{"id":1141,"date":"2019-05-16T00:53:16","date_gmt":"2019-05-16T05:53:16","guid":{"rendered":"https:\/\/uwm.edu\/guo-lab\/?page_id=1141"},"modified":"2025-08-06T22:12:35","modified_gmt":"2025-08-07T03:12:35","slug":"data","status":"publish","type":"page","link":"https:\/\/uwm.edu\/guo-lab\/data\/","title":{"rendered":"Research"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p>Data and\/or presentations\/publications in Guo&#8217;s recent research projects:<strong><br \/>\n<\/strong><\/p>\n<h6>Degradation Products and Changes in Colloidal Properties of Microplastics\/Microfibers During Photochemical Weathering (2022-2025, PI, supported by <a href=\"https:\/\/www.nsf.gov\/\">National Science Foundation <\/a>\/ <a href=\"https:\/\/www.nsf.gov\/div\/index.jsp?div=CHE\">Division of Chemistry<\/a>, project #<a href=\"https:\/\/www.nsf.gov\/awardsearch\/showAward?AWD_ID=2204145&amp;HistoricalAwards=false\">2204145<\/a>)<\/h6>\n<ul>\n<li>Kteeba, S.M., and <strong>Guo, L.<\/strong> 2025. UV-induced release and characterization of dissolved organic matter from disposable face mask layers and polypropylene. <em><a href=\"https:\/\/www.sciencedirect.com\/journal\/journal-of-hazardous-materials\">Journal of Hazardous Materials<\/a><\/em>, 496: 139438. <a href=\"https:\/\/doi.org\/10.1016\/j.jhazmat.2025.139438\">https:\/\/doi.org\/10.1016\/j.jhazmat.2025.139438<\/a><\/li>\n<li>Kteeba, S.M., Krueger, S.J., <strong>Guo, L<\/strong>. 2025. Impacts of Leaching Methods on the Chemical Properties of Dissolved Organic Matter released from PVC Microplastics. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li>Kteeba, S.M. and <strong>Guo, L<\/strong>. 2024. <em>Photodegradation processes and weathering products of microfibers in aquatic environments<\/em>. <a href=\"https:\/\/pubs.acs.org\/journal\/esthag\"><em>Environ. Sci. Technol<\/em>.<\/a> <strong>58<\/strong> (37), <span class=\"cit-pageRange\">16535\u201316546<\/span>. <a href=\"https:\/\/doi.org\/10.1021\/acs.est.4c03667\">https:\/\/doi.org\/10.1021\/acs.est.4c03667<\/a><\/li>\n<li>Kteeba, S.M., <strong>Guo, L<\/strong>.* 2024. PFAS binding to dissolved organic matter released from microplastics. Presentation at the 2024 <a href=\"https:\/\/www.acs.org\/meetings\/acs-meetings\/fall.html\">ACS Fall Meeting<\/a>, August 18-22, 2024. Denver, CO (<a href=\"https:\/\/acs.digitellinc.com\/p\/s\/pfas-binding-to-dissolved-organic-matter-released-from-microplastics-603084\">Abstract ID: 4109564<\/a>)<\/li>\n<li>Kteeba, S.M. and <strong>Guo, L<\/strong>. 2024. Chemical and optical characterization of dissolved organic matter released from Disposable Face Masks under UV-irradiation. Presentation at the <a href=\"https:\/\/www.acs.org\/meetings\/acs-meetings\/fall.html\">2024 ACS Fall Meeting<\/a>, August 18-22, 2024. Denver, CO (Abstract ID: 4106647).<\/li>\n<li>Thao, N., Krueger, S.J., Kteeba, S.M and <strong>Guo, L<\/strong>. 2024. Impact on photodegradation and thermal leaching on chemical properties of plastics-derived dissolved organic matter (DOM). Poster presentation at Symposium of the 2024 ACS Project-SEED Program, University of Wisconsin-Milwaukee, August 7, 2024.<\/li>\n<li>Wilson, B., Krueger, S.J., Kteeba, S.M and <strong>Guo, L<\/strong>. 2024. Characterization of microplastic-derived dissolved organic matter (DOM) and its interactions with PFAS in aquatic environments. Presentation at 2024 Freshwater@UW Summer Research Symposium, Madison, Wisconsin, August 1, 2024.<\/li>\n<li>Schutte, M.M., Kteeba, S.M. and <strong>Guo, L<\/strong>. 2024. Photochemical reactivity of water-soluble dissolved organic matter derived from microplastics and microfibers. <a href=\"https:\/\/www.sciencedirect.com\/journal\/science-of-the-total-environment\/vol\/856\/part\/P2\"><em>Science of the Total Environment<\/em><\/a>, <strong>911<\/strong>, 168616 <a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2023.168616\">https:\/\/doi.org\/10.1016\/j.scitotenv.2023.168616<\/a><\/li>\n<li>Grewal, R., <strong>Guo, L<\/strong>., and Scanlan, M.K. 2024. Lead water pipes created a health disaster in Flint, but replacing them with cheap PVC plastic \u2013 as many cities are doing \u2013 carries hidden costs. <strong>The <a href=\"https:\/\/theconversation.com\/lead-water-pipes-created-a-health-disaster-in-flint-but-replacing-them-with-cheaper-plastic-as-some-cities-are-doing-carries-hidden-costs-232252\">Conversation<\/a> International. <\/strong>June-25, 2024. (See this <a href=\"https:\/\/theconversation.com\/lead-water-pipes-created-a-health-disaster-in-flint-but-replacing-them-with-cheaper-plastic-as-some-cities-are-doing-carries-hidden-costs-232252\">link<\/a> for the article)<\/li>\n<li><strong>Guo, L<\/strong>., Gibbs, S., and Kteeba, S.M. 2023. Photochemical Reactivity of Disposable Face Masks and Polypropylene in aquatic environments. The 2023 AGU Fall Meeting, San Francisco, CA , December 11-15, 2023 (abstract ID: 1414866).<\/li>\n<li>Ahmed, A.S.S., Billah, M.M., Mohammad Ali, M, Bhuiyan, M.K.A., <strong>Guo, L<\/strong>., Mohinuzzaman, M., Hossain, M.B., Rahman, M.S., Islam, M.S., Yan, M. and Cai, W. 2023. Microplastics in aquatic environments: A comprehensive review of toxicity, removal, and remediation strategies. <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0048969723010306?dgcid=coauthor\"><em>Science of the Total Environment<\/em><\/a>, <strong>876<\/strong>, 162414. <a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2023.162414\">https:\/\/doi.org\/10.1016\/j.scitotenv.2023.162414<\/a>.<\/li>\n<li>Gibbs, S.J., Kteeba, S.M. and <strong>Guo, L<\/strong>. Photochemical degradation of disposable face masks and polypropylene in the environment. Presentation at the 15th Annual 51ÁÔÆæ Undergraduate Research Symposium. April 28th, 2023.<\/li>\n<li>Schutte, M.P., Kteeba, S.M. and <strong>Guo, L<\/strong>. 2023. Yields, characterization and photochemical reactivity of water-soluble dissolved organic matter from microplastics and microfibers. Oral presentation at the 2023 ACS Fall Meeting, August 13-17, 2023. San Francisco, CA (Abstract ID: 3908504).<\/li>\n<li>Kteeba, S.M. and <strong>Guo, L<\/strong>. 2023. Photochemical behavior and degradation products of microfibers in freshwater environments. Oral presentation at the 2023 ACS Fall Meeting, August 13-17, 2023. San Francisco, CA (Abstract ID: 3920637).<\/li>\n<\/ul>\n<h6>Sources and deposition of phosphorus in Lake Michigan (2020-2024, PI, supported by 51ÁÔÆæ&#8217;s Discovery and Innovation Grant Program)<\/h6>\n<ul>\n<li>Krueger, S.J., Wahl, T., Klump, J.V., and <strong>Guo, L.<\/strong> 2025. Deposition of toxic metals and sedimentary organic carbon in Green Bay, Lake Michigan. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li><strong>Guo, L<\/strong>., Lin, P. and Klump, J.V. 2024. Isotopic composition, spatial distributions, and depositional history of total organic carbon and black carbon in Green Bay, Lake Michigan. <a href=\"https:\/\/www.agu.org\/annual-meeting\">2024 AGU Fall Meeting<\/a>, December 9-13, 2024, Washington DC. Abstract # 1597370.<\/li>\n<li>Zhou, Z, Lin, H., D\u2019Sa, E.J., and <strong>Guo, L<\/strong>. 2024. A comparative study of optical and size properties of dissolved organic matter in the lower Mississippi River and Pearl River. <a href=\"https:\/\/www.sciencedirect.com\/journal\/marine-chemistry\"><em>Mar. Chem<\/em><\/a>. <strong>267<\/strong>, 104453. <a href=\"https:\/\/doi.org\/10.1016\/j.marchem.2024.104453\">https:\/\/doi.org\/10.1016\/j.marchem.2024.104453<\/a><\/li>\n<li>Lin, P., Klump, J.V., and <strong>Guo, <\/strong>L. 2024. Chemical speciation, reactivity and long-term burial of sedimentary phosphorus in a seasonally hypoxia-influenced freshwater estuary. <a href=\"https:\/\/www.sciencedirect.com\/journal\/science-of-the-total-environment\/vol\/943\/suppl\/C\"><em>Sci. Tot. Environ<\/em><\/a>., <strong>948<\/strong>, 174957. <a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2024.174957\">https:\/\/doi.org\/10.1016\/j.scitotenv.2024.174957<\/a><\/li>\n<li>Yang, B., Lin, H., Bartlett, S.L., Houghton, E.M., Robertson, D.M. and <strong>Guo, L<\/strong>. 2021. Partitioning and transformation of organic and inorganic phosphorus among dissolved, colloidal and particulate phases in a hypereutrophic freshwater estuary. <a href=\"https:\/\/www.journals.elsevier.com\/water-research\/\">Water Research<\/a>, <strong>196<\/strong>, 117025. <a href=\"https:\/\/doi.org\/10.1016\/j.watres.2021.117025\">https:\/\/doi.org\/10.1016\/j.watres.2021.117025<\/a>.<\/li>\n<li><strong>Guo, L<\/strong>., Lin, P., Klump, J.V. 2023.\u00a0 Fluxes and transformation of sedimentary phosphorus in Green Bay, a hypereutrophic freshwater estuary. Goldschmidt 2023 Conference, 9-14 July, Lyon France. Abstract # 17050.<\/li>\n<li><strong>Guo, L.<\/strong>, Lin, P., Klump, J.V., Bartlett, S,L. and Robertson, D.M. 2023. Chemical speciation, transformation, and deposition of phosphorus in Green Bay, Lake Michigan. Phosphorus: Lessons from 10+ Years of Numeric Standards for Wisconsin Waters. February 7, 2023, Monona Terrace, Madison WI.<\/li>\n<li>Lin, H., Bartlett, S.L. and <strong>Guo, L<\/strong>. 2023. Distinct variations in fluorescent DOM components along a trophic gradient in the lower Fox River-Green Bay as characterized using one-sample PARAFAC approach. <em><a href=\"https:\/\/www.sciencedirect.com\/journal\/science-of-the-total-environment\/vol\/856\/part\/P2\">Science of the Total Environment<\/a><\/em>, <strong>902<\/strong>: 165891. <a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2023.165891\">https:\/\/doi.org\/10.1016\/j.scitotenv.2023.165891<\/a><\/li>\n<li>Yuan, F., DiBiasio, E., Mayer, B. and <strong>Guo, L<\/strong>. 2023. Chemical and isotopic constraints on carbon and sulfur dynamics in Lake Erie nearshore waters. <a href=\"http:\/\/www.journals.elsevier.com\/journal-of-great-lakes-research\/\"><em>Journal of Great Lakes Research<\/em><\/a>. <a href=\"https:\/\/doi.org\/10.1016\/j.jglr.2023.07.005\">https:\/\/doi.org\/10.1016\/j.jglr.2023.07.005<\/a><\/li>\n<li>Lin, P., Klump, J.V., and <strong>Guo, L<\/strong>. 2023. Chemical speciation, reactivity and long-term burial of sedimentary phosphorus in a seasonally hypoxia-influenced freshwater estuary. (submitted).<\/li>\n<\/ul>\n<h6>Role of Dissolved Organic Matter in Regulating the Sorption of Per- and Polyfluoroalkyl Substances (PFAS) by Engineered Adsorbents (2022-2024, Co-PI with Drs. Y. Wang and S. Xu, supported by 51ÁÔÆæ&#8217;s Discovery and Innovation Grant program)<\/h6>\n<ul>\n<li>Ryan, D., Baldus, C., Samuels, M., Kteeba, S.M., Dong, Q., Wang, Y., <strong>Guo, L<\/strong>., Mayer, B., and McNamara, P. 2025. Peroxi-electrocoagulation for PFAS mitigation: The impact of water quality and dissolved organic matter on removal pathways. <a href=\"https:\/\/pubs.acs.org\/page\/aeecco\/about.html\"><em>ACS ES&amp;T Engineering<\/em><\/a>,(submitted).<\/li>\n<li>Krueger, S.J., Zhang, W., Kteeba, S.M., Wang, Y. and <strong>Guo, L<\/strong>. 2025. Partitioning of PFAS between dissolved and colloidal phases in <em>freshwater environment<\/em><em>s<\/em>. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li>Kteeba, S.M., <strong>Guo, L<\/strong>.* 2024. PFAS binding to dissolved organic matter released from microplastics. Presentation at the 2024 <a href=\"https:\/\/www.acs.org\/meetings\/acs-meetings\/fall.html\">ACS Fall Meeting<\/a>, August 18-22, 2024. Denver, CO (Abstract ID: <a href=\"https:\/\/acs.digitellinc.com\/p\/s\/pfas-binding-to-dissolved-organic-matter-released-from-microplastics-603084\">4109564<\/a>)<\/li>\n<li>Li, D., Lin, H. and <strong>Guo, L<\/strong>. 2023. Comparison of molecular weight distributions and size-dependent optical properties among model and reference natural dissolved organic matter. <a href=\"https:\/\/www.springer.com\/journal\/11356\/\"><em>Environ. Sci. Poll. Res.<\/em><\/a>, <b data-test=\"journal-volume\">\u00a030<\/b>, 57638\u201357652.\u00a0 <a href=\"https:\/\/link.springer.com\/article\/10.1007\/s11356-023-26398-3\">https:\/\/doi.org\/10.1007\/s11356-023-26398-3<\/a><\/li>\n<li>Lin, H., Bartlett, S.L. and <strong>Guo, L<\/strong>. 2023. Distinct variations in fluorescent DOM components along a trophic gradient in the lower Fox River-Green Bay as characterized using one-sample PARAFAC approach. <em><a href=\"https:\/\/www.sciencedirect.com\/journal\/science-of-the-total-environment\/vol\/856\/part\/P2\">Science of the Total Environment<\/a><\/em>, <strong>902<\/strong>: 165891. <a href=\"https:\/\/doi.org\/10.1016\/j.scitotenv.2023.165891\">https:\/\/doi.org\/10.1016\/j.scitotenv.2023.165891<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h6>Micro- and nano-plastics as vectors for the transport of organic contaminants in freshwater environments (2020-2022, PI, with Co-PI Prof. Joel Pedersen, <span dir=\"ltr\" role=\"presentation\">Supported by <a href=\"https:\/\/freshwater.wisconsin.edu\/\">Freshwater Collaborative of Wisconsin<\/a>)<\/span><\/h6>\n<ul>\n<li>Kteeba, S.M., <strong>Guo, L<\/strong>.* 2024. PFAS binding to dissolved organic matter released from microplastics. Presentation at the 2024 <a href=\"https:\/\/www.acs.org\/meetings\/acs-meetings\/fall.html\">ACS Fall Meeting<\/a>, August 18-22, 2024. Denver, CO (Abstract ID: <a href=\"https:\/\/acs.digitellinc.com\/p\/s\/pfas-binding-to-dissolved-organic-matter-released-from-microplastics-603084\">4109564<\/a>)<\/li>\n<li>Wilson, B., Krueger, S.J., Kteeba, S.M and <strong>Guo, L<\/strong>. 2024. Characterization of microplastic-derived dissolved organic matter (DOM) and its interactions with PFAS in aquatic environments. Presentation at 2024 Freshwater@UW Summer Research Symposium, Madison, Wisconsin, August 1, 2024.<\/li>\n<li>Schutte, M. 2022. Investigating Microplastics Size Distribution and Fate in Aquatic Environments. Presentation at the Fall 2022 Internship Symposium, December 15, 2022.<\/li>\n<li>Gibbs, S.J., Kteeba, S.M. and <strong>Guo, L<\/strong>. 2023. Photochemical degradation of disposable face masks and polypropylene in the environment. Presentation at the 15th Annual 51ÁÔÆæ Undergraduate Research Symposium. April 28th, 2023.<\/li>\n<li>Sollberger, M., Weidert, D., Kteeba, S.M. and <strong>Guo, L<\/strong>. 2023. Evaluating the photochemical degradation of biodegradable plastics. Poster presentation at the annual UR@51ÁÔÆæ symposium. University of Wisconsin-Milwaukee, Milwaukee, August 4, 2023.<\/li>\n<\/ul>\n<h6><span dir=\"ltr\" role=\"presentation\">Deposition and removal of emerging contaminants in the Milwaukee Estuary Are<\/span><span dir=\"ltr\" role=\"presentation\">a <\/span><span dir=\"ltr\" role=\"presentation\">of Concern (2023-2025, PIs: Drs. Inna Popova and <a href=\"https:\/\/uwm.edu\/guo-lab\/\">Laodong Guo<\/a>, Supported by <a href=\"https:\/\/freshwater.wisconsin.edu\/research\/funded-projects\/?_search_projects=Laodong%20Guo\">Freshwater Collaborative of Wisconsin<\/a>)<\/span><\/h6>\n<ul>\n<li><strong>Guo, L<\/strong>., Kteeba, S.M., Krueger, S.J., and Gorski, P.R. 2025. Depositional history of PFAS in the bay of Green Bay in Lake Michigan over the last 80 years. Presentation at the 2025 Goldschmidt Meeting, Prague, Czech Republic. 6-11 July 2025.<\/li>\n<li><strong>Guo, L<\/strong>., Kteeba, S.M., Krueger, S.J. 2025. Variations of PFAS concentrations in Milwaukee estuary sediments: insights into contamination history and sources. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li>Krueger, S.J., Zhang, W., Kteeba, S.M., Wang, Y. and <strong>Guo, L<\/strong>. 2025. Partitioning of PFAS between dissolved and colloidal phases in <em>freshwater environment<\/em><em>s<\/em>. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li>Krueger, S.J., Wahl, T., Klump, J.V., and <strong>Guo, L.<\/strong> 2025. Deposition of toxic metals and sedimentary organic carbon in Green Bay, Lake Michigan. Presentation at the <a href=\"https:\/\/iaglr.org\/iaglr2025\/\">68th IAGLR Conference<\/a>, Milwaukee, June 2-6, 2025.<\/li>\n<li>Kteeba, S.M. and <strong>Guo, L*<\/strong>. 2024. PFAS binding to dissolved organic matter released from microplastics. Oral presentation at the 2024 ACS Fall Meeting, August 18-22, 2024. Denver, CO (<a href=\"https:\/\/acs.digitellinc.com\/p\/s\/pfas-binding-to-dissolved-organic-matter-released-from-microplastics-603084\">Abstrac<\/a>t ID: 4109564).<\/li>\n<li>Wilson, B., Krueger, S.J., Kteeba, S.M and <strong>Guo, L<\/strong>. 2024. Characterization of microplastic-derived dissolved organic matter (DOM) and its interactions with PFAS in aquatic environments. Presentation at 2024 Freshwater@UW Summer Research Symposium, Madison, Wisconsin, August 1, 2024.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Funding Support<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"312\"><img decoding=\"async\" title=\"Freshwater Collaborative of Wisconsin\" src=\"https:\/\/freshwater.wisconsin.edu\/wp-content\/themes\/freshwater-collab-theme\/images\/fcw-logo-horizontal.png\" alt=\"Freshwater Collaborative of Wisconsin\" \/><\/td>\n<td width=\"312\">\n<p style=\"margin: 0in\"><a href=\"https:\/\/freshwater.wisconsin.edu\/\">Freshwater collaborative of Wisconsin<\/a><\/p>\n<p style=\"margin: 0in\">2020-2022 (UWSA.09)<\/p>\n<p style=\"margin: 0in\">2023-2025 (SL3.27)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-2360 aligncenter\" src=\"https:\/\/uwm.edu\/guo-lab\/wp-content\/uploads\/sites\/289\/2024\/12\/NSF-Logi.jpg\" alt=\"\" width=\"165\" height=\"155\" \/><\/td>\n<td width=\"312\">\n<p style=\"margin: 0in\"><a href=\"https:\/\/www.nsf.gov\/\">National Science Foundation<\/a><\/p>\n<p style=\"margin: 0in\">Division of Chemistry: award #<a href=\"https:\/\/www.nsf.gov\/awardsearch\/showAward?AWD_ID=2204145&amp;HistoricalAwards=false\">2204145<\/a><\/p>\n<p style=\"margin: 0in\">(2022-2026)<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"312\">&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"attachment-724x724 size-724x724\" src=\"https:\/\/uwm.edu\/r2d2\/wp-content\/uploads\/sites\/438\/2021\/05\/51ÁÔÆæ-logo.png\" alt=\"University of Wisconsin-Milwaukee Logo\" width=\"724\" height=\"209\" \/><\/td>\n<td width=\"312\">\n<p style=\"margin: 0in\">Discovery and Innovation Grant (DIG) Program<\/p>\n<p>2020-2022 (PI), 2022-2024 (Co-PI)<\/p>\n<p style=\"margin: 0in\">\n<\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<tr>\n<td width=\"312\"><\/td>\n<td width=\"312\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; Data and\/or presentations\/publications in Guo&#8217;s recent research projects: Degradation Products and Changes in Colloidal Properties of Microplastics\/Microfibers During Photochemical Weathering (2022-2025, PI, supported by National Science Foundation \/ Division of Chemistry, project #2204145) Kteeba, S.M., and Guo, L. 2025&#8230;. <a class=\"read-more\" href=\"https:\/\/uwm.edu\/guo-lab\/data\/\">Read More<\/a><\/p>\n","protected":false},"author":3344,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":"","uwm_wg_additional_authors":[]},"class_list":["post-1141","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Research - Dr. Laodong Guo Lab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uwm.edu\/guo-lab\/data\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Research\" \/>\n<meta property=\"og:description\" content=\"&nbsp; Data and\/or presentations\/publications in Guo&#8217;s recent research projects: Degradation Products and Changes in Colloidal Properties of Microplastics\/Microfibers During Photochemical Weathering (2022-2025, PI, supported by National Science Foundation \/ Division of Chemistry, project #2204145) Kteeba, S.M., and Guo, L. 2025.... 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