Recently, a paper
published by Jie Hu from BEBC was selected in the 100 International Influential
Research Papers from China. The paper entitled "Advances in paper-based
point-of-care diagnostics" was published on Biosensors & Bioelectronics,
2014, 54, 585-597.
Abstract
Advanced diagnostic
technologies, such as polymerase chain reaction (PCR) and enzyme-linked
immunosorbent assay (ELISA), have been widely used in well-equipped
laboratories. However, they are not affordable or accessible in resource-limited
settings due to the lack of basic infrastructure and/or trained operators.
Paper-based diagnostic technologies are affordable, user-friendly, rapid,
robust, and scalable for manufacturing, thus holding great potential to deliver
point-of-care (POC) diagnostics to resource-limited settings. In this review, we
present the working principles and reaction mechanism of paper-based
diagnostics, including dipstick assays, lateral flow assays (LFAs), and
microfluidic paperbased analytical devices (μPADs), as well as the selection of
substrates and fabrication methods. Further, we report the advances in improving
detection sensitivity, quantification readout, procedure simplification and
multi-functionalization of paper-based diagnostics, and discuss the
disadvantages of paperbased diagnostics. We envision that miniaturized and
integrated paper-based diagnostic devices with the sample-in-answer-out
capability will meet the diverse requirements for diagnosis and treatment
monitoring at the POC.