Evidence map›Paper›PMID 30968221›Full record

ArticlePharmaceutical research2019

Tribo-Charging Behaviour of Inhalable Mannitol Blends with Salbutamol Sulphate.

S Zellnitz, J T Pinto, M Brunsteiner, H Schroettner, J Khinast, A Paudel

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Article in Pharmaceutical research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

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6citing papers in PubMed
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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

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

S ZellnitzResearch Center Pharmaceutical Engineering GmbH, 8010, Graz, Austria.
J T PintoResearch Center Pharmaceutical Engineering GmbH, 8010, Graz, Austria.
M BrunsteinerResearch Center Pharmaceutical Engineering GmbH, 8010, Graz, Austria.
H SchroettnerAustrian Centre for Electron Microscopy and Nanoanalysis, Graz University of Technology, 8010, Graz, Austria.
J KhinastResearch Center Pharmaceutical Engineering GmbH, 8010, Graz, Austria.
A PaudelResearch Center Pharmaceutical Engineering GmbH, 8010, Graz, Austria. amrit.paudel@rcpe.at.

Funding

Österreichische Forschungsförderungsgesellschaft COMETprogram
6 · The paper itself

Abstract

purposeThe performance of carrier-based dry powder inhaler (DPI) formulations can be critically impacted by interfacial interactions driven by tribo-electrification. Therefore, the aim of the present work was to understand how distinct API particle characteristics affect the charging behaviour of blends intended for DPI delivery.

methodsSalbutamol sulphate (SBS) particles engineered via spray-drying and jet milling were used as model APIs. D-mannitol was selected as a model carrier. The materials were characterized concerning their different particle properties and their charge was analysed alone and in blends before and after flow over a stainless-steel pipe.

resultsThe spray-dried SBS (amorphous and spherical) charged positively and to a higher extent than jet milled SBS (crystalline and acicular) that charged negatively and to a lower extent. D-mannitol charged positively and to a higher extent than the APIs. All drug-excipient blends charged negatively and differences were found between the spray-dried and jet milled SBS blends at 2% and 5% drug loads.

conclusionsIt was demonstrated how distinct solid-states, particle shape, size and morphology as well as different water contents of the different materials can affect tribo-charging. For their binary blends, the amount and nature of fines seem to govern inter-particle contacts critically impacting charge evolution.

Indexed as

Administration, InhalationAlbuterolChemistry, PharmaceuticalDrug CarriersDry Powder InhalersExcipientsHumansMannitolParticle SizePowdersSurface PropertiesAlbuterolDrug CarriersExcipientsMannitolPowdersdry powder inhaler (DPI)inhalationparticle/material propertiespowder blendspowder processing

Identifiers

PMID30968221
PMCPMC6456482

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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.