Thermo Scientific No-Weigh 产品是可提供预分装规格的特殊试剂。预称重的包装可消除重复开瓶和关盖,从而防止随时间推移试剂反应性的降低和污染。对于这种规格,可每次使用一小瓶新鲜试剂,消除了对少量试剂进行称重的麻烦,并减少了对试剂稳定性的担忧。 EDC 的特点: ...
Depending on the material they consist of, nanoparticles can possess a number of different properties such as high electron density and strong optical absorption (e.g. metal particles, in particular Au), photoluminescence in the ... More Extensive terminal and asymmetric processing of small RNAs ...
密度Density0.877 g/mL at 20 °C(lit.) 蒸汽压 Vapor Pressure 溶解度SolubilitySoluble in water (>200 mg/ml), ethanol, DMF, alcohol, and methanol. 性状White solid 储藏条件 Storage conditions20°C,Unstable in solution. Reconstitute just prior to use. ...
EINECS:247-361-2Molecular Formula: C8H18CLN3Boiling Point: 269.1 °C at 760 mmHgFlash Point: 107.9 °CRefractive index: n20/D 1.461Density: 0.877?g/mL?at 20?°C(lit.)Appearance: white to off-white powderSafety Statements: S26;S37/39Transport: OTH View More...
2.B科室使用抗菌药物总DDDS=150g/1.5(阿莫西林胶囊)+300g/3g(注射用阿莫西林)+50g/0.5g(左氧氟沙星)=300DDD 3.全院使用抗菌药物总DDDS=211+300=511DDD 05 AUD AUD:抗菌药物使用强度(Antibiotics Use Density),以平均每日每百张床位所消耗抗菌药物的DDDs表示,通俗点就...
processes for the probe immobilization.18,19 In parallel, grafting methods in milder conditions have also been developed in order to reduce the number of processing steps,20 but approaching the maximum packing density at the surface21 by using such roomtemperature conditions remains a difficult ...
When the bacterial colony reaches a threshold density, the QS system induces the production of virulence factors and the formation of biofilms, a powerful defence system against the host's immune responses. The glucosamine monomer has been shown to disrupt the bacterial QS system by inhibiting ...
medium. The cell density was adjusted to 1 ×10 4 cells·ml −1 , and 2 ml of cell suspension was added to each dish. The cells were then allowed to attach to the matrices and remained undisturbed in a humidified incubator (37 ◦ C and 5% CO 2 ) Figure 1. Chemical reactions...
We find a mean air content of 0.0815 mlSTP/g, which corresponds to a mean firn density of 0.838 g/cm3 at pore close-off. The profile exhibits long term variations of about 10%; these are not dominated by the 100ka cycle but instead by the 42 k...
This is because increased PL not only enhanced the crosslinking density but also lowered the stiffness of the polymer network. These effects were opposite to the improvement of mechanical property, respectively. Thus, the optimal PL/PGA molar ratio proportion was 0.2. In case of an increase in ...