title: Pharmaceutical applications of AC biosusceptometry.
abstract: AC Biosusceptometry offers an alternative to investigate noninvasively and without ionizing radiation the behavior of solid dosage forms in vitro and in the human gastrointestinal tract. This versatility allowed applying this technique in a wide field ranging from characterization of the disintegration process to elucidation of how the physiological parameters can interfere with pharmaceutical processes. It is increasingly important to understand how oral solid dosage forms behave in the human gastrointestinal tract. Once labelled, magnetic dosage forms provide an excellent opportunity to investigate complexes' interactions between dosage form and gastrointestinal physiology. In this paper, basic principles of this biomagnetic instrumentation and of the quantification based on magnetic images are reviewed. Also will be presented are some of the most recent applications of AC Biosusceptometry in the pharmaceutical research including oesophageal transit, gastric emptying and transit time of multiparticulate dosage forms, hydrophilic matrices and disintegration of tablets.
authors.affiliation: Department of Physics and Biophysics, IBB, Sao Paulo State University, Botucatu, SP, Brazil. lacora@ibb.unesp.br
authors.forename: Luciana A
authors.initials: LA
authors.lastname: Corá
authors.forename: Madileine F
authors.initials: MF
authors.lastname: Américo
authors.forename: Fernando G
authors.initials: FG
authors.lastname: Romeiro
authors.forename: Ricardo B
authors.initials: RB
authors.lastname: Oliveira
authors.forename: José Ricardo A
authors.initials: JR
authors.lastname: Miranda
mesh_terms: D000284:Administration, Oral; D000818:Animals; D002626:Chemistry, Pharmaceutical / Q000379:methods; D004304:Dosage Forms; D055590:Electromagnetic Phenomena; D005769:Gastrointestinal Motility; D041981:Gastrointestinal Tract / Q000502:physiology; D006801:Humans; D007408:Intestinal Absorption; D015336:Molecular Probe Techniques / Q000295:instrumentation; D004364:Pharmaceutical Preparations / Q000737:chemistry* / Q000378:metabolism*; D010599:Pharmacokinetics; D012995:Solubility
chemical_list: D004304:Dosage Forms; D004364:Pharmaceutical Preparations