Fig. 1. Schematic diagram of virus detection based on SERS technology
Fig. 2. SERS sensors and platforms are designed in a variety of diverse ways for label-free detection of SARS-CoV-2. (a) Schematic diagram of the design and operation process of the COVID-19 SERS sensor
[36]; (b) flexible substrate combined with SERS metal-insulator-metal nanostructures and machine learning-based label-free detection platform
[42]; (c) schematic diagram of SnS
2 microsphere substrates design
[44]; (d) Raman enhancement mechanism of Cu
2O nanoarray with significant enhancement factor
[45] Fig. 3. Machine learning techniques are applied to SARS-CoV-2 label-free detection. (a) Identification of pure S protein standard samples by SERS spectroscopy using PCA
[47]; (b) SERS biosensors are engineered with 3D porous Ag nanoparticle-based microplasma-engineered nanoassemblies (denoted as AgMEN) deposited on cellulose paper (left) and functionalized with antibodies (AgMEN@Ab)(center part) to detect the corresponding antigens by analyzing the SERS response (right)
[48] Fig. 4. Application of SERS nanoprobes in label detection and differentiation of SARS-CoV-2. (a) Schematic of the SERS assay based on one-step aptamer recognition for rapid point-of-care detection of SARS-CoV-2 virus within 5 min
[51]; (b) stepwise reactions of RBD probe for SARS-CoV-2 capture and detection with SERS nanotags, for virus and variant identification based on the average Raman spectrum results
[54] Fig. 5. Application of SERS label detection method for the detection of RNA and proteins from SARS-CoV-2 virus lysates.(a) Schematic illustrations of the preparation of SERS tags and the signal amplification strategy for SERS detection of SARS-CoV-2 RNA
[55]; (b) preparation of Au@4MBN@Ag NPs and fabrication of two-dimensional SERS sensing chip for SARS-CoV-2 RNA detection
[56]; (c) schematic illustration of the quantitative evaluation of SARS-CoV-2 using the SERS-based aptasensor
[57] Fig. 6. Multi-mode virus detection scheme incorporating SERS technology. (a) Schematic of the triple-mode biosensors for COVID-19 virus RNA detection
[59]; (b) PCR amplification process for bridge DNAs and SERS detections for bridge DNAs
[60] Fig. 7. SERS labeling method applied to the detection of influenza A virus. (a) Schematic diagram of using SERS assisted with pre-filtering to sensitively detect influenza A virus
[64]; (b)schematic of the IMBSIs@Ag-SERS method for H5N1 influenza virus detection
[65] Fig. 8. SERS labeling method applied to the detection and differentiation of multiple respiratory viruses. (a) Working principle of dual aptamer-immobilized Au nanopopcorn substrate for virus assays
[69]; (b) collection of throat swab sample and operating procedure for the simultaneous quantitative detection of three respiratory viruses via the Fe
3O
4@Au-based SERS LFA strip
[70] Fig. 9. SERS technology applied to the detection of human immunodeficiency virus (HIV-1) and norovirus (NoV). (a) Schematic diagram demonstrating rapid handheld SERS platform for HIV detection
[73]; (b) the stepwise dual-modality NoV detection
[77] Fig. 10. SERS technology applied to the detection of dengue virus (DENV). (a) Schematic of platform for DENV2 NS1 detection in a single infected mosquito sample with the integration of nanoyeast scFvs affinity probes and nanobox-based SERS nanotags
[83]; (b) schematic illustration of SERS assay of DENV gene via a cascade enzyme-free signal amplification strategy of LCHA and HCR
[84] Fig. 11. SERS technology used for the detection of DNA viruses such as hepatitis B virus(HBV) and monkeypox virus(MPXV).(a) Schematic illustration showing the integration of a microfluidic device with the SERS-active substrate based on Au-Ag coated GaN surface
[92]; (b) schematic diagram of CRISPR/Cas12a-SERS principle analysis
[93]; (c) the principle of MPXV detection by colorimetric-SERS dual-mode ICA
[97] Fig. 12. CRISPR/Cas-SERS platform applied to the detection of viral genetic material. (a) Schematic diagram of the gene detection by using the CRISPR/dCas9-based SERS method, assisted with HRP-Catalyzed signal amplification
[111]; (b) schematic diagram of the proposed CRISPR/Cas12a-SERS platform for amplification-free ASFV dsDNA detection
[112] Fig. 13. Portable Raman spectrometer devices applied to SERS virus detection schemes. (a) Schematic illustration of SERS based immunoassay platform(with a portable Raman spectrometer)
[115]; (b) schematic diagram of the detection of influenza A virus H1N1 by SERS and gold electrodeposition nanostructure
[116]; (c) schematic diagram of a SERS detection method based on one-step aptamer identification using a portable Raman spectrometer for rapid and point-of-care detection of SARS-CoV-2 virus in less than 5 minutes
[51] Label method | Type of virus | Virus species | SERS platform | Target | Dynamic range | Methods used | Sample solution | Time | LoD | Reference |
---|
Label free | RNA virus | SARS-CoV-2 | gold-nanoneedles array | S-protein | | PCA & DA | saliva urines | 5 min | 80 copies/mL | [36] | Label free | RNA virus | SARS-CoV-2 | SERS-active surfaces | S-protein | | | PBS | | <1 pg/mL | [39] | Label free | RNA virus | SARS-CoV-2 | Au nanoplate film/MgF2/Au mirror/glass | S-protein | 1.25×10-6‒4.7×10-3 g/mL | VTM, PCA PLS-DA | saliva | | 2.8× 10-11 g/mL | [40] | Label free | RNA virus | SARS-CoV-2 Omicron | Ag platform | ssRNA | | | PBS | | | [41] | Label free | RNA virus | SARS-CoV-2 influenza A H1N1 | metal-insulator-metal nanostructures | S protein HA protein | | PCA random forest algorithm | saliva | 25 min | 103 copies/mL | [42] | Label free | RNA virus | SARS-CoV-2 | GAgNPs paper sensor | S-protein | | | saliva | 2 min | 2.4 pg/µL | [43] | Label free | RNA virus | SARS-CoV-2 | spherical SnS2 structure | S protein RNA | 10‒ 1010 copies/mL | PCA | saliva, stool, urine, blood, items | 5 min | 80 copies/mL | [44] | Label free | RNA virus | SARS-CoV-2 | Cu2O nanoarray | RNA | 100‒ 106 copies/mL | | respiratory swab RNA extracts | 5 min | 80 copies/mL | [45] | Label free | RNA virus | SARS-CoV-2 Beta,Delta,Wuhan, Omicron | Ag INPs | S protein | | PCA, logistic regression algorithm | saliva nasal swab | 15 min | | [47] | Label free | RNA virus | SARS-CoV-1 SARS-CoV-2 | Au nano-pyramids | single-particle | | LDA, HCA Modle training | saliva | 5 h | | [46] | Label free | RNA virus | SARS-CoV-2 wild-type, Alpha, Delta, Omicron | 3D porous AgMEN | S protein N protein | 1.0 fg/mL‒ 1 mg/mL 1.0 pg/mL‒ 1 mg/mL 1.0 pg/mL‒ 1 mg/mL | | saliva | | 1.0 fg/mL 1000 fg/mL 100 fg/mL | [48] | Label free | RNA virus | MERS-CoV SARS-CoV SARS-CoV-2 HCoVHKU1 HCoV-OC43 | Ag-coated Si substrates | S-protein | | MLP | PBS | | | [49] | 4-MBA | RNA virus | SARS-CoV-2 | Ag-LFA | N-protein | 10‒ 1000 ng/mL | | saliva | 15 min | 0.03 ng/mL | [50] | Nile BlueA | RNA virus | SARS-CoV-2 | Magnetic beads | viral particles | 250‒ 10000 TU/μL | | PBS, swab samples | 5 min | 124 TU/μL | [51] | GNPs | RNA virus | SARS-CoV-2 | magnetic nanoparticles | S-protein | 4.1×104 genomes/mL | | saliva | 30 min | 257 fg/mL | [52] | 4-MBA | RNA virus | SARS-CoV-2 | Au NPs | S-protein | 1 fg/mL‒ 1ng/mL 10 fg/mL ‒ 10 ng/mL | | PBS saliva serum blood | | 0.77 fg/mL 6.07 fg/mL 7.60 fg/mL 0.10 pg/mL | [53] | MMC DTNB TFMBA MBA | RNA virus | SARS-CoV-2 Delta,Omicron | Au-Ag nanobox-based SERS barcodes | S protein N protein | | | nasal swab | | 20 virus/μL or 50 pg/mL | [54] | DTNB | RNA virus | SARS-CoV-2 | Ag NRs | RNA | 102‒ 106 copies/mL | | PBS | 50 min | 51.38 copies/mL | [55] | 4-MBN | RNA virus | SARS-CoV-2 | Au@4MBN@Ag NPs | RNA | 10-6‒10-12M | | PBS | 10 min | 7.61× 10-14 mol | [56] | 4-MBA | RNA virus | SARS-CoVM-2 | Au nanopopcorn | S-protein | 0‒ 1000 PFU/mL | | PBS | 15 min | 10 PFU/mL | [57] | DTNB | RNA virus | SARS-CoV-2 | AuNP-rGO-SW | N-protein | 1 fmol‒ 100 amol | | PBS | | 1 fmol | [58] | Label free | RNA virus | SARS-CoV-2 | Au NPs | RNA | 160 fmol‒ 1 nmol | Colorimetric fluorescenc | PBS | 40 min | 395 fmol | [59] | MGITC | RNA virus | SARS-CoV-2 | Au NDs | RdRp genes | | SERS-PCR | PBS | | ‒ | [60] | Label free | RNA virus | Influenza A Influenza B | Ag NPs | viral particles | | SVM | PBS | | 0.05 µg/mL | [61] | Label free | RNA virus | Influenza A | Ag NPs | viral particles | 2×105‒2× 106 VP/mL | | PBS | 15 min | 2× 105 VP/mL | [62] | Label free | RNA virus | Influenza A | Ag NPs | viral particles | 103‒5×1010 virus Particles/mL | | PBS | | 103 particles/mL | [64] | Label free | RNA virus | Influenza A H5N1 | IMBSIs@Ag | viral particles | | | PBS | | 5.0×106 TCID50/mL | [65] | Cy3 | RNA virus | Influenza A | Ag NPs | viral particles | | | PBS | | 10 VP/mL or 2 VP/mL per probe | [66] | MGITC | RNA virus | Influenza A SARS-CoV-2 | Au NPs | N-protein | 0‒ 8064 HAU/mL 50‒ 1000 PFU/mL | | nasopharyngeal samples | | 23 HAU/mL 5.2 PFU/mL | [67] | Label free | RNA virus | Influenza A SARS-CoV-2 hCoV-229E | Gold particles | viral particles | | AI,RVM,PCA | PBS | | | [68] | Cy3 RRX 4-MBA | RNA virus | SARS-CoV-2 Influenza A | Au nanopopcorn substrate | S-Protein hemagglutinin | 0.32‒ 200 PFU/ml 0.13‒ 80.6 HAU/mL | | PBS | 15 min | 0.62 HAU/mL 0.78 PFU/mL | [69] | DTNB | RNA virus | influenzaA SARS-CoV-2 RSV | Fe3O4@Au core–shell MNPs | viral antigen | | | throat swab samples | 15 min | 85 copies/mL 8 pg/mL 8 pg/mL | [70] | 4-ATP | RNA virus | influenza A influenza B SARS-CoV-2 | Au4-ATP@Ag NPs | N-protein | | Photothermal effect | pharyngeal swab samples | <20 min | 31.25 pg/mL 93.75 pg/m: 31.25 pg/mL | [71] | Label free | RNA virus | HIV | Au NCs | HIV-1 DNA | | | Millipore water | | | [72] | Label free | RNA virus | HIV(A,B,C,D, CRF02_AG) | Ag nanorods | viral particles | 102‒ 106 copies/mL | PCA | plasma | | | [73] | Label free | RNA virus | HIV(A,B,C,D) | Au sputtered Ag nanorods | viral particles | | PCA | plasma | | | [74] | MoO3-QDs | RNA virus | HEV,NoV | nanogels (NGs) | viral particles | 102‒ 108 copies/mL | | PBS | | 6.5 fg/mL 8.2 fg/mL | [76] | S-agCDs | RNA virus | NoV | Poly(DOP)-MNPs-Ag NCs | viral particles | 1 fg/mL‒ 1 ng/mL | FL-SER | PBS | 5 min | 10 RNA copies /mL | [77] | Label free | RNA virus | HCV | Ag NPs | viral particles | | PLSR, RMSECV, R2 | serum | | | [79] | Label free | RNA virus | HCV | Ag NPs | RNA | | PLSR, PCA | serum | | | [80] | Label free | RNA virus | DENV-2 | NANOBOX | DENV2-NS1 | | | PBS | | | [83] | Label free | RNA virus | DENV | Ag NRs array | RNA | 1 fmol‒10 nmol | | serum | | 0.49 fmol | [84] | Label free | RNA virus | DENV | Au NPs | RNA | ‒ | | serum | | 1 pg/μL | [85] | Label free | RNA virus | Zika virus | Ag NIs | Zika antigen | 5‒1000 ng/mL | | PBS | | 0.11 ng/mL | [86] | Label free | RNA virus | WNV | Au@Ag NPs | WNV-NS1 inactivated WNV virions | | | PBS | | 0.1 ng/mL 0.2×102 copies/μL | [88] | Label free | RNA virus | EMCV influenza A | triangular Au nano-cavities array | virus particles | | | PBS | | 106 PFU/ mL 104 PFU/ mL | [106] | 4-MBA | RNA virus | SARS-CoV-2 | DVD | VLP protein S-Protein | 100 pg/mL‒1000 ng/mL | | PBS saliva | 20 min | 50 pg/mL 400 pg/mL | [115] | 4-ATP | RNA virus | SARS-CoV-2 | Au NPs | virus particle S-Protein | | | PBS | 5 min | 18 Vp/mL 4 pg/mL | [117] | 4-ATP | RNA virus | SARS-CoV-2 | SERS-CRISPR/ Cas12a | SARS-CoV-2 N gene | | | nasopharyngeal swab samples | 40 min | 1 fmol | [113] | 4-MBA | RNA virus | SARS-CoV-2 | CRISPR/Cas12a-OVER-SARS-CoV-2 | SARS-CoV-2 gene | | | nasopharyngeal swab samples | 45 min | 1.9 copies/mL | [109] | Cy3 | RNA virus | SARS-CoV-2 influenza A RSV | Si substrates | antigens | | | Nasal swabs | 17 min | | [95] | Label free | RNA virus DNA virus | SARS-CoV-2 influenza A | clustered silver nanoparticles | virus particle | | LDA | PBS saliva | | 10 PFU/test | [51] |
|
Table 1. Comparison table of RNA viral detection protocols
Label method | Type of virus | Virus species | SERS platform | Target | Dynamic range | Methods used | Sample solution | Time | LoD | Reference |
---|
FC | DNA virus | HBV | GaN/Au-Ag SERS substrate | HBsAg | 0.0125‒ 60 IU/ml | | plasma | | 0.01 IU/mL | [92] | 4-ATP | DNA virus | HBV | Au NPs@4-ATP | HBV DNA | 1 pmol‒ 1 nmol | PCA | serum | 50 min | 0.67 pM | [93] | Label free | DNA virus | HBV | Ag NPs | HBV DNA | | PCA, PLS-DA | Blood | | | [94] | Label free | DNA virus | MPXV | Ag@cit | M1R proteins | | PCA | serum | | 100 copies/mL | [96] | DTNB | DNA virus | MPXV | MoS2@Au-Au | MPXV antigens | 100‒ 0.01 ng/mL | colorimetry | throat swab specimens | <20 min | 0.002 ng/mL | [97] | Label free | DNA virus | EBV | | RBV Infection | | PCA, Mann-Whitney U test, IPA, IPKB | Glial Cells | | | [100] | R6G TMB | DNA virus | EBV | PS/Au NPs | EBV IgG | 10-1‒ 105 pg/mL | | blood | 10 min | 0.045 pg/mL | [101] | Label free | DNA virus | HSV-1,EBV | nanoparticles | antigens | | PCA | cell confluence | | | [103] | Label free | DNA virus | Adenovirus | triangular Au nano-cavities array | virus particles | | | PBS | | 106 PFU/mL | [106] | Cy3 | DNA virus | Adenovirus | Si substrates | antigens | | | Nasal swabs | 17 min | | [95] | Label free | DNA virus | Adenovirus 7 | clustered silver nanoparticles | virus particle | | LDA | PBS, saliva | | 10 PFU/test | [51] | MBN | DNA virus | HPV | CRISPR/Cas-SERS platform | HPV16/ 18 dsDNA | 6.72×10-12 mol‒6.72×10-7 mol | | serum | 40 min | | [110] | TMB | DNA virus | HPV | CRISPR/dCas9-SERS AuNC@SiO2 | HPV 16 pseudovirus genes | 30 ng‒190 ng | | H2O | | | [111] | 4-MBA | DNA virus | ASFV | CRISPR/Cas12a-SERS platform | ASFV dsDNA | 100 nmol‒10 fmol | | serum | 2 h | 10 fmol | [112] |
|
Table 2. Comparison table of DNA viral detection protocols