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    Efficient wound healing by antibacterial property: Advances and trends of hydrogels, hydrogel-metal NP composites and photothermal therapy platforms

    , Article Journal of Drug Delivery Science and Technology ; Volume 73 , 2022 ; 17732247 (ISSN) Ahmadian, Z ; Gheybi, H ; Adeli, M ; Sharif University of Technology
    Editions de Sante  2022
    Abstract
    Bacterial infection is one of the biggest challenges in wound healing and imposes enormous burden on patient and medical system. Moreover, multidrug resistant microorganisms (MDR) limit the usage of therapeutic agents including antibiotics for wound treatment. Hydrogels are three-dimensional networks that have emerged as efficient scaffolds for the treatment of infected wounds. In addition to their intrinsic antibacterial activities, hydrogels are able to load and release therapeutic agents to keep the efficient dose during wound healing process. At the same lines, incorporation of metal nanoparticles (NPs) into hydrogels boosts their antibacterial activity. Moreover, photothermal agents... 

    Cationic graphene oxide nanoplatform mediates miR-101 delivery to promote apoptosis by regulating autophagy and stress

    , Article International journal of nanomedicine ; Volume 13 , 2018 , Pages 5865-5886 ; 11782013 (ISSN) Assali, A ; Akhavan, O ; Mottaghitalab, F ; Adeli, M ; Dinarvand, R ; Razzazan, S ; Arefian, E ; Soleimani, M ; Atyabi, F ; Sharif University of Technology
    NLM (Medline)  2018
    Abstract
    Introduction: MicroRNA-101 (miR-101) is an intense cancer suppressor with special algorithm to target a wide range of pathways and genes which indicates the ability to regulate apoptosis, cellular stress, metastasis, autophagy, and tumor growth. Silencing of some genes such as Stathmin1 with miR-101 can be interpreted as apoptotic accelerator and autophagy suppressor. It is hypothesized that hybrid microRNA (miRNA) delivery structures based on cationized graphene oxide (GO) could take superiority of targeting and photothermal therapy to suppress the cancer cells  

    Zinc ferrite spinel-graphene in magneto-photothermal therapy of cancer

    , Article Journal of Materials Chemistry B ; Vol. 2, Issue. 21 , 2014 , p. 3306-3314 Akhavan, O ; Meidanchi, A ; Ghaderi, E ; Khoei, S ; Sharif University of Technology
    Abstract
    A magneto-photothermal therapy for cancer (in vitro photothermal therapy of prostate cancer cells and in vivo photothermal therapy of human glioblastoma tumors in the presence of an external magnetic field) was developed using superparamagnetic zinc ferrite spinel (ZnFe2O4)-reduced graphene oxide (rGO) nanostructures (with various graphene contents). In vitro application of a low concentration (10 μg mL-1) of the ZnFe 2O4-rGO (20 wt%) nanostructures under a short time period (∼1 min) of near-infrared (NIR) irradiation (with a laser power of 7.5 W cm-2) resulted in an excellent destruction of the prostate cancer cells, in the presence of a magnetic field (∼1 Tesla) used for localizing the... 

    Hyperthermia-induced protein corona improves the therapeutic effects of zinc ferrite spinel-graphene sheets against cancer

    , Article RSC Advances ; Vol. 4, issue. 107 , 2014 , p. 62557-62565 Hajipour, M. J ; Akhavan, O ; Meidanchi, A ; Laurent, S ; Mahmoudi, M ; Sharif University of Technology
    Abstract
    Superparamagnetic zinc ferrite spinel-graphene nanostructures were synthesized as potential therapeutic agents in the magnetic targeted photothermal therapy of cancer and/or drug delivery. The global temperature of the solution and the local temperature at the nanoparticle (NP) surface determine the protein corona composition/content, which in turn affects the biological effects of NPs and the corresponding physiological responses. Therefore, it is rational to hypothesize that spinel-graphene nanostructures may have distinct protein corona compositions and contents, and therapeutic and toxic effects under laser irradiation. To assess this hypothesis, the effects of laser irradiation on the... 

    Nanomaterials for photothermal and photodynamic cancer therapy

    , Article Applied Physics Reviews ; Volume 9, Issue 1 , 2022 ; 19319401 (ISSN) Nasseri, B ; Alizadeh, E ; Bani, F ; Davaran, S ; Akbarzadeh, A ; Rabiee, N ; Bahadori, A ; Ziaei, M ; Bagherzadeh, M ; Saeb, M. R ; Mozafari, M ; Hamblin, M. R ; Sharif University of Technology
    American Institute of Physics Inc  2022
    Abstract
    In recent years, the role of optically sensitive nanomaterials has become powerful moieties in therapeutic techniques and has become particularly emphasized. Currently, by the extraordinary development of nanomaterials in different fields of medicine, they have found new applications. Phototherapy modalities, such as photothermal therapy (PTT) by toxic heat generation and photodynamic therapy (PDT) by reactive oxygen species, are known as promising phototherapeutic techniques, which can overcome the limitations of conventional protocols. Moreover, nanomaterial-based PDT and PTT match the simultaneous immune therapy and increase the immune system stimulation resulting from the denaturation of... 

    Gold-based hybrid nanostructures: more than just a pretty face for combinational cancer therapy

    , Article Biophysical Reviews ; Volume 14, Issue 1 , 2022 , Pages 317-326 ; 18672450 (ISSN) Khafaji, M ; Bavi, O ; Zamani, M ; Sharif University of Technology
    Springer Science and Business Media Deutschland GmbH  2022
    Abstract
    The early diagnosis together with an efficient therapy of cancer is essential to treat cancer patients and to enhance their quality of life. The use of nanostructures, as a newer technology, has demonstrated proven benefits as efficient cancer theranostic agents in numerous recent studies. Having a tunable surface plasmon resonance, gold nanostructures have been the subject of many recent studies as excellent imaging and photothermal therapy agents. However, the potential cytotoxicity and weak stability of gold nanostructures necessitate further modifications using biocompatible materials for biological applications. Based on the composition of the final structure, these gold-based hybrid... 

    Inorganic nanomaterials for chemo/photothermal therapy: a promising horizon on effective cancer treatment

    , Article Biophysical Reviews ; Volume 11, Issue 3 , 2019 , Pages 335-352 ; 18672450 (ISSN) Khafaji, M ; Zamani, M ; Golizadeh, M ; Bavi, O ; Sharif University of Technology
    Springer Verlag  2019
    Abstract
    During the last few decades, nanotechnology has established many essential applications in the biomedical field and in particular for cancer therapy. Not only can nanodelivery systems address the shortcomings of conventional chemotherapy such as limited stability, non-specific biodistribution and targeting, poor water solubility, low therapeutic indices, and severe toxic side effects, but some of them can also provide simultaneous combination of therapies and diagnostics. Among the various therapies, the combination of chemo- and photothermal therapy (CT-PTT) has demonstrated synergistic therapeutic efficacies with minimal side effects in several preclinical studies. In this regard,... 

    Graphene nanomesh promises extremely efficient in vivo photothermal therapy

    , Article Small ; Volume 9, Issue 21 , 2013 , Pages 3593-3601 ; 16136810 (ISSN) Akhavan, O ; Ghaderi, E ; Sharif University of Technology
    2013
    Abstract
    Reduced graphene oxide nanomesh (rGONM), as one of the recent structures of graphene with a surprisingly strong near-infrared (NIR) absorption, is used for achieving ultraefficient photothermal therapy. First, by using TiO2 nanoparticles, graphene oxide nanoplatelets (GONPs) are transformed into GONMs through photocatalytic degradation. Then rGONMs functionalized by polyethylene glycol (PEG), arginine-glycine-aspartic acid (RGD)-based peptide, and cyanine 7 (Cy7) are utilized for in vivo tumor targeting and fluorescence imaging of human glioblastoma U87MG tumors having ανβ3 integrin receptors, in mouse models. The rGONM-PEG suspension (1 μg mL -1) exhibits about 4.2- and 22.4-fold higher NIR... 

    Graphene: Promises, facts, opportunities, and challenges in nanomedicine

    , Article Chemical Reviews ; Volume 113, Issue 5 , 2013 , Pages 3407-3424 ; 00092665 (ISSN) Mao, H. Y ; Laurent, S ; Chen, W ; Akhavan, O ; Imani, M ; Ashkarran, A. A ; Mahmoudi, M ; Sharif University of Technology
    2013
    Abstract
    Graphene, a two-dimensional (2D) sheet of sp2-hybridized carbon atoms packed into a honeycomb lattice, has led to an explosion of interest in the field of materials science, physics, chemistry, and biotechnology since the few-layers graphene (FLG) flakes were isolated from graphite in 2004. For an extended search, derivatives of nanomedicine such as biosensing, biomedical, antibacterial, diagnosis, cancer and photothermal therapy, drug delivery, stem cell, tissue engineering, imaging, protein interaction, DNA, RNA, toxicity, and so on were also added. Since carbon nanotubes are normally described as rolled-up cylinders of graphene sheets and the controllable synthesis of nanotubes is well... 

    Nontoxic concentrations of PEGylated graphene nanoribbons for selective cancer cell imaging and photothermal therapy

    , Article Journal of Materials Chemistry ; Volume 22, Issue 38 , 2012 , Pages 20626-20633 ; 09599428 (ISSN) Akhavan, O ; Ghaderi, E ; Emamy, H ; Sharif University of Technology
    2012
    Abstract
    Reduced graphene oxide nanoribbons functionalized by amphiphilic polyethylene glycol (rGONR-PEG) were applied to attach arginine-glycine-aspartic acid (RGD)-based peptide and cyanine dye 3 (cy3) for targeting ανβ3 integrin receptors on human glioblastoma cell line U87MG and its selective fluorescence imaging, respectively. The rGONR-PEG suspension with a concentration of 100 μg mL -1 showed ∼14 and 2.4-fold higher near infrared (NIR) absorption at 808 nm than GONR (with dimensions of ∼80 nm × 1 μm) and rGO-PEG sheets (with lateral dimensions of ∼2 μm), respectively. The rGONR-PEG-cy3-RGD exhibited highly efficient NIR photothermal therapy performance (concentrations ≥1.0 μg mL-1 resulted in... 

    The use of a glucose-reduced graphene oxide suspension for photothermal cancer therapy

    , Article Journal of Materials Chemistry ; Volume 22, Issue 27 , 2012 , Pages 13773-13781 ; 09599428 (ISSN) Akhavan, O ; Ghaderi, E ; Aghayee, S ; Fereydooni, Y ; Talebi, A ; Sharif University of Technology
    RSC  2012
    Abstract
    A single-step green method for effective reduction and functionalization of graphene oxide (GO) by glucose was developed. Then, efficacy of the glucose-reduced GO sheets in photothermal therapy of LNCaP prostate cancer cells was investigated in vitro. The GO suspension reduced and functionalized by glucose in the presence of Fe catalyst showed a biocompatible property with an excellent near-infrared (NIR) photothermal therapy efficiency better than hydrazine-reduced GO, single-wall and multi-wall carbon nanotube suspensions which even showed some levels of toxicities. For complete destruction of the cancer cells at some time intervals of NIR irradiation (e.g., 0.5 and 12 min with a power... 

    Doxorubicin/cisplatin-loaded superparamagnetic nanoparticles as a stimuli-responsive Co-delivery system for chemo-photothermal therapy

    , Article International Journal of Nanomedicine ; Volume 14 , 2019 , Pages 8769-8786 ; 11769114 (ISSN) Khafaji, M ; Zamani, M ; Vossoughi, M ; Iraji zad, A ; Sharif University of Technology
    Dove Medical Press Ltd  2019
    Abstract
    Introduction: To date, numerous iron-based nanostructures have been designed for cancer therapy applications. Although some of them were promising for clinical applications, few efforts have been made to maximize the therapeutic index of these carriers. Herein, PEGylated silica-coated iron oxide nanoparticles (PS-IONs) were introduced as multipurpose stimuli-responsive co-delivery nanocarriers for a combination of dual-drug chemotherapy and photothermal therapy. Methods: Superparamagnetic iron oxide nanoparticles were synthesized via the sonochemical method and coated by a thin layer of silica. The nanostructures were then further modified with a layer of di-carboxylate polyethylene glycol... 

    Doxorubicin/cisplatin-loaded superparamagnetic nanoparticles as a stimuli-responsive Co-delivery system for chemo-photothermal therapy

    , Article International Journal of Nanomedicine ; Volume 14 , 2019 , Pages 8769-8786 ; 11769114 (ISSN) Khafaji, M ; Zamani, M ; Vossoughi, M ; Iraji zad, A ; Sharif University of Technology
    Dove Medical Press Ltd  2019
    Abstract
    Introduction: To date, numerous iron-based nanostructures have been designed for cancer therapy applications. Although some of them were promising for clinical applications, few efforts have been made to maximize the therapeutic index of these carriers. Herein, PEGylated silica-coated iron oxide nanoparticles (PS-IONs) were introduced as multipurpose stimuli-responsive co-delivery nanocarriers for a combination of dual-drug chemotherapy and photothermal therapy. Methods: Superparamagnetic iron oxide nanoparticles were synthesized via the sonochemical method and coated by a thin layer of silica. The nanostructures were then further modified with a layer of di-carboxylate polyethylene glycol... 

    Polyphenols attached graphene nanosheets for high efficiency NIR mediated photodestruction of cancer cells

    , Article Materials Science and Engineering C ; Volume 33, Issue 3 , 2013 , Pages 1498-1505 ; 09284931 (ISSN) Abdolahad, M ; Janmaleki, M ; Mohajerzadeh, S ; Akhavan, O ; Abbasi, S ; Sharif University of Technology
    2013
    Abstract
    Green tea-reduced graphene oxide (GT-rGO) sheets have been exploited for high efficiency near infrared (NIR) photothermal therapy of HT29 and SW48 colon cancer cells. The biocompatibility of GT-rGO sheets was investigated by means of MTT assays. The polyphenol constituents of GT-rGO act as effective targeting ligands for the attachment of rGO to the surface of cancer cells, as confirmed by the cell granularity test in flow cytometry assays and also by scanning electron microscopy. The photo-thermal destruction of higher metastatic cancer cells (SW48) is found to be more than 20% higher than that of the lower metastatic one (HT29). The photo-destruction efficiency factor of the GT-rGO is... 

    Smart nanostructures for cargo delivery: uncaging and activating by light

    , Article Journal of the American Chemical Society ; Volume 139, Issue 13 , 2017 , Pages 4584-4610 ; 00027863 (ISSN) Karimi, M ; Sahandi Zangabad, P ; Baghaee Ravari, S ; Ghazadeh, M ; Mirshekari, H ; Hamblin, M. R ; Sharif University of Technology
    Abstract
    Nanotechnology has begun to play a remarkable role in various fields of science and technology. In biomedical applications, nanoparticles have opened new horizons, especially for biosensing, targeted delivery of therapeutics, and so forth. Among drug delivery systems (DDSs), smart nanocarriers that respond to specific stimuli in their environment represent a growing field. Nanoplatforms that can be activated by an external application of light can be used for a wide variety of photoactivated therapies, especially light-triggered DDSs, relying on photoisomerization, photo-cross-linking/un-cross-linking, photoreduction, and so forth. In addition, light activation has potential in photodynamic... 

    Tunable surface plasmon resonance–based remote actuation of bimetallic core-shell nanoparticle-coated Stimuli responsive polymer for switchable chemo-photothermal synergistic cancer therapy

    , Article Journal of Pharmaceutical Sciences ; Volume 107, Issue 10 , 2018 , Pages 2618-2627 ; 00223549 (ISSN) Amoli Diva, M ; Sadighi Bonabi, R ; Pourghazi, K ; Hadilou, N ; Sharif University of Technology
    Abstract
    New dual light/temperature-responsive nanocarriers were synthesized using bimetallic plasmonic Au-Ag and Ag-Au nanoparticles (NPs) as cores of vehicles which subsequently functionalized with an upper critical solubility temperature–based poly acrylamide-co-acrylonitrile using reversible addition-fragmentation chain transfer for spatiotemporally controlled chemo-photothermal synergistic cancer therapy. The bimetallic cores were assigned to sense wavelengths close to the localized surface plasmon resonance of monometallic NP shell to produce heat which not only can increase the surrounding temperature over the upper critical solubility temperature of polymer to open its valves and promote drug... 

    Reduced polydopamine coated graphene for delivery of Hset1 antisense as A photothermal and gene therapy of breast cancer

    , Article Journal of Drug Delivery Science and Technology ; Volume 73 , 2022 ; 17732247 (ISSN) Babavalian, A ; Tekie, F. S. M ; Ayazi, H ; Ranjbar, S ; Varshochian, R ; Rad-Malelkshahi, M ; Akhavan, O ; Dinarvand, R ; Sharif University of Technology
    Editions de Sante  2022
    Abstract
    Breast cancer is the most prevalent type of cancer in women; hence, many researches have been focused on developing effective treatment protocols. In this study, a novel nanocarrier was fabricated for gene and photothermal combination cancer therapy by conjugating histone methyltransferase complex subunit SET1 (hSET1) on reduced polydopamine coated graphene oxide nanosheets (rGO-PDA). The rGO-PDA nanocarriers provide higher near-infrared absorption and further integrating with hSET1 antisense as an anticancer gene that down-regulates the amount of hSET1 overexpressed and suppresses the proliferation of cancer cells. The nanoplatform was prepared by polymerizing of dopamine, a mussel adhesive... 

    Gold nanorods for drug and gene delivery: An overview of recent advancements

    , Article Pharmaceutics ; Volume 14, Issue 3 , 2022 ; 19994923 (ISSN) Jahangiri Manesh, A ; Mousazadeh, M ; Taji, S ; Bahmani, A ; Zarepour, A ; Zarrabi, A ; Sharifi, E ; Azimzadeh, M ; Sharif University of Technology
    MDPI  2022
    Abstract
    Over the past few decades, gold nanomaterials have shown great promise in the field of nanotechnology, especially in medical and biological applications. They have become the most used nanomaterials in those fields due to their several advantageous. However, rod-shaped gold nanoparticles, or gold nanorods (GNRs), have some more unique physical, optical, and chemical properties, making them proper candidates for biomedical applications including drug/gene delivery, photothermal/photodynamic therapy, and theranostics. Most of their therapeutic applications are based on their ability for tunable heat generation upon exposure to near-infrared (NIR) radiation, which is helpful in both... 

    Multifunctional core-shell nanoplatforms (gold@graphene oxide) with mediated NIR thermal therapy to promote miRNA delivery

    , Article Nanomedicine: Nanotechnology, Biology, and Medicine ; Volume 14, Issue 6 , 2018 , Pages 1891-1903 ; 15499634 (ISSN) Assali, A ; Akhavan, O ; Adeli, M ; Razzazan, S ; Dinarvand, R ; Zanganeh, S ; Soleimani, M ; Dinarvand, M ; Atyabi, F ; Sharif University of Technology
    Elsevier Inc  2018
    Abstract
    Recent insights into the nanomedicine have revealed that nanoplatforms enhance the efficacy of carrier in therapeutic applications. Here, multifunctional nanoplatforms were utilized in miRNA-101 delivery and NIR thermal therapy to induce apoptosis in breast cancer cells. Au nanorods (NRs) or nanospheres (NSs) covered with graphene oxide (GO) were prepared and functionalized with polyethylene glycol as a stabilizer and poly-L-arginine (P-L-Arg) as a targeting agent. In nanoplatforms, coupling Au@GO prepared stable structures with higher NIR reactivity. P-L-Arg substantially enhanced the cellular uptake and gene retardation of stuffs coated by them. However, rod-shape nanoplatforms indicated... 

    Nanomedicine and advanced technologies for burns: Preventing infection and facilitating wound healing

    , Article Advanced Drug Delivery Reviews ; Volume 123 , 2018 , Pages 33-64 ; 0169409X (ISSN) Mofazzal Jahromi, M. A ; Sahandi Zangabad, P ; Moosavi Basri, S. M ; Sahandi Zangabad, K ; Ghamarypour, A ; Aref, A. R ; Karimi, M ; Hamblin, M. R ; Sharif University of Technology
    Elsevier B.V  2018
    Abstract
    According to the latest report from the World Health Organization, an estimated 265,000 deaths still occur every year as a direct result of burn injuries. A widespread range of these deaths induced by burn wound happens in low- and middle-income countries, where survivors face a lifetime of morbidity. Most of the deaths occur due to infections when a high percentage of the external regions of the body area is affected. Microbial nutrient availability, skin barrier disruption, and vascular supply destruction in burn injuries as well as systemic immunosuppression are important parameters that cause burns to be susceptible to infections. Topical antimicrobials and dressings are generally...