Abstract: Provided are a protective agent for electron microscopic observation in a vacuum which can protect a biological sample in a water-containing state, such as a mammal, a plant tissue or a cultured cell, and a single cell in the living state without deforming it even in a vacuum, a kit using the same, methods for observation, diagnosis, evaluation, and quantification of a sample by an electron microscope, and a sample stage to be used for the observation. The protective agent for electron microscopic observation of the present invention contains a a component to impart the survival environment, a saccharide, and an electrolyte.

Abstract: Provided is a technique for fabricating a novel thin membrane with a starting material such as a biocompatible compound that is not easily processible into a membrane, particularly a technique for fabricating a novel thin membrane of a composition that is gradually polymerized from a membrane surface into the membrane in the cross sectional direction of the membrane, and having, for example, different structures on the front and back of the membrane. The technique includes the steps of preparing a solution of a starting material compound; forming a thin membrane of the solution on a base material surface; and forming the organic polymer thin membrane through a polymerization reaction caused by irradiating the exposed surface of the thin membrane with a plasma or an electron beam.

Abstract: Provided is a technique for fabricating a novel thin membrane with a starting material such as a biocompatible compound that is not easily processible into a membrane, particularly a technique for fabricating a novel thin membrane of a composition that is gradually polymerized from a membrane surface into the membrane in the cross sectional direction of the membrane, and having, for example, different structures on the front and back of the membrane. The technique includes the steps of preparing a solution of a starting material compound; forming a thin membrane of the solution on a base material surface; and forming the organic polymer thin membrane through a polymerization reaction caused by irradiating the exposed surface of the thin membrane with a plasma or an electron beam.

Abstract: Provided is a technique for fabricating a novel thin membrane with a starting material such as a biocompatible compound that is not easily processible into a membrane, particularly a technique for fabricating a novel thin membrane of a composition that is gradually polymerized from a membrane surface into the membrane in the cross sectional direction of the membrane, and having, for example, different structures on the front and back of the membrane. The technique includes the steps of preparing a solution of a starting material compound; forming a thin membrane of the solution on a base material surface; and forming the organic polymer thin membrane through a polymerization reaction caused by irradiating the exposed surface of the thin membrane with a plasma or an electron beam.

Abstract: Provided is an observation method by an electron microscope, in which a biological sample can be observed as it is alive and a situation that the biological sample is moving can be observed using an electron microscope, and a composition for evaporation suppression under vacuum, a scanning electron microscope, and a transmission electron microscope used in the method. The sample observation method by an electron microscope according to the invention includes applying a composition for evaporation suppression containing at least one kind selected from an amphiphilic compound, oils and fats, and an ionic liquid to the surface of a sample to form a thin film, and covering the sample with the thin film, and displaying an electron microscopic image of the sample, which is covered with the thin film and accommodated in a sample chamber under vacuum, on a display device.

Abstract: Provided are a protective agent for electron microscopic observation in a vacuum which can protect a biological sample in a water-containing state, such as a mammal, a plant tissue or a cultured cell, and a single cell in the living state without deforming it even in a vacuum, a kit using the same, methods for observation, diagnosis, evaluation, and quantification of a sample by an electron microscope, and a sample stage to be used for the observation. The protective agent for electron microscopic observation of the present invention contains a a component to impart the survival environment, a saccharide, and an electrolyte.

Abstract: The present invention enables simple production of osmium tetroxide having comparable performance to that sold in reagents from a solution containing osmium. The present invention relates to a method for producing osmium tetroxide solution, the method comprising a step for using ozone or a similar oxidizing gas to oxidize a solution containing osmium and produce osmium tetroxide gas and a step for introducing the resulting osmium tetroxide gas into a recovery solution; the present invention further relates to a production apparatus therefor.

Abstract: Provided is a technique for fabricating a novel thin membrane with a starting material such as a biocompatible compound that is not easily processible into a membrane, particularly a technique for fabricating a novel thin membrane of a composition that is gradually polymerized from a membrane surface into the membrane in the cross sectional direction of the membrane, and having, for example, different structures on the front and back of the membrane. The technique includes the steps of preparing a solution of a starting material compound; forming a thin membrane of the solution on a base material surface; and forming the organic polymer thin membrane through a polymerization reaction caused by irradiating the exposed surface of the thin membrane with a plasma or an electron beam.

Abstract: Provided is an observation method by an electron microscope, in which a biological sample can be observed as it is alive and a situation that the biological sample is moving can be observed using an electron microscope, and a composition for evaporation suppression under vacuum, a scanning electron microscope, and a transmission electron microscope used in the method. The sample observation method by an electron microscope according to the invention includes applying a composition for evaporation suppression containing at least one kind selected from an amphiphilic compound, oils and fats, and an ionic liquid to the surface of a sample to form a thin film, and covering the sample with the thin film, and displaying an electron microscopic image of the sample, which is covered with the thin film and accommodated in a sample chamber under vacuum, on a display device.

Abstract: The present invention enables simple production of osmium tetroxide having comparable performance to that sold in reagents from a solution containing osmium. The present invention relates to a method for producing osmium tetroxide solution, the method comprising a step for using ozone or a similar oxidizing gas to oxidize a solution containing osmium and produce osmium tetroxide gas and a step for introducing the resulting osmium tetroxide gas into a recovery solution; the present invention further relates to a production apparatus therefor.