5 fold change threshold) The detachment

5 fold change threshold). The detachment phenotype of nine mutant strains was characterized using visual inspection (recorded with a digital camera), cryosections of 3 h biofilms, and SEM of the surface after draining the tubing. With slight variations, all the mutant strains LY3023414 in vitro exhibited detachment phenotypes that were quite similar. Figure 10 presents a panel of results for six of the strains tested. In the top row are mutants exhibiting detachment phenotypes that we consider essentially identical. The detachment phenotypes of the aqy1/aqy1 and BMN 673 mw ywp1/ywp1mutants and the orf19.822 double knockout were very similar to those shown in the top row.

The macroscopic appearance of the psa2/psa2 mutant was similar to the reference strain but the biofilm was too fragile to withstand the application of the OCT polymer to the surface so cryosections could not be obtained. In the bottom row are detachment phenotypes that exhibited slight variations. Cryosections of the pga13/pga13 mutant did not produce hyphae that were clearly aligned at both edges of the

biofilm. We tentatively attribute this to disruption of the structure during application of the OCT polymer since this biofilm had the appearance LCZ696 clinical trial of being more fragile than that of the reference strain. In contrast, the mkc1/mkc1 mutant produced a biofilm in which alignment of hyphae appeared to be more pronounced than in the reference strain. (The detachment phenotype of the CAI4 reference strain was the same as the BWP1 reference strain). The detachment phenotype of ACT1-ALS3

biofilm was the only one that differed appreciably from the reference strain in terms of macroscopic appearance. Compared to the reference strain this mutant exhibited fewer regions of detachment that were relatively more displaced from the surface. Figure 10 Detachment phenotypes of selected mutants. All data presented are for 3 h biofilms. The top row of panels in each set are digital camera images (top view, first row; side view, second row). The third row in each set are cryosections and the forth row are SEM images of the surface after draining the tubing. SEM images Sunitinib show the most densely colonized regions of the surface that could be found. The biofilm formed from the pga13/pga13 mutant was relatively fragile and this may have contributed to the altered structure of the cryosections. In terms of gross structure the most pronounced differences were seen in the ACT1-ALS3 construct which exhibited fewer regions of detachment that were relatively more displaced from the surface. Discussion Although circumstantial evidence strongly implicates that detachment from C.

J Exp Clin

J Exp Clin Cancer Res 2012, 31:32.PubMedCrossRef 27. Filella X, Foj L, Milà M, Augé JM,

Molina R, Jiménez W: PCA3 in the detection and management of early prostate cancer. Tumor Biol 2013,34(3):1337–1347.CrossRef 28. Delgado PO, Alves BC, Gehrke Fde S, Kuniyoshi RK, Wroclavski ML, Del Giglio A, Fonseca FL: Characterization of cell-free circulating DNA in plasma in patients with prostate cancer. Tumor Biol 2013,34(2):983–986.CrossRef 29. Zhang H, Qi C, Li L, Luo F, Xu Y: Clinical significance of NUCB2 EVP4593 price mRNA expression in prostate cancer. J Exp Clin Cancer Res 2013,32(1):56.PubMedCrossRef 30. Zhang H, Qi C, Wang A, Li L, Xu Y: High expression of nucleobindin 2 mRNA: an independent prognostic factor for overall survival of patients with prostate cancer. Tumor Biol 2013. DOI: 10.1007/s13277–013–1268-z 31. Diamandis EP: Prostate cancer screening with prostate-specific antigen testing: more answers or

more confusion? Clin Chem 2010,56(3):345–351.PubMedCrossRef 32. Shiraishi PRI-724 T, Terada N, Zeng Y, Suyama T, Luo J, Trock B, Kulkarni P, Getzenberg RH: Cancer/testis antigens as potential predictors of biochemical recurrence of prostate cancer following radical prostatectomy. J Transl Med 2011, 9:153.PubMedCrossRef 33. Shariat SF, Karakiewicz PI, Suardi N, Kattan MW: Comparison of nomograms with other methods for predicting outcomes in prostate cancer: a critical analysis of the literature. Clin Cancer Res 2008,14(14):4400–4407.PubMedCrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions ZH, QC and XY conceived

and designed the study, performed the experiments and wrote the paper. ZH, YB, WY and XY contributed to the writing and to the critical reading of the paper. ZH, QC, LL and WA performed PtdIns(3,4)P2 patient collection and clinical data interpretation. ZH, WA, and LL participated performed the statistical analysis. All authors read and approved the final manuscript.”
“Background Gastric cancer is a significant health problem, accounting for approximately one million new cases and more than 700,000 cancer-related deaths annually in the world [1–3]. Although the incidence of gastric cancer has substantially decreased in most parts of the world for the past few decades, partially due to consumption of more fresh fruits and reduction of Helicobacter pylori infection in the selleck population [1–3], to date, a large number of patients with gastric cancer are still diagnosed at advanced stages, which makes curative surgery difficult. Approximately 80% of such patients will die within a short period of time due to regional recurrence or distant metastasis [4, 5]. Tumor metastasis involves a complex series of steps in which tumor cells leave their original site and spread to distant organs or tissues. Metastasis is the major cause of cancer-related death, and the underlying molecular mechanisms are not fully understood.

Appl Phys Lett 2004, 85:5185 CrossRef Competing interests The aut

Appl Phys Lett 2004, 85:5185.CrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions SRJ designed the project of experiments;

performed the XRD, AFM, and nanoindentation analyses; and drafted the manuscript. YCT dealt with the experimental data. HWC and PHC carried out the growth FG-4592 order of BFO thin films, and JYJ participated in the paper discussion. All authors read and approved the final manuscript.”
“Background Most research efforts in macroelectronics have opened the door for the manufacture of lightweight, flexible, cost-effective electronic devices that are beyond the conventional silicon-based devices, including flexible displays [1], flexible and conformal antenna arrays [2], electronic solar cell arrays [3], radio-frequency identification tags [4], flexible batteries [5], electronic circuits fabricated in clothing [6], and biomedical devices [7]. Usually, most of them require electrical contacts. Up to now, various materials such as conjugated polymers, graphene, carbon nanotubes, and metals have been used for the preparation of electrodes and conductive patterns using solution processing methods [8–11]. Specifically, metal nanoparticle inks have attracted more Elafibranor ic50 and more attention due to their high conductivity and thermal stability after having been sintered [12–14]. However, metallic nanoparticle inks often require

high annealing temperatures (>150°C) to decompose stabilizing agents and other polymeric additives that inhibit electrical conductivity, with the high annealing temperature limiting the choice of substrate. Besides, they Atorvastatin still cannot completely avoid the

condensation and agglomeration of nanoparticles, especially after long-term storage. The agglomerated particles may damage the equipment and influence the printing quality. During preparation, a high-speed centrifuge or vacuum dryer must be used to take nanometal particles out, so these inks cannot be produced on a large scale. All of these will cause a higher production cost [15–18]. There is no surprise to the fact that organic silver conductive ink (OSC ink) has received increasing attention as a potentially much lower cost alternative [19–21]. This kind of ink mainly consists of a silver carrier, weak reduction agent, solvent, and additives, and a continuous conductive silver track can be fabricated during the sintering process. This strategy can compensate for the lack of conductive metal nanoink and thus MK-4827 becomes the development direction of conductive ink for macroelectronics [22–25]. In our previous research, the relationship between different kinds of amines and ink properties was investigated systematically. The addition of different amines not only increased the solid content of the conductive ink but also decreased the sintering temperature by complexation [26–28].

With various connectivity schemes

(e g , 0–3 particulate

With various connectivity schemes

(e.g., 0–3 particulate type, 2–2 laminate type, and 1–3 fiber/rod type), these heterostructures have offered the opportunity to tune ferroelectric and magnetic properties independently, and the ME coefficient is 3 orders of magnitude higher than their single-phase counterparts [7]. The magnetoelectric effect in most multiferroic composites is known as strain-mediated, in which the ME coupling is a concerted result of the piezoelectric effect from the piezoelectric phase and magnetostrictive effect from the magnetic phase. An electric field induces a distortion of the piezoelectric phase, which in turn distorts the magnetostrictive phase, generating a magnetic field and vice versa. Substantial ME coupling requires the ferroelectric phase to be in possession of a high piezoelectric coefficient, Selleckchem RAD001 while the magnetic phase possess both high magnetostriction and resistivity, with an intimate mechanical contact between the two [8]. Ceramic composites have a combination of ferroelectric and magnetic oxides; polymer composites have the magnetic oxides embedded in ferroelectric polymer

matrix. The former is limited by high dielectric loss resulting from the interface; the latter offers mechanical STA-9090 order flexibility with facile processing. For instance, with high strength selleck kinase inhibitor and good stability [9], polyvinylidene difluoride (PVDF) and its copolymers such as poly(vinylidenefluoride-co-trifluoroethylene) Vasopressin Receptor (P(VDF-TrFE)) [10] and poly(vinylidene fluoride-hexafluoropropylene) (P(VDF-HFP)) [11–13] are well known for their ferroelectricity and piezoelectricity, which make them ideal candidates for multiferroic film fabrication and ME effect exploration. Transition metal ferrites such as CoFe2O4, possessing a large magnetostriction

coefficient (λ ≈ 10−4) [14] and high Curie temperature (T c > 600 K) [15], serve as excellent candidates for the magnetic phase. Although the mechanism of the magnetoelectric coupling is straightforward, complications arise when quantifying the details of polymer-based nanocomposites. The presence of polymorphism (e.g., α, β, γ, δ phases in PVDF), domain walls, grain boundaries, residual stain/magnetization, surface charge, and voids can significantly hinder the ME effect. Andrew and Clarke [16] found that the inclusion of well-dispersed Ni0.5Zn0.5Fe2O4 nanoparticles in a PVDF matrix can enhance the ferroelectric phase content. Liu et al. [17]. reported epitaxial BaTiO3-CoFe2O4 nanocomposite thin films (thickness, 100 nm) with phase transition mediated by tensile strain. Recently, a magnetoelectric coupling coefficient of 12 V/cm · Oe was obtained for P(VDF-HFP)/Metglas laminates [18]. Martins et al. [19] fabricated ferrites/PVDF nanocomposites films with thickness of 40 to 50 μm by solvent casting and melt processing. Guo and co-workers prepared particulate Ni0.5Zn0.

To successfully proceed with the development and improvement of s

To successfully proceed with the development and improvement of such systems, a comprehensive understanding is required and therefore a detailed characterization should be addressed. This is not an easy task since the downscaling tendency will require a characterization down to nanoscale where big challenges like confinement can occur. As a result, effects confined down

to nanoscale can play LGX818 concentration a major and defining role in the overall performance of future devices. Therefore, not only the access of nanoscale is strongly required, but also the corresponding understanding is a key factor for reaching a success. Addressing these two aspects, the scanning probe microscopy techniques exhibit strong versatility. In particular, for interconnect systems, the electric characterization which gives an insight into the CNT/bottom

line contact quality is of great importance. Multi-walled CNT (MWCNT)-based via interconnect systems are mainly characterized in the literature using classical electrical measurements where the entire via is contacted using a top metal electrode. It is obvious where the problem lies in this configuration. The outcome of the study tells nothing about fluctuations inside the via itself. The interpretation of such results is rather blind relative to a possible inhomogeneous internal performance. Via a (nano)characterization of CCI-779 mw such systems by conductive atomic force microscopy (c-AFM), this issue is not overlooked. Moreover, c-AFM gives the opportunity to address single CNTs earning undeniable superiority over the classical electrical measurements. While general information can be collected over an extended CNT array using the so-called current mapping, individual CNTs can be addressed in detail using current–voltage (I V) studies. The facility is crucial as the downscaling tendency boosts the importance of the CNT/metal contacts in the ultimate nanoscaled devices with Methocarbamol a strong impact over

the final performance. Therefore, c-AFM was applied in this work to address the electric characterization of vertically aligned MWCNT arrays grown on a copper-based metal line. Methods Vertically aligned MWCNT arrays were grown by chemical vapour deposition on a copper-based conductive metal line as comprehensively described in [8, 15]. The copper-based metal line is a layer stack where Ta was used as the top layer. Moreover, TaN was used as the barrier layer to inhibit copper diffusion into the Ni catalyst layer. It was shown that the lack of such a diffusion barrier would strongly affect the quality of the CNT vertical growth [8]. All data shown within this work were recorded under ambient conditions using a 5500 AFM from Agilent Technologies (Santa Clara, CA, USA). N-type (phosphorus-doped) silicon-etched AFM probes from MikroMasch (Wetzlar, Germany) with a nominal uncoated tip radius of 10 nm were used for tapping-mode Selleck AZD6738 imaging.

Science 1999, 286:531–7 PubMedCrossRef 2 Perou CM, Sørlie T, Eis

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D, van Damme H, Raap AK, Chan AB, van Beuningen R: Quantitative assessment of a novel flow-through porous microarray for the rapid analysis of gene expression profiles. Nucleic Acids Res 2004, 32:e123.PubMedCrossRef 4. Hokaiwado N, Asamoto M, Tsujimura K, Hirota T, Ichihara T, Satoh T, Shirai T: Rapid analysis of gene expression changes caused by liver carcinogens and chemopreventive agents www.selleckchem.com/products/azd2014.html using a newly developed three-dimensional microarray system. Cancer Sci 2004, 95:123–30.PubMedCrossRef 5. Jain KK: Role of pharmacoproteomics in the development of personalized medicine. Pharmacogenomics 2004, 5:331–6.PubMedCrossRef 6. Jones S, Zhang X, Parsons DW, Lin JC, Leary RJ, selleck chemical Angenendt P, Mankoo P, Carter H, Kamiyama H, Jimeno A, Hong SM, Fu B, Lin MT, Calhoun ES, Kamiyama M, Walter K, Nikolskaya

Erismodegib solubility dmso T, Nikolsky Y, Hartigan J, Smith DR, Hidalgo M, Leach SD, Klein AP, Jaffee EM, Goggins M, Maitra A, Iacobuzio-Donahue C, Eshleman JR, Kern SE, Hruban RH, Karchin R, Papadopoulos N, Parmigiani G, Vogelstein B, Velculescu VE, Kinzler KW: Core signaling pathways in human pancreatic cancers revealed by global genomic analyses. Science 2008, 321:1801–6.PubMedCrossRef 7. Brandt R, Grützmann R, Bauer A, Jesnowski R, during Ringel J, Löhr M, Pilarsky C, Hoheisel JD: DNA microarray analysis of pancreatic malignancies. Pancreatology 2004, 4:587–97.PubMedCrossRef 8. Kitoh H, Ryozawa S, Harada T, Kondoh S, Furuya

T, Kawauchi S, Oga A, Okita K, Sasaki K: Comparative genomic hybridization analysis for pancreatic cancer specimens obtained by endoscopic ultrasonography-guided fine-needle aspiration. J Gastroenterol 2005, 40:511–7.PubMedCrossRef 9. Crnogorac-Jurcevic T, Efthimiou E, Capelli P, Blaveri E, Baron A, Terris B, Jones M, Tyson K, Bassi C, Scarpa A, Lemoine NR: Gene expression profiles of pancreatic cancer and stromal desmoplasia. Oncogene 2001, 20:7437–46.PubMedCrossRef 10. Van Gelder RN, von Zastrow ME, Yool A, Dement WC, Barchas JD, Eberwine JH: Amplified RNA synthesized from limited quantities of heterogeneous cDNA. Proc Natl Acad Sci USA 1990, 87:1663–7.PubMedCrossRef 11. Maekawa M, Nagaoka T, Taniguchi T, Higashi H, Sugimura H, Sugano K, Yonekawa H, Satoh T, Horii T, Shirai N, Takeshita A, Kanno T: Three-dimensional microarray compared with PCR-single-strand conformation polymorphism analysis/DNA sequencing for mutation analysis of K-ras codons 12 and 13. Clin Chem 2004, 50:1322–7.

New Phytol 2001, 151:743–751 CrossRef 38 Fravel D: Role of antib

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and interactions between a range of soil-borne glasshouse pathogens and antagonistic fungi. New Phytol 1987, 107:127–142.CrossRef 40. Doyle JJ, Doyle JL: Isolation of plant DNA from fresh tissue. Focus 1990, 12:13–15. 41. White TJ, Bruns T, Lee S, Taylor JW: Amplification and direct sequencing of fungal ribosomal RNA genes for phylogenetics. In PCR protocols: a guide to methods and applications. Edited by: Innis MA, Gelfand DH, Sninsky JJ, White TJ. Academic, New York; 1990:315–322. 42. Abarenkov K, Henrik Nilsson VS-4718 clinical trial R, Larsson KH, Alexander IJ, Eberhardt U, Erland S, Høiland K, Kjøller R, Larsson E, Pennanen T, Sen R, Taylor AF, Tedersoo L, Ursing BM, Vrålstad T, Liimatainen K, Peintner U, Kõljalg U: The UNITE database for molecular identification of fungi–recent updates and future perspectives. New Phytol 2010, 186:281–285.PubMedCrossRef 43. Nonomura H, Hayakawa M, et al.: New methods for the selective isolation of soil actinomycets. In Biology of Actinomycetes’88. Edited by: Okami Y. Japan Scientific

Societies Press, Autophagy inhibitor clinical trial Tokyo, Japan; 1988:288–293. 44. Shirling EB, Gottlieb D: Methods for characterization of Streptomycetes species. Int J Syst Bacteriol 1966, 16:313–340.CrossRef 45. Hirsch CF, Christensen DL: Novel method for selective isolation of actinomycetes: Appl Environ Microbiol. 1983,46(4):925–929. 46. Coombs JT, Franco CMM: Isolation and Identification of Actinobacteria from Surface-Sterilized

Wheat Roots. Appl Environ Microbiol 2003, 69:5603–5608.PubMedCrossRef 47. Debaud JC, Gay G: In vitro fruiting under controlled conditions of ectomycorrhizal fungus Hebeloma cylindrosporum associated with Pinus pinaster. New Phytol 1987, 105:429–435.CrossRef 48. Di Battista C, Selosse MA, Bouchard D, Stenström E, Le Tacon F: Variations in symbiotic efficiency, Loperamide phenotypic characters and ploidy level among different isolates of the ectomycorrhizal basidiomycete Laccaria bicolor strain S238. Mycol Res 1996, 100:1315–1324.CrossRef 49. Molina R, Palmer JG: Isolation, maintenance and pure culture manipulation of ectomycorrhizal fungi. In Methods and principles of mycorrhizal research. Edited by: Schenk NC. The American Phytopathological Society, St. Paul, MN, USA; 1982:115–129. 50. Davis BD, Mingioli ES: Mutants of Escherichia coli requiring methionine or vitamin B12. J Bacteriol 1950, 60:17–28.PubMed 51. Murashige T, Skoog F: A revised medium for rapid growth and bioassays with tobacco Temsirolimus tissue cultures. Physiol Plant 1962, 15:467–472.CrossRef 52. Epple P, Apel K, Bohlmann H: Overexpression of an endogenous thionin enhances resistance of Arabidopsis against Fusarium oxysporum. Plant Cell 1997, 9:509–520.PubMed Competing interests The authors declare to have no competing interests.

The cohesive energies of all the considered boron nanowires are n

The cohesive energies of all the considered boron nanowires are negative and have the absolute value larger than 6.70 eV/atom. This indicates that the dispersive B atoms prefer to bind together and form novel nanostructures, which can be seen from literatures about the multi-shaped one-dimensional nanowires [21–27]. Simultaneously, by comparison, the cohesive energies of the considered boron nanowires are a little smaller than those of the bulk α-B and β-B, which are the two most stable of the various B bulks. Therefore, we conclude that all these under-considered click here boron nanowires are chemically stable.

However, due to the relatively higher cohesive energy, some of the considered boron nanowires may be metastable, and experimental researchers need to seek the path of synthesizing these materials. Nevertheless, the typical one-dimensional structural characteristic and the attractive electronic and magnetic properties, Pevonedistat mw as shown below, may stimulate

experimental efforts in searching for a synthesizing path of this material. Figure 1 Optimized configurations of the considered boron nanowires (red circles). (a) α-a [100], (b) α-b [010], (c) α-c [001], (d) β-a [100], (e) β-b [010], and (f) β-c [001]. Herein, for the same configuration, the left and right are respectively corresponding to the side and top views. Table 1 Cohesive energies and total magnetic moments of considered boron nanowires and of bulk α-B and β-B Nanostructure E c (eV/atom) M (μB) α-a [100] −6.88 0.02 α-b [010] −6.94 0.00 α-c [001] −6.84 1.98 β-a [100] −6.75 0.00 β-b [010] selleck screening library −6.74 0.00 β-c [001] −6.76 2.62 α-B −7.42 0.00 β-B −7.39 0.00 To lend further understanding of the nature of the boron nanowires considered above, we studied the electronic structures of all configurations using

the spin-polarized calculations. The calculated total magnetic moments of the six nanowires are listed in the second selleck chemicals column of Table 1. It is obvious that for the three boron nanowires obtained from the unit cell of α-B, the nanowires α-a [100] and α-b [010] have the total magnetic moments of approximately equal to zero, while the nanowire α-c [001] has a distinctly different total magnetic moment of 1.98 μB. Moreover, for the three boron nanowires obtained from the unit cell of β-B, the same trend about the total magnetic moments occurs. The nanowires β-a [100] and α-b [010] both have the total magnetic moments also approximately equal to zero, and the nanowire β-c [001] has the total magnetic moments of 2.62 μB. Additionally, in Table 1, we also presented the calculated total magnetic moments of bulk α-B and β-B. Thus, these results indicate that both of the two kinds of boron bulks have no magnetism, with the total magnetic moments equal to zero. For the two magnetic nanowires, α-c [001] and β-c [001], we also set the initial spin configurations to the antiferromagnetic (AFM) order.

A standardized breakfast, lunch and dinner was given to the subje

A standardized breakfast, lunch and dinner was given to the subjects at 07 h30, 13 h00 and 20 h00 respectively. To maintain the competitive aspect, but play for similar periods, the format of each game was adapted to last 2 h. In practice, the players played 3 sets using the No Ad scoring system to limit variability in the duration of the games. The first 2 sets were played in 6 games with a tiebreak in case of a tie at 6 all. At the end of the first two sets, the format

of the third set was adjusted to obtain an estimated final match time of 2 h. If the duration of the first two sets was less than 1 h 20 min, check details the third set took place in 6 games, like the first 2. If the first 2 sets lasted between 1 h 20 min and 1 h 40 min, the third set was played in 4 games, with a tiebreaker played in the event of a tie at four games all. Finally, if the duration of the first 2 sets was above 1 h 40 min, the third set was replaced by a super tiebreak of 10 points. This protocol resulted in matches very close to 2 h in

duration and with very low variability, while avoiding games played “in time”, which could have led to abnormal playing and have had a negative impact on the player motivation. No significant differences could be detected in the average duration of matches between the PLA and SPD sessions (data HDAC cancer not shown). Isometric handgrip strength Three consecutive measurements for isometric handgrip strength of the dominant hand were made with a calibrated dynamometer (TK200, Takei®, Niigata, Japan). The best performance was recorded for each subject. The apparatus was reset to zero before each measurement. The measurements were conducted under standardized conditions: subject seated, the shoulder adducted and neutrally Wnt signaling rotated, with the forearm and wrist in a neutral position and the elbow at 90° flexion. Phosphoglycerate kinase The subjects were

verbally encouraged to perform three, 3-s maximum voluntary contractions (MVC) separated by at least 3 min of recovery in between. Power (jump height) All vertical jumps were performed using an optical measurement system (Optojump, Microgate®, Bolzano, Italy). A software program recorded jump height based on flight time. In order to ensure the validity of the test, participants were asked to have their knees as fully extended as possible and their ankles completely plantarflexed on both take-off and landing. Participants stood with their feet shoulder width apart and flat on the contact mat. The best jump from three attempts was recorded for both squat jumps (SJ) and countermovement jumps (CMJ). A 1-min recovery was provided between all jump trials. For both jump measurements, participants stood feet flat on the contact mat with hands on hips (no arm swing). For SJ measurements, participants held their knees flexed at 90° for two seconds, and were then told to jump as high as possible, avoiding the use of a stretch-shortening cycle as for CMJ.

With the thickening of V layers, V gradually transforms from the

With the thickening of V layers, V gradually transforms from the metastable fcc structure to a stable bcc structure due to the difference of strain-free bulk energy [22]. The amorphization can be the transition state between the fcc structure and bcc structure. From the XRD results, V layers transform from the transient amorphous state into a stable bcc structure when the V layer thickness increases to 3.0 nm. Therefore, when the V layer thickness is in the range

of 2.0 ~ 3.0 nm, V layers present the amorphous state between fcc structure and bcc structure. We also observed the amorphization of yttrium (Y) layers between fcc structure and hcp structure with the increase of Y layer thickness in FeNi/Y nanomultilayered films, which will be discussed in another paper. It must find more be pointed out that amorphous-featured diffraction corona is not observed in the SAED pattern, which can be attributed to the facts that the diffraction information is only gathered from the circular region with the diameter of about 20 nm and in such small area, the low amount V with the thickness of 1.5 nm cannot produce enough strong diffraction signal. The microstructural evolution of V layers in FeNi/V nanomultilayered films can be explained by a thermodynamic model. The total energy of the V layer, ��-Nicotinamide E T, is composed

of strain-free bulk energy, strain energy, and interfacial energy, which can be written as (1) where E bulk and E str, respectively, are the strain-free bulk energy and strain energy per unit of V layer, in which E str takes a larger value with a small t V and decreases with the increase of t V, and E int is the interfacial energy between FeNi and V layers. During the initial increase of t V (less than 1.5 nm), since t V is small, E int is the main component of E T. Formation of a coherent interface between FeNi and V layers can lower E int. Therefore, V layers can transform

into a fcc structure Avelestat (AZD9668) and grow epitaxially with FeNi layers. When t V rises to 2.0 nm, the strain-free bulk energy and strain energy increase, which occupy a larger proportion in E T than in E int. E T cannot be reduced by forming the coherent interface. Therefore, the V layers cannot maintain the fcc structure and epitaxial growth with FeNi layers. In addition, since E str takes a larger value when t V is JQ1 molecular weight comparatively small, E T is dominated by the strain energy relative to the strain-free bulk energy. In this situation, formation of a bcc structure of V layers within the FeNi/V nanomultilayered film can lead to the increase of the strain energy. Consequently, amorphization, as a transition state between fcc and bcc structures, has been formed to lower the strain energy and thus E T, as additionally shown in Figure 4. Figure 4 Amorphization of V layers within the FeNi/V nanomultilayered film with a V layer thickness of 2.0 nm. (a) Low magnification. (b) High magnification.