Wettability of HF-CVD diamond films

Pinzari, F.; Ascarelli, P.; Cappelli, E.; Mattei, Giorgio; Giorgi, R.

doi:10.1016/s0925-9635(00)00609-9

Cited by 52 publications

(22 citation statements)

References 13 publications

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“…A micro-syringe (Hamilton Company, Reno, NV, USA) was used to weep the liquids (deionized water, ethylene glycol, and di-iodomethane) on the surfaces of the Ti alloys. The surface tension components for all used liquids are presented in Table 2 [30]. Each sample was subjected to three measurements.…”

Section: Wettability Of the Alloymentioning

confidence: 99%

Mechanical, In Vitro Corrosion Resistance and Biological Compatibility of Cast and Annealed Ti25Nb10Zr Alloy

Cotruț

Parau

Gherghilescu

et al. 2017

Metals

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Compared to other alloys, Ti6Al4V is the most used in medicine. In recent years, concerns regarding the toxicity of Al and V elements found in the composition of Ti6Al4V have drawn the attention of the scientific community, due to the release of Al or V ions after long term exposure to human body fluids which can lead to a negative response of the human host. Based on this, the aim of the paper was to manufacture a Ti25Nb10Zr alloy consisting of biocompatible elements which can replace Ti6Al4V usage in medical applications. In order to prove that this alloy possessed improved properties, the mechanical, wear and corrosion resistance, wettability, and cell viability were performed in comparison with those of the Ti6Al4V alloy. The corrosion behavior of this new alloy in simulated body fluid (SBF) and Hank solutions is superior to that of Ti6Al4V. The cast Ti25Nb10Zr alloy has a good tribological performance in SBF, while annealed Ti25Nb10Zr alloy is better in Hank solution. Cell viability and proliferation assay after five days indicated that Ti25Nb10Zr presented a good viability and proliferation with values of approximately 7% and 10% higher, respectively, than the ones registered for pure Ti. When compared with Ti6Al4V, the obtained results for Ti25Nb10Zr indicated smaller values with 20% in the case of both tests. Overall, it can be concluded that cell proliferation and viability tests indicated that the biocompatibility of the Ti25Nb10Zr alloy is as good as pure Ti and Ti6Al4V alloy.

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Section: Wettability Of the Alloymentioning

confidence: 99%

Mechanical, In Vitro Corrosion Resistance and Biological Compatibility of Cast and Annealed Ti25Nb10Zr Alloy

Cotruț

Parau

Gherghilescu

et al. 2017

Metals

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“…The MS traces in Figure 3a illustrate the representative MELDI spectra for each carrier material in the order of increasing hydrophobicity (cellulose, silica, GMA/DVB particles, and diamond powder [23]. Due to the same surface functionality used for all carrier materials (copper loaded IDA), some peaks in the resulting mass fingerprints exhibited the same m/z values, such as the 4160, 6625, and 15,149 peaks (see asterisks in Figure 3a).…”

Section: Hydrophilic and Hydrophobic Interactionsmentioning

confidence: 99%

Material-enhanced laser desorption/ionization (MELDI)—A new protein profiling tool utilizing specific carrier materials for time of flight mass spectrometric analysis

Feuerstein

Najam‐ul‐Haq

Rainer

et al. 2006

J. Am. Soc. Mass Spectrom.

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Over the past couple of years, proteomics pattern analysis has emerged as an effective method for the early diagnosis of diseases such as ovarian, breast, or prostate cancer, without identification of single biomarkers. MALDI-TOF MS, for example, offers a simple approach for fast and reliable protein profiling, especially by using carrier materials with various physical and chemical properties, in combination with a MALDI matrix. This approach is referred to as materialenhanced laser desorption/ionization (MELDI). In this paper, we report the development and application of derivatized carrier materials [cellulose, silica, poly(glycidyl methacrylate/divinylbenzene) (GMA/DVB) particles, and diamond powder] for fast and direct MALDI-TOF MS protein profiling. The applicability of MELDI for rapid protein profiling was evaluated with human serum samples. These carriers, having various hydrophobicities, resulted in characteristic mass fingerprints, even if all materials were derivatized with iminodiacetic acid (IDA) to yield an immobilized metal affinity chromatography (IMAC) functionality. Our study demonstrates that analyzing complex biological samples, such as human serum, by employing different MELDI carrier materials yielded type-and size-dependent performance variation. T he quest to diagnose and identify diseases at early stages depends mainly on the accurate determination of the marker entities in the biological fluids. These marker entities are normally very low concentrated [1], and highly sensitive methods are required to bind them effectively from the biosamples and to measure them with matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) [2]. MALDI mass spectrometry, in recent times, has proven to be an authentic technique to analyze peptides and proteins [3,4]. These biomolecules out of the complex biofluids like serum are difficult to ionize and thus, bring into time of flight (TOF) because of the complexity of the sample and the suppressing nonvolatile salts [5]. The aforementioned problems are tackled by another technique introduced years ago, namely, surface-enhanced laser desorption/ionization time of flight mass spectrometry (SELDI-TOF MS), for the detection of several peptides and proteins from complex biological specimens [6 -8]. This affinity-based method utilizes selective adsorption of proteins on various chromatographic surfaces to reduce sample complexity [9,10]. Spectra generated by SELDI-TOF MS usually show limited peak and binding capacity due to the smaller surface area of the plane protein chip [11]. Limitations of SELDI are also associated with the lower mass resolution of the applied MS instrument that

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“…The test liquids were deionized water and 1-Bromonaphthalene, in which the nonpolar components were 21.8 mJ m À2 and 44.6 mJ m À2 , respectively, and the polar components were 51 mJ m À2 and 0 mJ m À2 , respectively [44,45] . Also each measurement was performed in triplicate.…”

Section: Surface Free Energy Measurementmentioning

confidence: 99%

Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water

et al. 2015

Journal of Materials Science & Technology

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Date of Acceptance: 11/11/2014Tap water is one of the most commonly used water resources in our daily life. However, the increasing water contamination and the health risk caused by pathogenic bacteria, such as Staphylococcus aureus and Escherichia coli have attracted more attention. The mutualism of different pathogenic bacteria may diminish antibacterial effect of antibacterial agents. It was found that materials used for making pipe and tap played one of the most important roles in promoting bacterial growth. This paper is to report the performance of an innovative type 304 Cu-bearing stainless steel (304CuSS) against microbes in tap water. The investigation methodologies involved were means of heterotrophic plate count, contact angle measurements, scanning electron microscopy for observing the cell and subtract surface morphology, atomic absorption spectrometry for copper ions release study, and confocal laser scanning microscopy used for examining live/dead bacteria on normal 304 stainless steel and 304CuSS. It was found that the surface free energy varied after being immersed in tap water with polar component and Cu ions release. The results showed 304CuSS could effectively kill most of the planktonic bacteria (max 95.9% antibacterial rate), and consequently inhibit bacterial biofilms formation on the surface, contributing to the reduction of pathogenic risk to the surrounding environments

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Wettability of HF-CVD diamond films

Cited by 52 publications

References 13 publications

Mechanical, In Vitro Corrosion Resistance and Biological Compatibility of Cast and Annealed Ti25Nb10Zr Alloy

Mechanical, In Vitro Corrosion Resistance and Biological Compatibility of Cast and Annealed Ti25Nb10Zr Alloy

Material-enhanced laser desorption/ionization (MELDI)—A new protein profiling tool utilizing specific carrier materials for time of flight mass spectrometric analysis

Antibacterial Performance of a Cu-bearing Stainless Steel against Microorganisms in Tap Water

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