With the emergence of challenges in the environmental degradation and resource scarcity fields, the research of biobased self-healing polyurethane (BSPU) has become a prevailing trend in the technology of the polyurethane industry and a promising direction for developing biomass resources. Here, the production of BSPU from lignocellulose, vegetable oil, chitosan, collagen, and coumarin is classified, and the principles of designing polyurethane based on compelling examples using the latest methods and current research are summarized. Moreover, the impact of biomass materials on self-healing and mechanical properties, as well as the tailored performance method, are presented in detail.
View Article and Find Full Text PDFCellulose nanocrystal (CNC) is a renewable resource derived from lignocellulosic materials, known for its optical permeability, biocompatibility, and unique self-assembly properties. Recent years have seen great progresses in cellulose nanocrystal-based chiral photonic materials. However, due to its inherent brittleness, cellulose nanocrystal shows limitations in the fields of flexible materials, optical sensors and food freshness testing.
View Article and Find Full Text PDFCorrection for 'Recent advances in self-healing polyurethane based on dynamic covalent bonds combined with other self-healing methods' by Ze-Wei An , , 2023, , 6505-6520, https://doi.org/10.1039/D2NR07110J.
View Article and Find Full Text PDFCellulose nanocrystal (CNC)-based chiral nematic structure is widely used in stimulus response and sensing. A popular area of research is enhancing the mechanical characteristics and environmental adaptability of chiral nematic materials. In this paper, a flexible photonic film with self-healing ability (FPFS) was prepared by combining waterborne polyurethane containing dynamic covalent disulfide bonds (SSWPU) with CNC.
View Article and Find Full Text PDFTo meet more application requirements, improving mechanical properties and self-healing efficiency has become the focus of current research on self-healing PU. The competitive relationship between self-healing ability and mechanical properties cannot be avoided by a single self-healing method. To address this problem, a growing number of studies have combined dynamic covalent bonding with other self-healing methods to construct the PU structure.
View Article and Find Full Text PDFSecretion of oxalic acid from roots is an important aluminum detoxification mechanism for many plants such as (rubber tree). However, the underlying molecular mechanism and oxalate transporter genes in plants have not yet been reported. In this study, the oxalate transporter candidate genes and from the rubber tree were cloned and preliminarily identified.
View Article and Find Full Text PDFTall fescue () is an important cool-season perennial forage grass that forms mutualistic symbioses with fungal endophytes. Physiological, biochemical and transcriptional comparisons were made between two tall fescue genotypes with contrasting drought tolerance (tolerant, T400, and sensitive, S279), either with or without endophyte (). Drought stress was applied by withholding watering until plants reached mild, moderate and severe stresses.
View Article and Find Full Text PDFSmall nucleolar RNAs (snoRNAs) are a class of conserved nuclear RNAs that play important roles in the modification of ribosomal RNAs (rRNAs) in plants. In rubber trees, rRNAs are run off with latex flow during tapping and need to be regenerated for maintaining the functions of the laticifer cells. SnoRNAs are expected to play essential roles in the regeneration of rRNAs.
View Article and Find Full Text PDFSalinity stress is an important cause of crop yield loss in many parts of the world. Here, we performed genome-wide association studies of salinity-stress responsive traits in 132 HapMap genotypes of the model legume Medicago truncatula. Plants grown in soil were subjected to a step-wise increase in NaCl concentration, from 0 through 0.
View Article and Find Full Text PDFThe rubber tree (Hevea brasiliensis Muell. Arg) is a tropical, perennial, woody plant that is susceptible to cold stress. In China, cold stress has been found to severely damage rubber plants in plantations in past decades.
View Article and Find Full Text PDFNat Plants
May 2016
The Para rubber tree (Hevea brasiliensis) is an economically important tropical tree species that produces natural rubber, an essential industrial raw material. Here we present a high-quality genome assembly of this species (1.37 Gb, scaffold N50 = 1.
View Article and Find Full Text PDFRubber trees (Hevea brasiliensis) are susceptible to low temperature and therefore are only planted in the tropical regions. In the past few decades, although rubber trees have been successfully planted in the northern margin of tropical area in China, they suffered from cold injury during the winter. To understand the physiological response under cold stress, we isolated a C-repeat binding factor 1 (CBF1) gene from the rubber tree.
View Article and Find Full Text PDFBiosci Biotechnol Biochem
February 2014
We have developed a time- and cost-effective method for isolating low molecular weight (LMW) RNA from plants. In our protocol, the isolation procedure can be completed within 3 h. Polyethylene glycol (PEG) and absolute ethanol are used to isolate LMW RNA, and the LMW RNA yields were >80 µg/g of fresh-weight tissues for several of the plant species tested.
View Article and Find Full Text PDFThree thousand and ninety Unigenes were obtained from 10 778 Hevea brasiliensis ESTs. Four hundred and thirty SSRs were distributed in 353 Unigenes, which accounts for 11.42% of the total number of Unigenes.
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