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Biocontrol potential of nano-encapsulated essential oil crosslinked with chitosan nanoparticles against tick-borne diseases.

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Title: Biocontrol potential of nano-encapsulated essential oil crosslinked with chitosan nanoparticles against tick-borne diseases.
Authors: Nawaz, Sajida1,2 (AUTHOR) sajidanawaz96@yahoo.com, Shamaila, Shahzadi1,3 (AUTHOR) drshamaila.edu@gmail.com, Oneeb, Muhammad4 (AUTHOR) muhammad.oneeb@uvas.edu.pk, Hassan, Jalees Ul1 (AUTHOR) juh626@gmail.com, Ahmad, Shabab4 (AUTHOR) shababahmad133@yahoo.com, Ramakarshina, Seeram2 (AUTHOR) seeram@nus.edu.sg, Sundarrajan, Subramanian2 (AUTHOR) sundar@nus.edu.sg, Ban, Dayan3 (AUTHOR) dban@uwaterloo.ca
Source: Colloids & Surfaces A: Physicochemical & Engineering Aspects. Sep2025, Vol. 720, pN.PAG-N.PAG. 1p.
Subjects: Eucalyptus globulus, Tick-borne diseases, Essential oils, Nanoparticle size, Zeta potential, Acaricides
Abstract: Tick and tick-borne diseases impacting animals and humans represent a significant global challenge. The persistent issues caused by ticks underscore the effectiveness of current control methods. Repellent substances often act synergistically with acaricides, reducing host-arthropod interactions. Chitosan nanoparticles were synthesized through a two-step process involving the encapsulation of Eucalyptus globulus essential oil. Multiple characterization techniques confirmed successful encapsulation. The synthesized nanoparticles exhibited sizes ranging from 25 to 30 nm, with zeta potentials between + 18 and + 27 mV, indicating a uniform distribution and spherical morphology. It demonstrated a loading capacity of 15–26 % and encapsulation efficiency of 98–99 %, which increased proportionally with the initial oil content. The repellence of the encapsulated oil against ticks over various time intervals was observed to be 90 %, 80 %, 60 %, and 50 %, respectively. The repellent concentrations required to affect 50 % (RC 50) of the tick population were 0.618, 0.675, 0.851, 0.910, and 0.956 mg/mL, while for 90 % (RC 90), they were 4.024, 2.861, 2.943, 2.421, and 1.874 mg/mL. These findings suggest that encapsulation is potentially more eco-friendly, sustainable, and non-toxic to non-target species than conventional methods. The encapsulation process may also enhance the efficacy and extend the shelf life of the repellent, contributing to improved infestation management. [Display omitted] • Nanoencapsulation of Eucalyptus globulus essential oil in chitosan nanoparticles achieved up to 90% tick repellence. • Nanoparticles exhibited high encapsulation efficiency (98–99%) and a loading capacity of 15–26%. • Uniform spherical nanoparticles (25–30 nm) with zeta potentials of +18 to +27 mV ensured colloidal stability. • Encapsulation extended the repellent's duration, sustainably reducing host-tick interactions. • The method offers a biodegradable, non-toxic alternative to synthetic acaricides for safer pest control. [ABSTRACT FROM AUTHOR]
Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 185599449
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
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  Data: Biocontrol potential of nano-encapsulated essential oil crosslinked with chitosan nanoparticles against tick-borne diseases.
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  Data: <searchLink fieldCode="AR" term="%22Nawaz%2C+Sajida%22">Nawaz, Sajida</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sajidanawaz96@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Shamaila%2C+Shahzadi%22">Shamaila, Shahzadi</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> drshamaila.edu@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Oneeb%2C+Muhammad%22">Oneeb, Muhammad</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> muhammad.oneeb@uvas.edu.pk</i><br /><searchLink fieldCode="AR" term="%22Hassan%2C+Jalees+Ul%22">Hassan, Jalees Ul</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> juh626@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Ahmad%2C+Shabab%22">Ahmad, Shabab</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> shababahmad133@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Ramakarshina%2C+Seeram%22">Ramakarshina, Seeram</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> seeram@nus.edu.sg</i><br /><searchLink fieldCode="AR" term="%22Sundarrajan%2C+Subramanian%22">Sundarrajan, Subramanian</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> sundar@nus.edu.sg</i><br /><searchLink fieldCode="AR" term="%22Ban%2C+Dayan%22">Ban, Dayan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> dban@uwaterloo.ca</i>
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  Data: <searchLink fieldCode="JN" term="%22Colloids+%26+Surfaces+A%3A+Physicochemical+%26+Engineering+Aspects%22">Colloids & Surfaces A: Physicochemical & Engineering Aspects</searchLink>. Sep2025, Vol. 720, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Eucalyptus+globulus%22">Eucalyptus globulus</searchLink><br /><searchLink fieldCode="DE" term="%22Tick-borne+diseases%22">Tick-borne diseases</searchLink><br /><searchLink fieldCode="DE" term="%22Essential+oils%22">Essential oils</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticle+size%22">Nanoparticle size</searchLink><br /><searchLink fieldCode="DE" term="%22Zeta+potential%22">Zeta potential</searchLink><br /><searchLink fieldCode="DE" term="%22Acaricides%22">Acaricides</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Tick and tick-borne diseases impacting animals and humans represent a significant global challenge. The persistent issues caused by ticks underscore the effectiveness of current control methods. Repellent substances often act synergistically with acaricides, reducing host-arthropod interactions. Chitosan nanoparticles were synthesized through a two-step process involving the encapsulation of Eucalyptus globulus essential oil. Multiple characterization techniques confirmed successful encapsulation. The synthesized nanoparticles exhibited sizes ranging from 25 to 30 nm, with zeta potentials between + 18 and + 27 mV, indicating a uniform distribution and spherical morphology. It demonstrated a loading capacity of 15–26 % and encapsulation efficiency of 98–99 %, which increased proportionally with the initial oil content. The repellence of the encapsulated oil against ticks over various time intervals was observed to be 90 %, 80 %, 60 %, and 50 %, respectively. The repellent concentrations required to affect 50 % (RC 50) of the tick population were 0.618, 0.675, 0.851, 0.910, and 0.956 mg/mL, while for 90 % (RC 90), they were 4.024, 2.861, 2.943, 2.421, and 1.874 mg/mL. These findings suggest that encapsulation is potentially more eco-friendly, sustainable, and non-toxic to non-target species than conventional methods. The encapsulation process may also enhance the efficacy and extend the shelf life of the repellent, contributing to improved infestation management. [Display omitted] • Nanoencapsulation of Eucalyptus globulus essential oil in chitosan nanoparticles achieved up to 90% tick repellence. • Nanoparticles exhibited high encapsulation efficiency (98–99%) and a loading capacity of 15–26%. • Uniform spherical nanoparticles (25–30 nm) with zeta potentials of +18 to +27 mV ensured colloidal stability. • Encapsulation extended the repellent's duration, sustainably reducing host-tick interactions. • The method offers a biodegradable, non-toxic alternative to synthetic acaricides for safer pest control. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Colloids & Surfaces A: Physicochemical & Engineering Aspects is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=185599449
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.colsurfa.2025.137166
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Eucalyptus globulus
        Type: general
      – SubjectFull: Tick-borne diseases
        Type: general
      – SubjectFull: Essential oils
        Type: general
      – SubjectFull: Nanoparticle size
        Type: general
      – SubjectFull: Zeta potential
        Type: general
      – SubjectFull: Acaricides
        Type: general
    Titles:
      – TitleFull: Biocontrol potential of nano-encapsulated essential oil crosslinked with chitosan nanoparticles against tick-borne diseases.
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            NameFull: Nawaz, Sajida
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            NameFull: Shamaila, Shahzadi
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            – D: 05
              M: 09
              Text: Sep2025
              Type: published
              Y: 2025
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              Value: 09277757
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              Value: 720
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            – TitleFull: Colloids & Surfaces A: Physicochemical & Engineering Aspects
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