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73 results about "Transplant tissue" patented technology

Method and device for treating osteoarthritis, cartilage disease, defects and injuries in the human knee

A method of determining the voltage and current output required for the application of specific and selective electric and electromagnetic signals to diseased articular cartilage in the treatment of osteoarthritis, cartilage defects due to trauma or sports injury, or used as an adjunct with other therapies (cell transplantation, tissue-engineered scaffolds, growth factors, etc.) for treating cartilage defects in the human knee joint and a device for delivering such signals to a patient's knee. An analytical model of the human knee is developed whereby the total tissue volume in the human knee may be determined for comparison to the total tissue volume of the diseased tissue in the animal model using electric field and current density histograms. The voltage and current output used in the animal model is scaled based on the ratio of the total tissue volume of the diseased tissue of the human to the total tissue volume of the diseased tissue in the animal model and the resulting field is applied to the diseased tissue of the human using at least two electrodes applied to the knee or a coil or solenoid placed around the knee. The voltage of the signal applied to the electrodes, coil or solenoid is varied based on the size of the knee joint; larger knee joints require larger voltages to generate the effective electric field.
Owner:THE TRUSTEES OF THE UNIV OF PENNSYLVANIA

Method and device for treating osteoarthritis, cartilage disease, defects and injuries in the human knee

A method of determining the voltage and current output required for the application of specific and selective electric and electromagnetic signals to diseased articular cartilage in the treatment of osteoarthritis, cartilage defects due to trauma or sports injury, or used as an adjunct with other therapies (cell transplantation, tissue-engineered scaffolds, growth factors, etc.) for treating cartilage defects in the human knee joint and a device for delivering such signals to a patient's knee. An analytical model of the human knee is developed whereby the total tissue volume in the human knee may be determined for comparison to the total tissue volume of the diseased tissue in the animal model using electric field and current density histograms. The voltage and current output used in the animal model is scaled based on the ratio of the total tissue volume of the diseased tissue of the human to the total tissue volume of the diseased tissue in the animal model and the resulting field is applied to the diseased tissue of the human using at least two electrodes applied to the knee or a coil or solenoid placed around the knee. The voltage of the signal applied to the electrodes, coil or solenoid is varied based on the size of the knee joint; larger knee joints require larger voltages to generate the effective electric field.
Owner:THE TRUSTEES OF THE UNIV OF PENNSYLVANIA

Method for tissue culture and quick propagate technique of reddish blue spider lily

The invention discloses a method for the tissue culture of Lycoris haywardii and a rapid propagation technique. The method comprises the following: 1) a step of preparing culture mediums, and components of a basic culture medium and the culture mediums in every stage of tissue culture, as well as the weight of every component contained in each liter are as follows: the basic culture medium comprises MS or 1/2MS, wherein the basic culture medium comprises 20 to 40 g/L of sucrose and 8 g/L of agar and has the pH of 5.8; an induction culture medium comprises MS, 0.2 to 1.0 mg/L of TD and 2 g/L of activated carbon; a proliferation culture medium comprises MS, 3 to 7 mg/L of 6-BA and 0.5 to 2.5 mg/L of NAA; a strong seedling culture medium comprises MS, 0.5 to 2.5 mg/L of 6-BA and 0.5 to 1.5 mg/L of NAA; and a rooting culture medium comprises 1/2MS, 0.5 to 2.5 mg/L of KT, 0.5 to 2.5 mg/L IBA and 2 g/L of activated carbon; 2) a step of selecting and sterilizing explants; 3) a step of carrying out induction culture, proliferation culture, strong seedling culture and rooting culture; and 4) a step of domesticating and transplanting tissue culture seedlings. The method has the advantages that the induction rate of Lycoris haywardii buds reaches over 90 percent; the proliferation rate of each week is over 500 percent; the growth rate of the Lycoris haywardii buds is accelerated; the browning phenomenon of the explants is effectively prevented; and the rooting of the tissue culture seedlings is promoted at the same time when bulblet browning is prevented.
Owner:HANGZHOU BOTANICAL GARDEN +1

New Broussonetia papyrifera mulberry tree hybrid distant hybridization and polyploidization breeding method

ActiveCN103168676AInduction frequency is highFast nutrient absorptionPlant tissue cultureHorticulture methodsColchicineEmbryo
The invention priovidese a new Broussonetia papyrifera mulberry tree hybrid distant hybridization and polyploidization breeding method. The method is characterized in that an inductive hybrid fruit callus doubling distant hybridization polyploid hybrid line is established by an embryo engineering and tissue culture technique of distant hybrids through a reproduction engineering kind improvement technology. The method comprises following steps: 1, obtaining distant hybrid fruits; 2, carrying out callus induction of the hybrid fruits; 3, carrying out colchicine treatment of the callus of the hybrid fruits; 4, carrying out recovery culture of treated calluses; 5, differentiating the calluses into bud seedlings; 6, differentiating the bud seedlings into roots; 7, transplanting tissue culture plants; 8, carrying out comparative observation and selection of survival plants; and 9, carrying out asexual propagation of the selected plants to form a stable kind (line). The method solves the problems comprising slow growth,weak adaptability, unclear trunk and bad material quality of present Broussonetia papyrifera, and allows the new polyploid Broussonetia papyrifera mulberry tree hybrid having the advantages of obvious trunk, strong adaptability and good material quality to be cultivated.
Owner:HUBEI UNIV

Tissue culture method for ornithogalum caudatum

InactiveCN103141388ARapid propagation of seedlingsFacilitate factory seedling cultivationHorticulture methodsPlant tissue cultureGrowth coefficientBud
The invention relates to a tissue culture method for ornithogalum caudatum. The method comprises the following steps of: preparing culture media, selecting and sterilizing explants, primarily cultivating, inducing adventitious buds, growing of the adventitious buds, performing root induction on the adventitious buds, and domesticating and transplanting tissue culture seedlings. The basic culture medium selects an MS culture medium; the dosage of saccharose is 20-40 g/L; a coagulator is agar powder, and the dosage of the coagulator is 8-9 g/L; the pH of the culture medium is adjusted to 5.7-5.8 before being sub-charged; the initial culture medium comprises 0.1-0.5 mg/L of MS+6-BA and 0.05-0.2 mg/L of NAA; the adventitious bud induction culture medium comprises 2.0-4.0 mg/L of MS+6-BA and 0.05-0.2 mg/L of NAA; and the adventitious bud increment culture medium comprises 0.5-3.0 mg/L of MS+6-BA and 0.05-0.2 mg/L of NAA; and the rooting medium comprises 0-0.5mg/L of MS+IBA, or 0-0.5mg/L of 1/2MS+IBA. The method has the advantages that a built tissue culture and rapid propagation technique system for ornithogalum caudatum can reach a growth coefficient of 3-5, a rooting rate of 100% and a transplanting survival rate of 100%, and the tissue culture seedlings are healthy and even. Therefore, the method is suitable for detoxification and large-scale production of excellent ornithogalum caudatum seedlings.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Rooting method outside tissue culture seedling bottle of medicinal plant monochasma sheareri

The invention belongs to the technical field of herbal medicinal plant tissue culture, in particular to a rooting method outside a tissue culture seedling bottle of monochasma sheareri. The method mainly solves the technical problems of long rooting period in the tissue culture seedling bottle, more induced aerial roots, low transplanting survival rate and the like, and includes the following steps: (1) selecting bottle seedlings; (2) strong seedling cultivation; (3) hardening seedlings; (4) transplanting tissue culture seedlings; and (5) post-planting management. The method establishes an effective rooting technology outside the tissue culture seedling bottle of monochasma sheareri and optimizes the tissue culture and rapid propagation system. According to the technology, rooting is not required in a bottle, the seedlings are directly transplanted after hormone treatment, two weeks later, new roots can be seen at the base of the seedlings; after 30 days, the number of roots reaches 5-10, and the root length is 0.5-1.5cm; and in about two months, robust rooted seedlings of monochasma sheareri with a seedling height of about 6-10cm can be obtained. Compared with the traditional rooting in a bottle, the seedling raising period is shortened by one month, and the transplanting survival rate is higher than 85%; and by adopting the technology of the method, the rooting seedling quality is obviously improved, and industrial production can be carried out.
Owner:中国林业科学研究院亚热带林业实验中心

Method for transplanting tissue culture seedlings of dendrobium officinale

The invention discloses a method for transplanting tissue culture seedlings of dendrobium officinale. The method includes the steps that the tissue culture seedlings of dendrobium officinale are taken out, rinsed, disinfected and then transplanted to a soiless substrate, three to four days after the tissue culture seedlings are field-planted, a vitality element and a nutritional agent are sprayed to leaf surfaces in turn within a month respectively for eight to ten times, the vitality element or the nutritional agent is sprayed every day, and then conventional plantation management is executed. The method for transplanting the tissue culture seedlings of dendrobium officinale has the advantages that the vitality element and the nutritional agent are sprayed to the leaf surfaces of the tissue culture seedlings in turn, vitality of the seedlings is enhanced, the growth vigor of the seedlings is vigorous and robust, leaf color is strong green and glossy, the average height of the seedlings is 15cm after the seedlings are transplanted for half a year, and the average thickness of rootstocks is 0.5cm; disease resistance of the seedlings is improved, and the seedlings are barely diseased; the transplanting survival rate is greatly increased and can reach more than 98%.
Owner:GUANGXI SENXIANYUAN BIOLOGICAL SCI & TECH

Method of growing seedling of kiwi with red core

The invention provides a method of growing seedling of a kiwi with a red core, belongs to the technical field of planting. The method comprises the following steps: selecting and sterilizing explants, inducing rooting, inducing buds and transplanting tissue culture seedlings. According to the method of growing seedling of the kiwi with the red core, a rooting inducing solution and a bud inducing solution are highly targeted and well applicative. The use of sponges as attachment of the solution enables the explants to have normal aerobic respiration and effectively avoid the explants necrosis caused by the lack of oxygen supply of a traditional culture medium, the rooting inducing culture is designed before the bud inducing culture, the phenomenon of new bus necrosis caused by the lack of nutrition when the traditional bud inducing culture is designed in the first is effectively avoided, and in the buding stage, the unique linear variation design of the light intensity enables the explants to grow buds fast and form the tissue culture seedlings. The tests prove that the rooting rate of the explants of kiwi with the red core is 95% or more and the germination rate is 96% or more, and transplant survival rate is 95% or above by using the method of growing seedling of the kiwi with the red core.
Owner:贵州村华秋实现代生态农业有限公司

Method for simply transplanting tissue culture seedlings of eucalyptus urophylla * E. grandis

The invention discloses a method for simply transplanting tissue culture seedlings of eucalyptus urophylla * E. grandis. The method comprises the following steps: (1) transferring the tissue culture seedlings taking root well and a culture bottle from a constant-temperature illumination culture box to the outdoor natural environment so as to acclimatize the seedlings; (2) after the seedlings are acclimatized, using a pair of tweezers to take out the tissue culture seedlings in the culture bottle, and using sterile water to rinse agar on root systems of the tissue culture seedlings; (3) placing the rinsed tissue culture seedlings in potassium permanganate solution, soaking for 30 seconds, and using the sterile water to rinse the tissue the culture seedlings after the tissue culture seedlings are taken out; (4) transplanting the rinsed tissue culture seedlings in a cultivation base material, and using the cultivation base material to cover the roots systems of the tissue culture seedlings during the transplanting process; (5) spraying carbendazim on the tissue culture seedlings for one time after transplantation is finished so as to wet 1/3-1/2 of the upper portion of the cultivation base material; (6) preserving moisture and heat of the tissue culture seedlings until sprouts of the tissue culture seedlings germinate; and (7) transplanting the sprouts of the tissue culture seedlings into the field so as to be cultivated in one week after the sprouts of the tissue culture seedlings germinate. The transplanting survival rate can be over 98%.
Owner:ZHANJIANG NORMAL UNIV

Rapid propagation method of Hydrangea macrophylla

The invention belongs to the technical field of forestry vegetative propagation, and particularly relates to a rapid propagation method of Hydrangea macrophylla. The method comprises the following steps: (1) carrying out sterile disinfection treatment by taking a stem section of the Hydrangea macrophylla as an explant; (2) cutting the Hydrangea macrophylla stem section treated in the step (1) intoHydrangea macrophylla stem sections each with at least one axillary bud, inoculating the Hydrangea macrophylla stem sections into a culture medium, and germinating the axillary buds; (3) when the axillary buds in the step (2) extend to a certain length, cutting off the axillary buds, inoculating the axillary buds into a culture medium, and carrying out proliferation on the axillary buds to obtaina large number of axillary buds; (4) inoculating the axillary buds in the step (3) into a culture medium, and carrying out induction culture to form rooting seedlings; and (5) transplanting tissue culture seedlings in the step (4), namely the rooting seedlings, into a matrix, and carrying out culture to obtain Hydrangea macrophylla aseptic seedlings with robust rhizomes. The method has the advantages of being high in propagation speed and large in propagation coefficient, and is not limited by seasons and propagation materials.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY
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