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@ARTICLE{Lo:904351,
author = {Lo, Young and Cheung, Yee-Wai and Wang, Lin and Lee, Megan
and Figueroa-Miranda, Gabriela and Liang, Shaolin and Mayer,
Dirk and Tanner, Julian Alexander},
title = {{A}n electrochemical aptamer-based biosensor targeting
{P}lasmodium falciparum histidine-rich protein {II} for
malaria diagnosis},
journal = {Biosensors and bioelectronics},
volume = {192},
issn = {0956-5663},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2021-05921},
pages = {113472 -},
year = {2021},
abstract = {Malaria is an infectious disease caused by parasitic
protozoans from the genus Plasmodium, with the species P.
falciparum causing the highest number of deaths worldwide.
Rapid diagnostic tests (RDTs) have become critical in the
management of malaria, but current RDTs that detect P.
falciparum are primarily antibody-based, which can have
drawbacks in cost and robustness. Here, we report the
development of an electrochemical aptamer-based (E-AB)
biosensing alternative. Through selective evolution of
ligands by exponential enrichment, we identify DNA aptamers
that bind specifically to P. falciparum histidine-rich
protein II (PfHRP2). The aptamer is modified with a
methylene blue reporter and attached to a gold sensor
surface for square-wave voltammetry interrogation. Through
this method we are able to quantify PfHRP2 in human serum
with an LOD of 3.73 nM. We further demonstrate the biosensor
is stable in serum buffers and reusable for multiple
detection rounds. These findings provide a promising
alternative to conventional PfHRP2 detection for malaria
diagnosis, while also expanding the capabilities of E-AB
biosensors.},
cin = {IBI-3},
ddc = {610},
cid = {I:(DE-Juel1)IBI-3-20200312},
pnm = {5241 - Molecular Information Processing in Cellular Systems
(POF4-524)},
pid = {G:(DE-HGF)POF4-5241},
typ = {PUB:(DE-HGF)16},
pubmed = {34271397},
UT = {WOS:000704056300009},
doi = {10.1016/j.bios.2021.113472},
url = {https://juser.fz-juelich.de/record/904351},
}