Yavuz Nuri Ertas

Erciyes Üniversitesi

The application of nanoarchitectures in cancer therapy seems to be beneficial for the delivery of anti-tumor drugs. In recent years, attempts have been made to reverse drug resistance, one of the factors threatening the lives of cancer patients worldwide. Gold nanoparticles (GNPs) are metal nanostructures with a variety of advantageous properties,...

Colorectal cancer (CRC) is a dangerous form of cancer that affects the gastrointestinal tract. It is a major global health concern, and the aggressive behavior of tumor cells makes it difficult to treat, leading to poor survival rates for patients. One major challenge in treating CRC is the metastasis, or spread, of the cancer, which is a major cau...

Plantago psyllium L. seed gum (PPSG)/gelatin nanocomposites containing Cuminum cyminum essential oil (CCEO) were prepared via electrospinning, and the antibacterial properties of the electrospun nanofibers were assessed against Staphylococcus aureus. The nanoemulsion was prepared by adding CCEO to the PPSG/gelatin mixture and sonicated. Uniform nan...

Radiation therapy has demonstrated promising effectiveness against several types of cancers. X-ray radiation therapy can be made further effective by utilizing nanoparticles of high-atomic-number (high-Z) materials that act as radiosensitizers. Here, in purpose of maximizing the radiation therapy within tumors, bovine serum albumin capped gadoliniu...

Noble metals as high atomic number elements can localize X-ray radiation within tumor cells by exploiting different mechanisms. Here, alginate (Alg)-coated platinum nanoparticles (Pt@Alg) were synthesized, characterized, and implemented as a radiosensitizer to enhance X-ray therapeutic efficacy in breast cancer in vitro and in vivo. Alg not only im...

Nanotechnology is a growing field, with many potential biomedical applications of nanomedicine for the treatment of different diseases, particularly cancer, on the horizon. Graphene oxide (GO) nanoparticles can act as carbon-based nanocarriers with advantages such as a large surface area, good mechanical strength, and the capacity for surface modif...

Multifunctional nanoplatforms based on novel bimetallic nanoparticles have emerged as effective radiosensitizers owing to their potential capability in cancer cells radiosensitization. Implementation of chemotherapy along with radiotherapy, known as synchronous chemoradiotherapy (SCRT), can augment the treatment efficacy. Herein, a tumor targeted n...

Doxorubicin (DOX) is an anticancer drug which can effectively inhibit the growth of cancer cells and aids the immune-mediated elimination of tumoral cells. Developing a new technique for analysis of DOX in clinical fluids is highly required. Here, a novel electrochemical sensor was designed using tryptophan (Trp)/(polyethylene glycol)PEGylated-CoFe...

Troponin I as a particular and major biomarker of cardiac failure is released to blood demonstrating hurt of myocardial cells. Unfortunately, troponin I detection in the first hours of acute myocardial infarction usually faces with most negligence. Therefore, developments of point of care devices such as lateral flow strips are highly required for...

Poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs) are commonly used for drug delivery because of their favored biocompatibility and suitability for sustained and controlled drug release. To prolong NP circulation time, enable target-specific drug delivery and overcome physiological barriers, NPs camouflaged in cell membranes have been develo...

The increasing significance of computed tomography (CT) which is one of the most widely used radiological methods in biomedical imaging, has accelerated the development of nanoparticles as next-generation CT contrast agents. Nanoparticles are predicted to play a significant role in the future of medical diagnostics due to their several benefits ove...

Epithelial-to-mesenchymal transition (EMT) is a process that involves the transformation of polarized epithelial cells to attain a mesenchymal phenotype that presents an elevated migratory potential, invasiveness, and antiapoptotic properties. Many studies have demonstrated that EMT is a prominent event that is associated with embryogenesis, tumor...

CuFe2O4, ZnFe2O4, and MnFe2O4 ferrite nanoparticles (NPs) have been synthesized through auto composition sol–gel method, and citric acid was used as the chelating agent. Phase analysis of nanoparticles confirmed the pure cubic spinel structure. The morphology and elemental composition verified the presence of all the elements in prepared samples an...

Due to the increased incidence and population growth which has been leading to growing number of cases worldwide, early diagnosis and treatment of cancer is crucial. Low density cancer tissue cannot be diagnosed before progressing toward a metastatic stage. Thus, theranostic systems play a significant role in assisting timely diagnosis and treatmen...

Silk produced by silkworms or spiders offers biocompatibility, biodegradability, stability, and biomechanical strength, making it an excellent biomaterial for wound bandages/dressings and skin grafts. Silk scaffolds are also bioactive matrices necessary to restore the healing cascade and barrier properties that induce skin organogenesis in chronic...

Diabetes is one of the main problems of our community that has been the reason for 1.5 million people in 2019. Raising blood sugar or hyperglycemia is an effect of uncontrolled diabetes which can lead to serious and dangerous health issues. Insulin is a hormone that regulates the level of sugar in the human blood. Therefore, reliable and fast quant...

Janus heterostructures based on bimetallic nanoparticles have emerged as effective radiosensitizers owing to their radiosensitization capabilities in cancer cells. In this context, this study aims at developing a novel bimetallic nanoradiosensitizer, Bi2S3-Fe3O4, to enhance tumor accumulation and promote radiation-induced DNA damage while reducing...

Cochlear implants are neural implant devices that aim to restore hearing in patients with severe sensorineural hearing impairment. Here, the main goal is to successfully place the electrode array in the cochlea to stimulate the auditory nerves through bypassing damaged hair cells. Several electrode and electrode array parameters affect the success...

Biofabrication of engineered cell-laden constructs and scaffolds is essential for tissue engineeringTissue Engineering and tissue modeling. ElectrospinningElectrospinning is a highly scalable technology to fabricate porous scaffolds with micro or nano-fibrous structure. Three-dimensional (3D) bioprinting has been recently developed for tissue engin...

Urological cancers are among the most common malignancies around the world. In particular, bladder cancer severely threatens human health due to its aggressive and heterogenous nature. Various therapeutic modalities have been considered for the treatment of bladder cancer although its prognosis remains unfavorable. It is perceived that treatment of...

The identification of agents that can reverse drug resistance in cancer chemotherapy, and enhance the overall efficacy is of great interest. Paclitaxel (PTX) belongs to taxane family that exerts an antitumor effect by stabilizing microtubules and inhibiting cell cycle progression. However, PTX resistance often develops in tumors due to the overexpr...

Amyotrophic Lateral Sclerosis (ALS) is a terminal neuro-degenerative disorder that is clinically recognized as a gradual degeneration of the upper and lower motor neurons, with an average duration of 3 to 5 years from initiation of symptoms to death. The mechanisms underlying the pathogenesis and progression of the disease are multifactorial. There...

Ischemia is a pathological process in which blood supply to a particular organ is temporarily interrupted resulting in disturbed biological function and homeostasis of local tissues. Following ischemia, reperfusion and reoxygenation may occur which further worsens oxidative stress-mediated damage in cells and tissues. The combined processes are ref...

Brain tumors are responsible for high mortality and morbidity worldwide. The brain tumor treatment depends on identification of molecular pathways involved in progression and malignancy. Enhancer of zeste homolog 2 (EZH2) has obtained much attention in recent years in field of cancer therapy due to its aberrant expression and capacity in modulating...

Diabetes mellitus (DM) is considered as a main challenge in both developing and developed countries, as lifestyle has changed and its management seems to be vital. Type I and type II diabetes are the main kinds and they result in hyperglycemia in patients and related complications. The gene expression alteration can lead to development of DM and re...

Polyphenol-based materials have attracted wide-spread interest from academic and industrial communities because of their unique structure and physicochemical properties. Tannic acid (TA), as a polyphenolic phytochemical with high level of galloyl groups, interacts with various substances (proteins, polysaccharides, and metals) through several modes...

Advances in high-throughput sequencing over the past decades have led to the identification of thousands of non-coding RNAs (ncRNAs), which play a major role in regulating gene expression. One emerging class of ncRNAs is the natural antisense transcripts (NATs), the RNA molecules transcribed from the opposite strand of a protein-coding gene locus....

Implantable thermo‐responsive drug‐loaded magnetic nanofibers (NFs) have attracted great interest for localized thermo‐chemotherapy of cancer tissue/cells. From this perspective, smart polymeric electrospun NFs co‐loaded with magnetic nanoparticles (MNPs) and a natural polyphenol anticancer agent, curcumin (CUR), were developed to enhance the local...

Tissue engineering has evolved to provide ways to construct tissues primarily aiming at replacing lost or damaged tissues or improving function. It has been classically developed using ex vivo means in which cells are generally cultured with biomaterials and subsequently engineered constructs are transplanted into the body. However, this approach i...

Sustained external supply of oxygen (O2) to engineered tissue constructs is important for their survival in the body while angiogenesis is taking place. In the recent years, the trend towards the fabrication of various O2-generating materials that can provide prolonged and controlled O2 source to the large volume tissue constructs resulted in preve...

Recently, microRNAs (miRNAs) have shown to be potential therapeutic, diagnostic and prognostic targets in disease therapy. These endogenous non-coding RNAs contribute to regulation of different cellular events that are necessary for maintaining physiological condition. Dysregulation of miRNAs is correlated with development of various pathological e...

Cancer stem cells (CSCs) are a subpopulation of cells that can initiate, self-renew, and sustain tumor growth. CSCs are responsible for tumor metastasis, recurrence, and drug resistance in cancer therapy. CSCs reside within a niche maintained by multiple unique factors in the microenvironment. These factors include hypoxia, excessive levels of angi...

Hydrogels are important biomaterials that have several applications in drug and cell delivery, tissue engineering, three-dimensional (3D) printing and more recently, in sensing and actuating applications. With the advent of self-healing hydrogels, it is becoming possible to have smarter materials with sustainable mechanical properties under stress...

Recently emerged novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the resulting corona virus disease 2019 (COVID-19) led to urgent search for methods to prevent and treat COVID-19. Among important disciplines that were mobilized is the biomaterials science and engineering. Biomaterials offer a range of possibilities to develop...

Coronavirus 2019 (COVID-19), as an emerging infectious disease, has caused significant mortality and morbidity along with socioeconomic impact. No effective treatment or vaccine has been approved yet for this pandemic disease. Cutting-edge tools, especially nanotechnology, should be strongly considered to tackle this virus. This review aims to prop...

In article number 1901794, Ali Khademhosseini, Nureddin Ashammakhi, and co‐workers, present a novel approach to develop oxygenated bioinks, using oxygen generating calcium peroxide particles. Cardiomyocyte‐laden oxygenated and 3D printed tissue constructs developed in this study can significantly support cell survival when applied in hypoxic condit...

Cell survival during the early stages of transplantation and before new blood vessels formation is a major challenge in translational applications of 3D bioprinted tissues. Supplementing oxygen (O2) to transplanted cells via an O2 generating source such as calcium peroxide (CPO) is an attractive approach to ensure cell viability. Calcium peroxide a...

Hyperpolarization techniques are key to extending the capabilities of MRI for the investigation of structural, functional and metabolic processes in vivo. Recent heterogeneous catalyst development has produced high polarization in water using parahydrogen with biologically relevant contrast agents. Here we introduce a novel heterogeneous ligand‐sta...

Bulk-form nanocomposites of TiC-reinforced 316L stainless steel matrix were fabricated by selective laser melting (SLM), an emerging powder-bed additive manufacturing technique allowing direct fabrication of usable end-products, using various volumetric laser energy densities (η). The microstructural features of the arrangements and sizes of TiC na...

Cd3As2 is a Dirac semimetal that is a 3D analog of graphene. We investigated the local structure and nuclear-spin dynamics in Cd3As2 via ¹¹³Cd NMR. The wideline spectrum of the static sample at 295 K is asymmetric and its features are well described by a two-site model with the shielding parameters extracted via Herzfeld-Berger analysis of the magi...

Parahydrogen induced polarization (PHIP) is a method for enhancing NMR sensitivity. The pairwise addition of parahydrogen in aqueous medium by heterogeneous catalysts can lead to applications in chemical and biological systems. Polarization enhancement can be transferred from 1H to 13C for longer lifetimes by use of zero field cycling. In this work...

Gadolinium (Gd) metal is of great interest in applications such as contrast-enhanced MRI and magnetic cooling. However, it is generally difficult to produce oxide-free and highly magnetic Gd nanoparticles due to the aggressively reactive nature of Gd with oxygen. Herein, we utilized a nanofabrication route and optimization of experimental condition...

para-Hydrogen induced polarization is a technique of magnetic resonance hyperpolarization utilizing hydrogen's para-spin state for generating signal intensities at magnitudes far greater than state-of-the-art magnets. Platinum nanoparticle-catalysts with cysteine-capping are presented. The measured polarization is the highest reported to date in wa...

Polyaniline (PANI)/copper oxide (CuO), poly(3,4-ethylenedioxythiophene) (PEDOT)/CuO and polypyrrole (PPy)/CuO have been synthesized electrochemically on glassy carbon electrode in sodium dodecyl sulfate in sulfuric acid solution as an electroactive material. To our best knowledge, the first report on comparison of supercapacitor behaviors of PANI/C...

Among the elements in the periodic table, gadolinium (Gd) has the highest number of unpaired electrons. However, the potential of this rare-earth metal has not yet been fully realized due to challenges in its chemical synthesis, namely, its high reduction potential, leading to the formation of oxides with suboptimal properties. This problem is also...

Vapor-condensed nanolenses make label-free lensfree holographic microscopy sensitive to individual particles 40 nm and larger. Detected signals correlate with particle size with accuracy ±11 nm. Automated image processing measures >105 particles within a single field-of-view.

Sizing individual nanoparticles and dispersions of nanoparticles provides invaluable information in applications such as nanomaterial synthesis, air and water quality monitoring, virology, and medical diagnostics. Several conventional nanoparticle sizing approaches exist; however, there remains a lack of high-throughput approaches that are suitable...

Para-hydrogen-induced polarization (PHIP) is a technique capable of producing spin polarization at a magnitude far greater than state-of-the-art magnets. A significant application of PHIP is to generate contrast agents for biomedical imaging. Clinically viable and effective contrast agents not only require high levels of polarization but heterogene...

We propose microfluidics as a useful platform for reconfigurable electromagnetic metamaterials. Microfluidic split-ring resonators (MF-SRRs) are fabricated inside a flexible elastomeric material by employing rapid prototyping. The transmission measurements performed for mercury-injected MF-SRR exhibits sharp magnetic resonances at microwave wavelen...