DARU Journal of Pharmaceutical Sciences

, Volume 27, Issue 2, pp 695–708 | Cite as

Application of computational tools for the designing of Oleuropein loaded nanostructured lipid carrier for brain targeting through nasal route

  • Sucharitha PalagatiEmail author
  • Satyanarayana SV
  • Bhaskar Reddy Kesavan
Research article



Meningitis is an inflammation of meninges encircled the brain and spinal cord. Currently it can be treated with second generation cephalosporins which were ended up with an unresolvable problem called Multi Drug Resistance (MDR). Hence, there is a need to develop a better herbal molecule to conflict the MDR.


Hot Blanching technique followed by ultra sound assisted extraction using bio-solvent aqueous glycerol was used to extract OLE from olive leaves. QbD tool was applied to predict the interactions between Critical Material Attributes (Ratio of solid Lipid X1, Concentration of Surfactant X2) and Critical Process Parameters (Homogenization Time X3) on Critical Quality Attributes (CQA, Particle Size Y1, Zeta Potential Y2, and Entrapment Efficiency Y3). Particulate characteristics were evaluated and Invivo pharmacokinetic study was done in albino Wistar rats by IV and IN route of administration.


Thermal studies reflect the formation of low ordered crystalline structure of lipid matrix which offers higher encapsulation of drug in NLC than physical mixture. CMA and CPP show significant effect on CQA and method operable design range was developed. Histo-pathological studies confirms that there is no signs of toxicity and in-vitro drug release studies reveals a rapid release of a drug initially followed by prolonged release of oleuropein upto 24 h. The absolute bioavailability of drug loaded NLC in brain was higher in IN route compared to NLC administered by IV route.


In a nutshell, challenges offered by the hydrophilic OLE for brain targeting can be minimized through lipidic nature of NLC.

Graphical Abstract


Hot blanching Bio-solvent Oleuropein QbD Brain targetting 



The Principal Author acknowledges financial support from Department of Science and Technology (DST-Women Scientist Scheme) for this project (DST Ref No: SR/WOS-A/LS-1262/2015(G) Dated 30.05.2016). Authors also highly thankful to Dr.R.Venkataswamy, Chairman and Mr. R.V. Srinivas, Vice-Chairman, Sri Venkateswara College of Pharmacy, RVS Nagar, Chittoor, Andhra Pradesh to pursue and successful competition of this research work.

Funding information

The principal author acknowledges the financial support from Department of Science andTechnology (DST) – Women Scientist Scheme (WOS-A) for this project (DST No: SR/WOS-A/LS-1262- 2015 dated 30.05.2016).

Compliance with ethical standards

Conflict of interest

All authors declare no conflict of interest.

Ethical approval

This article does not contain any studies with human participants.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Sucharitha Palagati
    • 1
    • 2
    Email author
  • Satyanarayana SV
    • 3
  • Bhaskar Reddy Kesavan
    • 4
  1. 1.Department of PharmaceuticsJawaharlal Nehru Technological University AnantapurAnanthapuramuIndia
  2. 2.Department of PharmaceuticsSri Venkateswara College of PharmacyChittoorIndia
  3. 3.Department of Chemical EngineeringJawaharlal Nehru Technological University AnantapurAnanthapuramuIndia
  4. 4.Department of Pharmaceutics, Centre for NanotechnologySri Venkateswara College of PharmacyChittoorIndia

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