Advances and challenges in small‐molecule DNA aptamer isolation, characterization, and sensor development

H Yu, O Alkhamis, J Canoura, Y Liu… - Angewandte Chemie …, 2021 - Wiley Online Library
Aptamers are short oligonucleotides isolated in vitro from randomized libraries that can bind
to specific molecules with high affinity, and offer a number of advantages relative to …

Nonspecific binding—fundamental concepts and consequences for biosensing applications

A Frutiger, A Tanno, S Hwu, RF Tiefenauer… - Chemical …, 2021 - ACS Publications
Nature achieves differentiation of specific and nonspecific binding in molecular interactions
through precise control of biomolecules in space and time. Artificial systems such as …

Wearable aptamer-field-effect transistor sensing system for noninvasive cortisol monitoring

B Wang, C Zhao, Z Wang, KA Yang, X Cheng, W Liu… - Science …, 2022 - science.org
Wearable technologies for personalized monitoring require sensors that track biomarkers
often present at low levels. Cortisol—a key stress biomarker—is present in sweat at low …

Strategies to manipulate the performance of aptamers in SELEX, post-SELEX and microenvironment

S Qi, N Duan, IM Khan, X Dong, Y Zhang, S Wu… - Biotechnology …, 2022 - Elsevier
Aptamers are short single-stranded DNA or RNA oligonucleotides isolated from randomized
libraries, presenting high affinity and specificity toward targets with similar to antibodies …

Simultaneous Detection of L‐Lactate and D‐Glucose Using DNA Aptamers in Human Blood Serum

PJJ Huang, J Liu - Angewandte Chemie International Edition, 2023 - Wiley Online Library
L‐lactate is a key metabolite indicative of physiological states, glycolysis pathways, and
various diseases such as sepsis, heart attack, lactate acidosis, and cancer. Detection of …

Label-free and dye-free fluorescent sensing of tetracyclines using a capture-selected DNA aptamer

Y Zhao, S Ong, Y Chen, PJ Jimmy Huang… - Analytical …, 2022 - ACS Publications
Tetracyclines are a group of important antibiotics with a common four-ring scaffold. While
most tetracyclines are currently used only in animals, their leaching into the environment …

Electrochemical sensors for cortisol detection: Principles, designs, fabrication, and characterisation

G Karuppaiah, MH Lee, S Bhansali… - Biosensors and …, 2023 - Elsevier
Psychological stress is a major factor contributing to health discrepancies among
individuals. Sustained exposure to stress triggers signalling pathways in the brain, which …

Aptamer-based lateral flow biosensor for rapid detection of salivary cortisol

S Dalirirad, D Han, AJ Steckl - ACS omega, 2020 - ACS Publications
We have developed a disposable point-of-care (POC) aptamer-based biosensor for the
detection of salivary cortisol. Nonstressful and noninvasive sampling of saliva compared to …

Innovative engineering and sensing strategies for aptamer-based small-molecule detection

O Alkhamis, J Canoura, H Yu, Y Liu, Y Xiao - TrAC Trends in Analytical …, 2019 - Elsevier
Aptamers are nucleic acid-based affinity reagents that have gained widespread attention as
biorecognition elements for the detection of targets such as ions, small molecules, and …

Systematic Study of in Vitro Selection Stringency Reveals How To Enrich High-Affinity Aptamers

O Alkhamis, Y Xiao - Journal of the American Chemical Society, 2022 - ACS Publications
Aptamers are oligonucleotide receptors with great potential for sensing and therapeutic
applications. They are isolated from random libraries through an in vitro method termed …