The Effect of Social EWOM on Consumers’ Behaviour Patterns in the Fashion Sector

The study described in this chapter aimed to enhance knowledge on the influence of electronic word of mouth (eWOM) on consumer’s decision-making processes. eWOM emerged as a key driver in consumers’ decision-making processes given its greater impact on purchasing decisions compared to other communication channels. Specifically, the study focused on the reviews of fashion products on social networks (SNs) and built on the stimulus-organism-response (S-O-R) model in order to identify the determinants of social eWOM adoption and intention to buy the reviewed product. The survey method was used to gather data from 230 Italian consumers. Structural equation modelling was used to estimate the model proposed. Results revealed that when consumers seek information on fashion products, the user-friendliness of SNs and social cues (homophily and normative social influence) positively impact social eWOM (opinion-seeking), which in turn influences the intention to purchase the reviewed products. The study contributes both theoretically and empirically to the understanding of the role of social eWOM in influencing consumer behaviour. At the theoretical level, it supports the adequacy of the S-O-R model for explaining the consumer decision-making process in the context of social eWOM. From a managerial perspective, the findings highlight the importance of taking into consideration both structural (accessibility) and social relationship variables while developing social media marketing strategies

Silver Nanoparticles: Review of Antiviral Properties, Mechanism of Action and Applications

New antiviral drugs and new preventive antiviral strategies are a target of intense scientific interest. Thanks to their peculiar properties, nanomaterials play an important role in this field, and, in particular, among metallic materials, silver nanoparticles were demonstrated to be effective against a wide range of viruses, in addition to having a strong antibacterial effect. Although the mechanism of antiviral action is not completely clarified, silver nanoparticles can directly act on viruses, and on their first steps of interaction with the host cell, depending on several factors, such as size, shape, functionalization and concentration. This review provides an overview of the antiviral properties of silver nanoparticles, along with their demonstrated mechanisms of action and factors mainly influencing their properties. In addition, the fields of potential application are analyzed, demonstrating the versatility of silver nanoparticles, which can be involved in several devices and applications, including biomedical applications, considering both human and animal health, environmental applications, such as air filtration and water treatment, and for food and textile industry purposes. For each application, the study level of the device is indicated, if it is either a laboratory study or a commercial product

Eu Ecolabel: il ruolo delle etichette ambientali nel processo decisionale di acquisto

The increasing attention of consumers towards the environmental impact of products has led companies and institutions to undertake several sustainability actions in various areas, from production to utilization through distribution. Among the tools used to inform consumers of the progress made and to promote the spread of eco-friendly products, environmental labels are the most prominent. This paper aims to enhance the knowledge on the topic by analyzing the influence of the Eu Ecolabel, the label of environmental excellence developed by the European Union for consumer products on the consumer decision making process. A mail survey with a sample of 204 Italian consumers was conducted. The structural equations model (Sem) results show that the level of information on environmental issues, the environmental concern and the perceived usefulness of the Eu Ecolabel positively impact the propensity to use it for the purpose of choosing products. On the contrary, the trust toward Ue does not exert a significant influence on the behavioral response. The study offers both theoretical and managerial implications on the importance of ecolabels in the purchasing decision-making process as well as on the role of supranational certification bodies

Nanoemulsion for improving solubility and permeability of Vitex agnus-castus extract: formulation and in vitro evaluation using PAMPA and Caco-2 approaches

The purpose of this study was to develop new formulation for an improved oral delivery of Vitex agnus-castus (VAC) extract. After the optimization and validation of analytical method for quali-quantitative characterization of extract, nanoemulsion (NE) was selected as lipid-based nanocarrier. The composition of extract-loaded NE resulted in triacetin as oil phase, labrasol as surfactant, cremophor EL as co-surfactant and water. NE contains until 60 mg/mL of extract. It was characterized by DLS and TEM analyses and its droplets appear dark with an average diameter of 11.82 ± 0.125 nm and a polydispersity index (PdI) of 0.117 ± 0.019. The aqueous solubility of the extract was improved about 10 times: the extract is completely soluble in the NE at the concentration of 60 mg/mL, while its solubility in water results less than 6 mg. The passive intestinal permeation was tested by using parallel artificial membrane permeation assay (PAMPA) and the permeation across Caco-2 cells after preliminary cytotoxicity studies were also evaluated. NE shows a good solubilizing effect of the constituents of the extract, compared with aqueous solution. The total amount of constituents permeated from NE to acceptor compartment is greater than that permeated from saturated aqueous solution. Caco-2 test confirmed PAMPA results and they revealed that NE was successful in increasing the permeation of VAC extract. This formulation could improve oral bioavailability of extract due to enhanced solubility and permeability of phytocomplex

An integrated bioinformatics approach to improve two-color microarray quality-control: impact on biological conclusions

Omics technology used for large-scale measurements of gene expression is rapidly evolving. This work pointed out the need of an extensive bioinformatics analyses for array quality assessment before and after gene expression clustering and pathway analysis. A study focused on the effect of red wine polyphenols on rat colon mucosa was used to test the impact of quality control and normalisation steps on the biological conclusions. The integration of data visualization, pathway analysis and clustering revealed an artifact problem that was solved with an adapted normalisation. We propose a possible point to point standard analysis procedure, based on a combination of clustering and data visualization for the analysis of microarray data