共查询到20条相似文献,搜索用时 62 毫秒
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概述了热显影卤化银彩色照相材料的发展过程,介绍了这种照相材料的构成、成像原理以及所用主要有机材料的结构类型。 相似文献
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纳米技术在高分子材料中的应用 总被引:5,自引:0,他引:5
纳米技术在高分子材料中的应用主要包括:将纳米粉体添加到高分子材料基体中改性,单体在无机填料层进行插层聚合和高分子树脂直接插入无机填料层间,制备纳米插层复合材料,通过嵌段共聚合成纳米结构材料,以及在高分子基料上进行的自组装纳米结构材料。 相似文献
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《无机硅化合物(天津)》2007,(3):57-58
近年来,纳米技术及材料所取得成就及其对各个领域的影响和渗透一直非常引人注目,特别是其在环境保护与治理方面的应用,已经呈现出欣欣向荣的景象。 相似文献
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本文介绍了纳米技术在高分子材料改性中的应用,重点介绍了该技术在橡胶、塑料、化学纤维中的典型应用与研究现状,简要介绍了纳米技术特性产生的机理,指出了纳米技术在高分子材料改性应用中的诱人前景。 相似文献
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溶胶-凝胶纳米技术与镀膜功能玻璃材料 总被引:2,自引:0,他引:2
以镀膜玻璃的功能为主线,论述了溶胶凝胶纳米技术在玻璃领域的应用,说明了玻璃表面涂上TiO2纳米粒子和SiO2与TiO2混合纳米粒子薄膜后所具有的各种功能和作用,展示了其在今后社会生活中的应用前景. 相似文献
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Masayuki Endo Dr. Hiroshi Sugiyama Prof. Dr. 《Chembiochem : a European journal of chemical biology》2009,10(15):2420-2443
Due to its self‐assembling nature, DNA is undoubtedly an excellent molecule for the creation of various multidimensional nanostructures and the placement of functional molecules and materials. DNA molecules behave according to the programs of their sequences. Mixtures of numbers of DNA molecules can be placed precisely and organized into single structures to form nanoarchitectures. Once the appropriate sequences for the target nanostructure are established, the predesigned structure can be built up by self‐assembly of the designed DNA strands. DNA nanotechnology has already reached the stage at which the organization of desired functional molecules and nanomaterials can be programmed on a defined DNA scaffold. In this review, we will focus on DNA nanotechnology and describe the potential of synthetic chemistry to contribute to the further development of DNA nanomaterials. 相似文献
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Samaneh Mashaghi Tayebeh Jadidi Gijsje Koenderink Alireza Mashaghi 《International journal of molecular sciences》2013,14(2):4242-4282
Nanotechnology is a multidisciplinary field that covers a vast and diverse array of devices and machines derived from engineering, physics, materials science, chemistry and biology. These devices have found applications in biomedical sciences, such as targeted drug delivery, bio-imaging, sensing and diagnosis of pathologies at early stages. In these applications, nano-devices typically interface with the plasma membrane of cells. On the other hand, naturally occurring nanostructures in biology have been a source of inspiration for new nanotechnological designs and hybrid nanostructures made of biological and non-biological, organic and inorganic building blocks. Lipids, with their amphiphilicity, diversity of head and tail chemistry, and antifouling properties that block nonspecific binding to lipid-coated surfaces, provide a powerful toolbox for nanotechnology. This review discusses the progress in the emerging field of lipid nanotechnology. 相似文献
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《纳米材料与纳米技术》是无机非金属材料工程专业的一门选修课。为取得良好的教学效果,结合课程特点和学生情况,从该门课程的教学目的、教学内容、教学方法以及课程考核等方面进行了系统的探索和改革,实践证明,这些举措的实施基本达到了预期的目的,培养了学生的科学精神和创新能力。 相似文献
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Satnam Singh Sachin Mishra Song Juha Manojit Pramanik Parasuraman Padmanabhan Balzs Gulys 《International journal of molecular sciences》2021,22(11)
The development of a biomimetic neuronal network from neural cells is a big challenge for researchers. Recent advances in nanotechnology, on the other hand, have enabled unprecedented tools and techniques for guiding and directing neural stem cell proliferation and differentiation in vitro to construct an in vivo-like neuronal network. Nanotechnology allows control over neural stem cells by means of scaffolds that guide neurons to reform synaptic networks in suitable directions in 3D architecture, surface modification/nanopatterning to decide cell fate and stimulate/record signals from neurons to find out the relationships between neuronal circuit connectivity and their pathophysiological functions. Overall, nanotechnology-mediated methods facilitate precise physiochemical controls essential to develop tools appropriate for applications in neuroscience. This review emphasizes the newest applications of nanotechnology for examining central nervous system (CNS) roles and, therefore, provides an insight into how these technologies can be tested in vitro before being used in preclinical and clinical research and their potential role in regenerative medicine and tissue engineering. 相似文献
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Brain tumors such as glioblastoma are typically associated with an unstoppable cell proliferation with aggressive infiltration behavior and a shortened life span. Though treatment options such as chemotherapy and radiotherapy are available in combating glioblastoma, satisfactory therapeutics are still not available due to the high impermeability of the blood–brain barrier. To address these concerns, recently, multifarious theranostics based on nanotechnology have been developed, which can deal with diagnosis and therapy together. The multifunctional nanomaterials find a strategic path against glioblastoma by adjoining novel thermal and magnetic therapy approaches. Their convenient combination of specific features such as real-time tracking, in-depth tissue penetration, drug-loading capacity, and contrasting performance is of great demand in the clinical investigation of glioblastoma. The potential benefits of nanomaterials including specificity, surface tunability, biodegradability, non-toxicity, ligand functionalization, and near-infrared (NIR) and photoacoustic (PA) imaging are sufficient in developing effective theranostics. This review discusses the recent developments in nanotechnology toward the diagnosis, drug delivery, and therapy regarding glioblastoma. 相似文献
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Soumya Sethi Prof. Dr. Hiroshi Sugiyama Prof. Dr. Masayuki Endo 《Chembiochem : a European journal of chemical biology》2022,23(6):e202100446
At the cellular level, numerous nanocues guide the cells to adhere, interact, proliferate, differentiate, etc. Understanding and manipulating the cellular functions in vitro, necessitates the elucidation of these nanocues provided to the cells by the extracellular matrix (ECM), neighbouring cells or in the form of ligands. DNA nanotechnology is a biocompatible, flexible and a promising molecular level toolkit for mimicking cell-cell and cell-matrix interactions. In this review, we summarize various advances in cell-matrix, cell-cell and cell receptor-ligand interactions using DNA nanotechnology as a tool. We also provide a brief outlook on the current challenges and the future potentials of these DNA-based nanostructures so as to inspire novel innovations in the field. 相似文献
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Sebastian Makuch Mateusz Drd Alicja Makarec Piotr Zikowski Marta Wo
niak 《International journal of molecular sciences》2022,23(17)
Psoriasis (PS) is an immune-mediated skin disease with substantial negative effects on patient quality of life. Despite significant progress in the development of novel treatment options over the past few decades, a high percentage of patients with psoriasis remain undertreated and require new medications with superior long-term efficacy and safety. One of the most promising treatment options against psoriatic lesions is a form of phototherapy known as photodynamic therapy (PDT), which involves either the systemic or local application of a cell-targeting photosensitizing compound, followed by selective illumination of the lesion with visible light. However, the effectiveness of clinically incorporated photosensitizers in psoriasis treatment is limited, and adverse effects such as pain or burning sensations are frequently reported. In this study, we performed a literature review and attempted to provide a pooled estimate of the efficacy and short-term safety of targeted PDT in the treatment of psoriasis. Despite some encouraging results, PDT remains clinically underutilized. This highlights the need for further studies that will aim to evaluate the efficacy of a wider spectrum of photosensitizers and the potential of nanotechnology in psoriasis treatment. 相似文献