Green and ecofriendly materials for the remediation of inorganic and organic pollutants in water

Authors: Tatarchuk T., Bououdina M., Al-Najar B., Bitra R.B.
The widespread of organic and inorganic pollutants in wastewater from various industries, are responsible for serious environmental problems meanwhile represent a danger for human being. Therefore, the search of cost-effective methods of wastewater treatment containing in particular heavy metals and dyes, become of great importance. Noteworthy, adsorption has proven to [...]

Optimization of CO2 Biofixation by Chlorella vulgaris Using a Tubular Photobioreactor

Authors: Hossain S.M.Z., Hossain M.M., Razzak S.A.
The effects of various CO2 concentrations in CO2 bioconversion by cultivation of microalga Chlorella vulgaris were investigated using a vertical tubular photobioreactor. The response surface technique with central composite design was applied to model the CO2 biofixation rate, the specific growth rate (SGR), and the biomass productivity of C. vulgaris [...]

Deep belief active contours (DBAC) with its application to oil spill segmentation from remotely sensed sea surface imagery

Authors: Albalooshi F.A., Sidike P., Sagan V., Albalooshi Y., Asari V.K.
In this paper, we propose a machine learning-based oil spill segmentation using aerial images. In detail, a novel deep neural network-based object segmentation, named Deep Believe Active Contours (DBAC), is introduced, where a pre-trained deep belief neural network is utilized to guide the moments of active contours. Results show that [...]

Bioengineered intravaginal isolate of Lactobacillus plantarum expresses algal lectin scytovirin demonstrating anti-HIV-1 activity

Authors: Janahi E.M.A., Haque S., Akhter N., Wahid M., Jawed A., Mandal R.K., Lohani M., Areeshi M.Y., Almalki S., Das S., Dar S.A.
Efforts to develop preventatives against HIV infection through sexual route have identified, among many, algal lectins as the potent molecules for scaffolding HIV entry inhibition. Algal lectin scytovirin (SVN) from Scytonema varium, a cyanobacterium, has anti-HIV effects with the potential for use in sculpting HIV neutralization. We created a recombinant [...]

Multiobjective optimization of microalgae (Chlorella sp.) growth in a photobioreactor using Box-Behnken design approach

Authors: Hossain S.M.Z., Alnoaimi A., Razzak S.A., Ezuber H., Al-Bastaki N., Safdar M., Alkaabi S., Hossain M.M.
A parameter optimization approach to maximize the specific growth rate of the Chlorella vulgaris microalgae species, its biomass productivity, and CO2 capture rate was investigated. The Box-Behnken experimental design technique was applied with temperature, nitrogen to phosphorus ratio, and light-dark cycle per day, as the growth controlling parameters. For each [...]

Synthesis, molecular modeling and biological screening of some pyrazole derivatives as antileishmanial agents

Authors: Bekhit A.A., Saudi M.N., Hassan A.M.M., Fahmy S.M., Ibrahim T.M., Ghareeb D., El-Seidy A.M., Al-Qallaf S.M., Habib H.J., Bekhit A.E.-D.A.
Aim: Novel open chain and cyclized derivatives containing pyrazole scaffold were designed, synthesized and evaluated as antileishmanial compounds. Methodology & results: In silico reverse docking experiment suggested Leishmania major pteridine reductase (Lm-PTR1) as a putative target for the synthesized compounds. In vitro antileishmanial screening against L. major promastigotes and amastigotes [...]

Characterizing temporal variability of PM 2.5 /PM 10 ratio and its relationship with meteorological parameters in Bahrain

Authors: Coskuner G., Jassim M.S., Munir S.
The Kingdom of Bahrain is ranked in the top 10 most urban ambient air polluted countries in the world due to high particulate matter (PM) concentrations. The main objective of this article is to analyze comprehensively long-term temporal (annual, seasonal, and monthly) trends of PM 2.5 /PM 10 ratios using [...]

Metal nanoparticles fabricated by green chemistry using natural extracts: Biosynthesis, mechanisms, and applications

Authors: El-Seedi H.R., El-Shabasy R.M., Khalifa S.A.M., Saeed A., Shah A., Shah R., Iftikhar F.J., Abdel-Daim M.M., Omri A., Hajrahand N.H., Sabir J.S.M., Zou X., Halabi M.F., Sarhan W., Guo W.
Nanoparticles (NPs) are new inspiring clinical targets that have emerged from persistent efforts with unique properties and diverse applications. However, the main methods currently utilized in their production are not environmentally friendly. With the aim of promoting a green approach for the synthesis of NPs, this review describes eco-friendly methods [...]

Photoelectrochemical nanosensors

Authors: Sultan S., Nimal R., Aftab S., Kurbanoglu S., Shah A., Ozkan S.A.
Electrochemical and optical sensors are useful probes for the detection of medically relevant analytes. For more sensitive drug detection, the properties of both of these devices are combined into a photoelectrochemical sensor (PECS). The photocatalytically generated current in a photoelectrochemical sensor is enhanced by different combinations of organic and inorganic [...]

Nanostructures of gelatin for encapsulation of food ingredients

Authors: Ali O.M., Hashem Y., Bekhit A.A., Khattab S.N., Elkhodairy K.A., Freag M.S., Teleb M., Elzoghby A.O.
One of the most commonly used biopolymers for drug and food delivery applications is gelatin. It is characterized by unique properties which makes it a good candidate for fabrication of food nanoparticles. These properties include biodegradability, biocompatibility, easy modification, and low cost. Therefore this chapter mentions the recent applications of [...]
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