Biodegradation of commercial polyester polyurethane by a soil-borne bacterium Bacillus velezensis MB01B: Efficiency, degradation pathway, and in-situ remediation in landfill soil DOI
Jie Zeng, Jun Yao,

Weiming Zhang

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 363, P. 125300 - 125300

Published: Nov. 12, 2024

Language: Английский

Ecotoxicological bioassays with terrestrial plants: a holistic view of standards, guidelines, and protocols DOI
Leonardo Mendes da Silva, Larissa Fonseca Andrade–Vieira

Journal of Toxicology and Environmental Health Part B, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 39

Published: Jan. 5, 2025

Terrestrial and aquatic ecosystems face various chemicals that might induce acute and/or long-term harm. To assess these impacts, ecotoxicological bioassays are essential. However, using animals, particularly mammals, costly, time-consuming, raise ethical concerns. In this context, terrestrial plants emerge as a viable alternative to conventional assays. Thus, the aim of review was address history evolution plant bioassays, highlighting main regulations, guidelines, protocols governing use in tests. Initially, were employed cytogenotoxic effects chemicals, gaining prominence with GENE-TOX program 80s. Subsequently, used allelopathy studies aimed examine ecotoxicity pesticides soil. Currently, regulated by specific standards, such ASTM E1963–22, EPA 600/3–88/029, EPS 1/RM/45, ISO 11269-1, 11269-2, 17126, 18763, 29200, 22030, OECD-208, OECD-227, OCSPP 850.4100, 850.4230, 850.4800 OPPTS 850.4200. The existing standardize greenhouse lab environments, duration tests varies from hours months. parameters be analyzed after exposure include germination percentage, survival rate, root length, aerial part fresh mass exposed plants, phytotoxicity symptoms. addition, absorption rate substances genotoxic mutagenic also assessed. Therefore, data demonstrate represent an important tool analysis environmental risks associated serve crucial allies modern ecotoxicology.

Language: Английский

Citations

2

From biofilms to biocatalysts: Innovations in plastic biodegradation for environmental sustainability DOI

Slavica Porobic Katnic,

Ram K. Gupta

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 374, P. 124192 - 124192

Published: Jan. 21, 2025

Language: Английский

Citations

1

Polyurethane degradation by extracellular urethanase producing bacterial isolate Moraxella catarrhalis strain BMPPS3 DOI
Baskaran Maheswaran, Joseph Sebastin Raj, Pandiselvam Pandiyarajan

et al.

Environmental Research, Journal Year: 2024, Volume and Issue: 251, P. 118631 - 118631

Published: March 5, 2024

Language: Английский

Citations

8

High biodegradability of microbially-derived dissolved organic matter facilitates arsenic enrichment in groundwater: Evidence from molecular compositions and structures DOI
Yao Li, Huaming Guo, Bo Zhao

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134133 - 134133

Published: March 27, 2024

Language: Английский

Citations

6

Foam‐to‐Foam Recycling Potential of PU‐Foams by Integration of Amino Esters DOI
Hiba Kassem,

Emir H. Samat,

Lucie Imbernon

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Abstract The increasing market demand for flexible polyurethane foams (PUFs) is prompting the academic and industrial community to seek solutions their end‐of‐life management. In this study, issue addressed by incorporating β‐amino ester (BAE) moieties into foam structure. This addition results in hybrid PU‐BAE that can be thermally reprocessed chemically recycled, with cell sizes ranging from 780 990 µm densities between 90 150 kg m −3 . These demonstrate thermomechanical reprocessability, yielding stable elastomers, glass transition temperature values 14 25 °C. Stress relaxation experiments reveal remarkably fast times these elastomers (23 s at 160 °C). Furthermore, a systematic investigation of chemical recyclability via glycosylation conducted under mild conditions, achieving complete disintegration within 20 min 65 Finally, recycled product converted again, closed loop foam‐to‐foam recycling process. findings indicate integration BAE PUFs leads an enhanced rate, providing promising avenue addressing concerns PUF‐applications.

Language: Английский

Citations

4

Bio‐Based Elastomers: Design, Properties, and Biomedical Applications DOI Open Access
Qingsheng Liu, Pengfei Lou, Zhentao Sun

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract To reduce carbon footprint and human dependence on fossil fuels, the field of bio‐based polymers has undergone explosive growth in recent years. Among them, elastomers have gained tremendous attention for their inherent softness, high strain, resilience. In this review, progress representative derived from molecular building blocks biopolymers are recapitulated, with an emphasis design, synthesis approaches, mechanical performance. The performance‐advantaged properties elastomers, including immune modulation, biocompatibility, biodegradability also explored. Furthermore, biomedical applications wound dressing, cardiovascular, nerve repair, bone biosensors exemplified. Lastly, challenges outlooks development discussed. This review aims to offer readers valuable insights into potential as viable alternatives petroleum‐based counterparts, supporting transition toward a more sustainable future.

Language: Английский

Citations

0

Microbial Biodegradation of Synthetic Polyethylene and Polyurethane Polymers by Pedospheric Microbes: Towards Sustainable Environmental Management DOI Open Access

Maryam Najam,

Sana Javaid, Shazia Iram

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(2), P. 169 - 169

Published: Jan. 11, 2025

This study attempted to isolate and identify pedospheric microbes originating in dumpsites utilized them for the degradation of selected synthetic polymers first time a cost-effective, ecologically favorable sustainable manner. Specifically, low-density polyethylene (LDPE) polyurethane (PUR) were converted by isolated fungi, i.e., Aspergillus flavus, A terreus, A. clavatus, nigers bacterial coccus filamentous assessed biotransformative assay under simulated conditions. Commendable biodegradative potentials exhibited against that analyzed over span 30 days. Among fungal microbes, highest activity was achieved niger, expressing 55% 40% conversion LDPE PUR, respectively. In case strains, 50% PUR coccus. Fourier transform infrared spectroscopy (FT-IR) thermogravimetric analysis (TGA) analyze degradative patterns terms vibrational thermal characteristics, stereomicroscopic performed visual assessment morphological variations. Profound structural transformations detected FT-IR spectra TGA thermograms microbes. Stereomicroscopic also indicative remarkable transformation surface morphology these after comparison reference samples not treated with any The results are supportive utilization as environmental remediators cleanup persistent polymeric toxins. current work can be further extended successful optimization augmented percentages using other adoption biotechnological tools at practical level.

Language: Английский

Citations

0

Biodegradation of commercial polyester polyurethane by a soil-borne bacterium Bacillus velezensis MB01B: Efficiency, degradation pathway, and in-situ remediation in landfill soil DOI
Jie Zeng, Jun Yao,

Weiming Zhang

et al.

Environmental Pollution, Journal Year: 2024, Volume and Issue: 363, P. 125300 - 125300

Published: Nov. 12, 2024

Language: Английский

Citations

2