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Calcium phosphate conversion technique:A versatile route to develop corrosion resistant hydroxyapatite coating over Mg/Mg alloys based implants 被引量:2
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作者 G.S.Hikku C.Arthi +2 位作者 R.B.Jeen Robert K.Jeyasubramanian R.Murugesan 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2022年第7期1821-1845,共25页
Globally,vast research interest is emerging towards the development of biodegradable orthopedic implants as it overcomes the toxicity exerted by non-degradable implants when fixed in the human body for a longer period... Globally,vast research interest is emerging towards the development of biodegradable orthopedic implants as it overcomes the toxicity exerted by non-degradable implants when fixed in the human body for a longer period.In this context,magnesium(Mg)plays a major role in the production of biodegradable implants owing to their characteristic degradation nature under the influence of body fluids.Also,Mg is one of the essential nutrients required to perform various metabolic activities by the human cells,and therefore,the degraded Mg products will be readily absorbed by the nearby tissues.Nevertheless,the higher corrosion rate in the biological environment is the primary downside of using Mg implants that liberate H2gas resulting in the formation of cavities.Further,in certain cases,Mg undergoes complete degradation before the healing of damaged bone tissue and cannot serve the purpose of providing mechanical support.So,many studies have been focused on the development of different strategies to improve the corrosion-resistant behavior of Mg according to the requirement.In this regard,the present review focused on the limitations of using pure Mg and Mg alloys for the fabrication of medical implants and how the calcium phosphate conversion coating alters the corrosive tendency through the formation of hydroxyapatite protective films for enhanced performance in medical implant applications. 展开更多
关键词 Biodegradable implants MAGNESIUM Controlled corrosion ALLOYING HYDROXYAPATITE Calcium phosphate conversion coating
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Social prescribing for healthy aging:sustaining social capital in India
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作者 Geetha Mani 《Family Medicine and Community Health》 2017年第3期208-210,共3页
The proportion of the geriatric population is increasing globally,and the resultant demographic burden is becoming a significant public health concern.Apart from physical ill health associated with aging,social change... The proportion of the geriatric population is increasing globally,and the resultant demographic burden is becoming a significant public health concern.Apart from physical ill health associated with aging,social changes such as urbanization,migration,breakdown of the joint family system,inadequate living space,and the generation gap have a negative impact on the mental well-being of elderly people.Countries need to adopt a holistic approach.Social prescribing or community referral comprises a plethora of possible nonmedical interventions aimed at supporting people with mental health needs.Social prescribing projects in developed countries have shown significant results in terms of improved quality of life,self-confidence,social belonging,reduced physician visits,and reduced prescription of psychotropic medications.Suitable adoption of social prescribing measures in developing countries could be an effective step in converting the demographic burden of the geriatric population into a significant social capital contributing to the well-being of elderly people as well as the country. 展开更多
关键词 Social prescribing community referral ELDERLY GERIATRIC mental health
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