PEG-COOH-modified upconverting nanoparticles(near-infrared light), 10 mgProduct Type: Upconverting nanoparticle
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, material format, solvent, concentration or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
How does the 35 nm particle size of these NaYREF4 upconversion nanoparticles affect their upconversion luminescence efficiency compared to larger particles?
The product description specifies a 35 nm particle size but does not provide quantum yield or efficiency data. The 35 nm size is a common choice for balancing colloidal stability in water (as indicated by the water solvent) and upconversion emission at 804 nm. Smaller particles may have higher surface-to-volume ratios that can introduce non-radiative losses, but the manufacturer does not quantify this trade-off in the listing.
What excitation wavelength is needed to achieve the 804 nm upconversion emission from these PEG-COOH-modified nanoparticles?
The product description states 'near-infrared light' for the emission but does not specify the required excitation wavelength. Typically, NaYREF4 upconversion nanoparticles are excited at 975-980 nm to produce anti-Stokes shifted emission. Users should confirm the excitation source matches the product's spectral properties, as the manufacturer does not provide the excitation wavelength in the listing.
What are the recommended storage conditions for these upconverting nanoparticles to prevent aggregation or degradation?
The product description does not provide explicit storage guidelines. The nanoparticles are supplied in water as the solvent, and the PEG-COOH modification is designed to enhance aqueous stability. Generally, such nanoparticles should be stored at 4°C, protected from light, and used promptly. For specific recommendations, the manufacturer's technical sales team can be contacted at inquiry@atomfair.com.
This PEG-COOH-modified upconverting nanoparticle (NaYREF4, 35 nm, 804 nm emission) is supplied as a 10 mg water-dispersible powder for NIR-to-NIR luminescence applications, requiring careful solvent and concentration confirmation prior to use.
Positive
- NIR excitation and emission: Excitation and emission in the near-infrared region (804 nm) reduces autofluorescence background in biological imaging and enables deeper tissue penetration compared to visible-light emitters.
- Water-dispersible PEG-COOH surface: PEG-COOH modification provides colloidal stability in aqueous media and offers a carboxyl functional group for bioconjugation, facilitating integration into bioassay or labeling workflows.
Trade-offs
- Small package size constraint: Supplied as a 10 mg quantity, which limits the number of experiments or replicates possible without reordering; suitable only for small-scale proof-of-concept or optimization studies.
- Solvent and format verification required: The product is listed as a powder with water as solvent, but concentration and dispersion state must be confirmed before use to avoid aggregation or incompatibility with downstream protocols.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
