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New immobilization method of anti-PepD monoclonal antibodies for the detection of Listeria monocytogenes p60 protein – Part A: Optimization of a crosslinked film support based on chitosan and cellulose nanocrystals (CNC)

Abstract : This paper presents the development of a support membrane based on chitosan, cellulose nanocrystals and glycerol (m-CCG) for the antibody immobilization by a covalent crosslinking using glutaraldehyde. The chemical characterization of the support by FTIR showed that m-CCG formation process was stabilized by the formation of hydrogen bonding between each component of m-CCG and the reactive amine groups allowing the antibody immobilization on m-CCG via glutaraldehyde. Moreover, this immobilization on m-CCG was optimized by mathematics modeling approaches, and it exhibited robustness and predictable detection in presence of 0.6% of cellulose nanocrystals (CNCs), 0.5 g of CCG solution per well, after 2 h of antibody immobilization. Results also showed that CNCs (0.6% w/v) was the most important factor of the optimization. At this concentration, CNCs improve the resistance of m-CCG during the crosslinking treatment by a modification of the surface topography and the reinforcement of the tensile strength of m-CCG at >30%.
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https://hal-riip.archives-ouvertes.fr/pasteur-02275305
Contributor : Michel Courcelles <>
Submitted on : Friday, August 30, 2019 - 3:57:08 PM
Last modification on : Thursday, September 5, 2019 - 1:05:35 AM

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Marie-Christine Etty, Sabato d'Auria, Shiv Shankar, Stéphane Salmieri, Julie Coutu, et al.. New immobilization method of anti-PepD monoclonal antibodies for the detection of Listeria monocytogenes p60 protein – Part A: Optimization of a crosslinked film support based on chitosan and cellulose nanocrystals (CNC). Reactive and Functional Polymers, Elsevier, 2019, pp.104313. ⟨10.1016/j.reactfunctpolym.2019.06.021⟩. ⟨pasteur-02275305⟩

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