This paper reports the photo-catalytic activity and stability of Lignocellulose/TiO2nanoparticles (NPs) was evaluated through using the decomposition of methylene blue (MB) as a testing model reaction under visible light irradiation (λmax> 420nm). The modified (NPs) (pH = 6.94 - 6.97) photocatalyst material was dried for 24 hours at the temperature of 80°C and calcinated at 400°C for 2 hours through constant air flow. The degradation of MB was performed using 250 Watt xenon lamp within...
In this study, the adsorption of Acetic acid from an aqueous solution is investigated using activated charcoal prepared from Bitter leaf (Vernonia amygdalina) that is activated by tap water. Carbonizations at different activation temperature with constant flow of air are used to examine for accepted accessibility of sorbent material. The optimum conditions obtained from this batch adsorption experiments highest adsorption capacity is recorded at activation temperature=400°C, contact ti...
Determination of various chemical nutrients present within food samples using green nanomodifed carbon paste working electrode (GNM-CPWE) is a novel and cost-effective technique. In addition, wastewater treatment in the presence of high surface area green nanocatalysts attracts researchers worldwide. In the present study, zinc oxide nanoparticles (ZnO NPs) were synthesized by using Acanthus sennii leaf extract within three volume ratios as 2:3 (40 mL precursor: 60 mL extract), 1:1 (50 mL ...
The involvement and development of intelligent polymers in enzymes as a catalyst have been interesting to develop processes that are environmentally benign, energy efficient, and selective towards their specific molecular applications. Polypyrrole based enzyme nanocomposites represents a continuous considerable redox organic polymer that have been increased in electromechanical devices in advance for surface functionalization. This review addresses the fundamental concepts of poly...
In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized using an aqueous extract of the Ocimum lamifolium (O.lamifolium) plant. The I optimal coordinate exchange random response surface methodology (RSM) was used to optimize the effect of the zinc acetate precursor, temperature, and time on ZnO NPs by designing nine runs. From ANOVA analysis, the significance and validity of the designed models showed that the optimal values of the zinc acetate precursor, temperature, and time d...
Non-renewable energy sources produced from natural coal and oil may result in climate change and global warming as greenhouse gases are to the environment. This is why the main utilization of energy sources on renewable and alternate green energy to deliver power. Thus, a microbial fuel cell device is one of the cost-effective and environmentally friendly energy conversion devices that uses renewable organic wastes as fuel source and converts this stored chemical energy in to useful b...
Fingerprint (FP) is a global mark used for personal identification. This study reviews recent latent fingerprint (LFP) enhancement techniques including metal oxides, multi-metal deposition (MMD-I/II/SMD/Au-ASP), optical, chemical, physical, and physicochemical. Furthermore, analytical techniques involved in identification, evaluation, and determination of pieces of evidence, and perpetrators including the SEM, TEM, UV-Vis, IR/NIR, SERS, SKP, DLS, MALDI-MSI, and TD analysis were also dis...
Highly active antiretroviral therapy (HAART) is known to cause lipid abnormalities such as dyslipidaemia in HIV-infected individuals. Yet, dyslipidaemia may not independently occur as it may be worsened by single nucleotide polymorphisms (SNPs) in lecithin cholesterol acyltransferase (LCAT) and lipoprotein lipase (LPL). This case–control study was conducted in three-selected hospitals in the Northern part of Ghana. The study constituted a total of 118 HIV-infected participants aged 19–71 ...
This study aimed to develop predictive models from percutaneous femoral (PFL) and ulna (PUL) lengths for estimating height among a living Ghanaian population. This was a cross-sectional study involving 99 adults (males=52, females=47) between the ages of 19–31yrs. The height, femoral and ulnar lengths of all participants were measured twice using standard anthropometric methods. Regression predictive equation models were developed based on PFL, PUL, age and the combined PFL+PUL. p < 0.05 wa...
The study aimed to determine the relationship between digit ratios among a mother–child population in Ghana. This was a cross-sectional study from December 2020 to April 2021 involving 272 mothers, their daughters (n= 132) and their sons (n= 140). The right (2D:4DR) and the left (2D:4DL) digit ratios were measured using computer-assisted analysis. The data were analysed in SPSS (v23) and GraphPad Prism (v8) at an alpha value of 0.05. The mean±SD age of the mothers was 23.9 ± 3.67 years wh...
Objectives: Postpartum hematological and anthropometric assessment is a requirement for optimal maternal and child health. The study aimed to determine the relationship between the 2D:4D ratio and postpartum hematological and anthropometric variables in adult females. Methods: The study was cross-sectional from December 2020 to April 2021 involving 272 postpartum adult females, aged between 18 and 36 years. The right (2D:4DR) and the left (2D:4DL) digit ratios were measured using computer-ass...
Objectives: The 2D:4D ratio is influenced by prenatal testosterone (PT) and estrogen (PE) exposure in utero. This study sought to determine whether evidence of Manning's hypothesis can still be observed even in the postpartum period. We hypothesize that the offspring 2D:4D ratios will be inversely correlated with maternal postpartum circulating testosterone but positively correlated with estradiol. Methods: This study was conducted between December 2020 and April 2021 and was cross-sectional ...
The effect of a fire disaster is greater in developing countries due to inadequate 'firefighting preventive and support systems. There is therefore the need to analyze fire incident data to enable better fire safety and prevention strategies. The study was a retrospective cross-sectional study from January to June 2021. In all, 130 fire incident reports from 2017 to 2020 were collected. The data, consisting of 32 variables were analyzed using binary logistic regression. It was observed that f...
Sex estimation models form a vital part in Forensic human identification but they are usually population-specific. This study aimed to develop and test sex estimation models for a Ghanaian population using percutaneous lengths of the femur (FL) and ulna (UL). The study was cross-sectional from June to July 2020, involving 99 adults (male: 52, females: 47), aged between 19 and 31years. The lengths of the femur and ulna were measured using standard anthropometric techniques. All measurements we...
Objectives: The 2D:4D ratio is the putative marker of prenatal androgen exposure. Low maternal 2D:4D ratio has been associated with high or male-biased secondary sex ratio. Hitherto, there has not been any study in Ghana regarding the maternal 2D:4D ratio and sex ratio at birth. This study sought to investigate this observation in a Ghanaian population. Method: The study was cross-sectional from December 2020 to April 2021 involving 272 first-time mothers. The mean ± SD age of the mothers wa...