摘要:
클로즈드백하우징(102), 외이도를음향적으로밀봉하기위한슬리브(108), 및정전형변환기(214)를가지는정전형이어폰이제공된다. 클로즈드백하우징은외이도를향한음향의음향적전송을위한노즐(106)을포함할수 있고슬리브(108)는노즐(106)에분리가능하게부착될수 있다. 정전형변환기(214)는전도층을갖는다이아프램(308), 고정자판들(304A, 304B), 및다이아프램(308)의전도층과전기적으로접촉된다이아프램고리들(402A, 402B)을포함할수 있다. 고정자판들(304A, 304B)은외부환형전도부및 중심전도부를포함할수 있다. 외부환형부는바이어스전압및 다이아프램고리들(402A, 402B)과전기적으로접촉될수 있다. 중심전도부는유전층을가질수 있고, 오디오신호와전기적으로접촉될수 있다. 고정자판들(304A, 304B) 및다이아프램(308)은다이아프램고리들(402A, 402B)에의해서로떨어져있을수 있다. 증폭기는이어폰에바이어스전압과오디오신호를제공할수 있다.
摘要:
본 발명은 약물의 경피 전달을 위한 제형 및 이의 제조방법에 관한 것이다. 보다 상세하게는 생체 적합성, 생분해성 및 경피 전달 특성을 갖는 전달체를 이용함으로써 백신을 비롯한 다양한 단백질 의약품 및 화학 의약품의 경피 약물 전달 시스템에 적용 가능하고, 인체에 안전하게 적용할 수 있으며, 또한 단백질의 생체 활성도를 최대화한 상태로, 생접합 효율이 높고, 약효 시간을 증대할 수 있는 경피 전달용 약물 전달체의 제조방법 및 이에 의해 제조된 경피 전달용 약물 전달체 및 이의 용도에 관한 것이다.
摘要:
Provided is a starch-vegetable oil graft copolymer, which has excellent processability and mechanical properties, and produces a composite suitable for injection molding into biodegradable articles when reinforced with biofiber. The biodegradable starch-vegetable oil graft copolymer composition comprises: granular starch; vegetable oil or a derivative thereof containing a modifier reactive to the starch; and a hydroxylated plasticizer. The granular starch includes corn starch, potato starch, tapioca starch, rice starch, wheat starch, cassava starch or high-amylose corn starch. The starch is present in an amount of 5-90 wt% based on the total weight of the composition.
摘要:
The present invention relates to a method of producing a hydroxyalkyl starch derivative, said hydroxyalkyl starch having a structure according to formula (I) comprising reacting - hydroxyalkyl starch o formula (I) at its optionally oxidized reducing end or - a hydroxyalkyl starch derivative, obtainable by reacting hydroxyalkyl starch of formula (I) at its optionally oxidized reducing end with a compound (D), said compound (D) comprising - at least one functional group Z1 capable of being reacted with the optionally oxidized reducing end of the hydroxyalkyl starch, and at least one functional group W, with a compound (L) comprising at least one functional group Z1 capable of being reacted with said hydroxyalkyl starch, or at least one functional group Z2 capable of being reacted with functional group W comprised in said hydroxyalkyl starch derivative, and at least one functional group X capable of being reacted with a functional group Y of a further compound (M), wherein said functional group Y is selected from the group consisting of an aldehyd group, a keto group, a hemiacetal group, an acetal group, and a thio group. The present invention further relates to the hydroxyalkyl starch derivatives as such ans a pharmaceutical composition comprising the hydroxyalkyl starch derivatives.
摘要:
PURPOSE: A hemoglobin substitute and a preparation method thereof are provided, which has half life more than 15 hours when administered to human and no toxicity. CONSTITUTION: The hemoglobin substitute is free from tetramer, stroma and any toxic contaminating material, polymerized and pyridoxylated. Also the hemoglobin substitute is free from white blood cells and platelets. Preferably the hemoglobin substitute is glutaraldehyde-polymerized hemoglobin. The hemoglobin substitute is prepared by removing white blood cells and platelets from a blood; washing and performing the lysis of blood red cells; removing stroma and stroma contaminating material by filtration and heating; preparing hemoglobin in oxygen-free state; pyridoxylating and polymerizing it; purifying and concentrating it further; and deoxygenizing it at about 10-12°C to make the content of oxyhemoglobin below about 16 wt% based on the weight of the total hemoglobin.
摘要:
광가교된실크피브로인을제조하는방법및 그에의해제조된광가교된실크피브로인에관한것이다. 상기방법에의하면, 실크피브로인을저분자화하여안정성을향상시킬수 있고, 광중합성모노머로활성화된실크피브로인을합성할수 있으며, 상기광중합성모노머로활성화된실크피브로인으로부터물성및 생체안전성이우수한실크피브로인히드로겔을제조할수 있다. 또한, 제조된광가교된실크피브로인은의료용생체재료, 화장료등 생체적합성이요구되는히드로겔소재분야에다양하게응용될수 있다.