http://pucir.inflibnet.ac.in:8080/jspui/handle/123456789/552 2025-10-30T07:38:59Z http://pucir.inflibnet.ac.in:8080/jspui/handle/123456789/964 Title: Efficient removal of 17β-estradiol using hybrid clay materials: Batch and column studies Authors: Lalhriatpuia, C Abstract: Hybrid materials were obtained modifying the bentonite (BC) and local clay (LC) using hexadecyltrimethylammonium bromide (HDTMA) or the clay were pillared with aluminum followed by modification with HDTMA. The materials were characterized by the SEM, FT-IR and XRD analytical tools. The batch reactor data implied that the uptake of 17β-estradiol (E2) by the hybrid materials showed very high uptake at the neutral pH region. However, at higher and lower pH conditions, slightly less uptake of E2 was occurred. The uptake of E2 was insignificantly affected changing the sorptive concentration from 1.0 to 10.0 mg/L and the background electrolyte (NaCl) concentrations from 0.0001 to 0.1 mol/L. Moreover, the sorption of E2 by these hybrid materials was fairly efficient since within 30 mins of contact time, an apparent equilibrium between solid and solution was achieved, and the data was best fitted to the PSO (pseudo-second order) and FL-PSO (Fractal-like-pseudo second order) kinetic models compared to the PFO (pseudo-first order) model. The fixed-bed column results showed that relatively high breakthrough volume was obtained for the attenuation of E2 using these hybrid materials, and the loading capacity of E2 was estimated to be 75.984, 63.757, 58.965 and 49.746 mg/g for the solids BCH, BCAH, LCH and LCAH, respectively. 2016-03-14T00:00:00Z http://pucir.inflibnet.ac.in:8080/jspui/handle/123456789/962 Title: Edible Coatings in Extending the Shelf Life of Fruits: A Review Authors: Lalhriatpuia, C Abstract: Post-harvest losses of fruits are a matter of concern for all those nations whose economy is based on horticulture. Fruits face tremendous loss due to old-fashioned preservation practice and ignorance about the preservation strategies. Consumers around the world demand for food of high-quality, without chemical preservatives and an extended shelf life. New technological advances in edible coatings for food may hold promise in extending shelf life, reducing packaging layers, meeting food safety and quality requirements. Among various coatings, edible coatings have been proven one of the best biologically safe preservative coatings for different types of foods because of its film-forming properties, antimicrobial actions, bio degradability and biochemical properties. It acts as a natural barrier to moisture and oxygen, which are the main agents of deterioration of fruits and vegetables. Edible coatings have the ability to prolong shelf life of the fruits by minimizing the rate of respiration and maintaining quality attributes. It has antifungal and antibacterial properties which provide a defensive barrier against microbial contamination. The present review describes about the different edible coatings and their potential application for enhancing the postharvest life and quality of different types of fruits. 2021-04-23T00:00:00Z http://pucir.inflibnet.ac.in:8080/jspui/handle/123456789/958 Title: Nanopillars TiO2 thin film photocatalyst application in the remediation of aquatic environment Authors: Lalhriatpuia, C Abstract: We assessed the photocatalytic behavior of Nanopillars-TiO2 thin films obtained onto a borosilicate glass in the degradation of 17α-ethynylestradiol (EE2) from aqueous solution under batch reactor operations. The thin films were characterized by the XRD, SEM, AFM analytical methods. BET specific surface area and pore sizes were also obtained. The photocatalytic degradation of EE2 using the UV light was studied at wide range of physico-chemical parametric studies to determine the mechanism of degradation as well the practical implacability of the technique. The batch reactor operations were conducted at varied pH (pH 4.0 to 10.0), EE2 initial concentration (1.0 to 5.0 mg/L) and presence of several interfering ions, i.e., cadmium nitrate, copper sulfate, zinc chloride, sodium chloride, sodium nitrate, sodium nitrite, glycine, oxalic acid and EDTA in the photocatalytic degradation of EE2. The time dependence photocatalytic degradation of EE2 was demonstrated with the pseudo-first-order rate kinetics. The mineralization of EE2 was assessed using the total organic carbon analysis conducted at varied initial pH and EE2 concentrations. Further, the repeated use of the photocatalyst enhanced the applicability of thin films in the successive photocatalytic operations. 2016-06-30T00:00:00Z http://pucir.inflibnet.ac.in:8080/jspui/handle/123456789/957 Title: Therapeutic applications of carbohydrate‑based compounds: a sweet solution for medical advancement Authors: Lalhriatpuia, C Abstract: Carbohydrates, one of the most abundant biomolecules found in nature, have been seen traditionally as a dietary component of foods. Recent findings, however, have unveiled their medicinal potential in the form of carbohydrates-derived drugs. Their remarkable structural diversity, high optical purity, bioavailability, low toxicity and the presence of multiple functional groups have positioned them as a valuable scaffold and an exciting frontier in contemporary therapeutics. At present, more than 170 carbohydrates-based therapeutics have been granted approval by varying regulatory agencies such as United States Food and Drug Administration (FDA), Japan Pharmaceuticals and Medical Devices Agency (PMDA), Chinese National Medical Products Administration (NMPA), and the European Medicines Agency (EMA). This article explores an overview of the fascinating potential and impact of carbohydrate-derived compounds as pharmacological agents and drug delivery vehicles. 2024-01-10T00:00:00Z