Neslihan Üstündağ Okur

Dr. Neslihan Üstündağ Okur

Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 November 2020 in Asian Journal of Pharmaceutical Sciences
Verified
Journal Article
Open access
MOMehmet Evren Okur
Mehmet Evren Okur
IKIoannis Karantas
Ioannis Karantas
ZŞZeynep Şenyiğit
Zeynep Şenyiğit
Neslihan Üstündağ OkurNeslihan Üstündağ Okur
Neslihan Üstündağ Okur
Panoraia I. SiafakaPanoraia I. Siafaka
Panoraia I. Siafaka
Wound healing is an unmet therapeutic challenge among medical society since wound assessment and management is a complex procedure including several factors playing major role in healing process. Wounds can mainly be categorized as acute or chronic. It is well referred that the acute wound displays normal wound physiology while healing, in most cases, is seemed to progress through the normal phases of wound healing. On the other hand, a chronic wound is physiologically impaired. The main problem in wound management is that the majority of wounds are colonized with microbes, whereas this does not mean that all wounds will be infected. In this review, we address the problems that clinicians face to manage while treat acute and chronic wounds. Moreover, we demonstrate the pathophysiology, etiology, prognosis and microbiology of wounds. We further introduce the state of art in pharmaceutical technology field as part of wound management aiming to assist health professionals to overcome the current implications on wound assessment. In addition, authors review researches which included the use of gels and dermal films as wound healing agents. It can be said that natural and synthetic drugs or carriers provide promising solutions in order to meet the wound management standards. However, are the current strategies as desirable as medical society wish?

Verified
Journal Article
Open access
PDF file
Panoraia I. SiafakaPanoraia I. Siafaka
Panoraia I. Siafaka
Neslihan Üstündağ OkurNeslihan Üstündağ Okur
Neslihan Üstündağ Okur
EKEvangelos Karavas
Evangelos Karavas
Dimitrios BikiarisDimitrios Bikiaris
Dimitrios Bikiaris
Nanocarriers, due to their unique features, are of increased interest among researchers working with pharmaceutical formulations. Polymeric nanoparticles and nanocapsules, involving non-toxic biodegradable polymers, liposomes, solid lipid nanoparticles, and inorganic–organic nanomaterials, are among the most used carriers for drugs for a broad spectrum of targeted diseases. In fact, oral, injectable, transdermal-dermal and ocular formulations mainly consist of the aforementioned nanomaterials demonstrating promising characteristics such as long circulation, specific targeting, high drug loading capacity, enhanced intracellular penetration, and so on. Over the last decade, huge advances in the development of novel, safer and less toxic nanocarriers with amended properties have been made. In addition, multifunctional nanocarriers combining chemical substances, vitamins and peptides via coupling chemistry, inorganic particles coated by biocompatible materials seem to play a key role considering that functionalization can enhance characteristics such as biocompatibility, targetability, environmental friendliness, and intracellular penetration while also have limited side effects. This review aims to summarize the “state of the art” of drug delivery carriers in nanosize, paying attention to their surface functionalization with ligands and other small or polymeric compounds so as to upgrade active and passive targeting, different release patterns as well as cell targeting and stimuli responsibility. Lastly, future aspects and potential uses of nanoparticulated drug systems are outlined.


1 January 2021 in Asian Journal of Pharmaceutical Sciences
Verified
Journal Article
Open access
PSPanoraia I. Siafaka
Panoraia I. Siafaka
Neslihan Üstündağ OkurNeslihan Üstündağ Okur
Neslihan Üstündağ Okur
IKIoannis D. Karantas
Ioannis D. Karantas
MOMehmet Evren Okur
Mehmet Evren Okur
EGEvren Gundogdu
Evren Gundogdu
In the last decade, the use of nanotheranostics as emerging diagnostic and therapeutic tools for various diseases, especially cancer, is held great attention. Up to date, several approaches have been employed in order to develop smart nanotheranostics, which combine bioactive targeting on specific tissues as well as diagnostic properties. The nanotheranostics can deliver therapeutic agents by concomitantly monitor the therapy response in real-time. Consequently, the possibility of over- or under-dosing is decreased. Various non-invasive imaging techniques have been used to quantitatively monitor the drug delivery processes. Radiolabeling of nanomaterials is widely used as powerful diagnostic approach on nuclear medicine imaging. In fact, various radiolabeled nanomaterials have been designed and developed for imaging tumors and other lesions due to their efficient characteristics. Inorganic nanoparticles as gold, silver, silica based nanomaterials or organic nanoparticles as polymers, carbon based nanomaterials, liposomes have been reported as multifunctional nanotheranostics. In this review, the imaging modalities according to their use in various diseases are summarized, providing special details for radiolabeling. In further, the most current nanotheranostics categorized via the used nanomaterials are also summed up. To conclude, this review can be beneficial for medical and pharmaceutical society as well as material scientists who work in the field of nanotheranostics since they can use this research as guide for producing newer and more efficient nanotheranostics.

1 July 2019 in Saudi Pharmaceutical Journal
Verified
Journal Article
Open access
Neslihan Üstündağ OkurNeslihan Üstündağ Okur
Neslihan Üstündağ Okur
NHNesrin Hökenek
Nesrin Hökenek
MOMehmet Evren Okur
Mehmet Evren Okur
SASule Ayla
Sule Ayla
AYAyşegül Yoltaş
Ayşegül Yoltaş
ECErdal Cevher
Erdal Cevher
In this study, novel adhesive films were prepared for Mupirocin dermal delivery. Natural polymers as chitosan, sodium alginate and carbopol were used for films development to evaluate possible interactions and drug release properties. Solvent evaporation method was used for films preparation. Preliminary studies involved FT-IR spectroscopy and Scanning Electron Microscopy to specify interactions and morphology. Thickness, tensile strength and water uptake in phosphate buffer saline were evaluated whereas in vitro release studies were also performed. In vitro drug release studies demonstrated that mupirocin release was improved. Ex vivo bioadhesion and permeation studies using Balb-c mice were performed to check the suitability of the films. Antimicrobial ability was evaluated by agar well diffusion tests. Finally, excisional wound model applied to test the wound healing effect and evaluated macroscopic and histopathologically. One formulation was found more effective compared to the market product for wound healing at Balb-c mice.

1 February 2019 in Journal of Drug Delivery Science and Technology
Verified
Journal Article
Closed access
Neslihan Üstündağ OkurNeslihan Üstündağ Okur
Neslihan Üstündağ Okur
VYVildan Yozgatlı
Vildan Yozgatlı
MOMehmet Evren Okur
Mehmet Evren Okur
AYAysegül Yoltaş
Aysegül Yoltaş
Panoraia I. SiafakaPanoraia I. Siafaka
Panoraia I. Siafaka