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Review

Gold nanoparticles and hepatitis B virus

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Pages 455-461 | Received 26 Oct 2018, Accepted 01 Nov 2018, Published online: 06 Mar 2019

Figures & data

Table 1. Application of various biosensor techniques in detecting HBV.

Table 2. Showing several applications of gold nanoparticles as biosensors to detecting other pathogens.

Table 3. Showing various applications of AuNRs as a DNA biosensors.

Figure 1. Gold nanoparticle-based assay to detect hepatitis C virus RNA. In hepatitis C virus (HCV)-positive specimens, the fluorophore-labeled probe hybridizes to the target HCV RNA and fluorescence is be detected. In addition, the color of the solution will change from red to blue, owing to the aggregation of AuNPs (a qualitative colorimetric signal indicating the presence of HCV RNA). AuNP: Gold nanoparticle; NSET: Nanoparticle surface-energy transfer. This image adapted from Griffin et al. [Citation26] with copyright permission.

Figure 1. Gold nanoparticle-based assay to detect hepatitis C virus RNA. In hepatitis C virus (HCV)-positive specimens, the fluorophore-labeled probe hybridizes to the target HCV RNA and fluorescence is be detected. In addition, the color of the solution will change from red to blue, owing to the aggregation of AuNPs (a qualitative colorimetric signal indicating the presence of HCV RNA). AuNP: Gold nanoparticle; NSET: Nanoparticle surface-energy transfer. This image adapted from Griffin et al. [Citation26] with copyright permission.

Figure 2. Showing pictorial representation of the synthesis of antibody-functionalized GNRs and the detection mechanism for the biosensor immunoassay in capturing targets in different matrixes. This image adapted from Wang et al. [Citation29] with copyright permission.

Figure 2. Showing pictorial representation of the synthesis of antibody-functionalized GNRs and the detection mechanism for the biosensor immunoassay in capturing targets in different matrixes. This image adapted from Wang et al. [Citation29] with copyright permission.

Figure 3. Showing TEM images of the synthesized AuNRs and TEM images of FAM-ssDNA–CTAB–AuNRs conjugates before (A) and after hybridization with cDNA (B) at 37 °C. The color of FAM-ssDNA–CTAB–AuNRs conjugates changes from red to light purple (C). Red denotes the color of ternary complexes and light purple denotes the color after hybridization with target DNA. This image adapted from Lu et al. [Citation11] with copyright permission.

Figure 3. Showing TEM images of the synthesized AuNRs and TEM images of FAM-ssDNA–CTAB–AuNRs conjugates before (A) and after hybridization with cDNA (B) at 37 °C. The color of FAM-ssDNA–CTAB–AuNRs conjugates changes from red to light purple (C). Red denotes the color of ternary complexes and light purple denotes the color after hybridization with target DNA. This image adapted from Lu et al. [Citation11] with copyright permission.

Figure 4. Showing step-by-step preparation of the immune sensor using AuNP. This image adapted from Qiu et al. [Citation37] with copyright permission.

Figure 4. Showing step-by-step preparation of the immune sensor using AuNP. This image adapted from Qiu et al. [Citation37] with copyright permission.

Figure 5. Showing DPV curves of the immunosensor after incubating with various concentrations of HBsAg in 0.1 M pH 5.5 acetate buffer solution. This image adapted from Qiu et al. [Citation37] with copyright permission.

Figure 5. Showing DPV curves of the immunosensor after incubating with various concentrations of HBsAg in 0.1 M pH 5.5 acetate buffer solution. This image adapted from Qiu et al. [Citation37] with copyright permission.