Results 281 to 290 of about 100,855 (336)
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Novel Superhydrophobic Aerogel on the Base of Polytetrafluoroethylene.
ACS Applied Materials and Interfaces, 2019Polytetrafluoroethylene-based aerogel was synthesized for the first time. Graphene oxide was used as a binder. After reduction with hydrazine and annealing at 370°C, the aerogel with a density of 29 ± 2 mg/cm3 became superhydrophobic.
S. Baskakov +5 more
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Deformation mechanisms of polytetrafluoroethylene at the nano- and microscales.
Physical Chemistry, Chemical Physics - PCCP, 2018Polytetrafluoroethylene (PTFE) has not only a low coefficient of friction but also a high wear rate. Numerous studies investigating the possibility of reducing wear and the mechanisms of deformation have been conducted using experimental and ...
Matthew Brownell, A. Nair
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Interpositional Polytetrafluoroethylene Grafts
Ophthalmic Plastic & Reconstructive Surgery, 1991Polytetrafluoroethylene (PTFE) is a synthetic, woven, nonabsorbable, nonantigenic, Teflon-related material that has been shown to be useful in correcting eyelid retraction and as an implant enveloping material in primary and secondary surgery to correct anophthalmos.
J W, Karesh +2 more
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FEMOROPOPLITEAL BYPASS USING POLYTETRAFLUOROETHYLENE
Australian and New Zealand Journal of Surgery, 1980Reinforced expanded polytetrafluoroethylene (PTFE) was used as a femoropopliteal bypass graft in 31 patients (37 operations). The indications were intermittent claudication (13 operations), severe ischaemia with rest pain or gangrene (20 operations), and prophylactic treatment of popliteal aneurysms (4 operations), the one‐year accumulative patency ...
T J, Devine +3 more
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Surgical Principles and Polytetrafluoroethylene
Archives of Surgery, 1979This report describes a 24-month follow-up in 100 consecutive polytetrafluoroethylene (PTFE) arterial grafts. Although initial results were superb, a continued follow-up has showed extremely high closure rates for femoropopliteal and femorotibial grafts. The primary reason for this high attrition rate is thought to be stasis.
H C, Stansel +3 more
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Hyaluronan enhancement of expanded polytetrafluoroethylene cardiovascular grafts
Journal of Biomaterials Applications, 2018Heart disease continues to be the leading cause of death in the United States. The demand for cardiovascular bypass procedures increases annually. Expanded polytetrafluoroethylene is a popular material for replacement implants, but it does have drawbacks
H. Bui +4 more
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Polytetrafluoroethylene Hemoaccess Site Infections
ASAIO Journal, 2000The advent of permanent hemodialysis access has made possible the use of chronic hemodialysis in patients with end-stage renal disease. Although autogenous arteriovenous fistulae remain the conduit of choice, their construction is not always feasible.
J E, Anderson, A S, Chang, M P, Anstadt
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Polytetrafluoroethylene Grafts for Carotid Repair
Cardiovascular Surgery, 1996Polytetrafluoroethylene grafts are well established for bypassing occlusive disease in the lower limb but there are few reports which deal with the long-term results of such grafts in the neck. The present study was undertaken to evaluate the immediate and long-term results of polytetrafluoroethylene grafts for carotid repair.
J P, Becquemin +4 more
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