The excessive amount of global plastic produced over the past century, together with poor waste management, has raised concerns about environmental sustainability. Plastic recycling has become a practical approach for diminishing plastic waste and maintaining sustainability among plastic waste management methods. Chemical and mechanical recycling are the typical approaches to recycling plastic waste, with a simple process, low cost, environmentally friendly process, and potential profitability. Several plastic materials, such as polypropylene, polystyrene, polyvinyl chloride, high-density polyethylene, low-density polyethylene, and polyurethanes, can be recycled with chemical and mechanical recycling approaches. Nevertheless, due to plastic waste’s varying physical and chemical properties, plastic waste separation becomes a challenge. Hence, a reliable and effective plastic waste separation technology is critical for increasing plastic waste’s value and recycling rate. Integrating recycling and plastic waste separation technologies would be an efficient method for reducing the accumulation of environmental contaminants produced by plastic waste, especially in industrial uses. This review addresses recent advances in plastic waste recycling technology, mainly with chemical recycling. The article also discusses the current recycling technology for various plastic materials.
Beras merupakan makanan utama bagi masyarakat Indonesia. Kebutuhan akan beras, melalui tanaman padi meningkat seiring dengan peningkatan jumlah penduduk di Indonesia. Namun, ketersediaan lahan untuk bercocok tanam, terus berkurang dari tahun ke tahun. Sistem salibu merupakan salah satu metode yang dapat diterapkan untuk peningkatan produktivitas padi yang efektif dan ramah lingkungan. Berbagai macam strategi untuk mendukung sistem salibu dalam peningkatan nilai produksi tanaman padi telah diterapkan, diantaranya perlakuan waktu pemotongan tunggul, perlakuan tinggi pemotongan tunggul, manajemen air, penggunaan pupuk, dan penggunaan varietas unggul. Melalui tulisan ini diharapkan dapat memberikan informasi tentang sistem salibu padi dan strategi peningkatan produktivitasnya.
Recently, a unique behavior of T7 RNA polymerase has expanded its functionality as a biosensing platform. Various biosensors utilizing T7 RNA polymerase, combined with fluorescent aptamers, electrochemical probes, or CRISPR/Cas systems, have been developed to detect analytes, including nucleic acids and non-nucleic acid target, with high specificity and low detection limits. Each approach demonstrates unique strengths, such as real-time monitoring and minimal interference, but also presents challenges in stability, cost, and reaction optimization. This review provides an overview of T7 RNA polymerase's role in biosensing technology, highlighting its potential to advance diagnostics and molecular detection in diverse fields.