Number of Nanoparticles per Cell through a Spectrophotometric Method - A key parameter to Assess Nanoparticle-based Cellular Assays.

Number of Nanoparticles per Cell through a Spectrophotometric Method - A key parameter to Assess Nanoparticle-based Cellular Assays.
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DOI:
10.1038/srep10091
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发表时间:
2015-05-15
期刊:
影响因子:
4.6
通讯作者:
Sánchez-Martín RM
Sánchez-Martín RM
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Unciti-Broceta JD;Cano-Cortés V;Altea-Manzano P;Pernagallo S;Díaz-Mochón JJ;Sánchez-Martín RM

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Engineered nanoparticles (eNPs) for biological and biomedical applications are produced from functionalised nanoparticles (NPs) after undergoing multiple handling steps, giving rise to an inevitable loss of NPs. Herein we present a practical method to quantify nanoparticles (NPs) number per volume in an aqueous suspension using standard spectrophotometers and minute amounts of the suspensions (up to 1 μL). This method allows, for the first time, to analyse cellular uptake by reporting NPs number added per cell, as opposed to current methods which are related to solid content (w/V) of NPs. In analogy to the parameter used in viral infective assays (multiplicity of infection), we propose to name this novel parameter as multiplicity of nanofection.
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