66) Alvarez C., Capanema E., Rojas O.J., Ganán P., Desarrollo de tableros aglomerados auto-enlazados a partir de la vena central de la hoja de plátano Colombia, Prospectiva, 2009, 7, 69-74.

65) Hu G., Heitmann J.A., Rojas O.J., In-situ monitoring of cellulase activity by microgravimetry with a quartz crystal microbalance, Journal of Physical Chemistry B, 2009, 113, 14761-14768. (DOI: 10.1021/jp907155v)

64) Hu G., Heitmann J.A., Rojas O.J., Quantification of cellulase activity using the quartz crystal microbalance technique, Analytical Chemistry, 2009, 81, 1872-1880. (DOI: 10.1021/ac802318t)

63) Kim J., Montero G., Habibi Y., Hinestroza J.P., Genzer J., Argyropoulos D.S., Rojas O.J., Dispersion of cellulose crystallites by nonionic surfactants in a hydrophobic polymer matrix, Polymer Engineering and Science, 2009, 49, 2054-2061. (DOI: 10.1002/pen.21417)

62) Rojas O.J., Montero G., Habibi Y., Electrospun nanocomposites from polystyrene loaded with cellulose nanowhiskers, Journal Applied Polymer Science, 2009, 113, 927-935. (DOI: 10.1002/app.30011)

61) Silva D.J., Rojas O.J., Hubbe M.A, Park S.W., Yamaguchi T., Song J., Polyampholytes: their Use in papermaking and their solution and adsorption behaviors, O’Papel, 2009, 70, 40-50.

60) Song J., Liang J., Liu X., Krause W.E., Hinestroza J.P., Rojas O.J., Development and characterization of thin polymer films relevant to fiber processing, Thin Solid Films, 2009, 517, 4348-4354. (DOI: 10.1016/j.tsf.2009.03.015)

59) Spence K., Venditti R.A., Rojas O.J., Sugar surfactants in paper recycling, Nordic Pulp and Paper Research Journal, 2009, 24, 107-111. (DOI: 10.3183/NPPRJ-2009-24-01-p107-111)

58) Wu N., Hubbe M.A., Rojas O.J., Park S., Permeation of polyelectrolytes and other solutes into the pore spaces of water-swollen cellulose: A review, BioResources, 2009, 4(3), 1222-1262.

57) Yamaguchi T., Hubbe M.A., Rojas O.J., Investigation of adsorption behaviors of polyampholytes, Kami Parupu Kenkyu Happyokai Koen Yoshishu, 2009, 76, 6-9.

56) Zoppe J.O., Peresin M.S., Habibi Y., Venditti R.A., Rojas O.J., Reinforcing poly(ε-caprolactone) nanofibers with cellulose nanocrystals, ACS Applied Masterials & Interfaces, 2009, 1, 1996-2004. (DOI: 10.1021/am9003705)

55) Ahola S., Turon X., Österberg M., Laine J., Rojas O.J., Enzymatic hydrolysis of native cellulose nanofibril and other cellulose model films-Effect of surface structure, Langmuir, 2008, 24, 11592-11599. (DOI: 10.1021/la801550j)

54) Hu G., Heitmann J.A., Rojas O.J., Feedstock pretreatment strategies for producing ethanol from wood, bark, and forest residues, BioResources, 2008, 3, 270-294.

53) Hubbe M.A., Rojas O.J., Colloidal stability and aggregation of lignocellulosic materials in aqueous suspension: A review, BioResources, 2008, 3, 1419-1491.

52) Hubbe M.A., Rojas O.J., Lucia L.A., Sain M., Cellulosic nanocomposites: A review, BioResources, 2008, 3, 929-980.

51) Turon X., Rojas O.J., Deinhammer R.S., Enzymatic kinetics of cellulose hydrolysis: A QCM-D study, Langmuir, 2008, 24, 3880-3887. (DOI: 10.1021/la7032753)

50) Bullon J., Rennola L., Salazar F., Hoeger M., Cardenas A., Rojas O.J., Water treatment in papermaking white water loops using membrane separation techniques, Revista Técnica de la Facultad de Ingeniería Universidad del Zulia, 2007, 30, 90-97.

49) Hubbe M.A., Venditti R.A., Rojas O.J., What happens to cellulosic fibers during papermaking and recycling? A review, BioResources, 2007, 2, 739-788.

48) Hubbe M.A., Rojas O.J., Lee S.Y., Park S., Wang Y., Distinctive electrokinetic behavior of nanoporous silica particles treated with cationic polyelectrolyte, Colloids & Surfaces A., 2007, 292, 271-278. (DOI: 10.1016/j.colsurfa.2006.06.034)

47) Hubbe M.A., Rojas O.J., Sulić N., Sezaki T., Unique behaviour of polyampholytes as dry-strength additives, Appita: Technology, Innovation, Manufacturing, Environment, 2007, 60, 106-111.

46) Hubbe M.A., Rojas O.J., Lucia L.A., Jung T., Consequences of the nanoporosity of cellulosic fibers on their streaming potential and their interactions with cationic polyelectrolytes, Cellulose, 2007, 14, 655–671. (DOI: 10.1007/s10570-006-9098-4)

45) Lucia L.A., Rojas O.J., Fiber nanotechnology: A new platform for ‘‘green’’ research and technological innovations, Cellulose, 2007, 14, 539-542. (DOI: 10.1007/s10570-007-9177-1)

44) Wang Y., Hubbe M.A., Rojas O.J., Argyropoulos D.S., Wang X., Sezaki T., Charge and the dry-Strength performance of polyampholytes. Part 2. Colloidal effects, Colloids and Surfaces A., 2007, 301, 23-32. (DOI: 10.1016/j.colsurfa.2006.11.053)

43) Wang Y., Hubbe M.A., Rojas O.J., Argyropoulos D.S., Wang X., Sezaki T., Charge and the dry-strength performance of polyampholytes. Part 3. Streaming potential analysis, Colloids and Surfaces A., 2007, 301, 33-40. (DOI: 10.1016/j.colsurfa.2006.11.052)

42) Argyropoulos D.S., Li H., Gaspar A.R., Smith K., Lucia L.A., Rojas O.J., Quantitative 31P NMR detection of oxygen-centered and carbon-centered radical species, Bioorganic & Medicinal Chemistry, 2006, 14, 4017-4028. (DOI: 10.1016/j.bmc.2006.02.009)

41) Argyropoulos D.S., Gaspar A., Lucia L., Rojas O.J., Supercritical CO2 oxidation of lignin, Chimica e l’Industria, 2006, 88, 74-79.

40) Claesson P.M., Kjellin M., Rojas O.J., Stubenrauch C., Short-range interactions between non-ionic surfactant layers, Physical Chemistry Chemical Physics, 2006, 8, 5501-5514. (DOI: 10.1039/b610295f) (Invited Article)

39) Hubbe M.A., Rojas O.J., Venditti R.A., Control of tacky deposits on paper machines-A review, Nordic Pulp and Paper Research Journal, 2006, 21, 154-171. (DOI: 10.3183/NPPRJ-2006-21-02-p154-171)

38) Jhon Y.K., Bhat R.R., Jeong C., Rojas O.J., Genzer J., Salt-induced depression of lower critical solution temperature in surface-grafted neutral thermoresponsive polymer. Macromolecular Rapid Communications, 2006, 27, 697-701. (DOI: 10.1002/marc.200600031)

37) Rojas O.J., Song J., Bullón J., Argyropoulos D.S., Lignin separation from kraft clack liquors by tangential ultrafiltration, Chimica e l’Industria, 2006, 88, 88-95.

36) Song J., Wang Y., Hubbe M.A., Rojas O.J., Sulić N., Sezaki T., Charge and the dry-strength performance of polyampholytes. Part 1. Handsheets and bulk viscosity, Journal of Pulp and Paper Science, 2006, 32, 156-162.

35) Tolosa L.I., Rodríguez-Malaver A.J., González A.M., Rojas O.J., Effect of Fenton’s reagent on O/W emulsions stabilized by black liquor. Journal of Colloid and Interface Science, 2006, 294, 182-186. (DOI: 10.1016/j.jcis.2005.06.092)

34) Wang Y., Hubbe M.A., Sezaki T., Wang X., Rojas O.J., Argyropoulos D.S., The role of polyampholyte charge density on its interactions with cellulose, Nordic Pulp and paper Research Journal, 2006, 21, 638-645. (DOI: 10.3183/NPPRJ-2006-21-05-p638-645)

33) Escalante M., Rodríguez-Malaver A. J., Araujo E., González A.M., Rojas O.J., Peñaloza N., Bullón J., Effect of surfactants on Fenton’s reagent-mediated degradation of Kraft black liquor, Journal Environmental Biology, 2005, 26, 709-718.

32) Hubbe M.A., Rojas O.J., The paradox in papermaking. Chemical Engineering Education, 2005, 39, 146-155.

31) Rojas O.J., Stubenrauch C., Schlarmann J., Claesson P.M., Interactions between non-polar surfaces coated with the non-ionic surfactant n-dodecyl-b-D-maltoside b-C12G2, Langmuir, 2005, 21, 11836-11843. (DOI: 10.1021/la051938e)

30) Rojas O.J., Neuman R.D., Claesson P.M., Viscoelastic properties of isomeric alkylglucoside surfactants studied by surface light scattering, Journal of Physical Chemistry B, 2005, 109, 22440-22448. (DOI: 10.1021/jp054132w)

29) Vangeyte P., Leyh B., Rojas O.J., Claesson P.M., Heinrich M., Auvray L., Willet N., De Clercq C., Jérôme R., Adsorption of poly(ethylene oxide)-b-poly(a-caprolactone) copolymers at the silica-water interface, Langmuir, 2005, 21, 2930-2940. (DOI: 10.1021/la047425+)

28) Chen J., Hubbe M., Heitmann J.A., Argyropoulos D.S., Rojas O.J., Dependency of polyelectrolyte complex stoichiometry on the order of addition. 2. Aluminum chloride and poly-vinylsulfate, Colloids and Surfaces A., 2004, 246, 71-79. (DOI: 10.1016/j.colsurfa.2004.07.021)

27) Rojas O.J., Surfactantes no destintamento do paper (Surfactants in paper deinking), O’ Papel, 2004, 65, 62.

26) Rojas O.J., Hubbe M., The dispersion science of papermaking, Journal of Dispersion Science and Technology, 2004, 25, 713-732. (DOI: 10.3139/113.100221) (Invited Review)

25) Rojas O.J., Claesson P.M., Berglund K.D., Tilton R.D., Coadsorption and surface forces for selective surfaces in contact with aqueous mixtures of oppositely charged surfactants and low charge density polyelectrolytes, Langmuir, 2004, 20, 3221-3230. (DOI: 10.1021/la035752w)

24) Stubenrauch C., Schlarmann J., Rojas O.J., Claesson P.M., Comparison between interaction forces at air/liquid and solid/liquid interfaces in the presence of non-ionic surfactants, Tenside, Surfactants, Detergents, 2004, 41, 174-179. (DOI: 10.3139/113.100221)

23) Stubenrauch C., Rojas O.J., Schlarmann J., Claesson P.M., Interactions between nonpolar surfaces coated with the nonionic surfactant hexaoxyethylene dodecyl ether C12E6 and the origin of surface charges at the air/water interface, Langmuir, 2004, 20, 4977-4988. (DOI: 10.1021/la0304060)

22) Ysambertt F., Bauza R., Rojas O.J., Berrio N., Márquez N., Salager J.L., Analytical interferences associated with the study of molecular weight distribution in organic phases of lignin wastes, Multiciencias, 2004, 4, 7-15. (Invited Article)

21) Claesson P.M., Dedinaite A., Rojas O.J., Polyelectrolytes as adhesion modifiers, Advances in Colloid and Interface Science, 2003, 104, 53-74. (DOI: 10.1016/S0001-8686(03)00036-8)

20) Lara M.A., Rodríguez-Malaver A.J., Rojas O.J., Holmquist O., González A.M., Bullón J., Peñaloza N., Araujo E., Black liquor lignin biodegradation by trametes elegans. Biodeterioration and Biodegradation, 2003, 52, 167-173. (DOI: 10.1016/S0964-8305(03)00055-6)

19) Tyrode E., Pizzino A., Rojas O.J., Foamability and foam stability at high pressures and temperatures. I. Instrument validation, Review of Scientific Instruments, 2003, 74, 2925-2932. (DOI: 10.1063/1.1569403)

18) Araujo E., Rodriguez-Malaver A.J., Gonzalez A.M., Rojas O.J., Peñaloza N., Bullon J., Lara M.A., Dmitrieva N., Fenton’s reagent mediated degradation of residual kraft black liquor. Applied Biochemistry and Biotechnology, 2002, 97(2), 91-103. (DOI: 10.1385/ABAB:97:2:091)

17) Bendito A.T., Rojas O.J., Valecillos M.A., Lung surfactants surface activity, Ciencia, 2002, 10(3), 300-314.

16) Rojas O.J., Macakova L., Blomberg E., Emmert A., Claesson P.M., Fluorosurfactant self-assembly at solid/liquid interfaces, Langmuir, 2002, 18(21), 8085-8095. (DOI: 10.1021/la025989c)

15) Rojas O.J., Ernstsson M., Neuman R.D., Claesson P.M., Effect of polyelectrolyte charge density on the adsorption and desorption behavior on mica. Langmuir, 2002, 18(5), 1604-1612. (DOI: 10.1021/la0155698)

14) Rojas O.J., Neuman R.D., Claesson P.M. Desorption of low-charge-density polyelectrolyte adlayers in aqueous sodium n-dodecyl sulfate solution. Journal of Colloid and Interface Science, 2001, 237, 104-111. (DOI: 10.1006/jcis.2001.7444)

13) Rojas O.J., Ernstsson M., Neuman R.D., Claesson P.M., X-Ray photoelectron spectroscopy in the study of polyelectrolyte adsorption on mica and cellulose, Journal of Physical Chemistry B, 2000, 104(43), 10032-10042. (DOI: 10.1021/jp001674z)

12) Rojas O.J., Claesson P.M., Neuman R.D., Adsorción de Polielectrolitos de Baja Densidad de Carga sobre Substrato Sólidos y Fuerzas de Interacción Superficial. Ciencia e Ingeniería, 2000, 21(2), 36-42.