Search Results - "Gröning, R"

Development of sensor elements to control drug release from capsular drug delivery systems by Gröning, R., Danco, I., Müller, R.S.

“…The objective of this study was to develop a capsular drug delivery system, which releases the drug when a sensor element is activated by gastrointestinal…”
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Control of drug release from capsules using high frequency energy transmission systems by Gröning, R., Bensmann, H., Müller, R.S.

“…In the present investigations new drug delivery systems have been developed, which are controlled by a computer and a high frequency energy transmission…”
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Development and in vitro evaluation of expandable gastroretentive dosage forms based on compressed collagen sponges by Gröning, R, Cloer, C, Müller, R S

“…The objective of this study was to develop and evaluate new collagen gastroretentive dosage forms (GRDFs) which expand in the stomach after contact with…”
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Interactions between aqueous Hypericum perforatum extracts and drugs: in vitro studies by Muller, R.S, Breitkreutz, J, Groning, R

“…Physico‐chemical interactions between drugs and plant extracts can result in the formation of nanoparticles, microparticles and precipitates. The extraction…”
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New constituents of Piper guineense fruit and leaf by Adesina, S K, Adebayo, A S, Adesina, S K O, Gröning, R

“…Fourteen compounds were isolated from the fruits and leaves of Piper guineense Schum and Thonn (Piperaceae). Two of those were regarded to be new natural…”
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At-home sampling to meet geographical challenges for serological assessment of SARS-CoV-2 exposure in a rural region of northern Sweden, March to May 2021: a retrospective cohort study by Byström, Julia Wigren, Vikström, Linnea, Rosendal, Ebba, Gröning, Remigius, Gwon, Yong-Dae, Nilsson, Emma, Sharma, Atin, Espaillat, Akbar, Hanke, Leo, McInerney, Gerald, Puhar, Andrea, Cava, Felipe, Karlsson Hedestam, Gunilla B, Thunberg, Therese, Monsen, Tor, Elgh, Fredrik, Evander, Magnus, Johansson, Anders F, Överby, Anna K, Ahlm, Clas, Normark, Johan, Forsell, Mattias Ne

“…BackgroundThe current SARS-CoV-2 pandemic has highlighted a need for easy and safe blood sampling in combination with accurate serological methodology…”
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GC/MS investigations of the minor constituents of Piper guineense stem by Adesina, S K, Adebayo, A S, Adesina, S K O, Gröning, R

“…Chemical investigations by GC/MS-analysis of stem extracts of Piper guineense resulted in the detection and identification of thirty-nine new constituents of…”
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Development of experimental insulin pumps with glucose-controlled release by Gröning, Rüdiger, Walz, Christian

“…In the present investigation, experimental insulin pumps have been developed in which the release of insulin is governed by the glucose concentration. The…”
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Acyclovir serum concentrations following peroral administration of magnetic depot tablets and the influence of extracorporal magnets to control gastrointestinal transit by Gröning, Rüdiger, Berntgen, Michael, Georgarakis, Manolis

“…In the present investigations peroral acyclovir depot tablets with internal magnets were developed. An extracorporal magnet was used to prolong the gastric…”
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Development of biologically-controlled insulin pumps with glucose-dependent release by Gröning, R, Walz, C

“…An experimental insulin pump has been developed in which living microorganisms are used to measure glucose concentration and to produce the energy required to…”
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Experimental and molecular modeling studies on interactions between drugs and Eudragit® RL/RS resins in aqueous environment by HEUN, G, LAMBOV, N, GRÖNING, R

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Physico-chemical interactions between extracts of Hypericum perforatum L. and drugs by Gröning, R, Breitkreutz, J, Müller, R.S

“…The aim of the present study was to investigate physico-chemical interactions between extracts of Hypericum perforatum L. and drugs. The formation of…”
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Pulsed release of nitroglycerin from transdermal drug delivery systems by Gröning, R, Kuhland, U

“…To achieve a discontinuous drug delivery to the skin a new actively controlled transdermal system has been developed. The system consists of a tube shaped drug…”
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Structure and barrier property of acrylatemethacrylate film coating in aspirin microcapsules by Eichie, F. E., Okor, R. S., Groning, R.

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Formation of particles in aqueous infusions of the medical plant Harungana madagascariensis by Gröning, R, Adesina, S, Müller, R S

“…In some aqueous plant extracts the formation of nanoparticles, microparticles and macroparticles has been observed. In the present investigation the particle…”
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The pharmacokinetics of a long-acting OROS hydromorphone formulation by Turgeon, J, Gröning, R, Sathyan, G, Thipphawong, J, Richarz, U

“…New formulations of opiods can provide round-the-clock pain relief to improve pain management and quality of life for patients with chronic pain. Information…”
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Encapsulation of drugs and excipients in liposomes--measurements with drug-specific electrodes by Gücer, N, Ebel, J, Gröning, R

“…In this study, the degree of encapsulation of benzalkonium chloride in liposomes was quantitatively measured using a potentiometric membrane electrode specific…”
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Application of solubility parameters to the formulation of acrylate methacrylate film coating systems by Eichie, F. E., Okor, R. S., Groning, R.

“…In order to optimize the formulation of the acrylate methacrylate (AMA) coating systems, the partial solubility parameters of AMA and those of various coating…”
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Nanoparticles in plant extracts--factors which influence the formation of nanoparticles in black tea infusions by Gröning, R, Breitkreutz, J, Baroth, V, Müller, R S

“…The influence of different factors on the formation of nanoparticles in freshly brewed tea extracts was investigated. A black tea infusion was observed during…”
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Estimation of the gastric residence time of magnetic dosage forms using the Heidelberg capsule by Groning, R, Berntgen, M

“…A new method for determining the gastrointestinal transit of magnetic dosage forms under the influence of an extracorporal magnet has been developed. A…”
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