Raphael Johnson
The researcher's work is centered on a diverse range of topics at the intersection of pharmaceutical chemistry, biopharmaceutical sciences, and food science. Their research spans key areas such as the application of polysaccharides like polycarboxylates in drug delivery systems, the role of plant cell walls in scaffolding materials, essential oils' properties in antimicrobial applications, and advancements in understanding cucurbitaceae bioactive compounds. These themes are interconnected, with each contributing to broader investigations into natural compounds, analytical techniques, policy impacts, and food composition. The researcher's work highlights a commitment to understanding both traditional and emerging strategies in drug delivery, plant-based ingredients, and the properties of essential natural components, reflecting a holistic approach to advancing pharmaceutical science.
Faculty Biography
Raphael Johnson (PhD) is a Senior Lecturer at the Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences. He obtained his Bachelor of Pharmacy degree in 2002 and Master of Pharmacy in Pharmaceutics in 2006 from the Kwame Nkrumah University of Science and Technology. He obtained his doctorate in Biopharmaceutics and Pharmaceutical Technology from Johannes Gutenberg Universität, Mainz, Germany under Government of Ghana/DAAD scholarship. He is a member of the Pharmaceutical Society of Ghana. He has several publications in peer-reviewed journals and conference proceedings.
Advanced Drug Delivery Systems
Advances in Cucurbitaceae Research
African Botany and Ecology Studies
Analytical Methods in Pharmaceuticals
Anorectal Disease Treatments and Outcomes
Banana Cultivation and Research
Biosimilars and Bioanalytical Methods
Climate Change, Adaptation, Migration
Drug Solubulity and Delivery Systems
Energy and Environment Impacts
Essential Oils and Antimicrobial Activity
Fatty Acid Research and Health
Food composition and properties
Inhalation and Respiratory Drug Delivery
Nanoparticle-Based Drug Delivery
Opioid Use Disorder Treatment
Pharmaceutical Economics and Policy
Pharmaceutical Quality and Counterfeiting
Pharmacological Effects of Natural Compounds
Phytochemistry and Bioactivity Studies
Polysaccharides and Plant Cell Walls
Polysaccharides Composition and Applications
Proteins in Food Systems
Formulation and evaluation of topical gels containing Phyllanthus muellerianus leaf extract using various gelling agents
Open AccessPain Management and the Opioid Policy Landscape in Sub-Saharan Africa: A Systematic Review of Access, Regulation, and Health Governance from 1990 to 2024
Open AccessPharmaceutical evaluation of plantain peel pectin as a disintegrant in conventional tablets
Open AccessSweet Potato Peel Pectin's Potential as a Suspending Agent in Pharmaceutical Formulations: The Effect of Extraction Technique
Open AccessExtraction and Comparative Assessment of the Physicochemical Properties of Pectin From Four Fruit Wastes in Ghana
Open AccessEvaluation of the Physicochemical and Micromeritic Properties of Exudate Gum of Cussonia arborea Stem Bark in Conventional Tablet Formulation
Open AccessInvestigating the Presence of Falsified and Poor-Quality Fixed-Dose Combination Artemether-Lumefantrine Pharmaceutical Dosage Forms in Kumasi, Ghana
Open AccessEffect of Ripening and Extraction Method on the Physicochemical Properties of Pectin Extracted from Peels of Apem and Apantu Plantain Cultivars in Ghana
Open AccessDevelopment of the RP-HPLC Method for Simultaneous Determination and Quantification of Artemether and Lumefantrine in Fixed-Dose Combination Pharmaceutical Dosage Forms
Open AccessBiogenic Waste from Two Varieties of Plantain in Ghana Contain Pectin with Potential Binding Properties in Conventional Tablets
Open AccessInvestigation of the binding properties of purified Pentadesma butyracea gum: Anatural alternative to a synthetic polymer
Open AccessPharmaceutical Assessment of the Impact of the Method of Extraction on the Suitability of Pectin from Plantain (Musa paradisiaca) Peels as a Suspending Agent in Oral Liquid Formulations
Open AccessThe Consumption of Energy Drink and Its Potential Effect on Sleep Patterns: A Case Study in the Kumasi Metropolis
Open AccessPhysicochemical and Microbiological Characteristics of Stem Bark Exudate Gum of Cordia millenii Tree in Conventional Release Tablets
Open AccessThe Impact of the Extraction Method on Allanblackia floribunda Butter’s Physicochemical Properties as a Possible Pharmaceutical Excipient
Open AccessBioequivalence studies of cetirizine tablets using the urine excretion data of healthy Ghanaian male volunteers
Open AccessFormulation and Evaluation of Herbal‐Based Antiacne Gel Preparations
Open AccessInvestigation of the physicochemical properties of freeze-dried fruit pulp of Telfairia occidentalis and its potential use as suspending agent
Open AccessQuality and Safety Assessment of Omega-3 Fatty Acids Supplements on the Ghanaian Market
Pharmaceutical Assessment of Melia azedarach Gum as a Binder and Disintegrant in Immediate-Release Tablets
Open AccessPharmaceutical Assessment of Watermelon Rind Pectin as a Suspending Agent in Oral Liquid Dosage Forms
Open AccessThe Effect of the Method of Extraction on the Physicochemical Properties of Allanblackia Floribunda Butter as a Potential Pharmaceutical Excipient
Open AccessFormulation of Suppositories of Alum Produced from Bauxite Waste in Ghana for the Treatment of Hemorrhoid
Open AccessContents
Open AccessComparison of the physicochemical properties and in vivo bioavailability of generic and innovator artemether-lumefantrin tablets in Kumasi, Ghana
Open AccessTarget Nanoparticles for Therapy - SANS and DLS of Drug Carrier Liposomes and Polymer Nanoparticles
Open AccessRule of Engagement: How to Impact Culture & Climate in 30 Days
Fasted-State Simulated Intestinal Fluid "FaSSIF-C", a Cholesterol Containing Intestinal Model Medium for In Vitro Drug Delivery Development
Amphotericin B nano-formulations : development, characterisation and suitability for oral administration
Open AccessNanoparticle structure development in the gastro‐intestinal model fluid FaSSIF<sub>mod6.5</sub> from several phospholipids at various water content relevant for oral drug administration
Amphotericin B microparticles ‘AmbiShell’ from phospholipid and gelatin: Development and investigation by combined DLS and SANS resolves the core‐shell structure
Untitled
Open AccessDepartment of Pharmaceutics
Kwame Nkrumah University of Science and Technology