Fast synthesis of hierarchical cuprous oxide for nonenzymatic glucose biosensors with enhanced sensitivity

Glucose-Fueled Micromotors with Highly Efficient Visible-Light Photocatalytic Propulsion

“…Photocatalytic decomposition of glucose is an important and efficient approach, which has been widely used in various glucose-related research studies, including biosensors, 25 hydrogen evolution, 26 and self-monitoring of blood glucose. 27 In light of this, we propose using photocatalytic reactions instead of enzyme-catalytic reactions to decompose glucose and further convert the chemical energy of glucose to mechanical energy of micro/nanomotors.…”

Experimental Revelation of Surface and Bulk Lattices in Faceted Cu2O Crystals

“…These assignments are partially in agreement with those of the previous work. [ 42–44 ] While octahedra give a similar Raman profile, the T 2g mode has shifted to 510 cm −1 . Similar spectrum was collected for cuboctahedra, but the weak 414 and 510/520 cm −1 peaks are less identifiable.…”

Enhanced Label-Free Nanoplasmonic Cytokine Detection in SARS-CoV-2 Induced Inflammation Using Rationally Designed Peptide Aptamer

“…In contrast, label-free biosensing circumvents the need for secondary tagging by providing direct physical signals upon target binding, rendering them a consolidated approach for high-speed diagnosis. 11 − 13 Among the various transduction mechanisms of optical, 14 , 15 electrical, 16 , 17 and mechanical 18 , 19 sensors, nanoplasmonic biosensors have shown great promise in the compact, simple, and rapid detection of protein biomarkers. 20 − 23 By utilizing the localized surface plasmon resonance (LSPR), nanoplasmonic biosensing allows remote transduction of biomolecular binding in a highly localized environment (∼20–60 nm) around the plasmonic nanoparticle (NP) surface, 20 , 24 presenting excellent sensing performance to detect small target analytes such as cytokines.…”

“…However, accurate and real-time detection of cytokines remains challenging, because of their low trace amount, highly dynamic secretion, and short half-lives. , The commonly used enzyme-linked immunosorbent assay (ELISA) requires labor-intensive sample handling, labeling, and washing processes, falling short of meeting the urgent demands for sensitive, dynamic cytokine monitoring. In contrast, label-free biosensing circumvents the need for secondary tagging by providing direct physical signals upon target binding, rendering them a consolidated approach for high-speed diagnosis. − Among the various transduction mechanisms of optical, , electrical, , and mechanical , sensors, nanoplasmonic biosensors have shown great promise in the compact, simple, and rapid detection of protein biomarkers. − By utilizing the localized surface plasmon resonance (LSPR), nanoplasmonic biosensing allows remote transduction of biomolecular binding in a highly localized environment (∼20–60 nm) around the plasmonic nanoparticle (NP) surface, , presenting excellent sensing performance to detect small target analytes such as cytokines. Despite the great potential, the limit of detection (LOD) of label-free LSPR immunoassay is reaching its theoretical limit of ∼10 pg/mL due to fundamental constraints in the quality (Q)-factor and sensing volume of the plasmonic NPs, and the binding affinity and mass ratio of the antibody–antigen pairs .…”