A rational study of the influence of Mn2+-insertion in Prussian blue nanoparticles on their photothermal properties | Zendy

Maëlle Cahu | Zendy; Lamiaa M. A. Ali | Zendy; Saad Sene | Zendy; Jérôme Long | Zendy; Franck Camerel | Zendy; Mathieu Ciancone | Zendy; Fabrice Salles | Zendy; Joël Chopineau | Zendy; JeanMarie Devoisselle | Zendy; Gautier Félix≠ | Zendy; Nicolas Cubedo | Zendy; Mireille Rossel | Zendy; Yannick Guari≠ | Zendy; Nadir Bettache | Zendy; Joulia Larionova≠ | Zendy; Magali GaryBobo | Zendy

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A rational study of the influence of Mn²⁺-insertion in Prussian blue nanoparticles on their photothermal properties

Author(s) -

Maëlle Cahu,

Lamiaa M. A. Ali,

Saad Sene,

Jérôme Long,

Franck Camerel,

Mathieu Ciancone,

Fabrice Salles,

Joël Chopineau,

JeanMarie Devoisselle,

Gautier Félix≠,

Nicolas Cubedo,

Mireille Rossel,

Yannick Guari≠,

Nadir Bettache,

Joulia Larionova≠,

Magali GaryBobo

Publication year - 2021

Publication title -

journal of materials chemistry b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.316

H-Index - 101

eISSN - 2050-7518

pISSN - 2050-750X

DOI - 10.1039/d1tb00888a

Subject(s) - prussian blue , photothermal therapy , nanoparticle , materials science , nuclear chemistry , in vivo , nanotechnology , chemistry , electrochemistry , electrode , microbiology and biotechnology , biology

We investigated a series of Mn 2+ -Prussian blue (PB) nanoparticles Na z Mn x Fe 1- x [Fe(CN) 6 ] 1- y □ y · n H 2 O of similar size, surface state and cubic morphology with various amounts of Mn 2+ synthesized through a one step self-assembly reaction. We demonstrated by a combined experimental-theoretical approach that during the synthesis, Mn 2+ substituted Fe 3+ up to a Mn/Na-Mn-Fe ratio of 32 at% in the PB structure, while for higher amounts, the Mn 2 [Fe(CN) 6 ] analogue is obtained. For comparison, the post-synthetic insertion of Mn2+ in PB nanoparticles was also investigated and completed with Monte-Carlo simulations to probe the plausible adsorption sites. The photothermal conversion efficiency ( η ) of selected samples was determined and showed a clear dependence on the Mn 2+ amount with a maximum efficiency for a Mn/Na-Mn-Fe ratio of 10 at% associated with a dependence on the nanoparticle concentration. Evaluation of the in vitro photothermal properties of these nanoparticles performed on triple negative human breast adenocarcinoma (MDA-MB-231) cells by using continuous and pulsed laser irradiation confirm their excellent PTT efficiency permitting low dose use.

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