Fundamental aspects of electropolishing

Landolt, D.

doi:10.1016/0013-4686(87)87001-9

Cited by 387 publications

(268 citation statements)

References 65 publications

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“…2B). We believe that electropolishing was especially effective, because current density (i.e., etching rate) is largest at sites of high curvature, which inherently targets sites of surface roughness for removal [26].…”

Section: Fabrication Of Stainless Steel Microneedlesmentioning

confidence: 99%

Coated microneedles for transdermal delivery

Gill

Prausnitz

2007

Journal of Controlled Release

596

447

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Coated microneedles have been shown to deliver proteins and DNA into the skin in a minimally invasive manner. However, detailed studies examining coating methods and their breadth of applicability are lacking. This study's goal was to develop a simple, versatile and controlled microneedle coating process to make uniform coatings on microneedles and establish the breadth of molecules and particles that can be coated onto microneedles. First, microneedles were fabricated from stainless steel sheets as single microneedles or arrays of microneedles. Next, a novel micronscale dip-coating process and a GRAS coating formulation were designed to reliably produce uniform coatings on both individual and arrays of microneedles. This process was used to coat compounds including calcein, vitamin B, bovine serum albumin and plasmid DNA. Modified vaccinia virus and microparticles of 1 to 20 μm diameter were also coated. Coatings could be localized just to the needle shafts and formulated to dissolve within 20 s in porcine cadaver skin. Histological examination validated that microneedle coatings were delivered into the skin and did not wipe off during insertion. In conclusion, this study presents a simple, versatile, and controllable method to coat microneedles with proteins, DNA, viruses and microparticles for rapid delivery into the skin.

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Section: Fabrication Of Stainless Steel Microneedlesmentioning

confidence: 99%

Coated microneedles for transdermal delivery

Gill

Prausnitz

2007

Journal of Controlled Release

596

447

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“…Electropolishing pieces also decreases wear and increases lubricity in engines overcoming a major cause of failure. Since the first systematic study of electropolishing in 1930 57,58 very little has changed in the commercial electropolishing process. An electrolyte based on concentrated phosphoric acid and sulphuric acid mixtures is still employed despite the difficulty of use and very poor current efficiency.…”

Section: Electropolishing Of Stainless Steelmentioning

confidence: 99%

Electrofinishing of metals using eutectic based ionic liquids

Abbott¹,

Ryder²,

König³

2008

Transactions of the IMF

162

114

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Ionic liquids are molten salts that have low melting points. This review concentrates upon eutectic mixtures of quaternary ammonium salts and metal salts (usually halides). These so-called eutectic based ionic liquids can be used for the electrodeposition and dissolution of a wide range of metals and alloys. The review highlights the technological challenges involved in the application of ionic liquids to metal finishing.

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“…The simplest model for alloy electrodeposition assumes that the two depositing species A and B do not interact during the co-reduction process [49]; if so the total deposition current would be jtot = jA + jB or, in the case that hydrogen reduction (HER) may occur in parallel in the potential range of interest, the equation above becomes:…”

Section: Overview and Taxonomy Of Alloy Deposition Processesmentioning

confidence: 99%

“…Consider, for example, Figure 2: Under the approximation of current superposition, knowing the partial currents it is possible to determine the total current (a) (in this case jHER is neglected) and, therefore, the composition as a function of potential (b). A rich variety of distinct behaviors can actually be seen in practice by varying the three parameters mentioned above and the metal ions concentration; some of those are discussed in detail in Reference [49]. Landolt in particular discusses the fact that the landmark classification of alloy plating systems developed by Brenner [50], including normal, anomalous and induced codeposition, can in part be accounted for by the various features of the partial currents; we add however that some important effects are not.…”

Section: Overview and Taxonomy Of Alloy Deposition Processesmentioning

confidence: 99%

Electrodeposition of Alloys and Compounds in the Era of Microelectronics and Energy Conversion Technology

Zangari

2015

Coatings

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Electrochemical deposition methods are increasingly being applied to advanced technology applications, such as microelectronics and, most recently, to energy conversion. Due to the ever growing need for device miniaturization and enhanced performance, vastly improved control of the growth process is required, which in turn necessitates a better understanding of the fundamental phenomena involved. This overview describes the current status of and latest advances in electrodeposition science and technology. Electrochemical growth phenomena are discussed at the macroscopic and atomistic scale, while particular attention is devoted to alloy and compound formation, as well as surface-limited processes. Throughout, the contribution of Professor Foresti and her group to the understanding of electrochemical interfaces and electrodeposition, is highlighted.

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Fundamental aspects of electropolishing

Cited by 387 publications

References 65 publications

Coated microneedles for transdermal delivery

Coated microneedles for transdermal delivery

Electrofinishing of metals using eutectic based ionic liquids

Electrodeposition of Alloys and Compounds in the Era of Microelectronics and Energy Conversion Technology

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