Volumetric properties of binary mixtures of cyclohexane with 2-ethoxyethanol at 303.15, 308.15, 313.15 and 318.15 K

1206-1210The excess molar volumes (VmE) for binary liquid mixtures of cyclohexane+2-ethoxyethanol have been calculated from the experimental values of density and ultrasonic velocity at temperatures 303.15, 308.15, 313.15 and 318.15 K and atmospheric pressure over the entire composition range. The results have been used to estimate the partial molar volumes m,i of the components. The excess values have been fitted to Redlich-Kister polynomial equation. The changes of VmE and with composition and temperature have been discussed with reference to the nature of interactions between the component molecules

ISOLATION AND EVALUATION OF SEED COAT CONSTITUENTS OF MORINGA OLEIFERA

Traditionally, Moringa oleifera seed powder has been used as eco-friendly clarifying agent for drinking water. Natural polysaccharides are widely used as excipients in pharmaceutical industry. In the present In vitro study, starch and protein-mucilage fractions were isolated from the seed coats of Moringa oleifera. The isolated fractions were evaluated as binder and disintegrant in the preparation of paracetamol tablets. The prepared tablets were assessed for comparative In vitro quality control parameters such as weight variation, hardness, friability and disintegration time. The parameters were compared with paracetamol tablets prepared using potato starch as binder and disintegrant. Significant variation was observed in hardness, friability, and disintegration time among three formulations. Paracetamol tablets with protein-mucilage fraction were found to be relatively harder, less friable, and taking more time to disintegrate than the tablets made with potato starch. The tablets with isolated starch fraction were found to be almost similar to tablets prepared with potato starch with respect to hardness, friability and disintegration time. The isolated starch fraction and protein-mucilage fractions exhibited good binding and disintegrating properties and were natural in origin, nontoxic, biodegradable and bio compatible. Hence, they could be employed as binding and disintegrating agents in the formulation of paracetamol immediate release dosage forms. Since the protein fraction showed relatively higher values of hardness and disintegration time with less friability and could be explored for designing sustained release paracetamol tablets. Key words: Moringa seeds, starch fraction, protein-mucilage fraction, Paracetamol tablets, binder and disintegrant Â

A NOVEL METHOD DEVELOPMENT AND VALIDATION FOR THE QUANTIFICATION OF NEFOPAM HYDROCHLORIDE IN PARENTERAL DOSAGE FORM BY RP-HPLC METHOD

Objective: Using RP-HPLC, a simple, accurate, and exact method for estimating the Nefopam Hydrochloride parenteral dose form was devised. Methods: The isocratic mode of the RP-HPLC method used an Inertsil C8 column as the stationary phase and a mobile phase of potassium dihydrogen phosphate with pH 3.0: Acetonitrile (70:30) at a flow rate of 1 ml/min. With UV detection at 220 nm, a flow rate of 1 ml/min was established. Results: The developed RP-HPLC technique revealed acceptable linearity (R2 = 0.9998) and good assay results in the concentration range of 0.004–0.08 mg/ml (103.3 percent). Further forced degradation investigations using 0.1N Hydrochloric acid (acid degradation), 0.1NNaOH (base degradation), and 3 percent H2O2 (Hydrogen peroxide) were carried out using RP-HPLC, and percent degradation values were determined. In peroxide degradation conditions, the medication was shown to be unstable. Conclusion: In compliance with ICH requirements, the developed procedures were validated

Deconvolution of pure component FT-Raman spectra from thermal emission of barium sulfate and graphite samples using the BTEM algorithm

Band-target entropy minimization (BTEM) was applied for the extn. of pure component Raman spectra from samples exhibiting a significant thermal background due to sample emission. In this method, singular value decompn. was first used to calc. the right singular vectors of the spectroscopic data matrix. Then the non-noise right singular vectors were examd. for localized spectral features, which were subsequently used for spectral recovery. These local features were targeted with the BTEM algorithm to recover the pure component Raman spectra. Accordingly, the interfering thermal background was removed. This method of anal. is applied to graphite and barium sulfate Raman spectroscopic data. [on SciFinder (R)

One step synthesis of chromium-containing periodic mesoporous organosilicas and their catalytic activity in the oxidation of cyclohexane

Chromium-containing ethane-bridged hybrid mesoporous materials (Cr-PMO) with uniform hexagonal arrangement were synthesized by two different synthesis routes using 1,2-bis(triethoxysilyl)ethane (BTEE) and tetraethyl orthosilicate (TEOS) as silica sources and alkyltrimethyl ammonium salts (ATMA) as surfactants. Powder X-ray diffraction, TEM, N2 adsorption–desorption, FT-IR, in situ FT-Raman, UV–Vis, XPS, 29Si MAS NMR and 13C CP MAS NMR were used to probe the mesoporous structure and the nature of chromium sites in the hybrid catalyst matrix. PXRD, TEM and N2 adsorption–desorption analysis showed that the original hexagonal structure of the materials is maintained after chromium substitution, while FT-Raman, UV–Vis and XPS analysis showed that chromium atoms exist in a highly dispersed state. The catalytic performance of the chromium-containing hybrid samples was tested in the liquid-phase oxidation of cyclohexane with aqueous hydrogen peroxide (H2O2) and non-aqueous tert-butylhydroperoxide (TBHP) as oxidants. The hybrid materials exhibited better catalytic activities and were more stable than the conventional Cr-MCM-41 catalyst. The higher catalytic activity of the new chromium-containing molecular sieves is attributed to the improved hydrophobicity of the materials and to the complementary structural features that facilitates the accessibility of cyclohexane to the active framework chromium sites

Fibonacci Multichaos Algorithm for Medical Image Encryption for Transmission Through Wavelet Transform Based OFDM System and Its VLSI Realization

At every stage of the digital media transfer, storage, and retrieval process, sensitive images are rendered indecipherable through the use of image encryption. Germany's hospitals have relied on image encryption for years to keep patient data from being accessed by the IT personnel, stolen or left recorded into the network system that could be compromised remotely. In order to encrypt a file manually, the process is extremely time- and effort-consuming. Automating this process while retaining high security is desirable. In this research, we present an approach for encrypting medical images that combines scientific computing with cryptography. This algorithm uses the Fibonacci Multi Chaos Algorithm to encrypt medical images, making them more secure. Distinct wavelet transform orthogonal frequency division multiplexing is used to convey picture data in this work, which is a reliable and secure method

Consumers perception on green marketing towards eco-friendly fast moving consumer goods

In today’s commercial world, ecological concerns have become increasingly essential. A lot of governments care about environmental issues. Sustainable development that doesn’t harm the environment is a major concern for companies today. The term “green marketing” describes the strategy of promoting and selling goods and services because of their positive impact on the natural world. Either the product or service itself is environmentally friendly, or the manufacturing process, packaging, and marketing are modified to be more eco-friendly. Concerns about how products harm the environment have recently been expressed by both manufacturers and consumers. Lead-free paint, organic foods, and low-power (or “energy-efficient”) electrical equipment are examples of products that consumers and manufacturers are focusing on as being “green” or ecologically friendly. Additionally, the importance of the green marketing idea is becoming more and more apparent to marketers. Though numerous green marketing studies have been conducted globally, there hasn’t been much academic research on consumer perception and preferences in India. This study explores consumer green ideals, environmental knowledge, green behaviours, and green products in addition to providing a brief review of environmental challenges. This article emphasises consumer views of and favorites for green marketing tactics and goods through the use of a planned questionnaire. To study was lead on 702 respondents. Customers demonstrated a high level of knowledge about eco marketing tactics and products. The respondents also showed strong environmental values. Research has offered helpful insights for green product marketers owing to the great perceived eco cost amongst customers, and it emphasises essential for creating marketing communication campaigns promoting green products

In situ synthesis of ammonium salt of 12-molybdophosphoric acid on iron phosphate and the ammoxidation functionality of the catalyst in the transformation of 2-methylpyrazine to 2-cyanopyrazine

The ammonium salt of 12-molybdophosphoric acid (AMPA) on iron phosphate was synthesized via in situ interaction between the phosphate species of the support and the molybdenum component of ammonium heptamolybdate. The concentration of AMPA was varied such that the nominal MoO3 content of the catalysts was in the range of 5–20 wt.%. The formation of AMPA, possessing the typical Keggin structure, was confirmed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and FT-Raman spectroscopy. Thermo-gravimetric and differential thermal (TG/DT) analyses were used to establish the stability of these catalysts. Whereas the support, FePO4, displayed low activity but maximum selectivity to 2-cyanopyrazine (CP), the in situ synthesized catalysts exhibited higher activity during the ammoxidation of 2-methylpyrazine (MP). At lower reaction temperatures and particularly, at lower AMPA loading, the in situ synthesized catalysts have shown higher activity and retained substantially high selectivity

IoT sensor data retrieval and analysis through cloud environment for effective power management

The Internet of Things (IoT) brings new products to everyone to improve daily life. Other newly created techniques, including Big Data, Cloud Services, and surveillance, can participate through these technological advances. In this study, the researchers look at the four systems mentioned above to identify their shared functions and integrate them to create useful potential applications. Despite the limitations of the smart city concept, researchers would seek innovative methods to collect and process sensor information within an IoT-enabled smart building. A cloud service would have been used as the foundation technology for the proposed schema management platform, collecting the information generated by each sensor in the smart factory. It was easy to manage and manipulate remotely using IoT technology and a mobile device with a network connection. Here, to enhance safety of the entire building by installing multiple IoT devices in a smart building. The proposed systems were designed in a simulated Cooja simulator environment. The proposed approaches to the collection and manipulation of sensor information in smart cities can help us create a green, resource-efficient project

In situ synthesis of ammonium salt of 12-molybdophosphoric acid on iron phosphate and the ammoxidation functionality of the catalyst in the transformation of 2-methylpyrazine to 2-cyanopyrazine

The ammonium salt of 12-molybdophosphoric acid (AMPA) on iron phosphate was synthesized via in situ interaction between the phosphate species of the support and the molybdenum component of ammonium heptamolybdate. The concentration of AMPA was varied such that the nominal MoO3 content of the catalysts was in the range of 5–20 wt.%. The formation of AMPA, possessing the typical Keggin structure, was confirmed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and FT-Raman spectroscopy. Thermo-gravimetric and differential thermal (TG/DT) analyses were used to establish the stability of these catalysts. Whereas the support, FePO4, displayed low activity but maximum selectivity to 2-cyanopyrazine (CP), the in situ synthesized catalysts exhibited higher activity during the ammoxidation of 2-methylpyrazine (MP). At lower reaction temperatures and particularly, at lower AMPA loading, the in situ synthesized catalysts have shown higher activity and retained substantially high selectivity