Carboxyl Gold Nanoparticles are engineered with surface carboxylic acid groups, facilitating covalent conjugation to amine-containing biomolecules through EDC/NHS chemistry. This stable linkage is essential for various biomedical applications.

Applications:

• Development of lateral flow assays for rapid diagnostics
• Surface-enhanced Raman spectroscopy (SERS) for molecular detection
• Targeted drug delivery systems in therapeutic research

These nanoparticles are characterized by a narrow size distribution and high colloidal stability, ensuring consistent performance in complex biological environments.

Absorbance Max Options: 670 nm, 680 nm, 720 nm, 760 nm
PEG Spacer Options: 2 kDa, 5 kDa, 10 kDa
Volume Options (@ 50 OD): 1 mL, 3 mL

Gold nanorods functionalized with carboxyl-terminated polyethylene glycol (PEG)

Length: 29 nm – 53 nm
Cross section: 7 nm – 24 nm
Aspect ratio: 2.2 – 3.9
Absorbance peak: 670 nm – 760 nm
Shelf life: > 1 year (4°C storage)
Supplied as liquid suspension in PBS or in water with 0.01% (w/v) Tween-20