• Antibiotic delivery by liposomes from prokaryotic microorganisms: Similia cum similis works better 

      Colzi, Ilaria; Troyan, Anna N.; Perito, Brunella; Casalone, Enrico; Romoli, Riccardo; Pieraccini, Giuseppe; Skalko-Basnet, Natasa; Adessi, Alessandra; Rossi, Federico; Gonnelli, Cristina; Ristori, Sandra (Journal article; Preprint; Tidsskriftartikkel; Peer reviewed; Manuskript, 2015-06-25)
      To date the effectiveness of antibiotics is undermined by microbial resistance, threatening public health worldwide. Enhancing the efficacy of the current antibiotic arsenal is an alternative strategy. The administration of antimicrobials encapsulated in nanocarriers, such as liposomes, is considered a viable option, though with some drawbacks related to limited affinity between conventional liposomes ...
    • Azithromycin-liposomes as a novel approach for localized therapy of cervicovaginal bacterial infections 

      Vanic, Zeljka; Rukavina, Zora; Manner, Suvi; Fallarero, Adyary; Uzelac, Lidija; Kralj, Marijeta; Amidzic Klaric, Danijela; Bogdanov, Anita; Raffai, Timea; Virok, Deszo Peter; Filipovic-Grcic, Jelena; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-30)
      <p><i>Background - </i>Efficient localized cervicovaginal antibacterial therapy, enabling the delivery of antibiotic to the site of action at lower doses while escaping systemic drug effects and reducing the risk of developing microbial resistance, is attracting considerable attention. Liposomes have been shown to allow sustained drug release into vaginal mucosa and improve delivery of antibiotics ...
    • Beta-glucan-loaded nanofiber dressing improves wound healing in diabetic mice 

      Grip, Jostein; Engstad, Rolf Einar; Skjæveland, Ingrid; Skalko-Basnet, Natasa; Isaksson, Johan; Basnet, Purusotam; Holsæter, Ann Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-01)
      The increased prevalence of chronic wounds requires novel treatment options. The aim of this study was to develop a beta-glucan (βG)-loaded nanofiber wound dressing. Nanofibers were prepared using the needle-free Nanospider™ technology, an electrospinning method which enables the production of nanofibers at an industrial scale. The βG was selected as active ingredient based on its confirmed wound ...
    • Biofilm Responsive Zwitterionic Antimicrobial Nanoparticles to Treat Cutaneous Infection 

      Obuobi, Sybil Akua Okyerewa; Phung, Anna Ngoc; Julin, Kjersti; Johannessen, Mona; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-16)
      To avert the poor bioavailability of antibiotics during S. aureus biofilm infections, a series of zwitterionic nanoparticles containing nucleic acid nanostructures were fabricated for the delivery of vancomycin. The nanoparticles were prepared with three main lipids: (i) neutral (soy phosphatidylcholine; P), (ii) positively charged ionizable (1,2-dioleyloxy-3-dimethylaminopropane; D), and (iii) ...
    • Biologics: the role of delivery systems in improved therapy 

      Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-03-19)
      The beginning of the 21st century saw numerous protein and peptide therapeuticals both on the market and entering the final stages of clinical studies. They represent a new category of biologically originated drugs termed biologics or biologicals. Their main advantages over conventional drugs can be summarized by their high selectivity and potent therapeutic efficacy coupled with limited side ...
    • Ceramide-containing liposomes with doxorubicin: time and cell-dependent effect of C6 and C12 ceramide 

      Øverbye, Anders; Holsæter, Ann Mari; Fusser, Markus; Skalko-Basnet, Natasa; Iversen, Tore Geir; Torgersen, Maria Lyngaas; Sønstevold, Tonje; Engebråten, Olav; Flatmark, Kjersti; Mælandsmo, Gunhild; Skotland, Tore; Sandvig, Kirsten (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-12)
      Doxorubicin, a widely used chemotherapeutic drug, has several potential high- risk side effects including cardiomyopathy. Furthermore, cellular resistance to this drug develops with time. By using liposomes as carrier vesicles both the side effects and drug resistance might be avoided. In this study we have investigated the cytotoxic effect of doxorubicin encapsulated in liposomes with and ...
    • Chapter 11 - Hydrogels as intrinsic antimicrobials 

      Vanić, Željka; Skalko-Basnet, Natasa (Chapter; Bokkapittel, 2019-10-25)
      Hydrogels are currently applied as the vehicles for drugs or active substances, rather than the active contributors to therapeutic activities. With increasing challenges related to antimicrobial resistance against many antibiotics, natural origin hydrogels have become attractive as more than just vehicles. Although many natural polymers exhibit intrinsic antimicrobial properties, these properties ...
    • Characterization of Liposomes Using Quantitative Phase Microscopy (QPM) 

      Cauzzo, Jennifer; Jayakumar, Nikhil; Ahluwalia, Balpreet Singh; Ahmad, Azeem; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-21)
      The rapid development of nanomedicine and drug delivery systems calls for new and effective characterization techniques that can accurately characterize both the properties and the behavior of nanosystems. Standard methods such as dynamic light scattering (DLS) and fluorescent-based assays present challenges in terms of system’s instability, machine sensitivity, and loss of tracking ability, among ...
    • Chitosan in Mucoadhesive Drug Delivery: Focus on Local Vaginal Therapy 

      Andersen, Toril; Bleher, Stefan; Flaten, Gøril Eide; Tho, Ingunn; Mattsson, Sofia; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-01-07)
      Mucoadhesive drug therapy destined for localized drug treatment is gaining increasing importance in today’s drug development. Chitosan, due to its known biodegradability, bioadhesiveness and excellent safety profile offers means to improve mucosal drug therapy. We have used chitosan as mucoadhesive polymer to develop liposomes able to ensure prolonged residence time at vaginal site. Two types of ...
    • Chitosan-based delivery system enhances antimicrobial activity of chlorhexidine 

      Hemmingsen, Lisa Myrseth; Panchai, Pimmat; Julin, Kjersti; Basnet, Purusotam; Nystad, Mona; Johannessen, Mona; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-29)
      Infected chronic skin wounds and other skin infections are increasingly putting pressure on the health care providers and patients. The pressure is especially concerning due to the rise of antimicrobial resistance and biofilm-producing bacteria that further impair treatment success. Therefore, innovative strategies for wound healing and bacterial eradication are urgently needed; utilization ...
    • Chitosan-Based Nanomedicine to Fight Genital Candida Infections: Chitosomes 

      Andersen, Toril; Mishchenko, Ekaterina; Flaten, Gøril Eide; Sollid, Johanna U Ericson; Mattsson, Sofia; Tho, Ingunn; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03-04)
      Vaginal infections are associated with high recurrence, which is often due to a lack of efficient treatment of complex vaginal infections comprised of several types of pathogens, especially fungi and bacteria. Chitosan, a mucoadhesive polymer with known antifungal effect, could offer a great improvement in vaginal therapy; the chitosan-based nanosystem could both provide antifungal effects and ...
    • Chitosomes-In-Chitosan Hydrogel for Acute Skin Injuries: Prevention and Infection Control 

      Hemmingsen, Lisa Myrseth; Julin, Kjersti; Ahsan, Luqman; Basnet, Purusotam; Johannessen, Mona; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-12)
      Burns and other skin injuries are growing concerns as well as challenges in an era of antimicrobial resistance. Novel treatment options to improve the prevention and eradication of infectious skin biofilm-producing pathogens, while enhancing wound healing, are urgently needed for the timely treatment of infection-prone injuries. Treatment of acute skin injuries requires tailoring of formulation to ...
    • Curcumin-In-Deformable Liposomes-In-ChitosanHydrogel as a Novel Wound Dressing 

      Ternullo, Selenia; Schulte Werning, Laura; Holsæter, Ann Mari; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-20)
      A liposomes-in-hydrogel system as an advanced wound dressing for dermal delivery of curcumin was proposed for improved chronic wound therapy. Curcumin, a multitargeting poorly soluble active substance with known beneficial properties for improved wound healing, was incorporated in deformable liposomes to overcome its poor solubility. Chitosan hydrogel served as a vehicle providing superior wound ...
    • Curcumin: An Anti-Inflammatory Molecule from a Curry Spice on the Path to Cancer Treatment 

      Basnet, Purusotam; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Oxidative damage and inflammation have been pointed out in preclinical studies as the root cause of cancer and other chronic diseases such as diabetes, hypertension, Alzheimer’s disease, etc. Epidemiological and clinical studies have suggested that cancer could be prevented or significantly reduced by treatment with anti-oxidant and anti-inflammatory drugs, therefore, curcumin, a principal component ...
    • Deformable liposomes for skin therapy with human epidermal growth factor: The effect of liposomal surface charge 

      Ternullo, Selenia; Basnet, Purusotam; Holsæter, Ann Mari; Flaten, Gøril Eide; de Weerd, Louis; Skalko-Basnet, Natasa (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-10-07)
      The topical administration of exogenous human epidermal growth factor (hEGF) is a promising approach for improved chronic wound therapy. To develop therapeutically superior hEGF formulation, we prepared hEGF-containing neutral (NDLs), cationic (CDLs) and anionic (ADLs) deformable liposomes (DLs), respectively, since it is expected that the liposomal surface charge can affect both the liposomal ...
    • Dermal Application of Chloramphenicol - The Effect of Liposomes and Chitosan Hydrogel Formulations on ex vivo Permeation and Antimicrobial Activity 

      Holsæter, Ann Mari; Ingebrigtsen, Sveinung Gaarden; Skalko-Basnet, Natasa (Conference object; Konferansebidrag, 2017)
      Liposomes solubilize lipophilic drugs in the phospholipid membrane, and entrap hydrophilic drugs in its aqueous core. These vesicles provide a sustained- and targeted- drug release, and protect from degradation. Liposomes retain the drug onto/in the skin and improve skin drug deposition. Due to their liquid nature, a secondary vehicle, such as a hydrogel, is needed to obtain a necessary retention ...
    • Development and optimization of a new processing approach for manufacturing topical liposomes-in-hydrogel drug formulations by dual asymmetric centrifugation 

      Ingebrigtsen, Sveinung Gaarden; Skalko-Basnet, Natasa; Holsæter, Ann Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-24)
      Objectives: The objective of the present study was to utilize dual asymmetric centrifugation (DAC) as a novel processing approach for the production of liposomes-in-hydrogel formulations. <br>Materials and Methods: Lipid films of phosphatidylcholine, with and without chloramphenicol (CAM), were hydrated and homogenized by DAC to produce liposomes in the form of vesicular phospholipid gels with a ...
    • Development of a novel beta-glucan supplemented hydrogel spray formulation and wound healing efficacy in a db/db diabetic mouse model 

      Grip, Jostein; Steene, Erik; Engstad, Rolf Einar; Hart, Jeff; Bell, Andrea; Skjærveland, Ingrid; Basnet, Purusotam; Skalko-Basnet, Natasa; Holsæter, Ann Mari (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-30)
      To relieve the severe economic and social burdens and patient suffering caused by the increasing incidence of chronic wounds, more effective treatments are urgently needed. In this study, we focused on developing a novel sprayable wound dressing with the active ingredient β-1,3/1,6-glucan (βG). Since βG is already available as the active ingredient in a commercial wound healing product provided as ...
    • Docetaxel Liposomes - A formulation Screening Study 

      Karlsen, Iselin; Skalko-Basnet, Natasa; Holsæter, Ann Mari (Conference object; Konferansebidrag, 2019)
      <p>Docetaxel (DOC) is a potent anticancer drug with several limitations, including poor solubility and the reported serious side effects, attributed to either the drug itself or the solvent used. Thus, it is interesting to entrap the drug into liposomes in order to solubilize the drug and improve the therapeutic outcome. <p>The fist aim of this study was to establish a small-scale screening method ...
    • Drug loading to mesoporous silica carriers by solvent evaporation: A comparative study of amorphization capacity and release kinetics 

      Soltys, Marek; Zuza, David; Boleslavska, Tereza; Akhlasova, Sarah Machac; Balouch, Martin; Kovacik, Pavel; Beranek, Josef; Skalko-Basnet, Natasa; Flaten, Gøril Eide; Stefanec, Frantisek (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-08)
      The sorption of poorly aqueous soluble active pharmaceutical ingredients (API) to mesoporous silica carriers is an increasingly common formulation strategy for dissolution rate enhancement for this challenging group of substances. However, the success of this approach for a particular API depends on an array of factors including the properties of the porous carrier, the loading method, or the attempted ...