Hybrid Structures for Surface‐Enhanced Raman Scattering: DNA Origami/Gold Nanoparticle Dimer/Graphene

A combination of three innovative materials within one hybrid structure to explore the synergistic interaction of their individual properties is presented. The unique electronic, mechanical, and thermal properties of graphene are combined with the plasmonic properties of gold nanoparticle (AuNP) dimers, which are assembled using DNA origami nanostructures. This novel hybrid structure is characterized by means of correlated atomic force microscopy and surface‐enhanced Raman scattering (SERS). It is demonstrated that strong interactions between graphene and AuNPs result in superior SERS performance of the hybrid structure compared to their individual components. This is particularly evident in efficient fluorescence quenching, reduced background, and a decrease of the photobleaching rate up to one order of magnitude. The versatility of DNA origami structures to serve as interface for complex and precise arrangements of nanoparticles and other functional entities provides the basis to further exploit the potential of the here presented DNA origami–AuNP dimer–graphene hybrid structures.     

To Change or Not To Change: How Regulatory Focus Affects Change in Dyadic Decision‐Making

Successful innovation requires teams to embrace and enact change. However, team members often differ in their preferences for change. We examine how regulatory focus affects dyadic teams’ tendencies to enact change across an array of repeated brand management decisions. Understanding such tendencies is important, since the innovation process is characterized by a series of investment decisions typically made by teams, yet prone to significant biases. Regulatory focus theory provides a framework for understanding the dominant motivations driving decision‐making during goal pursuit. It argues that individuals operate under either a promotion or prevention focus, influencing preferences for stability vs. change. We develop a set of hypotheses regarding regulatory focus match vs. mismatch in teams and their effects on the relative tendency to enact change in decision‐making. In the context of dyads involved in a complex management simulation consisting of multiple decision cycles, we empirically demonstrate that a promotion focus match is associated with greater levels of change in decisions than a prevention focus match, regardless of the type of goal pursuit strategy prescribed to dyads. Under regulatory focus mismatch, however, dyads are guided by the goal pursuit strategy (vigilant vs. eager) provided to them, which in turn informs their propensity to implement change.

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Determinization of fuzzy automata with membership values in complete residuated lattices

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Polycyclic aromatic hydrocarbons in traditionally smoked Slavonska kobasica

ABSTRACT

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