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1

PHYSICOCHEMICAL PROPERTIES OF CHITIN ISOLATED FROM SHELL OF INDUSTRIAL CRABS OF VARIOUS SPECIES

100%

Sorokoumov I., Zagorskiy I., Zagorskaya D., Uryash V., Kokurina N., Larina V., Nemtsev S.

Progress on Chemistry and Application of Chitin and its Derivatives

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2010

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vol. 15

5 - 10

EN

Differential thermal analysis was carried out over the range of –190 ÷ 400 °С on six samples of chitin from shells of industrial crabs of various species. All samples of the chitin have several relaxation transitions of endothermal character (g1-, g2-, β- and γ-).

2

Characterization of chemical and physical parameters of post copper slag

100%

Lowinska-Kluge A., Piszora P., Darul J., Kantel T., Gambal P.

Open Physics

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2011

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vol. 9

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issue 2

380-386

EN

Pilot studies concerning industrial scale application of post copper slag as a nano-additive for the modification of the corrosion resistance of cement composites have been described. The influence of a tribochemical treatment on some physicochemical properties as well as the corrosion resistance of the obtained composites have been evaluated based on DTG, RTG, and SEM coupled with EDX measurements and chemical analysis. It was observed that the so-called “size particle additive effect” influences the course and rate of transformations in the formed cement composites, and may lead to specific and desirable properties.

3

Microemulsion and microemulsion based gel of Zaleplon for transdermal delivery: Preparation, optimization, and evaluation

75%

Naeem M.

Acta Poloniae Pharmaceutica - Drug Research

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2019

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vol. 76

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issue 3

543-561

EN

In this work solubility and permeability of BCS II drug Zaleplon was increased by loading it into microemulsion which in turns enhance bioavailability. Carbomer 940 was incorporated to fabricate microemulsion based gel (MEBG) which sustained transdermal delivery. Solubility studies screened Castor oil, Tween 80 (surfactant), and Polyethylene glycol 200 (co-surfactant) for preparing Microemulsion. Pseudoternary phase diagrams were used to find out microemulsion region. Box Behnken Design (BBD) was used to optimize microemulsions which were initially investigation for physicochemical characteristics. Oil, Smix and water; Q24, Flux and lag time were selected as independent and dependent variables, respectively. Franz diffusion cell was used to compare in vitro permeability of optimized microemulsions across Rabbit skin. Variables were related using mathematical equations and response surface plots. MEBG was compared for stability, in-vitro drug permeation, skin irritation and anti-inflammatory studies using control gel and in-vivo bioavailability study with oral tablet. Microemulsions showed physiological pH of 5.36 - 5.98, conductivity of 140 - 186 μS/cm, isotropic value of 1.340 - 1.417, average droplet size of 63 - 89 nm, homogeneity, droplet size of 53 - 161 cP and spherical shape. Predicted values of optimized microemulsions were in reasonable agreement with experimental values. Formulations were stable and non-irritating to the skin. Significant difference was investigated when comparing percent inhibition of edema of MEBG (85%) and control gel (42%) with standard. MEBG behavior differed significantly from oral tablet formulation in vivo bioavailability. Such BBD based estimation will reduce time and cost in drug designing, delivery and targeting.

4

Application of Ultrasonic Methods for Evaluation of High-Pressure Physicochemical Parameters of Liquids

75%

Kiełczyński P., Ptasznik S., Szalewski M., Balcerzak A., Wieja K., Rostocki A. J., Kiełczyński P., Ptasznik S., Szalewski M., Balcerzak A., Wieja K., Rostocki A. J.

Archives of Acoustics

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2019

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vol. 44

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issue 2

5

Restoration of Charcoal-Site Soil Properties on Modified Land Models through Bioremediation Potential of Peanut (Arachis hypogaea L.)

75%

Mejico S. M., Garcia R. B., Familara J. A.

World News of Natural Sciences

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2019

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vol. 23

321-335

EN

Burning can substantially change vegetation status, and enhance the soil erosion of previously productive areas (Santin & Doerr, 2016). This is why bioremediation techniques have been developed to accelerate the recovery of soil properties. In this four month-long study, the bioremediation potential of peanut plants was tested in restoring charcoal-site soil properties. The experiment had three set-ups, a positive control and a control that had undergo pyrolysis for a week and then was planted with peanuts. The moisture content and pH, Nitrogen, Phosphorus and Potassium (NPK) of all soils were tested with a soil kit from the Department of Agriculture, before and after pyrolysis and after four months, which was also validated by the Bureau of Soils. In the experiment, plant morphology, mainly height, number of leaves and leaf area index (LAI) showed a linear increase all throughout the study, unlike the number of flowers. These were sporadic, with first appearance on week 4, and had a peak of 16 flowers at week 10 from 14 pods. With regard to soil properties, planting peanuts made the soil alkaline (7.3 - up from 5.8 pH after pyrolysis), while Nitrogen content increased from low to medium. In contrast, Phosphorus levels stayed high all throughout the study, while Potassium levels decreased after the pyrolysis and become deficient after four months. Moreover, the moisture content increased from 3.905 after pyrolysis, to 12.69. These results provide evidence that the peanut plant has bioremediation potential on charcoal-site soils after a four month long treatment period.

6

EXPERIMENTAL AND THEORETICAL MODELING OF WASTE COMBUSTION IN A CHAMBER WITH A MOVING GRATE

75%

Jaworski T. J., Pikoń K., Kajda-Szcześniak M.

Chemical and Process Engineering

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2018

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vol. 39

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issue 1

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PHYSICOCHEMICAL PROPERTIES OF CHITIN ISOLATED FROM SHELL OF INDUSTRIAL CRABS OF VARIOUS SPECIES

Characterization of chemical and physical parameters of post copper slag

Microemulsion and microemulsion based gel of Zaleplon for transdermal delivery: Preparation, optimization, and evaluation

Application of Ultrasonic Methods for Evaluation of High-Pressure Physicochemical Parameters of Liquids

Restoration of Charcoal-Site Soil Properties on Modified Land Models through Bioremediation Potential of Peanut (Arachis hypogaea L.)

EXPERIMENTAL AND THEORETICAL MODELING OF WASTE COMBUSTION IN A CHAMBER WITH A MOVING GRATE