Storage and Handling

Storage Suggestions

Many of the products provided by PolySciTech are biodegradable and require careful handling to ensure quality. There is no single storage suggestion, due to the wide scope and breadth of our products. General storage protocols and suggestions for our various products are listed below:


Product type

Storage Suggestion

Dispersed Nanoparticle products (ANxxx)

4-10 °C, protect from light. Do not freeze

Block Copolymers (AKxxx)

-20 °C, protect from moisture

PolyEsters (APxxx CBxxx)

-20 °C, protect from moisture

Monomers (AMxxx)

-20 °C, protect from moisture

Cationizable Polymers (ACxxx)

-20 °C, protect from moisture

Lipid Derivatives (ADxxx)

-20 °C, protect from moisture

Maleimides (certain AIxxx, AExxx)

-20 °C, protect from moisture and thiols

N-hydroxysuccinimide esters (certain AIxxx, AExxx)

-20 °C, protect from moisture and amines

Fluorescent Conjugates (AVxx)

-20 °C, protect from moisture and light

Poly(acrylates/acrylamides) (AOxxx)

5 to 20 °C, protect from light and moisture

Polyoxazoline Derivatives (AXxxx)

-20 °C, protect from moisture

Poly(urethanes) (AOxxx)

5 to 20 °C, protect from light and moisture


5 to 20 °C, protect from light and moisture

Flamma-Fluor Fluorescent dyes

Storage temperature specified on label. Protect from light

Aquagel Products

Room temperature storage is fine, protect from physical crushing

AKiNAfil Products

-20 °C, protect from moisture

NuPlon Resin

Room temperature storage is fine

RiPurpose Products

Room temperature storage is fine, protect from physical crushing


It should be noted that these are the optimal conditions for long-term storage.


Most products will be flushed with Argon when packaged for shipping. It will say this on the label. This will protect the product under any conditions as long as the container remains closed and sealed.


Allow frozen/refrigerated products to equilibrate to room temperature, preferably in a desiccator cabinet, prior to opening.


**Note that short excursions to higher temperatures during shipping or handling will not significantly affect product quality.  If product is received thawed, refrigerate, or freeze as instructed above.

Shelf Life

As these products are novel, in most cases exact shelf-life determination is not readily available. When stored as directed, however, the products have an estimated shelf-life as follows:


  • Block copolymers (AK***'s) and Polyesters (AP***'s): 10 years
  • Reactive Intermediates (AI***'s), reactive PEG's (AE***'s), Fluorescent label polymers (AV***'s), Monomers (AM***): 5 years
  • Others (AO***'s), Kitopure: Generally 10 years, but varies widely based on type.


Note these are general guidelines and exact shelf-life depends on product storage conditions and type.

Technical Questions?


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