摘要:
This invention provides nanocrystals or polymer doped nanocrystals of hydrophobic drug molecules as stably dispersed in an aqueous system which are prepared without stabilizers like surfactants and the like. In one embodiment, the drug is a tetra-pyrrole compound. An example is the hydrophobic photosensitizing anticancer drug 2-devinyl-2-(l - hexyloxyethyl) pyropheophorbide (HPPH). Pharmaceutical compositions comprising nanocrystals or polymer doped nanocrystals of hydrophobic drugs can be used for therapeutic purposes. For example pyropheophorbides such as HPPH can be used for photodynamic therapy. Drug efficacy of these nanocrystals were found to be comparable with that of same drug formulated in conventional delivery vehicles under in vitro and in vivo conditions.
摘要:
A composition comprising PAA nanoparticles containing a post loaded tetrapyrollic photosensitizer and an imaging agent and methods for making and using same.
摘要:
A system according to the invention may include a frame, a computer, a display, and two input devices. The frame may be adjustable, may be made from a lightweight material, and may fold for easier portability. The display and the computer may be in communication with each other and each may be attached to the frame. The display may be a binocular display, or may be a touchscreen display. Additional displays may be used. Two input devices may be used to simulate the master console of a surgical robot. The input devices may be articulated armature devices suitable for providing 3D input. The input devices may be attached to the frame in an "upside-down" configuration wherein a base of each input device is affixed to the frame such that a first joint of an arm is below the base. The input devices may be in communication with the computer and may provide positional signals to the computer. The positional signals may correspond to a position of an arm of each input device.
摘要:
The present invention discloses a peptide of SEQ ID NO: 1 and its variants that blocks stretch-activated ion channels. All amino acids in this peptide are D-amino acids. The peptide, designated as D-GsMTx4, is an enantiomer of a peptide GsMTX-4 present in the venom of the spider Grammostola spatulata. The present invention also discloses a method for inhibition of stretch activated ion channels in a cell. This peptide can be used for the treatment of cardiac arrhythmias and other pathologies that involve alteartions in mechanical stress.
摘要翻译:本发明公开了SEQ ID NO:1的肽及其延伸活化离子通道的变体。 该肽中的所有氨基酸都是D-氨基酸。 称为D-GsMTx4的肽是存在于蜘蛛Grammostola spatulata的毒液中的肽GsMTX-4的对映异构体。 本发明还公开了抑制细胞中拉伸活化离子通道的方法。 该肽可用于治疗心律失常和其他涉及机械应激中的alteartions的病态。
摘要:
The present invention provides a method for imaging a biological specimen using non-linear optical properties of certain materials. The method comprises the steps of providing an aqueous dispersion of ZnO nanocrystals; contacting a biological specimen with an aqueous dispersion comprising ZnO nanocrystals; exposing the biological specimen to input electromagnetic radiation having a wavelength of from 600 to 1500 nm; recording the nonlinear output electromagnetic radiation; and generating an image of the biological specimen based on the nonlinear output radiation.
摘要:
Provided are chalcogenoxanthylium compounds which can effectively be used as sensitizers in photodynamic therapy, virucides in photodynamic antimicrobial chemotherapy and reversal agents of Pgp function in cancer cells. Further provided is a general method for the preparation of chalcogenoxanthylium compounds.