Sample Shipment

Please ship your samples cold on dry ice or contained ice pack - make sure to provide absorbent materials in case of tube leakage.

  1. Include in this shipment a copy of your Sample Submission Form
  2. If you want to receive frozen grids back, you must ship a Dry Shipper to PNCC with a shipment return label* to return the dewar.

Grid Shipment

Please ship your clipped** and approved*** grids in autoloader grid boxes using a Dry Shipper (Extended Time Cryogenic Refrigerator) - Preparing a Dry Shipper

  1. Include in the dry shipper a shipment return label* to return the dewar.
  2. For International shipments, please include a copy of declarations paperwork needed to ship your dewar back. Make sure to complete this paperwork before shipment pickup to ensure the smoothest delivery with customs.
  3. A Grid Submission Form 
  4. A Pre-Screened Grid Form 

BSL-2 Shipments

Follow the above steps for if you are shipping samples or grids. PNCC must follow our Biosafety Offices' recommendations for BSL-2 samples/grids and have these additional guidance to protect our staff's safety:

  1. PNCC cannot return BSL-2 samples, they must be destroyed after imaging.
  2. PNCC can only receive frozen samples.
  3. For grids, clearly mark the shipment so that we can place into our separate BSL-2 dewar.
  4. Follow your institutional shipping rules for all BSL-2 shipments
    • PNCC is not liable for failure to follow federal shipping rules if shipped incorrectly.

Shipping Address

Att: Claudia López, PNCC Proposal #-----
Oregon Health & Science University
LVMS Mail Code: CL-P2M
2730 S. Moody Ave
Portland OR 97201


Where do I send shipments?

Please send shipments to:

    Att: Claudia López, PNCC Proposal #-----
    Oregon Health & Science University
    LVMS Mail Code: CL-P2M
    2730 S. Moody Ave
    Portland OR 97201

How many samples can I send?

Per our scheduling policies, we request that only 3 samples be shipped for sample preparation with a Screening Access proposal.

How many grids can I send?

Per our scheduling policies, we request that only 11 grids are shipped per 6-hour screening session. Up to 2 grids can be loaded for a scheduled data collection reservation. 

**Will you clip my grids?

Please review our scheduling policies "Screening Preparation Services (Stage I/II)."

What is considered a pre-screened grid?

Grids are considered pre-screened when the freezing parameters have been assessed under cryo conditions and confirmed as high-quality samples. Each batch of grids that has been frozen should be assessed for optimal ice quality, sample concentration, and particle distribution. Pre-screening ensures high-quality grids for data collection. Grids that are not pre-screened generally will not have successful data collection results. When shipping grids to PNCC, please either make sure you pre-screen grids at your local microscopy facility or request a screening session with us. Preliminary data is required for data collection scheduling requests.

Can we send grids in a storage puck?

Yes. We will transfer your grid boxes to a PNCC storage unit and returns your puck(s) with your dry shipper.

Can I bring my samples on-site to be vitrified at PNCC?

Yes, only if the samples have been included in the proposal's sample table and are biohazard safety level-1. We currently cannot accept liquid biohazard safety level-2 samples. Users will have access to a Vitrobot and Leica GP2 for sample preparation. 

What biosafety levels are accepted?

Please see our Usage Disclaimers webpage, "PNCC Biohazard Information" for more information regarding sample biosafety.

***Can I send other samples than what is listed in my proposal?

This depends. All requested samples must be in the same scientific scope to be approved. During the General Access Extension, approved users can request additional samples be added to their proposal. If BSL-2 samples are added, we will require a copy of your Institutional IBC for approval. Please contact support in all other cases.

         *Samples sent in shippers without a return label or declarations paperwork will not be marked as "on-site."