摘要:
A method for obtaining information on the primary structure of peptides comprising fragmenting the proteins, which enables automation of obtaining information on the primary structure of a peptide sample; a device for use in the method; and an automatic analysis system on the primary structure of the peptides. The method for obtaining information on the primary structure of peptides comprising the steps of: denaturing, reducing, and alkylating a protein; immobilizing the reduced alkylated protein obtained on a hydrophobic microparticulate carrier; chemically or enzymatically fragmenting the immobilized protein obtained; and obtaining information on the primary structure of the peptides fragmented. The automatic analysis system on the primary structure of the peptides comprising an automatic fragmentation element for automatically fragmenting a reduced and alkylated protein, an automatic mass spectrometry element for automatically analyzing the fragmented peptides by mass spectrometry, and a data analysis element for analyzing the data obtained by the automatic mass spectrometry element. The automatic fragmentation of the reduced and alkylated protein is conducted using a hydrophobic microparticulate carrier.
摘要:
It is an object of the present invention to provide a polymer material, the histocompatibility of which has been improved by irradiation of ion beam, which prevents an aneurysm having a risk of rupture from actually rupturing. The present invention provides a material for treating aneurysms, which is composed of a polymer material containing carbon as a constitutional element, and which is produced by modifying at least a portion of the surface thereof by ion bombardment.
摘要:
The object of the present invention is to provide a novel gas separation membrane having a high gas permeability and a high gas selectivity, and a method of producing the same. The present invention provides a gas separation membrane comprising a polymeric material soluble in an organic solvent, wherein at least a part of the surface is modified by ion bombardment.
摘要:
Process for producing an aluminum material having an aluminum nitride surface layer which comprises implanting the surface of an aluminum substrate with nitrogen ions while maintaining a nitrogen atmosphere under reduced pressure in the vicinity of the surface of the aluminum substrate. The aluminum nitride modified layer contains substantially no impurities such as oxygen. It is a feature of this invention to perform ion implantation in a properly controlled nitrogen atmosphere at a proper degree of vacuum in the range of about 10.sup.-7 to 10.sup.-5 Torr.
摘要:
There are provided an electron microscope capable of carrying out focusing and astigmatism correction without depending on characteristics of a sample, and a method for controlling its focus position.The electron microscope according to the present invention comprises: an electron optical system (2); a focus control part (3); an image detecting part (4); a first operating part (11) for mutually dividing first and second transformed images (9) and (10), which are obtained by carrying out the fast Fourier transform of first and second images (7) and (8) detected at two focus positions of a first focus position (f1) and a second focus position (f2) shifted from the first focus position by a known focus shifted quantity Δf, to obtain a measured divided quantity Rexp; divided quantity data (12) previously prepared and stored as a function of focus positions and spatial frequencies as a set of theoretical divided quantities, the theoretical divided quantities being obtained by substituting the two focus positions shifted by the focus shifted quantity Δf for an image transfer function (r,f) to obtain first and second transfer function values K(r;f) and (r;f+Δf) to mutually divide the first and second transfer function values K(r;f1) and (r;f+Δf) on a spatial frequency plane; and a second operating part (13) for making a reference to the divided quantity data (12) to derive a theoretical divided quantity K(r;f0) correlating to the measured divided quantity Rexp, and for deriving a focus position f0 corresponding to the derived theoretical divided quantity K(r;f0)/K(r;f0+Δf) as a first focus position f1.
摘要翻译:提供了能够进行聚焦和散光校正的电子显微镜,而不依赖于样品的特性,以及用于控制其焦点位置的方法。 根据本发明的电子显微镜包括:电子光学系统(2); 聚焦控制部(3); 图像检测部分(4); 第一操作部分(11),用于通过执行在两个焦点位置处检测到的第一和第二图像(7)和(8)的快速傅立叶变换来获得第一和第二变换图像(9)和(10) 第一对焦位置(f 1)和第二聚焦位置(f 2)从第一聚焦位置移位已知聚焦移动量Deltaf,以获得测量的分割数Rexp; 预先准备并存储作为焦点位置和空间频率的函数的分割数量数据(12)作为一组理论分割量,理论分割量通过将通过焦点移动量Deltaf移位的两个焦点位置替换为图像传送而获得 函数(r,f)以获得第一和第二传递函数值K(r; f)和(r; f + Deltaf),以将第一和第二传递函数值K(r; f 1)和(r; f + Deltaf)在空间频率平面上; 以及用于参考分割数量数据(12)的第二操作部分(13),以导出与测量的分割数量Rexp相关的理论分割量K(r; f 0),并且用于导出对应的对焦位置f 0 作为第一焦点位置f 1的导出的理论分割量K(r; f 0)/ K(r; f 0 + Deltaf)。
摘要:
An object of the present invention is to provide a means for improving the affinity of an in vivo embedded material such as an artificial blood vessel or an artificial dura mater with a tissue adhesive, so as to quickly prevent the leakage of the blood or spinal fluid. The present invention provides a polymeric material used in combination with a tissue adhesive, which comprises carbon or silicon as a constitutional element, and at least a portion of the surface of which is modified by ion bombardment.
摘要:
[Purpose] The present invention relates to an ultrasonic motor having a stator which includes a piezoelectric element for moving a rotor in a prescribed direction by applying a predetermined ultrasonic voltage thereto, and the rotor which is fixed to the stator by a frictional force, and a method for manufacturing an ultrasonic motor, and it has for its purpose to attain decrease of dust appearance by enhancement of a wear resistance, a different hardness, or the like in such a way that a contact part of at least either of a stator and a rotor which constitute the ultrasonic motor is irradiated with ions.[Constitution] An ultrasonic motor characterized in that either or both of contact parts of a stator and a rotor is/are irradiated with ions, thereby to enhance a wear resistance of the contact part or parts.
摘要:
An antithrombogenic material whose stickiness to cells is maintained but whose stickiness to blood platelet is inhibited, is disclosed, which comprises a substrate and a biopolymer material coated on said substrate, the antithrombogenic material being obtained by irradiating the biopolymer material with ion beam to maintain its stickiness to a cell but reduce its stickiness to a blood platelet. In accordance with the present invention, there is also provided a method for producing the antithrombogenic material.
摘要:
It is an object of the present invention to provide a polymer material, the histocompatibility of which has been improved by irradiation of ion beam, which prevents an aneurysm having a risk of rupture from actually rupturing. The present invention provides a material for treating aneurysms, which is composed of a polymer material containing carbon as a constitutional element, and which is produced by modifying at least a portion of the surface thereof by ion bombardment.
摘要:
An object of the present invention is to provide a means for improving the affinity of an in vivo embedded material such as an artificial blood vessel or an artificial dura mater with a tissue adhesive, so as to quickly prevent the leakage of the blood or spinal fluid. The present invention provides a polymeric material used in combination with a tissue adhesive, which comprises carbon or silicon as a constitutional element, and at least a portion of the surface of which is modified by ion bombardment.