Metal ion sensing with graphene quantum dots: Detection of harmful contaminants and biorelevant species

IA Revesz, SM Hickey, MJ Sweetman - Journal of Materials Chemistry …, 2022 - pubs.rsc.org
Graphene quantum dots (GQDs) are attractive materials for use as highly selective and
sensitive chemical sensors, owing to their simple preparation and affordability. GQDs have …

Zero-, one-and two-dimensional carbon nanomaterials as low-cost catalysts in optical and electrochemical sensing of biomolecules and environmental pollutants

NSK Gowthaman, M Amalraj, S Kesavan… - Microchemical …, 2023 - Elsevier
An arousing attention on carbon-based nanomaterials in the last two decades research is
mainly owing to their exceptional opto-electronic properties besides their superior chemical …

Design and analysis of high-sensitivity hormone sensor with KNN behavior prediction for healthcare and biomedical applications

J Wekalao, A Baz, SK Patel - Measurement, 2025 - Elsevier
This study presents an advanced sensor system integrating gold metasurfaces with
graphene for the detection of reproductive hormones via refractive index variations. The …

Conductivity tuning of charged triazine and heptazine graphitic carbon nitride (g-C3N4) quantum dots via nonmetal (B, O, S, P) do**: DFT calculations

M Ghashghaee, Z Azizi, M Ghambarian - Journal of Physics and Chemistry …, 2020 - Elsevier
Chemical do** of graphitic carbon nitride (gC 3 N 4) quantum dots with nontoxic
heteroatoms has proven to be an effective means for tuning the electrical properties of this …

Construction of graphene quantum dots ratiometric fluorescent probe by intermolecular electron transfer effect for intelligent and real-time visual detection of ofloxacin …

C Wang, F Qin, S Tang, X Li, T Li, G Guo, C Gu… - Food Chemistry, 2023 - Elsevier
The design of intelligent and real-time sensing devices is significant in the medical drug
monitoring field, but it is still highly challenging. Here, ratiometric fluorescent detections of …

Graphene and graphene oxide as adsorbents for cadmium and lead heavy metals: A theoretical investigation

SM Elgengehi, S El-Taher, MAA Ibrahim… - Applied Surface …, 2020 - Elsevier
The geometrical and electronic parameters for the interaction of two toxic heavy metals,
namely: cadmium (Cd) and lead (Pb), on graphene and graphene oxide (GO) surfaces are …

Interactive behavior of graphene quantum dots towards noble metal surfaces

W Saeed, Z Abbasi, M Bilal, SH Shah… - Physica E: Low …, 2023 - Elsevier
The interactive behavior of graphene quantum dots towards noble metal surfaces was
studied by using corresponding noble metal nanoparticles as representative of these …

Doped graphene quantum dots UV–Vis absorption spectrum: a high-throughput TDDFT study

S Ozonder, C Unlu, C Guleryuz, L Trabzon - ACS omega, 2023 - ACS Publications
We report on time-dependent density functional theory calculations of the excited states of
63 different graphene quantum dots (GQDs) in square shape with side lengths of 1, 1.5, and …

Real-time sensing of lead with epitaxial graphene-integrated microfluidic devices

MF Santangelo, I Shtepliuk, D Filippini, IG Ivanov… - Sensors and Actuators B …, 2019 - Elsevier
Since even low concentrations of toxic heavy metals can seriously damage human health, it
is important to develop simple, sensitive and accurate methods for their detection …