How to Ship Samples

Shipping Address

Please ship all approved project-related materials to:

Please email tracking information to: info@dunexbio.com

Package labeling requirements

• “Attn: DuneX Biosciences — Sample Submission”;
• Your organization name;
• Your project reference number, if available;
• Material name or sample ID;
• Storage condition, such as 2–8 °C, room temperature, or dry ice;
• UN 1845 label and dry ice weight for dry ice shipments, if applicable.

Please do not ship materials before the project scope and sample requirements have been confirmed by DuneX.

Shipping Antigens and Target Proteins

For yeast display antibody discovery, antigen quality is one of the most important factors affecting selection performance. Please provide purified, research-use-only antigen whenever possible.

Useful information to provide

• Target name and species;
• Protein sequence or accession number;
• Construct format, such as extracellular domain, domain fragment, peptide, or full-length protein;
• Tag information, such as His, Fc, AviTag, FLAG, GST, or biotin;
• Purity estimate and buffer composition;
• Concentration and total amount available;
• Known stability, freeze-thaw sensitivity, or aggregation concerns;
• Storage condition and expiration date, if available.

Typical amount

The required amount depends on target size, labeling format, selection strategy, and number of rounds. We will confirm the exact amount during project scoping.

For small antigens, difficult proteins, or targets with known stability issues, please discuss antigen format with us before shipping.

Shipping Biotinylated, Labeled, or Tagged Antigens

If your antigen is already biotinylated, fluorescently labeled, or tag-purified, please include the relevant quality information. This helps us choose the best staining and selection workflow.

Please include

• Label or tag type;
• Degree of biotinylation or labeling, if known;
• Labeling chemistry or vendor information;
• Buffer composition and stabilizers;
• Recommended storage and handling conditions;
• Any prior binding or activity data, if available.

Shipping conditions

• Most proteins should be shipped frozen on dry ice or refrigerated with cold packs, depending on stability;
• Avoid repeated freeze-thaw cycles whenever possible;
• Use leak-proof primary tubes and a rigid secondary container;
• Clearly label each tube with sample ID, concentration, and storage condition.

If you are unsure whether to ship on dry ice or cold packs, use the storage recommendation from the protein supplier or contact us before shipment.

Shipping Reference Binders or Competitors

For competitive selection, epitope-aware selection, or affinity maturation projects, you may provide a reference antibody, ligand, receptor, or competitor molecule.

Common materials include

• Reference antibody or benchmark binder;
• Natural ligand or receptor fragment;
• Competitor protein or blocking reagent;
• Negative-control protein or irrelevant antigen;
• Known non-binding or background-control material.

Please include

• Concentration and total amount;
• Buffer composition;
• Species, isotype, or format, if applicable;
• Known binding information, such as approximate affinity or epitope relationship;
• Storage and handling requirements.

Reference binders are optional but can be useful when your project requires competitive selection, epitope steering, or developability-aware prioritization.

Shipping DNA or Plasmid Material

Some projects may require customer-provided DNA, plasmid constructs, antigen expression plasmids, binder sequences, or reference sequence material.

Recommended format

• Clearly labeled tube with plasmid or sample ID;
• Concentration and total amount listed on the tube or packing list;
• Nuclease-free water or low-salt TE buffer preferred;
• Plasmid map, GenBank file, or full sequence file provided electronically;
• Antibiotic resistance and bacterial strain information, if relevant.

Shipping conditions

• Purified DNA can usually be shipped at room temperature or with cold packs;
• Use a rigid secondary container to prevent tube cracking;
• Avoid shipping very low-volume samples in poorly sealed tubes;
• Clearly label sample IDs so they match the submitted documentation.

We will confirm whether DNA or plasmid material is required for your specific project before shipment.

Shipping Buffers, Reagents, or Special Materials

If your antigen, binder, or assay requires special buffers, additives, cofactors, or handling conditions, please provide those details before shipment.

Examples include

• Special storage or assay buffer;
• Cofactors, ligands, metals, or stabilizing additives;
• Detergents or formulation components;
• Blocking reagents or negative-control proteins;
• Vendor-specific components needed to maintain antigen activity.

Temperature guidance

• Most buffers can ship at room temperature unless otherwise specified;
• Proteins, cytokines, enzymes, or labile reagents may require cold packs or dry ice;
• Light-sensitive materials should be protected from light;
• Hazardous materials must be disclosed before shipment.

Please do not send hazardous, infectious, clinical, diagnostic, or human-derived materials unless DuneX has explicitly approved them in writing.

General Packaging Guidelines

Use packaging that protects sample integrity and complies with applicable shipping regulations.

Frozen materials

• Ship with adequate dry ice for at least 24–48 hours of transit;
• Use an insulated shipping container;
• Include the correct UN 1845 dry ice label and dry ice weight;
• Seal primary tubes securely and place them inside a secondary container.

Refrigerated materials

• Use sufficient cold packs for overnight delivery;
• Protect samples from direct contact with frozen packs if freezing is undesirable;
• Use leak-proof primary and secondary containment.

Room-temperature materials

• Use rigid secondary containers for tubes;
• Protect against breakage, crushing, and leakage;
• Clearly label all tubes and match labels to the packing list.

Include Documentation

Please include a printed packing list inside the shipment and provide electronic documentation by email when possible.

Documentation should include

• Project reference number, if available;
• Sender name, organization, and contact information;
• Sample names and sample IDs;
• Concentration, volume, and total amount for each sample;
• Buffer composition and storage conditions;
• Safety or biosafety information;
• Material Safety Data Sheet, if applicable;
• Special handling notes.

Sample IDs on tubes should match the packing list exactly to avoid project delays.

Before You Ship

To avoid delays, please confirm the shipment details with DuneX before sending materials.

Pre-shipment checklist

• Email us at least 24 hours before shipping;
• Confirm the expected arrival date;
• Send the tracking number after shipment;
• Avoid Friday, weekend, or holiday arrivals unless specifically approved;
• Confirm that all samples are research-use-only materials;
• Confirm that all tubes are clearly labeled;
• Include a packing list and any required safety documentation.

We recommend FedEx Priority Overnight or another reliable overnight courier for temperature-sensitive materials.

Questions Before Shipping?

If you are unsure about sample amount, antigen format, shipping temperature, packaging, or documentation, please contact us before sending materials.

Email: info@dunexbio.com

We typically respond within 1 business day.