2008
DOI: 10.1016/j.ijpharm.2008.07.023
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Top-down production of drug nanocrystals: Nanosuspension stabilization, miniaturization and transformation into solid products

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Cited by 635 publications
(336 citation statements)
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“…Recently, for the purpose of formulation development, there has been a marked interest to downscale the production of nanosuspensions, at the preformulation stage and during late discovery when drug availability is scarce [10,11]. At the early stage of development, less than 100 mg of the compound is typically available [5].…”
Section: Introductionmentioning
confidence: 99%
“…Recently, for the purpose of formulation development, there has been a marked interest to downscale the production of nanosuspensions, at the preformulation stage and during late discovery when drug availability is scarce [10,11]. At the early stage of development, less than 100 mg of the compound is typically available [5].…”
Section: Introductionmentioning
confidence: 99%
“…В связи с этим основ-ным способом увеличения эффективности многих лекарственных препаратов является повышение их растворимости в воде. В последние годы с развити-ем новых технологий получения нано-и микроча-стиц как систем доставки лекарственных средств все больше внимания привлекают методы микрониза-ции и нанонизации нерастворимых веществ, позво-ляющие перевести их в частицы микро-и нанораз-мера, что позволит повысить растворимость лекар-ственных веществ и их проницаемость через барье-ры тканей [2,3].…”
Section: низкая растворимость низкая проницаемостьunclassified
“…Методы микронизации и нанонизации можно разделить на две основные категории: подход, назы-ваемый «сверху-вниз» (top-down), основанный на измельчении вещества в растворе с последующей гомогенизацией под давлением; и «снизу-вверх» (bottom-up), основанный на преципитации веще-ства в неводных растворах с последующим испаре-нием и конденсацией микрочастиц [2][3][4]. Методы «сверху-вниз» микронизации и нанонизации вклю-чают измельчение вещества под давлением в раз-личных типах мельниц с последующей фильтрацией через сито с размером пор около 25 мкм [5].…”
Section: методы микронизации и нанонизацииunclassified
“…However, since nanocrystals have a strong tendency to agglomerate, stabilizers must be used to cover the particle surfaces. One disadvantage of a nano-suspension is particle growth due to Ostwald ripening, which can occur during processing, storage, and handling of suspensions (11)(12)(13)(14). Apart from solubility and stability considerations, patient compliance must be considered (12,15): whereas oral administration with intestinal absorption is the most patient-friendly method of drug delivery, nano-suspensions are typically delivered parenterally (10).…”
Section: Introductionmentioning
confidence: 99%
“…Thus, in order to develop a preferred solid dosage form, the nano-suspension must be transformed into a solid product, presenting additional challenges. Five products (Rapamune®, Emend®, TriCor®, Megace®ES, and Triglide™ (13,16)) produced via nanoparticle technology are currently available in the market, of which four are based on the media milling technique (Elan NanoCrystal® technology (13,14,16)). The remaining one (Triglide™) is manufactured using high-pressure homogenization (DissoCubes®, SkyePharma PLC (17)) and requires several steps, including freeze-drying, spray-drying, spray coating, and pelletizing or granulation, to convert the nanoparticles in a solid powder (18) for compaction into tablets or filling into capsules.…”
Section: Introductionmentioning
confidence: 99%