Shiv Nadar University

About: Shiv Nadar University is a education organization based out in Dadri, Uttar Pradesh, India. It is known for research contribution in the topics: Population & Graphene. The organization has 1015 authors who have published 1924 publications receiving 18420 citations.

First-Principles Investigation of the 1T-HfTe2 Nanosheet for Selective Gas Sensing

Abstract: In this work, we have explored the sensing capabilities of a monolayer 1T-HfTe2 nanosheet for the environmental hazardous gases like CO, CO2, NO, NO2, NH3, and N2O, along with common environmental ...

Improved broadband antireflection in Schottky-like junction of conformal Al-doped ZnO layer on chemically textured Si surfaces

Abstract: Chemically textured Si with improved absorption in the complete range of solar spectrum is investigated by ultraviolet/visible/near-infrared (UV/Vis/NIR) spectroscopy, showing an average specular reflectance of ∼0.4% in the wavelength of 500–3000 nm. The pyramidal structures on such solar-blind Si can reduce the reflectance further below 0.1% in the UV region by conformal growth of granular Al-doped ZnO (AZO) films. X-ray diffraction analyses suggest the growth of polycrystalline AZO on faceted-Si. Moreover, marginal increase in electrical conductivity of AZO is found on textured surfaces, whereas rise in leakage current in Schottky-like Ag/AZO/Si/Ag heterostructure devices is noticed with increasing Si surface area.

Diverse synthesis of natural product inspired fused and spiro-heterocyclic scaffolds via ring distortion and ring construction strategies

Abstract: Several natural product inspired fused and spiro-heterocyclic scaffolds were prepared by ring distortion and ring construction strategies and evaluated for anti-breast cancer activity. A facile domino Pictet–Spengler lactamization (PSL) afforded nine natural product inspired indolo[2,3-a]quinolizidine and indolo[8,7-b]indolizidine scaffolds which are converted to seven other scaffolds by functional group transformation, ring distortion and ring construction strategies. In vitro screenings of this library of sixteen scaffolds with six distinct architectures against MCF7 cell lines afforded two compounds (10 and 21) with modest activity. Principal component analysis of this library against databases of FDA approved drugs, commercial compounds and FDA approved breast cancer compounds indicated an eclectic mix of structures among the molecules.

Environmental Management of E-waste

Abstract: The waste derived from electrical and electronic equipment (i.e., E-waste) causes severe issues for the geo-environment. The heterogeneity and complexity of E-waste, containing lethal and toxic substances, are difficult to decompose and are classified as hazardous materials. High exposure of hazardous materials is harmful to human life. The improper management of E-waste with processing by the informal sector in nonscientific manner is making this scenario catastrophic. Additionally, illegal shifting by mislabelling E-waste from developed countries and exporting to developing countries makes it difficult to calculate the inventory and handling of the E-waste. Therefore, a sustainable environmental management of E-waste by policies and governing regulations from its collection to recycling are necessary. These measures of E-waste management should increase the advance recycling practices by the formal sector and decrease the amount of waste contamination to the environment that is endangering human health and whole ecosystem.