Article
Chemistry, Multidisciplinary
Lenitza M. Nieves, Jessica C. Hsu, Kristen C. Lau, Andrew D. A. Maidment, David P. Cormode
Summary: Silver telluride nanoparticles (Ag2Te NPs) exhibit properties similar to Ag2S NPs, with high stability, biocompatibility, and strong X-ray contrast, making them suitable for computed tomography (CT) and dual-energy mammography (DEM) techniques. These findings emphasize the potential use of Ag2Te NPs in the biomedical field and for breast cancer screening.
Article
Optics
Shaozhou Pu, Yunwen Huang, Ning Zhao, Hui Liu, Yang Zuo, Cheng Zheng, Hangcheng Zhou, Lei Zhu, Yidong Yang
Summary: An in-house dual-modality XFT and XCT system was developed to quantify iodine contrast distribution through the whole tumor volume ex vivo. The vasculature distribution was reflected by the iodine perfusion, which was validated with histology. This technique may open a new, to the best of our knowledge, route to the non-destructive three-dimensional-imaging-based histological analysis of tumor samples.
Article
Optics
Michal Rawlik, Alexandre Pereira, Simon Spindler, Zhentian Wang, Lucia Romano, Konstantins Jefimovs, Zhitian Shi, Maxim Polikarpov, Jinqiu Xu, Marie-Christine Zdora, Stefano Van Gogh, Martin Stauber, Eduardo G. Yukihara, Jeppe B. Christensen, Rahel A. Kubik-Huch, Tilo Niemann, Cornelia Leo, Zsuzsanna Varga, Andreas Boss, Marco Stampanon
Summary: Refraction-based x-ray imaging can overcome the contrast limit of conventional CT, but is usually limited to high-dose ex vivo applications or requires highly coherent x-ray sources. In this study, we demonstrate that grating interferometry is more dose efficient than conventional CT for imaging of human breast under close-to-clinical conditions. Our system, using a conventional source and commercial gratings, outperformed conventional CT with spatial resolutions better than 263 μm and absorbed dose of 16 mGy. Further progress in grating fabrication is expected to greatly improve clinical CT.
Article
Nanoscience & Nanotechnology
Lenitza M. Nieves, Yuxi C. Dong, Derick N. Rosario-Berrios, Katherine Mossburg, Jessica C. Hsu, Gwendolyn M. Cramer, Theresa M. Busch, Andrew D. A. Maidment, David P. Cormode
Summary: Silver telluride nanoparticles (Ag2Te NPs) show good stability and biocompatibility as contrast agents in biomedical imaging, drug delivery, and therapeutics, and can be excreted efficiently through the kidneys.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
R. Fathima, A. Mujeeb
Summary: The study reports laser-induced synthesis of gold, silver, and gold-silver alloy nanoparticles in water and their nonlinear optical properties. The ability to fine-tune the nonlinear optical characteristics of nanoparticles by controlling the volume ratios of gold and silver in the alloy nanoparticles makes them promising candidates for optical limiting and opto-thermal applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Su-Jin Yoon, Yun-Sik Nam, Yeonhee Lee, In Hwan Oh, Kang-Bong Lee
Summary: A colorimetric assay using gold nanoparticles (AuNPs) conjugated with d-penicillamine (DPL) was developed for the dual detection of Hg2+ and As3+. The detection method relies on a significant color change from wine red to dark midnight blue, with detection limits of 0.5 nM and 0.7 nM for Hg2+ and As3+ in water samples, respectively. This novel probe demonstrates high sensitivity and selectivity, making it suitable for environmental monitoring applications.
Article
Chemistry, Analytical
Siyu Luo, Lin Ma, Fei Tian, Yingqiu Gu, Jingjing Li, Peng Zhang, Guohai Yang, Haitao Li, Lu-Lu Qu
Summary: A dual-mode functional nanosensor based on fluorescence and surface-enhanced Raman scattering (SERS) was proposed for monitoring telomerase activity. The sensor uses Cy5-functional gold nanoparticles (Au NPs) as the dual functional nanoprobe. Changes in the distance between the signaling molecule Cy5 and Au NPs result in changes in the SERS and fluorescence signals, allowing for telomerase activity monitoring.
MICROCHEMICAL JOURNAL
(2022)
Article
Multidisciplinary Sciences
Christian Koernig, Theresa Staufer, Oliver Schmutzler, Tanja Bedke, Andres Machicote, Beibei Liu, Yang Liu, Elisabetta Gargioni, Neus Feliu, Wolfgang J. Parak, Samuel Huber, Florian Gruener
Summary: X-ray fluorescence imaging is a non-invasive method for detecting small amounts of elements, especially nanoparticles in cells and tissues. However, its sensitivity decreases for thicker objects due to increased background caused by Compton scattering. Reducing the detection limit would allow tracking of labeled cells and provide new insights in medicine.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Huiquan Yang, Jing Zhao, Dongdong Li, Yuyu Cao, Fan Li, Jing Ma, Peidang Liu
Summary: In this study, polyethylene glycolylated silver-gold core-shell nanoparticles (Ag@Au NPs) with different Ag-Au molar ratios were synthesized, and their CT imaging effects were evaluated using micro CT. Ag@Au NPs with an Ag molar percentage of 50% exhibited excellent X-ray attenuation capability, morphology, and dispersibility. In vivo CT imaging showed a significant enhancement in contrast of tumors injected with Ag@Au NPs.
Article
Chemistry, Analytical
Meng-Qi He, Yongjian Ai, Wanting Hu, Xiaomeng Jia, Lei Wu, Mingyu Ding, Qionglin Liang
Summary: By using DNA as an etching agent, it is possible to control the morphology and optical properties of plasmonic nanoparticles, while also introducing fluorescence properties. This strategy allows for precise tuning of localized surface plasmon resonance (LSPR) and fluorescence-composited dual-mode signals.
ANALYTICAL CHEMISTRY
(2023)
Article
Spectroscopy
Mohamed Abdel Hamid, Ahmed Habib, Mokhtar Mabrouk, Sherin Hammad, Mahmoud Elshahawy
Summary: The purpose of this study is to develop a dual fluorescence-colorimetric sensor for determination of tobramycin using fluorescein-modified silver nanoparticles. Tobramycin can displace fluorescein from the surface of nanoparticles resulting in nanoparticles aggregation and liberation of free fluorescein restoring its fluorescence. The proposed methods were applied for determination of tobramycin in Tobrin (R) ophthalmic solution with high accuracy and precision.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Wenjing Jiang, Shuang Wei, Ruirui Zhang
Summary: A multifunctional ratiometric fluorescence probe was designed by combining glutathione-protected gold nanoclusters (AuNCs) with fluorescein-doped mesoporous silica nanoparticles (FS) for the detection of Cu2+ and Ag+ ions. The probe showed self-calibration capabilities, eliminating most interferences. The fluorescence intensity ratio exhibited good linear relationships with Cu2+ and Ag+ concentrations, and the detection limits were as low as 140 nM and 60 nM, respectively. The probe also allowed for visual discrimination through color change induced by fluorescence intensity ratio variation. It demonstrated promising prospects in cost-effective and rapid determination of Cu2+ and Ag+ ions with good sensitivity and selectivity.
Article
Radiology, Nuclear Medicine & Medical Imaging
Taeyun Kim, Woo Seung Lee, Miyeon Jeon, Hyejin Kim, Mingi Eom, Seongmoon Jung, Hyung-Jun Im, Sung-Joon Ye
Summary: A dual imaging modality of pinhole XRF and CT imaging system and L-shell XRF detection system were successfully developed. The developed systems are a promising modality for in vivo imaging and ex vivo quantification for preclinical studies using MNPs. In addition, we discussed further improvements for the routine preclinical applications of the systems.
Article
Chemistry, Multidisciplinary
Anish Kumar Das, Sourav Biswas, Anjali Thomas, Souradip Paul, Akhil S. Nair, Biswarup Pathak, M. Suheshkumar Singh, Sukhendu Mandal
Summary: This study demonstrates a strategy for influencing the photophysical properties of atom-precise CAMs by controlling cluster-solvent interactions, utilizing a unique arrangement of linker molecules to promote charge transfer phenomenon. The structural changes affecting the photoluminescence properties are revealed through analysis of non-covalent interactions and theoretical modeling.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Biochemical Research Methods
Sara Khademi, Ali Shakeri-Zadeh, Razieh Solgi, Hosein Azimian, Hossein Ghadiri
Summary: This study evaluated the efficiency of imaging nanoparticle concentration as contrast agents in DECT, using gold nanoparticles and FA-Cys-AuNPs. The hemocompatibility and quantification of nanoparticle concentration were confirmed through various analyses, showing FA-Cys-AuNPs as a suitable candidate for targeted contrast media.
IET NANOBIOTECHNOLOGY
(2021)
Letter
Infectious Diseases
Elizabeth S. McDonald
LANCET INFECTIOUS DISEASES
(2021)
Article
Engineering, Biomedical
Yue Huang, Yuan Liu, Shrey Shah, Dongyeop Kim, Aurea Simon-Soro, Tatsuro Ito, Maryam Hajfathalian, Yong Li, Jessica C. Hsu, Lenitza M. Nieves, Faizan Alawi, Pratap C. Naha, David P. Cormode, Hyun Koo
Summary: The study utilized nanotechnology to design a novel treatment that can produce reactive oxygen species under pathological conditions of dental caries in order to target biofilm pathogens, reducing the occurrence of cavities.
Review
Materials Science, Biomaterials
Yuxi C. Dong, Mathilde Bouche, Selen Uman, Jason A. Burdick, David P. Cormode
Summary: Hydrogels, as water-swollen polymer networks, show great potential in biomedical applications such as drug delivery and tissue engineering. However, it is challenging to assess their in vivo properties and tracking methods. Emerging technologies utilizing various imaging techniques, including X-ray CT, MRI, optical imaging, and nuclear imaging systems, have been developed to evaluate and track hydrogels in vivo.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Johoon Kim, Gwanui Hong, Luda Mazaleuskaya, Jessica C. Hsu, Derick N. Rosario-Berrios, Tilo Grosser, Park F. Cho-Park, David P. Cormode
Summary: The ultrasmall CeONP demonstrated potent antioxidant and anti-inflammatory properties, reducing acute inflammation and being effectively excreted from the body within a short period, minimizing long-term toxicity concerns.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Jessica C. Hsu, Yu Du, Arjun Sengupta, Yuxi C. Dong, Katherine J. Mossburg, Mathilde Bouche, Andrew D. A. Maidment, Aalim M. Weljie, David P. Cormode
Summary: Comparing the clearance and cellular distribution profiles of Ag2S-NPs synthesized via different methods revealed the significant impact of ligand integrity on clearance efficiency and cellular uptake. Understanding the influence of synthetic processes on ligand integrity and subsequent nano-biointeractions is crucial for designing nanoparticle platforms with enhanced clearance and desired distribution profiles.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Elizabeth S. McDonald, Mark A. Rosen
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2022)
Article
Chemistry, Multidisciplinary
Yuan Liu, Yue Huang, Dongyeop Kim, Zhi Ren, Min Jun Oh, David P. Cormode, Anderson T. Hara, Domenick T. Zero, Hyun Koo
Summary: The study demonstrates that ferumoxytol iron oxide nanoparticles exhibit potent antimicrobial specificity against bacterial pathogens in dental biofilms by catalyzing hydrogen peroxide, effectively suppressing tooth decay. These nanoparticles also have the ability to detect pathogenic biofilms on teeth through a colorimetric reaction, highlighting their theranostic potential as targeted anti-infective nanomedicine.
Article
Nanoscience & Nanotechnology
Lenitza M. Nieves, Yuxi C. Dong, Derick N. Rosario-Berrios, Katherine Mossburg, Jessica C. Hsu, Gwendolyn M. Cramer, Theresa M. Busch, Andrew D. A. Maidment, David P. Cormode
Summary: Silver telluride nanoparticles (Ag2Te NPs) show good stability and biocompatibility as contrast agents in biomedical imaging, drug delivery, and therapeutics, and can be excreted efficiently through the kidneys.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Rhea Chitalia, Sarthak Pati, Megh Bhalerao, Siddhesh Pravin Thakur, Nariman Jahani, Vivian Belenky, Elizabeth S. McDonald, Jessica Gibbs, David C. Newitt, Nola M. Hylton, Despina Kontos, Spyridon Bakas
Summary: This article proposes the enhancement of the I-SPY1 data collection to address the limitations of current public datasets in terms of data quality, expert annotation of pathology, and availability of baseline results from computational algorithms. The proposed dataset includes uniformly curated data, tumor annotations, and quantitative imaging features, aiming to support repeatable, reproducible, and comparative quantitative studies for new predictive, prognostic, and diagnostic assessments.
Article
Nanoscience & Nanotechnology
Yuxi C. Dong, Ananyaa Kumar, Derick N. Rosario-Berrios, Salim Si-Mohamed, Jessica C. Hsu, Lenitza M. Nieves, Philippe Douek, Peter B. Noel, David P. Cormode
Summary: This study explores the potential of ultrasmall ytterbium nanoparticles (YbNP) as contrast agents for computed tomography (CT) and spectral photon-counting computed tomography (SPCCT). The results demonstrate that YbNP have better contrast-generating properties compared to gold nanoparticles (AuNP) and can be used for labeling and monitoring hydrogels.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Min Jun Oh, Seokyoung Yoon, Alaa Babeer, Yuan Liu, Zhi Ren, Zhenting Xiang, Yilan Miao, David P. P. Cormode, Chider Chen, Edward Steager, Hyun Koo
Summary: Fungal pathogens have been identified as the highest priority microbial threats for global health. A nanozyme-based microrobotic platform has been developed to achieve targeted and rapid fungal killing with microscale precision. This platform uses structured iron oxide nanozyme assemblies that can transform shape and activate catalysis, resulting in controllable generation of reactive oxygen species (ROS). These nanozyme assemblies bind to fungal surfaces, allowing concentrated accumulation and targeted ROS-mediated killing in situ. By directing the structured nanozyme assemblies to Candida-infected sites, fungal eradication can be achieved within 10 minutes.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Jessica C. C. Hsu, Zhongmin Tang, Olga E. Eremina, Alexandros Marios Sofias, Twan Lammers, Jonathan F. Lovell, Cristina Zavaleta, Weibo Cai, David P. Cormode
Summary: Medical imaging plays a vital role in detecting physiological and pathological processes. The use of contrast agents based on nanomaterials is highly desired for advanced bioimaging techniques due to their unique properties and improved sensitivity. This review discusses the design considerations, physicochemical attributes, and biological behavior of nanomaterial-based contrast agents, as well as common approaches for formulation and characterization. Key applications are highlighted based on different contrast properties. The authors also provide perspectives on current challenges and future advancements in the field.
NATURE REVIEWS METHODS PRIMERS
(2023)
Article
Oncology
Hsiaoju S. Lee, Sally W. Schwarz, Erin K. Schubert, Delphine L. Chen, Robert K. Doot, Mehran Makvandi, Lilie L. Lin, Elizabeth S. McDonald, David A. Mankoff, Robert H. Mach
Summary: This article describes the development of F-18-FTT as a radiotracer for imaging PARP-1 expression levels in breast and ovarian cancer patients. It also discusses the preparation and submission of an exploratory investigational new drug application to the FDA and the need for a commercialization strategy to overcome financial barriers in multicenter clinical trials.
RADIOLOGY-IMAGING CANCER
(2022)
Review
Chemistry, Multidisciplinary
Lenitza M. Nieves, Katherine Mossburg, Jessica C. Hsu, Andrew D. A. Maidment, David P. Cormode
Summary: Silver chalcogenide nanoparticles have attracted significant attention for their excellent performance in both electronics and biomedical applications. Recent advancements have shown their potential in various biomedical fields such as bio-imaging and theranostics. The development of different synthetic approaches has further expanded the applications of silver chalcogenide nanoparticles in biomedicine.
Article
Chemistry, Multidisciplinary
Lenitza M. Nieves, Jessica C. Hsu, Kristen C. Lau, Andrew D. A. Maidment, David P. Cormode
Summary: Silver telluride nanoparticles (Ag2Te NPs) exhibit properties similar to Ag2S NPs, with high stability, biocompatibility, and strong X-ray contrast, making them suitable for computed tomography (CT) and dual-energy mammography (DEM) techniques. These findings emphasize the potential use of Ag2Te NPs in the biomedical field and for breast cancer screening.
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.