Evidence map›Paper›PMID 34452106›Full record

ArticlePharmaceutics2021

Fluorescently Labeled PLGA Nanoparticles for Visualization In Vitro and In Vivo: The Importance of Dye Properties.

Vasilisa Zhukova, Nadezhda Osipova, Aleksey Semyonkin, Julia Malinovskaya, Pavel Melnikov, Marat Valikhov, Yuri Porozov, Yaroslav Solovev, Pavel Kuliaev, Enqi Zhang and 8 more

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

20 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Pooled Nanoparticle Screening Using a Chemical Barcoding Approach.Angewandte Chemie (International ed. in English) · 2025
    Article
  9. Article
  10. Nanoencapsulation of vitamin BJournal of food science · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Intracellular Trafficking of Size-Tuned Nanoparticles for Drug Delivery.International journal of molecular sciences · 2023
    Article
  15. Review
  16. Nanotechnology-based mRNA vaccines.Nature reviews. Methods primers · 2023
    Article
  17. Article
  18. Article
  19. Review
  20. 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

18 authors at 7 institutions in 2 countries.

Vasilisa ZhukovaDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.ORCID 0000-0001-7136-4133
Nadezhda OsipovaDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.
Aleksey SemyonkinDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.ORCID 0000-0002-9703-6047
Julia MalinovskayaDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.
Pavel MelnikovDepartment of Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Kropotkinskiy per. 23, 119034 Moscow, Russia.
Marat ValikhovDepartment of Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Kropotkinskiy per. 23, 119034 Moscow, Russia.
Yuri PorozovWorld-Class Research Center "Digital Biodesign and Personalized Healthcare", I.M. Sechenov First Moscow State Medical University, Trubetskaya ul. 8, 119048 Moscow, Russia.ORCID 0000-0002-5450-3135
Yaroslav SolovevLaboratory of Bioinformatics Approaches in Combinatorial Chemistry and Biology, Department of Functioning of Living Systems, Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya ul. 16/10, 119991 Moscow, Russia.
Pavel KuliaevTheoMAT Group, ITMO University, Kronverkskiy pr. 49, 197101 Saint Petersburg, Russia.
Enqi ZhangInstitute of Medical Psychology, Otto-von-Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany.
Bernhard A SabelInstitute of Medical Psychology, Otto-von-Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany.
Vladimir ChekhoninDepartment of Neurobiology, V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Health of the Russian Federation, Kropotkinskiy per. 23, 119034 Moscow, Russia.
Maxim AbakumovDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.ORCID 0000-0003-2622-9201
Alexander MajougaDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.
Jörg KreuterInstitute of Pharmaceutical Technology, Biocenter, Goethe University, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany.
Petra Henrich-NoackInstitute of Medical Psychology, Otto-von-Guericke University, Leipziger Str. 44, 39120 Magdeburg, Germany.
Svetlana GelperinaDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.ORCID 0000-0003-1113-6715
Olga MaksimenkoDrug Delivery Systems Laboratory, D. Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.
D. Mendeleyev University of Chemical Technology of Russia · RUMinistry of Health of the Russian Federation · RUOtto-von-Guericke-Universität Magdeburg · DEGoethe University Frankfurt · DEInstitute of Bioorganic Chemistry · RUITMO University · RUSechenov University · RU

Funding

China Scholarship Council 201506990036Era. Net. RUS. Plus NABUCO ID#169Ministry of Science and Higher Education of the Russian Federation 075-15-2020-792 (unique identifier RF-190220X0031)
6 · The paper itself

Abstract

Fluorescently labeled nanoparticles are widely used for evaluating their distribution in the biological environment. However, dye leakage can lead to misinterpretations of the nanoparticles' biodistribution. To better understand the interactions of dyes and nanoparticles and their biological environment, we explored PLGA nanoparticles labeled with four widely used dyes encapsulated (coumarin 6, rhodamine 123, DiI) or bound covalently to the polymer (Cy5.5.). The DiI label was stable in both aqueous and lipophilic environments, whereas the quick release of coumarin 6 was observed in model media containing albumin (42%) or liposomes (62%), which could be explained by the different affinity of these dyes to the polymer and lipophilic structures and which we also confirmed by computational modeling (log PDPPC/PLGA: DiI-2.3, Cou6-0.7). The importance of these factors was demonstrated by in vivo neuroimaging (ICON) of the rat retina using double-labeled Cy5.5/Cou6-nanoparticles: encapsulated Cou6 quickly leaked into the tissue, whereas the stably bound Cy.5.5 label remained associated with the vessels. This observation is a good example of the possible misinterpretation of imaging results because the coumarin 6 distribution creates the impression that nanoparticles effectively crossed the blood-retina barrier, whereas in fact no signal from the core material was found beyond the blood vessels.

Indexed as

brightnessconfocal microscopycoumarin 6Cy5.5DiIfluorescent labelingintracellular internalizationin vivo neuroimagingPLGA nanoparticlesquantum yieldrhodamine 123stability of fluorescent label

Identifiers

PMID34452106
PMCPMC8399891
OpenAlexW3186007287

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.