摘要:
A method of preparing polysaccharide glassy microparticles which are less than 10 μum in diameter and contain structurally delicate agents, such as proteins, peptides, gene materials, vaccines, antibodies, viruses and liposomes using low-temperature aqueous-aqueous emulsification (free of polyelectrolytes) and freezing-induced phase separation. When delicate agents are added to a polysaccharide-PEG two phase system followed by homogenization (or other shear adding process), the agents partition into the polysaccharide dispersed phase preferentially. These processes help to avoid aggregation of proteins caused by interaction with charged polyelectrolytes used for stabilizing the polysaccharide dispersed phase in our previously reported aqueous-aqueous emulsion. When this system is frozen and lyophilized, glassy particles less than 10 μm in diameter containing delicate agents can be formed. These fine polysaccharide particles protect proteins within their hydrophilic glassy matrix, and can therefore be easily suspended in hydrophobic polymer solutions and formulated to various forms of sustained release devices such microsphere, sheets, fibers, coating layers, and scaffolds. The particles can also be dispersed in hydrophilic gels to improve releasing kinetics and to deliver vaccines and antibodies for immune therapy.
摘要:
A method of preparing polysaccharide glassy microparticles which are less than 10 μum in diameter and contain structurally delicate agents, such as proteins, peptides, gene materials, vaccines, antibodies, viruses and liposomes using low-temperature aqueous-aqueous emulsification (free of polyelectrolytes) and freezing-induced phase separation. When delicate agents are added to a polysaccharide-PEG two phase system followed by homogenization (or other shear adding process), the agents partition into the polysaccharide dispersed phase preferentially. These processes help to avoid aggregation of proteins caused by interaction with charged polyelectrolytes used for stabilizing the polysaccharide dispersed phase in our previously reported aqueous-aqueous emulsion. When this system is frozen and lyophilized, glassy particles less than 10 μm in diameter containing delicate agents can be formed. These fine polysaccharide particles protect proteins within their hydrophilic glassy matrix, and can therefore be easily suspended in hydrophobic polymer solutions and formulated to various forms of sustained release devices such microsphere, sheets, fibers, coating layers, and scaffolds. The particles can also be dispersed in hydrophilic gels to improve releasing kinetics and to deliver vaccines and antibodies for immune therapy.
摘要:
Described is a method for preparation of stable fatty alcohol emulsion, wherein, fatty acid esters are introduced into an antifoaming agent emulsion system, and an anionic surfactant is added in the late stage of emulsification process in order to further improve the stability of the emulsion. The anionic surfactant is absorbed to the surface of fatty alcohol particles to make the fatty alcohol emulsion more stable under the action of ionic mutual repulsion. The prepared fatty alcohol emulsion has favorable foam elimination and suppression performance in the paper making procedure, and is stable during storage.
摘要:
A new-type papermaking wet-end defoamer and methods of making relating to the field of the chemical preparations for use in papermaking. The defoamer including 5˜99% FAME (fatty acid methyl ester) derivatives having a general structural formula of R1CO(EO)x(PO)yOCH3, molecular weight of 300˜3000 and a turbidity point of 20˜80° C.; which are the products of the addition reaction of FAME as an initiator and EO (ethylene oxide) and/or PO (propylene oxide) under the action of catalyst. The defoamer also including 0.1˜80% polyether having a general structural formula of R2{M(EO)m(PO)nH}a, a molecular weight of 500˜8000 and a turbidity point of 10˜80° C. The defoamer also including a 0.1˜70% modified polyether, with a general structural formula of R2{M(EO)m(PO)nR3}a. The defoamer also including 0.1˜20% natural oil and fat. The new-type papermaking wet-end defoamer is not only applicable to the papermaking wet-end process but also applicable to papermaking wastewater treatment and the elimination of other aqueous foam.
摘要翻译:一种新型造纸湿式消泡剂,以及与造纸中使用的化学制剂领域相关的制备方法。 消泡剂包括具有通式结构式为R 1 CO(EO)x(PO)y OCH 3,分子量为300〜3000,浊度为20〜80℃的5〜99%FAME(脂肪酸甲酯)衍生物。 它们是在催化剂作用下作为引发剂和EO(环氧乙烷)和/或PO(环氧丙烷)的加成反应的产物。 消泡剂还包括具有通式结构式为R 2(M(EO)m(PO)n H} a的0.1〜80%的聚醚,分子量为500〜8000,浊点为10〜80℃。消泡剂也 包括具有通式结构式为R 2 {M(EO)m(PO)n R 3} a的0.1〜70%的改性聚醚。 消泡剂中还含有0.1〜20%天然油脂。 新型造纸湿式消泡剂不仅适用于造纸湿端工艺,而且适用于造纸废水处理和其他水性泡沫的消除。
摘要:
The present invention provides a method for determining in vitro, in a peripheral blood sample, the probability for an individual to suffer from a colorectal cancer, using the comparison of the amount of expression products of nucleic acids of genes of the individual to be tested with the amount of expression products of nucleic acids of the same genes obtained from a CRC group of patients constituting the positive control and with the amount of expression products of nucleic acids of the same genes obtained from a CNC group of individuals constituting the negative control; and a kit comprising specific binding partners for said expression products.
摘要:
A method and kit are related to discriminating between breast cancer and benign breast disease by the determination of the expression level of at least one target gene including a nucleic acid sequence selected from the nucleic acid sequences set forth in SEQ ID NOs: 1, 2 or 3, 4 and 5 or 6 to obtain an expression profile for the patient, and the comparison of the expression profile of the patient with expression profiles of target genes from patients previously clinically classified as breast cancer and expression profiles of target genes from patients previously clinically classified as benign breast disease.
摘要翻译:一种方法和试剂盒涉及通过测定至少一种靶基因的表达水平来区分乳腺癌和良性乳腺疾病,所述至少一种靶基因包括选自SEQ ID NO:1,2所示的核酸序列的核酸序列,或 3,4和5或6以获得患者的表达谱,并且将患者的表达谱与先前临床分类为乳腺癌的患者的靶基因的表达谱和先前临床患者的靶基因的表达谱进行比较 归为良性乳腺疾病。
摘要:
The present invention provides a method for determining in vitro, in a peripheral blood sample, the probability for an individual to suffer from a colorectal cancer, using the comparison of the amount of expression products of nucleic acids of genes of the individual to be tested with the amount of expression products of nucleic acids of the same genes obtained from a CRC group of patients constituting the positive control and with the amount of expression products of nucleic acids of the same genes obtained from a CNC group of individuals constituting the negative control; and a kit comprising specific binding partners for said expression products.
摘要:
A method and kit are related to discriminating between breast cancer and benign breast disease by the determination of the expression level of at least one target gene including a nucleic acid sequence selected from the nucleic acid sequences set forth in SEQ ID NOs: 1, 2 or 3, 4 and 5 or 6 to obtain an expression profile for the patient, and the comparison of the expression profile of the patient with expression profiles of target genes from patients previously clinically classified as breast cancer and expression profiles of target genes from patients previously clinically classified as benign breast disease.
摘要翻译:一种方法和试剂盒涉及通过测定至少一种靶基因的表达水平来区分乳腺癌和良性乳腺疾病,所述至少一种靶基因包括选自SEQ ID NO:1,2所示的核酸序列的核酸序列,或 3,4和5或6以获得患者的表达谱,并且将患者的表达谱与先前临床分类为乳腺癌的患者的靶基因的表达谱和先前临床患者的靶基因的表达谱进行比较 归为良性乳腺疾病。
摘要:
An image sensor having an array of pixels disposed in a substrate. Each pixel includes a photosensitive element, a color filter, and waveguide walls. The waveguide walls are disposed in the color filter and surround portions of the color filter to form waveguides through the color filter. The refractive index of the waveguide walls is less than the refractive index of the color filter. The image sensor may be back side illuminated (BSI) or front side illuminated (FSI). In some embodiments, metal walls may be coupled to the waveguide walls.
摘要:
An imaging system includes an image sensor and an optical filter. The image sensor captures image data in response to incident light. The optical filter filters the light and includes a dual window transmission spectrum. The dual window transmission spectrum includes a first transmission window having a first pass band aligned to pass visible light and a second transmission window having a second pass band overlapping with an absorption band of infrared light in Earth's atmosphere.