Nanofabrication最新文献_第7页

Patterning of Quantum Dots by Dip-Pen and Polymer Pen Nanolithography 浸笔和聚合物笔纳米光刻的量子点图像化

IF 2.9

Nanofabrication Pub Date : 2015-05-06 DOI: 10.1515/nanofab-2015-0002

Soma Biswas, Falko Brinkmann, Michael Hirtz, H. Fuchs

引用次数: 19

Transport characteristics of focused beam deposited nanostructures 聚焦束沉积纳米结构的输运特性

IF 2.9

Nanofabrication Pub Date : 2015-02-18 DOI: 10.1515/nanofab-2015-0001

A. Ballestar, P. Esquinazi

引用次数: 7

Lipid nanotube networks: Biomimetic Cell-to-Cell Communication and Soft-Matter Technology 脂质纳米管网络:仿生细胞间通讯和软物质技术

IF 2.9

Nanofabrication Pub Date : 2015-01-08 DOI: 10.1515/nanofab-2015-0003

Irep Gözen, A. Jesorka

{"title":"Lipid nanotube networks: Biomimetic Cell-to-Cell Communication and Soft-Matter Technology","authors":"Irep Gözen, A. Jesorka","doi":"10.1515/nanofab-2015-0003","DOIUrl":"https://doi.org/10.1515/nanofab-2015-0003","url":null,"abstract":"The exchange of information on the molecular level is a vital task in metazoan organisms. Communication between biological cells occurs through chemical or electrical signals in order to initiate, regulate and coordinate diverse physiological functions of an organism [1]. Typical chemical modes of signaling and communication are cell-to-cell interaction in the form of release of small molecules by one, and receptor-controlled uptake by another cell, also transport of molecules through gapjunctions [2], and transport via exosome carriers [3]. During the last decade a new mode of intercellular crosstalk has been discovered, and over time firmly established [4]. Thin tubular structures composed of lipid membrane material and actin polymer, which facilitate the selective transfer of membrane vesicles and organelles, have been identified as cell-bridging channels between cells [5]. The structures, known as membrane nanotubes, or tunneling nanotubes (TNT), have become the focus of a growing research field which generated significant results, as it became apparent that these interconnecting conduits are involved in fundamental mechanism of cell-to-cell communication [6,7]. TNTs have been identified in a variety of cells, including immune cells and neurons. Nanotubes between cells have been shown to form in different ways, for example through membrane protrusions originating from one cell and connecting to another, adjacent cell. The discovery of the membrane nanotubes in vitro in 2004 Mini-Review Article","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"2 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2015-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/nanofab-2015-0003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67056605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Identifying the crossover between growth regimes via in-situ conductance measurements in focused electron beam induced deposition 通过原位电导测量在聚焦电子束诱导沉积中识别生长机制之间的交叉

IF 2.9

Nanofabrication Pub Date : 2014-12-15 DOI: 10.2478/nanofab-2014-0009

M. Winhold, P. Weirich, C. Schwalb, M. Huth

{"title":"Identifying the crossover between growth regimes via in-situ conductance measurements in focused electron beam induced deposition","authors":"M. Winhold, P. Weirich, C. Schwalb, M. Huth","doi":"10.2478/nanofab-2014-0009","DOIUrl":"https://doi.org/10.2478/nanofab-2014-0009","url":null,"abstract":"Abstract Focused electron beam induced deposition presents a promising technique for the fabrication of nanostructures. However, due to the dissociation of mostly organometallic precursor molecules employed for the deposition process, prepared nanostructures contain organic residues leading to rather low conductance of the deposits. Post-growth treatment of the structures by electron irradiation or in reactive atmospheres at elevated temperatures can be applied to purify the samples. Recently, an in-situ conductance optimization process involving evolutionary genetic algorithm techniques has been introduced leading to an increase of conductance by one order of magnitude for tungsten-based deposits using the precursor W(CO)6. This method even allows for the optimization of conductance of nano-structures for which post-growth treatment is not possible or desirable. However, the mechanisms responsible for the observed enhancement have not been studied in depth. In this work, we identified the dwell-time dependent change of conductivity of the samples to be the major contributor to the change of conductance. Specifically, the chemical composition drastically changes with a variation of dwelltime resulting in an increase of the metal content by 15 at% for short dwell-times. The relative change of growth rate amounts to less than 25 % and has a negligible influence on conductance. We anticipate the in-situ genetic algorithm optimization procedure to be of high relevance for new developments regarding binary or ternary systems prepared by focused electron or ion beam induced deposition.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/nanofab-2014-0009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69237665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Nanofabrication techniques of highly organized monolayers sandwiched between two electrodes for molecular electronics 分子电子学中夹在两个电极之间的高组织单层纳米制造技术

IF 2.9

Nanofabrication Pub Date : 2014-12-15 DOI: 10.2478/nanofab-2014-0010

P. Cea, L. Ballesteros, S. Martín

{"title":"Nanofabrication techniques of highly organized monolayers sandwiched between two electrodes for molecular electronics","authors":"P. Cea, L. Ballesteros, S. Martín","doi":"10.2478/nanofab-2014-0010","DOIUrl":"https://doi.org/10.2478/nanofab-2014-0010","url":null,"abstract":"Abstract It is expected that molecular electronics, i.e., the use of molecules as critical functional elements in electronic devices, will lead in the near future to an industrial exploitable novel technology, which will open new routes to high value-added electronic products. However, despite the enormous advances in this field several scientific and technological challenges should be surmounted before molecular electronics can be implemented in the market. Among these challenges are the fabrication of reliable, robust and uniform contacts between molecules and electrodes, the deposition of the second (top) contact electrode, and development of assembly strategies for precise placement of molecular materials within device structures. This review covers advances in nanofabrication techniques used for the assembly of monomolecular films onto conducting or semiconducting substrates as well as recent methods developed for the deposition of the top contact electrode highlighting the advantages and limitations of the several approaches used in the literature. This contribution also aims to define areas of outstanding challenges in the nanofabrication of monomolecular layers sandwiched between two electrodes and opportunities for future research and applications.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/nanofab-2014-0010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69237676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Magnetic properties of cobalt microwires measured by piezoresistive cantilever magnetometry 用压阻式悬臂磁强计测量钴微细线的磁性能

IF 2.9

Nanofabrication Pub Date : 2014-09-19 DOI: 10.2478/nanofab-2014-0008

G. Tosolini, J. Michalik, R. Córdoba, J. D. de Teresa, F. Pérez-Murano, J. Bausells

引用次数: 5

Practical precursor aspects for electron beam induced deposition 电子束诱导沉积的实用前驱体方面

IF 2.9

Nanofabrication Pub Date : 2014-08-07 DOI: 10.2478/nanofab-2014-0007

J. Mulders

{"title":"Practical precursor aspects for electron beam induced deposition","authors":"J. Mulders","doi":"10.2478/nanofab-2014-0007","DOIUrl":"https://doi.org/10.2478/nanofab-2014-0007","url":null,"abstract":"Abstract The purity of a structure made with electron beam induced deposition (EBID) is a the major concern when creating micro and nano-scale functionalities, for example for rapid prototyping. Substantial research focuses on the improvements of the purity using chemical vapor deposition (CVD) based precursors. However, from a practical point of view, many other aspects of a precursor are very relevant in the design of a process and the actual use of a tool for EBID. To a large extent, these precursorrelated characteristics will determine whether or not a precursor can successfully be applied. Some of these characteristics include: vapor pressure range, transition behavior, chemical stability, pyrolitic thresholds, release of corrosive ligands during deposition, toxicity, commercial availability, compatibility with the instrument and operator safety. These characteristic are discussed in more detail here in order to understand what an ideal EBID precursor may be. Although some parameters such as toxicity or flammability seem less important, in practice they can be a road block for application unless the main instrument, such as a regular scanning electron microscope (SEM), is adapted accordingly.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2014-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/nanofab-2014-0007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69237614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Focused Ion Beam Processing of Superconducting Junctions and SQUID Based Devices 聚焦离子束处理超导结和基于SQUID的器件

IF 2.9

Nanofabrication Pub Date : 2014-07-07 DOI: 10.2478/nanofab-2014-0005

D. Cox, J. Gallop, L. Hao

{"title":"Focused Ion Beam Processing of Superconducting Junctions and SQUID Based Devices","authors":"D. Cox, J. Gallop, L. Hao","doi":"10.2478/nanofab-2014-0005","DOIUrl":"https://doi.org/10.2478/nanofab-2014-0005","url":null,"abstract":"Abstract Focused ion beam (FIB) has found a steady and growing use as a tool for fabrication, particularly in the length-scale of micrometres down to nanometres. Traditionally more commonly used for materials characterisation, FIB is continually finding new research areas in a growing number of laboratories. For example, over the last ten years the number of FIB instruments in the U.K. alone has gone from single figures, largely supplied by a single manufacturer, to many tens of instruments supplied by several competing manufacturers. Although the smaller of the two research areas, FIB fabrication has found itself to be incredibly powerful in the modification and fabrication of devices for all kinds of experimentation. Here we report our use of FIB in the production of Superconducting QUantum Interference Devices (SQUIDs) and other closely related devices for metrological applications. This is an area ideally suited to FIB fabrication as the required precision is very high, the number of required devices is relatively low, but the flexibility of using FIB means that a large range of smallbatch, and often unique, devices can be constructed quickly and with very short lead times.","PeriodicalId":51992,"journal":{"name":"Nanofabrication","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2014-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2478/nanofab-2014-0005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69237563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Mechanical magnetometry of Cobalt nanospheres deposited by focused electron beam at the tip of ultra-soft cantilevers 超软悬臂顶端聚焦电子束沉积钴纳米球的机械磁强计

IF 2.9

Nanofabrication Pub Date : 2014-04-02 DOI: 10.2478/nanofab-2014-0006

Hugo Lavenant, V. Naletov, O. Klein, G. de Loubens, L. Casado, J. D. de Teresa

引用次数: 25

FEBID fabrication and magnetic characterization of individual nano-scale and micro-scale Co structures 纳米级和微米级Co结构的FEBID制备和磁性表征

IF 2.9

Nanofabrication Pub Date : 2014-01-01 DOI: 10.2478/nanofab-2014-0003

O. Idigoras, E. Nikulina, J. Porro, P. Vavassori, A. Chuvilin, A. Berger

引用次数: 7