Influence of Surface Stabilizing Agents on the Structural, Optical, and Antibacterial Properties of Chemically Synthesized MoS2 Nanoparticles

Influence of Surface Stabilizing Agents on the Structural, Optical, and Antibacterial Properties of Chemically Synthesized MoS2 Nanoparticles | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Influence of Surface Stabilizing Agents on the Structural, Optical, and Antibacterial Properties of Chemically Synthesized MoS 2 Nanoparticles Dalya H. Hamad, Bilal K. Al-Rawi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9064733/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 8 You are reading this latest preprint version Abstract MoS 2 nanoparticles were synthesized via chemical route with the help of various surface stabilizers to ascertain their role in controlling the structural, optical and colloidal as well antibacterial activities. XRD verified the development of hexagonal 2H-MoS 2 with crystallite sizes that went from 6.6 nm (C1) to pass through 8.7 nm (C2), and then reach to 10.7 nm (C3). FESEM resulted in C1 sizes ranging from 41 to 85 nm, C2 from 32 to 53 nm, and C3 from 95 to169nm, while AFM showed surface roughness of 6.67nm,17.58nmand54.35 respectively. Optical absorption showed that C3 has the highest absorption and conversely, C2 displays the lowest. Calculated band gaps were 3.45 eV (C1), 3.60 eV (C2) and 3.35 eV (C3). According to the zeta potential measurement, negatively charged surfaces were observed with slight enhancement of stability from C1 to C3. C1, C2 and C3 showed inhibition zones of 22 mm, 20 mm and 17 mm toward staphylococcus aureus and only C3 (15mm) was found active against escherichia coli in antibacterial tests.. The findings suggest that the surface engineering dictates the active function of MoS 2 . MoS2 Chemical synthesis PVP L-cysteine XRD. Zeta potential Antibacterial activity Surface morphology Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 04 May, 2026 Reviews received at journal 27 Apr, 2026 Reviewers agreed at journal 09 Apr, 2026 Reviewers agreed at journal 12 Mar, 2026 Reviewers invited by journal 11 Mar, 2026 Editor assigned by journal 10 Mar, 2026 Submission checks completed at journal 10 Mar, 2026 First submitted to journal 08 Mar, 2026 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-9064733","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":605207182,"identity":"fd8cd204-ed60-40aa-a938-1d5209d3ec5e","order_by":0,"name":"Dalya H. Hamad","email":"","orcid":"","institution":"Ministry of Education","correspondingAuthor":false,"prefix":"","firstName":"Dalya","middleName":"H.","lastName":"Hamad","suffix":""},{"id":605207183,"identity":"f3031d70-384b-49b2-a2c8-ca6e2c10c3c0","order_by":1,"name":"Bilal K. 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XRD verified the development of hexagonal\u0026ensp;2H-MoS\u003csub\u003e2\u003c/sub\u003e with crystallite sizes that went from 6.6 nm (C1) to pass through 8.7 nm (C2), and then reach to 10.7 nm (C3). FESEM resulted in C1 sizes ranging from 41 to 85 nm, C2 from\u0026ensp;32 to 53 nm, and C3 from 95 to169nm, while AFM showed surface roughness of 6.67nm,17.58nmand54.35 respectively. Optical absorption showed that C3 has the highest absorption and conversely, C2 displays the\u0026ensp;lowest. Calculated band gaps were 3.45 eV\u0026ensp;(C1), 3.60 eV (C2) and 3.35 eV (C3). According to the zeta potential measurement, negatively\u0026ensp;charged surfaces were observed with slight enhancement of stability from C1 to C3. C1, C2 and C3 showed inhibition zones of 22 mm, 20 mm\u0026ensp;and 17 mm toward staphylococcus aureus and only C3 (15mm) was found active against escherichia coli in antibacterial tests.. 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