Jerry Opoku-Ansah

ORCID: 0000-0002-9780-6072
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About
Contact & Profiles
Research Areas
  • Spectroscopy and Chemometric Analyses
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Identification and Quantification in Food
  • Essential Oils and Antimicrobial Activity
  • Digital Imaging for Blood Diseases
  • Malaria Research and Control
  • Computational Drug Discovery Methods
  • Optical Imaging and Spectroscopy Techniques
  • Connexins and lens biology
  • Bee Products Chemical Analysis
  • Analytical Methods in Pharmaceuticals
  • Photoacoustic and Ultrasonic Imaging
  • Edible Oils Quality and Analysis
  • Infrared Thermography in Medicine
  • Silymarin and Mushroom Poisoning
  • Cultural Heritage Materials Analysis
  • Water Quality Monitoring and Analysis
  • Pharmaceutical Quality and Counterfeiting
  • Listeria monocytogenes in Food Safety
  • Dyeing and Modifying Textile Fibers
  • Microbial Inactivation Methods
  • Natural product bioactivities and synthesis
  • Metabolomics and Mass Spectrometry Studies
  • Mosquito-borne diseases and control
  • Synthesis and bioactivity of alkaloids

University of Cape Coast
2016-2025

The potential of predicting maturity using total soluble solids (TSS) and identifying organic from inorganic pineapple fruits based on near-infrared (NIR) spectra fingerprints would be beneficial to farmers consumers alike. In this study, a portable NIR spectrometer chemometric techniques were combined simultaneously identify organically produced conventionally ones (thus inorganic) also predict solids. A 90 intact scanned with the while digital refractometer was used measure TSS extracted...

10.1155/2019/5975461 article EN cc-by Journal of Spectroscopy 2019-08-06

Laser-induced fluorescence (LIF) combined with multivariate techniques has been used in identifying antimalarial herbal plants (AMHPs) based on their geographical origin. The AMHP samples were collected from four origins (Abrafo, Jukwa, Nfuom, and Akotokyere) the Cape Coast Metropolis, Ghana. LIF spectra data recorded samples. Utilizing techniques, a training set for first two principal components of was modeled through use K-nearest neighbor (KNN), support vector nachine (SVM), linear...

10.1364/josaa.396701 article EN Journal of the Optical Society of America A 2020-07-21

<p class="1Body">Malaria parasites, <em>Plasmodium falciparum</em> (<em>P.falciparum</em>) infections are taking a great toll on the lives of people worldwide, especially in developing countries. Recently, haemozoin detection using optical techniques tends to provide comparable parasite densities (PDs) estimation. We conducted feasibility studies <em>P.falciparum</em> infected blood (<em>i</em>-blood) and uninfected...

10.5539/apr.v8n2p43 article EN Applied Physics Research 2016-03-03

Laser-induced autofluorescence (LIAF), combined with multivariate techniques, has been used to discriminate a cataractous lens from healthy tissues. In this study, 405 nm and 445 were as excitation sources induce the autofluorescence. Results show higher intensity in tissues than ones. Cataractous red shift of 0.9 1.2 at excitations, respectively. Using principal component analysis (PCA), three components (PCs) gave more 99% variability for both sources. Based on PCs, Fisher’s linear...

10.1364/josaa.394555 article EN Journal of the Optical Society of America A 2020-06-26

Cataracts are the leading cause of blindness worldwide. Current methods for discriminating cataractous lenses from healthy Sprague-Dawley rats during preclinical studies based on either histopathological or clinical assessments which weakened by subjectivity. In this work, both and lens tissues were studied using multispectral imaging technique in combination with multivariate analysis. Multispectral images captured transmission, reflection scattering modes. all, five spectral bands found to...

10.4236/ojbiphy.2017.73011 article EN Open Journal of Biophysics 2017-01-01

Color is essential for the fashion and art of fabrics, with its retention being a quality measure great significance brand user. The colorfastness some metallic fabrics has been established using absorption spectroscopy, by determining quantity dye that bled after undergoing wash laundry processes. Two ( X Y ) washing detergents (liquid powdered) were used. washed GyroWash machine set normal (40°C) hot (60°C) durations 60 min 90 min. There was repeat second wash. wastewater each (sample)...

10.1155/jspe/2632412 article EN cc-by Journal of Spectroscopy 2024-01-01

Multi-spectral imaging (MSI) has made diagnosis of microscopic samples considerably easier and information abound. Most MSI systems use continuum light sources filters for purposes. However, these are relatively expensive, unstable due to extreme pressure temperature associated with prolong acquisition time. In this work, we present a metallurgical microscope retrofitted light-emitting diodes (LEDs) as illumination microscopy. This multispectral LED (MSLEDIM) is cheaper capable acquiring...

10.5539/mas.v11n9p30 article EN Modern Applied Science 2017-08-07

Laser-induced fluorescence in combination with multivariate analysis as a simple, rapid and non-destructive method for classifying anti-malarial herbal plants is presented. A suitable alternative that enhances safety objectivity.

10.1364/fio.2017.jtu2a.71 article EN Frontiers in Optics 2017-01-01

Shelf life of bottled natural fruit juice (BNFJ) provides relevant information on quality and authenticity for consumer protection. However, existing techniques monitoring the shelf BNFJ are destructive time-consuming. We report using laser-induced autofluorescence (LIAF) spectroscopic technique in combination with multivariate analysis BNFJ. The LIAF spectra data were acquired nine (9) continuous days three batches samples purchased from a certified retailer. Deconvolution revealed...

10.1155/2023/7458190 article EN cc-by International Journal of Optics 2023-04-29

Plasmodium falciparum ( P. ) malarial degree of infection, termed as parasite density (PD), estimation is vital for point-of-care diagnosis and treatment the disease. In this work, we present application optical techniques: absorption multispectral imaging byproduct (hemozoin) detection in human‐infected blood samples to estimate PD. The were collected from volunteers who tested positive infections i -blood), after treatment, another set u -blood) also taken. -blood grouped based on PD (+,...

10.1155/2019/8782567 article EN cc-by International Journal of Optics 2019-11-11
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