Evidence map›Paper›PMID 36144765›Full record

ArticleMolecules (Basel, Switzerland)2022

PLGA-PVA-PEG Single Emulsion Method as a Candidate for Aminolevulinic Acid (5-ALA) Encapsulation: Laboratory Scaling Up and Stability Evaluation.

Geisiane Rosa da Silva, Amanda Luizetto Dos Santos, Andrey Coatrini Soares, Marinalva Cardoso Dos Santos, Sandra Cruz Dos Santos, Ştefan Ţălu, Vânia Rodrigues de Lima, Vanderlei Salvador Bagnato, Edgar Aparecido Sanches, Natalia Mayumi Inada

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
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

10 authors at 5 institutions in 2 countries.

Geisiane Rosa da SilvaSão Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil.
Amanda Luizetto Dos SantosNanomed-Innovation in Nanotechnology, São Paulo 13560-110, Brazil.
Andrey Coatrini SoaresSão Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil.ORCID 0000-0003-4601-3555
Marinalva Cardoso Dos SantosChemical and Food School, Federal University of Rio Grande (FURG), Rio Grande 96203-000, Brazil.
Sandra Cruz Dos SantosChemical and Food School, Federal University of Rio Grande (FURG), Rio Grande 96203-000, Brazil.
Ştefan ŢăluThe Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Romania.ORCID 0000-0003-1311-7657
Vânia Rodrigues de LimaChemical and Food School, Federal University of Rio Grande (FURG), Rio Grande 96203-000, Brazil.
Vanderlei Salvador BagnatoSão Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil.ORCID 0000-0003-4833-239X
Edgar Aparecido SanchesLaboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, Brazil.ORCID 0000-0002-1446-723X
Natalia Mayumi InadaSão Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Paulo 13560-110, Brazil.ORCID 0000-0003-1940-186X
Universidade Federal de São Carlos · BRUniversidade Federal do Rio Grande · BRNanomed (Brazil) · BRTechnical University of Cluj-Napoca · ROUniversidade Federal do Amazonas · BR

Funding

Coordenação de Aperfeicoamento de Pessoal de Nível Superior CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Código Financeiro 001), CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico, grant number 403496/2013-6, Programa Sisfóton and INCT), FAPEAM (Fundação de Amparo à Pesquis
6 · The paper itself

Abstract

One of the most widely used molecules used for photodynamic therapy (PDT) is 5-aminolevulinic acid (5-ALA), a precursor in the synthesis of tetrapyrroles such as chlorophyll and heme. The 5-ALA skin permeation is considerably reduced due to its hydrophilic characteristics, decreasing its local bioavailability and therapeutic effect. For this reason, five different systems containing polymeric particles of poly [D, L-lactic-co-glycolic acid (PLGA)] were developed to encapsulate 5-ALA based on single and double emulsions methodology. All systems were standardized (according to the volume of reagents and mass of pharmaceutical ingredients) and compared in terms of laboratory scaling up, particle formation and stability over time. UV-VIS spectroscopy revealed that particle absorption/adsorption of 5-ALA was dependent on the method of synthesis. Different size distribution was observed by DLS and NTA techniques, revealing that 5-ALA increased the particle size. The contact angle evaluation showed that the system hydrophobicity was dependent on the surfactant and the 5-ALA contribution. The FTIR results indicated that the type of emulsion influenced the particle formation, as well as allowing PEG functionalization and interaction with 5-ALA. According to the

Indexed as

Aminolevulinic AcidPolyglycolic AcidChlorophyllEmulsionsHemeLactic AcidParticle SizePolyethylene GlycolsPolylactic Acid-Polyglycolic Acid CopolymerPolyvinyl AlcoholSurface-Active AgentsTetrapyrrolesAminolevulinic AcidChlorophyllEmulsionsHemeLactic AcidPolyethylene GlycolsPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerPolyvinyl AlcoholSurface-Active AgentsTetrapyrrolesaminolevulinic acidpolyethylene glycolpoly (lactic acid-co-glycolic acid)polymeric particles

Identifiers

PMID36144765
PMCPMC9506276
OpenAlexW4296800644

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.