •
Cited by 2 •
2016
Microwave technology enables extremely fast synthesis of iron oxide nanoparticles for atherosclerosis plaque characterization. The use of an aminobisphosphonate in the external side of the nanoparticle provides a fast accumulation in the atherosclerotic area.
07:31
Detection of Fluorescent Nanoparticle Interactions with Primary Immune Cell Subpopulations by Flow Cytometry
0 Views •
Cited by 13 •
2014
Analysis of nanoparticle interaction with defined subpopulations of immune cells by flow cytometry.
14:53
In Situ Detection and Single Cell Quantification of Metal Oxide Nanoparticles Using Nuclear Microprobe Analysis
0 Views •
Cited by 3 •
2018
We describe a procedure for the detection of chemical elements present in situ in human cells as well as their in vitro quantification. The method is well-suited to any cell type and is particularly useful for quantitative chemical analyses in single cells following in vitro metal oxide nanoparticles exposure.
08:14
Detection of Intracellular Gene Expression in Live Cells of Murine, Human and Porcine Origin Using Fluorescence-labeled Nanoparticles
0 Views •
Cited by 1 •
2015
This manuscript describes a novel technique which allows the detection of intracellular gene expression after endocytosis of fluorescence-labeled nanoparticles directly in live cells. The method does not require manipulation of the cells and is not restricted with respect to the target gene or species.
09:23
Harmonic Nanoparticles for Regenerative Research
0 Views •
Cited by 1 •
2014
Protocol details are provided for in vitro labeling human embryonic stem cells with second harmonic generating nanoparticles. Methodologies for hESC investigation by multi-photon microscopy and their differentiation into cardiac clusters are also presented.
FAQs
Each method relies on a distinct measurable signal. Electron microscopy uses electron density to show particle morphology, while dynamic light scattering evaluates size-related behavior in a sample. Nanoparticle tracking analysis follows individual particles, and spectroscopy can use fluorescence or surface plasmon resonance. Selecting among them depends on whether the goal is to assess size, concentration, shape, or composition.
Light scattering reports properties associated with how particles interact with incident light, supporting measurements related to size and concentration. Fluorescence instead depends on detectable emitted light from labeled or intrinsically fluorescent components. These signals can therefore address different questions, such as the physical presence of particles versus their association with particular biological materials or cellular environments.
Size, concentration, morphology, and composition each influence how nanoparticles are evaluated in biological systems. Detection methods can also examine particle stability, cellular uptake, and interactions with biomolecules. Measuring these features together gives a more informative picture than relying on a single signal, because biological behavior may reflect both the particle's physical properties and its surrounding molecular context.
The intended measurement should guide method selection. Electron microscopy is appropriate when morphology and electron density are central, whereas dynamic light scattering or nanoparticle tracking analysis can address particle size and concentration. Spectroscopy is useful when fluorescence or surface plasmon resonance provides the relevant signal. Combining complementary methods can support broader characterization of stability and biological interactions.
Detection supports the characterization of nanoparticles before and during biological investigation. Researchers can assess size, concentration, morphology, composition, stability, cellular uptake, and interactions with biomolecules. These measurements help connect the physical behavior of a nanomaterial with its performance in biological settings, providing evidence for interpreting experimental results and comparing nanoparticle-based technologies.
In drug-delivery studies, measurements of particle characteristics and cellular uptake help evaluate how nanomaterials behave in biological systems. For diagnostic assays, detection can characterize particles and their interactions with biomolecules, supporting assessment of assay-related nanomaterials. The same analytical information also contributes to environmental exposure studies and nanomaterial toxicity research.