Raphael Johnson is a lecturer at the department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences. He was born on December 26, 1973, at Obuasi in the Ashanti Region. He had his primary education at the then Ashanti Goldfield Primary School (now AngloGold Ashanti). He passed the Common Entrance Examination in 1987 and gained admission into the Obuasi Secondary Technical School (OSTS). He completed the General Certificate of Education (Ordinary Level) in 1992. He also completed the General Certificate of Education (Advanced Level) in 1994 at the same school. He furthered his studies at KNUST, where he obtained a bachelor of Pharmacy degree and Master of Pharmacy (Pharmaceutics), respectively.

Telephone:                   +233244585051

Email: rjohnson.pharm@knust.edu.gh/ ralph355@yahoo.com

 Education/Certificates

2012 – 2015    Doctor of Science (Pharmacy) - Johannes Gutenberg Universität, Mainz, Germany.

2007 -              Lecturer in Pharmaceutics, FPPS, CHS, KNUST, Kumasi, Ghana

2003 - 2006    Master of Pharmacy (Pharmaceutics)         -    KNUST, Kumasi

1998 - 2002    Bachelor of Pharmacy (Hons)                      -    KNUST, Kumasi

1992 - 1994    Advanced Level Certificate (WAEC)         -    OSTS, Obuasi

1987 - 1992    Ordinary Level Certificate (WAEC)           -    OSTS, Obuasi

1978 - 1987    Primary Education                                  - Ashanti Goldfields Primary School

RESEARCH INTERESTS

Innovative pharmaceutical formulations of Natural products.

Evaluation of pharmaceutical excipients of Natural Origin.

Pharmacokinetic studies of Natural products.

PUBLICATION(S)

Khoshakhlagh P., Johnson R., Nawroth T.,  Langguth P., Schmueser L., Decker H., Hellmann N., Szekely N. 2015. Fasted-state simulated intestinal fluid “FaSSIF-C”, a cholesterol containing intestinal model medium for in vitro drug delivery development. J. Pharm. Sci. Vol. 104, Issue 7, pp 2213–2224.

R. Johnson, M.T. Bayor, J. Adotey, 2011. Formulation and evaluation of herbal capsules of the extracts of Bridelia ferruginea leaf and Canthium glabriflorum stem bark. International Journal of Contemporary Research and Review, Vol 2 (1), pp 6 - 10.

M. T. Bayor, R. Johnson, S.Y. Gbedema, 2011. The Oral Capsule – The most appropriate dosage form for Croton Membranaceus. International Journal of Pharmaceutical Sciences and Research, Vol 2 (1), pp 55 – 62.

Yaa Asantewaa, K. Ofori Kwakye, S. L. kipo, Vivian Etsiapa Boamah and Raphael Johnson, 2011. Investigation of the emulsifying and suspending potential of Cashew tree gum in Pharmaceutical formulations. International Journal of Pharmacy and -Pharmaceutical Sciences, Vol 3, Issue 3, pp 215 – 219.

R. Johnson, M.T. Bayor, J. Adotey, K. Annan, 2010. Release profile of extracts of Bridelia ferruginea leaf and canthium glabriflorum stem bark from different absorbents. International Journal of Pharmaceutical Sciences and Research, Vol 1, 8 (suppl), pp 111 – 117.

Thomas Nawroth, Raphael Johnson, Pooneh Khoshakhlagh, Lidija Krebs, Karl Buch, Peter Langguth, Guenther Goerigk, Peter Boesecke, Alberto Bravin, Géraldine Le Duc, Noemi Szekely, Ralf Schweins. Target Nanoparticles for Therapy – SANS and DLS of Drug Carrier Liposomes and Polymer. Proceedings of 6th European conference on Neutron science, Zaragoza, Spain, 30th Aug – 4th September, 2015

Nawroth Thomas, Pooneh Khoshakhlagh, Raphael Johnson, Lidija Krebs, Peter Langguth, Noemi Szekely, Patrick Augustijns. Human intestinal fluids HIF, and FaSSIF-C, a cholesterol containing intestinal model fluid: Comparison and nano-structure by dynamic light scattering DLS and neutron scattering SANS. OrBiTo open science day, Chilly-Mazarin, France, 1st July, 2015.

Nawroth Thomas, Pooneh Khoshakhlagh, Raphael Johnson, Lidija Krebs, Sarah Kindgen, Regine Rach, Peter Langguth, Lars Schmueser, Nadja Hellmann, Heinz Decker, Tobias Schrader, Noemi Szekely. Nano-structure dynamics in gastro-intestinal models for drug delivery. International Conference on Surfaces and Colloid Science (IACIS), Mainz, Germany, 24th – 29th May, 2015.

T. Nawroth, P. Khoshakhlagh, S. Kindgen, L. Krebs, R. Johnson, P. Langguth, N. Szekely and R. Schweins., Gastro-Intestinal Simulator for in vitro Drug and Nanoparticle Tracing in Oral Drug Development. Deutsche Pharmazeutische Gesellschaft Annual meeting, Frankfurt, Germany, 24th – 26th September, 2014, p 81.

Khoshakhlagh P., Johnson R., Nawroth T.,  Langguth P., Schmueser L., Decker H., Hellmann N., Szekely N., Structural Dynamics of Novel Gastrointestinal Model Fluids by combined SANS and DLS . Deutsche Pharmazeutische Gesellschaft Annual meeting, Frankfurt, Germany, 24th – 26th September, 2014, p 194.