Article
Chemistry, Physical
Dorota Lachowicz, John Stroud, Janusz H. Hankiewicz, River Gassen, Angelika Kmita, Joanna Stepien, Zbigniew Celinski, Marcin Sikora, Jan Zukrowski, Marta Gajewska, Marek Przybylski
Summary: In this study, copper-zinc ferrite nanoparticles coated with a poly(ethylene glycol) layer were synthesized and embedded into agarose gel, successfully designing a novel temperature-sensitive contrast agent for magnetic resonance imaging (MRI). The experimental results showed a strong correlation between temperature and image intensity in MR images of the contrast agent under a temperature gradient.
CHEMISTRY OF MATERIALS
(2022)
Article
Biochemical Research Methods
Mahnaz Maddahfar, Shihui Wen, Seyed Mostafa Hosseinpour Mashkani, Lin Zhang, Olga Shimoni, Martina Stenzel, Jiajia Zhou, Barbara Fazekas de St Groth, Dayong Jin
Summary: The chain length of poly(oligo(ethylene glycol) methyl ether acrylate) (POEGMEA) affects the colloidal stability and antibody-conjugation efficiency of nanoparticles. Short POEGMEA chains cannot effectively stabilize the nanoparticles, while long chains hinder efficient conjugation to antibodies. Specifically, the polymer containing 13 OEGMEA units shows the highest binding efficiency for antibody molecules.
BIOCONJUGATE CHEMISTRY
(2021)
Article
Engineering, Environmental
Viktoria Neubertova, Olga Guselnikova, Yusuke Yamauchi, Anastasia Olshtrem, Silvie Rimpelova, Erik Cizmar, Martin Orendac, Jan Duchon, Lenka Volfova, Jan Lancok, Vit Herynek, Premysl Fitl, Pavel Ulbrich, Ludek Jelinek, Patrik Schneider, Juraj Kosek, Pavel Postnikov, Zdenka Kolska, Vaclav Svorcik, Sergii Chertopalov, Oleksiy Lyutakov
Summary: This study explores the covalent functionalization of MXenes for bioimaging applications. By using a chelating agent and Gd3+ ions, the commonly diamagnetic MXenes were transformed into paramagnetic materials, enabling their use in magnetic resonance imaging. Covalent functionalization not only enhanced the stability and cytocompatibility of MXenes but also prevented the leakage of Gd3+ ions. This work expands the bioapplication of MXenes by introducing an MRI contrast and developing covalent functionalization strategies.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Engineering, Biomedical
Tyler C. Owens, Nicolas Anton, Mohamed F. Attia
Summary: Computed tomography (CT) is a powerful imaging technique widely used in modern medicine, but it often requires the use of contrast agents to visualize structures with similar densities. Current clinical contrast agents for CT have significant drawbacks, such as nephrotoxicity and short circulation half-lives. Nanoparticle contrast agents have shown promise and are likely to be the main component of the next generation of CT contrast agents.
ACTA BIOMATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Mohamed F. Attia, Roman Akasov, Nancy M. Elbaz, Tyler C. Owens, Evan C. Curtis, Soham Panda, Ralph Santos-Oliveira, Frank Alexis, Forrest M. Kievit, Daniel C. Whitehead
Summary: We report the synthesis of hybrid iodinated silica-lipid nanoemulsions for ultrasound and X-ray imaging. The nanoemulsions showed excellent biocompatibility and significant contrast-enhancing properties, suggesting their potential as dual-modality clinical agents.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Xin Song, Qian Li, Jiang Han, Chuang Ma, Zhuo Xu, Haojin Li, Peijun Wang, Zhou Yang, Qingyue Cui, Lili Gao, Zewei Quan, Shengzhong (Frank) Liu, Kui Zhao
Summary: Metal-based halide perovskites are dominant in optoelectronics, but toxicity limits their applications. This study introduces a large metal-free perovskite crystal with long carrier lifetime and high photoluminescence quantum yield for light emission and X-ray detection.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Maximilian O. Besenhard, Luca Panariello, Celine Kiefer, Alec P. LaGrow, Liudmyla Storozhuk, Francis Perton, Sylvie Begin, Damien Mertz, Nguyen Thi Kim Thanh, Asterios Gavriilidis
Summary: Small iron oxide nanoparticles were synthesized in water using a flow reactor with carefully timed acid addition, resulting in stable nanoparticles suitable for MRI contrast agents. This continuous synthesis method allows for scalable production of small IONPs with high T-1 contrast enhancement.
Article
Chemistry, Multidisciplinary
Luke D. Geoffrion, David Medina-Cruz, Matthew Kusper, Sakr Elsaidi, Fumiya Watanabe, Prakash Parajuli, Arturo Ponce, Thang Ba Hoang, Todd Brintlinger, Thomas J. Webster, Gregory Guisbiers
Summary: Bismuth oxide nano-flakes were synthesized using pulsed laser ablation in liquids without external assistance, showing potential new applications; the physico-chemical properties of bismuth oxide at the nanoscale are altered, leading to new possibilities.
NANOSCALE ADVANCES
(2021)
Article
Materials Science, Ceramics
Eduardo Felix, Jose M. Manuel, Rocio Litran, Miguel A. Rodriguez, Sara Roman-Sanchez, Ruth Lahoz, Eva Natividad, Cecilia Fernandez-Ponce, Francisco Garcia-Cozar, Monserrat Llaguno-Munive, Ibane Abasolo, Pilar Yeste, Cathrin Pfaff, Juergen Kriwet, Oscar Bomati-Miguel
Summary: Ytterbium ferrites with fantastic ferroelectric and ferromagnetic properties are being used in various applications, but their potential as contrast agents in MRI and CT imaging is still underdeveloped. This study presents an eco-friendly method to directly synthesize stable and biocompatible colloidal dispersions of ytterbium ferrite nanoparticles, paving the way for the future evaluation of Yb-Fe based nanoparticles as multiplatform contrast agents in multimodal MRI and CT imaging.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Ammar Alhasan, Hairul Anuar Tajuddin, S. F. Abdul Sani, Tammar Hussein Ali, Shameer Hisham, Muhammad Haniff Mokti, Ngie Min Ung, Min Phin Ng, Kae Shin Sim
Summary: In this study, silica-Ag:Mn3O4 hybrid nanoparticles were synthesized and conjugated with a commercial iodine contrast agent (Iohexol) for CT contrast enhancement. The results showed that the absorption intensity of the nanoparticles drastically increased, with higher Hounsfield unit (HU) values compared to Iohexol, indicating the efficiency of the hybrid nanoparticles in CT contrast enhancement.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Antoine Amestoy, Aarushee Rangra, Vincent Mansard, Daisuke Saya, Emilie Pouget, Estelle Mazaleyrat, Fabrice Severac, Christian Bergaud, Reiko Oda, Marie-Helene Delville
Summary: Flexible strain sensors based on silica nanohelix (NH) arrays grafted with gold nanoparticles (AuNPs) showed improved stability and sensitivity compared to sensors containing only nanoparticles. These sensors have great potential for applications such as electronic skin and flexible touchscreens.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Christine M. Hamadani, Indika Chandrasiri, Mahesh Loku Yaddehige, Gaya S. Dasanayake, Iyanuoluwani Owolabi, Alex Flynt, Mehjabeen Hossain, Lucy Liberman, Timothy P. Lodge, Thomas A. Werfel, Davita L. Watkins, Eden E. L. Tanner
Summary: Researchers have discovered that ionic liquids based on choline carboxylic acid can form stable and biocompatible nano-assemblies with linear-dendritic block copolymers (LDBCs). These nano-assemblies have the ability to hitchhike on red blood cells and exhibit different cellular uptake behavior compared to other nanoparticles.
Article
Chemistry, Inorganic & Nuclear
Ragunath Madhu, Arun Karmakar, Kannimuthu Karthick, Sangeetha Kumaravel, Selvasundarasekar Sam Sankar, Devendra Prajapati, Subrata Kundu
Summary: The use of stable metallic Pt nanoparticles anchored on bio-scaffold DNA has shown promising results in catalytic and SERS studies in organic media. Specifically, Pt@DNA (0.05 M) exhibited higher catalytic activity and SERS enhancement in two different applications.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Theotim Lucas, Clement Linger, Thomas Naillon, Mahshid Hashemkhani, Lise Abiven, Bruno Viana, Corinne Chaneac, Gautier Laurent, Rana Bazzi, Stephane Roux, Sonia Becharef, Giulio Avveduto, Florence Gazeau, Jerome Gateau
Summary: Photoacoustic spectroscopy provides a precise and robust method of analyzing the photothermal capabilities of nanoagents in aqueous solutions, without the need for models.
Article
Optics
Qianwen Ying, Jiahao Zhang, Hongliang Zhang, Max Yan, Zhichao Ruan
Summary: A method for stabilizing the extinction cross section measurement of a single nanoparticle by analyzing the blurriness parameter of aperture edge images in real time is proposed. Experimental results show a one order magnitude reduction in measurement uncertainty compared to previous reports, increasing experimental stability and reducing the impact of laboratory environment.
Letter
Radiology, Nuclear Medicine & Medical Imaging
Fariba Zarei, Jalli Reza, Sepideh Sefidbakht, Pooya Iranpour, Rezvan Ravanfar Haghighi
ACADEMIC RADIOLOGY
(2020)
Letter
Radiology, Nuclear Medicine & Medical Imaging
S. P. Ostad, S. Haseli, P. Iranpour
ACADEMIC RADIOLOGY
(2020)
Letter
Radiology, Nuclear Medicine & Medical Imaging
Maryam Saki, Sara Haseli, Pooya Iranpour
ACADEMIC RADIOLOGY
(2020)
Letter
Radiology, Nuclear Medicine & Medical Imaging
Neda Khalili, Sara Haseli, Pooya Iranpour
ACADEMIC RADIOLOGY
(2020)
Letter
Emergency Medicine
Sepideh Sefidbakht, Mehrzad Lotfi, Reza Jalli, Mohsen Moghadami, Golnar Sabetian, Pooya Iranpour
EMERGENCY MEDICINE JOURNAL
(2020)
Letter
Rheumatology
Saeedeh Shenavandeh, Sepideh Sefidbakht, Pooya Iranpour, Arash Teimouri, Sedighe Hooshmandi, Etrat Hooshmandi, Mohammadjavad Athari
Article
Chemistry, Multidisciplinary
Mohammad Mohajeri, Pooya Iranpour, Yasmin Vahidi, Rezvan Ravanfar Haghighi, Zahra Faghih, Morteza Bararjanian, Peyman Salehi
Article
Oncology
Sepideh Sefidbakht, Mehrdad Askarian, Bijan Bijan, Mohammad Eghtedari, Sedigheh Tahmasebi, Fariba Zarei, Reza Jalli, Pooya Iranpour
Summary: For medical imaging facilities not directly involved in the COVID-19 epidemic, resuming breast imaging services requires attention to safety aspects and managing common clinical scenarios. By taking a stepwise approach and coordinating with the epidemic status and breast surgery situation, a smooth transition to full operational capacity can be ensured.
CLINICAL BREAST CANCER
(2021)
Article
Emergency Medicine
Hossein Abdolrahimzadeh Fard, Salahaddin Mahmudi-Azer, Sepideh Sefidbakht, Pooya Iranpour, Shahram Bolandparvaz, Hamid Reza Abbasi, Shahram Paydar, Golnar Sabetian, Mohamad Mahdi Mahmoudi, Masoume Zare, Leila Shayan, Maryam Salimi
Summary: The study found that chest CT scan is less effective in diagnosing COVID-19 in trauma patients compared to nontraumatic individuals, with lower sensitivity and specificity.
EMERGENCY MEDICINE INTERNATIONAL
(2021)
Article
Medicine, General & Internal
Pooya Iranpour, Sara Haseli, Pedram Keshavarz, Amirreza Dehghanian, Neda Khalili
Summary: Accessory and cavitated uterine mass (ACUM) is a rare form of Mullerian anomaly that typically presents in young females with chronic pelvic pain and/or dysmenorrhea. Accurate diagnosis relies on imaging modalities and clinical findings, with surgical excision being the mainstay of treatment.
CASE REPORTS IN MEDICINE
(2021)
Article
Engineering, Biomedical
Ali Noshad, Parham Arjomand, Ahmadreza Khonaksar, Pooya Iranpour
Summary: The novel deep residual COVID-Net architecture presented in the study can accurately identify COVID-19, pneumonia, and normal cases with a classification accuracy of 99.65%. Additionally, the model was able to correctly identify 12 out of 13 COVID-19 cases from chest X-ray images obtained at Namazi hospital in Iran, achieving an accuracy of 84%.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING-IMAGING AND VISUALIZATION
(2021)
Article
Medicine, General & Internal
Faranak Rafiee, Sara Haseli, Seyed Hamed Jafari, Pooya Iranpour
Letter
Cardiac & Cardiovascular Systems
Payam Mehrian, Pooya Iranpour, Sara Haseli, Neda Khalili
REVIEWS IN CARDIOVASCULAR MEDICINE
(2020)
Article
Pharmacology & Pharmacy
Amirhossein Babaei, Seyed Alireza Taghavi, Ali Mohammadi, Mohammad Amin Mahdiyar, Pooya Iranpour, Fardad Ejtehadi, Abdolali Mohagheghzadeh
INDIAN JOURNAL OF PHARMACOLOGY
(2020)
Letter
Medicine, General & Internal
Sepideh Sefidbakht, Mehrzad Lotfi, Mohsen Moghadami, Reza Jalli, Alireza Shakibafard, Pooya Iranpour, Seyed Hamed Jafari, Bijan Bijan
IRANIAN JOURNAL OF MEDICAL SCIENCES
(2020)
