ArticleScientific reports2026
Theoretical investigation of fast illicit drug detection via ternary photonic crystals.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Enhanced urine refractive index sensing using a defect-engineered one-dimensional photonic crystal.Scientific reports · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study presents a theoretical investigation of a highly sensitive optical sensor based on a one-dimensional ternary photonic crystal (1D-TPC) for rapid detection of illicit drugs. The proposed structure consists of alternating layers of polyaniline (PANI), lead sulfide (PbS), and AlₓGa₁₋ₓN quantum dots, incorporating a central defect layer that serves as the sensing region. The detection mechanism relies on monitoring shifts in the defect-mode wavelength induced by variations in the refractive index of different illicit substances. Numerical simulations were carried out using the transfer matrix method (TMM) to analyze the transmission characteristics of the structure under various operating conditions. The influence of key parameters—including aluminum mole fraction, defect layer thickness, incident angle, and number of periods—was systematically investigated. The results demonstrate pronounced tunability of the defect mode and a strong dependence of sensor performance on structural optimization. A maximum sensitivity of 5219.29 nm/RIU was achieved under optimal conditions, indicating excellent detection capability. The obtained results confirm that the proposed photonic crystal sensor offers high sensitivity, strong spectral response, and reliable performance, making it a promising platform for label-free and rapid detection of illicit drugs in forensic and biomedical applications.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.