Article
Chemistry, Multidisciplinary
Bhanita Goswami, Debajyoti Mahanta
Summary: This study developed an electrochemical sensor based on the Fe3O4-PANI nanocomposite for enzyme-less detection of 2,4-D in aqueous medium. The sensor showed superior electrochemical behavior and a linear concentration range, making it suitable for detection at ambient temperature.
Article
Materials Science, Multidisciplinary
Jie Liu, Yitong Dong, Zhengxin Ma, Zhilu Rao, Xuejing Zheng, Keyong Tang
Summary: This study developed nanocomposite films based on soluble soybean polysaccharide (SSPS), carrageenan (CG), and green synthesized silver nanoparticles (AgNPs). The addition of CG significantly improved the mechanical properties, thermal stability, and water resistance of the films. The nanocomposite films also showed antibacterial activity against Escherichia coli and Staphylococcus aureus, suggesting their potential in food and pharmaceutical packaging applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sangeeta Kumari, Raj Pal Singh, Nayaku N. Chavan, Shivendra V. Sahi, Nilesh Sharma
Summary: This research successfully developed a unique nanocomposite film with enhanced elasticity using magnetic Pt-Fe3O4 nanoparticles and chitosan-g-glycolic acid organic fraction, showing superior physical properties. These nanocomposite films hold great potential for various biomedical applications.
Article
Chemistry, Applied
Swarup Roy, Jong-Whan Rhim
Summary: Quercetin-loaded chitosan nanoparticles (QCNP) were prepared using a simple one-pot chemical reaction and incorporated into chitosan-based bioactive packaging films with excellent UV blocking properties. The addition of QCNP influenced the physical properties of the films and enhanced the release of quercetin under acidic and alcoholic conditions, showing potent antioxidant and antibacterial activity. The developed chitosan/QCNP-based films have promising applications in active food packaging.
FOOD HYDROCOLLOIDS
(2021)
Article
Chemistry, Physical
Zafer Ciplak, Nuray Yildiz
Summary: In this study, Ag@Fe3O4 core@shell nanoparticles decorated nitrogen doped reduced graphene oxide (NrGO) were successfully obtained with a facile and simple method. The ternary nanocomposite exhibited a specific capacitance of 212.2 F/g and retained 77% of its specific capacitance after 10,000 cycles, indicating great potential as an electrode material for supercapacitor applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Biswajoy Bagchi, Carmen Salvadores Fernandez, Manni Bhatti, Lena Ciric, Laurence Lovat, Manish K. Tiwari
Summary: A novel antibacterial nanocomposite film containing copper nanowires was successfully fabricated in this study, showing excellent antibacterial activity and good biocompatibility towards human dermal fibroblast. The slow dissolution rate of the film and production of lower amount of ROS producing Cu2+ ions contribute to the low cytotoxicity of copper nanowires, indicating a strong potential for broader biomedical and clinical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Applied
Yahong Han, Mingrui Zhou, David Julian McClements, Fuguo Liu, Cheng Cheng, Jinwei Xiong, Ming Zhu, Shuai Chen
Summary: In this study, curcumin-zein-EGCG-carrageenan nanoparticles were successfully prepared and embedded within carrageenan films to form composite films with enhanced antioxidant activity and smart responses. The composite films exhibited improved UV barrier, mechanical properties, and thermal resistance. Additionally, the films displayed color changes in response to pH and ammonia concentration, and showed high free radical scavenging activities. Furthermore, the composite film demonstrated the ability to monitor and extend the freshness of packaged fish.
CARBOHYDRATE POLYMERS
(2023)
Article
Chemistry, Multidisciplinary
Yang Wang, Xun Li, Yuan Fang, Jianhua Wang, Danhong Yan, Baisong Chang
Summary: Cascade catalytic therapy is a promising cancer treatment strategy that induces tumor apoptosis by converting intratumoral H2O2 into highly toxic OH radicals. In this study, pH-responsive biodegradable nanocomposites with dual enzymatic catalytic features were designed to respond to the tumor microenvironment and catalyze glucose oxidation and the Fenton-like reaction for inducing oxidative stress. The cooperative cancer therapy showed highly efficient tumor inhibition on HeLa cells with minimal systemic toxicity.
Article
Chemistry, Applied
Gemma C. Porter, Donald R. Schwass, Geoffrey R. Tompkins, Sharan K. R. Bobbala, Natalie J. Medlicott, Carla J. Meledandri
Summary: The synthesis and incorporation of antimicrobial silver nanoparticles (AgNPs) into an alginate hydrogel showed improved properties and antibacterial effects, with controlled release of silver ions for specific microorganisms and biofilms.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Biomedical
Lakshmanan Muthulakshmi, U. Pavithra, V Sivaranjani, N. Balasubramanian, Kunnathur Murugesan Sakthivel, Catalin Iulian Pruncu
Summary: A novel biohybrid hydrogel nanocomposite made of carrageenan and gelatin protein was developed, with antibacterial activity tested against human pathogens and cytotoxic assay performed against lung cancer cells.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Review
Biochemistry & Molecular Biology
Mohsin B. Aga, Aamir H. Dar, Gulzar A. Nayik, Parmjit S. Panesar, Farhana Allai, Shafat A. Khan, Rafeeya Shams, John F. Kennedy, Aayeena Altaf
Summary: Nanotechnology has been utilized in food packaging to develop innovative materials with enhanced properties by incorporating nanomaterials like TiO2, SiO2, and nano clays into carrageenan. Carrageenan-based bio-nanocomposite packaging materials show promising results in increasing food quality and shelf stability, while also addressing environmental concerns with their high biodegradability index.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Ayed S. Allogmani, Roushdy M. Mohamed, Mohamed S. Hasanin
Summary: This study examined the preparation of biomaterial-based multifunctional biopolymers via an eco-friendly formulation method using ultrasound. The formulated nanocomposite showed a thermally stable nanostructure and demonstrated excellent cytocompatibility, antimicrobial activity, and antioxidant activity.
Article
Engineering, Biomedical
Tahereh Khani, Zahra Alamzadeh, Abolfazl Sarikhani, Mahdie Mousavi, Mehri Mirrahimi, Mousa Tabei, Rasoul Irajirad, Ziaeddin Abed, Jaber Beik
Summary: In this study, researchers successfully constructed iron oxide-gold core-shell hybrid nanocomposites that can be detected through MRI and targeted towards tumors using an external magnetic field. The gold shell can respond to near-infrared light, generating localized heating for photothermal therapy. Experiments showed that this nanocomposite can effectively combine chemotherapy and photothermal therapy, resulting in superior therapeutic outcome.
LASERS IN MEDICAL SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Sajjad Tabar Maleki, Seyed Javad Sadati
Summary: In this study, Fe3O4/HNTs nanocomposites were successfully synthesized and characterized. The results showed that Fe3O4/HNTs nanocomposites have great potential in the application of hyperthermia for cancer treatment.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Katabathini Narasimharao, Shaeel Al-Thabaiti, Hament Kumar Rajor, Mohamed Mokhtar, Abdulmohsen Alsheshri, Sulaiman Yahya Alfaifi, Noufal Komby Abdulla, Sharf Ilahi Siddiqui
Summary: This study describes the synthesis and utilization of Fe3O4@date seeds powder as an adsorbent for removing methylene blue from water. The Fe3O4 nanoparticles were grown on date seeds powder using a simple co-precipitation method. The prepared bio-adsorbent showed different chemical functional groups on its surface. The study demonstrated that the bio-adsorbent had a monolayer adsorption capacity of 76.652 mg g(-1) at 27 degrees C and followed the Freundlich isotherm and pseudo second order kinetic model. The adsorption process was found to be dominated by electrostatic interactions between the functional groups on the bio-adsorbent surface and the dye, with intraparticle diffusion as the rate determining step.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Environmental Sciences
Sai Kumar Tammina, Jong-Whan Rhim
Summary: The study reveals the impact of nitrogen doping on polyethylene glycol (PEG)-derived carbon dots in terms of optical, antibacterial, and antioxidant activity. The carbon dots' size and charge were measured using transmission electron microscopy (TEM) and a zeta sizer, with an average size of 2.14 +/- 0.6 nm and a surface charge of -20 mV. Nitrogen-doped carbon dots exhibited potent antioxidant and significant antimicrobial activity, while undoped carbon dots showed no significant activity. Additionally, loading the nitrogen-doped carbon dots into a carboxymethyl cellulose (CMC)/agar-based film resulted in increased physicochemical properties and UV blocking capability without sacrificing transparency. The film with 8% nitrogen-doped carbon dots completely destroyed Escherichia coli and Listeria monocytogenes after 6 hours of incubation.
Review
Biochemistry & Molecular Biology
Swarup Roy, Wanli Zhang, Deblina Biswas, Rejish Ramakrishnan, Jong-Whan Rhim
Summary: Consumers are increasingly interested in natural antimicrobials and antioxidants in food processing and packaging. Grapefruit seed extract (GSE) has been widely accepted and found effective in food as an antimicrobial and coating material. This review provides an up-to-date overview of GSE-based packaging, including its extraction methods, manufacturing processes, physical properties, and food preservation applications.
Review
Food Science & Technology
Wanli Zhang, Swarup Roy, Jong-Whan Rhim
Summary: This review summarizes the latest developments in the design, fabrication, and application of Cu-based nanofillers in biopolymer-based functional packaging films, discussing their effects on film properties and potential applications in fresh food preservation. The study found that the addition of Cu-based nanoparticles improved film properties and extended the shelf life of fresh foods. However, research on the migration characteristics and safety of copper-based nanoparticle food packaging films in bio-based films is limited.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2023)
Review
Chemistry, Multidisciplinary
Ruchir Priyadarshi, Ajahar Khan, Parya Ezati, Sai Kumar Tammina, Sunaina Priyadarshi, Tanima Bhattacharya, Jun Tae Kim, Jong-Whan Rhim
Summary: About 70 million tons of sulfur are produced yearly as a by-product of petroleum refining, of which 10 million tons are overproduced and accumulated, necessitating advanced recycling strategies for a circular economy. This review focuses on the recycling of sublimed sulfur into value-added products, including nanotechnology, medicine, agriculture, sensors, electronics, polymers, photocatalysis, construction materials, food packaging, and preservation. Electronics applications encompass energy storage devices, light-emitting diodes, and photovoltaic devices.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Food Science & Technology
Wanli Zhang, Swarup Roy, Parya Ezati, Da-Peng Yang, Jong-Whan Rhim
Summary: Due to the biodegradable, biocompatible, sustainable, and renewable nature of biomaterials, there is a growing interest in developing biopolymer-based food packaging films using green ingredients and strategies. Green crosslinking technology, particularly using tannic acid as a natural crosslinker, has shown promising effects in improving the performance of biopolymer-based food packaging films. The crosslink of tannic acid not only enhances the properties of the films, but also contributes to food preservation.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Swarup Roy, Jong-Whan Rhim
Summary: Biopolymer-based films were fabricated using a mixture of pullulan and agar, and functionalized with bioactive components such as eucalyptus essential oil and rutin. The addition of these components changed the color of the film to light yellow and increased its UV protection and antioxidant activity. The mechanical and barrier properties of the film were not significantly affected. This bioactive functional film has potential applications in active food packaging.
Review
Materials Science, Multidisciplinary
Rajesh V. Wagh, Ruchir Priyadarshi, Jong-Whan Rhim
Summary: Research and development on innovative packaging materials have led to the development of active food packaging, which reduces oxidation and microbial growth, extends shelf life, and protects consumers. This includes the incorporation of antimicrobial agents into packaging formulations, with a preference for natural options. Bacteriophages have emerged as a potential tool for decontaminating food sources, targeting specific pathogens without harming beneficial bacteria or infecting humans. Incorporating bacteriophages into food packaging films not only kills specific microorganisms but also combats antimicrobial resistance issues.
Article
Food Science & Technology
Parya Ezati, Ajahar Khan, Jong-Whan Rhim
Summary: Modified carbon dots with resazurin (R-CD) were prepared using a hydrothermal method to fabricate a CNF-based pH-responsive indicator for real-time food freshness monitoring. The R-CD was uniformly distributed in the CNF matrix, increasing the thermal stability of the indicator film. The CNF/R-CD film showed excellent UV-barrier properties and rapid response to alkaline pH and NH3.
Article
Food Science & Technology
Yeon Ho Kim, Hyun-Ji Kim, Ki Sun Yoon, Jong-Whan Rhim
Summary: Fully deacetylated quaternized chitosan (DQCTS) was used as functional fillers in cellulose nanofiber (CNF)-based films. The addition of DQCTS improved the UV and visible light-blocking properties of the films, changed the surface color and hydrophobicity, and exhibited strong antibacterial activity against Listeria monocytogenes. Packaging raw salmon with CNF/DQCTS composite film extended the shelf life of the salmon by inhibiting the growth of L. monocytogenes at various temperatures.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Nanoscience & Nanotechnology
Ajahar Khan, Parya Ezati, Jong-Whan Rhim
Summary: Nitrogen, phosphorus-doped green-tea-derived carbon dots (NP-CDs) were incorporated into chitosan/starch films to create multifunctional nanocomposites. The films exhibited homogeneous distribution of CDs and improved UV-light blocking, water transparency, and water vapor permeability. The NP-CD-loaded films also showed enhanced antioxidant and antibacterial activities, making them a promising active packaging material for meat products.
ACS APPLIED BIO MATERIALS
(2023)
Article
Chemistry, Applied
Parya Ezati, Ajahar Khan, Ruchir Priyadarshi, Tanima Bhattacharya, Sai Kumar Tammina, Jong-Whan Rhim
Summary: Developing environmentally friendly and sustainable packaging materials is a challenge in food packaging. UV protection is important in preventing damage to packaged foods caused by UV rays. This review discusses the use of UV-blocking materials in food packaging, including the design and applications of biopolymer composites for UV-protected sustainable packaging. The challenges and prospects of sustainable UV protective packaging are also discussed.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Applied
Shiv Dutt Purohit, Ruchir Priyadarshi, Rakesh Bhaskar, Sung Soo Han
Summary: This study discusses the use of nanoceria as a multifunctional filler in food packaging biopolymer films for the first time. Nanoceria was synthesized using the co-precipitation method. Chitosan-based food packaging films incorporated with 1 wt% and 2 wt% nanoceria were prepared and characterized. The nanocomposite films displayed strong UV blocking properties, mechanical strength, thermal stability, moisture barrier properties, photocatalytic activity, antimicrobial activity, antioxidant potential, and biocompatibility, making them suitable for active food packaging applications.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Multidisciplinary
Sai Kumar Tammina, Ruchir Priyadarshi, Jong-Whan Rhim
Summary: The present study synthesized PVA-stabilized sulfur quantum dots (SQDs) using hydrothermal method, which showed excellent luminescence properties (quantum yield: 11%) and smaller particle size (4.16 +/- 1.2 nm), as well as strong hydrophilicity, improved dispersion, and good photostability. The SQDs were capable of detecting heavy metal ions Pb(II) and Bi(III) with detection limits of 0.020 μM and 0.25 μM, respectively, in the concentration range of 0.12 to 50 μM. Furthermore, SQDs exhibited bactericidal activity against both Gram-positive and Gram-negative bacteria at a minimum inhibitory concentration of 566-2265 μg mL(-1), suggesting their potential as antibacterial agents in biomedical and food packaging applications.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Applied
Swarup Roy, Tabli Ghosh, Wanli Zhang, Jong-Whan Rhim
Summary: PBAT is a promising bioplastic alternative to non-biodegradable plastics, and its functional films can improve the quality and lifespan of packaged foods. The review provides an overview of PBAT film fabrication methods, physical and functional properties, and biodegradability, as well as briefly discussing its application in real-time food packaging.
