{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T17:08:49Z","timestamp":1792516129935,"version":"4.5.0"},"reference-count":50,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,6,21]],"date-time":"2022-06-21T00:00:00Z","timestamp":1655769600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Basic Microbiol"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Peptide IDR1018 and chitosan nanoparticles (CNs) showed antimicrobial and anti\u2010biofilm activity against bacteria. In this study, the antimicrobial effects of peptide IDR1018 and CNs were evaluated on 50 clinical isolates of uropathogenic <jats:italic>Escherichia coli<\/jats:italic> (UPEC) resistant to ciprofloxacin. Ion gelation method was applied for CNs synthesis. Scanning electron microscope (SEM) and dynamic light scattering (DLS) were utilized to evaluate the nanoparticles. Antimicrobial and synergistic activity of peptide IDR1018 and CNs with ciprofloxacin were evaluated by microtiter broth dilution method. The checkerboard test was used to investigate the antimicrobial effects of IDR1018 and CNS in combination with ciprofloxacin. Anti\u2010biofilm effect of ciprofloxacin, peptide IDR1018, and CNs was evaluated using crystal violet method. Fourteen (28%), 21 (42%), and 15 (30%) of clinical isolates produced strong, moderate, and weak biofilm, respectively. The CNs were spherical and uniform under electron microscopy with an average diameter of 246\u2009nm. The minimum inhibitory concentration (MIC) values were 16\u2013128, 20\u201340, and 375\u2013750 (\u00b5g\/ml) for ciprofloxacin, peptide IDR1018, and CNs, respectively. Fractional inhibitory concentration (FIC) analysis indicated a synergistic effect of ciprofloxacin in combination with peptide IDR1018, but in combination with CNs, this antibiotic showed an additive effect. Our results revealed that peptide IDR1018 and CNs have antimicrobial properties on UPEC isolates. Biofilm inhibition and biofilm eradication of clinical isolate were shown by peptide IDR1018 and CNs in a concentration\u2010dependent manner. The antimicrobial agents alone and in combination decreased the number of viable bacteria in the biofilms. Therefore, these components seem to be a treating approach against biofilm\u2010forming UPEC isolates.<\/jats:p>","DOI":"10.1002\/jobm.202200156","type":"journal-article","created":{"date-parts":[[2022,6,22]],"date-time":"2022-06-22T01:59:59Z","timestamp":1655863199000},"page":"1229-1240","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Investigation of the effects of antimicrobial and anti\u2010biofilm peptide IDR1018 and chitosan nanoparticles on ciprofloxacin\u2010resistant <i>Escherichia coli<\/i>"],"prefix":"10.1002","volume":"62","author":[{"given":"Aida","family":"Haji Hossein Tabrizi","sequence":"first","affiliation":[{"name":"Department of Microbiology Shahr\u2010e\u2010Qods Branch, Islamic Azad University Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2191-7873","authenticated-orcid":false,"given":"Mehri","family":"Habibi","sequence":"additional","affiliation":[{"name":"Department of Molecular Biology Pasteur Institute of Iran Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Foroohi","sequence":"additional","affiliation":[{"name":"Department of Microbiology Shahr\u2010e\u2010Qods Branch, Islamic Azad University Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taher","family":"Mohammadian","sequence":"additional","affiliation":[{"name":"Department of Microbiology Shahr\u2010e\u2010Qods Branch, Islamic Azad University Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad Reza","family":"Asadi Karam","sequence":"additional","affiliation":[{"name":"Department of Molecular Biology Pasteur Institute of Iran Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,6,21]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.3389\/fcimb.2021.691210"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1128\/IAI.01319-06"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2362.2008.01986.x"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/nrmicro3432"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01315-13"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.33073\/pjm-2019-048"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.3390\/antibiotics10091095"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.clim.2009.12.004"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/ijos.2014.65"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.02434-15"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.ppat.1004152"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.3390\/polym13060904"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.2147\/IJN.S121956"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.carbpol.2015.11.072"},{"key":"e_1_2_9_16_1","first-page":"244","article-title":"Evaluation of biofilm\u2010forming capabilities of urinary Escheichia coli isolates in microtiter plate using two different culture media","volume":"3","author":"Samet M","year":"2013","journal-title":"Int J Mol Clin Microbiol"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/nprot.2007.521"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01106-10"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.3390\/antibiotics10020102"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12866-018-1321-6"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.3390\/antibiotics9090620"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eursup.2016.04.003"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12879-018-3467-0"},{"key":"e_1_2_9_24_1","first-page":"e62129","article-title":"Contribution of GyrA and QnrA genes in ciprofloxacin resistant Ecsherichia coli isolates from patients with urinary tract infections of imam khomeini hospital of Tehran","volume":"6","author":"Zahedi Z","year":"2018","journal-title":"Arch Pediatr"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12866-018-1237-1"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bbamem.2020.183282"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-019-54212-z"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13568-021-01208-6"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1128\/AAC.03163-14"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.3109\/21691401.2014.948548"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.3390\/pharmaceutics12030238"},{"key":"e_1_2_9_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.foodcont.2016.05.005"},{"key":"e_1_2_9_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.microc.2009.02.001"},{"key":"e_1_2_9_34_1","doi-asserted-by":"publisher","DOI":"10.1021\/nl5021848"},{"key":"e_1_2_9_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12221-017-6690-1"},{"key":"e_1_2_9_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.carbpol.2016.08.076"},{"key":"e_1_2_9_37_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11051-014-2517-9"},{"key":"e_1_2_9_38_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.carres.2004.09.007"},{"key":"e_1_2_9_39_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11164-016-2428-8"},{"key":"e_1_2_9_40_1","doi-asserted-by":"publisher","DOI":"10.15171\/apb.2017.051"},{"key":"e_1_2_9_41_1","doi-asserted-by":"publisher","DOI":"10.2147\/IDR.S328788"},{"key":"e_1_2_9_42_1","first-page":"375","article-title":"Repeated treatments with chitosan in combination with antibiotics completely eradicate uropathogenic Escherichia coli from infected mouse urinary bladders","volume":"216","author":"Erman A","year":"2017","journal-title":"J Infect Dis"},{"key":"e_1_2_9_43_1","doi-asserted-by":"publisher","DOI":"10.4103\/0377-4929.48960"},{"key":"e_1_2_9_44_1","doi-asserted-by":"publisher","DOI":"10.3390\/molecules27030699"},{"key":"e_1_2_9_45_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-017-17765-5"},{"key":"e_1_2_9_46_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.colsurfb.2019.110627"},{"key":"e_1_2_9_47_1","doi-asserted-by":"publisher","DOI":"10.1002\/psc.2708"},{"key":"e_1_2_9_48_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.addr.2013.07.011"},{"key":"e_1_2_9_49_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12866-015-0359-y"},{"key":"e_1_2_9_50_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13756-019-0533-3"},{"key":"e_1_2_9_51_1","doi-asserted-by":"publisher","DOI":"10.3389\/fmicb.2020.538602"}],"container-title":["Journal of Basic Microbiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jobm.202200156","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jobm.202200156","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jobm.202200156","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,21]],"date-time":"2023-08-21T12:22:04Z","timestamp":1692620524000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jobm.202200156"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,6,21]]},"references-count":50,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2022,10]]}},"alternative-id":["10.1002\/jobm.202200156"],"URL":"https:\/\/doi.org\/10.1002\/jobm.202200156","archive":["Portico"],"relation":{},"ISSN":["0233-111X","1521-4028"],"issn-type":[{"value":"0233-111X","type":"print"},{"value":"1521-4028","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,6,21]]},"assertion":[{"value":"2022-03-15","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-05-27","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-06-21","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}