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Serratos IN, Luviano AS, Millan-Pacheco C, Morales-Corona J, Alvarado Muñoz EJ, Campos-Terán J, Olayo R. Quartz Crystal Microbalance Application and In Silico Studies to Characterize the Interaction of Bovine Serum Albumin with Plasma Polymerized Pyrrole Surfaces: Implications for the Development of Biomaterials. Langmuir 2023; 39:11213-11223. [PMID: 37526362 PMCID: PMC10921548 DOI: 10.1021/acs.langmuir.3c00308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 07/14/2023] [Indexed: 08/02/2023]
Abstract
Plasma polymerized pyrrole/iodine (PPPy/I) microparticles and bovine serum albumin (BSA) protein have shown interesting results in experimental models for the treatment of traumatic spinal cord injury. By studying the interaction between BSA and PPPy/I by a quartz crystal microbalance (QCM) and docking, we obtained important results to elucidate possible cellular interactions and promote the use of these polymers as biomaterials. These measurements were also used to characterize the adsorption process using an equilibrium constant. In addition, atomic force microscopy (AFM) was used to obtain images of the QCM surface sensors before and after BSA adsorption. Furthermore, we carried out molecular dynamics simulations and molecular docking to characterize the molecular recognition between BSA and the previously reported PPPy/I structure. For this study, we used two combinatorial models that have not been tested. Thus, we could determine the electrostatic (ΔGele) and nonelectrostatic (ΔGnonelec) components of the free binding energy (ΔGb). We demonstrated that BSA is adsorbed on PPPy/I with an adsorption constant of K = 24.35 μ-1 indicating high affinity. This observation combined with molecular docking and binding free energy calculations showed that the interaction between BSA and both combinatorial models of the PPPy structure is spontaneous.
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Affiliation(s)
- Iris N. Serratos
- Departamento
de Química, Universidad Autónoma
Metropolitana-Iztapalapa, Ciudad
de México 09340, México
| | - Alberto S. Luviano
- Laboratorio
de Biofisicoquímica, Departamento de Fisicoquímica,
Facultad de Química, Universidad
Nacional Autónoma de México, Ciudad de México 04510, México
| | - Cesar Millan-Pacheco
- Facultad
de Farmacia, Universidad Autónoma
del Estado de Morelos, Morelos 62209, México
| | - Juan Morales-Corona
- Departamento
de Física, Universidad Autónoma
Metropolitana-Iztapalapa, Ciudad
de México 09340, México
| | | | - José Campos-Terán
- Departamento
de Procesos y Tecnología, Universidad
Autónoma Metropolitana-Cuajimalpa, Ciudad de México 05348, México
| | - Roberto Olayo
- Departamento
de Física, Universidad Autónoma
Metropolitana-Iztapalapa, Ciudad
de México 09340, México
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2
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Coyoy-Salgado A, Orozco-Barrios C, Sánchez-Torres S, Olayo MG, Cruz GJ, Morales-Corona J, Olayo R, Diaz-Ruiz A, Ríos C, Alvarez-Mejia L, Mondragón-Lozano R, Morales-Guadarrama A, Alonso-García AL, Fabela-Sánchez O, Salgado-Ceballos H. Gene expression and locomotor recovery in adult rats with spinal cord injury and plasma-synthesized polypyrrole/iodine application combined with a mixed rehabilitation scheme. Front Neurol 2023; 14:1124245. [PMID: 37288064 PMCID: PMC10243140 DOI: 10.3389/fneur.2023.1124245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/14/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction Spinal cord injury (SCI) can cause paralysis, for which effective therapeutic strategies have not been developed yet. The only accepted strategy for patients is rehabilitation (RB), although this does not allow complete recovery of lost functions, which makes it necessary to combine it with strategies such as plasma-synthesized polypyrrole/iodine (PPy/I), a biopolymer with different physicochemical properties than PPy synthesized by conventional methods. After SCI in rats, PPy/I promotes functional recovery. Therefore, the purpose of this study was to increase the beneficial effects of both strategies and identify which genes activate PPy/I when applied alone or in combination with a mixed scheme of RB by swimming and enriched environment (SW/EE) in rats with SCI. Methods Microarray analysis was performed to identify mechanisms of action underlying the effects of PPy/I and PPy/I+SW/EE on motor function recovery as evaluated by the BBB scale. Results Results showed robust upregulation by PPy/I in genes related to the developmental process, biogenesis, synapse, and synaptic vesicle trafficking. In addition, PPy/I+SW/EE increased the expression of genes related to proliferation, biogenesis, cell development, morphogenesis, cell differentiation, neurogenesis, neuron development, and synapse formation processes. Immunofluorescence analysis showed the expression of β-III tubulin in all groups, a decreased expression of caspase-3 in the PPy/I group and GFAP in the PPy/I+SW/EE group (p < 0.05). Better preservation of nerve tissue was observed in PPy/I and PPy/SW/EE groups (p < 0.05). In the BBB scale, the control group scored 1.72 ± 0.41, animals with PPy/I treatment scored 4.23 ± 0.33, and those with PPy/I+SW/EE scored 9.13 ± 0.43 1 month after follow-up. Conclusion Thus, PPy/I+SW/EE could represent a therapeutic alternative for motor function recovery after SCI.
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Affiliation(s)
- Angélica Coyoy-Salgado
- Researchers for Mexico CONACyT-Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
| | - Carlos Orozco-Barrios
- Researchers for Mexico CONACyT-Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
| | - Stephanie Sánchez-Torres
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
- Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
| | - María Guadalupe Olayo
- Instituto Nacional de Investigaciones Nucleares, Department of Physics, Axapusco, Mexico
| | - Guillermo Jesus Cruz
- Instituto Nacional de Investigaciones Nucleares, Department of Physics, Axapusco, Mexico
| | - Juan Morales-Corona
- Department of Physics, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico
| | - Roberto Olayo
- Department of Physics, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico
| | - Araceli Diaz-Ruiz
- Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., Department of Neurochemistry, Mexico City, Mexico
| | - Camilo Ríos
- Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., Department of Neurochemistry, Mexico City, Mexico
| | - Laura Alvarez-Mejia
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
- Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
| | - Rodrigo Mondragón-Lozano
- Researchers for Mexico CONACyT-Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
| | - Axayacatl Morales-Guadarrama
- Electrical Engineering Department, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico
- National Center for Research in Imaging and Medical Instrumentation, Universidad Autónoma Metropolitana Iztapalapa, Mexico City, Mexico
| | | | - Omar Fabela-Sánchez
- Researchers for Mexico CONACyT-Centro de Investigación en Química Aplicada, Department of Chemistry Macromolecules and Nanomaterials, Saltillo, Mexico
| | - Hermelinda Salgado-Ceballos
- Research Center of the Proyecto CAMINA A.C., Mexico City, Mexico
- Instituto Mexicano del Seguro Social, Medical Research Unit in Neurological Diseases, Specialty Hospital, National Medical Center Siglo XXI, Mexico City, Mexico
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3
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Gómez LM, Cruz GJ, González-Torres M, Morales J, Olayo R, Ramírez R, Flores-Nava FG, Olayo MG. Attachment and permanence of polyaniline coatings on stainless steel submerged in saline fluids. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04222-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Morales-Guadarrama A, Salgado-Ceballos H, Grijalva I, Morales-Corona J, Hernández-Godínez B, Ibáñez-Contreras A, Ríos C, Diaz-Ruiz A, Cruz GJ, Olayo MG, Sánchez-Torres S, Mondragón-Lozano R, Alvarez-Mejia L, Fabela-Sánchez O, Olayo R. Evolution of Spinal Cord Transection of Rhesus Monkey Implanted with Polymer Synthesized by Plasma Evaluated by Diffusion Tensor Imaging. Polymers (Basel) 2022; 14:polym14050962. [PMID: 35267785 PMCID: PMC8912689 DOI: 10.3390/polym14050962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/18/2022] [Accepted: 02/24/2022] [Indexed: 02/04/2023] Open
Abstract
In spinal cord injury (SCI) there is damage to the nervous tissue, due to the initial damage and pathophysiological processes that are triggered subsequently. There is no effective therapeutic strategy for motor functional recovery derived from the injury. Several studies have demonstrated neurons growth in cell cultures on polymers synthesized by plasma derived from pyrrole, and the increased recovery of motor function in rats by implanting the polymer in acute states of the SCI in contusion and transection models. In the process of transferring these advances towards humans it is recommended to test in mayor species, such as nonhuman primates, prioritizing the use of non-invasive techniques to evaluate the injury progression with the applied treatments. This work shows the ability of diffusion tensor imaging (DTI) to evaluate the evolution of the SCI in nonhuman primates through the fraction of anisotropy (FA) analysis and the diffusion tensor tractography (DTT) calculus. The injury progression was analysed up to 3 months after the injury day by FA and DTT. The FA recovery and the DTT re-stabilization were observed in the experimental implanted subject with the polymer, in contrast with the non-implanted subject. The parameters derived from DTI are concordant with the histology and the motor functional behaviour.
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Affiliation(s)
- Axayacatl Morales-Guadarrama
- Centro Nacional de Investigación en Imagenología e Instrumentación Médica, Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City 09340, Mexico;
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City 09340, Mexico;
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Axapusco 52750, Mexico; (G.J.C.); (M.G.O.)
| | - Hermelinda Salgado-Ceballos
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, CDMX, Mexico City 06720, Mexico; (H.S.-C.); (I.G.); (S.S.-T.); (L.A.-M.)
- Centro de Investigación del Proyecto CAMINA A.C., CDMX, Mexico City 14050, Mexico;
| | - Israel Grijalva
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, CDMX, Mexico City 06720, Mexico; (H.S.-C.); (I.G.); (S.S.-T.); (L.A.-M.)
- Centro de Investigación del Proyecto CAMINA A.C., CDMX, Mexico City 14050, Mexico;
| | - Juan Morales-Corona
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City 09340, Mexico;
| | - Braulio Hernández-Godínez
- Investigación Biomédica Aplicada S.A.S. de C.V., CDMX, Mexico City 14240, Mexico; (B.H.-G.); (A.I.-C.)
| | | | - Camilo Ríos
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., CDMX, Mexico City 14269, Mexico; (C.R.); (A.D.-R.)
| | - Araceli Diaz-Ruiz
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., CDMX, Mexico City 14269, Mexico; (C.R.); (A.D.-R.)
| | - Guillermo Jesus Cruz
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Axapusco 52750, Mexico; (G.J.C.); (M.G.O.)
| | - María Guadalupe Olayo
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Axapusco 52750, Mexico; (G.J.C.); (M.G.O.)
| | - Stephanie Sánchez-Torres
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, CDMX, Mexico City 06720, Mexico; (H.S.-C.); (I.G.); (S.S.-T.); (L.A.-M.)
- Centro de Investigación del Proyecto CAMINA A.C., CDMX, Mexico City 14050, Mexico;
| | - Rodrigo Mondragón-Lozano
- Centro de Investigación del Proyecto CAMINA A.C., CDMX, Mexico City 14050, Mexico;
- Catedrático CONACyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, CDMX, Mexico City 06720, Mexico
| | - Laura Alvarez-Mejia
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, CDMX, Mexico City 06720, Mexico; (H.S.-C.); (I.G.); (S.S.-T.); (L.A.-M.)
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., CDMX, Mexico City 14269, Mexico; (C.R.); (A.D.-R.)
| | - Omar Fabela-Sánchez
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City 09340, Mexico;
- Departamento de Química Macromoléculas y Nanomateriales, Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, CDMX, Mexico City 09340, Mexico;
- Correspondence:
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5
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Uribe-Juárez O, Godínez R, Morales-Corona J, Velasco M, Olayo-Valles R, Acosta-García MC, Alvarado EJ, Miguel-Alavez L, Carrillo-González OJ, Flores-Sánchez MG, Olayo R. Application of plasma polymerized pyrrole nanoparticles to prevent or reduce de-differentiation of adult rat ventricular cardiomyocytes. J Mater Sci Mater Med 2021; 32:121. [PMID: 34499229 PMCID: PMC8429391 DOI: 10.1007/s10856-021-06595-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Cardiovascular diseases are the leading cause of death in the world, cell therapies have been shown to recover cardiac function in animal models. Biomaterials used as scaffolds can solve some of the problems that cell therapies currently have, plasma polymerized pyrrole (PPPy) is a biomaterial that has been shown to promote cell adhesion and survival. The present research aimed to study PPPy nanoparticles (PPPyN) interaction with adult rat ventricular cardiomyocytes (ARVC), to explore whether PPPyN could be employed as a nanoscaffold and develop cardiac microtissues. PPPyN with a mean diameter of 330 nm were obtained, the infrared spectrum showed that some pyrrole rings are fragmented and that some fragments of the ring can be dehydrogenated during plasma synthesis, it also showed the presence of amino groups in the structure of PPPyN. PPPyN had a significant impact on the ARVC´s shape, delaying dedifferentiation, necrosis, and apoptosis processes, moreover, the cardiomyocytes formed cell aggregates up to 1.12 mm2 with some aligned cardiomyocytes and generated fibers on its surface similar to cardiac extracellular matrix. PPPyN served as a scaffold for adult ARVC. Our results indicate that PPPyN-scaffold is a biomaterial that could have potential application in cardiac cell therapy (CCT).
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Affiliation(s)
- Omar Uribe-Juárez
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México.
| | - Rafael Godínez
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - Juan Morales-Corona
- Departamento de Física, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - Myrian Velasco
- Departamento de Neurodesarrollo y Fisiología, División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Av. Universidad 3000, Col Ciudad Universitaria, Del. Coyoacán, C. P. 04510, Ciudad de México, México
| | - Roberto Olayo-Valles
- Departamento de Física, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - M C Acosta-García
- Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - E J Alvarado
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - Luis Miguel-Alavez
- Departamento de Biología de la Reproducción, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - Oscar-J Carrillo-González
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
| | - María G Flores-Sánchez
- Facultad de Ingeniería, Vicerrectoría de Investigación, Universidad La Salle México, Benjamín Franklin 45, Col. Condesa, Del. Cuauhtémoc, C. P. 06140, Ciudad de México, México
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana, Av. San Rafael Atlixco 186, Col. Leyes de Reforma 1ra Secc., Del. Iztapalapa, C. P. 09340, Ciudad de México, México
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6
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Flores-Sánchez MG, Islas-Arteaga NC, Raya-Rivera AM, Esquiliano-Rendon DR, Morales-Corona J, Uribe-Juarez OE, Vivar-Velázquez FI, Ortiz-Vázquez GP, Olayo R. Effect of a plasma synthesized polypyrrole coverage on polylactic acid/hydroxyapatite scaffolds for bone tissue engineering. J Biomed Mater Res A 2021; 109:2199-2211. [PMID: 33904255 DOI: 10.1002/jbm.a.37205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 03/25/2021] [Accepted: 04/16/2021] [Indexed: 11/09/2022]
Abstract
Composite biomaterials are solids that contain two or more different materials, combining the properties of their components to restore or improve the function of tissues. In this study, we report the generation of electrospun matrices with osteoconductive properties and porosity using the combination of a biodegradable polyester, polylactic acid (PLA), and hydroxyapatite (HA). Additionally, we report the effects of modifying these matrices through plasma polymerization of pyrrole on the growth and osteogenic differentiation of rabbit bone marrow stem cells. Cells were isolated, seeded and cultured on biomaterials for periods between 7 and 28 days. The matrices we obtained were formed by nano and microfibers containing up to 35.7 wt% HA, presenting a variety of apparent pore sizes to allow for the passage of nutrients to bone cells. Scanning electron microscopy showed that the fibers were coated with polypyrrole doped with iodine, and MTT assay demonstrated this increased cell proliferation and significantly improved cell viability due to the adhesive properties of the polymer. Our results show that PLA/HA/Pyrrole/Iodine matrices are favorable for bone tissue engineering.
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Affiliation(s)
- María G Flores-Sánchez
- Faculty of Engineering, Department of Investigation, La Salle University México, México City, Mexico
| | - Nancy C Islas-Arteaga
- Department of Electric Engineering, Universidad Autónoma Metropolitana, México City, Mexico
| | - Atlántida M Raya-Rivera
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, México City, Mexico
| | | | - Juan Morales-Corona
- Department of Physics, Universidad Autónoma Metropolitana, México City, Mexico
| | - Omar E Uribe-Juarez
- Department of Electric Engineering, Universidad Autónoma Metropolitana, México City, Mexico
| | | | | | - Roberto Olayo
- Department of Physics, Universidad Autónoma Metropolitana, México City, Mexico
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7
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Sánchez-Torres S, Díaz-Ruíz A, Ríos C, Olayo MG, Cruz GJ, Olayo R, Morales J, Mondragón-Lozano R, Fabela-Sánchez O, Orozco-Barrios C, Coyoy-Salgado A, Orozco-Suárez S, González-Ruiz C, Álvarez-Mejía L, Morales-Guadarrama A, Buzoianu-Anguiano V, Damián-Matsumura P, Salgado-Ceballos H. Recovery of motor function after traumatic spinal cord injury by using plasma-synthesized polypyrrole/iodine application in combination with a mixed rehabilitation scheme. J Mater Sci Mater Med 2020; 31:58. [PMID: 32607849 DOI: 10.1007/s10856-020-06395-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
Traumatic spinal cord injury (TSCI) can cause paralysis and permanent disability. Rehabilitation (RB) is currently the only accepted treatment, although its beneficial effect is limited. The development of biomaterials has provided therapeutic possibilities for TSCI, where our research group previously showed that the plasma-synthesized polypyrrole/iodine (PPy/I), a biopolymer with different physicochemical characteristics than those of the PPy synthesized by conventional methods, promotes recovery of motor function after TSCI. The present study evaluated if the plasma-synthesized PPy/I applied in combination with RB could increase its beneficial effects and the mechanisms involved. Adult rats with TSCI were divided into no treatment (control); biopolymer (PPy/I); mixed RB by swimming and enriched environment (SW/EE); and combined treatment (PPy/I + SW/EE) groups. Eight weeks after TSCI, the general health of the animals that received any of the treatments was better than the control animals. Functional recovery evaluated by two scales was better and was achieved in less time with the PPy/I + SW/EE combination. All treatments significantly increased βIII-tubulin (nerve plasticity) expression, but only PPy/I increased GAP-43 (nerve regeneration) and MBP (myelination) expression when were analyzed by immunohistochemistry. The expression of GFAP (glial scar) decreased in treated groups when determined by histochemistry, while morphometric analysis showed that tissue was better preserved when PPy/I and PPy/I + SW/EE were administered. The application of PPy/I + SW/EE, promotes the preservation of nervous tissue, and the expression of molecules related to plasticity as βIII-tubulin, reduces the glial scar, improves general health and allows the recovery of motor function after TSCI. The implant of the biomaterial polypyrrole/iodine (PPy/I) synthesized by plasma (an unconventional synthesis method), in combination with a mixed rehabilitation scheme with swimming and enriched environment applied after a traumatic spinal cord injury, promotes expression of GAP-43 and βIII-tubulin (molecules related to plasticity and nerve regeneration) and reduces the expression of GFAP (molecule related to the formation of the glial scar). Both effects together allow the formation of nerve fibers, the reconnection of the spinal cord in the area of injury and the recovery of lost motor function. The figure shows the colocalization (yellow) of βIII-tubilin (red) and GAP-43 (green) in fibers crossing the epicenter of the injury (arrowheads) that reconnect the rostral and caudal ends of the injured spinal cord and allowed recovery of motor function.
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Affiliation(s)
- Stephanie Sánchez-Torres
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI. Av. Cuauhtémoc 330, Col. Doctores, México City, CP, 06720, México
- Doctorate in Biological and Health Sciences, Universidad Autónoma Metropolitana, Iztapalapa, Mexico City, CP, 09340, Mexico
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
| | - Araceli Díaz-Ruíz
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez S.S.A, Mexico city, CP, 14269, Mexico
| | - Camilo Ríos
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía, Manuel Velasco Suárez S.S.A, Mexico city, CP, 14269, Mexico
| | - María G Olayo
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares. Carretera Mexico-Toluca, km 36.5, Ocoyoacac, State of Mexico, CP, 52750, Mexico
| | - Guillermo J Cruz
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares. Carretera Mexico-Toluca, km 36.5, Ocoyoacac, State of Mexico, CP, 52750, Mexico
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana, Mexico City, CP, 09340, Mexico
| | - Juan Morales
- Departamento de Física, Universidad Autónoma Metropolitana, Mexico City, CP, 09340, Mexico
| | - Rodrigo Mondragón-Lozano
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- CONACyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Mexico City, Mexico
| | - Omar Fabela-Sánchez
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana, San Rafael Atlixco 186, 09340, Iztapalapa, CDMX, México
- Catedrático CONACyT-Centro de Investigación en Química Aplicada, Enrique Reyna H. No. 140, San José de los Cerritos, Saltillo, Coahuila, 25294, México
| | - Carlos Orozco-Barrios
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- CONACyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Mexico City, Mexico
| | - Angélica Coyoy-Salgado
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- CONACyT-Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Mexico City, Mexico
| | - Sandra Orozco-Suárez
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI. Av. Cuauhtémoc 330, Col. Doctores, México City, CP, 06720, México
| | - Cristian González-Ruiz
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- Escuela Superior de Medicina-Instituto Politécnico Nacional, Mexico City, Mexico
| | - Laura Álvarez-Mejía
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI. Av. Cuauhtémoc 330, Col. Doctores, México City, CP, 06720, México
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares. Carretera Mexico-Toluca, km 36.5, Ocoyoacac, State of Mexico, CP, 52750, Mexico
| | | | - Vinnitsa Buzoianu-Anguiano
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI. Av. Cuauhtémoc 330, Col. Doctores, México City, CP, 06720, México
| | - Pablo Damián-Matsumura
- Doctorate in Biological and Health Sciences, Universidad Autónoma Metropolitana, Iztapalapa, Mexico City, CP, 09340, Mexico
| | - Hermelinda Salgado-Ceballos
- Instituto Mexicano del Seguro Social, Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades, Centro Médico Nacional Siglo XXI. Av. Cuauhtémoc 330, Col. Doctores, México City, CP, 06720, México.
- Proyecto Camina A.C. Research Center, Mexico City, CP, 14050, Mexico.
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8
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Olayo MG, Cruz GJ, López S, Morales J, Olayo R. Conductivity and Activation Energy in Polymers Synthesized by Plasmas of Thiophene. J MEX CHEM SOC 2019. [DOI: 10.29356/jmcs.v54i1.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The electric conductivity, activation energy and morphology of polythiophene synthesized by radiofrequency resistive plasmas are studied in this work. The continuous collisions of particles in the plasma induce the polymerization of thiophene but also break some of the monomer molecules producing complex polymers with thiophene rings and aliphatic hydrocarbon segments. These multidirectional chemical reactions are more marked at longer reaction times in which the morphology of the polymers evolved from smooth surfaces, at low exposure time, to spherical particles with diameter in the 300-1000 nm interval. Between both morphologies, some bubbles are formed on the surface. The intrinsic conductivity of plasma polymers of thiophene synthesized in this way varied in the range of 10-10 to 10-8 S/m; however, the conductivity resulted very sensitive to the water content in the polymers, which produced variations of up to 5 magnitude orders. The activation energy of the intrinsic conductivity was between 0.56 and 1.41 eV, increasing with the reaction time.
Plasma, Polymerization, Polythiophene, Conductivity, Activation Energy
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Cruz Y, Muñoz E, Gomez-Pachón EY, Morales-Corona J, Olayo-Lortia J, Olayo R, Olayo-Valles R. Electrospun PCL-protein scaffolds coated by pyrrole plasma polymerization. Journal of Biomaterials Science, Polymer Edition 2019; 30:832-845. [DOI: 10.1080/09205063.2019.1603338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yeyzon Cruz
- Escuela de Ciencias Químicas, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia-UPTC. Avenida Central del Norte 39-115 Sede Central Tunja–Boyacá–Colombia
- Departamento de Física, Universidad Autónoma Metropolitana - Iztapalapa, Av. San Rafael Atlixco 186, 09340, Mexico City, Mexico
| | - Efrén Muñoz
- Escuela de Ciencias Químicas, Facultad de Ciencias, Universidad Pedagógica y Tecnológica de Colombia-UPTC. Avenida Central del Norte 39-115 Sede Central Tunja–Boyacá–Colombia
- Grupo de Investigación en desarrollo y aplicación de nuevos materiales-DANUM, Universidad Pedagógica y Tecnológica de Colombia-UPTC
| | - E. Y. Gomez-Pachón
- Escuela de Diseño Industrial, Facultad sede Duitama, Universidad Pedagógica y Tecnológica de Colombia-UPTC. Carrera18 con Calle 22, Duitama-Boyacá-Colombia
- Grupo de Investigación en desarrollo y aplicación de nuevos materiales-DANUM, Universidad Pedagógica y Tecnológica de Colombia-UPTC
| | - Juan Morales-Corona
- Departamento de Física, Universidad Autónoma Metropolitana - Iztapalapa, Av. San Rafael Atlixco 186, 09340, Mexico City, Mexico
| | - Jesús Olayo-Lortia
- Tecnológico Nacional de México- Instituto Tecnológico de Toluca, Av. Tecnológico s/n. Colonia Agrícola Bellavista, Metepec, Edo. de México, México
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana - Iztapalapa, Av. San Rafael Atlixco 186, 09340, Mexico City, Mexico
| | - Roberto Olayo-Valles
- Departamento de Física, Universidad Autónoma Metropolitana - Iztapalapa, Av. San Rafael Atlixco 186, 09340, Mexico City, Mexico
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González-Torres M, Olayo MG, Gómez LM, Morales J, Olayo R, Ramírez R, Flores FG, Mejía-Cuero MR, Cruz GJ. Chemical interactions of heparin in porous polypyrrole, an example of drug–carrier destructive interaction. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02751-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Islas-Arteaga NC, Raya Rivera A, Esquiliano Rendon DR, Morales-Corona J, Ontiveros-Nevares PG, Flores Sánchez MG, Mojica-Cardoso C, Olayo R. Electrospun scaffolds with surfaces modified by plasma for regeneration of articular cartilage tissue: a pilot study in rabbit. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1534109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Nancy C. Islas-Arteaga
- Department of Electrical Engineering, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México, City
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, México, City
| | - Atlántida Raya Rivera
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, México, City
| | | | - Juan Morales-Corona
- Department of Physics, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México, City
| | | | - María G. Flores Sánchez
- Department of Electrical Engineering, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México, City
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, México, City
| | | | - Roberto Olayo
- Department of Physics, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México, City
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Gómez LM, Olayo MG, González-Torres M, Morales J, Olayo R, Mejía-Cuero MR, Cruz GJ. Synthesis of Hybrid Aminated Polymers with Ag Sensitive to Electromagnetic Pulses, as Potential Inhibitors or Stimulators of Cell Growth in the Central Nervous System. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0946-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Perez-Tejada E, Morales-Corona J, Gomez-Quiroz L, Gutierrez-Ruiz M, Olayo R. Effect of synthesis variables of plasma synthesized polymers on growth of HepG2 cells. BIOCELL 2018. [DOI: 10.32604/biocell.2017.00041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fabela-Sánchez O, Salgado-Ceballos H, Medina-Torres L, Álvarez-Mejía L, Sánchez-Torres S, Mondragón-Lozano R, Morales-Guadarrama A, Díaz-Ruiz A, Olayo MG, Cruz GJ, Morales J, Ríos C, Olayo R. Effect of the combined treatment of albumin with plasma synthesised pyrrole polymers on motor recovery after traumatic spinal cord injury in rats. J Mater Sci Mater Med 2017; 29:13. [PMID: 29285620 DOI: 10.1007/s10856-017-6016-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 12/05/2017] [Indexed: 06/07/2023]
Abstract
Traumatic spinal cord injury (TSCI) is a health problem for which there is currently no treatment or definitive therapy. Medicine has explored therapeutic options for patients with TSCI with the aim to improve their quality of life. One alternative has been the development of biomaterials that offer neuroprotection or neuroregeneration of damaged nerve tissue. The microinjection of iodine-doped polypyrrole particles synthesised by plasma (PPPy/I) has shown neuroprotective effects that favour motor function recovery in experimental animals with TSCI. However, their ability to migrate into the tissue has led to the need to test a suspension vehicle that enables the concentration of particles at the site of injury. To achieve this, two biomaterials of PPPy/I (P1 and P2) were studied. The superficial physicochemical characterisation of the polymers was performed by infrared spectroscopy, X-ray photoelectron spectroscopy and contact angle. The rheological performance under oscillatory shear rate of suspensions containing both polymers alone and in combination with bovine serum albumin was also studied. In vivo tests were performed on animals with and without TSCI that were microinjected with particles of P1 or P2 in suspension using a solution of rat serum albumin. Exposure to the protein solutions generates a protein multilayer on the surface of the biomaterials that can drastically change the behaviour of both P1 and P2, which led to severe repercussions in the in vivo assays. The results showed that surface chemistry plays an important role in the performance and that it is possible to treat TSCI with these materials. The interaction of the surface of materials PPPy/I.1 (P1) and PPPy/I.2 (P2) with bovine serum albumin (BSA) resulted in a series of changes in the surface chemistry of both biomaterials. The contact angle study (Fig. A) showed the presence of a critical BSA concentration ([BSA]c), in which a monolayer was formed on both polymers and then a stable protein multilayer, as evidenced by the establishment of a plateau in the determination of the contact angle. In vivo tests showed that this interaction may be beneficial in the treatment of traumatic spinal cord injury (TSCI), depending on the surface characteristics with or without rat serum albumin (RSA). The TSCI + P1 and TSCI + P2 + RSA groups obtained significant differences in functional recovery compared with the control group according to the Basso, Beattie and Bresnahan scale (BBB).
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Affiliation(s)
- Omar Fabela-Sánchez
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico
- Centro de Investigación del Proyecto CAMINA A.C., 14050, Ciudad de México, Mexico
| | - Hermelinda Salgado-Ceballos
- Centro de Investigación del Proyecto CAMINA A.C., 14050, Ciudad de México, Mexico
- Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, 06720, Ciudad de México, Mexico
| | - Luis Medina-Torres
- Facultad de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Laura Álvarez-Mejía
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico
- Centro de Investigación del Proyecto CAMINA A.C., 14050, Ciudad de México, Mexico
| | - Stephany Sánchez-Torres
- Centro de Investigación del Proyecto CAMINA A.C., 14050, Ciudad de México, Mexico
- Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, 06720, Ciudad de México, Mexico
- División de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico
| | - Rodrigo Mondragón-Lozano
- Centro de Investigación del Proyecto CAMINA A.C., 14050, Ciudad de México, Mexico
- Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, 06720, Ciudad de México, Mexico
- Catedrático CONACyT- Unidad de Investigación Médica en Enfermedades Neurológicas, Hospital de Especialidades Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de México, Mexico
| | - Axayácatl Morales-Guadarrama
- Departamento de Ingeniería Eléctrica, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico
- Centro Nacional de Investigación en Imagenología e Instrumentación Médica, Universidad Autónoma Metropolitana, San Rafael Atlixco 186, Iztapalapa, Vicentina, 09340, Ciudad de México, Mexico
| | - Araceli Díaz-Ruiz
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., 14269, Ciudad de México, Mexico
| | - María-Guadalupe Olayo
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, 52750, Estado de México, Mexico
| | - Guillermo J Cruz
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, 52750, Estado de México, Mexico
| | - Juan Morales
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico
| | - Camilo Ríos
- Departamento de Neuroquímica, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez S.S.A., 14269, Ciudad de México, Mexico
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, 09340, Ciudad de México, Mexico.
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15
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Flores-Sánchez MG, Raya-Rivera AM, Esquiliano-Rendon DR, Ontiveros-Nevares PG, Islas-Arteaga NC, Morales-Corona J, Olayo R. Scaffolds of polylactic acid/hydroxyapatite coated by plasma with polypyrrole-iodine for the generation of neo-tissue–bone in vivo: Study in rabbit. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1342249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- María G. Flores-Sánchez
- Department of Electrical Engineering, Autonomous Metropolitan University, Iztapalapa Campus, Mexico City, México
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, Ciudad de México, México
| | - Atlántida M. Raya-Rivera
- Department of Tissue Engineering, Child Hospital of México Federico Gómez, Ciudad de México, México
| | | | | | - Nancy C. Islas-Arteaga
- Department of Electrical Engineering, Autonomous Metropolitan University, Iztapalapa Campus, Mexico City, México
| | - Juan Morales-Corona
- Department of Physics, Autonomous Metropolitan University, Iztapalapa Campus, Mexico City, México
| | - Roberto Olayo
- Department of Physics, Autonomous Metropolitan University, Iztapalapa Campus, Mexico City, México
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Affiliation(s)
- Gabriela Ruiz-Velasco
- Departamento de Física, Universidad Autónoma Metropolitana − Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col, Vicentina CP 09340 Mexico City Mexico
| | - Francisco Martínez-Flores
- Banco de Tejidos y Piel, CENIAQ-Instituto Nacional de Rehabilitación; Calz. México-Xochimilco 289, Col. Arenal de Guadalupe CP 14389 Mexico City Mexico
| | - Juan Morales-Corona
- Departamento de Física, Universidad Autónoma Metropolitana − Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col, Vicentina CP 09340 Mexico City Mexico
| | - Roberto Olayo-Valles
- Departamento de Física, Universidad Autónoma Metropolitana − Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col, Vicentina CP 09340 Mexico City Mexico
| | - Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana − Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col, Vicentina CP 09340 Mexico City Mexico
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Quintanilla F, Rodríguez J, Vargas S, Solís SG, Olayo R, Hnatchuk N, Brostow W, Chen I, González M. Membranes of chitosan grafted onto poly(3-hydroxybutyrate): new insights into their applicability as scaffolds. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/14328917.2015.1109198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- F. Quintanilla
- Department of pharmaco chemical, University of the Valley of Mexico (UVM), Boulevard Villas del Mesón 1000, Juriquilla, Santiago de Querétaro, Querétaro 76320, Mexico
| | - J.R. Rodríguez
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
| | - S. Vargas
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
| | - S. G. Solís
- Department of analytical chemistry, Research Center for Applied Chemistry (CIQA), Blvd. Enrique Reyna Hermosillo # 140 Col, San José de los Cerritos Saltillo Coahuila 25294, Mexico
| | - R. Olayo
- Department of Physics, Autonomous Metropolitan University (UAM), Av. San Rafael Atlixco N° 186, Col. Vicentina, Del. Iztapalapa, México, DF 09340, Mexico
| | - N. Hnatchuk
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - W. Brostow
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - Ikang Chen
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - M. González
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
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Alvarez-Mejia L, Morales J, Cruz GJ, Olayo MG, Olayo R, Díaz-Ruíz A, Ríos C, Mondragón-Lozano R, Sánchez-Torres S, Morales-Guadarrama A, Fabela-Sánchez O, Salgado-Ceballos H. Functional recovery in spinal cord injured rats using polypyrrole/iodine implants and treadmill training. J Mater Sci Mater Med 2015; 26:209. [PMID: 26169188 DOI: 10.1007/s10856-015-5541-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/03/2015] [Indexed: 06/04/2023]
Abstract
Currently, there is no universally accepted treatment for traumatic spinal cord injury (TSCI), a pathology that can cause paraplegia or quadriplegia. Due to the complexity of TSCI, more than one therapeutic strategy may be necessary to regain lost functions. Therefore, the present study proposes the use of implants of mesoparticles (MPs) of polypyrrole/iodine (PPy/I) synthesized by plasma for neuroprotection promotion and functional recovery in combination with treadmill training (TT) for neuroplasticity promotion and maintenance of muscle tone. PPy/I films were synthesized by plasma and pulverized to obtain MPs. Rats with a TSCI produced by the NYU impactor were divided into four groups: Vehicle (saline solution); MPs (PPy/I implant); Vehicle-TT (saline solution + TT); and MPs-TT (PPy/I implant + TT). The vehicle or MPs (30 μL) were injected into the lesion site 48 h after a TSCI. Four days later, TT was carried out 5 days a week for 2 months. Functional recovery was evaluated weekly using the BBB motor scale for 9 weeks and tissue protection using histological and morphometric analysis thereafter. Although the MPs of PPy/I increased nerve tissue preservation (P = 0.03) and promoted functional recovery (P = 0.015), combination with TT did not produce better neuroprotection, but significantly improved functional results (P = 0.000) when comparing with the vehicle group. So, use these therapeutic strategies by separately could stimulate specific mechanisms of neuroprotection and neuroregeneration, but when using together they could mainly potentiate different mechanisms of neuronal plasticity in the preserved spinal cord tissue after a TSCI and produce a significant functional recovery. The implant of mesoparticles of polypyrrole/iodine into the injured spinal cord displayed good integration into the nervous tissue without a response of rejection, as well as an increased in the amount of preserved tissue and a better functional recovery than the group without transplant after a traumatic spinal cord injury by contusion in rats. The relevance of the present results is that polypyrrole/iodine implants were synthesized by plasma instead by conventional chemical or electrochemical methods. Synthesis by plasma modifies physicochemical properties of polypyrrole/iodine implants, which can be responsible of the histological response and functional results. Furthermore, no additional molecules or trophic factors or cells were added to the implant for obtain such results. Even more, when the implant was used together with physical rehabilitation, better functional recovery was obtained than that observed when these strategies were used by separately.
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Affiliation(s)
- Laura Alvarez-Mejia
- Department of Electric Engineering, Universidad Autónoma Metropolitana Iztapalapa, Apdo. Postal 55-534, CP 09340, Mexico, DF, Mexico
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Vasquez-Ortega M, Ortega M, Morales J, Olayo MG, Cruz GJ, Olayo R. Core-shell polypyrrole nanoparticles obtained by atmospheric pressure plasma polymerization. POLYM INT 2014. [DOI: 10.1002/pi.4756] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Miguelina Vasquez-Ortega
- Departamento de Ingeniería Eléctrica, Sección de Electrónica del Estado Sólido; Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional; Av. Instituto Politécnico Nacional 2508, Col San Pedro Zacatenco CP 07360 DF México
| | - Mauricio Ortega
- Departamento de Ingeniería Eléctrica, Sección de Electrónica del Estado Sólido; Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional; Av. Instituto Politécnico Nacional 2508, Col San Pedro Zacatenco CP 07360 DF México
| | - Juan Morales
- Departamento de Física, Área de Polímeros; Universidad Autónoma Metropolitana, Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col Vicentina CP 09340 DF México
| | - M Guadalupe Olayo
- Departamento de Física; Instituto Nacional de Investigaciones Nucleares; Km. 36.5 Carretera México-Toluca, Ocoyoacac, Edo. Mex CP 52750 México
| | - Guillermo J Cruz
- Departamento de Física; Instituto Nacional de Investigaciones Nucleares; Km. 36.5 Carretera México-Toluca, Ocoyoacac, Edo. Mex CP 52750 México
| | - Roberto Olayo
- Departamento de Física, Área de Polímeros; Universidad Autónoma Metropolitana, Unidad Iztapalapa; Av. San Rafael Atlixco 186, Col Vicentina CP 09340 DF México
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Zuñiga-Aguilar E, Olayo R, Ramírez-Fernández O, Morales J, Godínez R. Nerve cells culture from lumbar spinal cord on surfaces modified by plasma pyrrole polymerization. J Biomater Sci Polym Ed 2014; 25:729-47. [PMID: 24650203 DOI: 10.1080/09205063.2014.898124] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Currently, there are several techniques for modified cell culture surfaces under research to improve cell growth and adhesion. Recently, different methods have been used for surface coating, using biomolecules that enhance cell attachment and growth of nerve cells from spinal cord, such as the use of Poly-DL-Ornithine/Laminin. Plasma-polymerized pyrrole (PPy)-treated surfaces have showed improvement on surfaces biocompatibility with the cells in culture since they do not interfere with any of the biological cell functions. In the present work, we present a novel mouse nerve cell culture technique, using PPy-treated cell culture surfaces. A comparative study of cell survival using Poly-DL-Ornithine/Laminin-treated surfaces was performed. Our results of cell survival when compared with data already reported by other investigators, show that cells cultured on the PPy-modified surface increased survival up to 21 days when compared with Poly-DL-Ornithine/Laminin-coated culture, where 8 days cell survival was obtained. There were electrical and morphological differences in the nerve cells grown in the different surfaces. By comparing the peak ion currents of Poly-DL-Ornithine/Laminin-seeded cells for 8 days with cells grown for 21 days on PPy, an increase of 516% in the Na(+) current and 127% in K(+) currents in cells seeded on PPy were observed. Immunofluorescence techniques showed the presence of cell synapses and culture viability after 21 days. Our results then showed that PPy-modified surfaces are an alternative culture method that increases nerve cells survival from lumbar spinal cord cell culture by preserving its electrical and morphological features.
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Affiliation(s)
- E Zuñiga-Aguilar
- a Department of Electrical Engineer , Division of Biomedical Engineer, Universidad Autonoma Metropolitana , Unidad Iztapalapa , A.P. 55-534 , Iztapalapa , México, D.F., Mexico
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Bushaija E, Sunday FX, Asingizwe D, Olayo R, Abong’o B. Factors that Hinder Parents from the Communicating of Sexual Matters with Adolescents in Rwanda. ACTA ACUST UNITED AC 2013. [DOI: 10.4314/rjhs.v2i2.2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Morales-Guadarrama A, Mejía-González I, Hernández-Godínez B, Ibáñez-Contreras A, Reyes-Pantoja SA, Olayo R. DTI tractography and MRI in chronic cerebral ischemia in rhesus monkey (Macaca mulatta) in vivo. Arq Neuropsiquiatr 2013; 71:134. [PMID: 23392331 DOI: 10.1590/s0004-282x2013000200019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cruz GJ, Mondragón-Lozano R, Diaz-Ruiz A, Manjarrez J, Olayo R, Salgado-Ceballos H, Olayo MG, Morales J, Alvarez-Mejía L, Morales A, Méndez-Armenta M, Plascencia N, del Carmen Fernandez M, Ríos C. Plasma polypyrrole implants recover motor function in rats after spinal cord transection. J Mater Sci Mater Med 2012; 23:2583-2592. [PMID: 22798167 DOI: 10.1007/s10856-012-4715-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 06/26/2012] [Indexed: 06/01/2023]
Abstract
We studied the use of three biocompatible materials obtained by plasma polymerization of pyrrole (PPy), pyrrole doped with iodine (PPy/I) and a copolymer formed with pyrrole and polyethylene glycol (PPy/PEG), implanted, separately, after a complete spinal cord transection in rats. Motor function assessed with the BBB scale and somatosensory evoked potentials (SEPs) in the implanted rats were studied. Results showed that the highest motor recovery was obtained in rats with PPy/I implants. They also showed a significant reduction in the latency of SEPs. Histological analyses showed no signs of implant rejection; on the contrary, implants based on PPy improved the SEPs conduction and motor function after lesion.
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Affiliation(s)
- Guillermo J Cruz
- Departamento de Física, Instituto Nacional de Investigaciones Nucleares, Carr. México-Toluca, km 36.5, CP 52750 Ocoyoacac, Edo. Mex., Mexico
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Morales-Corona J, López-Barrera JA, Avila-Ortega A, Cruz GJ, Olayo MG, Ortega-López M, Vasquez-Ortega M, Vazquez H, Olayo R. Luminescent polydibenzothiophene thin film obtained by glow discharge method. J Appl Polym Sci 2012. [DOI: 10.1002/app.34585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kaseje D, Olayo R, Musita C, Oindo C, Wafula C, Muga R. Evidence-based dialogue with communities for district health systems' performance improvement. Glob Public Health 2010; 5:595-610. [DOI: 10.1080/17441690903418969] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gomez LM, Morales P, Cruz GJ, Olayo MG, Palacios C, Morales J, Olayo R. Plasma Copolymerization of Ethylene Glycol and Allylamine. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/masy.200950902] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Alonso D, Gimeno M, Olayo R, Vázquez-Torres H, Sepúlveda-Sánchez JD, Shirai K. Cross-linking chitosan into UV-irradiated cellulose fibers for the preparation of antimicrobial-finished textiles. Carbohydr Polym 2009. [DOI: 10.1016/j.carbpol.2009.01.027] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Romero-Guzmán ME, Romo-Uribe A, Ovalle-García E, Olayo R, Cruz-Ramos CA. Microstructure and dynamic mechanical analysis of extruded layered silicate PVC nanocomposites. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.1098] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Olayo R, Ríos C, Salgado-Ceballos H, Cruz GJ, Morales J, Olayo MG, Alcaraz-Zubeldia M, Alvarez AL, Mondragon R, Morales A, Diaz-Ruiz A. Tissue spinal cord response in rats after implants of polypyrrole and polyethylene glycol obtained by plasma. J Mater Sci Mater Med 2008; 19:817-26. [PMID: 17665119 DOI: 10.1007/s10856-007-3080-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2006] [Accepted: 04/05/2007] [Indexed: 05/16/2023]
Abstract
Most of the biomaterials used nowadays for the reconstruction of the spinal cord (SC) tissue after an injury, tested in animals, have obtained modest results. This work presents a study about the compatibility of two novel, non-biodegradable, semi-conductive materials, obtained by plasma polymerization: iodine-doped pyrrole (PPy/I) and pyrrole-polyethylene glycol (PPy/PEG). Both polymers, separately, were implanted in the SC tissue of rats after a transection. Prior to implantation, the elemental composition and the physico-chemical properties of polymers were studied by electron scanning microscopy, IR Spectroscopy and thermogravimetric analysis. We used adult female Long Evans rats, subjected to SC transection. Animals were randomized to be allocated in one of the treatment groups and were killed four weeks after the lesion for histology study. Results showed that both implants were integrated to the SC tissue, as inflammatory and gliotic responses, similar to those observed in the control group, and rejection of the implant, were not evident. Moreover, the immediate effect of PPy/I or PPy/PEG in the injured SC prevented secondary tissue destruction, as compared to non-implanted control animals. In conclusion, implants of semi-conductive polymers were well-tolerated and integrated favorably to SC tissue after transection.
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Affiliation(s)
- Roberto Olayo
- Departamento de Física, Universidad Autónoma Metropolitana Iztapalapa, Mexico, Mexico
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Affiliation(s)
- F. Hernández‐Sánchez
- a Centro de Investigación Científica de Yucatán , Apartado Postal 86, 97200 , Cordemex , Yucatán , México
| | - A. Manzur
- b Departamento de Física , Universidad Autónoma Metropolitana‐Iztapalapa , México, D.F
| | - R. Olayo
- b Departamento de Física , Universidad Autónoma Metropolitana‐Iztapalapa , México, D.F
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López-Barrera JA, Avila-Ortega A, Morales J, Cervantes J, Olayo R. Surface modification of quarry stone by hexamethyldisiloxane plasma treatment. Appl Organomet Chem 2007. [DOI: 10.1002/aoc.1304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lopez-Barrera JA, Peña-Calva A, Olayo R, Gómez J, Cuervo-López F. Determination of denitrifying sludge settleability using contact angle measurements. Environ Technol 2006; 27:1241-7. [PMID: 17203606 DOI: 10.1080/09593332708618737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The adaptation of the technique for measuring the contact angle (CA) in order to follow the changes of sludge settleability of a denitrifying sludge surface is described. Denitrifying sludge was continuously fed into an upflow anaerobic sludge blanket (UASB) reactor with acetate and nitrate. The loss of settleability in the sludge was induced by decreasing the hydraulic residence time (HRT) from 1 d to 0.125 d. CA was measured with air and nitrogen bubbles. A comparison between sludge volume index (SVI) and the CA and their correlation with sludge settleability was carried out. Results showed that CA method had a high correlation with sludge settleability. Moreover the CA method showed to be simpler and less time consuming than the SVI method.
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Affiliation(s)
- J A Lopez-Barrera
- Universidad Autónoma Metropolitana-Iztapalapa, Departamento de Física, Av. San Rafael Atlixco 186, col. Vicentina C. P. 09340, Mexico
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Morales J, Olayo MG, Cruz GJ, Herrera-Franco P, Olayo R. Plasma modification of cellulose fibers for composite materials. J Appl Polym Sci 2006. [DOI: 10.1002/app.24085] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cruz GJ, Palacios JC, Olayo MG, Morales J, Olayo R. Conductivity of layer and matrix polyaniline-silver-copper composites by plasma. J Appl Polym Sci 2004. [DOI: 10.1002/app.20545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Dereszewska A, Olayo R, Cardoso J. Synthesis and thermal degradation of poly(n-butylisocyanate) modified by 1,3-propanesultone. J Appl Polym Sci 2003. [DOI: 10.1002/app.13077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Plascencia-Jatomea M, Viniegra G, Olayo R, Castillo-Ortega MM, Shirai K. Effect of Chitosan and Temperature on Spore Germination ofAspergillus niger. Macromol Biosci 2003. [DOI: 10.1002/mabi.200350024] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Olayo MG, Morales J, Cruz GJ, Barocio SR, Olayo R. Numerical and experimental analysis of the plasma in the synthesis of polyaniline. ACTA ACUST UNITED AC 2003. [DOI: 10.1002/polb.10493] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Castillo-Ortega MM, Castillo-Castro TD, Encinas JC, Perez-Tello M, De Paoli MA, Olayo R. Electrically conducting polyaniline-PBMA composite films obtained by extrusion. J Appl Polym Sci 2003. [DOI: 10.1002/app.12176] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Morales J, Olayo MG, Cruz GJ, Olayo R. Synthesis by plasma and characterization of bilayer aniline-pyrrole thin films doped with iodine. ACTA ACUST UNITED AC 2002. [DOI: 10.1002/polb.10254] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Herrera-Ordóñez J, Olayo R. Methyl methacrylate emulsion polymerization at low monomer concentration: Kinetic modeling of nucleation, particle size distribution, and rate of polymerization. ACTA ACUST UNITED AC 2001. [DOI: 10.1002/pola.1231] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Castillo-Ortega MM, Encinas J, Rodríguez DE, Olayo R. Preparation and characterization of electroconductive polypyrrole-thermoplastic composites. J Appl Polym Sci 2001. [DOI: 10.1002/app.1578] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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