Highly-sensitive and label-free indium phosphide biosensor for early phytopathogen diagnosis

The Current Status and Future Outlook of Quantum Dot-Based Biosensors for Plant Virus Detection

“…Citrus tristeza virus (CTV) was the most extensively researched. The sensor, labeled with a CTV coat protein-derived antibody on the CdTe quantum dot, is a representative example ( Safarnejad et al, 2017 ; Shojaei et al, 2016b ; Moreau et al, 2012 ). In fact, using antibody derived from CTV coat protein, alternative types of biosensors were reported to enhance the specificity and sensitivity of fluorescence resonance energy transfer (FRET)-based biosensor.…”

Recent Trends in Field-Effect Transistors-Based Immunosensors

“…Table 2 also depicts the application of immunoFET devices for detecting environmental contaminants such as pesticides [74], herbicides [75], toxins [76], and phytopathogens [77]. Alzheimer biomarker, amyloid-β SWCNT 10 −12 -10 −9 g·mL −1 1 pg·mL −1 in human serum [63] Chondroitin sulfate proteoglycan 4, multiple cancer types biomarker Graphene 0.01 fM-10 pM 0.01 fM [85] Pancreatic cancer biomarker, carbohydrate antigen 19-9 (CA 19-9) Graphene 0.01 unit·mL −1 -1000 unit·mL −1 0.01 unit·mL −1 [56] Prostate specific antigen/α1-antichymotrypsin (PSA-ACT) complex Graphene 100 fg·mL −1 -1 µg·mL −1 100 fg·mL −1 [49] Breast cancer biomarkers human epidermal growth factor receptor 2 (HER2) and epidermal growth factor receptor (EGFR) SiO 2 /graphene 100 pM-1 µM 1 pM for HER2 and 100 pM for EGFR [52] Human immunodeficiency virus (HIV) 2,4-Dichlorophenoxyacetic acid herbicides SWCNT 5 fM-500 µM 500 fM in soil sample and 50 pM in buffer [75] 2,4,6-Trinitrotoluene (TNT) contamination SWCNT 0.5 ppb-5000 ppb 0.5 ppb [76] Microcystin-LR (cyanotoxin in surface waters) SWCNT 1-1000 ng·L −1 0.6 ng·L −1 [91] Citrus tristeza virus and Xylella fastidiosa phytopathogens InP 60-340 ng·mL −1 for Citrus tristeza virus and 34-250 ng·mL −1 for Xylella fastidiosa 2 nM for both phytopathogens [77] 3.1. Silicon Nanowires…”

“…Citrus tristeza virus and Xylella fastidiosa bacterium were detected by a FET biosensor using n-type indium phosphide (InP) as a biosensing platform [77]. InP substrate was aminated and PEGylated prior to the antibodies immobilization.…”

High performance indium oxide nanoribbon FETs: mitigating devices signal variation from batch fabrication

“…Nanostructured FET based sensors have attracted extensive attention in chemical and biological sensing because of their direct signal transduction, exquisite sensitivity, and point-ofcare integration capability. [1][2][3][4] Preferred materials for nano FET sensors construction include silicon (Si), [5][6][7][8] oxide semiconductors, [9][10][11][12] III-V materials, [13][14][15] and carbon based materials. [16][17][18] While Si-based nanoFETs (e.g.…”