Abstract

A tissue imaging system includes a laser module for outputting a laser pulse, an optical delay module configured to split a laser pulse received from the laser module into a plurality of time-delayed sub-pulses, a telescope for delivering the sub-pulses from the optical delay module to a target volume and a photodetector configured to collect photons generated within the target volume in response to excitation of the target volume by the first and second sub-pulses. The system may further include a spatial multiplexing module configured to receive the temporally multiplexed laser pulse from the optical delay module and splitting the temporally multiplexed laser pulse into a plurality of sub-beams including a first sub-beam and a second sub-beam, wherein the first sub-beam and the second sub-beam are spatially separated with respect to a first image plane formed at a first depth within the target volume and with respect to a second image plane formed at a second depth within the target volume.

IPC Classes  ?

• G01N 21/63 - Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
• G01N 21/64 - Fluorescence; Phosphorescence
• H01S 3/067 - Fibre lasers

Abstract

The present disclosure provides a DNA-targeting RNA that comprises a targeting sequence and, together with a modifying polypeptide, provides for site-specific modification of a target DNA and/or a polypeptide associated with the target DNA. The present disclosure further provides site-specific modifying polypeptides. The present disclosure further provides methods of site-specific modification of a target DNA and/or a polypeptide associated with the target DNA The present disclosure provides methods of modulating transcription of a target nucleic acid in a target cell, generally involving contacting the target nucleic acid with an enzymatically inactive Cas9 polypeptide and a DNA-targeting RNA. Kits and compositions for carrying out the methods are also provided. The present disclosure provides genetically modified cells that produce Cas9; and Cas9 transgenic non-human multicellular organisms.

IPC Classes  ?

• C12N 15/11 - DNA or RNA fragments; Modified forms thereof
• C07K 19/00 - Hybrid peptides
• C12N 5/10 - Cells modified by introduction of foreign genetic material, e.g. virus-transformed cells
• C12N 15/63 - Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression