相关产品推荐更多 >
万千商家帮你免费找货
0 人在求购买到急需产品
- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
常温
- 保质期:
根据瓶身LOT号查询
- 英文名:
Chitosan
- 库存:
有现货
- 供应商:
浙江羽翔生物科技有限公司
- CAS号:
9012-76-4
- 规格:
50G
属性
形式
powder
分子量
50,000-190,000 Da (based on viscosity)
粘度
20-300 cP, 1 wt. % in 1% acetic acid(25 °C, Brookfield)(lit.)
溶解性
dilute aqueous acid: soluble
InChI
1S/C56H103N9O39/c1-87-56(86)65-28-38(84)46(19(10-74)96-55(28)104-45-18(9-73)95-49(27(64)37(45)83)97-39-12(3-67)88-47(85)20(57)31(39)77)103-54-26(63)36(82)44(17(8-72)94-54)102-53-25(62)35(81)43(16(7-71)93-53)101-52-24(61)34(80)42(15(6-70)92-52)100-51-23(60)33(79)41(14(5-69)91-51)99-50-22(59)32(78)40(13(4-68)90-50)98-48-21(58)30(76)29(75)11(2-66)89-48/h11-55,66-85H,2-10,57-64H2,1H3,(H,65,86)/t11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23-,24-,25-,26-,27-,28-,29-,30-,31-,32-,33-,34-,35-,36-,37-,38-,39-,40-,41-,42-,43-,44-,45-,46-,47-,48+,49+,50+,51+,52+,53+,54+,55+/m1/s1
InChI key
FLASNYPZGWUPSU-SICDJOISSA-N
应用
特点和优势
外形
风险提示:丁香通仅作为第三方平台,为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全,合理判断,谨慎选购商品,商家和用户对交易行为负责。对于医疗器械类产品,请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验Antifungal activity of different molecular weight chitosans against planktonic cells and biofilm of Sporothrix brasiliensis.
Sporotrichosis, caused by Sporothrix schenckii complex species, is the most prevalent subcutaneous mycosis in many areas of Latin America. Chitosan has been used as an antifungal agent; however the effects of the molecular weight (MW) of chitosan (i.e. high (HMW), medium (MMW) and low (LMW) molecular weight chitosan) on S. brasiliensis has not been well described, particularly on biofilms. Effects on the planktonic form activity of S. brasiliensis were quantified by broth microdilution, while anti-biofilm activity was quantified by measuring metabolic activity via XTT (2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-5-[(phenylamino)carbonyl]-2H-tetrazolium hydroxide and biomass formation (crystal violet). The molecular weight of chitosan modulated its effect on the planktonic form of S. brasiliensis, presenting lower MIC values for LMW chitosan. With regards both the adhesive and mature phases of biofilm, the LMW chitosan reduced biomass and metabolic activity most effectively. This study confirms the effects of the molecular weight and deacetylation degree of chitosan on its antifungal properties for potentially pathogenic fungi.
实验76 花粉活力的测定 通过花粉活力的测定,可以了解花粉的可育性,并掌握不育花粉的形态、生理特征。 Ⅰ.碘—碘化钾染色测定法 原理 水稻正常花粉呈圆球形,并积累淀粉较多,通常可用I—KI染成蓝色。发育不良的花粉常呈畸形,不积累淀粉,用I—KI染色,不呈蓝色,而呈黄褐色。 仪器药品 显微
更换此电泳缓冲液。6、1.2%的甲醛变性胶:称0.4克琼脂糖,加入3.34 ml 10×FA gel buffer,加入30 ml DEPC水,微波炉融化,肉眼观察无颗粒状悬浮物。冷却至约50-60℃,再加入600 l甲醛,倒入7.5×5.0 cm的凝胶模具中。插入合适长度和宽度的梳子,室温放置约30min后即可使用。三、实验方法一般取0.3 g的总RNA,加入1/5体积的5×加样缓冲液,65℃加热5 min,冰上骤冷,以消除RNA的二级结构。建议上样前在RNA样品中加入0.5-1.0 ul的溴化
相关专题 提取样品的总RNA后,一般根据RNA的凝胶电泳 图来判断RNA的质量。由于RNA容易形成二级结构,因此常用甲醛变性胶来进行RNA电泳,得到的电泳图能真实反映RNA的质量状况。 一、试剂: DEPC(Sigma公司产品),MOPs(Bocherigmer公司产品),甲酰胺(Formamide,Sigma公司产品),溴酚蓝(Bromphenol Blue,Sigma公司产品)。EDTA -Na2,氢氧化钠,醋酸钠,甲醛
技术资料暂无技术资料 索取技术资料









