Nitrogen-Doped Graphene Oxide Dots-Based “Turn-OFF”
H2O2, Au(III), and “Turn-OFF–ON”
Hg(II) Sensors as Logic Gates and Molecular Keypad Locks
Version 4 2019-06-26, 13:50Version 4 2019-06-26, 13:50
Version 3 2019-06-26, 13:49Version 3 2019-06-26, 13:49
Version 2 2019-06-20, 11:34Version 2 2019-06-20, 11:34
Version 1 2019-06-20, 11:33Version 1 2019-06-20, 11:33
Posted on 2019-06-26 - 13:50
Fluorescent
nitrogen-doped graphene oxide dots (NGODs) have been
demonstrated as an on–off nanosensor for the detection of Hg2+, Au3+, and H2O2. As compared
to l-cystine, where the luminescence signal recovery results
from the detachment of Hg2+ from the NGODs, signal recovery
through l-ascorbic acid (turn-off–on model) has been
attributed to the reduction of Hg2+ to Hg0.
The sustainable recovery of the photoluminescence signal is demonstrated
using common citrus fruits containing vitamin C (l-AA), suggesting
a promising practical usage of this sensing system. Additionally,
the sensitivity of NGOD- and AA-originated signal recovery from the
Hg(II)–NGODs mixture has been successfully tested in Hg2+ ion-spiked tap water from three different places. Mimic
devices were executed and verified on the basis of characteristic
spectral changes, and the possible utility of this system in electronic
security and memory element devices has also been demonstrated. Considering
an easy synthesis process and excellent performance of NGODs, this
investigation opens up new opportunities for preparing high-quality
fluorescent NGODs to meet the requirements of many applications.
CITE THIS COLLECTION
DataCite
DataCiteDataCite
3 Biotech3 Biotech
3D Printing in Medicine3D Printing in Medicine
3D Research3D Research
3D-Printed Materials and Systems3D-Printed Materials and Systems
4OR4OR
AAPG BulletinAAPG Bulletin
AAPS OpenAAPS Open
AAPS PharmSciTechAAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität HamburgAbhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)ABI Technik (German)
Academic MedicineAcademic Medicine
Academic PediatricsAcademic Pediatrics
Academic PsychiatryAcademic Psychiatry
Academic QuestionsAcademic Questions
Academy of Management DiscoveriesAcademy of Management Discoveries
Academy of Management JournalAcademy of Management Journal
Academy of Management Learning and EducationAcademy of Management Learning and Education
Academy of Management PerspectivesAcademy of Management Perspectives
Academy of Management ProceedingsAcademy of Management Proceedings
Academy of Management ReviewAcademy of Management Review