Yazar "Ahmadi, Sepideh" seçeneğine göre listele

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    Advances in aptamer-based drug delivery vehicles for cancer therapy
    (Elsevier, 2022) Ghasemi, Kousar; Darroudi, Mahdieh; Rahimmanesh, Ilnaz; Ghomi, Matineh; Hassanpour, Mahnaz; Sharifi, Esmaeel; Yousefiasl, Satar; Ahmadi, Sepideh; Zarrabi, Ali; Borzacchiello, Assunta; Rabiee, Mohammad; Paiva-Santos, Ana Cláudia; Rabiee, Navid
    Overall, aptamers are special classes of nucleic acid-based macromolecules that are beginning to investigate because of their capability of avidity binding to a specific target for clinical use. Taking advantage of target-specific medicine led to more effective therapeutic and limitation of side effects of drugs. Herein, we discuss several aptamers and their binding capability and capacity for selecting tumor biomarkers and usage of them as targeting ligands for the functionalization of nanomaterials. We review recent applications based on aptamers and several nanoparticles to rise efficacy and develop carrier systems such as graphene oxide, folic acid, gold, mesopores silica, and various polymers and copolymer, polyethylene glycol, cyclodextrin, chitosan. The nanocarriers have been characterized by particle size, zeta potential, aptamer conjugation, and drug encapsulation efficiency. Hydrodynamic diameter and Zeta potential can used in order to monitor aptamers' crosslinking, in-vitro drug release, intracellular delivery of nanocarriers, and cellular cytotoxicity assay. Also, they are studied for cellular uptake and internalization to types of cancer cell lines such as colorectal, breast, prostate, leukemia and etc. The results are investigated in in-vivo cytotoxicity assay and cell viability assay. Targeted cancer therapy seems a good and promising strategy to overcome the systemic toxicity of chemotherapy.
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    Customizing nano-chitosan for sustainable drug delivery
    (PMC, 2022) Mostafa Saeedi 1, Omid Vahidi 1, Mohammadreza Moghbeli 1, Sepideh Ahmadi 2, Mohsen Asadnia 3, Omid Akhavan 4, Farzad Seidi 5, Mohammad Rabiee 6, Mohammad Reza Saeb 7, Thomas J Webster 8, Rajender S Varma 9, Esmaeel Sharifi 10, Ali Zarrabi 11, Navid Rabiee 12 Affiliations collapse; Saeedi, Mostafa; Vahidi, Omid; Moghbeli, Mohammadreza; Ahmadi, Sepideh; Asadnia, Mohsen; Akhavan, Omid; Seidi, Farzad; Rabiee, Mohammad; Saeb, Mohammad Reza; Webster, Thomas J.; Zarrabi, Ali; Rabiee, Navid; Varma, Rajender S.; Sharifi, Esmaeel
    Chitosan is a natural polymer with acceptable biocompatibility, biodegradability, and mechanical stability; hence, it has been widely appraised for drug and gene delivery applications. However, there has been no comprehensive assessment to tailor-make chitosan cross-linkers of various types and functionalities as well as complex chitosan-based semi- and full-interpenetrating networks for drug delivery systems (DDSs). Herein, the various fabrication methods developed for chitosan hydrogels are deliberated, including chitosan crosslinking with and without diverse cross-linkers. Tripolyphosphate, genipin and multi-functional aldehydes, carboxylic acids, and epoxides are common cross-linkers used in developing biomedical chitosan for DDSs. Methods deployed for modifying the properties and performance of chitosan hydrogels, via their composite production (semi- and full-interpenetrating networks), are also cogitated here. In addition, recent advances in the fabrication of advanced chitosan hydrogels for drug delivery applications such as oral drug delivery, transdermal drug delivery, and cancer therapy are discussed. Lastly, thoughts on what is needed for the chitosan field to continue to grow is also debated in this comprehensive review article
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    Magnetic nanocomposites for biomedical applications
    (Elsevier B.V., 2022) Naghdi, Mina; Ghovvati, Mahsa; Rabiee, Navid; Ahmadi, Sepideh; Abbariki, Nikzad; Sojdeh, Soheil; Ojaghi, Amirhossein; Bagherzadeh, Mojtaba; Akhavan, Omid; Sharifi, Esmaeel; Rabiee, Mohammad; Saeb, Mohammad Reza; Bolouri, Keivan; Webster, Thomas J.; Zare, Ehsan Nazarzadeh; Zarrabi, Ali
    Tissue engineering and regenerative medicine have solved numerous problems related to the repair and regeneration of damaged organs and tissues arising from aging, illnesses, and injuries. Nanotechnology has further aided tissue regeneration science and has provided outstanding opportunities to help disease diagnosis as well as treat damaged tissues. Based on the most recent findings, magnetic nanostructures (MNSs), in particular, have emerged as promising materials for detecting, directing, and supporting tissue regeneration. There have been many reports concerning the role of these nano-building blocks in the regeneration of both soft and hard tissues, but the subject has not been extensively reviewed. Here, we review, classify, and discuss various synthesis strategies for novel MNSs used in medicine. Advanced applications of magnetic nanocomposites (MG-NCs), specifically magnetic nanostructures, are further systematically reviewed. In addition, the scientific and technical aspects of MG-NC used in medicine are discussed considering the requirements for the field. In summary, this review highlights the numerous opportunities and challenges associated with the use of MG-NCs as smart nanocomposites (NCs) in tissue engineering and regenerative medicine.
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    Mission impossible for cellular internalization: When porphyrin alliance with UiO-66-NH2 MOF gives the cell lines a ride
    (Elsevier, 2022) Ahmadi, Sepideh; Jajarmi, Vahid; Ashrafizadeh, Milad; Zarrabi, Ali; Haponiuk, Józef T.; Saeb, Mohammad Reza; Lima, Eder C.; Rabiee, Mohammad; Rabiee, Navid
    Is it possible to accelerate cell internalization by hybridization of nanomaterials? Herein we support the realization of using metal-organic frameworks (MOFs) with the assistance of rigid porphyrin structure (H2TMP) aimed at drug loading, drug release, relative cell viability, and targeted in vitro drug delivery. There are several MOFs, i.e., UiO-66-NH2 (125 ± 12.5 nm), UiO-66-NH2 @H2TMP (160 ± 14 nm), UiO-66-NH2 @H2TMP@DOX, and UiO-66-NH2 @H2TMP@DOX@RO were synthesized and characterized applying HEK-293, HT-29, MCF-7, and MCF-10A cell lines. MTT investigations proved a significantly higher relative cell viability for H2TMP-aided leaf-extract-coated nanocarriers (above 62 % relative cell viability). Furthermore, the rigid H2TMP structure improved drug loading capacity by 24 % through an enhanced hydrogen bond, van der Waals, and ?-? interactions. The in vitro targeted drug delivery experiments were conducted on HT-29 and MCF-7 cell lines. First, nanocarriers were treated with HT-29 cells, where UiO-66-NH2 @H2TMP@DOX@RO appeared as the best nanocarrier. Then, the selected nanocarrier was extracted from the HT-29 cell line and treated with the MCF-7 cell line. For the first time, the DOX remained inside the UiO-66-NH2 @H2TMP@DOX@RO after successful delivery to the HT-29 cell lines was observed on the MCF-7 cell line, and the second targeted drug delivery was performed. The results of this survey can enlighten the future ahead of cell internalization in MOF-based hybrid nanostructures. © 2022 Elsevier B.V.
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    Self-healing MXene-and graphene-based composites : properties and applications
    (Springer, 2023) Zarepour, Atefeh; Ahmadi, Sepideh; Rabiee, Navid; Zarrabi, Ali; Iravani, Siavash
    Today, self-healing graphene- and MXene-based composites have attracted researchers due to the increase in durability as well as the cost reduction in long-time applications. Different studies have focused on designing novel self-healing graphene- and MXene-based composites with enhanced sensitivity, stretchability, and flexibility as well as improved electrical conductivity, healing efficacy, mechanical properties, and energy conversion efficacy. These composites with self-healing properties can be employed in the field of wearable sensors, supercapacitors, anticorrosive coatings, electromagnetic interference shielding, electronic-skin, soft robotics, etc. However, it appears that more explorations are still needed to achieve composites with excellent arbitrary shape adaptability, suitable adhesiveness, ideal durability, high stretchability, immediate self-healing responsibility, and outstanding electromagnetic features. Besides, optimizing reaction/synthesis conditions and finding suitable strategies for functionalization/modification are crucial aspects that should be comprehensively investigated. MXenes and graphene exhibited superior electrochemical properties with abundant surface terminations and great surface area, which are important to evolve biomedical and sensing applications. However, flexibility and stretchability are important criteria that need to be improved for their future applications. Herein, the most recent advancements pertaining to the applications and properties of self-healing graphene- and MXene-based composites are deliberated, focusing on crucial challenges and future perspectives.