摘要:
A novel system and method for charge-monitoring mass spectrometry is provided. The mass spectrometer can be used to measure the mass of one or more analytes having masses in the range of about a few Daltons to more than about 1015 Daltons. The invention can be used for rapid mass distribution measurements. For example, the system and method can be used to distinguish cancer cells from normal cells when their mass distributions are different.
摘要:
A novel system and method for charge-monitoring mass spectrometry is provided. The mass spectrometer can be used to measure the mass of one or more analytes having masses in the range of about a few Daltons to more than about 1015 Daltons. The invention can be used for rapid mass distribution measurements. For example, the system and method can be used to distinguish cancer cells from normal cells when their mass distributions are different.
摘要:
Methods for detecting the presence of nanoparticles or microparticles by cell mass spectrometry (CMS) are provided. CMS methods are provided for determining the number of nanoparticles or microparticles in each cell. Nanoparticles whose intracellular concentration can be determines by the CMS methods of the invention include polymeric nanoparticles (NPs), liposomes, viral-based NPs, carbon nanotubes, diamond NPs, polymeric micelles, nanocarriers, liposomes, and viral nanoparticles. Determination of the efficiency of drug delivery and intracellular titer of pathogens according to the invention is disclosed. Methods for determining intracellular uptake of virus particles are provided.
摘要:
A disk magazine for accessing Compact Disks includes a bottom stage, a vertical shaft fixed and supported at the bottom stage, a prop-up piece being loaded with Compact Disks and having an opening through which the vertical shaft extends, a barrel tightly combined with the bottom stage at the lower end, and a lid tightly covering up the upper side of the bottom stage. The lid is provided with a fixing hole into which the tapering tip pole of the vertical shaft inserts, and two O-rings are used for sealing between the lid and barrel, as well as between the bottom stage and barrel respectively to prevent the disk magazine from the environmental contamination.