Christ University

About: Christ University is a education organization based out in Bengaluru, India. It is known for research contribution in the topics: Computer science & Convection. The organization has 2267 authors who have published 2715 publications receiving 14575 citations. The organization is also known as: Christ College & Christ University.

An electrochemical sensor for nanomolar detection of caffeine based on nicotinic acid hydrazide anchored on graphene oxide (NAHGO).

Abstract: A simple modified sensor was developed with nicotinic acid hydrazide anchored on graphene oxide (NAHGO), by ultrasonic-assisted chemical route, using hydroxy benzotriazole as a mediator. Structural and morphologies of NAHGO samples were investigated in detail by Fourier-Transform Infrared spectroscopy (FT-IR), Powder X-ray diffraction (P-XRD), Raman spectroscopy, Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Thermogravimetric analysis (TGA). The detailed morphological examination and electrochemical studies revealed the delaminated sheet with the tube-like structure of NAHGO provided the route for more electroactive surface which influenced the electrooxidation of caffeine with increased current. The electrochemical behaviour of NAHGO on a glassy carbon electrode (GCE) for caffeine detection was demonstrated by employing voltammetric techniques. The influence of scan rate, pH, and concentration on caffeine's peak current was also studied. The NAHGO sensor was employed for the determination of caffeine in imol plus and energy drinks. The detection limit determined was 8.7 × 10–9 M, and the best value was reported so far. The results show that NAHGO modified electrodes are one of the best preferences to establish new, efficient, and reliable analytical tools for the detection of caffeine.

Large Power Factors in Wide Band Gap Semiconducting RFeO3 Materials for High-Temperature Thermoelectric Applications

Abstract: While most of the thermoelectric materials work well only at low and mid temperatures, high-temperature thermoelectric materials (T > 900 K) are equally important for the operation of deep-spacecra...

Exploring the Role of E-Servicescape Dimensions on Customer Online Shopping: A Stimulus-Organism-Response Paradigm

Abstract: With limited empirical evidence and an incomplete understanding of e-servicescape environment, its effects on e-commerce websites still needs to be explored Hence, the study understands and assesses the effects of e-servicescape environment on customer purchase behavior, considering the moderating role of gender The stimulus-organism-response framework was adapted to formulate a conceptual model, in which the e-servicescape (stimulus) features were modelled as an antecedent of customer trust (organism) on website that directs customer behaviour of purchase intention (response) To conduct an analysis, a data sample of 304 responses was collected from those who have earlier used e-commerce websites using a structural equation modelling technique Results of the study shows that e-servicescape dimensions are a strong predictor of trust that strongly impacts customer purchase intention Results further reveal that in an online environment, the gender gap is depleting as it impacts all three dimensions of the e-servicescape on customer behavior which remains consistent for both groups