Evidence map›Paper›PMID 40304139›Full record

ArticleNanomedicine (London, England)2025

Liquid chromatography-based metallomics and transmission electron microscopy reveal gold nanoparticle surface treatment with vicinal dithiols to abolish protein corona formation.

Negar Pourzadi, Lorenzo Chiaverini, Magdalene Patricia Gieschen, Inga Ennen, Andreas Hütten, Jürgen Gailer

Abstract read
In one paragraph

Article in Nanomedicine (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Negar PourzadiDepartment of Chemistry, University of Calgary, Calgary, Canada.
Lorenzo ChiaveriniDepartment of Pharmacy, University of Pisa, Pisa, Italy.
Magdalene Patricia GieschenDepartment of Chemistry, University of Calgary, Calgary, Canada.
Inga EnnenDepartment of Physics, Bielefeld University, Bielefeld, Germany.
Andreas HüttenDepartment of Physics, Bielefeld University, Bielefeld, Germany.
Jürgen GailerDepartment of Chemistry, University of Calgary, Calgary, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsWhile gold nanoparticles (AuNPs) should allow the delivery of surface immobilized drugs to intended target tissues via the bloodstream, their interactions with plasma proteins may induce their aggregation and thus impede an effective delivery of chemotherapeutic agents to target tissues. The deliberate surface treatment of AuNPs has the potential to overcome this inherent limitation.

methodsTo probe interactions between surface treated AuNPs in blood plasma, we employed a size-exclusion chromatography (SEC)-based metallomics tool together with transmission electron microscopy (TEM).

resultsAfter the addition of citrate capped AuNPs to plasma, its metallomics analysis revealed a >670 kDa Au species, which TEM analysis identified as AuNP-plasma protein aggregates. To ameliorate the formation of the latter, the surface of citrate capped AuNPs was modified with dithiothreitol (DTT), meso 2,3-dimercaptosuccinic acid (DMSA), or 2,3 dimercapto-1-propionesulfonic acid (DMPS) and the effect of this surface treatment was probed after the addition of these modified AuNPs to rabbit plasma. The results for DMSA/DMPS-treated AuNPs revealed that the tight binding of these dithiols more significantly reduced protein corona formation compared to DTT-AuNPs implying that the surface treatment of AuNPs with DMSA or DMPS is a feasible strategy to control protein corona formation and thus their aggregation in plasma.

conclusionsThe AuNP-based delivery of immobilized drugs using targeting sequences to cancer tissues can be enhanced by their surface treatment with DMSA or DMPS. Since dithiols left over after the AuNP surface treatment mobilized iron from plasma metalloproteins, excess dithiols must be removed before injecting patients.

Indexed as

GoldMetal NanoparticlesProtein CoronaSulfhydryl CompoundsAnimalsBlood ProteinsChromatography, LiquidHumansMicroscopy, Electron, TransmissionRabbitsSurface PropertiesBlood ProteinsGoldProtein CoronaSulfhydryl CompoundsAuNP aggregationAuNP-based drug deliveryblood plasmaenhanced target recognitionreduced side effectssurface modificationtandem approachtumor targeting

Identifiers

PMID40304139
PMCPMC12068335

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.