Khalid Zainulabdeen

Al-Nahrain University

Poly(vinyl chloride) (PVC) has been a fascinating subject for polymer science research. Its characteristics are heightened by its inherent structural faults resulting from direct manufacturing (by free-radical polymerization), which also cause its thermal instability. Some of the fundamental limiting features of PVC have been suggested to be allevi...

Malnutrition and food insecurity are two major diseases combating human development in Nigeria as they cause poor infant development, deteriorating maternal and child health, weaker immune systems, risky pregnancy and childbirth. This paper provides an in-depth overview of the implementation, impact, benefits and costs of the United Nations World F...

The constraints of pure PMMA have made the cross-linkage of polymethyl methacrylate (PMMA) an interesting issue to meet application requirements. Cross-linked PMMA offers several advantages over its uncross-linked counterpart, due to its exceptional electrical insulation, chemical stability, clarity, improved heat resistance, superior mechanical pr...

Objectives. To study the transition of electrons in 1,2-phenyl(4'-carboxy)benzylidene Schiff base ligand and transition metal ions, optical properties, as well as the surface chemistry of supported transition metals using diffuse reflectance spectroscopy (DRS); to study the roughness and morphology of the Schiff base ligand and its complexes using...

There are multiple linkages in homeostasis and illness between the function and development of the commensal microbiota and the mammalian endocrine system. While the microbiome plays crucial roles in training and maturity of vital host innate and adaptive immune system components, the immune system organizes and protects the essential elements of h...

The influence of different nitrogen sources, initial pH, and varied inoculum size on the fermentation capacity of Saccharomyces cerevisiae on sorghum wort substrate was investigated. The parameters analyzed included ethanol concentration, pH, specific gravity, and total soluble sugars after 72 h fermentation period using standard methods such as sp...

Benzimidazole and its structural analogues have garnered significant attention across diverse disciplines, including the fields of medicine and agriculture, owing to their remarkable versatility and immense potential. This review article aims to elucidate the multifaceted importance of benzimidazole-based compounds and their derivatives within thes...

The optimal enhancement of athletic performance, recovery from exhaustion after exercise, and injury prevention are products of appropriate nutrition. Nutritional supplements that contain proteins, carbohydrates, vitamins, and minerals are frequently utilized in various sports to complement the recommended daily amounts. Several of these supplement...

Sorghum and yellow cassava can be regarded as the top two raw materials in the production of value-added food products due to their rich nutritional and food properties. Thus, this study was carried out to study the effect of these processing methods on the microbiological, proximate, antinutritional, and mineral composition of these raw materials....

In the current study, cephalexin and two beta-lactam antibiotics were combined with four distinct aldehydes: 3-hydroxybenzaldehyde, 4-dimethylaminobenzaldehyde, 4-methoxybenzaldehyde, and 4-bromobenzaldehyde, to synthesize Schiff bases. The reaction between the free amino group of the acylamino side chain and the aldehydes resulted in the formation...

Three complexes ([CuL2(H2O)2], [NiL2(H2O)2], and [ZnL2Cl2]) have been synthesized through the reaction of metal salts and levofloxacin and characterized by spectrophotometers. The morphology of the complexes was investigated using field emission scanning electron microscopy (FESEM). The physicochemical properties of these complexes were evaluated u...

Recent research on the biological activity of polyacrylamide represents a significant advance in science. Long-standing applications for the chemical compound polyacrylamide include wastewater treatment and food production. Recent research has revealed that this substance has a biological activity that may be exploited to control the functioning of...

Polyvinyl chloride (PVC), is one of the main synthetic materials used widely in many applications of our life aspects today. Though, the practical usage of it was always affected by some destructive factors like UV-light and heat. The optical and surface characteristics of pure and modified PVC thin films were compared throughout a temperature rang...

Background: The biological assessment of trimethoprim organotin complexes is the subject of the work discussed in this publication. Objective: The purpose of this project is to investigate the properties of trimethoprim tin complexes and via characterizing their IR and NMR elemental analysis sensitivity. Material and methods: These complexes combin...

The human respiratory system can be infected with coronaviruses (CoVs), one of the families of viruses that can lead to symptoms ranging from mild to fatal. Seven genera of CVS have been identified as having human infection to date. The virus can spread as fine, liquid particles from the mouth or nose of an infected person when coughing, sneezing,...

Surface functionalization of PMMA by Aminolysis reaction was utilised along with the addition of inorganic photo stabilisers (Zn(II), Ni(II), Cu(II) and Co(II)) to enhance the photostability of PMMA under exposure to UV light. The new polymers were characterised via different spectroscopic techniques. In order to assess the effectiveness of the PMM...

The importance of polymeric additives has taken an important role in industrial technology and its development and the increase in the consumption period of industrial products, especially plastic products. Therefore, a different type of polymeric additive was used, which can be classified as another type of polymeric additive, where three types of...

One of the earliest manufactured and most frequently used resins is phenol formaldehyde (PF) resin. Even with lesser loadings, their characteristics can be enhanced by the addition of nano-ZnO. The novel PF/ZnO Nanocomposites synthesis by ultrasonic process. The optical properties of materials modified with wide-band gap semiconductor described via...

Many organic and medicinal chemists are interested in the coumarin compounds due to their potential for use in pharmaceuticals and other industries. Coumarin compounds are a significant class of biologically active chemicals. Here, we outline the steps forproducing coumarin derivatives quickly and effectively from commercially accessible substrates...

Many organic and medicinal chemists are interested in the coumarin compounds due to their potential for use in pharmaceuticals and other industries. Coumarin compounds are a significant class of biologically active chemicals. Here, we outline the steps for producing coumarin derivatives quickly and effectively from commercially accessible substrate...

The importance of polymeric additives has taken an important role in industrial technology and its development and the increase in the consumption period of industrial products, especially plastic products. Therefore, a different type of polymeric additive was used, which can be classified as another type of polymeric additive, where three types of...

This review focuses on organotin toxicity and its effect on human health. Organotins are utilized widely as anti-tumor, anti-inflammatory, anti-fungal, or antimicrobial agents in both agricultural and industrial applications. These materials are more toxic than inorganic cans which are poorly absorbed and are excreted on the surface of the can, whi...

Poly(dimethylsiloxane) (PDMS) sponges are an emergent technology, garnering much attention in recent years due to their unique mechanical properties, high surface area and hydrophobicity/oleophilicity. In this work, a hydroscopic calcium chloride hard template is used to prepare a PDMS sponge in 6 h, faster than previously reported template removal...

The purpose of this application is to see whether or not it is cost-effective to insulate the base of ordinary houses, made of load-bearing masonry. Certainly, the isolation of the base is suitable for structures of high importance, as well as historical monuments, but the common man does not live in a structure of high importance. Is the solution...

Soft ionic hydrogels have garnered significant interest for their applications in soft electronics and tissue engineering. However, further demands are still on the rise for developing these materials to possess flexibility, durability, low cost, non-toxic and reliable conductivity. In this work, a poly(acrylamide) (PAAm) hydrogel containing salt w...

Light-driven water-splitting to generate hydrogen and oxygen from water is typically carried out in an electrochemical cell with an external voltage greater than 1.23 V applied between the electrodes. In this work, we examined the use of a concentration/chemical bias as a means of facilitating water-splitting under light illumination without the ne...