期刊
BIOSENSORS & BIOELECTRONICS
卷 145, 期 -, 页码 -出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2019.111678
关键词
ISFET; CMOS; Lab-on-Chip; Point-of-Care; Malaria; P. falciparum; SNP; LAMP
类别
资金
- EPSRC HiPEDS Centre for Doctoral Training [EP/L016796/1]
- Imperial Confidence in Concepts - Joint Translational Fund [PS3111EESA]
- EPSRC Pathways to Impact [PSE394EESA]
- EPSRC Global Challenge Research Fund [EP/P510798/1]
- Wellcome Investigator Award [100993/Z/13/Z]
- Medical Research Council (MRC) [MR/N012275/1]
- MRC [MC_PC_16046, MR/N012275/1] Funding Source: UKRI
- Wellcome Trust [100993/Z/13/Z] Funding Source: Wellcome Trust
Early and accurate diagnosis of malaria and drug-resistance is essential to effective disease management. Available rapid malaria diagnostic tests present limitations in analytical sensitivity, drug-resistance testing and/or quantification. Conversely, diagnostic methods based on nucleic acid amplification stepped forwards owing to their high sensitivity, specificity and robustness. Nevertheless, these methods commonly rely on optical measurements and complex instrumentation which limit their applicability in resource-poor, point-of-care settings. This paper reports the specific, quantitative and fully-electronic detection of Plasmodium falciparum, the predominant malaria-causing parasite worldwide, using a Lab-on-Chip platform developed in-house. Furthermore, we demonstrate on-chip detection of C580Y, the most prevalent single-nucleotide polymorphism associated to artemisinin-resistant malaria. Real-time non-optical DNA sensing is facilitated using Ion-Sensitive Field-Effect Transistors, fabricated in unmodified complementary metal-oxide-semiconductor (CMOS) technology, coupled with loop-mediated isothermal amplification. This work holds significant potential for the development of a fully portable and quantitative malaria diagnostic that can be used as a rapid point-of-care test.
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