Article
Chemistry, Multidisciplinary
Roya Thach-Nguyen, Hoa-Hung Lam, Hong-Phuong Phan, Trung Dang-Bao
Summary: Celluloses, as the most abundant natural biopolymer, have been widely used in various fields. This study isolated cellulose nanocrystals from corn leaf and successfully immobilized silver nanoparticles on their surface. The cellulose nanocrystals exhibited excellent catalytic activity in selective reduction reactions.
Article
Chemistry, Multidisciplinary
Ke Liu, Jiaxing Su, Jiangong Liang, Yuan Wu
Summary: Mesoporous MnFe2O4 magnetic nanoparticles exhibit intrinsic peroxidase-like activity and can be used as a colorimetric sensor for glucose detection in urine. The sensor is fast, sensitive, specific, and has the potential for on-site glucose detection.
Review
Chemistry, Multidisciplinary
Mohamad Zandieh, Juewen Liu
Summary: The article discusses the issue of calculating catalytic turnover rates of nanozymes, emphasizing that only surface atoms should be considered as active sites. Different types of nanozymes exhibit varying catalytic activity characteristics, which may be influenced by the adsorption of reaction products.
Article
Chemistry, Multidisciplinary
Indresh Kumar, Chinky Gangwar, Bushra Yaseen, Pradeep Kumar Pandey, Sheo K. Mishra, Radhey Mohan Naik
Summary: In this study, silver nanoparticles (SNPs) in the size range of 6-10 nm were successfully synthesized using a chemical reduction method. The formation of SNPs was studied spectrophotometrically, and a plausible mechanism for the formation of SNPs colloid was proposed based on experimental findings. SNPs showed remarkable catalytic activity for the reduction of the cationic dye methylene blue.
Article
Chemistry, Analytical
Christina Sarakatsanou, Sophia Karastogianni, Stella Girousi
Summary: This study developed a modified glassy carbon electrode with saffron conjugated silver nanoparticles to determine amoxicillin antibiotic in urine samples. The modified electrode exhibited enhanced electrocatalytic activity and showed promising results for the sensitive determination of amoxicillin in biological samples.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Christina Sarakatsanou, Sophia Karastogianni, Stella Girousi
Summary: In this study, a modified glassy carbon electrode with saffron conjugated silver nanoparticles was developed for the determination of amoxicillin antibiotic in urine samples. The modified electrode showed enhanced electrocatalytic activity and exhibited a linear calibration curve in the concentration range from 1.273 x 10-4 g L-1 to 2.217 x 10-3 g L-1. The method showed potential for the sensitive and selective determination of amoxicillin in urine samples, with a detection limit of 9.739 x 10-6 g L-1.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Multidisciplinary
Amandeep Kaur, Poonam Khullar, Mandeep Singh Bakshi
Summary: In this study, cyclodextrin-stabilized magnetic nanoparticles were used to extract Au/Ag nanoparticles as nanometallic pollutants from water. The extraction process relied on the host-guest interactions between the surfactants used for stabilizing the Au/Ag nanoparticles and the CD cavity of the functionalized magnetic nanoparticles. Stronger host-guest interactions were found to be necessary for effective extraction.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Biochemistry & Molecular Biology
Vera Alexandra Spirescu, Cristina Chircov, Alexandru Mihai Grumezescu, Bogdan Stefan Vasile, Ecaterina Andronescu
Summary: The development of drug-resistant microorganisms poses a critical challenge to modern medicine and drug discovery, necessitating innovative strategies to combat global health issues. Metal and metal oxide nanoparticles have shown promise as effective nanobiocides and nanocarriers for antimicrobial drugs, offering potential solutions to combat infections.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Biochemistry & Molecular Biology
Sangiliyandi Gurunathan, Ah Reum Lee, Jin Hoi Kim
Summary: SARS-CoV-2 has caused a pandemic of COVID-19, and some patients have acquired secondary infections such as black fungus disease. Prompt diagnosis and treatment are necessary to prevent high mortality and morbidity rates. Uncontrolled diabetes and immunosuppression are major risk factors, and the use of steroids can increase the risk of black fungus infection. Novel and effective antimicrobial agents are needed to combat this infection.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Chemistry, Multidisciplinary
Iwan Darmadi, Ida Ostergren, Sarah Lerch, Anja Lund, Kasper Moth-Poulsen, Christian Muller, Christoph Langhammer
Summary: Sensors are important in various areas of modern technology, including hydrogen gas (H-2) sensors, which mitigate safety risks associated with H-2 and air mixtures. The demand for H-2 sensors is increasing due to the rapid development of H-2 technologies. This article discusses the development of sensors based on plasmonic plastics, which offer a cost-effective and scalable route for mass production of sensing materials.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Rafael Torres-Mendieta, Nhung H. A. Nguyen, Andrea Guadagnini, Jaroslav Semerad, Dariusz Lukowiec, Petr Parma, Jijin Yang, Stefano Agnoli, Alena Sevcu, Tomas Cajthaml, Miroslav Cernik, Vincenzo Amendola
Summary: A method using silver nanoparticles doped with magnetic elements to perforate bacterial biofilms has been reported, with demonstrated effectiveness and biological impacts in different bacterial models. This method offers a sustainable, low-cost, and scalable production route, suitable for real-world applications.
Article
Chemistry, Multidisciplinary
Maurice Retout, Bryan Gosselin, Amina Adrovic, Pascale Blond, Ivan Jabin, Gilles Bruylants
Summary: In this study, a thin and robust coating based on calixarene-diazonium salts was developed to maintain the anisotropic structure of silver nanoplates, resulting in increased lifetime and stability. This coated silver nanoplates were then used for the detection of rabbit immunoglobulin G and Anti-SARS-CoV-2 IgG, achieving a low limit of detection and successful detection in human plasma. Additionally, the wide range of colors provided by the silver nanoplates allowed for the design of a multicolor multiplex assay for simultaneous detection of multiple analytes.
Article
Chemistry, Multidisciplinary
Sharafaldin Al-Musawi, Salim Albukhaty, Hassan Al-Karagoly, Faizah Almalki
Summary: A dual-targeting nanomedicine composed of pH-sensitive superparamagnetic iron oxide core-gold shell SPION@Au, chitosan (CS), and folate (FA) was developed for doxorubicin (DOX) antitumor medication. The nanocomposite exhibited elevated drug loading behavior and sustained drug release capacity, with long-term anti-cancer efficacy shown in SkBr3 cell lines. In vivo results demonstrated significant tumor size reduction in treated mice, indicating the potential of this formulation for clinical breast cancer treatment.
Article
Nanoscience & Nanotechnology
Shehzahdi S. Moonshi, Karla X. Vazquez-Prada, Joyce Tang, Nicholas J. Westra J. van Holthe, Gary Cowin, Yuao Wu, Huong D. N. Tran, Ryan Mckinnon, Andrew C. Bulmer, Hang Thu Ta
Summary: In this study, a novel nanohybrid, silver-iron oxide nanoparticles (AgIONPs), was designed for effective photothermal treatment and dual imaging strategy using MRI and photoacoustic imaging (PAI) in a cancer model. The combination of the inherent anticancer activity of silver and photothermal therapy demonstrated excellent therapeutic capability of AgIONPs. The in vivo imaging studies showed preferential uptake of folate-targeted NPs in a cancer mice model, indicating their selective targeting efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Biomaterials
Cristina de la Encarnacion, Felix Jungwirth, David Vila-Liarte, Carlos Renero-Lecuna, Safiyye Kavak, Inaki Orue, Claire Wilhelm, Sara Bals, Malou Henriksen-Lacey, Dorleta Jimenez de Aberasturi, Luis M. Liz-Marzan
Summary: Hyperthermia has been shown to be an effective and selective cancer therapy strategy by heating malignant cells above 42 degrees C to trigger cell death. Magnetic and photothermal hyperthermia can benefit from the use of nanomaterials. This hybrid colloidal nanostructure, consisting of plasmonic gold nanorods covered by a silica shell and subsequently grown with iron oxide nanoparticles, is responsive to both external magnetic fields and near-infrared irradiation, enabling targeted magnetic separation and photothermal heating.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Engineering, Environmental
Jinyu Duan, Linfeng Bai, Kezhu Xu, Qunling Fang, Yuhang Sun, Huajian Xu, Ken Cham-Fai Leung, Shouhu Xuan
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Analytical
Fung-Kit Tang, Sing-Ming Chan, Tao Wang, Chak-Shing Kwan, Regina Huang, Zongwei Cai, Ken Cham-Fai Leung
Article
Biochemical Research Methods
Tao Wang, Zongwei Cai, Yanyan Chen, Wang Ka Lee, Chak-Shing Kwan, Min Li, Albert S. C. Chan, Zhi-Feng Chen, Allen Ka Loon Cheung, Ken Cham-Fai Leung
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
(2020)
Article
Chemistry, Multidisciplinary
Chak-Shing Kwan, Ken Cham-Fai Leung
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2020)
Correction
Chemistry, Physical
Govardhana Babu Bodedla, Daniel Nnaemaka Tritton, Xi Chen, Jianzhang Zhao, Zeling Guo, Ken Cham-Fai Leung, Wai-Yeung Wong, Xunjin Zhu
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Govardhana Babu Bodedla, Daniel Nnaemaka Tritton, Xi Chen, Jianzhang Zhao, Zeling Guo, Ken Cham-Fai Leung, Wai-Yeung Wong, Xunjin Zhu
Summary: The iridium complex Ir-1 shows significantly enhanced photocatalytic hydrogen evolution efficiency compared to the control complex Ir-2, attributed to its high light-harvesting property, longer triplet electron lifetime, and appropriate driving force for electron transfer. The selection of suitable organic solvent/water photocatalytic systems addresses the photostability issues of Ir-1 and Ir-2.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Sing-Ming Chan, Fung-Kit Tang, Ching-Yau Lam, Chak-Shing Kwan, Sam C. K. Hau, Ken Cham-Fai Leung
Summary: The synthesis of mechanically interlocked molecules with unique topologies through pi-stacking intercomponent interactions has been studied. The length of glycol chains affects the stability and selectivity of the rotaxanes. The additional pi-stacking intercomponent interactions can increase the thermodynamic stability and selectivity of the rotaxanes, as shown by dynamic combinatorial library.
Article
Polymer Science
Ken Cham-Fai Leung, Kathy W. Y. Sham, Josie M. Y. Lai, Yi-Xiang J. Wang, Chi-Hin Wong, Christopher H. K. Cheng
Summary: The study optimized the gene delivery efficiency of ternary composites in transfected glioblastoma cells by tuning the bPEI/citrate-NP ratios. Among the composites prepared, the 0.2ng bPEI/0.5μg pDNA/1.0μg citrate-NP ternary composite showed the best cellular uptake efficiency, while the composite comprising 0.1ng bPEI/0.5μg pDNA/0.1μg citrate-NP exhibited the optimal efficiency for plasmid DNA uptake into the nucleus.
Article
Chemistry, Physical
Guanghui Liu, Qingshan Xiong, Yunqi Xu, Qunling Fang, Ken Cham-Fai Leung, Min Sang, Shouhu Xuan, Lingyun Hao
Summary: A sandwich-structured MXene@Au/Polydopamine nanosheet with good hydrophilicity, large specific surface area, and tri-photothermal components has been developed for nanocatalysis, demonstrating enhanced catalytic activity in reducing 4-nitrophenol. The PDA shell provides effective protection, allowing the nanosheets to maintain over 90% activity after 10 cycles of reaction. This work provides insights into the use of NIR light to improve the catalytic activity of noble metal nanocatalysts and offers a simple synthetic model for heterogeneous catalysts based on MXene nanocomposites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Chak-Shing Kwan, Watson K. -W. Ho, Yanyan Chen, Zongwei Cai, Ken Cham-Fai Leung
Summary: Second-generation type III-B rotaxane dendrons with succinimide and acetylene functional groups were successfully synthesized and characterized. A cell viability study showed low cytotoxicity of the dendrons, indicating potential for development into bio-compatible polymeric materials.
Article
Materials Science, Multidisciplinary
Ruitao Zhou, Fung-Kit Tang, Raymond Wai-Yin Sun, Man Kin Tse, Yujie Chen, Albert Sun Chi Chan, Shengzhou Chen, Xunjin Zhu, Ken Cham-Fai Leung
Summary: A uniform nickel film was coated on crown ether-modified carbon nanotubes (c-CNTs) by electroless deposition, forming CNT@Ni@(NiOH)(2) and c-CNT@Ni@(NiOH)(2) discs after oxidation and compression. The capacitances of the films were compared, with c-CNT@Ni@(NiOH)(2) demonstrating lower resistance.
MATERIALS ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Arthur C. K. Chung, Xuan Li, Wai-Chung Li, Tao Wang, Hin-Kiu Lee, Lijian Jin, Zongwei Cai, Ken Cham-Fai Leung
NANOSCALE ADVANCES
(2020)
Article
Chemistry, Inorganic & Nuclear
Chak-Shing Kwan, Tao Wang, Sing-Ming Chan, Zongwei Cai, Ken Cham-Fai Leung
DALTON TRANSACTIONS
(2020)
Article
Chemistry, Multidisciplinary
Fung-Kit Tang, Jiaqian Zhu, Fred Ka-Wai Kong, Maggie Ng, Qingyuan Bian, Vivian Wing-Wah Yam, Anfernee Kai-Wing Tse, Yu-Chung Tse, Ken Cham-Fai Leung
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Daniel Nnaemaka Tritton, Govardhana Babu Bodedla, Geliang Tang, Jianzhang Zhao, Chak-Shing Kwan, Ken Cham-Fai Leung, Wai-Yeung Wong, Xunjin Zhu
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
