摘要:
A frequency agile gyrotron for use in combination with an NMR system is disclosed. The frequency agile gyrotron combined with EPR-NMR magic angle spinning resonators and cryogenic sample cooling may increase the sensitivity of solid state NMR with DNP.
摘要:
Polypeptides are disclosed comprising, in N-terminal-to-C-terminal order: an N-terminal segment of Ad5 fiber tail sequence; at least 2 pseudorepeats of an Ad5 fiber shaft domain sequence; a portion of a third Ad5 fiber shaft domain sequence; a carboxy-terminal segment of a T4 fibritin bacteriophage trimerization domain sequence; a linker sequence; and a camelid single chain antibody sequence. A camelid single chain antibody sequence can be against a human carcinoembryonic antigen. Also disclosed are nucleic acids encoding these polypeptides, and adenovirus vectors comprising the polypeptides. Methods are disclosed for treating a neoplastic disease. These methods can comprise administering an adenovirus vector comprising a disclosed polypeptide. Also disclosed are methods of targeting a vector to CEA-expressing cells. These methods comprise administering an adenovirus vector comprising a disclosed polypeptide. Methods can further comprise subjecting a subject to ionizing radiation in an amount effective for inducing CEA overexpression.
摘要:
Methods and compositions for treating cancers such as pancreatic cancer and synovial sarcoma are disclosed. Compounds comprising a sigma-2 receptor-binding moiety and a ferroptosis-inducing moiety are described. At least one described molecular species exhibits an IC 50 value below 5 μΜ against human pancreatic cancer cells in vitro. Administration of this species promoted shrinkage of pancreatic cancer tumors in a murine model system in vivo, and led to 100% survival of experimental animals over a time course in which control therapies provided only 30% or 40% survival. Methods of synthesis of molecular species are also disclosed.
摘要:
Disclosed are PARP-1 inhibitors, which can be 18 F-labeled for use as tracers in positron emission tomographic (PET) imaging. Further disclosed are methods of synthesis. Of the compounds synthesized, 2-[p-(2-Fluoroethoxy)phenyl]-1.3.10-triazatricyclo[6.4.1.0 4,13 ]trideca-2,4(13),5,7-tetraen-9-one (12) had the highest inhibition potency for PARP-1 (IC 50 = 6.3 nM). Synthesis of [ 18 F]-12 is disclosed under conventional conditions in high specific activity with 40-50% decay-corrected yield. MicroPET imaging using [ 18 F]-12 in MDA-MB-436 tumor-bearing mice demonstrated accumulation of [ 18 F]-12 in a tumor. Binding can be blocked by olaparib. The compounds have utility for tumor imaging.
摘要:
A respiratory-gated photoacoustic computed tomography system is disclosed that includes a respiratory motion sensor operatively coupled to a photoacoustic computed tomography system. The respiratory motion sensor monitors respiratory motion of a subject by measuring changes in the levels of a coupling fluid within which the subject is immersed.
摘要:
Systems and methods for hyperspectral analysis of cardiac tissue are provided. In some embodiments, a method for visualizing ablation lesions includes illuminating at one or more illumination wavelengths a surface of tissue having an ablation lesion; collecting a spectral data set comprising spectral images of the illuminated tissue acquired at multiple spectral bands each at one or more acquisition wavelengths; distinguishing between the ablation lesion and an unablated tissue based on one or more spectral differences between the ablation lesion and unablated tissue; and creating a composite image of the tissue showing the ablation lesion and the unablated tissue.
摘要:
Systems and methods for focusing a light pulse within a focus area using nonlinear photoacoustic wavefront shaping (PAWS) are disclosed herein. The method includes modulating a spatial phase pattern of a light pulse's waveform based on a Grueneisen-relaxation photoacoustic (GR-PA) feedback signal. In addition, systems and methods for performing Grueneisen-relaxation photoacoustic microscopy (GR-PAM) are disclosed herein that include analyzing photoacoustic signals resulting from illumination of a focus region by two closely spaced light pulses. A method of obtaining an absorption coefficient of a sample using Grueneisen-relaxation photoacoustic microscopy (GR-PAM) is also disclosed.
摘要:
The present invention encompasses methods to produce optically pure D-lactate that is substantially derived from CO 2 using a recombinant phototrophic microorganism.
摘要:
An electrical stimulation device provides stimulation of a person's claustrum to treat seizures for persons having epilepsy, The stimulation device includes a stimulator that generates a stimulation signal, and one or more electrodes located near the claustrum. The electrode receives the stimulation signal from said stimulator and imparts the stimulation signal to the claustrum,