Evidence map›Paper›PMID 22619529›Full record

ArticleInternational journal of nanomedicine2012

Toxicity and antibacterial assessment of chitosan-coated silver nanoparticles on human pathogens and macrophage cells.

Prajna Jena, Soumitra Mohanty, Rojee Mallick, Biju Jacob, Avinash Sonawane

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
9.0field-weighted citation impact, top 1% 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

66 citing papers in PubMed, 220 citations in OpenAlex.

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  13. Therapeutic applications of nanobiotechnology.Journal of nanobiotechnology · 2023
    Review
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  15. Article
  16. Article
  17. Silver Nanoparticles Phytofabricated throughAntibiotics (Basel, Switzerland) · 2023
    Article
  18. Review
  19. Article
  20. Article

6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Prajna JenaSchool of Biotechnology, KIIT University, Bhubaneswar, Orissa, India.
Soumitra Mohanty
Rojee Mallick
Biju Jacob
Avinash Sonawane
KIIT University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPathogenic bacteria are able to develop various strategies to counteract the bactericidal action of antibiotics. Silver nanoparticles (AgNPs) have emerged as a potential alternative to conventional antibiotics because of their potent antimicrobial properties. The purpose of this study was to synthesize chitosan-stabilized AgNPs (CS-AgNPs) and test for their cytotoxic, genotoxic, macrophage cell uptake, antibacterial, and antibiofilm activities.

methodsAgNPs were synthesized using chitosan as both a stabilizing and a reducing agent. Antibacterial activity was determined by colony-forming unit assay and scanning electron microscopy. Genotoxic and cytotoxic activity were determined by DNA fragmentation, comet, and MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assays. Cellular uptake and intracellular antibacterial activity were tested on macrophages.

resultsCS-AgNPs exhibited potent antibacterial activity against different human pathogens and also impeded bacterial biofilm formation. Scanning electron microscopy analysis indicated that CS-AgNPs kill bacteria by disrupting the cell membrane. CS-AgNPs showed no significant cytotoxic or DNA damage effect on macrophages at the bactericidal dose. Propidium iodide staining indicated active endocytosis of CS-AgNPs resulting in reduced intracellular bacterial survival in macrophages.

conclusionThe present study concludes that at a specific dose, chitosan-based AgNPs kill bacteria without harming the host cells, thus representing a potential template for the design of antibacterial agents to decrease bacterial colonization and to overcome the problem of drug resistance.

Indexed as

AnimalsAnti-Bacterial AgentsBacteriaBiofilmsCell LineChitosanDNA DamageHumansMacrophagesMetal NanoparticlesMiceMicroscopy, Electron, ScanningMycobacterium smegmatisNanocompositesNanomedicinePseudomonas aeruginosaAnti-Bacterial AgentsChitosanSilverantibiofilmchitosan-silver nanoparticlescytotoxicitygenotoxicity

Identifiers

PMID22619529
PMCPMC3356211
OpenAlexW1503907471

What OpenQuestion holds

Textmetadata
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.