Log in

Relevant bibliographies by topics / Films nanoporeux / Journal articles

To see the other types of publications on this topic, follow the link: Films nanoporeux.

Journal articles on the topic 'Films nanoporeux'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Films nanoporeux.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Abelow, Alexis E., Ryan J. White, Kevin W. Plaxco, and Ilya Zharov. "Nanoporous silica colloidal films with molecular transport gated by aptamers responsive to small molecules." Collection of Czechoslovak Chemical Communications 76, no. 6 (2011): 683–94. http://dx.doi.org/10.1135/cccc2011022.

Full text

Abstract:

We report the preparation of colloidal nanoporous silica films whose function mimics that of protein channels in gating the transport of small molecules across a cell membrane. Specifically, we report a means of controlling the molecular flux through colloidal nanopores that employ aptamer oligonucleotides binding to a specific organic small molecule (cocaine). These biomacromolecules have been introduced onto the nanopore surface by attaching pre-made oligonucleotides to the activated nanopore surface. The aptamers change their conformation in response to the binding events, and thus alter th

APA, Harvard, Vancouver, ISO, and other styles

2

Srisuwan, Y., N. Kotsaeng, Y. Baimark, N. Narkkong, and W. Simchuer. "Study on Morphology and Thermal Stability of Nanoporous Silk Fibroin Films." Advanced Materials Research 55-57 (August 2008): 721–24. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.721.

Full text

Abstract:

Nanoporous silk fibroin (SF) films were prepared as SF film loaded with methoxy poly(ethylene glycol)-b-poly(D,L-lactide) (MPEG-b-PDLL) nanoparticles by film casting of MPEG-b-PDLL nanoparticle suspension-SF solution. Nanoporous structures of the SF films were formed due to self-condensation and nanophase separation of nanoparticles from SF film matrix during drying process. The films with SF/MPEG-b-PDLL ratios of 20/1, 20/2 and 20/3 (w/w) were prepared and investigated. The MPEG-b-PDLL nanoparticles can be observed on film surface and cross-section with 100-300 nm in size. The size of interco

APA, Harvard, Vancouver, ISO, and other styles

3

Her, Hyun Jung, Jung Min Kim, Yun Soo Lim, et al. "Nanoporous Titania by Embossing with PMMA Nanopoles Made from Nanoporous Alumina Template." Materials Science Forum 544-545 (May 2007): 1017–20. http://dx.doi.org/10.4028/www.scientific.net/msf.544-545.1017.

Full text

Abstract:

We produced highly uniform nanoporous thin films of the dense array of titania (TiO2) pores of 70~80 nm in diameter with nanoimprinting method. Titania in HCl and 2-propanol solution was coated on an indium tin oxide (ITO) surface and embossed with an array of PMMA nanopoles which was produced using a nanoporous alumina (Al2O3) template. Two-step anodization was introduced to produce highly uniform and dense nanopores on the aluminum surface. The polymethyl methacrylate (PMMA) was poured onto and infiltrated into the nanoporous alumina surface which was heated at 150 oC. The alumina nanopores

APA, Harvard, Vancouver, ISO, and other styles

4

Leenheer, Andrew J., Alexander Miedaner, Calvin J. Curtis, Maikel F. A. M. van Hest, and David S. Ginley. "Fabrication of nanoporous titania on glass and transparent conducting oxide substrates by anodization of titanium films." Journal of Materials Research 22, no. 3 (2007): 681–87. http://dx.doi.org/10.1557/jmr.2007.0078.

Full text

Abstract:

Nanoporous titania (TiO2) or titania nanotubes could provide a continuous nanostructured electron-conducting anode for organic photovoltaics. In this work, nanoporous titania was formed by anodizing thin films of titanium on both glass and transparent conducting oxide (TCO) substrates. Titanium thin films (500–700 nm) were deposited by radio frequency (RF) magnetron sputtering. Films were anodized in acidic electrolytes containing small amounts of hydrofluoric acid (HF) at constant voltages ranging from 7 to 15 V. Scanning electron microscope (SEM) analysis revealed a nanoporous structure. Nan

APA, Harvard, Vancouver, ISO, and other styles

5

Chojenka, Juliusz, Arkadiusz Zarzycki, Marcin Perzanowski, et al. "Tuning of the Titanium Oxide Surface to Control Magnetic Properties of Thin Iron Films." Materials 16, no. 1 (2022): 289. http://dx.doi.org/10.3390/ma16010289.

Full text

Abstract:

We describe the magnetic properties of thin iron films deposited on the nanoporous titanium oxide templates and analyze their dependance on nanopore radius. We then compare the results to a continuous iron film of the same thickness. Additionally, we investigate the evolution of the magnetic properties of these films after annealing. We demonstrate that the M(H) loops consist of two magnetic phases originating from the iron layer and iron oxides formed at the titanium oxide/iron interface. We perform deconvolution of hysteresis loops to extract information for each magnetic phase. Finally, we

APA, Harvard, Vancouver, ISO, and other styles

6

Shahidah Arina Shamsuddin, Adilah Ayoib, M. N. A. Uda, et al. "Comparative analysis of the efficacy of bulk and membrane nanoporous materials in biological sensing." International Journal of Nanoelectronics and Materials (IJNeaM) 18, no. 2 (2025): 305–13. https://doi.org/10.58915/ijneam.v18i2.2188.

Full text

Abstract:

Nanoporous materials possess significant potential in biological sensing applications due to their unique pore structures and high surface-area-to-volume ratios. Two common types of nanoporous materials are bulk and membrane-based. The differences in the structural and dimensional properties of nanopores are expected to impact the efficiency of biomolecule interactions during immobilization and hybridization, thereby influencing the overall performance of biological sensors. This study aims to investigate which type of nanoporous material offers enhanced sensitivity in detecting DNA targets. I

APA, Harvard, Vancouver, ISO, and other styles

7

Benetti, Giulio, Francesco Banfi, Emanuele Cavaliere, and Luca Gavioli. "Mechanical Properties of Nanoporous Metallic Ultrathin Films: A Paradigmatic Case." Nanomaterials 11, no. 11 (2021): 3116. http://dx.doi.org/10.3390/nano11113116.

Full text

Abstract:

Nanoporous ultrathin films, constituted by a slab less than 100 nm thick and a certain void volume fraction provided by nanopores, are emerging as a new class of systems with a wide range of possible applications, including electrochemistry, energy storage, gas sensing and supercapacitors. The film porosity and morphology strongly affect nanoporous films mechanical properties, the knowledge of which is fundamental for designing films for specific applications. To unveil the relationships among the morphology, structure and mechanical response, a comprehensive and non-destructive investigation

APA, Harvard, Vancouver, ISO, and other styles

8

Yu, Yang-Yen, and Chang-Chung Yang. "Preparation of Nanoporous Poly(Methyl Silsesquioxanes) Films Using PS-b-P4VP as Template." Journal of Nanoscience and Nanotechnology 8, no. 3 (2008): 1537–44. http://dx.doi.org/10.1166/jnn.2008.073.

Full text

Abstract:

Nanoporous poly(methyl silsesquioxane) (PMSSQ) film was prepared through the templating of an amphiphilic block copolymer, poly(styrene-4-vinyl pyridine) (PS-b-P4VP). The experimental and theoretical studies suggest that the intermolecular hydrogen bonding is existed between the PMSSQ precursor and PS-b-P4VP. The miscible hybrid and the narrow thermal decomposition of the PS-b-P4VP lead to nanopores in the prepared films from the results of TGA, AFM, and TEM. The effects of the loading ratio on the morphology and properties of the prepared nanoporous PMSSQ films were investigated. The TEM and

APA, Harvard, Vancouver, ISO, and other styles

9

Yu, Yang Yen, Wen Chen Chien, and Shih Ting Chen. "Preparation of Nanoporous Mondispersed Silica Nanoparticles Films Using Poly(styrene)- Block-Poly( 2-Vinyl Pyridine) as Template." Advanced Materials Research 47-50 (June 2008): 646–49. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.646.

Full text

Abstract:

Nanoporous silica films were prepared through the templating of amphiphilic block copolymer, poly(styrene-2-vinyl pyridine) (PS-b-P2VP), and colloidal silica nanoparticles. The experimental and theoretical studies suggested that the intermolecular hydrogen bonding was existed between the colloidal silica nanoparticles and PS-b-P2VP. The miscible hybrid and the narrow thermal decomposition of the PS-b-P2VP led to nanopores in the prepared films from the results of TGA, AFM, and TEM. The effects of the loading ratio and P2VP chain length on the morphology and properties of the prepared nanoporou

APA, Harvard, Vancouver, ISO, and other styles

10

Her, Hyun-Jung, Jung-Min Kim, C. J. Kang, and Yong-Sang Kim. "Fabrication of Thin Film Titania with Nanopores, Nanopoles, and Nanopipes by Nanoporous Alumina Template." Journal of Nanoscience and Nanotechnology 8, no. 9 (2008): 4808–12. http://dx.doi.org/10.1166/jnn.2008.ic84.

Full text

Abstract:

We demonstrate the formation of thin film titania (TiO2) with a dense array of nanopores, nanopoles, and nanopipes. The heights of pores, poles, and pipes were approximately 130 nm, 180 nm, and 200 nm, respectively. The aspect ratios of these three structures were approximated between 2 and 3. In order to obtain titania thin films, a nanoporous alumina (Al2O3) template was fabricated by performing a two-step anodization process. The spin-coated titania films were uniformly patterned by a nanoimprinting lithography technique with a textured poly(methyl methacrylate) (PMMA) mold or nanoporous al

APA, Harvard, Vancouver, ISO, and other styles

11

Chou, Chia-Man, Tong-You Wade Wei, Jou-May Maureen Chen, Wei-Ting Chang, Chang-Tze Ricky Yu, and Vincent K. S. Hsiao. "Preparation of Nanoporous Polymer Films for Real-Time Viability Monitoring of Cells." Journal of Nanomaterials 2011 (2011): 1–6. http://dx.doi.org/10.1155/2011/436528.

Full text

Abstract:

We have demonstrated an alternative way to monitor the viability of cells adhered on a nanoporous polymer film in real time. The nanoporous polymer films were prepared by laser interference pattering. During exposure of holographic patterning, the dissolved solvents were phase separated with photocured polymer and the nanopores were created as the solvents evaporated. The diffracted spectra from the nanoporous polymer film responded to each activity of the cell cycle, from initial cell seeding, through growth, and eventual cell death. This cell-based biosensor uses a nanoporous polymer film to

APA, Harvard, Vancouver, ISO, and other styles

12

Estrada, M., C. Reza, J. Salmones, et al. "Synthesis of Nanoporous TiO2 Thin Films for Photocatalytic Degradation of Methylene Blue." Journal of New Materials for Electrochemical Systems 17, no. 1 (2014): 023–28. http://dx.doi.org/10.14447/jnmes.v17i1.439.

Full text

Abstract:

This work reports a structure and photocatalytic activity of nanoporous titania (TiO2) thin films by an anodizing approach. Xray diffraction (XRD), scanning electron microscopy (SEM), and atomic force microscopy (AFM) studies showed that tetragonal anatase was the main phase in the thin films that consisted of countless disordered nanopores in the order of 10 to 15 nm. In the photocatalytic degradation of methylene blue, the titania thin films showed a good photocatalytic activity. 82.2 % methylene blue could be photodegraded by titania thin films with UV radiation. XPS results indicate that d

APA, Harvard, Vancouver, ISO, and other styles

13

Balasankar, Athinarayanan, Raja Venkatesan, Dae-Yeong Jeong, et al. "Facile Fabrication of Hierarchical Structured Anodic Aluminum Oxide Molds for Large-Scale Production of Superhydrophobic Polymer Films." Polymers 16, no. 16 (2024): 2344. http://dx.doi.org/10.3390/polym16162344.

Full text

Abstract:

Anodized aluminum oxide (AAO) molds were used for the production of large-area and inexpensive superhydrophobic polymer films. A controlled anodization methodology was developed for the fabrication of hierarchical micro–nanoporous (HMN) AAO imprint molds (HMN-AAO), where phosphoric acid was used as both an electrolyte and a widening agent. Heat generated upon repetitive high-voltage (195 V) anodization steps is effectively dissipated by establishing a cooling channel. On the HMN-AAO, within the hemispherical micropores, arrays of hexagonal nanopores are formed. The diameter and depth of the mi

APA, Harvard, Vancouver, ISO, and other styles

14

Li, Jianjun, Weiwei Zhang, Yujun Song, Weiting Yin, and Tao Zhang. "Template Transfer Nanoimprint for Uniform Nanopores and Nanopoles." Journal of Nanomaterials 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/9354364.

Full text

Abstract:

A new methodology is developed for the fabrication of nanostructures on substrate based on anodized Al2O3(AAO) porous template transfer process. It includes (1) forming amorphous alloy, negative UV-resist resin (i.e., SU-8), or PMMA (polymethylmethacrylate) plate nanorod arrays by hot-press molding amorphous alloy, negative UV-resist resin (i.e., SU-8), or PMMA plate into the anodized Al2O3porous substrates; (2) removing AAO templates by chemical etching process after suitable posttreatment (annealing and/or irradiation) to improve the mechanical strength of the nanorod arrays; (3) reforming n

APA, Harvard, Vancouver, ISO, and other styles

15

Ohgai, Takeshi, Masayuki Mizumoto, Shigeki Nomura, and Akio Kagawa. "Electrodeposition of Metallic Nanowires in Nanoporous Polycarbonate Films." Materials Science Forum 539-543 (March 2007): 1253–57. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1253.

Full text

Abstract:

A polycarbonate membrane filter with numerous cylindrical nanopores was used as a template for growing metallic nanowires such as Ni, Co and Fe. The nanoporous template with pore-diameter of 150 nm, pore-length of 6000 nm, and pore-density of 108 pore•cm-2 was modified as a cathode with sputter-deposited gold layer. Inside the nano-pores, the metallic nanowires were electrochemically deposited from an acidic sulfate solution containing metal ions. The growth rate of metallic nanowires depended on the cathode potential during electrodeposition. The diameter of electrodeposited nanowires corresp

APA, Harvard, Vancouver, ISO, and other styles

16

Wang, Sien, Qiyu Chen, and Qing Hao. "Extension of the two-layer model to heat transfer coefficient predictions of nanoporous Si thin films." Applied Physics Letters 121, no. 1 (2022): 012201. http://dx.doi.org/10.1063/5.0099312.

Full text

Abstract:

Heat exchange between a solid material and the gas environment is critical for the heat dissipation of miniature electronic devices. In this aspect, existing experimental studies focus on non-porous structures such as solid thin films, nanotubes, and wires. In this work, the proposed two-layer model for the heat transfer coefficient (HTC) between a solid sample and the surrounding air is extended to 70-nm-thick nanoporous Si thin films that are patterned with periodic rectangular nanopores having feature sizes of 100–400 nm. The HTC values are extracted using the 3[Formula: see text] method ba

APA, Harvard, Vancouver, ISO, and other styles

17

Guo, Huiming, Xin Wang, Alexander D. Dupuy, Julie M. Schoenung, and William J. Bowman. "Growth of nanoporous high-entropy oxide thin films by pulsed laser deposition." Journal of Materials Research 37, no. 1 (2022): 124–35. http://dx.doi.org/10.1557/s43578-021-00473-2.

Full text

Abstract:

AbstractHigh-entropy oxides (HEO) with entropic stabilization and compositional flexibility have great potential application in batteries and catalysis. In this work, HEO thin films were synthesized by pulsed laser deposition (PLD) from a rock-salt (Co0.2Ni0.2Cu0.2Mg0.2Zn0.2)O ceramic target. The films exhibited the target’s crystal structure, were chemically homogeneous, and possessed a three-dimensional (3D) island morphology with connected randomly shaped nanopores. The effects of varying PLD laser fluence on crystal structure and morphology were explored systematically. Increasing fluence

APA, Harvard, Vancouver, ISO, and other styles

18

P., Vengatesh, Karthik Kumar C., and S. Shyju T. "One-dimensional TiO2 by electrochemical anodization of DC sputtered Ti films." Journal of Indian Chemical Society Vol. 96, Jan 2019 (2019): 100–102. https://doi.org/10.5281/zenodo.5653065.

Full text

Abstract:

Centre of Excellence for Energy Research, Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai-600 119, India <em>E-mail</em>: shyjuantony1983@gmail.com Department of Physics, Faculty of Physical and Mathematical Sciences, Post Box 160-C, University of Concepcion, Concepcion, Chile <em>Manuscript received online 01 September 2018, accepted 10 October 2018</em> In the present work, we have deposited titanium (Ti) thin films on FTO substrates by DC magnetron sputtering and subsequently formed nanoporous titanium dioxide (TiO<sub>2</sub> ) via electro

APA, Harvard, Vancouver, ISO, and other styles

19

Zhanabaev, Z. Zh. "WIDTH OF ENERGY BAND GAP OF NANOPOROUS SEMICONDUCTOR FILMS." Eurasian Physical Technical Journal 17, no. 2 (2020): 39–44. http://dx.doi.org/10.31489/2020no2/39-44.

Full text

Abstract:

The aim of this work is to experimentally clarify the reasons for the appearance of jumps in the current and memory of semiconductor nanoporous structures.Porous nanostructures were obtained by electrochemical etching. The current-voltage characteristics of the samples were measured for porous silicon and on thin films of a chalcogenide glassy semiconductor. The existence of jump-like switching and current hysteresis in porous silicon nanofilms under laser illumination is shown experimentally.A connection between the switching voltage values and the dependence of the band gap on the porosity o

APA, Harvard, Vancouver, ISO, and other styles

20

Rho, Yecheol, Byungcheol Ahn, Jinhwan Yoon, and Moonhor Ree. "Comprehensive synchrotron grazing-incidence X-ray scattering analysis of nanostructures in porous polymethylsilsesquioxane dielectric thin films." Journal of Applied Crystallography 46, no. 2 (2013): 466–75. http://dx.doi.org/10.1107/s0021889812050923.

Full text

Abstract:

A complete grazing-incidence X-ray scattering (GIXS) formula has been derived for nanopores buried in a polymer dielectric thin film supported by a substrate. Using the full power of the scattering formula, GIXS data from nanoporous polymethylsilsesquioxane dielectric thin films, a model nanoporous system, have successfully been analysed. The nanopores were found to be spherical and to have a certain degree of size distribution but were randomly dispersed in the film. In the film, GIXS was confirmed to arise predominantlyviathe first scattering process in which the incident X-ray beam scatters

APA, Harvard, Vancouver, ISO, and other styles

21

López Antón, Ricardo, Victor Vega, V. M. Prida, A. Fernández, K. R. Pirota, and Manuel Vázquez. "Magnetic Properties of Hexagonally Ordered Arrays of Fe Antidots by Vacuum Thermal Evaporation on Nanoporous Alumina Templates." Solid State Phenomena 152-153 (April 2009): 273–76. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.273.

Full text

Abstract:

Highly ordered arrays of Fe antidot films were fabricated by thermal vapor deposition technique using nanoporous alumina templates. The film thickness varies from 20 up to 100 nm, and the antidots array has about 50 nm in diameter and 105 nm of periodic interspacing. Scanning electron microscopy and atomic force microscopy measurements confirmed that the Fe antidots film retains the well-ordered hexagonal structure of the nanoporous alumina template. Meanwhile, the micromagnetic structure was studied by magnetic force microscopy and SQUID measurements. A stripe magnetic domain pattern featurin

APA, Harvard, Vancouver, ISO, and other styles

22

Goncharov, A., A. Guglya, A. Kalchenko, E. Solopikhina, V. Vlasov, and E. Lyubchenko. "Nanocrystalline Porous Hydrogen Storage Based on Vanadium and Titanium Nitrides." Journal of Nanotechnology 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/4106067.

Full text

Abstract:

This review summarizes results of our study of the application of ion-beam assisted deposition (IBAD) technology for creation of nanoporous thin-film structures that can absorb more than 6 wt.% of hydrogen. Data of mathematical modeling are presented highlighting the structure formation and component creation of the films during their deposition at the time of simultaneous bombardment by mixed beam of nitrogen and helium ions with energy of 30 keV. Results of high-resolution transmission electron microscopy revealed that VNxfilms consist of 150–200 nm particles, boundaries of which contain nan

APA, Harvard, Vancouver, ISO, and other styles

23

Castro, Alichandra, Paula Ferreira, Brian J. Rodriguez, and Paula M. Vilarinho. "The role of nanoporosity on the local piezo and ferroelectric properties of lead titanate thin films." Journal of Materials Chemistry C 3, no. 5 (2015): 1035–43. http://dx.doi.org/10.1039/c4tc02378a.

Full text

Abstract:

Nanoporous PbTiO<sub>3</sub> films present enhanced tetragonality at lower temperatures than respective dense films. Moreover, the porosity present in the nanoporous films allows an increase of the local piezoelectric response and a decrease of the local coercive field. As a result, these nanoporous films might be used to improve the switching behaviour of ferroelectric thin films.

APA, Harvard, Vancouver, ISO, and other styles

24

Hernández-Rodríguez, Yazmin Mariela, Primavera Lopez-Salazar, Gabriel Juarez-Diaz, Gabriel Romero Paredes-Rubio, and Ramón Peña-Sierra. "Synthesis and Characterization of Nanoporous ZnO Films by Controlling the Zn Sublimation by Using ZnO/Zn Precursor Films." Materials 15, no. 16 (2022): 5509. http://dx.doi.org/10.3390/ma15165509.

Full text

Abstract:

A reliable process for the formation of nanoporous ZnO films supported on amorphous quartz and (100) silicon substrates via the processing of ZnO/Zn precursor films is reported. The process is based on the sublimation mechanism of Zn implemented in a novel ZnO/Zn precursor film to produce a nanoporous film. A scanning electron microscopy analysis of the nanoporous ZnO films’ surfaces revealed the presence of ZnO nano-features with round tips; in contrast, the nanoporous ZnO films supported on (100) Si substrates showed hexagonal nut-like nanostructures. The crystallite size of the nanoporous Z

APA, Harvard, Vancouver, ISO, and other styles

25

Dor, S., Th Dittrich, A. Ofir, L. Grinis, and A. Zaban. "Postpressing dependence of the effective electron diffusion coefficient in electrophoretically prepared nanoporous ZnO and TiO2 films." Journal of Materials Research 23, no. 4 (2008): 975–80. http://dx.doi.org/10.1557/jmr.2008.0116.

Full text

Abstract:

The porosity of electrophoretically prepared nanoporous ZnO and TiO2 films was systematically decreased by postpressing at different pressures. The nanoporous structure of the films was fixed by sintering after the postpressing procedure. The postpressing-induced change of the internal surface area of the nanoporous films was monitored using the dye-removal technique. The effective electron diffusion coefficient (Deff) of the unpressed nanoporous films depended on the thickness according to Fick’s second law. When pressed, the diffusion coefficient of the films increases significantly. In nano

APA, Harvard, Vancouver, ISO, and other styles

26

Bi, Zhenxing, Osman Anderoglu, Xinghang Zhang, et al. "Nanoporous thin films with controllable nanopores processed from vertically aligned nanocomposites." Nanotechnology 21, no. 28 (2010): 285606. http://dx.doi.org/10.1088/0957-4484/21/28/285606.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Si, Wei, Chang Chen, Gensheng Wu, et al. "High Efficient Seawater Desalination Based on Parallel Nanopore Systems." Nano 16, no. 07 (2021): 2150077. http://dx.doi.org/10.1142/s1793292021500776.

Full text

Abstract:

Graphene is one of the most attractive two-dimensional materials that can be used for efficient desalination due to its ideal physical properties and high performance in ion selectivity and salt rejection. Here, in this paper, molecular dynamics simulations were applied to investigate the possibility of using a parallel nanopore system to pump ions so that the ions of both cation and anion species in the middle compartment could be evacuated at an extremely rapid rate. By building hexagonal parallel single-layer graphene films with spacing of 3.0 nm and changing the pore numbers and surface ch

APA, Harvard, Vancouver, ISO, and other styles

28

Cheng, Yifan, Alexandra Khlyustova, and Rong Yang. "All-dry free radical polymerization inside nanopores: Ion-milling-enabled coating thickness profiling revealed “necking” phenomena." Journal of Vacuum Science & Technology A 40, no. 3 (2022): 033406. http://dx.doi.org/10.1116/6.0001718.

Full text

Abstract:

Conformal coating of nanopores with functional polymer nanolayers is the key to many emerging technologies such as miniature sensors and membranes for advanced molecular separations. While the polymer coatings are often used to introduce functional moieties, their controlled growth under nanoconfinement could serve as a new approach to manipulate the size and shape of coated nanopores, hence, enabling novel functions like molecular separation. However, precise control of coating thickness in the longitudinal direction of a nanopore is limited by the lack of a characterization method to profile

APA, Harvard, Vancouver, ISO, and other styles

29

Jin, Chunming, Sudhakar Nori, Wei Wei, Ravi Aggarwal, Dhananjay Kumar, and Roger J. Narayan. "Pulsed Laser Deposition of Nanoporous Cobalt Thin Films." Journal of Nanoscience and Nanotechnology 8, no. 11 (2008): 6043–47. http://dx.doi.org/10.1166/jnn.2008.483.

Full text

Abstract:

Nanoporous cobalt thin films were deposited on anodized aluminum oxide (AAO) membranes at room temperature using pulsed laser deposition. Scanning electron microscopy demonstrated that the nanoporous cobalt thin films retained the monodisperse pore size and high porosity of the anodized aluminum oxide substrates. Temperature- and field-dependent magnetic data obtained between 10 K and 350 K showed large hysteresis behavior in these materials. The increase of coercivity values was larger for nanoporous cobalt thin films than for multilayered cobalt/alumina thin films. The average diameter of th

APA, Harvard, Vancouver, ISO, and other styles

30

Wang, Yufei, Shuangle Zhang, Zefeng Wu, et al. "Design and Preparation of Nanoporous Cu/Ag Multilayer Films." Coatings 11, no. 10 (2021): 1187. http://dx.doi.org/10.3390/coatings11101187.

Full text

Abstract:

Cu30Al70 and Ag30Al70 multilayer precursor films were prepared by magnetron sputtering, respectively. Then the nanoporous Cu/Ag multilayer composite films were successfully prepared by selecting the appropriate H2SO4 solution as the dealloying solution. It was found that the nanoporous structure was stable in the dealloying solution. The morphology and structure of nanoporous multilayer films are mainly related to the phase composition of precursors. The structure of nanoporous multilayers can be simply regarded as the superposition of single-layer structures. Our work shows that nanoporous mu

APA, Harvard, Vancouver, ISO, and other styles

31

Villalobos, Luis Francisco, Mohammad Tohidi Vahdat, Mostapha Dakhchoune, et al. "Large-scale synthesis of crystalline g-C3N4 nanosheets and high-temperature H2 sieving from assembled films." Science Advances 6, no. 4 (2020): eaay9851. http://dx.doi.org/10.1126/sciadv.aay9851.

Full text

Abstract:

Poly(triazine imide) (PTI), a crystalline g-C3N4, hosting two-dimensional nanoporous structure with an electron density gap of 0.34 nm, is highly promising for high-temperature hydrogen sieving because of its high chemical and thermal robustness. Currently, layered PTI is synthesized in potentially unsafe vacuum ampules in milligram quantities. Here, we demonstrate a scalable and safe ambient pressure synthesis route leading to several grams of layered PTI platelets in a single batch with 70% yield with respect to the precursor. Solvent exfoliation under anhydrous conditions led to single-laye

APA, Harvard, Vancouver, ISO, and other styles

32

Robbennolt, Shauna, Pengmei Yu, Aliona Nicolenco, Pau Mercier Fernandez, Mariona Coll, and Jordi Sort. "Magneto-ionic control of magnetism in two-oxide nanocomposite thin films comprising mesoporous cobalt ferrite conformally nanocoated with HfO2." Nanoscale 12, no. 10 (2020): 5987–94. http://dx.doi.org/10.1039/c9nr10868h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Voon, Chun Hong, Bee Ying Lim, Uda Hashim, et al. "Effect of Temperature of Distilled Water on the Morphology of Nanoporous Zinc Oxide Synthesized by Anodizing." Applied Mechanics and Materials 754-755 (April 2015): 1131–35. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.1131.

Full text

Abstract:

In this work, the effect of temperature of distilled water on the morphology of ZnO nanoporous thin films formed by anodizing was studied. ZnO nanoporous thin films were formed by anodizing of Zn plates at voltage 30 V in 500 ml distilled water of temperature ranged from 5 °C to 25°C. As anodized zinc plates were characterized by using SEM and XRD. Characterization of as anodized Zn plates using SEM showed that the morphologies of the as anodized Zn plates were significantly influenced by the temperature of distilled water. Nanoporous ZnO thin films were formed when 15 °C to 25 °C were used wh

APA, Harvard, Vancouver, ISO, and other styles

34

Dutt, Shankar, Rudradeep Chakraborty, Christian Notthoff, Pablo Mota-Santiago, Christina Trautmann, and Patrick Kluth. "Characterization of ion track-etched conical nanopores in thermal and PECVD SiO₂ using small angle X-ray scattering." Beilstein Journal of Nanotechnology 16 (June 12, 2025): 899–909. https://doi.org/10.3762/bjnano.16.68.

Full text

Abstract:

Conical nanopores in amorphous SiO2 thin films fabricated using the ion track etching technique show promising potential for filtration, sensing, and nanofluidic applications. The characterization of the pore morphology and size distribution, along with its dependence on the material properties and fabrication parameters, is crucial to designing nanopore systems for specific applications. Here, we present a comprehensive study of track-etched nanopores in thermal and plasma-enhanced chemical vapor-deposited (PECVD) SiO2 using synchrotron-based small-angle X-ray scattering (SAXS). The nanopores

APA, Harvard, Vancouver, ISO, and other styles

35

Yim, Jin-Heong, Jongseob Kim, David W. Gidley, et al. "Calixarene Derivatives as Novel Nanopore Generators for Templates of Nanoporous Thin Films." Macromolecular Materials and Engineering 291, no. 4 (2006): 369–76. http://dx.doi.org/10.1002/mame.200500370.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Maklakova, Irina A., Oleg V. Gradov, Margaret A. Gradova, and Pavel L. Aleksandrov. "Comparison of SEM-Assisted Nanoporometric and Microporometric Morphometric Techniques Applied for the Ultramicroporous Polymer Films." Key Engineering Materials 899 (September 8, 2021): 660–74. http://dx.doi.org/10.4028/www.scientific.net/kem.899.660.

Full text

Abstract:

One of the most important applications of polymeric porous nanomaterials is the design of nanoporous structures for operation in patch-clamp systems allowing to establish a gigaohm contact, as well as for the measurements of biomolecules, informational macromolecules, including DNA, translocating through the nanopore arrays. Development of nanopore sequencing techniques leads to fundamentally new big data arrays, but their representativeness and validity, as well as the validity of counting of biomacromolecular particles based on ultramicropore arrays, strongly depends both on the pore size (i

APA, Harvard, Vancouver, ISO, and other styles

37

Yuuki, Kazuo, Yuuki Sato, and Shinzo Yoshikado. "Fabrication of Nanoporous Titanium Dioxide Films Using Aerosol Deposition." Key Engineering Materials 582 (September 2013): 141–44. http://dx.doi.org/10.4028/www.scientific.net/kem.582.141.

Full text

Abstract:

Fabrication of nanoporous titanium dioxide (TiO2) films was examined for their application as the negative electrode of a dye-sensitized solar cell (DSC). Composite films were fabricated by aerosol deposition using a powder mixture of TiO2and aluminum nitride (AlN). A nanoporous structure was subsequently formed in the film by dissolving the AIN in hot water. Remarkable differences in the surface morphology of the films were observed for different mixing ratios of TiO2and AlN particles. AlN particles remained in the films, but not at the surface. The power conversion efficiency of a DSC was im

APA, Harvard, Vancouver, ISO, and other styles

38

Shi, Li, Zhao Li, Licheng Ju, et al. "Promoting nitrogen photofixation over a periodic WS2@TiO2 nanoporous film." Journal of Materials Chemistry A 8, no. 3 (2020): 1059–65. http://dx.doi.org/10.1039/c9ta12743g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Kılıç, Bayram, Emre Gür, and Sebahattin Tüzemen. "Nanoporous ZnO Photoelectrode for Dye-Sensitized Solar Cell." Journal of Nanomaterials 2012 (2012): 1–7. http://dx.doi.org/10.1155/2012/474656.

Full text

Abstract:

Nanoporous and macroporous structures were prepared by using self-assembled monolayer (SAM) onto ZnO thin films in order to investigate the efficiency of dye-sensitized solar cells (DSSCs) produced using these films. Using SAM on ZnO thin films, it is obtained successfully assembled large-area, highly ordered porous ZnO thin films. Varying nanoporous radius is observed between 20 and 50 nm sizes, while it is 500–800 nm for macroporous radius. The solar conversion efficiency of 2.75% and IPCE of 29% was obtained using ZnO nanoporous/N719 dye/I−/I3-electrolyte, while macroporous ZnO given solar

APA, Harvard, Vancouver, ISO, and other styles

40

Tan, Shengwei, Ling Zhang, Lijuan Yu, and Lei Xu. "Free-Standing Lipid Bilayers Based on Nanopore Array and Ion Channel Formation." Journal of Nanoscience and Nanotechnology 19, no. 11 (2019): 7149–55. http://dx.doi.org/10.1166/jnn.2019.16674.

Full text

Abstract:

Integrated nanopores are novel and versatile single-molecule sensors for individual label-free biopolymer detection and characterization. However, their studies and application requires a stable lipid bilayer to maintain protein function. Herein, we describe a method for producing lipid bilayers across a nanopore array on a silicon nitride substrate. We used a painting technique commonly used with Teflon films to embed α-hemolysin (α-HL) into bilayer lipid membranes (BLMs) to form an ion channel. This was carried out in nanofluid developed in our lab. The membrane formation process, stability

APA, Harvard, Vancouver, ISO, and other styles

41

Shinagawa, Tsutomu, Yuya Kanemoto, and Atsushi Ohtaka. "Preparation of Oriented Nanoporous Magnetite Films by a Template-Free Solution Process from Iron Oxyhydroxide Films." ECS Meeting Abstracts MA2024-01, no. 25 (2024): 1441. http://dx.doi.org/10.1149/ma2024-01251441mtgabs.

Full text

Abstract:

Nanoporous oxide films composed of nanocrystal assemblies with an aligned crystallographic orientation are key nanostructures for efficient interfacial reactions. However, a simple, template-free method for their formation remains a challenge. Layered metal hydroxide (LMH) films are a promising precursor for spontaneous formation of nanoporous oxide films.[1-4] LMHs have a layered structure comprising 2D sheets of edge-shared octahedral hydroxide, i.e., brucite structure, with or without interlayer anions and water molecules. Calcination of LMH results in dehydration, anion elimination, and vo

APA, Harvard, Vancouver, ISO, and other styles

42

Voon, C. H., M. N. Derman, Uda Hashim, et al. "Synthesis of Nanoporous Zinc Oxide by Anodizing of Zinc in Distilled Water." Applied Mechanics and Materials 754-755 (April 2015): 1126–30. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.1126.

Full text

Abstract:

In this work, ZnO nanoporous thin films were formed by anodizing of Zn plates in 500 ml distilled water of 25°C at voltage ranged from 10 V to 30 V. As anodized zinc plates were characterized by using SEM and XRD. Characterization of as anodized Zn plates using SEM showed that the morphology of the as anodized Zn plates were significantly influenced by the anodizing voltages. Nanoporous ZnO thin films were formed when 25 V and 30 V were used while ZnO thin films without nanoporous structures were formed when 10 V, 15 V and 20 V were used. XRD analysis indicated the ZnO thin films formed at 10

APA, Harvard, Vancouver, ISO, and other styles

43

Benea, Lidia, Anca Ravoiu, Veaceslav Neaga, and Elena Roxana Axente. "Using Applied Electrochemistry to Obtain Nanoporous TiO2 Films on Ti6Al4V Implant Alloys and Their Preclinical In Vitro Characterization in Biological Solutions." Coatings 13, no. 3 (2023): 614. http://dx.doi.org/10.3390/coatings13030614.

Full text

Abstract:

Nanoporous TiO2 film is deposited on grade 5 Ti6Al4V implant alloy by electrochemical oxidation. The nanopores of the film, as highlighted by electron microscopy, have a mean diameter of 58.6 nm, which is measured and calculated from an average value of 10 measurements. The increase in oxygen concentration compared to the untreated alloy, which indicates the oxidation of the titanium alloy surface, is visualized using X-ray spectroscopy coupled to an electron microscope. The beneficial effect of the oxidation and controlled formation of the TiO2 film on the implant alloy is proven by the compa

APA, Harvard, Vancouver, ISO, and other styles

44

Zuo, Jiaqi, Ning-Ning Song, Jia Wang, et al. "Review—Single-Molecule Sensors Based on Protein Nanopores." Journal of The Electrochemical Society 168, no. 12 (2021): 126502. http://dx.doi.org/10.1149/1945-7111/ac39da.

Full text

Abstract:

The recent development of single-molecule sensors (SMS), which detect individual targets one at a time, allows determination of ultra-low concentrations of structurally similar compounds from a complex matrix. Protein nanopores are one of the earliest methods able to resolve the signal from a single molecule, and have already been successfully employed in commercial DNA sequencers. The protein nanopore based SMS, however, remains challenging, largely because the quantitative single-molecule analysis requires recording a sufficient number of signals for statistical significance within a reasona

APA, Harvard, Vancouver, ISO, and other styles

45

Henkelmann, Gideon, and Jorg Weissmuller. "Self-Detachment of Nanoporous Thin Films." ECS Meeting Abstracts MA2023-02, no. 21 (2023): 1278. http://dx.doi.org/10.1149/ma2023-02211278mtgabs.

Full text

Abstract:

Nanoporous metals consist of a network of interconnected ligaments with diameters tunable between 5 and 500 nm. The talk focusses on nanoporous metal thin films prepared by electrochemical dealloying of 300 nm thick Au25Ag75 films deposited on a pure Au base layer. This type of nanoporous gold film is the subject of many studies investigating the material as sensor, as catalyst, or as substrate for energy storage. The massive Au base layer is intended as an adhesion promoter and to prevent the corrosion from attacking the substrate. Yet, contrary to expectation, we observed that the as-dealloy

APA, Harvard, Vancouver, ISO, and other styles

46

Li, Jinglei, Bin Yu, Yunfei Ran, et al. "Synthesis and Structural Modulation of Nanoporous Copper Films by Magnetron Sputtering and One-Step Dealloying." Materials 17, no. 23 (2024): 5705. http://dx.doi.org/10.3390/ma17235705.

Full text

Abstract:

Nanoporous copper (np-Cu) has attracted much more attention due to its lower cost compared to other noble metals and high functionality in practical use. Herein, Al100−xCux(x = 13–88 at.%) precursor films with thicknesses of 0.16–1.1 μm were fabricated by varying magnetron co-sputtering parameters. Subsequently, utilizing a one-step dealloying strategy, a series of np-Cu films with ligament sizes ranging from 11.4–19.0 nm were synthesized. The effects of precursor composition and substrate temperature on the microstructure of np-Cu films were investigated. As the atomic ratio of Cu increases f

APA, Harvard, Vancouver, ISO, and other styles

47

Wi, Eunsol, Vinh Van Tran та Mincheol Chang. "Controlled Nanoporous Structures of Ultrathin π-Conjugated Polymer Films for Highly Sensitive Gas Sensors". ECS Meeting Abstracts MA2022-02, № 64 (2022): 2403. http://dx.doi.org/10.1149/ma2022-02642403mtgabs.

Full text

Abstract:

Conventional OFET-based chemical sensors have severe limitations in terms of sensitivity owing to poor analyte diffusion and poor interaction between the analyte and charge carriers in the CP film. To overcome this drawback, it is imperative to fabricate CP films that can facilitate analyte diffusion and provide large adsorption sites for interactions between the analytes and charge carriers concentrated in the conducting channel of OFETs. This study is to develop a facile strategy to fabricate ultrathin nanoporous Conducting polymer(CP) films for high-performance OFET gas sensors based on she

APA, Harvard, Vancouver, ISO, and other styles

48

Miu, Dana, Ruxandra Birjega, and Cristian Viespe. "Surface Acoustic Wave Hydrogen Sensors Based on Nanostructured Pd/WO3 Bilayers." Sensors 18, no. 11 (2018): 3636. http://dx.doi.org/10.3390/s18113636.

Full text

Abstract:

The effect of nanostructure of PLD (Pulsed Laser Deposition)-deposited Pd/WO3 sensing films on room temperature (RT) hydrogen sensing properties of SAW (Surface Acoustic Wave) sensors was studied. WO3 thin films with different morphologies and crystalline structures were obtained for different substrate temperatures and oxygen deposition pressures. Nanoporous films are obtained at high deposition pressures regardless of the substrate temperature. At lower pressures, high temperatures lead to WO3 c-axis nanocolumnar growth, which promotes the diffusion of hydrogen but only once H2 has been diss

APA, Harvard, Vancouver, ISO, and other styles

49

Slepchenkov, Michael M., Igor S. Nefedov, and Olga E. Glukhova. "Controlling the Electronic Properties of a Nanoporous Carbon Surface by Modifying the Pores with Alkali Metal Atoms." Materials 13, no. 3 (2020): 610. http://dx.doi.org/10.3390/ma13030610.

Full text

Abstract:

We investigate a process of controlling the electronic properties of a surface of nanoporous carbon glass-like thin films when the surface pores are filled with potassium atoms. The presence of impurities on the surface in the form of chemically adsorbed hydrogen and oxygen atoms, and also in the form of hydroxyl (OH) groups, is taken into account. It is found that even in the presence of impurities, the work function of a carbon nanoporous glass-like film can be reduced by several tenths of an electron volt when the nanopores are filled with potassium atoms. At the same time, almost all potas

APA, Harvard, Vancouver, ISO, and other styles

50

Mangkornkarn, Chayangkoon, Benjarong Samransuksamer, Mati Horprathum, Pitak Eiamchai, Apiluck Eiad-Ua, and Korakot Onlaor. "Effect of Anodizing Voltage on Anodic Titanium Dioxide (ATO) Growth Based on an Ethylene Glycol Solution Containing NH₄F." Materials Science Forum 872 (September 2016): 147–51. http://dx.doi.org/10.4028/www.scientific.net/msf.872.147.

Full text

Abstract:

We reported on the influence of applied voltage on the surface morphology of anodic titanium dioxide (ATO) thin films. At first, titanium (Ti) thin films were prepared by DC-magnetron sputtering for use as a base material in the anodization process. The titanium dioxide (TiO2) nanoporous ATO was fabricated by the anodization process from the Ti thin film, with different applied voltages from 20 V to 60 V in an electrolyte based on an ethylene glycol containing NH4F. Pore size distribution of ATO thin films can be varied from 20-50 nm by increasing the applied voltage, while the thickness of th

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!