34 results about "Growth suppression" patented technology

A semiconductor laser, a semiconductor device and a nitride series III-V group compound substrate capable of obtaining a crystal growth layer with less fluctuation of the crystallographic axes and capable of improving the device characteristics, as well as a manufacturing method therefor are provided. The semiconductor laser comprises, on one surface of a substrate used for growing, a plurality of spaced apart seed crystal layers and an n-side contact layer having a lateral growing region which is grown on the basis of the plurality of seed crystal layers. The seed crystal layer is formed in that a product of width w1 (unit: mum) at the boundary thereof relative to the n-side contact layer along the arranging direction A and a thickness t1 (unit: mum) along the direction of laminating the n-side contact layer is 15 or less. A semiconductor layer comprising a nitride series III-V group compound semiconductor is laminated on a substrate 11 comprising an n-type GaN. Protruded seed crystal portions are formed and a growth suppression layer having an opening corresponding to the seed crystal portion is disposed to the substrate. The semiconductor layer grows on the basis of the seed crystal portion and has a lateral growing region of low dislocation density.

The present invention is to improve yield and reliability in a wiring step of a semiconductor device. When an Al wiring on an upper layer is connected through an connection pillar onto an Al wiring on a lower layer embedded in a groove formed on an interlayer insulation film, a growth suppression film having an opening whose width is wider than that of the Al wiring is formed on the interlayer insulation film and the Al wiring. In this condition, Al and the like are grown by a selective CVD method and the like. Accordingly, the connection pillar is formed on the Al wiring within the opening, in a self-matching manner with respect to the Al wiring.

The invention discloses a preparation method for supermolecule hydrogel containing silver nanoparticles, and belongs to the technical field of nanometer materials. The preparation method for supermolecule hydrogel containing silver nanoparticles comprises the following steps that: dissolving a D type Fmoc-Phe gel factor in buffer solution of which the pH (Potential of Hydrogen) value is 7.4, and guaranteeing that the concentration of the D type Fmoc-Phe gel factor in first mixed solution is 6-20mg/mL; shocking the first mixed solution for 30s, and then, heating and dissolving at the temperature of 80-100DEG C to obtain even solution; adding silver nitrate solution into the even solution to obtain hot solution; weighing ascorbic acid, and adopting ultrapure water to dissolve to obtain ascorbic acid solution; and adding the ascorbic acid solution into the hot solution to form even and transparent grayish hydrogel. By use of the preparation method for the supermolecule hydrogel containingsilver nanoparticles, the silver nanoparticle can be subjected to in-situ preparation in the hydrogel, and silver nanoparticles are evenly dispersed, and perform a good growth suppression effect on gram positive bacteria which take staphylococcus aureus as a representative.

An alternative HER-2/neu product, herstatin, consists of subdomains I and II from the ectodomain of p185HER-2 and a unique 79 amino acid C-terminus encoded by intron 8. Recombinant herstatin added to cells was found to bind to and inhibit p185HER-2. The effects of ectopic expression of herstatin in combination with either p185HER-2 or with its homolog, the EGF receptor, in several cell lines was studied. Cotransfection of herstatin with HER-2 inhibited p185HER-2 levels and caused an approximate 8 fold reduction in p185 tyrosine phosphorylation. Inhibition of p185HER-2 tyrosine phosphorylation corresponded to a dramatic decline in colony formation by cells that coexpressed p185HER-2 and herstatin. Herstatin also interfered with EGF activation of the EGF receptor in cotransfected cells demonstrated by impaired receptor tyrosine phosphorylation, reduced receptor down-regulation, and growth suppression. For both p185HER-2 and the EGF receptor, the extent of inhibition was affected by the expression levels of herstatin relative to the receptor. Herstatin is an autoinhibitor of p185HER-2 and expands its inhibitory activity to another member of the group I family of receptor tyrosine kinases, the EGF receptor.

A hair removal and re-growth suppression apparatus (10) is constituted by: a control circuitry (70); a removal and suppression head (20); an extender assembly (23) coupled to the head (20) and extending away from a wall of the head (20) towards an end thereof, the extender assembly defining an opening (17) at an end thereof removed from the wall of the head (20); an irradiating element (40) secured to the head (20) responsive to the control circuitry (70); a reflector (90) disposed on the head (20) between the irradiating element (40) and the head (20); and a cutting element (110) secured to the head (20) and arranged to cut hair when the opening (17) is juxtaposed with a skin portion (140) having a hair (150) extending outward there from, wherein the reflector (90) is arranged to substantially reflect the out not put electromagnetic radiation toward the opening (17). Optionally, the irradiating element (40) is regularly translated between a first and a second position to heat and cut the hair without damaging the skin.

It is intended to provide a phytotoxicity controlling agent usable as a herbicide for upland farming, which exerts a sufficient herbicidal effect on weeds growing together with upland crops, for example, wheat, rye, barley, oat, corn, sorghum, cotton, soybean, adzuki bean, oilseed rape, beet, upland rice and so on but causes no phytotoxic phenomenon (for example, growth inhibition, growth suppression, tiller inhibition or yellowing) in cultivated plants, comprising a nuclear-substituted benzoic acid represented by the following general formula:

wherein R¹ represents linear or branched C_4-15 alkyl; a salt thereof or an alkyl ester thereof.

An antiproliferative effect of IFN-α gene transduction in pancreatic cancer cells. The invention relates to expression of IFN-α to effectively induce growth suppression and cell death in pancreatic cancer cells, an effect which appeared to be more prominent when compared with other types of cancers and normal cells. Another aspect of the invention relates to targeting the characteristic genetic aberration, K-ras point mutation, in pancreatic cancer, and that the expression of antisense K-ras RNA significantly suppresses the growth of pancreatic cancer cells. When these two gene therapy strategies are combined, the expression of antisense K-ras RNA significantly enhanced IFN-α-induced cell death (1.3-3.5 fold), and suppressed subcutaneous growth of pancreatic cancer cells in mice. The invention also relates to a method of suppressing pancreatic cancer cells using double strand RNA formed by antisense and endogeneous K-ras RNA in combination with the anti-tumor activity of IFN-α. The invention relates to the combination of IFN-α and antisense K-ras RNA as an effective gene therapy strategy against pancreatic cancer. The invention also relates to a method of treating pancreatic cancer cells disseminated throughout the body by administering the inventive combination to localized pancreatic cancer cell tumor. The invention also relates to inducing indirect immunological antitumor activity to provide systemic immunity against pancreatic cancer cells.

The invention discloses a farm chemical composition containing thymol. The effective components of the composition are thymol, carvacrol and menthol. The composition disclosed by the invention is a pure botanical natural farm chemical, has no harvesting interval when in use, and has no harm to human beings and pathogenic bacteria natural enemies; when diseases are treated, adverse reactions (suchas growth suppression, flower bud differentiation influence and the like) of plants cannot be caused; the composition has a strong killing effect on gray mold and powdery mildew of various crops, andalso has a very good treatment effect on some other crop diseases such as cowpea sooty mould, tomato leaf mold, tomato bacterial leaf spot, cucumber angular leaf spot, cucumber gummosis, watermelon shade skin disease, pepper stem rot, strawberry root rot and pineapple heart rot.

This invention relates to a gene encoding RTVP that has been shown to be up-regulated by p53 using differential display-PCR and subsequently by co-transfection studies. RTVP-1 mRNA is abundant in normal mouse and human prostatic epithelial cells and primary tumors, but is significantly down regulated in metastatic mouse and human prostate cancer. In prostate cancer cells overexpression of the mouse RTVP-1 gene (mRTVP-1) induced apoptosis that was accompanied by increased caspase 8, 9 and 3 activities. mRTVP-1-stimulated apoptosis was also associated with increased levels of bax, bad and activated BID; reduced levels of bcl-2 and bcl-X_L; and cytosolic cytochrome c accumulation. Adenoviral-vector-mediated mRTVP-1 expression lead to potent growth suppression and antimetastatic activities in an orthotopic mouse model of prostate cancer in vivo. These therapeutic activities were associated with anti-angiogenic effects and importantly a local and systemic immune response. Accordingly, p53 was linked with suppression of metastasis through its induction of mRTVP-1, which can concurrently induce apoptosis, suppress angiogenesis and stimulate an antitumor immune response. Thus, the invention includes compositions and methods, based on RTVP nucleic acid, polypeptides, and antibodies, for use in the treatment, prevention and detection of neoplastic disease and, specifically, metastatic prostatic neoplasia.

This invention relates to a gene encoding RTVP that has been shown to be up-regulated by p53 using differential display-PCR and subsequently by co-transfection studies. RTVP-1 mRNA is abundant in normal mouse and human prostatic epithelial cells and primary tumors, but is significantly down regulated in metastatic mouse and human prostate cancer. In prostate cancer cells overexpression of the mouse RTVP-1 gene (mRTVP-1) induced apoptosis that was accompanied by increased caspase 8, 9 and 3 activities. mRTVP-1-stimulated apoptosis was also associated with increased levels of bax, bad and activated BID; reduced levels of bcl-2 and bcl-XL; and cytosolic cytochrome c accumulation. Adenoviral-vector-mediated mRTVP-1 expression lead to potent growth suppression and antimetastatic activities in an orthotopic mouse model of prostate cancer in vivo. These therapeutic activities were associated with anti-angiogenic effects and importantly a local and systemic immune response. Accordingly, p53 was linked with suppression of metastasis through its induction of mRTVP-1, which can concurrently induce apoptosis, suppress angiogenesis and stimulate an antitumor immune response. Thus, the invention includes compositions and methods, based on RTVP nucleic acid, polypeptides, and antibodies, for use in the treatment, prevention and detection of neoplastic disease and, specifically, metastatic prostatic neoplasia.

The invention discloses an anticorrosion composition based on a mild effect for cosmetics and a preparation method of the cosmetics. The anticorrosion composition contains the following components inpercentage by weight: 5%-10% of plant extract, 40%-50% of an anticorrosion enhancer and the balance of a pterostilbene derivative, wherein the plant extracts are an aloe extract, a polygonum cuspidatum extract, a grape skin extract and a peanut shell extract. The anticorrosion composition prepared by virtue of the preparation method is mild and non-irritant, does not contain any forbidden and restricted preservative component and formaldehyde release body, can completely support a ''preservative free'' compound system and is high in safety; and the prepared cosmetics has remarkable effects onthe growth suppression of bacteria and mold, has broad-spectrum antibacterial activity and strong anticorrosion property, is mild and can be used for a long time.

The present disclosure provides a method of culturing mammalian cells, e.g., by perfusion cell culture, expressing a heterologous protein in a cell culture, comprising culturing mammalian cells expressing a heterologous protein in a culture medium comprising an effective amount of one or more lipids or lipid metabolites selected from the group consisting of: linoleic acid, arachidonic acid, and prostaglandin E2, or derivatives and/or precursors thereof. The lipids or lipid metabolites or combinations thereof can lead to growth suppression and/or increased productivity with reduced cell bleed. The present disclosure also provides methods for increasing the productivity of a cell culture by culturing the cells in a culture medium comprising an effective amount of one or more lipids or lipid metabolites selected from the group consisting of: linoleic acid, arachidonic acid, and prostaglandin E2, or derivatives and/or precursors thereof. The present disclosure also provides culture medium for use in producing therapeutic proteins with increased productivity, wherein the medium comprises one or more lipids or lipid metabolites selected from the group consisting of: linoleic acid, arachidonic acid, and prostaglandin E2, or derivatives and/or precursors thereof.

The invention discloses a preparation method of a plant growth promoting and weeding mixture. The plant growth promoting and weeding mixture is obtained by mixing a microbial agent, a herbicide and water in a ratio of 1: 1: 80, the plant growth promoting and weeding mixture is used for weeding, the soil is improved, and the soil fertility is enhanced. Compared with the prior art, the plant growthpromoting and weeding mixture has the following effects that weeds can be killed, and meanwhile, the damage of the herbicide to crops is avoided, the growth suppression of the herbicide on the crops is eliminated, the fertilizer efficiency can be increased, and the soil is improved, so that the yield of the crops can be increased, and the quality of the crops can be improved.

A weed growth suppression device, including a first spike assembly to be inserted at least partially into a surface, a second spike assembly to be inserted at least partially into the surface, and a rod to connect the first spike assembly to the second spike assembly.