Described herein are compositions and methods for cancer cell biomarkers, such as pancreatic ductal adenocarcinoma (PDAC) cell biomarkers, and binding molecules for diagnosis and treatment of cancer, e.g., PDAC. Methods of identifying accessible proteomes are disclosed for identifying cancer biomarkers, such as plectin-1, a PDAC biomarker. Additionally, imaging compositions are provided comprising magnetofluorescent nanoparticles conjugated to peptide ligands for identifying PDACs.

Cyclic D,L--peptides were shown to have an anti-amyloid aggregation effect. The cyclic peptide (designated cyclic peptide-2) having the sequence [1JwHsK], had a drastic effect on amyloid aggregation. However, the linear equivalent of cyclic peptide-2 did not inhibit amyloid formation. Cyclic peptide 2 was also effective in reducing A-induced toxicity in PC12 cells. According to embodiments of the invention, cyclic peptides may comprise between 6 or 8 amino acids. In an embodiment, half of the amino acid residues are in the D-formation, and the other half are in the L-formation. In an embodiment of the invention, the amino acids alternate between the D and L-formations.

The present invention relates to a method of determining physical, chemical and/or biological state variables, particularly substance concentrations, temperature, pH and/or physical fields, and/or the change in these state variables in an examination area of an examination object by determining the change in the spatial distribution of magnetic particles in this examination area as a function of the effect of influencing variables on at least a partarea and/or in the conditions in at least a part-area of the examination area, by means of the following steps: a) introducing magnetic particles into at least part of the examination area in a first state in which in the examination area or in parts thereof at least some of the magnetic particles that are to be examined are agglomerated and/or coupled to one another in pairs or more, or introducing magnetic particles into at least part of the examination area in a second state in which the particles are deagglomerated and/or decoupled and can be agglomerated and/or coupled, b) generating a magnetic field with a spatial profile of the magnetic field strength such that there is produced in the examination area a first part-area having a low magnetic field strength and a second part-area having a higher magnetic field strength, c) changing the, in particular relative, spatial position of the two part-areas in the examination area or changing the magnetic field strength in the first part-area so that the magnetization of the particles is locally changed, d) detecting signals that depend on the magnetization in the examination area that is influenced by this change, and e) evaluating the signals so as to obtain information about the change in the spatial distribution of the magnetic particles and/or about physical, chemical and/or biological state variables or the change therein in the examination area. The invention further relates to magnetic particle compositions, in particular functionalized magnetic particle compositions and their use in a method according to the invention. The invention further also relates to an apparatus for the measurement of state variables in the examination area.

Disclosed are magnetic and fluorescent nanoassemblies having reverse architectures. Especially, the nanoassemblies include an organic fluorescent inner core and magnetic nanoparticles contacting the surface of the fluorescent core. The nanoassemblies may further be coated by a polymer adsorbed at its surface, the polymer being optionally functionalized. Also described is a process for manufacturing the nanoassemblies, as well as use of the nanoassemblies, especially for multimodal imaging; in vitro and/or in vivo diagnostics through multimodal imaging; ex vivo sensing and/or extraction; and/or therapy.

The present invention is directed generally to eukaryotic cells comprising single-celled organisms that are introduced into the eukaryotic cell through human intervention and which transfer to daughter cells of the eukaryotic cell through at least five cell divisions, and methods of introducing such single-celled organisms into eukaryotic cells. The invention also provides methods of using such eukaryotic cells. The invention further provides single-celled organisms that introduce a phenotype to eukaryotic cells that is maintained in daughter cells. The invention additionally provides eukaryotic cells containing magnetotactic bacteria.

Provided are aromatic compounds, phospholipid-polymer-aromatic conjugates comprising the aromatic compounds, and liposome compositions including the phospholipid-polymer-aromatic conjugates. The liposomal compositions may be useful for imaging of Alzheimer's Disease, for example, imaging of the amyloid- plaque deposits characteristic of Alzheimer's Disease.

Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Microspheres of the present invention may further be provided with physical and/or chemical enhancements within the particles' cores to enhance visualization of the embolized tissue using a variety of medical imaging modalities, including conventional radiography, fluoroscopy, tomography, computerized tomography, ultrasound, scintillation, magnetic resonance, or other imaging technologies.

Nanoparticles zwitterionic polymers grafted thereto or grafted therefrom, and methods for making and using the nanoparticles. Zwitterionic nanogels, and methods for making and using the nanogels.

Nanoparticles zwitterionic polymers grafted thereto or grafted therefrom, and methods for making and using the nanoparticles. Zwitterionic nanogels, and methods for making and using the nanogels.

The present invention relates to magnetic and fluorescent nanoassemblies having reverse architectures. Especially, the nanoassemblies of the invention comprise a fluorescent core and magnetic nanoparticles contacting the surface of the fluorescent core. The nanoassemblies of the invention may further be coated by a polymer, which may optionally be functionalized. The invention further relates to a process for manufacturing the nanoassemblies of the invention. The invention is also directed to the use of the nanoassemblies of the invention, especially for multimodal imaging, in vitro and/or in vivo diagnostics through multimodal imaging, and/or therapy.