DCN’s unique formula and highly controlled manufacturing process for Colloidal Gold allows us to create gold colloids of the highest quality, designed specifically for use in lateral flow, flow through and microfluidic applications. Our gold undergoes strict quality control to ensure monodispersity, uniformity and stability.

The use of the highest quality gold colloids is essential to the quality of your assay. Colloids should be uniform in size and shape and be monodisperse in nature. We manufacture our colloids using the highest quality water and gold chloride, under highly controlled conditions to ensure these characteristics.

Our standard colloids are 20nm and 40nm in diameter, and are manufactured at OD 1.0, but other concentrations can be produced on request.

DCN’s colloids are stable in excess of 12 months when stored unopened at 4-25°C.
For standard pricing information, see our catalog. For bulk pricing, please contact us.

Gold Conjugates

DCN provides a range of off-the-shelf gold conjugates for a range of assays and uses, including

• Protein A gold
• Protein G gold
• Streptavidin gold
• Anti – hCG gold
• Small molecule conjugates are also available, including for MDMA, methamphetamine, amphetamine cocaine

See our catalog for details.

Custom Conjugation

DCN provides custom conjugation services for Colloidal Gold, colored, visual, fluorescent and paramagnetic particles. For details, see our Custom Conjugation page.

LATERAL FLOW TEST COMPONENTS

CUSTOM PARTICLE AND SMALL MOLECULE CONJUGATIONS

ANTIBODIES

ANTIGENS

PARTICLE CONJUGATES

GENERAL REAGENTS

ASSAY STANDARDS/HUMIDITY CONTROL PRODUCTS

ORDERING INFORMATION

When ordering, please specify customer name, shipping address, billing address, DCN part number, quantity, size, price and your purchase order number.

Terms of Delivery and Payment

Orders: When ordering, please be certain to indicate both part number and description of product. DCN has a minimum order requirement of US$150.

Shipment: We recommend customers give specific instructions regarding method of shipment. In the absence of instructions, we will ship the most practical way under conditions existing at time of shipment. Pricing does not include shipping, duties, taxes or other such expenses. Pricing is FOB, Carlsbad, CA, USA.

Terms and Prices: For new customers, we ask for payment prior to shipment of order. Pricing is in US$. We also accept Visa/MasterCard for payment. Please request wire transfer instructions if you wish to T/T payment. Prices are subject to change without notice.

Claims for Damage In Transit: Claims by customer for damage in transit should be made to the transportation company. DCN should be informed within 5 days of receipt of damaged goods. Non-receipt claims on lost shipments should be made within 15 days of original order.

Claims for shortages: If any shipment discrepancies are discovered, claims must be made within 5 days to be considered.

Returning Material: Requests to return products must be made within 10 days of receipt. You must obtain an RMA number before returning material. Returned products should be clearly marked with sender’s name and address, carefully packed, and shipped prepaid. Products must be returned in the same condition as received and within 15 days of original shipment by DCN.

Humidity Control Products

HUMIDITY INDICATING CARDS
DCN can supply Humidity Indicating Cards in a number of percentage levels: 10-60%, 10-30%, 20-40%, 30-50%, 10-40% and 5-10-15%.
Please email or call for pricing.

TEMPERATURE LABELS AND RECORDERS
DCN can supply a variety of Temperature Indicating Labels for Warm/Freeze Indication, Urine Test Cups and Strip Chart Recorders.
Please email or call for pricing.

We will supply 3-4 ml at OD10 and need approximately 1 mg of protein to perform the conjugation.
 Contact Us for Pricing.

LATEX AND OTHER PARTICLE CONJUGATION

We will supply 1-2 ml of covalently linked conjugate to the latex particle of your choice, which includes plain latex, para- and superpara- magnetic particles, colored latex, or fluorescent labeled latex. The final concentration is typically 1% solids.
Contact Us for Pricing..

SMALL MOLECULE / HAPTEN CONJUGATIONS

DCN will provide custom conjugations for any small molecule, hapten or protein you require. The conjugation service includes optimization and QC of the conjugate. Inquire for details regarding your specific conjugation.