The ESI of high-mass biopolymers produces an envelope of multiply charged ions of proteins, the deconvolution of which gives the accurate molecular mass of the target protein. MALDI produces a simpler spectrum that contains mainly the singly protonated ion. Direct mass measurement of proteins from ...
1.1.9.1 Molecular weight A polymer's molecular weight is the sum of the atomic weights of individual atoms that comprise a molecule. It indicates the average length of the bulk resin's polymer chains. All polymer molecules of a particular grade do not all have the exact same molecular weight...
better removal effect of HPAM among the non-ion, amphoteric ion and hydrophobical cation polymers, especially the DMDAAC cationic polymer has an optimal result. The removal capacity to HPAM can be further improved by using appropriate molecular weight and cationic capacity and gas floatation ...
NBD chloride and NBD fluoride are extensively used as derivatization reagents for chromatographic analysis of amino acids and other low molecular weight amines. The absorption and fluorescence emission spectra, quantum yields and extinction...
while the other two conformations cannot reach the pore constriction to initiate a translocation.gSimulated cumulative ion currents through the pore at the open pore (green), the arm-down (gray), the stem-down (red), the loop-down (blue), and the tRNA translocation (purple) state. The ext...
of the membrane (Fig.1g). It has been documented that the discontinuity of TM helices could play pivotal roles in transporters and ion channels by creating substrate-binding sites or providing flexible gating hinges26,27,28,29,30. On the other hand, the EM densities of the intracellular loop...
The other physical method, ion-exchange resin separation, takes advantage of the difference in protein chargeability (Shi et al., 2019b). Cation and anion resins can withhold negatively charged and positively charged proteins, respectively. This method will not destroy the protein and can ...
Method of preparation of substituted new products of high molecular weight, in particular of the ion exchangersA substituted, high molecular weight product which forms a gel in water of limited swelling capacity is prepared by reacting swollen gel grains of a copolymerizate of a polyhydroxy ...
select article Effect of CdSe/ZnS quantum dots doping on the ion transport behavior in nematic liquid crystal Research articleAbstract only Effect of CdSe/ZnS quantum dots doping on the ion transport behavior in nematic liquid crystal Aysha Rani, Susanta Chakraborty, Aloka Sinha Article 117327 Articl...
1.A keratin hydrolyzate comprising protein fragments, wherein at least 30% of the protein fragments present have a molecular weight of less than 1000 Da. 2.The keratin hydrolyzate according to claim 1, wherein at least 35% of the protein fragments present have a molecular weight of less than...