In this study, we theorize that the way consumers communicate on social media (“liking”2 vs. posting) leads to consequential preferences for luxury products. Specifically, for light users, who spend less than one hour on social media, “liking” (vs. posting) strengthens (vs. weakens) preference for social value-framed luxury products (i.e., creates a good impression to others) compared to functional value-framed products (i.e., superior quality). This contrasts with heavy users, who spend more than two hours on social media, where posting (vs. “liking”) strengthens (vs. weakens) preference for social value-framed luxury products compared to functional value-framed products. Thus, the relationship between social media interaction (“liking” vs. posting) and preference for luxury products is conditionally mediated by communication expectation with others. Both the direct effect and indirect effect are moderated by the time spent on social media and luxury value type.

The various sintered samples comprising of 72 wt%(Al2O3) : 28 wt%(SiO2) based ceramics were fabricated using a colloidal processing route. The phase analysis of the ceramics was performed using an X-ray diffractometer (XRD) at room temperature confirming the presence of Al2O5Si and Al5.33Si0.67O9.33. The surface morphology of the fracture surface of the different sintered samples having different sizes of grain distribution. The resistive and capacitive properties of the three different sintered samples at frequency sweep (1 kHz to 1 MHz). The contribution of grain and the non-Debye relaxation process is seen for various sintered samples in the Nyquist plot. The ferroelectric loop of the various sintered sample shows a slim shape giving rise to low remnant polarization. The excitation performance of the sample at a constant electric signal has been examined utilizing a designed electrical circuit. The above result suggests that the prepared lead-free ceramic can act as a base for designing of dielectric capacitors or resonators.

Graphene nanoribbons materialize as a next-generation carrier for development of nanodimensional diagnostic devices and drug delivery systems due to the unique and cutting-edge electronic, thermal, mechanical and optical properties associated with graphene. This review article focuses on the important applications of GNRs in the field of biomedicine and biosensing. Graphene nanoribbons are highly developed form of graphene with a wide importance due to their distinctive properties such as large surface area, enhanced mechanical strength and improved electro-conductivity. GNRs are effective substitutes for conventional silicon-based transistors used in biochemical reactions and exploited in the fields of biomedicine and diagnostics due to their effective uptake by mammalian cells. The cellular interactions of GNRs consist of highly specific receptormediated transport, phagocytosis and non-specific transport systems involving copious forces of adhesion. The presence of quantum chains in GNRs increases their potential for fabrication of technically challenging sensing devices in the future.