Evidence map›Paper›PMID 31275527›Full record

ArticleNano research2019

Nanoscale Chemical Imaging of Individual, Chemotherapeutic Cytarabine-loaded Liposomal Nanocarriers.

Karin Wieland, Georg Ramer, Victor U Weiss, Guenter Allmaier, Bernhard Lendl, Andrea Centrone

Open access · greenAbstract read
In one paragraph

Article in Nano research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 80 citations in OpenAlex.

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  15. Lipids uniquely alter rates of insulin aggregation and lower toxicity of amyloid aggregates.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2023
    Article
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  20. Nanoscale Structural Analysis of a Lipid-Driven Aggregation of Insulin.The journal of physical chemistry letters · 2022
    Article
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 at 3 institutions in 2 countries.

Karin WielandInstitute of Chemical Technologies and Analytics. Research Division Environmental, Process Analytics and Sensors, TU Wien, Vienna 1060, Austria.
Georg RamerCenter for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
Victor U WeissInstitute of Chemical Technologies and Analytics. Research Division Instrumental and Imaging Analytical Chemistry, TU Wien, Vienna 1060, Austria.
Guenter AllmaierInstitute of Chemical Technologies and Analytics. Research Division Instrumental and Imaging Analytical Chemistry, TU Wien, Vienna 1060, Austria.
Bernhard LendlInstitute of Chemical Technologies and Analytics. Research Division Environmental, Process Analytics and Sensors, TU Wien, Vienna 1060, Austria.
Andrea CentroneCenter for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.
TU Wien · ATCenter for Nanoscale Science and Technology · USNational Institute of Standards and Technology · US

Funding

Intramural NIST DOC 9999-NIST
6 · The paper itself

Abstract

Dosage of chemotherapeutic drugs is a tradeoff between efficacy and side-effects. Liposomes are nanocarriers that increase therapy efficacy and minimize side-effects by delivering otherwise difficult to administer therapeutics with improved efficiency and selectivity. Still, variabilities in liposome preparation require assessing drug encapsulation efficiency at the single liposome level, an information that, for non-fluorescent therapeutic cargos, is inaccessible due to the minute drug load per liposome. Photothermal induced resonance (PTIR) provides nanoscale compositional specificity, up to now, by leveraging an atomic force microscope (AFM) tip contacting the sample to transduce the sample's photothermal expansion. However, on soft samples (e.g. liposomes) PTIR effectiveness is reduced due to the likelihood of tip-induced sample damage and inefficient AFM transduction. Here, individual liposomes loaded with the chemotherapeutic drug cytarabine are deposited intact from suspension via nES-GEMMA (nano-electrospray gas-phase electrophoretic mobility molecular analysis) collection and characterized at the nanoscale with the chemically-sensitive PTIR method. A new tapping-mode PTIR imaging paradigm based on heterodyne detection is shown to be better adapted to measure soft samples, yielding cytarabine distribution in individual liposomes and enabling classification of empty and drug-loaded liposomes. The measurements highlight PTIR capability to detect ≈ 10

Indexed as

cytarabinedrug deliveryliposomesnanocarriersnanoscale chemical imagingTapping PTIR

Identifiers

PMID31275527
PMCPMC6604632
OpenAlexW2893962022

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.