Evidence map›Paper›PMID 31681475›Full record

ArticleJournal of materials chemistry. B2019

Mechanism of formation governs the mechanism of release of antibiotics from calcium phosphate nanopowders and cements in a drug-dependent manner.

Vuk Uskoković

Abstract read
In one paragraph

Article in Journal of materials chemistry. B, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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

16 citing papers in PubMed.

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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

1 author.

Vuk UskokovićDepartment of Bioengineering, University of Illinois, Chicago, IL, USA.ORCID 0000-0003-3256-1606

Funding

Osteogenic Calcium Phosphate Nanoparticles with Designable Drug Release KineticsR00DE021416 · NIDCR · UNIVERSITY OF ILLINOIS AT CHICAGO · PI USKOKOVIC, VUK · 2014 to 2016
$727k
NIDCR NIH HHS R00 DE021416
6 · The paper itself

Abstract

The kinetics of drug release from hydroxyapatite (HAp) cements could be tuned by controlling the kinetics of crystallization of their HAp precursor powders during synthesis. Here it is shown that this history of formation affects not only the kinetics, but also the mechanism of release. Cements composed of two HAp powders precipitated under different conditions, one (HAp2) taking twice longer to transform from the amorphous to the crystalline state than the other (HAp1), were mixed at different ratios to tune their drug release kinetics and tested for the release mechanism in conjunction with compositional and microstructural analyses. While the cement component converting to the amorphous phase during gelation (HAp2) exhibited a faster, but also more anomalous, non-Fickian mechanism of release of vancomycin, the cement component retaining its crystalline state all throughout gelation, setting and hardening (HAp1) stabilized at the ideal, Fickian diffusion case corresponding to the Korsmeyer-Peppas exponent value of 0.45 ± 0.02. This effect got reversed for the other antibiotic studied as a drug, ciprofloxacin, in which case HAp2 exhibited the ideal, Fickian diffusion with

Indexed as

Anti-Bacterial AgentsCalcium PhosphatesChitosanCiprofloxacinDrug CarriersDrug LiberationGelatinHydrogen-Ion ConcentrationHydroxyapatitesKineticsNanostructuresVancomycinAnti-Bacterial AgentsCalcium PhosphatesChitosanCiprofloxacinDrug CarriersGelatinhydroxyapatite cementHydroxyapatitesVancomycin

Identifiers

PMID31681475
PMCPMC6824273

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Registered trials

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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.