纳米科技在医学领域的应用前景

纳米科学技术是在纳米尺度范围内认识和改造自然的科学 .采用纳米技术可以直接操作和排列原子与分子 ,可以创造新物质 .纳米科学技术与医学相结合 ,对医学的发展会产生巨大的促进作用 ,从而更好地为人类健康与延年益寿造福于全人类 .1　纳米科技与医学纳米 (ｎａｎｏｍｅｔｅｒ,ｎｍ)是一个尺度单位 ,1纳米即 1毫微米 ,等于十亿分之一米 ,约为10个原子之和的尺度 .纳米科学技术 (ｎａｎｏｓｃｉｅｎｃｅａｎｄｔｅｃｈｎｏｌｏｇｙ ,ＮＳＴ)是指运用原子、分子制造物质的科学技术 .也就是在单个原子、分子层次上对物质存在的种类、数量、结…     

Internet在医学领域的应用及发展

在阔步进入二十一世纪之际 ,医学科学技术飞速发展 ,知识创新总量迅速增加 ,Internet也正以迅猛之势席卷电脑界、医学界和其他各种行业。面对纷繁复杂的信息 ,Internet的崛起和信息高速公路的兴建 ,使人们处理和传播医学信息的能力空前增加。本文讨论了 Internet在医学领域的应用及发展。1　 Internet的医学信息资源极大地满足了医学工作者的需要Internet不仅向用户提供了全球范围的快速通信手段 ,而且 Internet本身已经构成了人类有史以来最大的全球信息资源系统。在这个信息的海洋里 ,Internet提供的和医学信息有关的服务种类极其丰富…     

生物传感器在医学中新的应用

生物传感器作为一项新兴的科学技术已应用于医学检验分析领域中,是近来国际上医学检测技术的热点之一.本文对国内外近几年光学、电化学和压电3种生物传感器及其应用的研究进行了综合评述.     

生物传感器在医学中新的应用

生物传感器作为一项新兴的科学技术已应用于医学检验分析领域中，是近来国际上医学检测技术的热点之一。本文对国内外近几年光学、电化学和压电3种生物传感器及其应用的研究进行了综合评述。     

磁性微球在生物医学领域中的应用进展

磁性微球（Magneticmicrospheres,MMS）是近年发展起来并已广泛应用于生物医学领域的一种新型多功能试剂。     

POCT在检验医学领域的应用进展

关于POCT（Point—of—Care Testing）这一外来词汇，中文可翻译为“床旁检测”、“即时检测”等名称。POCT是指在患者身边分析患者样品的一种检测技术，它能在患者床旁、护理部、病房或检验科以外的其它地方进行，其主要特点是操作简单、使用方便、结果快速、设备小型化。随着检验医学技术的飞速发展，POCT在检验医学领域的应用取得了长足的发展，目前与传统的检验手段一起，     

虚拟现实在医学中的应用进展

虚拟现实（ｖｉｒｔｕａｌ ｒｅａｌｉｔｙ，ＶＲ）是近年来发展起来的一项新的技术，它已经被广泛地应用于许多领域。本文介绍了虚拟现实技术在疾病的诊断、康复以及医学教育与培训方面的应用，并展望了虚拟现实技术在医学中的应用前景。     

智能问答系统在医学领域的应用研究

智能问答系统可以快速、准确地为用户提供信息服务,是自然语言处理领域的备受关注的研究方向。在医学知识服务领域,也具有很好的应用前景和发展空间。论文首先简述了医学领域智能问答系统的研究情况,其次就医学智能问答系统中的问题分析、信息检索、答案抽取三个组成部分及其关键技术进行了分别阐述;最后对其在中医方面的应用进行了阐述,并对医学智能问答系统的进一步发展提出了展望。     

虚拟现实在医学中的应用进展

虚拟现实 ( virtual reality,VR)是近年来发展起来的一项新的技术 ,它已经被广泛地应用于许多领域 ,特别是在医学领域。本文介绍了虚拟现实技术在疾病的诊断、康复以及医学教育与培训方面的应用 ,并展望了虚拟现实技术在医学中的应用前景     

数据仓库及其在医学领域中的应用

本文介绍了数据仓库和数据集市的基本概念，并通过数据仓库在医学领域中的应用，说明了创建数据仓库的一般方法。     

Design optimisation of planar electrolytic conductivity sensors

Planar conductivity sensors are the subject of increasing interest as basic transducers for biosensors. The high degree of control of the performance characteristics undoubtedly forms an important argument in favour of conductivity-based sensing. The paper provides an outline of the design rules to be followed if an optimal design of a planar conductivity cell is required. Based on a simplified model, it is shown that the required accuracy establishes a lower limit to the overall sensor dimensions. This lower limit is expressed as a minimum longitudinal path length necessary to obtain the desired accuracy. Given an available area, the optimum ratio of electrode-width over inter-electrode spacing for a basic two-electrode structure is shown to be close to unity. Furthermore, it is shown that the decomposition of the two electrodes into an interdigitated structure decreases the accuracy of the device if all other parameters are considered constant. If the sensing region has to be limited to within a thin sensitive layer, the splitting is proposed of one of the electrodes into a compound electrode. The optimum lay-out of this compound structure is calculated as a function of the layer thickness.     

纳米纤维素在柔性传感器中的应用EI北大核心CSCD

医疗资源紧缺推进医疗方式变革,智能医疗正在成为解决医疗资源短缺问题的理想方法。随着互联网的发展,人们期待使用柔性医疗保健系统在居家状态下实现实时健康状态监测,这对传感器所需使用的柔性基材提出了新需求。目前所使用的柔性基材一般是传统的石油基聚合物,不可再生。纤维素作为一种天然聚合物,具有来源广泛,加工方便以及可生物降解等优点,是一种可以替代石油基聚合物的理想材料。本文综述纳米纤维素在柔性传感器中的应用进展,首先介绍纤维素及纳米纤维素的结构及改性方法,然后归纳了纳米纤维素柔性传感器在实时医疗监测中的应用,最后讨论了纳米纤维素在柔性传感器领域的优势及面临的挑战。     

绿色荧光蛋白GFP的研究进展及应用

源于多管水母属等海洋无脊椎动物的绿色荧光蛋白(GFP),是一种极具应用潜力的标记物,有着极其广泛的应用前景.我们就GFP的理化性质、荧光特性、改进和应用研究进行了综述.     

Fibre-optics and optical sensors in medicine

A number of new optical techniques for both thein vivo identification of blood analytes and the measurement of physical properties of interest to the clinician have recently been developed. These optical transducers are based on glass or plastic fibres, fractions of a millimetre (100–250 μm) in diameter, as found in fibre-optic communication systems. These sensors offer a number of advantages for physiological applications over their conventional electrical counterpart, the most important of which are: their non-electrical nature; the operating optical signal is not subject to electrical interference; the fibre allows a high degree of mechanical flexibility combined with very small size and low-cost disposable construction; materials suitable for long-term implantation, e.g. plastics, may be used in their construction. Optical sensors fall into three categories: (a) the photometric or bare-ended fibre; (b) the physical sensor which is used to measure temperature and pressure; and (c) the chemical sensors or ‘optrodes’ based on the immobilisation of a reagent phase on the end of the fibre. Clinical sensors based on fibre-optics, although clearly attractive in concept, are mostly in the developmental stage. However, the devices developed to date already illustrate the potential systems that are possible with this expanding technology.     

牙髓干细胞在再生医学中的应用研究与进展

BACKGROUND:Dental pulp stem cells are characterized by multi-lineage differentiation and proliferation abilities and are easy to obtain, so they are becoming an issue of concern in regenerative medicine. OBJECTIVE:To provide clues and direction for further study by analyzing progress of domestic and overseas research on dental pulp stem cells, and summarizing their application in regenerative medicine. METHODS:The “dental pulp stem cell, regenerative medicine, tissue engineering” in Chinese and English served as the search terms to search articles related to dental pulp stem cells and regenerative medicine, published from 2000 to 2015 in Medline, PubMed, CNKI, Wanfang and Cqvip databases. Totally 46 articles were selected for overview.  RESULTS AND CONCLUSION:Dental pulp stem cells, which hold the capacity of self-renewal and multi-lineage differentiation, are relatively easy to obtain, and exhibit a great potential in regenerative medicine. The research of dental pulp stem cells in repairing bone defects has entered the clinical trial phase, but the research of cell differentiation into other tissues is still in basic trial phase and needs further development.     

Spinal cord and hypothalamus as core sensors of temperature in the conscious dog

Summary In two conscious dogs at standardized external conditions, the temperatures of the spinal cord and hypothalamus were altered simultaneously and were correlated with heat production (shivering) and respiratory evaporative heat loss (panting).Combined cooling of spinal cord and hypothalamus at 18, 24, and 30°C air temperature increased heat production by up to 10.2 Kcal/(kg·h). Combined heating of the spinal cord and hypothalamus at the same environmental conditions increased respiratory evaporative heat loss by up to 4.5 Kcal/(kg·h).Compared with the effects of cooling either the spinal cord or the hypothalamus, cooling both together increased the slope of the regression and elevated the threshold temperatures for shivering. With regard to respiratory evaporative heat loss, heating the spinal cord and hypothalamus together mainly lowered the threshold temperatures as compared with warming each area independently.The results suggest that temperature signals, simultaneously generated in spinal cord and hypothalamus, are added to give a combined drive to the effector systems.     

生物人工肝的支架材料研究进展

用于构建生物人工肝的关键材料包括生物材料及支架材料，前者主要指肝细胞，肝非实质细胞等细胞材料，后者主要指用于构建生物反应系统的膜或其它支架材料，此类材料的性能直接关系到肝细胞的生长及代谢功能，与人工肝的支持效果密切相关，本文将近年研究较多的生物人工肝支架材料作一综述。     

SARS病毒研究进展

严重急性呼吸综合征 (SevereAcuteRespiratorySyndrome ,SARS)是由SARS病毒引起的一种急性呼吸道传染病 ,主要通过近距离空气飞沫和密切接触传播。SARS病毒是冠状病毒的一个变种 ,以前从未在人类或其它动物中发现。基因组全长约为 3 0Kb ,主要编码五种与病毒侵入、复制有关的结构蛋白 (RNA聚合酶、S、M、E、N蛋白 ) ,这些蛋白质的结构和功能对于今后设计疫苗和抗病毒药物至关重要。到目前为止 ,致病机理还不十分清楚。SARS病毒感染的实验室检测方法主要有细胞培养、分子生物学检测和抗体检测