{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T04:59:10Z","timestamp":1787029150758,"version":"build-2736575974"},"reference-count":59,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,9,12]],"date-time":"2020-09-12T00:00:00Z","timestamp":1599868800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004488","name":"Croatian Science Foundation","doi-asserted-by":"publisher","award":["UIP-2017-05-7337 \u201cThe impact of polymers on the radiolytic synthesis of magnetic nanoparticles\u201d (POLRADNANOP)"],"award-info":[{"award-number":["UIP-2017-05-7337 \u201cThe impact of polymers on the radiolytic synthesis of magnetic nanoparticles\u201d (POLRADNANOP)"]}],"id":[{"id":"10.13039\/501100004488","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Magnetic polymer gels are a new promising class of nanocomposite gels. In this work, magnetic PEO\/iron oxide nanocomposite hydrogels were synthesized using the one-step \u03b3-irradiation method starting from poly(ethylene oxide) (PEO) and iron(III) precursor alkaline aqueous suspensions followed by simultaneous crosslinking of PEO chains and reduction of Fe(III) precursor. \u03b3-irradiation dose and concentrations of Fe3+, 2-propanol and PEO in the initial suspensions were varied and optimized. With 2-propanol and at high doses magnetic gels with embedded magnetite nanoparticles were obtained, as confirmed by XRD, SEM and M\u00f6ssbauer spectrometry. The quantitative determination of \u03b3-irradiation generated Fe2+ was performed using the 1,10-phenanthroline method. The maximal Fe2+ molar fraction of 0.55 was achieved at 300 kGy, pH = 12 and initial 5% of Fe3+. The DSC and rheological measurements confirmed the formation of a well-structured network. The thermal and rheological properties of gels depended on the dose, PEO concentration and initial Fe3+ content (amount of nanoparticles synthesized inside gels). More amorphous and stronger gels were formed at higher dose and higher nanoparticle content. The properties of synthesized gels were determined by the presence of magnetic iron oxide nanoparticles, which acted as reinforcing agents and additional crosslinkers of PEO chains thus facilitating the one-step gel formation.<\/jats:p>","DOI":"10.3390\/nano10091823","type":"journal-article","created":{"date-parts":[[2020,9,13]],"date-time":"2020-09-13T21:11:32Z","timestamp":1600031492000},"page":"1823","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Rheological, Microstructural and Thermal Properties of Magnetic Poly(Ethylene Oxide)\/Iron Oxide Nanocomposite Hydrogels Synthesized Using a One-Step Gamma-Irradiation Method"],"prefix":"10.3390","volume":"10","author":[{"given":"Ivan","family":"Mari\u0107","sequence":"first","affiliation":[{"name":"Radiation Chemistry and Dosimetry Laboratory, Division of Materials Chemistry, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1455-9484","authenticated-orcid":false,"given":"Nata\u0161a","family":"\u0160ijakovi\u0107 Vuji\u010di\u0107","sequence":"additional","affiliation":[{"name":"Laboratory for Supramolecular Chemistry, Division of Organic Chemistry and Biochemistry, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"An\u0111ela","family":"Pustak","sequence":"additional","affiliation":[{"name":"Radiation Chemistry and Dosimetry Laboratory, Division of Materials Chemistry, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marijan","family":"Goti\u0107","sequence":"additional","affiliation":[{"name":"Laboratory for Molecular Physics and Synthesis of New Materials, Division of Materials Physics, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Goran","family":"\u0160tefani\u0107","sequence":"additional","affiliation":[{"name":"Laboratory for Molecular Physics and Synthesis of New Materials, Division of Materials Physics, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7309-8633","authenticated-orcid":false,"given":"Jean-Marc","family":"Gren\u00e8che","sequence":"additional","affiliation":[{"name":"Institut des Mol\u00e9cules et Mat\u00e9riaux du Mans (IMMM UMR CNRS 6283), Le Mans Universit\u00e9, Avenue Olivier Messiaen, F-72085 Le Mans CEDEX 9, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Goran","family":"Dra\u017ei\u0107","sequence":"additional","affiliation":[{"name":"Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tanja","family":"Jurkin","sequence":"additional","affiliation":[{"name":"Radiation Chemistry and Dosimetry Laboratory, Division of Materials Chemistry, Ru\u0111er Bo\u0161kovi\u0107 Institute, Bijeni\u010dka Cesta 54, 10000 Zagreb, Croatia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,9,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Blyakhman, F.A., Makarova, B.E., Fadeyev, F.A., Lugovets, D.V., Safronov, A.P., Shabadrov, P.A., Shklyar, T.F., Melnikov, G.Y., Orue, I., and Kurlyandskaya, G.V. (2019). The contribution of magnetic nanoparticles to ferrogel biophysical properties. Nanomaterials, 9.","DOI":"10.3390\/nano9020232"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"3624","DOI":"10.1016\/j.rinp.2017.09.042","article-title":"Polyacrylamide ferrogels with embedded maghemite nanoparticles for biomedical engineering","volume":"7","author":"Blyakhman","year":"2017","journal-title":"Results Phys."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"5637","DOI":"10.2147\/IJN.S153758","article-title":"Nanoparticles in tissue engineering: Applications, challenges and prospects","volume":"13","author":"Hasan","year":"2018","journal-title":"Int. J. Nanomed."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"110912","DOI":"10.1016\/j.colsurfb.2020.110912","article-title":"Poly(2-oxazoline)-based magnetic hydrogels: Synthesis, performance and cytotoxicity","volume":"190","author":"Cvek","year":"2020","journal-title":"Colloid Surf. B Biointerfaces"},{"key":"ref_5","first-page":"1","article-title":"Magnetic hydrogels and their potential biomedical applications","volume":"23","author":"Li","year":"2012","journal-title":"Adv. Funct. Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"952","DOI":"10.1088\/0964-1726\/15\/4\/008","article-title":"The mechanical behavior of smart magnet-hydrogel composites","volume":"15","author":"Ramanujan","year":"2006","journal-title":"Smart Mater. Struct."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1400010","DOI":"10.1002\/advs.201400010","article-title":"Nanoparticle-Hydrogel composites: Concept, design, and applications of these promising, multifunctional materials","volume":"2","author":"Thoniyot","year":"2015","journal-title":"Adv. Sci."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"e2085","DOI":"10.1002\/term.2641","article-title":"Enhanced bone regeneration and visual monitoring via superparamagnetic iron oxide nanoparticle scaffold in rats","volume":"12","author":"Hu","year":"2018","journal-title":"J. Tissue Eng. Regen. Med."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"626","DOI":"10.1007\/s12274-016-1322-4","article-title":"Magnetic iron oxide nanoparticles accelerate osteogenic differentiation of mesenchymal stem cells via modulation of long noncoding RNA INZEB2","volume":"10","author":"Wang","year":"2017","journal-title":"Nano Res."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.biomaterials.2016.02.004","article-title":"Response of MAPK pathway to iron oxide nanoparticles in vitro treatment promotes osteogenic differentiation of hBMSCs","volume":"86","author":"Wang","year":"2016","journal-title":"Biomaterials"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1363","DOI":"10.5966\/sctm.2014-0017","article-title":"Remotely activated mechanotransduction via magnetic nanoparticles promotes mineralization synergistically with bone morphogenetic protein 2: Applications for injectable cell therapy","volume":"3","author":"Henstock","year":"2014","journal-title":"Stem Cells Transl. Med."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"2318","DOI":"10.1002\/pen.23611","article-title":"Irradiation effects in poly(ethylene oxide)\/silica nanocomposite films and gels","volume":"53","author":"Jurkin","year":"2013","journal-title":"Polym. Eng. Sci."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"743","DOI":"10.2298\/HEMIND141104081M","article-title":"Physicochemical characteristics of gamma irradiation crosslinked poly(vinyl alcohol)\/magnetite ferrogel composite","volume":"68","year":"2014","journal-title":"Hem. Ind."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1007\/s10965-013-0112-x","article-title":"Preparation and characterization of natural polymers as stabilizer for magnetic nanoparticles by gamma irradiation","volume":"20","author":"Eid","year":"2013","journal-title":"J. Polym. Res."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1208","DOI":"10.1016\/j.radphyschem.2011.06.005","article-title":"Synthesis and characterization of silver\/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic method","volume":"80","author":"Stojkovska","year":"2011","journal-title":"Radiat. Phys. Chem."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1007\/s00289-006-0593-4","article-title":"Fabrication of Ag-PVA hydrogel nanocomposite by \u03b3-irradiation","volume":"58","year":"2007","journal-title":"Polym. Bull."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1016\/j.eurpolymj.2015.06.008","article-title":"Dual responsive antibacterial Ag-poly(N-isopropylacrylamide\/itaconic acid) hydrogel nanocomposites synthesized by gamma irradiation","volume":"69","year":"2015","journal-title":"Eur. Polym. J."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"e90055","DOI":"10.1371\/journal.pone.0090055","article-title":"Radiolytic formation of Fe3O4 nanoparticles: Influence of radiation dose on structure and magnetic properties","volume":"9","author":"Abedini","year":"2014","journal-title":"PLoS ONE"},{"key":"ref_19","first-page":"339","article-title":"Gamma irradiation inducing the synthesis of magnetic Fe3O4 nanorod particles in alkaline medium","volume":"3","author":"Ekoko","year":"2014","journal-title":"Int. J. Mater. Sci. Appl."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"793","DOI":"10.1007\/s00396-006-1624-2","article-title":"Factors that may influence the micro-emulsion synthesis of nanosize magnetite particles","volume":"285","author":"Jurkin","year":"2007","journal-title":"Colloid Polym. Sci."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"2014","DOI":"10.1016\/j.materresbull.2009.06.002","article-title":"From iron(III) precursor to magnetite and vice versa","volume":"44","author":"Jurkin","year":"2009","journal-title":"Mater. Res. Bull."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"792","DOI":"10.1016\/j.radphyschem.2011.02.031","article-title":"Investigation of solid phase upon \u03b3-irradiation of ferrihydrite-ethanol suspension","volume":"80","author":"Jurkin","year":"2011","journal-title":"Radiat. Phys. Chem."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/j.matlet.2016.03.009","article-title":"Synthesis route to \u03b4-FeOOH nanodiscs","volume":"173","author":"Jurkin","year":"2016","journal-title":"Mater. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.radphyschem.2015.11.019","article-title":"Gamma-irradiation synthesis of iron oxide nanoparticles in the presence of PEO, PVP or CTAB","volume":"124","author":"Jurkin","year":"2016","journal-title":"Radiat. Phys. Chem."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1016\/j.molstruc.2019.01.075","article-title":"The impact of dextran sulfate on the radiolytic synthesis of magnetic iron oxide nanoparticles","volume":"1183","author":"Jurkin","year":"2019","journal-title":"J. Mol. Struct."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"695","DOI":"10.1039\/C6CP05456K","article-title":"Effect of ferrous ion concentration on the kinetics of radiation-induced iron-oxide nanoparticle formation and growth","volume":"19","author":"Sutherland","year":"2017","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/S0167-577X(97)00077-3","article-title":"Preparation of nanocrystalline Fe3O4 by \u03b3-ray radiation","volume":"33","author":"Wang","year":"1997","journal-title":"Mater. Lett."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"7198","DOI":"10.1039\/c1cp20084d","article-title":"Iron oxyhydroxide colloid formation by gamma-radiolysis","volume":"13","author":"Yakabuskie","year":"2011","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1239","DOI":"10.1039\/a801445k","article-title":"Radiation-induced synthesis of mono- and multi-metallic clusters and nanocolloids","volume":"22","author":"Belloni","year":"1998","journal-title":"New. J. Chem."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1303","DOI":"10.1016\/j.radphyschem.2011.12.021","article-title":"Poly(ethylene oxide) irradiated in the solid state, melt and aqueous solution\u2014A DSC and WAXD study","volume":"81","author":"Jurkin","year":"2012","journal-title":"Radiat. Phys. Chem."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1016\/S0969-806X(01)00442-X","article-title":"Gelation, swelling and water vapor permeability behavior of radiation synthesized poly(ethylene oxide) hydrogels","volume":"64","year":"2002","journal-title":"Radiat. Phys. Chem."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"913","DOI":"10.1016\/0969-806X(95)00291-5","article-title":"Pulse radiolysis of poly(ethylene oxide) in aqueous solutions. I. Formation of macroradicals","volume":"46","author":"Ulanski","year":"1995","journal-title":"Radiat. Phys. Chem."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"917","DOI":"10.1016\/0969-806X(95)00292-6","article-title":"Pulse radiolysis of poly(ethylene oxide) in aqueous solutions. II. Decay of macroradicals","volume":"46","author":"Ulanski","year":"1995","journal-title":"Radiat. Phys. Chem."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1016\/j.jmmm.2017.04.073","article-title":"A method for determination of [Fe3+]\/[Fe2+] ratio in superparamagnetic iron oxide","volume":"439","author":"Jiang","year":"2017","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"108648","DOI":"10.1016\/j.radphyschem.2019.108648","article-title":"\u03b3-irradiation generated ferrous ions affect the formation of magnetite and feroxyhyte","volume":"170","author":"Pustak","year":"2020","journal-title":"Radiat. Phys. Chem."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"110038","DOI":"10.1016\/j.matchar.2019.110038","article-title":"Characterization of radiolytically synthesized feroxyhyte and magnetite nanoparticles","volume":"159","author":"Zadro","year":"2020","journal-title":"Mater. Charact."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"819","DOI":"10.1016\/j.talanta.2017.06.057","article-title":"Sample treatment in M\u00f6ssbauer spectroscopy for protein-related analyses: Nondestructive possibilities to look inside metal-containing biosystems","volume":"174","author":"Kamnev","year":"2017","journal-title":"Talanta"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"4944","DOI":"10.1103\/PhysRevB.28.4944","article-title":"Analysis of the M\u00f6ssbauer quadrupole spectra of some amorphous fluorides","volume":"28","author":"Greneche","year":"1983","journal-title":"Phys. Rev. B"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Yoshida, Y., and Langouche, G. (2013). Application of M\u00f6ssbauer spectroscopy in Earth Sciences. M\u00f6ssbauer Spectroscopy Tutorial Book, Springer. [1st ed.].","DOI":"10.1007\/978-3-642-32220-4"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1007\/s10967-006-0374-4","article-title":"Effects of pH on the morphology of iron oxides synthesized under gamma-irradiation","volume":"270","author":"Gracien","year":"2006","journal-title":"J. Radioanal. Nucl. Chem."},{"key":"ref_41","unstructured":"Spinks, J.W.T., and Woods, R.J. (1990). Introduction to Radiation Chemistry, John Wiley & Sons. [3rd ed.]."},{"key":"ref_42","unstructured":"Spotheim-Maurizot, M., Mostafavi, M., Douki, T., and Belloni, J. (2008). Radiation Chemistry. From Basics to Application in Material and Life Sciences, EDP Sciences."},{"key":"ref_43","first-page":"S31","article-title":"Computation of the effect of pH on spur chemistry in water radiolysis at elevated temperatures","volume":"53","year":"2008","journal-title":"Nukleonika"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"2420","DOI":"10.1021\/j100639a011","article-title":"Reaction of hydroxyl radicals with polyethylene oxide in aqueous solution","volume":"77","author":"Matheson","year":"1973","journal-title":"J. Phys. Chem."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.cplett.2006.09.055","article-title":"Radiolytic reduction of Fe(II) in 2-propanol","volume":"431","author":"Dey","year":"2006","journal-title":"Chem. Phys. Lett."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"2585","DOI":"10.1002\/cphc.200500185","article-title":"Radiolysis of confined water: Hydrogen production at a high dose","volume":"6","author":"Rotureau","year":"2005","journal-title":"Chem. Phys. Chem."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"621","DOI":"10.1002\/polb.1989.090270310","article-title":"Structural studies of radiation-crosslinked poly(ethylene oxide)","volume":"27","author":"Minkova","year":"1989","journal-title":"J. Polym. Sci. Part. B"},{"key":"ref_48","unstructured":"Wypych, G. (2000). Handbook of Fillers, ChemTec Publishing. [2nd ed.]."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"79","DOI":"10.1007\/BF03353655","article-title":"Effect of hydrolyzing agents on the properties of poly(ethylene glycol)-Fe3O4 nanocomposite","volume":"3","author":"Kavas","year":"2011","journal-title":"Nano Micro Lett."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1006\/jcis.1997.5192","article-title":"Adsorption Mechanism of PEO on oxide surfaces","volume":"196","author":"Mathur","year":"1997","journal-title":"J. Colloid Interface Sci."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"154901","DOI":"10.1063\/1.4932371","article-title":"Ferrogels crosslinked by magnetic particles: Field-driven deformation and elasticity studied using computer simulations","volume":"143","author":"Weeber","year":"2015","journal-title":"J. Chem. Phys."},{"key":"ref_52","first-page":"1056","article-title":"Insulation properties of degrading LDPE modified with metallic oxides","volume":"5","author":"Popescu","year":"2011","journal-title":"Optoelectr. Adv. Mater. Rapid Commun."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1016\/S0168-583X(02)00628-6","article-title":"Stability of polymers under ionizing radiation. The many faces of radiation interaction with polymers","volume":"191","author":"Davenas","year":"2002","journal-title":"Nucl. Instrum. Methods Phys. Res. Sect. B"},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"13148","DOI":"10.1021\/la8015518","article-title":"Nanoparticle-reinforced associative network hydrogels","volume":"24","author":"Agrawal","year":"2008","journal-title":"Langmuir"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"11397","DOI":"10.1021\/acs.langmuir.9b01224","article-title":"Photoresponsive nanometer-scale iron alginated hydrogels: A study of gel-sol transition using quartz crystal microbalance","volume":"35","author":"Corbella","year":"2019","journal-title":"Langmuir"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"16166","DOI":"10.1021\/ja807087z","article-title":"Redox-responsive gel-sol\/sol-gel transition in poly(acrylic acid) aqueous solution containing Fe(III) ions swiched by light","volume":"130","author":"Peng","year":"2008","journal-title":"J. Am. Chem. Soc."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"3825","DOI":"10.1002\/app.28436","article-title":"Thermal and rheological properties of poly(vinyl alcohol) and water-soluble chitosan hydrogels prepared by combination of \u03b3-ray irradiation and freeze thawing","volume":"109","author":"Yang","year":"2008","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"2097","DOI":"10.1002\/app.1968.070120912","article-title":"Crosslinking poly(ethylene oxide) in dilute solutions by gamma rays","volume":"12","author":"Rodriguez","year":"1968","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"2629","DOI":"10.1016\/j.polymer.2006.02.001","article-title":"Fluorescence polarization and rheological studies of the poly(N-vinyl-2-pyrrolidone) hydrogels produced by UV radiation","volume":"47","author":"Fechine","year":"2006","journal-title":"Polymer"}],"container-title":["Nanomaterials"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2079-4991\/10\/9\/1823\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:09:28Z","timestamp":1760177368000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2079-4991\/10\/9\/1823"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,9,12]]},"references-count":59,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2020,9]]}},"alternative-id":["nano10091823"],"URL":"https:\/\/doi.org\/10.3390\/nano10091823","relation":{},"ISSN":["2079-4991"],"issn-type":[{"value":"2079-4991","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,9,12]]}}}