Evidence map›Paper›PMID 32099339›Full record

ArticleNanotechnology, science and applications2019

Loading Amlodipine on Diamond Nanoparticles: A Novel Drug Delivery System.

Shawqi H Alawdi, Housam Eidi, Marwa M Safar, Mosaad A Abdel-Wahhab

Open access · goldAbstract read
In one paragraph

Article in Nanotechnology, science and applications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

14 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Reinventing amlodipine.The Journal of pharmacology and experimental therapeutics · 2026
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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

4 authors at 4 institutions in 3 countries.

Shawqi H AlawdiDepartment of Pharmacology, Faculty of Medicine and Health Sciences, Thamar University, Dhamar, Yemen.ORCID 0000-0003-0779-1776
Housam EidiDepartment of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, Canada.
Marwa M SafarPharmacology and Toxicology Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
Mosaad A Abdel-WahhabDepartment of Food Toxicology and Contaminants, National Research Center, Cairo, Egypt.ORCID 0000-0002-7174-3341
Cairo University · EGNational Water Research Center · EGUniversity of British Columbia · CAUniversity of Science and Technology · YE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiamond nanoparticles (Nanodiamond) are biocompatible drug delivery platforms with outstanding surface properties. Their passage into the brain has been confirmed previously. Thus, nanodiamond could provide a drug delivery system to shuttle several drugs through the blood-brain barrier (BBB) which represents a real challenge for the effective delivery of several drugs into the brain. Amlodipine is a calcium channel blocker that cannot pass through BBB and may elicit neuroprotective effects to reverse calcium-induced excitotoxicity and mitochondrial dysfunction that underlie several neurologic disorders including Alzheimer's disease and stroke.

aimThe study aimed to investigate the loading of amlodipine on nanodiamond particles.

methodsNanodiamond particles were oxidized in a strong oxidizing acidic mixture of sulfuric and nitric acids. Adsorption of amlodipine on nanodiamond particles was achieved in alkaline pH using various concentrations of sodium hydroxide. The loaded amlodipine was determined by high-performance liquid chromatography and confirmed by Fourier transform infrared (FTIR) spectroscopy and transmission electron microscopy.

resultsThe highest percentage (41%) of loaded amlodipine onto nanodiamond particles was achieved in alkaline medium using 2 mM NaOH at a corresponding pH of 8.5. Also, characteristic FTIR bands of amlodipine and nanodiamond were shown obviously in the nanodiamond-amlodipine conjugates. Moreover, the successful loading of amlodipine on diamond nanoparticles was confirmed by transmission electron microscopy.

conclusionThe present study demonstrates the successful loading of amlodipine onto nanodiamond particles. These findings offer a potential for applying diamond nanoparticles as a drug delivery system to shuttle amlodipine into the brain and open the door to deliver other similar drugs into the brain.

Indexed as

amlodipineblood-brain barriercalcium channel antagonistsdiamond nanoparticlesdrug delivery systemexcitotoxicitynanodiamond

Identifiers

PMID32099339
PMCPMC6997232
OpenAlexW2998290595

What OpenQuestion holds

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LicenceCC BY-NC
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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.