Evidence map›Paper›PMID 35411509›Full record

ArticlePharmaceutical research2022

Application of Confocal Raman Microscopy for the Characterization of Topical Semisolid Formulations and their Penetration into Human Skin Ex Vivo.

Nathalie Jung, Sarika Namjoshi, Yousuf Mohammed, Jeffrey E Grice, Heather A E Benson, Sam G Raney, Michael S Roberts, Maike Windbergs

Abstract read
In one paragraph

Article in Pharmaceutical research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

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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

8 authors.

Nathalie JungInstitute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University, Frankfurt, Germany.
Sarika NamjoshiDiamantina Institute, The University of Queensland, Brisbane, Australia.
Yousuf MohammedDiamantina Institute, The University of Queensland, Brisbane, Australia.
Jeffrey E GriceDiamantina Institute, The University of Queensland, Brisbane, Australia.
Heather A E BensonCurtin Medical School, Curtin University, Perth, Australia.
Sam G RaneyOffice of Research and Standards, Office of Generic Drugs, U.S. Food and Drug Administration, Silver Spring, MD, USA.
Michael S RobertsDiamantina Institute, The University of Queensland, Brisbane, Australia.
Maike WindbergsInstitute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University, Frankfurt, Germany. windbergs@em.uni-frankfurt.de.ORCID http://orcid.org/0000-0001-9475-699X

Funding

FDA HHS U01 FD005226
6 · The paper itself

Abstract

purposeThe quality testing and approval procedure for most pharmaceutical products is a streamlined process with standardized procedures for the determination of critical quality attributes. However, the evaluation of semisolid dosage forms for topical drug delivery remains a challenging task. The work presented here highlights confocal Raman microscopy (CRM) as a valuable tool for the characterization of such products.

methodsCRM, a laser-based method, combining chemically-selective analysis and high resolution imaging, is used for the evaluation of different commercially available topical acyclovir creams.

resultsWe show that CRM enables the spatially resolved analysis of microstructural features of semisolid products and provides insights into drug distribution and polymorphic state as well as the composition and arrangement of excipients. Further, we explore how CRM can be used to monitor phase separation and to study skin penetration and the interaction with fresh and cryopreserved excised human skin tissue.

conclusionThis study presents a comprehensive overview and illustration of how CRM can facilitate several types of key analyses of semisolid topical formulations and of their interaction with their biological target site, illustrating that CRM is a useful tool for research, development as well as for quality testing in the pharmaceutical industry.

Indexed as

SkinSkin AbsorptionDrug CompoundingExcipientsHumansMicroscopy, ConfocalSpectrum Analysis, RamanExcipientsacyclovirbioequivalenceconfocal Raman microscopynon-invasive imagingskin delivery

Identifiers

PMID35411509
PMCPMC9160154

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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.