摘要:
Systems and methods are disclosed for evaluating the length of elongated elements in a sample. The disclosed systems and methods may include using a direct current stimulus to determine a direct current base length region corresponding to at least a portion of the sample. Furthermore, the disclosed systems and methods may include using an alternating current stimulus to determine that the direct current base length region corresponds to a first set of elongated elements and a second set of elongated elements. The first set of elongated elements may have a first base length and the second set of elongated elements may have a second base length. The elongated elements may comprise, for example, chain molecules, deoxyribonucleic acid (DNA), ribonucleic acid (RNA), or proteins. Furthermore, the disclosed systems and methods may include measuring an ion current through a nanopore, the ion current produced by the alternating current stimulus.
摘要:
Systems and methods are disclosed for evaluating the length of elongated elements in a sample. The disclosed systems and methods may include using a direct current stimulus to determine a direct current base length region corresponding to at least a portion of the sample. Furthermore, the disclosed systems and methods may include using an alternating current stimulus to determine that the direct current base length region corresponds to a first set of elongated elements and a second set of elongated elements. The first set of elongated elements may have a first base length and the second set of elongated elements may have a second base length. The elongated elements may comprise, for example, chain molecules, deoxyribonucleic acid (DNA), ribonucleic acid (RNA), or proteins. Furthermore, the disclosed systems and methods may include measuring an ion current through a nanopore, the ion current produced by the alternating current stimulus.
摘要:
The present invention relates to the modification of the internal surfaces of zeolite crystals via treatment with alcohols containing at least four carbon atoms. The modified zeolites possess high thermal stability and the properties of the modified zeolites can be tailored to provide improved performance for use in separations processes.
摘要:
The growth of continuous MOF membranes on porous polymeric supports is reported, wherein a dip-coating procedure is used to deposit a layer of seed MOF nanocrystals on the surfaces of porous polymers, preferably in the form of hollow fibers, and polycrystalline MOF membranes are subsequently grown at temperatures as low as 65° C. from precursor solutions. The present work opens the road to inexpensive and scalable fabrication of MOF membranes for large-scale separation applications.
摘要:
This invention relates to a method for characterizing the pores of reticulated framework structures and using these characteristics to predict the actual performance characteristics of the reticulated framework structures as membranes for gas separation, and other purposes.
摘要:
This invention relates to a method for characterizing the pores of reticulated framework structures and using these characteristics to predict the actual performance characteristics of the reticulated framework structures as membranes for gas separation, and other purposes.
摘要:
DDR nanocrystals of uniform size and structure were synthesized using hydrothermal secondary growth and then used to make DDR zeolite membranes and for any other use where uniform, small DDR zeolite crystals are beneficial.
摘要:
The present invention discloses a nanocomposite material having single-walled aluminosilicate nanotube in polymer, a membrane comprising such nanocomposite material, and the method of making the nanocomposite material, in which the composite material has high volume fraction of well-dispersed nanotubes. A gel-phased single-walled aluminosilicate nanotube is first prepared and then mixed with a polymer matrix to yield the composite material.
摘要:
The present invention relates to a high-pressure quartz crystal microbalance sensor that is capable of measuring adsorption and diffusion characteristics of nanoporous materials and thin films at high pressures.