Microalgal-based macro-hollow loofah fiber bio-composite for methylene blue removal: A promising step for a green adsorbent.

This study looked into how well the macro-hollow loofah fiber with and without the bio-attaching with green microalga (Chlamydomonas reinhardtii OR242521) was applied methylene blue elimination from water. Based on the results, the biosorption capacity of loofah sponge for methylene blue significantly increased with the increase of contact time, weight of microalgal biofilm, and methylene blue concentration. The maximum biosorption capacity was achieved after 120 min, after 0.

Isolation of as source of novel anti-multi-antibiotic resistant microbes agents; fractionation and identification of bioactive compounds.

In this work, freshwater microalga, was isolated from the River Nile, identified and deposited in genebank under name of isolate REH10 with accession number OK336515. N-hexane extract was produced high inhibition effects against multi-antibiotic resistant pathogens. The n-Hexane extract was fractionated and 2 fractions (F3 & F4) exhibited high antibacterial activity (15 - 20 mm) compared with other fractions.

Bio-electrochemical frameworks governing microbial fuel cell performance: technical bottlenecks and proposed solutions.

Microbial fuel cells (MFCs) are recognized as a future technology with a unique ability to exploit metabolic activities of living microorganisms for simultaneous conversion of chemical energy into electrical energy. This technology holds the promise to offer sustained innovations and continuous development towards many different applications and value-added production that extends beyond electricity generation, such as water desalination, wastewater treatment, heavy metal removal, bio-hydrogen production, volatile fatty acid production and biosensors. Despite these advantages, MFCs still face technical challenges in terms of low power and current density, limiting their use to powering only small-scale devices.

Defensive Medicine Practice in Different Specialties among Junior Physicians in KasrAlAiny Hospitals, Egypt.

Background: Defensive medicine has great impact on medical practice and population health. It may provide enhanced quality of services with good explanations to patients resulting in increased satisfaction. On the other hand, it might include unnecessary investigations, prescription of unnecessary treatments which may be expensive or dangerous for patients.

Formation of electroactive biofilms derived by nanostructured anodes surfaces.

Microbial fuel cells (MFCs) have significant interest in the research community due to their ability to generate electricity from biodegradable organic matters. Anode materials and their morphological structures play a crucial role in the formation of electroactive biofilms that enable the direct electron transfer. In this work, modified electrodes with nanomaterials, such as multiwalled carbon nanotubes (MWCNTs), reduced graphene oxide (rGO), AlO/rGO or MnO/MWCNTs nanocomposites were synthesized, characterized and utilized to support the growth of electrochemically active biofilms.