A multilayer coil component includes an element body including an end surface, a coil disposed in the element body, and an external electrode disposed on an end portion of the element body and connected to the coil. The external electrode includes a conductive resin layer. The conductive resin layer includes resin and a plurality of metal particles and is in contact with the end surface. The conductive resin layer includes a metal particle group. The metal particle group consists a plurality of first metal particles included in the plurality of metal particles, and the plurality of first metal particles is adjacent to the end surface and separated from the end surface.

A multilayer coil component includes an element body including an end surface, a coil disposed in the element body, and an external electrode disposed on an end portion of the element body and connected to the coil. The external electrode includes a conductive resin layer. The conductive resin layer includes resin and a plurality of metal particles and is in contact with the end surface. The conductive resin layer includes a metal particle group. The metal particle group consists a plurality of first metal particles included in the plurality of metal particles, and the plurality of first metal particles is adjacent to the end surface and separated from the end surface.

A layered electronic component includes a multilayer body having a metallic magnetic material layer including metallic magnetic material particles and a coil being built in the multilayer body. The coil is formed of multiple conductor patterns spirally connected each other and stacked along an axis direction of the coil, and the multilayer body includes a nonmagnetic ferrite part arranged at least an inner area of the coil when viewed from a winding axis direction of the coil.

A layered electronic component includes a multilayer body having a metallic magnetic material layer including metallic magnetic material particles and a coil being built in the multilayer body. The coil is formed of multiple conductor patterns spirally connected each other and stacked along an axis direction of the coil, and the multilayer body includes a nonmagnetic ferrite part arranged at least an inner area of the coil when viewed from a winding axis direction of the coil.

A magnetic particle is disclosed. The magnetic particle comprises a magnetic material having a maximum field strength in a range of from about 20 emu/g to about 250 emu/g and a remanence in a range of from about 0 emu/g to about 30 emu/g. The magnetic particle further comprises an outer surface containing a ligand. The ligand interacts with an analyte of interest in the sample solution.

A magnetic particle is disclosed. The magnetic particle comprises a magnetic material having a maximum field strength in a range of from about 20 emu/g to about 250 emu/g and a remanence in a range of from about 0 emu/g to about 30 emu/g. The magnetic particle further comprises an outer surface containing a ligand. The ligand interacts with an analyte of interest in the sample solution.

A grain-oriented M-type hexagonal ferrite has the formula MeFe.sub.12O.sub.19, and a dopant effective to provide planar magnetic anisotropy and magnetization in a c-plane, or a cone anisotropy, in the hexagonal crystallographic structure wherein Me is Sr.sup.+, Ba.sup.2+ or Pb.sup.2+, and wherein greater than 30%, preferably greater than 80%, of c-axes of the ferrite grains are aligned perpendicular to the c-plane.

Provided are a ferrite powder that suppresses decreases in saturation magnetization and decreases in filler filling ratio and also suppresses inhibition of resin curing, and a method for producing the same. A ferrite powder composed of spherical ferrite particles, wherein the ferrite powder contains iron (Fe) 54.0-70.0 mass % and manganese (Mn) 3.5-18.5 mass %, has an average volume particle size of 2.0-20.0 μm, and has a carbon content of 0.100 mass % or lower.

This invention provides mass spectrometry (MS) compatible nanomaterials for the selective capture and enrichment of low abundance proteins as well as MS analysis of different proteoforms of proteins, particularly cardiac proteins and different proteoforms of cardiac troponin I (cTnI) arising from post-translational modifications and sequence variations. The surface of superparamagnetic nanoparticles is functionalized with probe molecules that specifically bind to the desired protein. In an embodiment, the nanoparticles are functionalized with probe molecules having high affinity and selectivity for cTnI within the human cardiac troponin complex. This allows for MS-analysis and characterization of cTnI proteoforms from human heart tissue lysates and human blood or serum samples, and provides an accurate assay for detection of cTnI with molecular details. Such assays are useful for accurate diagnosis of acute coronary syndrome and chronic diseases, including acute myocardial infarction and other cardiac injuries, as well as risk stratification and outcome assessment for patients.

This invention provides mass spectrometry (MS) compatible nanomaterials for the selective capture and enrichment of low abundance proteins as well as MS analysis of different proteoforms of proteins, particularly cardiac proteins and different proteoforms of cardiac troponin I (cTnI) arising from post-translational modifications and sequence variations. The surface of superparamagnetic nanoparticles is functionalized with probe molecules that specifically bind to the desired protein. In an embodiment, the nanoparticles are functionalized with probe molecules having high affinity and selectivity for cTnI within the human cardiac troponin complex. This allows for MS-analysis and characterization of cTnI proteoforms from human heart tissue lysates and human blood or serum samples, and provides an accurate assay for detection of cTnI with molecular details. Such assays are useful for accurate diagnosis of acute coronary syndrome and chronic diseases, including acute myocardial infarction and other cardiac injuries, as well as risk stratification and outcome assessment for patients.