A gold nanoparticle-intercalated mesoporous silica-based nanozyme for the selective colorimetric detection of dopamine

Abstract

A AuNP nanoparticle-incorporated mesoporous silica-based nanozyme exhibited the peroxidase-like activity and was utilized for the selective colorimetric detection of dopamine.

Delineating the Role of Tailored Gold Nanostructures at the Biointerface

“…Authors have used AuNPs grown on the walls of mesoporous silica having short bent rodlike structures 1 μm in length. During the colorimetric detection of dopamine, the intensity of oxidized TMB decreases in the presence of dopamine . This method exhibited an LOD of 1.28 nM.…”

Recent Advances in Nanozymes: From Matters to Bioapplications

“…[ 222 ] Biswas et al applied the Au nanoparticle‐intercalated mesoporous silica‐based nanozyme for the selective colorimetric detection of dopamine with the relatively large linear range and the low limit of detection. [ 223 ] Detection of biomarkers is important for clinical diagnosis, and utilization of nanozymes to detection of biomarkers have been reported. Xia et al used the Au vesicles encapsulated with Pd‐Ir nanozyme to ultrasensitive colorimetric assay of disease biomarkers.…”

“…It achieves synergetic anti-oxidative efficacy to protect cellular components against harmful oxidative damage. [197] Recently, we are manufacturing a highly integrated manganese dioxide encapsulated selenium-melanin (Se@Me@MnO 2 ) nanozyme to Anti-oxidant Ceria nanoparticles SOD/CAT Protect against ischemic stroke [191] Ceria nanoparticles SOD Acquired SOD-scavenging ability [192] Fluoride-capped nanoceria Oxidase Highly oxidase-mimicking efficient [193] Nanoceria DNase I As DNase I like enzyme for cleaving of single-stranded DNA oligonucleotides [194] Prussian blue nanoparticle POD/CAT/SOD Multienzyme mimetics for scavenging of ROS [195] V 2 O 5 @pDA@MnO 2 GPx/SOD/CAT Multi-nanozymes to mimic intracellular anti-oxidant defense system [196] Se@pDA GPx Biomimetic anti-oxidant machinery [197] Se@Me@MnO 2 GPx/SOD/CAT Multienzyme mimetics for efficient intracellular anti-oxidation [198] Disease treatment Ec-pE@MNP SOD Fenton-like bioreactor for tumor therapy [205] DMSN-Au-Fe 3 O 4 GOx/POD Paves a way for nanocatalytic tumor therapy [206] HMON-Au@Cu-TA GOx Enhancing ROS-mediated anti-tumor efficacy [207] GOD-Fe 3 O 4 @DMSNs GOD Catalytic nanomedicine by approaching selectivity and efficiency concurrently for tumor therapeutics [208] Ce6@MnO 2 -PEG POD Modulation of hypoxia and enhance PDT [209] PtFe@Fe 3 O 4 POD/CAT Dual enzyme-like activities for deep pancreatic cancer therapy [210] Polydopamine nanoparticles POD/SOD Efficient scavengers for ROS in periodontal disease [211] Anti-bacterial MoS 2 -hydrogel POD Improve the anti-bacterial performance of nanozymes [217] PCN-224-Ag-HA POD Surface-adaptive, on-demand nanoplatform for synergistic bacteria killing, and wound disinfection [218] RCMs POD Defect-rich adhesive and efficient for bacterial inhibition [219] Sensing 3D GH-5 POD Enhanced nanozyme activity for glucose detection [221] Pt, Ru, and Ir nanoparticles POD Detecting versatile analytes from small molecules to proteins and cells [222] AuMS POD Selective colorimetric detection of dopamine [223] Pd-Ir NPs@GVs POD Ultrasensitive colorimetric assay of disease biomarkers [224] CeO 2 nanoparticles Phosphatase Highly sensitive chemiluminescent sensing of intracellular Al 3+ [228] Imaging AMP NRs POD For intelligent, accurate, and noninvasive cancer therano...…”

Construct of Carbon Nanotube-Supported Fe2O3 Hybrid Nanozyme by Atomic Layer Deposition for Highly Efficient Dopamine Sensing

“…As depicted in Figure 3C, the specific activity determined according to the protocol of Yan's group (Jiang et al, 2018) shows that the absorbance is linear to reaction time in the first minutes. By choosing 80 s as the initial (Dutta et al, 2015;Ivanova et al, 2019;Zhu et al, 2019;Ray et al, 2020).…”