Rapid Multiplexed Detection on Lateral-Flow Devices Using a Laser Direct-Write Technique

Biosensors

PeijunJ. W. He¹  IoannisN. Katis¹  RobertW. Eason¹  CollinL. Sones¹ 

[1] Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK;

关键词: lateral-flow device;    multiplexed detection;    laser direct-write;    biosensors;    inflammation detection;   

DOI  :  10.3390/bios8040097

来源: DOAJ

【 摘 要 】

Paper-based lateral flow devices (LFDs) are regarded as ideal low-cost diagnostic solutions for point-of-care (POC) scenarios that allow rapid detection of a single analyte within a fluidic sample, and have been in common use for a decade. In recent years, there has been an increasing need for rapid and simultaneous detection of multiple analytes present within a single sample and to facilitate this, we report here a novel solution—detection using a multi-path LFD created via the precise partitioning of the single flow-path of a standard LFD using our previously reported laser direct-write (LDW) technique. The multiple flow-paths allow the simultaneous detection of the different analytes individually within each of the parallel channels without any cross-reactivity. The appearance of coloured test lines in individual channels indicates the presence of the different analytes within a sample. We successfully present the use of a LDW-patterned multi-path LFD for multiplexed detection of a biomarker panel comprising C-reactive protein (CRP) and Serum amyloid A-1 (SAA1), used for the diagnosis of bacterial infections. Overall, we demonstrate the use of our LDW technique in the creation of a novel LFD that enables multiplexed detection of two inflammation markers within a single LFD providing a detection protocol that is comparatively more efficient than the standard sequential multiplexing procedure.

【 授权许可】

Unknown