I-Corps: Ferrate Technology in Healthcare Surfaces Disinfection

I-Corps：医疗表面消毒中的高铁酸盐技术

• 批准号: 1637040
• 负责人: Virender Sharma
• 金额: $ 5万
• 依托单位: The Texas A&M University System HSC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-04-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1637040&HistoricalAwards=false
• 关键词: Corps; Ferrate; Technology; Healthcare; Surfaces

There has been increasing concern of infections related to visit to hospitals, called hospital-acquired infections (HAIs). HAIs have resulted in significant cases of mortality. Approximately fifty percent of such susceptible to death circumstances are related to not properly cleaning (or disinfecting) the surfaces such as hospital beds, hospital room floors, and medical devices. The common disinfectants used are bleach (i.e. sodium hypochlorite), hydrogen peroxide, and salt containing central positively charged nitrogen atom surrounded by four organic groups (or quaternary salts). These disinfectants can clean the surfaces effectively, but in performing their disinfection functions destroy hospital equipment and materials. In additions, these disinfectants have off putting odor and also cause irritation to eyes and skin to end users. In this proposal, a liquid ferrate molecule, which is based on iron and oxygen atoms, is proposed to address the problems associated with currently used disinfectants. In the laboratory, ferrate has shown tremendous potential to inactivate a wide range of microorganisms. A recent patented liquid ferrate technology, which solved the inherent issues related to stability of ferrate in solution from, will be tested for its commercial viability as a surface disinfectant. The successful implementation of ferrate technology will decrease the cost burden to hospitals by applying safer approachesFerrate has been shown to be an effective oxidant, coagulant, and disinfectant for treating water and wastewater. Significantly, ferrate is a capable disinfectant due to its ability to inactivate a wide variety of microorganisms at a low dosage. Most of the research on ferrate as a disinfectant has been carried out in an aqueous environment. Ferrate has potential in disinfecting surfaces that carry several harmful bacteria that cause HAIs. However, no study has been performed on ferrate as a potential surface disinfectant. This I-Corps team's main approach is to evaluate disinfection capabilities of ferrate on environmental surfaces, especially in healthcare settings. In the proposed work, two methodologies will be applied to seek the applicability of ferrate as a disinfectant in healthcare settings. Initially, the intensive market evaluation of surface disinfectants will be done, followed by best practice to commercialize the liquid ferrate product as a surface disinfectant for healthcare facilities. The market evaluation will provide information whether the ferrate technology stands in comparison with currently available market disinfectant products to the health care facility customers. Finally, the physical properties (i.e., staining of surfaces/clothes/skin, odor) and interactions with hospital materials (e.g., glass, fabric, ceramic, metal, and plastic) will be examined after the ferrate treatment. Evaluations include visual inspection, photographs, silk tests, smell, and discoloration of material. The proposed successful systematic investigations on technological feasibilities and market evaluation of liquid ferrate product to clean surfaces of health care facilities will demonstrate the feasibility of ferrate technology to the health care facilities.

人们越来越关注与医院就诊有关的感染，称为医院获得性感染（HAI）。 HAI已导致大量死亡病例。 大约50%的这种易受死亡影响的情况与没有正确清洁（或消毒）表面有关，例如医院病床、医院房间地板和医疗设备。 常用的消毒剂有漂白剂（即次氯酸钠）、过氧化氢和含有中心带正电氮原子并被四个有机基团包围的盐（或季盐）。 这些消毒剂可以有效地清洁表面，但在执行其消毒功能时会破坏医院设备和材料。 此外，这些消毒剂具有令人讨厌的气味，并且还对最终用户的眼睛和皮肤造成刺激。 在该提案中，提出了一种基于铁和氧原子的液体高铁酸盐分子，以解决与目前使用的消毒剂相关的问题。 在实验室中，高铁酸盐已显示出灭活多种微生物的巨大潜力。 最近的一项专利液体高铁酸盐技术，解决了固有的问题，高铁酸盐在溶液中的稳定性，将测试其作为表面消毒剂的商业可行性。高铁酸盐技术的成功实施将通过采用更安全的方法来降低医院的成本负担。高铁酸盐已被证明是一种有效的氧化剂、混凝剂和消毒剂，用于处理水和废水。值得注意的是，高铁酸盐是一种有效的消毒剂，因为它能够以低剂量杀灭各种微生物。大部分关于高铁酸盐作为消毒剂的研究都是在水环境中进行的。 高铁酸盐具有消毒表面的潜力，携带几种有害细菌，导致HAIs。 然而，尚未对高铁酸盐作为潜在的表面消毒剂进行研究。 这个I-Corps团队的主要方法是评估高铁酸盐对环境表面的消毒能力，特别是在医疗环境中。 在拟议的工作中，将采用两种方法来寻求高铁酸盐作为消毒剂在医疗保健环境中的适用性。 首先，将对表面消毒剂进行深入的市场评估，然后采用最佳实践将液体高铁酸盐产品作为医疗保健机构的表面消毒剂商业化。 市场评价将为医疗机构客户提供高铁酸盐技术与当前市售消毒剂产品相比的信息。 最后，物理性质（即，表面/衣服/皮肤的染色，气味）和与医院材料的相互作用（例如，玻璃、织物、陶瓷、金属和塑料）将在高铁酸盐处理后进行检查。 评估包括目视检查、照片、丝绸测试、气味和材料变色。 通过对高铁酸盐液体产品用于医疗机构表面清洁的技术可行性和市场评价的系统研究，论证了高铁酸盐技术应用于医疗机构表面清洁的可行性。