Biomedical Engineering Embedding Stem Cells in Sutures

Johns Hopkins biomedical engineering students recently received first prize in the university’s Design Day 2009 competition for the demonstration of a practical method to place a patient’s adult stem cells into sutures. Sutures (for instance Ethicon suture Covidien suture, Autosuture) is the surgical needle that is used to close wounds by doctors. Suture needles are used to sew sutures to the tissue.

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This specific technique that embeds adult stem cells in surgical thread was created to treat severe orthopedic injuries like ruptured tendon. The goal of this technique is to improve the healing process by decreasing inflammation and speeding up healing through the release of growth factor proteins. The chance of re-injury will be decreased as well. Since the cells come directly from patients, reject will not be a problem. So far preliminary test results are promising-indications show that the cells attached to the sutures survive the wound closure process and keep the ability to become replacement tissue such as cartilage.

The project was a series of phases. Bioactive Surgical was the corporate patron who invented the patent-pending idea of the suture-based embedding of cells and then arranged for the student group to conduct the tests. In the beginning, the team required a tool capable of producing sutures that would ensure the viability of the cells as well as efficiently deliver them to the tissue. Students from the undergraduate level working in conjunction with orthopedic surgeons, began to test stem cell sutures on animals in the hope that stem cells would greatly speed up and speed up your healing. Students also dealt with aspects like the preparation of grant applications for additional funds.

The procedure could be as follows: The doctor would collect stem cells from bone marrow that is found in the hip of the patient, insert stem cells in the new suture by an exclusive process that stitches the injured area using normal suture needles that are specially designed sutures.

Currently tendon repair surgeries are performed using sutures that are conventional, including those of the brand names Ethicon suture Covidien suture Autosuture or using the Ethicon products for wound closure.

There are numerous methods for testing water that are used worldwide

Protect Your Family by Testing For Common Water Quality Problems

Testing for water quality is generalization of techniques used to assess the quality of water in various areas. Each water source is tested when designing for public systems of water supply. some private water companies are also conducting water tests regularly. Numerous testing of water quality are conducted daily across the globe to ensure constant security and adhere to regulatory guidelines. The main benefit of routine testing of water is that it provides an ongoing water safety guarantee and to avoid massive water damage that can be costly and damaging to both property and the people who live in it. In the absence of testing for water, it can lead to expensive improvements which might have been prevented and the cost of these upgrades could be lowered due to the prompt testing of water sources.

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There are numerous methods for testing water that are used worldwide. This includes water sampling as well as point of measurement as well as direct water testing and water treatment facilities and the municipal facilities for water treatment. Sampling and point-of-use measurement generally refers to the collection of random water samples at certain water sources for a predetermined time frame to assess the quality. Direct water testing utilizes the use of a pump to provide water directly to a specific faucet, whereas point of use measurements utilize closed water systems which delivers water directly to the device that is being examined. While point of use tests is quick but it can also have the potential to expose the occupants of the house or the building to dangerous contaminants.

Regular water tests can help determine the presence of contaminants and keep your business or home well-equipped to reduce health risks. If you live in areas where extreme weather conditions can be a problem it is recommended to test your water for flash floods or heavy rains. The presence of contaminants can be seen in ground water when it is used to support agricultural uses or industrial purposes, as well as in hydropower production. Filtering equipment for water at home will remove harmful contaminants from tap water and provide additional health benefits by getting rid of harmful contaminants such as pesticides and herbicides.