http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍삼 내 ginsenosides의 경구용 제제 개발을 위한 전략수립
연원기,조정원 충남대학교 약학대학 의약품개발연구소 2013 藥學論文集 Vol.28 No.-
Ginsenosides saponins are phytochemically extracted from red ginseng, and have been regarded as the principal components manifesting the pharmacologic activities. Saponins are very soluble in water but poorly absorbed when administrated orally. Moreover, they have some disadvantages including the decomposition in acid medium. Therefore various designs and techniques have been studied for development of optimal formulation and modification of release profile. This review focused on pH-response polymer and bioadhesive polymer considering the low stability in acid medium and the low permeability in mucosal membrane of saponins. The application of these polymers are considered as potential strategy for improvement of bioavailability in oral delivery of saponins.
이초아,이경록,조정원 충남대학교 약학대학 의약품개발연구소 2014 藥學論文集 Vol.29 No.-
Skin whitening products are commercially available for cosmetic purposes in order to obtain a lighter skin appearance. They are also utilized for clinical treatment of pigmentary disorders such as melasma or postinflammatory hyperpigmentation. Whitening agents act at diverse levels of melanin synthesis in the skin. Many of them are known as competitive inhibitors of tyrosinase, the key enzyme in melanogenesis. Others inhibit the transformation of this activated enzyme or the transport of melanosomes from melanocytes to surrounding keratinocytes. To avoid systemic absorption, whitening agent is need to create optimal formulation such as liposome, microemulsion, solid lipid nanoparticles (SLN) and NLC (Nanostructure liquid crystal) as well as patch. Functional ingredients and innovative delivery systems are driving the new product development in the field of cosmetics. In this review we present an overview of whitening products that may decrease skin pigmentation by their interference with the pigmentary processes and may formulate cosmetic delivery systems possessing potential as smarter carrier systems.
손백락,김동출,조정원 충남대학교 약학대학 의약품개발연구소 2008 藥學論文集 Vol.23 No.-
Despite the advantages of drug delivery through the skin, such as easy accessibility, convenience, prolonged therapy, avoidance of the liver first-pass metabolism and a large surface area, transdermal drug delivery is only used with a small subset of drugs because most compounds cannot cross the skin at therapeutically useful rates. Recently, a new concept was introduced known as microneedles and could be pierced to effectively deliver drugs using microsized needles in a minimally invasive and painless manner. This review suggests that a biocompatible microneedle might be a suitable tool for transdermal drug delivery system of hydrophilic molecules with possible applications to macromolecules such as proteins and peptides.
황우신,황성주,박정숙,조정원 충남대학교 약학대학 의약품개발연구소 2012 藥學論文集 Vol.27 No.-
Nanotechnology affects on various aspects including medicine and pharmaceutics. This nanocrystal technology which transforms to nano-sized material is able to develop the innovational formulation strategy for poorly water-soluble drugs due to the change of physicochemical properties of drug. Scale-up methods using pearl milling or high pressure homogenizer was described and commercialized products based on nanotechnology were introduced in this manuscript.
마이크로니들의 형태 및 적용방법이 약물의 피부 투과에 미치는 영향
임지호,이경록,이은주,조정원 충남대학교 약학대학 의약품개발연구소 2012 藥學論文集 Vol.27 No.-
The purpose of this study is to develop the microneedle using biodegradable and biocompatible polymer and to pioneer the new route of drug delivery through the research to apply the most desirable administration form of small molecules, peptides, proteins, genes, biological products including vaccines. Various biocompatible microneedles were manufactured. To apply drug to microneedle, drug formulation using ethylene vinyl acetate patch or polyacryl acid gel was developed. Drug permeation into rat skin based on the application method of patch or gel with microneedle was studied using Franz diffusion cell system. In vitro drug permeation results showed that the permeation by the application of hollow microneedle was not increased compared with solid microneedle. When G60 or G60*2 microneedle was used, the permeated amount of calcein was increased compared to when solid microneedle was used. The permeated amount of lidocaine HCl in 12 hr was increased when microneedle was used was increased. Skin irritation followed by microneedle showed there was little difference in the decrease of redness after microneedle application based on application time.
Fe^(+)³과의 혼합물을 이용한 알렌드로네이트의 흡광도 변화
송지근,남진경,조정원 충남대학교 약학대학 의약품개발연구소 2009 藥學論文集 Vol.24 No.-
Alendronate, one of bisphosphonates is widely used in the clinical treatment of systemic metabolic diseases, such as osteoporosis and Paget's disease as well as the sequela of malignancies including hypercalcemia. However, alendronate has no chromophore, so the method of derivatization with FMOC(9-fluorenylmethyl chloroformate) in a citrate buffer(pH 11.9) using HPLC was developed. In this study, we developed UV-VIS spectrophotometric assays for availability, simplicity and cost-effectiveness of the required instrumentation. The stoichiometric ratio of alendronate to Fe^(+3) in the chromophoric complex was determined to be 1:1.
금창구,서재석,남진경,이은주,조정원 충남대학교 약학대학 의약품개발연구소 2010 藥學論文集 Vol.25 No.-
Paclitaxel (PTX) is an anti-cancer agent extracted from the bark of the Pacific yew (Taxus brevifolia). In clinical trials, PTX has demonstrated significant activity against a variety of tumors such as drug-resistant ovarian cancer, metastatic breast cancer, non-small cell lung cancer and AIDS related Kaposi's sarcoma. However, the bioavailability of PTX is mainly limited by cytochrome P450 activity in gut wall and liver, and drug transporters, such as P-gp in gut wall and liver. As well as, PTX is very poor soluble in water (<0.5 mg/L) and other pharmaceutically acceptable solvents. The commercial formulation of PTX consists of micellar solution of the drug in cremophor EL (polyoxyethylated castor oil) containing 50% absolute ethanol. However, it is well known that the use of cremophor EL is associated with hypersensitivity reactions, neurotoxicity and nephrotoxicity and also the solubility of PTX is increasing with the addition of citric acid. Therefore, this study is to optimize the mixing order of individual components for stabilized paclitaxel injection.
약물전달체로서의 고분자 미셀의 특징 및 고분자 미셀을 이용한 제품
김준배, 손진영, 이은주, 조정원 충남대학교 약학대학 의약품개발연구소 2017 藥學論文集 Vol.32 No.-
The amphiphilic block copolymers forms the self -assembled micelles in aqueous solution. that is called as polymeric micelle. Polymeric micelles as drug delivery carriers can protect the drug against bio-logical environments (eg. low pH. enzymes). allow drug ellcapsulation in the hydrophobic inner center. in-crease the solubility of hydrophobic drugs). facilitate drug targeting. and reduce the side effects of chemotherapy. Another advantage is that polymeric micelles can prolong the circulation time of the drug us-ing the ligand for the specific target because the surface properties of the drug delivery system affect the circulation time in the blood and are related to the life span of the drug delivery system. Recent advances in the properties and application of polymeric micelles as drug delivery carriers for poorly soluble drug have been discussed in this review.