Unique Classification of Stimuli through Color Metric Responses of a Matrix of Polydiacetylenes
Abstract not provided.
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Jump to search filtersPolydiacetylene Sensor Arrays as Multimodal Tamper Indicators
Abstract not provided.
A Suite of Polydiacetylenes for Comprehensive Tamper Indication
Abstract not provided.
Hierarchical Self-Assembly of Carbon Dots into High-Aspect-Ratio Nanowires
Nano Letters
We report a spontaneous and hierarchical self-assembly mechanism of carbon dots prepared from citric acid and urea into nanowire structures with large aspect ratios (>50). Scattering-type scanning near-field optical microscopy (s-SNOM) with broadly tunable mid-IR excitation was used to interrogate details of the self-assembly process by generating nanoscopic chemical maps of local wire morphology and composition. s-SNOM images capture the evolution of wire formation and the complex interplay between different chemical constituents directing assembly over the nano- to microscopic length scales. We propose that residual citrate promotes tautomerization of melamine surface functionalities to produce supramolecular shape synthons comprised of melamine-cyanurate adducts capable of forming long-range and highly directional hydrogen-bonding networks. This intrinsic, heterogeneity-driven self-assembly mechanism reflects synergistic combinations of high chemical specificity and long-range cooperativity that may be harnessed to reproducibly fabricate functional structures on arbitrary surfaces.
New Molecular Recognition-Based Nanoscale Sensor Platforms for Trace-Level Threat Detection
Abstract not provided.
New Molecular Recognition-Based Nanoscale Sensor Platforms for Trace-Level Threat Detection
Abstract not provided.
Puck Passive Loop Seal
Abstract not provided.
Puck Passive Loop Seal
Abstract not provided.
Polydiacetylene Sensor Arrays as Multimodal Tamper Indicators
Abstract not provided.
Polydiacetylene Sensor Arrays as Multimodal Tamper Indicators
Abstract not provided.
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