scholarly journals Recent Advances on Lignocellulosic-Based Nanopesticides for Agricultural Applications

2021 ◽  
Vol 3 ◽  
Author(s):  
Pedro Henrique Correia de Lima ◽  
Débora Ribeiro Antunes ◽  
Mariana Monteiro de Lima Forini ◽  
Montcharles da Silva Pontes ◽  
Bruno Dufau Mattos ◽  
...  
Keyword(s):  
Controlled Release ◽  
Agricultural Development ◽  
Low Cost ◽  
Building Blocks ◽  
Critical Discussion ◽  
Plant Tissues ◽  
Recent Advances ◽  
Future Challenges ◽  
Agricultural Applications ◽  
Current Engineering

Controlled release systems of agrochemicals have been developed in recent years. However, the design of intelligent nanocarriers that can be manufactured with renewable and low-cost materials is still a challenge for agricultural applications. Lignocellulosic building blocks (cellulose, lignin, and hemicellulose) are ideal candidates to manufacture ecofriendly nanocarriers given their low-cost, abundancy and sustainability. Complexity and heterogeneity of biopolymers have posed challenges in the development of nanocarriers; however, the current engineering toolbox for biopolymer modification has increased remarkably, which enables better control over their properties and tuned interactions with cargoes and plant tissues. In this mini-review, we explore recent advances on lignocellulosic-based nanocarriers for the controlled release of agrochemicals. We also offer a critical discussion regarding the future challenges of potential bio-based nanocarrier for sustainable agricultural development.

scholarly journals Current State and Challenges of Natural Fibre-Reinforced Polymer Composites as Feeder in FDM-Based 3D Printing

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2289
Author(s):  
Nishata Royan Rajendran Royan ◽  
Jie Sheng Leong ◽  
Wai Nam Chan ◽  
Jie Ren Tan ◽  
Zainon Sharmila Binti Shamsuddin
Keyword(s):  
Mechanical Properties ◽  
Natural Fibre ◽  
Critical Discussion ◽  
Fused Deposition Modelling ◽  
Preparation Methods ◽  
Fused Deposition ◽  
Current State ◽  
Future Challenges ◽  
Raster Angle ◽  
Fibre Reinforced Polymer

As one of the fastest-growing additive manufacturing (AM) technologies, fused deposition modelling (FDM) shows great potential in printing natural fibre-reinforced composites (NFRC). However, several challenges, such as low mechanical properties and difficulty in printing, need to be overcome. Therefore, the effort to improve the NFRC for use in AM has been accelerating in recent years. This review attempts to summarise the current approaches of using NFRC as a feeder for AM. The effects of fibre treatments, composite preparation methods and addition of compatibilizer agents were analysed and discussed. Additionally, current methods of producing feeders from NFRCs were reviewed and discussed. Mechanical property of printed part was also dependent on the printing parameters, and thus the effects of printing temperature, layer height, infill and raster angle were discussed, and the best parameters reported by other researchers were identified. Following that, an overview of the mechanical properties of these composites as reported by various researchers was provided. Next, the use of optimisation techniques for NFRCs was discussed and analysed. Lastly, the review provided a critical discussion on the overall topic, identified all research gaps present in the use of NFRC for AM processes, and to overcome future challenges.

Recent advances in applications of nano-agrochemicals for sustainable agricultural development

2021 ◽  
Author(s):  
H Singh ◽  
Archita Sharma ◽  
Sanjeev Kumar ◽  
Shailendra Kumar Arya ◽  
Neha Bhardwaj ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Agricultural Practices ◽  
Agricultural Pollution ◽  
Recent Advances ◽  
By Products

Modern agricultural practices have triggered the process of agricultural pollution. This process can cause the degradation of the eco-systems, land, and environment owing to the modern-day by-products of agriculture. The...

scholarly journals Recent Advances of Photocatalytic Application in Water Treatment: A Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1804
Author(s):  
Guangmin Ren ◽  
Hongtao Han ◽  
Yixuan Wang ◽  
Sitong Liu ◽  
Jianyong Zhao ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Water Treatment ◽  
High Efficiency ◽  
Low Cost ◽  
Great Promise ◽  
Rapid Progress ◽  
Recent Advances ◽  
Photocatalytic Application ◽  
Oxidation Technology ◽  
Performance Challenges

Photocatalysis holds great promise as an efficient and sustainable oxidation technology for application in wastewater treatment. Rapid progress developing novel materials has propelled photocatalysis to the forefront of sustainable wastewater treatments. This review presents the latest progress on applications of photocatalytic wastewater treatment. Our focus is on strategies for improving performance. Challenges and outlooks in this promising field are also discussed. We hope this review will help researchers design low-cost and high-efficiency photocatalysts for water treatment.

Recent advances in CO2 bubble-generating carrier systems for localized controlled release

Biomaterials ◽  
2017 ◽  
Vol 133 ◽  
pp. 154-164 ◽  
Author(s):  
Yu-Jung Lin ◽  
Chieh-Cheng Huang ◽  
Wei-Lin Wan ◽  
Ching-Hua Chiang ◽  
Yen Chang ◽  
...  
Keyword(s):  
Controlled Release ◽  
Recent Advances ◽  
Carrier Systems

α-Aminoboronates: recent advances in their preparation and synthetic applications

2021 ◽  
Author(s):  
Wenbo Ming ◽  
Harjeet S. Soor ◽  
Xiaocui Liu ◽  
Alina Trofimova ◽  
Andrei K. Yudin ◽  
...  
Keyword(s):  
Building Blocks ◽  
Synthetic Methods ◽  
Mechanistic Explanations ◽  
Recent Advances

This review summarizes new methodology for the synthesis of α-aminoboronates, including asymmetric synthetic methods and mechanistic explanations of reactivity. Applications of α-aminoboronates as versatile synthetic building blocks are also discussed.

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