Evidence map›Paper›PMID 29184403›Full record

ArticleInternational journal of nanomedicine2017

Confocal laser scanning microscopy to estimate nanoparticles' human skin penetration in vitro.

Ying Zou, Anna Celli, Hanjiang Zhu, Akram Elmahdy, Yachao Cao, Xiaoying Hui, Howard Maibach

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

11 citing papers in PubMed, 32 citations in OpenAlex.

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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

7 authors at 2 institutions in 2 countries.

Ying Zou *Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, People's Republic of China.
Anna Celli *Department of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Hanjiang Zhu *Department of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Akram ElmahdyDepartment of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Yachao CaoDepartment of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Xiaoying HuiDepartment of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
Howard MaibachDepartment of Dermatology, School of Medicine, University of California San Francisco, San Francisco, CA, USA.
University of California, San Francisco · USSan Francisco VA Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWith rapid development of nanotechnology, there is increasing interest in nanoparticle (NP) application and its safety and efficacy on human skin. In this study, we utilized confocal laser scanning microscopy to estimate NP skin penetration.

methodsThree different-sized polystyrene NPs marked with red fluorescence were applied to human skin, and Calcium Green 5N was used as a counterstain. Dimethyl sulfoxide (DMSO) and ethanol were used as alternative vehicles for NPs. Tape stripping was utilized as a barrier-damaged skin model. Skin biopsies dosed with NPs were incubated at 4°C or 37°C for 24 hours and imaged using confocal laser scanning microscopy.

resultsNPs were localized in the stratum corneum (SC) and hair follicles without penetrating the epidermis/dermis. Barrier alteration with tape stripping and change in incubation temperature did not induce deeper penetration. DMSO enhanced NP SC penetration but ethanol did not.

conclusionExcept with DMSO vehicle, these hydrolyzed polystyrene NPs did not penetrate intact or barrier-damaged human "viable" epidermis. For further clinical relevance, in vivo human skin studies and more sensitive analytic chemical methodology are suggested.

Indexed as

NanoparticlesEpidermisHumansMicroscopy, ConfocalOrganic ChemicalsParticle SizeSkinSkin AbsorptionTemperaturecalcium greenOrganic Chemicalsconfocal laser scanning microscopynanoparticlesskin penetrationstratum corneumtape stripping

Identifiers

PMID29184403
PMCPMC5673047
OpenAlexW2765380758

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.