IFA

Incomplete Freund's adjuvant | Th2 response

ABOUT

Vaccine Adjuvant: Incomplete Freund′s adjuvant

IFA (Incomplete Freund’s adjuvant) is one of the most commonly used adjuvants in research. It is prepared from non-metabolizable oils.

  • IFA can be used to produce water-in-oil emulsions of antigens.
  • IFA induces a predominantly Th2-biased response through the formation of a depot at the injection site and the stimulation of antibody-producing plasma cells.

 

IFA is VacciGrade™, a high-quality pre-clinical grade.

All InvivoGen products are for internal research use only, and not for human or veterinary use.

VacciGrade™

VacciGrade™ is a high-quality pre-clinical grade. VacciGrade™ products are filter-sterilized (0.2 µm) and filled under strict aseptic conditions in a clean room*. The absence of bacterial contamination is assessed by a sterility test using a pharmacopeia-derived assay. The level of bacterial contaminants (endotoxins and lipoproteins) in each lot is verified using a LAL assay and/or a TLR2 and TLR4 reporter assay.
*Except for LPS VacciGrade™, which is prepared in a laminar flow hood dedicated to LPS.

SPECIFICATIONS

Specifications

Specificity

Th2 response

CAS number
2097334-62-6
Working concentration

1:1 (IFA:antigen)

Formulation buffer

Ready-to-use liquid containing mannide monooleate and paraffin oil

Appearance (form)
Liquid
Appearance (color)
Clear to pale yellow
Sterility

Sterility guaranteed

Endotoxin

< 1 EU/ml (measurement by kinetic chromogenic LAL assay)

Tested applications

Adjuvanticity in vivo

Quality control

Each lot is functionally tested and validated.

CONTENTS

Contents

  • Product: 
    IFA
  • Cat code: 
    vac-ifa-10
  • Quantity: 
    10 ml
Notes:

Each 10 ml IFA vial contains 1.5 ml Mannide Monooleate and 8.5 ml Paraffin oil.

Shipping & Storage

  • Shipping method:  Room temperature

    • Storage:

    • 4°C
    Stability: 4°C for up to 2 years

    Caution:

    • Do not freeze

Details

IFA (Incomplete Freund’s adjuvant) is one of the most commonly used adjuvants in research.

It is prepared from non-metabolizable oils (paraffin oil and mannide monooleate) [1]. IFA does not contain killed Mycobacterium tuberculosis found in Complete Freund's Adjuvant (CFA) and is thus less inflammatory [1]. IFA induces a predominantly Th2-biased response through the formation of a depot at the injection site and the stimulation of antibody producing plasma cells [2]. It has been suggested that NOD2 modulates the adjuvant effects of IFA [3]. IFA is utilized to produce water-in-oil emulsions of antigens. It is routinely used for boosting immunizations subsequent to CFA. It can also be used for the initial immunization, particularly when a strong antigen is chosen or moderate antibody levels are sufficient.

 

1. Lindblad EB., 2000. Freund’s Adjuvants. In: Vaccine adjuvants: Preparation Methods and Research Protocols. Humana Press.Totowa, NJ.
2. Petrovsky N. & Aguilar JC., 2004. Vaccine adjuvants: Current state and future trends. Immunol Cell Biol. 82(5): 488-96.
3. Moreira L0. et al., 2008. Modulation of adaptive immunity by different adjuvant-antigen combinations in mice lacking Nod2. Vaccine 26(46): 5808-13.

DOCUMENTS

Documents

IFA

Technical Data Sheet

Safety Data Sheet

Certificate of analysis

Need a CoA ?

Contact us

You may also need

CUSTOMER SERVICE & TECHNICAL SUPPORT

Question about this product ?