Fluorescent Nanobeads for Time-Resolved Fluorescence Lateral Flow Assays
Fluorescent nanobeads are suitable for instrument-read assays requiring low background, higher sensitivity and quantitative or semi-quantitative output. JY Biotech FNBE products support 365 nm excitation, 610 nm emission and multiple surface groups.
Value of time-resolved fluorescence
Time-resolved fluorescence reads the signal after a delay following excitation. Short-lived background fluorescence decays earlier, while Eu3+ chelate emission remains longer, helping reduce background interference.
FNBE parameters
Available directions include FNBE-200, FNBE-300 and FNBE-500, with 100-800 nm custom particle sizes and COOH, NH2, SA or customized surface groups.
Typical features include 365 nm excitation, 610 nm emission, 100-1000 microsecond lifetime window, PDI < 0.1 and 0.5 / 1 / 5 mL packages.
FAQ
Can fluorescent nanobeads replace colloidal gold?
They can be evaluated as an upgrade path when higher sensitivity or instrument readout is required, but validation must include reader, strip structure and coupling chemistry.
Can custom development be discussed?
Yes. Particle size, surface group, dispersion medium, package and application requirements can be discussed.
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