A review of schemes for fingerprint image quality computation

Fingerprint image quality affects heavily the performance of fingerprint recognition systems. This paper reviews existing approaches for fingerprint image quality computation. We also implement, test and compare a selection of them using the MCYT database including 9000 fingerprint images. Experimental results show that most of the algorithms behave similarly.Comment: Published at 3rd COST-275 Workshop on Biometrics on the Internet. arXiv admin note: text overlap with arXiv:2111.0743

On the Effects of Image Quality Degradation on Minutiae- and Ridge-Based Automatic Fingerprint Recognition

The effect of image quality degradation on the verification performance of automatic fingerprint recognition is investigated. We study the performance of two fingerprint matchers based on minutiae and ridge information under varying fingerprint image quality. The ridge-based system is found to be more robust to image quality degradation than the minutiae-based system for a number of different image quality criteria.Comment: Published at IEEE International Carnahan Conference on Security Technology (ICCST

Fingerprint Image-Quality Estimation and its Application to Multialgorithm Verification

Signal-quality awareness has been found to increase recognition rates and to support decisions in multisensor environments significantly. Nevertheless, automatic quality assessment is still an open issue. Here, we study the orientation tensor of fingerprint images to quantify signal impairments, such as noise, lack of structure, blur, with the help of symmetry descriptors. A strongly reduced reference is especially favorable in biometrics, but less information is not sufficient for the approach. This is also supported by numerous experiments involving a simpler quality estimator, a trained method (NFIQ), as well as the human perception of fingerprint quality on several public databases. Furthermore, quality measurements are extensively reused to adapt fusion parameters in a monomodal multialgorithm fingerprint recognition environment. In this study, several trained and nontrained score-level fusion schemes are investigated. A Bayes-based strategy for incorporating experts past performances and current quality conditions, a novel cascaded scheme for computational efficiency, besides simple fusion rules, is presented. The quantitative results favor quality awareness under all aspects, boosting recognition rates and fusing differently skilled experts efficiently as well as effectively (by training).Comment: Published at IEEE Transactions on Information Forensics and Securit

Yerba Mate Modulates Tumor Cells Functions Involved in Metastasis in Breast Cancer Models

Breast cancer (BC) is the most frequent cancer in women and tumor metastasis is a major cause of cancer-related deaths. Our aim was to evaluate anti-metastatic properties of yerba mate extract (YMe) in BC models. 4T1, F3II, MCF-7, and MDA-MB231 cell lines were used to perform in vitro assays. The F3II syngeneic mammary carcinoma model in BALB/c mice was used to evaluate tumor progression, BC metastasis and survival. Cells were inoculated subcutaneously into the flank for the heterotopic model and into the mammary fat pad for the orthotopic model. YMe was administered p.o. in a dose of 1.6 g/kg/day. In vitro YMe inhibited cell proliferation and reduced tumor cell adhesion, migration and invasion. These biological effects were cell-line dependent. In vivo YMe reduced tumor metastasis and increased mice survival in both models. Our preclinical results suggest that YMe could modulate tumor progression and metastasis in BC models.Fil: Garcia Lazaro, Rocio Soledad. Universidad Nacional de Quilmes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Caligiuri, Lorena Gisel. Universidad Nacional de Quilmes; ArgentinaFil: Lorenzo Pérez, Norailys. Universidad Nacional de Quilmes; ArgentinaFil: Lamdan, Humberto. Universidad Nacional de Quilmes; ArgentinaFil: Alonso, Daniel Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Quilmes; ArgentinaFil: Farina, Hernán Gabriel. Universidad Nacional de Quilmes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Anti-proliferative effects of a blueberry extract on a panel of tumor cell lines of different origin

Background: Blueberries are among the fruits with the highest antioxidant activity and have been recognized by their health promoting properties. Aim:In vitro study of the anti-proliferative effects of a blueberry extract on a panel of cancer cells from different origin. Materials and Methods: A blueberry extract was produced using ethanol as extracting solvent. The anti-proliferative activity of the extract was evaluated against seven tumor cell lines. The properties of blueberry extract to decrease cell adhesion and migration were also investigated. Results: Blueberry extract showed a dose-dependent inhibitory effect on cell proliferation for all cell lines. Non-cytotoxic concentrations of the extract decreased cell adhesion in five of seven cell lines studied and inhibited the migration of MDA-MB-231 and PC-3 tumor cells. Conclusion: This work provides additional evidence regarding the ability of blueberry extract to inhibit the growth and decrease cell adhesion and migration of different cancer cell lines in vitro. Key Words: anthocyanins, anti-proliferative, blueberry extract, cancer, polyphenols.Fil: Lamdan Ordas, Humberto. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; ArgentinaFil: Garcia Lazaro, Rocio Soledad. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lorenzo Pérez, Norailys. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; ArgentinaFil: Caligiuri, Lorena Gisel. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; ArgentinaFil: Alonso, Daniel Fernando. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Farina, Hernán Gabriel. Universidad Nacional de Quilmes. Departamento de Ciencia y Tecnología. Laboratorio de Oncología Molecular; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Host-Guest and Guest-Guest Interactions of P- and N-Containing Structure Directing Agents Entrapped inside MFI-Type Zeolite by Multinuclear NMR Spectroscopy

"This document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry C, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.jpcc.9b05689".[EN] Highly crystalline pure silica MFI zeolites have been synthesized using tetraethylammonium (TEA), tetraethylphosphonium (TEP), or a mixture of both cations in different proportions as organic structure directing agents (OSDAs). The zeolites have been deeply characterized in order to get insight about the guest guest interactions involving the OSDAs and the guest host interactions involving the OSDAs and the inorganic framework, as well as the main features of the resulting materials. The results show that the average size of the MFI crystals decreases when TEP is present within the zeolite and that this cation is homogeneously distributed throughout the crystallites. The multinuclear NMR investigation (H-1, C-13, N-14, F-19, Si-29, P-31) indicates that TEP interacts with the zeolite host creating higher heterogeneity of the SiO4 crystallographic sites and a diminution on the mobility of fluorine atoms incorporated into the zeolite. Moreover, the presence of TEP influences the dynamics of the nitrogen atoms of the TEA molecules, and 2D heteronuclear correlation experiments give evidence on the spatial proximity of the TEA and TEP molecules in the MFI zeolites. Then, it is concluded that TEA and TEP are intimately mixed within the zeolite voids of the pure silica MFI samples synthesized by the dual template route.Financial support by the MINECO of Spain through the Severo Ochoa (SEV-2016-0683) and RTI2018-101784-B-I00 projects is gratefully acknowledged. The authors also thank the Microscopy Service of the Universitat Politecnica de Valencia for its assistance in microscopy characterization (FESEM equipment preparation). J.M.-O. (SEV-2012-0267-02) is grateful to the Severo Ochoa Program for a predoctoral fellowship.Martinez-Ortigosa, J.; Simancas-Coloma, J.; Vidal Moya, JA.; Gaveau, P.; Rey Garcia, F.; Alonso, B.; Blasco Lanzuela, T. (2019). Host-Guest and Guest-Guest Interactions of P- and N-Containing Structure Directing Agents Entrapped inside MFI-Type Zeolite by Multinuclear NMR Spectroscopy. The Journal of Physical Chemistry C. 123(36):22324-22334. https://doi.org/10.1021/acs.jpcc.9b05689S223242233412336Davis, M. E., & Lobo, R. F. (1992). Zeolite and molecular sieve synthesis. Chemistry of Materials, 4(4), 756-768. doi:10.1021/cm00022a005Cundy, C. S., & Cox, P. A. (2003). The Hydrothermal Synthesis of Zeolites:  History and Development from the Earliest Days to the Present Time. 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(1995). Zeolites and Zeotypes as catalysts. Advanced Materials, 7(2), 137-144. doi:10.1002/adma.19950070206Corma, A. (1997). From Microporous to Mesoporous Molecular Sieve Materials and Their Use in Catalysis. Chemical Reviews, 97(6), 2373-2420. doi:10.1021/cr960406nBurton, A. W., & Zones, S. I. (2007). Organic Molecules in Zeolite Synthesis: Their Preparation and Structure-Directing Effects. Introduction to Zeolite Science and Practice, 137-179. doi:10.1016/s0167-2991(07)80793-2Moliner, M., Rey, F., & Corma, A. (2013). Towards the Rational Design of Efficient Organic Structure-Directing Agents for Zeolite Synthesis. Angewandte Chemie International Edition, 52(52), 13880-13889. doi:10.1002/anie.201304713Martínez, C., & Corma, A. (2011). Inorganic molecular sieves: Preparation, modification and industrial application in catalytic processes. Coordination Chemistry Reviews, 255(13-14), 1558-1580. doi:10.1016/j.ccr.2011.03.014Sastre, G., Vidal-Moya, J. A., Blasco, T., Rius, J., Jordá, J. L., Navarro, M. T., … Corma, A. (2002). Preferential Location of Ge Atoms in Polymorph C of Beta Zeolite (ITQ-17) and Their Structure-Directing Effect: A Computational, XRD, and NMR Spectroscopic Study. Angewandte Chemie International Edition, 41(24), 4722-4726. doi:10.1002/anie.200290028Chauhan, N. L., Das, J., Jasra, R. V., Parikh, P. A., & Murthy, Z. V. P. (2012). Synthesis of small-sized ZSM-5 zeolites employing mixed structure directing agents. Materials Letters, 74, 115-117. doi:10.1016/j.matlet.2012.01.094Mitani, E., Yamasaki, Y., Tsunoji, N., Sadakane, M., & Sano, T. (2018). Synthesis of phosphorus-modified AFX zeolite using a dual-template method with tetraethylphosphonium hydroxide as phosphorus modification agent. Microporous and Mesoporous Materials, 267, 192-197. doi:10.1016/j.micromeso.2018.03.033Blasco, T., Corma, A., Díaz-Cabañas, M. J., Rey, F., Vidal-Moya, J. A., & Zicovich-Wilson, C. M. (2002). Preferential Location of Ge in the Double Four-Membered Ring Units of ITQ-7 Zeolite. The Journal of Physical Chemistry B, 106(10), 2634-2642. doi:10.1021/jp013302bCamblor, M. A., Villaescusa, L. A., & Díaz‐Cabañas, M. J. (1999). Topics in Catalysis, 9(1/2), 59-76. doi:10.1023/a:1019154304344Koller, H., Wölker, A., Villaescusa, L. A., Díaz-Cabañas, M. J., Valencia, S., & Camblor, M. A. (1999). Five-Coordinate Silicon in High-Silica Zeolites. Journal of the American Chemical Society, 121(14), 3368-3376. doi:10.1021/ja9840549Koller, H., Wölker, A., Eckert, H., Panz, C., & Behrens, P. (1997). Five-Coordinate Silicon in Zeolites: Probing SiO4/2F− Sites in Nonasil and ZSM-5 with29Si Solid-State NMR Spectroscopy. Angewandte Chemie International Edition in English, 36(24), 2823-2825. doi:10.1002/anie.199728231Dědeček, J., Tabor, E., & Sklenak, S. (2018). Tuning the Aluminum Distribution in Zeolites to Increase their Performance in Acid-Catalyzed Reactions. ChemSusChem, 12(3), 556-576. doi:10.1002/cssc.201801959Li, C., Vidal-Moya, A., Miguel, P. J., Dedecek, J., Boronat, M., & Corma, A. (2018). Selective Introduction of Acid Sites in Different Confined Positions in ZSM-5 and Its Catalytic Implications. ACS Catalysis, 8(8), 7688-7697. doi:10.1021/acscatal.8b02112Gallego, E. M., Portilla, M. T., Paris, C., León-Escamilla, A., Boronat, M., Moliner, M., & Corma, A. (2017). «Ab initio» synthesis of zeolites for preestablished catalytic reactions. Science, 355(6329), 1051-1054. doi:10.1126/science.aal0121Simancas, J., Simancas, R., Bereciartua, P. J., Jorda, J. L., Rey, F., Corma, A., … Mugnaioli, E. (2016). Ultrafast Electron Diffraction Tomography for Structure Determination of the New Zeolite ITQ-58. Journal of the American Chemical Society, 138(32), 10116-10119. doi:10.1021/jacs.6b06394Yun, Y., Hernández, M., Wan, W., Zou, X., Jordá, J. L., Cantín, A., … Corma, A. (2015). The first zeolite with a tri-directional extra-large 14-ring pore system derived using a phosphonium-based organic molecule. Chemical Communications, 51(36), 7602-7605. doi:10.1039/c4cc10317cSonoda, T., Maruo, T., Yamasaki, Y., Tsunoji, N., Takamitsu, Y., Sadakane, M., & Sano, T. (2015). Synthesis of high-silica AEI zeolites with enhanced thermal stability by hydrothermal conversion of FAU zeolites, and their activity in the selective catalytic reduction of NOx with NH3. Journal of Materials Chemistry A, 3(2), 857-865. doi:10.1039/c4ta05621cKakiuchi, Y., Tanigawa, T., Tsunoji, N., Takamitsu, Y., Sadakane, M., & Sano, T. (2019). Phosphorus modified small-pore zeolites and their catalytic performances in ethanol conversion and NH3-SCR reactions. Applied Catalysis A: General, 575, 204-213. doi:10.1016/j.apcata.2019.02.026Van der Bij, H. E., & Weckhuysen, B. M. (2015). Phosphorus promotion and poisoning in zeolite-based materials: synthesis, characterisation and catalysis. Chemical Society Reviews, 44(20), 7406-7428. doi:10.1039/c5cs00109aBLASCO, T., CORMA, A., & MARTINEZTRIGUERO, J. (2006). Hydrothermal stabilization of ZSM-5 catalytic-cracking additives by phosphorus addition. Journal of Catalysis, 237(2), 267-277. doi:10.1016/j.jcat.2005.11.011Liu, X., & Luo, Q. (2017). Solid State NMR Spectroscopy Studies of the Nature of Structure Direction of OSDAs in Pure-Silica Zeolites ZSM-5 and Beta. The Journal of Physical Chemistry C, 121(24), 13211-13217. doi:10.1021/acs.jpcc.7b03350Fyfe, C. A., & Brouwer, D. H. (2006). Optimization, Standardization, and Testing of a New NMR Method for the Determination of Zeolite Host−Organic Guest Crystal Structures. Journal of the American Chemical Society, 128(36), 11860-11871. doi:10.1021/ja060744yDib, E., Gimenez, A., Mineva, T., & Alonso, B. (2015). Preferential orientations of structure directing agents in zeolites. Dalton Transactions, 44(38), 16680-16683. doi:10.1039/c5dt02558cDib, E., Mineva, T., Gaveau, P., & Alonso, B. (2013). 14N solid-state NMR: a sensitive probe of the local order in zeolites. Physical Chemistry Chemical Physics, 15(42), 18349. doi:10.1039/c3cp51845kDib, E., Mineva, T., Gaveau, P., Véron, E., Sarou-Kanian, V., Fayon, F., & Alonso, B. (2017). Probing Disorder in Al-ZSM-5 Zeolites by 14N NMR Spectroscopy. The Journal of Physical Chemistry C, 121(29), 15831-15841. doi:10.1021/acs.jpcc.7b04861Tuel, A., Ben Taǎrit, Y., & Naccache, C. (1993). Characterization of TS-1 synthesized using mixtures of tetrabutyl and tetraethyl ammonium hydroxides. Zeolites, 13(6), 454-461. doi:10.1016/0144-2449(93)90120-rDing, J., Xue, T., Wu, H., & He, M. (2017). One-step post-synthesis treatment for preparing hydrothermally stable hierarchically porous ZSM-5. Chinese Journal of Catalysis, 38(1), 48-57. doi:10.1016/s1872-2067(16)62549-4Schmidt-Rohr, K., Clauss, J., & Spiess, H. W. (1992). Correlation of structure, mobility, and morphological information in heterogeneous polymer materials by two-dimensional wideline-separation NMR spectroscopy. Macromolecules, 25(12), 3273-3277. doi:10.1021/ma00038a037Massiot, D., Fayon, F., Capron, M., King, I., Le Calvé, S., Alonso, B., … Hoatson, G. (2001). Modelling one- and two-dimensional solid-state NMR spectra. Magnetic Resonance in Chemistry, 40(1), 70-76. doi:10.1002/mrc.984Chen, X., Yan, W., Cao, X., Yu, J., & Xu, R. (2009). Fabrication of silicalite-1 crystals with tunable aspect ratios by microwave-assisted solvothermal synthesis. Microporous and Mesoporous Materials, 119(1-3), 217-222. doi:10.1016/j.micromeso.2008.10.015Schmidt, J. E., Fu, D., Deem, M. W., & Weckhuysen, B. M. (2016). Template–Framework Interactions in Tetraethylammonium‐Directed Zeolite Synthesis. Angewandte Chemie International Edition, 55(52), 16044-16048. doi:10.1002/anie.201609053Baerlocher, Ch.; McCusker, L. B. Database of Zeolite Structures. http://www.iza-structure.org/databases/.Fyfe, C. A., Brouwer, D. H., Lewis, A. R., Villaescusa, L. A., & Morris, R. E. (2002). Combined Solid State NMR and X-ray Diffraction Investigation of the Local Structure of the Five-Coordinate Silicon in Fluoride-Containing As-Synthesized STF Zeolite. Journal of the American Chemical Society, 124(26), 7770-7778. doi:10.1021/ja012558sFyfe, C. A., Brouwer, D. H., Lewis, A. R., & Chézeau, J.-M. (2001). Location of the Fluoride Ion in Tetrapropylammonium Fluoride Silicalite-1 Determined by 1H/19F/29Si Triple Resonance CP, REDOR, and TEDOR NMR Experiments. Journal of the American Chemical Society, 123(28), 6882-6891. doi:10.1021/ja010532vBrunklaus, G., Koller, H., & Zones, S. I. (2016). Defect Models of As-Made High-Silica Zeolites: Clusters of Hydrogen-Bonds and Their Interaction with the Organic Structure-Directing Agents Determined from1H Double and Triple Quantum NMR Spectroscopy. 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Plasmonic nanodevice with magnetic funcionalities: fabrication and characterization

We have designed and fabricated a nanodevice exhibiting simultaneously ferromagnetic properties of nanostructures with plasmonic properties of continuous films. Our device consists of an array of nanomagnets on top of a continuous plasmonic film. The patterned nanomagnets magnetic state is single domain and well-defined shape anisotropy. Despite the presence of the patterned media on top of the Au film, the system exhibits surface plasmon resonance characteristics of a continuous film, i.e., propagating surface plasmon-polaritons

Multicomponent synthesis of 4,4-dimethyl sterol analogues and their effect on eukaryotic cells

Most sterols, such as cholesterol and ergosterol, become functional only after the removal of the two methyl groups at C-4 from their biosynthetic precursors. Nevertheless, some findings suggest that 4,4-dimethyl sterols might be involved in specific physiological processes. In this paper we present the synthesis of a collection of analogues of 4,4-dimethyl sterols with a diamide side chain and a preliminary analysis of their in vitro activity on selected biological systems. The key step for the synthesis involves an Ugi condensation, a versatile multicomponent reaction. Some of the new compounds showed antifungal and cytotoxic activity.Fil: Alonso, Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; ArgentinaFil: Cirigliano, Adriana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; ArgentinaFil: Davola, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Cabrera, Gabriela Myriam. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; ArgentinaFil: Garcia Liñares, Guadalupe Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; ArgentinaFil: Labriola, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; ArgentinaFil: Barquero, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Ramirez, Javier Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad de Microanálisis y Métodos Físicos en Química Orgánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Unidad de Microanálisis y Métodos Físicos en Química Orgánica; Argentin