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List of works by Josias H. Hamman

Absorptive and Secretory Transport of Selected Artemisinin Derivatives Across Caco-2 Cell Monolayers

Aloe vera gel and whole leaf extract: functional and versatile excipients for drug delivery?

scientific article published on 05 October 2019

Amorphous azithromycin with improved aqueous solubility and intestinal membrane permeability

scientific article

Beneficial Pharmacokinetic Drug Interactions: A Tool to Improve the Bioavailability of Poorly Permeable Drugs

scientific article published on 26 July 2018

Capsaicin and Piperine as Functional Excipients for Improved Drug Delivery across Nasal Epithelial Models

scientific article published on 24 July 2019

Cell-free DNA in a three-dimensional spheroid cell culture model: A preliminary study

scientific article

Chitosan based polyelectrolyte complexes as potential carrier materials in drug delivery systems

scientific article published on 19 April 2010

Chitosan-polycarbophil complexes in swellable matrix systems for controlled drug release

scientific article published in October 2007

Chitosan-polycarbophil interpolyelectrolyte complex as a matrix former for controlled release of poorly water-soluble drugs I: in vitro evaluation

scientific article

Chitosan-polycarbophil interpolyelectrolyte complex as an excipient for bioadhesive matrix systems to control macromolecular drug delivery

scientific article published on 01 January 2008

Combination therapy of Western drugs and herbal medicines: recent advances in understanding interactions involving metabolism and efflux.

scientific article published on 22 May 2012

Combining Chemical Permeation Enhancers for Synergistic Effects

scientific article published on 5 May 2015

Composition and applications of Aloe vera leaf gel.

scientific article published on 08 August 2008

Cross-linked cationic polymer microparticles: effect of N-trimethyl chitosan chloride on the release and permeation of ibuprofen

scientific article published in March 2005

Direct compression of chitosan: process and formulation factors to improve powder flow and tablet performance

scientific article published on 01 June 2013

Drug Bioavailability Enhancing Agents of Natural Origin (Bioenhancers) that Modulate Drug Membrane Permeation and Pre-Systemic Metabolism

scientific article published on 16 January 2019

Effect of oral contraceptives on the transport of chlorpromazine across the CACO-2 intestinal epithelial cell line

scientific article published on September 2003

Effect of sinomenine on the in vitro intestinal epithelial transport of selected compounds.

scientific article published in February 2010

Effect of the degree of quaternisation of N-trimethyl chitosan chloride on absorption enhancement: in vivo evaluation in rat nasal epithelia

scientific article published in January 2002

Effect of the type of base and number of reaction steps on the degree of quaternization and molecular weight of N-trimethyl chitosan chloride

scientific article published in May 2001

Effects of dietary fruits, vegetables and a herbal tea on the in vitro transport of cimetidine: comparing the Caco-2 model with porcine jejunum tissue

scientific article published on 01 February 2012

Efflux as a mechanism of antimicrobial drug resistance in clinical relevant microorganisms: the role of efflux inhibitors

scientific article published on 28 November 2016

Eudragit® L100/N-trimethylchitosan chloride microspheres for oral insulin delivery.

scientific article published on 7 June 2013

Evaluation of the mucoadhesive properties of N-trimethyl chitosan chloride

Excipient-drug pharmacokinetic interactions: Effect of disintegrants on efflux across excised pig intestinal tissues.

scientific article published on 13 February 2018

Excipients with specialized functions for effective drug delivery ⬇️

scientific article published on December 23, 2011

Herb-Drug Pharmacokinetic Interactions: Transport and Metabolism of Indinavir in the Presence of Selected Herbal Products.

scientific article published on 10 December 2015

Herb-drug pharmacokinetic interactions reviewed.

scientific article

Hoodia gordonii: an up-to-date review of a commercially important anti-obesity plant.

scientific article published on 21 January 2011

Impact of traditional African medicine on drug metabolism and transport

scientific article

Impact of traditional medicinal plant extracts on antiretroviral drug absorption

scientific article published on 2 July 2008

In Vitro Drug Absorption Enhancement Effects of Aloe vera and Aloe ferox ⬇️

scientific article published on April 1, 2012

In Vivo skin hydration and anti-erythema effects of Aloe vera, Aloe ferox and Aloe marlothii gel materials after single and multiple applications.

scientific article

In vitro drug permeation enhancement potential of aloe gel materials

scientific article published in May 2012

In vitro evaluation of the cytotoxic and apoptogenic properties of aloe whole leaf and gel materials

scientific article published on 11 October 2013

In vitro permeation of mesembrine alkaloids from Sceletium tortuosum across porcine buccal, sublingual, and intestinal mucosa. ⬇️

scientific article

In vitro transport of the steroidal glycoside P57 from Hoodia gordonii across excised porcine intestinal and buccal tissue.

scientific article

Intestinal Drug Absorption Enhancement by Gel and Whole Leaf Extract: In Vitro Investigations into the Mechanisms of Action

scientific article published on 18 January 2019

Intestinal drug absorption enhancers: synergistic effects of combinations

scientific article published on 01 December 2008

Intestinal drug transport enhancement by Aloe vera

scientific article published on 12 February 2009

Intestinal paracellular permeation enhancement with quaternised chitosan: in situ and in vitro evaluation

scientific article

Investigating the effect of Aloe vera gel on the buccal permeability of didanosine

scientific article published on 12 December 2011

Isolation and in vitro permeation of phenylpropylamino alkaloids from Khat (Catha edulis) across oral and intestinal mucosal tissues

scientific article

Matrix polymeric excipients: comparing a novel interpolyelectrolyte complex with hydroxypropylmethylcellulose

scientific article published on 01 February 2008

Models used to screen for the treatment of multidrug resistant cancer facilitated by transporter-based efflux

scientific article published on 10 July 2019

Moulded cross-linked chitosan matrix systems for controlled drug release

scientific article published on 09 March 2010

N-trimethyl chitosan chloride: optimum degree of quaternization for drug absorption enhancement across epithelial cells

scientific article published in February 2003

Natural products in anti-obesity therapy.

scientific article published on 07 July 2011

Novel non-invasive protein and peptide drug delivery approaches

scientific article

Oral delivery of peptide drugs: barriers and developments.

scientific article

Paracellular drug absorption enhancement through tight junction modulation

scientific article

Physicochemical Stability of Enriched Phenolic Fractions of Cyclopia genistoides and ex vivo Bi-directional Permeability of Major Xanthones and Benzophenones

scientific article published on 03 November 2020

Polymeric plant-derived excipients in drug delivery.

scientific article published on 16 July 2009

Recent advances in three-dimensional cell culturing to assess liver function and dysfunction: from a drug biotransformation and toxicity perspective

scientific article published on 3 January 2018

Recent developments in our understanding of the implications of traditional African medicine on drug metabolism

scientific article published on 21 December 2017

Review of natural compounds for potential skin cancer treatment.

scientific article published on 06 August 2014

The Role of Functional Excipients in Solid Oral Dosage Forms to Overcome Poor Drug Dissolution and Bioavailability

scientific article published on 25 April 2020

Topical Delivery of Withania somnifera Crude Extracts in Niosomes and Solid Lipid Nanoparticles

scientific article published on 11 October 2017

Toxicity and anti-prolific properties of Xysmalobium undulatum water extract during short term exposure to two-dimensional and three-dimensional spheroid cell cultures.

scientific article

Transport of aspalathin, a Rooibos tea flavonoid, across the skin and intestinal epithelium.

scientific article

Treatment of Skin Disorders with Aloe Materials

scientific article published on 01 January 2019

Wound Healing Effects of Aloe muth-muth: In Vitro Investigations Using Immortalized Human Keratinocytes (HaCaT)

scientific article published on 23 October 2020

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