Article
Chemistry, Multidisciplinary
Shuo Deng, Dongsheng Wang, Zhiqiang Xiong, Siyu Zhang, Dengyu Li, Jin Zeng, Xuejiao Zhang, Qing Zhao
Summary: In this study, a new method for capturing and sterilizing pathogenic bacteria in water using BP-PNIPAM nanocomposites is proposed. The material can rapidly capture and co-precipitate bacterial cells under the stimulation of near-infrared irradiation, and exhibits high disinfection efficiency. Additionally, BP-PNIPAM shows no obvious toxicity to human cells. This research provides an efficient, biocompatible, and convenient approach for addressing water contamination by pathogenic bacteria.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Polymer Science
Wafa Al-Gethami, Noha Al-Qasmi
Summary: This study aimed to prepare antimicrobial nanocomposites consisting of alginate, chitosan, and camptothecin. The results showed a strong chemical interaction between alginate and chitosan, and successful loading of camptothecin in both Ca-Alg(2)/CPT and Ca-Alg(2)-CH/CPT nanomaterials. Antimicrobial tests revealed that Ca-Alg(2)-CH/CPT nanocomposite was more effective against Escherichia coli and Klebsiella pneumoniae, while Ca-Alg(2)/CPT was less efficient in killing all three types of bacteria. PCR analysis indicated changes in bacterial genetic material due to the nanomaterial processing.
Review
Polymer Science
Amin Babaei-Ghazvini, Bishnu Acharya, Darren R. Korber
Summary: Biodegradable polymers, particularly chitosan-based packaging materials, have attracted attention due to their biodegradability, non-toxic nature, and antimicrobial properties.
Article
Biotechnology & Applied Microbiology
Poliana C. Spricigo, Lucimeire Pilon, Jessica P. Trento, Marcia R. de Moura, Kely S. Bonfim, Milene C. Mitsuyuki, Luiz H. C. Mattoso, Marcos D. Ferreira
Summary: The study found that the solution containing chitosan nanoparticles showed better preservation effects on cut gerbera inflorescences, preventing stem bending, increasing water uptake, and controlling microbial growth more effectively.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2021)
Review
Environmental Sciences
Ecem Bahcelioglu, Husnu Emrah Unalan, Tuba Hande Erguder
Summary: Nanosilver has emerged as a promising alternative to traditional water disinfection methods due to its high effectiveness, low energy consumption, lack of by-product generation, and ability to achieve high removal efficiencies. Understanding the factors influencing the water disinfection performance of nanosilver is crucial for its further development and application in water treatment technologies.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Abdelfattah Amari, Noureddine Elboughdiri, Djamel Ghernaout, Ramzi Hadj Lajimi, Ali M. Alshahrani, Mohamed A. Tahoon, Faouzi Ben Rebah
Summary: This study proposed a multifunctional nanomaterial synthesized using glutaraldehyde as a crosslinker, which showed high efficiency in removing various pollutants such as bacteria, proteins, pharmaceuticals, dyes, and fluoride. Characterization using multiple techniques confirmed the enhanced pollutant removal efficiency of this nanocomposite compared to its individual components, and it remained effective for multiple cycles of reuse.
AIN SHAMS ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Yuanhao Dong, Jianhong Liu, Yuan Chen, Tao Zhu, Yuanhong Li, Chaoliang Zhang, Xin Zeng, Qianming Chen, Qiang Peng
Summary: By loading MXene nanomaterial into non-crosslinked chitosan hydrogel, MX-CS hydrogel was developed to effectively treat MRSA infections through the adsorption of MRSA cells and MXene-induced photothermal therapy.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Chandrasekaran Karthikeyan, Tippabattini Jayaramudu, Dariela Nunez, Nery Jara, Andres Opazo-Capurro, Kokkarachedu Varaprasad, Kyobum Kim, Murali M. Yallapu, Rotimi Sadiku
Summary: Metal nanoparticles, such as ZnO and TiO2, have been widely used as antibacterial and anticancer agents, but their toxicity on normal cells limits their clinical applications. In this study, a biocompatible and multifunctional hybrid nanomaterial (HNM) was developed using a double precipitation method. The HNM, composed of antimicrobial chitosan, curcumin, ZnO, and TiO2, showed improved biocidal properties and controlled toxicity, making it a potential innovative biocidal agent for clinical and healthcare applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Ceramics
Shreya Singh, Rahul Garg, Atanu Jana, Chinna Bathula, Soniya Naik, Mona Mittal
Summary: Clean water is essential for all living beings, but pollution caused by rapid industrialization, population growth, urbanization, global warming, extensive agriculture, and climate change has made access to clean water difficult. Wastewater treatment has become a top priority for every country due to the number of deaths caused by diseases related to waste or polluted water. Nanotechnology provides potential solutions for improving water purification and disinfection, with metal oxide nanoparticles offering unique properties and applications in removing pollutants from wastewater.
CERAMICS INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Maria Mondejar-Lopez, Alberto Jose Lopez-Jimenez, Joaquin C. Garcia Martinez, Oussama Ahrazem, Lourdes Gomez-Gomez, Enrique Niza
Summary: In this study, the natural terpene thymoquinone was encapsulated in chitosan nanoparticles, showing high antimicrobial and moisturizing properties in cosmetic products, indicating its promising use as an alternative preservative.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Mingqi Xu, Huayong Luo, Hongwei Rong, Shuhan Wu, Zexin Zheng, Boyuan Chen
Summary: This study reports the preparation of calcium alginate gels-functionalized PUF decorated with AgNPs (CA/PUF@Ag) by in situ reduction of Ag+ ions to form AgNPs with weakly reducing glycerol in CA/PUF composite. The water-adsorbing capacity, chemical structure, crystalline nature, elemental composition and morphologies of the composite were characterized. The antimicrobial efficacy of CA/PUF@Ag was explored through various experiments, showing superior water absorption, lower Ag release concentration, and excellent antibacterial performance.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Roger Wallacy Guimaraes Oliveira, Jefferson Magalhaes de Oliveira, Francyellen Batista da Paz, Edvani Curti Muniz, Edmilson Miranda de Moura, Jean Claudio Santos Costa, Matheus Oliveira do Nascimento, Andre Luis Menezes Carvalho, Iluska Martins Pinheiro, Anderson Nogueira Mendes, Livia Alves Filgueiras, Paulo Ricardo de Souza, Carla Veronica Rodarte de Moura
Summary: Anadenanthera colubrina, also known as white angico, is a common tree in Brazil with potential for producing medical films. This study prepared films composed of white angico gum and chitosan mixed with an antimicrobial agent using the solvent casting method, and evaluated their physicochemical properties and release behavior. The results showed that the films exhibited good properties and antimicrobial effects.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Biochemistry & Molecular Biology
Xuezheng Lin, Xiaochen Gong, Qicheng Ruan, Wei Xu, Chunjing Zhang, Kai Zhao
Summary: Chitosan, a biocompatible and biodegradable polymer derived from chitin polysaccharide, is widely used in medical and pharmaceutical fields due to its antimicrobial activities against various pathogens. It also has beneficial effects on animals and can be applied in agriculture and environmental protection. However, its water solubility affects its antimicrobial capabilities, limiting its application. This review updates the preparation, factors affecting antimicrobial activity, structure, mechanism, and potential applications of chitosan derivatives in the antimicrobial field.
CURRENT MEDICINAL CHEMISTRY
(2023)
Review
Engineering, Environmental
Zhuoyun Tang, Dingren Ma, Qi Chen, Yongyi Wang, Mingzhe Sun, Qiyu Lian, Jin Shang, Po Keung Wong, Chun He, Dehua Xia, Tianqi Wang
Summary: This review provides comprehensive and state-of-the-art knowledge of photothermal-based disinfection using nanomaterials (NPs). It summarizes recent advances in photothermal/photothermocatalytic catalysts and highlights the mechanisms and performance of photothermal materials. The review also outlines future challenges and opportunities in developing cost-effective photothermal/photothermocatalytic disinfection systems.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Danica Z. Zmejkoski, Zoran M. Markovic, Nemanja M. Zdravkovic, Dijana D. Trisic, Milica D. Budimir, Sanja B. Kuzman, Natalia O. Kozyrovska, Iryna V. Orlovska, Nikol Bugarova, Dorde Z. Petrovic, Maria Kovacova, Angela Kleinova, Zdeno Spitalsky, Vladimir B. Pavlovic, Biljana M. Todorovic Markovic
Summary: Low molecular weight chitosan polymer was incorporated into bacterial cellulose to prepare biocompatible composites with moderate antioxidant activity and bactericidal effect. In vitro release test showed 13.3% chitosan release after 72 hours. Morphology analysis indicated significant impact of these composites on bacteria.