scholarly journals Recent advances in polymer-metallic composites for food packaging applications

2021 ◽  
Vol 109 ◽  
pp. 230-244
Author(s):  
Diogo Videira-Quintela ◽  
Olga Martin ◽  
Gemma Montalvo
Author(s):  
Muhammad Zubair ◽  
Rehan Ali Pradhan ◽  
Muhammad Arshad ◽  
Aman Ullah

2021 ◽  
pp. 107328
Author(s):  
María Flórez ◽  
Esther Guerra-Rodríguez ◽  
Patricia Cazón ◽  
Manuel Vázquez

Author(s):  
Ahmed I. Osman ◽  
Mahmoud Hefny ◽  
M. I. A. Abdel Maksoud ◽  
Ahmed M. Elgarahy ◽  
David W. Rooney

AbstractHuman activities have led to a massive increase in $$\hbox {CO}_{2}$$ CO 2 emissions as a primary greenhouse gas that is contributing to climate change with higher than $$1\,^{\circ }\hbox {C}$$ 1 ∘ C global warming than that of the pre-industrial level. We evaluate the three major technologies that are utilised for carbon capture: pre-combustion, post-combustion and oxyfuel combustion. We review the advances in carbon capture, storage and utilisation. We compare carbon uptake technologies with techniques of carbon dioxide separation. Monoethanolamine is the most common carbon sorbent; yet it requires a high regeneration energy of 3.5 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Alternatively, recent advances in sorbent technology reveal novel solvents such as a modulated amine blend with lower regeneration energy of 2.17 GJ per tonne of $$\hbox {CO}_{2}$$ CO 2 . Graphene-type materials show $$\hbox {CO}_{2}$$ CO 2 adsorption capacity of 0.07 mol/g, which is 10 times higher than that of specific types of activated carbon, zeolites and metal–organic frameworks. $$\hbox {CO}_{2}$$ CO 2 geosequestration provides an efficient and long-term strategy for storing the captured $$\hbox {CO}_{2}$$ CO 2 in geological formations with a global storage capacity factor at a Gt-scale within operational timescales. Regarding the utilisation route, currently, the gross global utilisation of $$\hbox {CO}_{2}$$ CO 2 is lower than 200 million tonnes per year, which is roughly negligible compared with the extent of global anthropogenic $$\hbox {CO}_{2}$$ CO 2 emissions, which is higher than 32,000 million tonnes per year. Herein, we review different $$\hbox {CO}_{2}$$ CO 2 utilisation methods such as direct routes, i.e. beverage carbonation, food packaging and oil recovery, chemical industries and fuels. Moreover, we investigated additional $$\hbox {CO}_{2}$$ CO 2 utilisation for base-load power generation, seasonal energy storage, and district cooling and cryogenic direct air $$\hbox {CO}_{2}$$ CO 2 capture using geothermal energy. Through bibliometric mapping, we identified the research gap in the literature within this field which requires future investigations, for instance, designing new and stable ionic liquids, pore size and selectivity of metal–organic frameworks and enhancing the adsorption capacity of novel solvents. Moreover, areas such as techno-economic evaluation of novel solvents, process design and dynamic simulation require further effort as well as research and development before pilot- and commercial-scale trials.


2021 ◽  
pp. 131738
Author(s):  
Hao Cheng ◽  
Hao Xu ◽  
David Julian McClements ◽  
Long Chen ◽  
Aiquan Jiao ◽  
...  

2013 ◽  
Vol 42 ◽  
pp. 99-124 ◽  
Author(s):  
Héctor Gallart-Ayala ◽  
Oscar Núñez ◽  
Paolo Lucci

2021 ◽  
pp. 131026
Author(s):  
Yaowen Liu ◽  
Dur E Sameen ◽  
Saeed Ahmed ◽  
Yue Wang ◽  
Rui Lu ◽  
...  

2021 ◽  
Vol 22 (20) ◽  
pp. 10952
Author(s):  
Małgorzata Kus-Liśkiewicz ◽  
Patrick Fickers ◽  
Imen Ben Tahar

Recent advances in the synthesis of metal nanoparticles (MeNPs), and more specifically gold nanoparticles (AuNPs), have led to tremendous expansion of their potential applications in different fields, ranging from healthcare research to microelectronics and food packaging. The properties of functionalised MeNPs can be fine-tuned depending on their final application, and subsequently, these properties can strongly modulate their biological effects. In this review, we will firstly focus on the impact of MeNP characteristics (particularly of gold nanoparticles, AuNPs) such as shape, size, and aggregation on their biological activities. Moreover, we will detail different in vitro and in vivo assays to be performed when cytotoxicity and biocompatibility must be assessed. Due to the complex nature of nanomaterials, conflicting studies have led to different views on their safety, and it is clear that the definition of a standard biosafety label for AuNPs is difficult. In fact, AuNPs’ biocompatibility is strongly affected by the nanoparticles’ intrinsic characteristics, biological target, and methodology employed to evaluate their toxicity. In the last part of this review, the current legislation and requirements established by regulatory authorities, defining the main guidelines and standards to characterise new nanomaterials, will also be discussed, as this aspect has not been reviewed recently. It is clear that the lack of well-established safety regulations based on reliable, robust, and universal methodologies has hampered the development of MeNP applications in the healthcare field. Henceforth, the international community must make an effort to adopt specific and standard protocols for characterisation of these products.


Sign in / Sign up

Export Citation Format

Share Document