Results 61 to 70 of about 167,505 (302)

Bio‐Inspired Biopolymeric Implantable Platform for Localized and Sustained Drug Delivery in Solid Tumor Treatment

Advanced Functional Materials, EarlyView.
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia, Constantine Vogiatzis, Alejandra Planells‐Devesa, Emre Dikici, Caroline Vieira Maluf, Vasudev Vivekanand Nayak, Paulo G. Coelho, Lukasz Witek, Alicia Bilbao, Daniel Bilbao, Prasoon Mohan, Sapna Deo, Sylvia Daunert   +12 more
wiley   +1 more source

Product Distribution of Chemical Product Using Catalytic Depolymerization of Lignin

Bulletin of Chemical Reaction Engineering & Catalysis, 2020
Lignin depolymerization is a very promising process which can generate value-added products from lignin raw materials. The main objective of lignin depolymerization is to convert the complex molecules of lignin into small molecules.
Damayanti Damayanti, Yeni Ria Wulandari, Ho-Shing Wu   +2 more
doaj   +1 more source

Toward Circular Recycling of Polyurethanes: Depolymerization and Recovery of Isocyanates

JACS Au
We report a depolymerization strategy to nearly quantitatively regenerate isocyanates from thermoplastic and thermoset polyurethanes (PUs) and then resynthesize PUs using the recovered isocyanates.
Robert M. O’Dea, Mridula Nandi, Genevieve Kroll, Jackie Arnold, L. Korley, Thomas H. Epps   +5 more
semanticscholar   +1 more source

Make‐Use‐Remake: Toward Indefinite Low‐Temperature Material Loops

Advanced Functional Materials, EarlyView.
We introduce a regenerable materials platform built from microparticles bound by a temperature‐responsive polymer shell, enabling strong, processable structures from diverse feedstocks. The material is shaped at low temperatures (80°C) using common manufacturing methods and reprocessed repeatedly in the presence of water, demonstrating stable ...
Nikola Křivánková, Wouter van der Wijngaart, Ulrica Edlund   +2 more
wiley   +1 more source

Status and Applicability of Lignin Depolymerization Technology [PDF]

대한환경공학회지
To address the issues of global warming and the depletion of fossil fuels, there has been an increasing effort to convert lignin, which is abundantly obtained from lignocellulosic biomass, into high-value products.
Ui Jin Seo, Young-Tae Jo, Jeong-Hun Park
doaj   +1 more source

Selective and Sequential Catalytic Chemical Depolymerization and Upcycling of Mixed Plastics

ACS Macro Letters
Chemical recycling to monomer (CRM) provides a useful technique to allow for polymer-to-monomer-to-polymer circular economies. A significant challenge remains, however, in the treatment of mixed plastics by CRM in which unselective depolymerization ...
A. Spicer, Arianna Brandolese, Andrew P. Dove   +2 more
semanticscholar   +1 more source

Lonicera japonica‐Derived Nanovesicles Ameliorate Acute Lung Injury by Suppressing Neutrophil Extracellular Traps Formation in Mice

Advanced Healthcare Materials, EarlyView.
(A) Isolation and purification of LDNVs. (B) Establishment of the ALI model and LDNVs delivery. (C) Therapeutic mechanisms of LDNVs in treating ALI. This scheme figure was drawn by Figdraw, ID: IUIIO21222. ABSTRACT Acute lung injury (ALI) is a lethal respiratory disease.
Xi Lin, Jian Lin, Yezi Zhang, Xinyan Zhang, Xinghua Liu, Hongying Cao, Huan Shen, Jianming Liang, Zhenhua Dai, Siyuan Xu, Xingdong Lin   +10 more
wiley   +1 more source

Comparsion of Catalyst Effectiveness in Different Chemical Depolymerization Methods of Poly(ethylene terephthalate)

Molecules, 2023
This paper presents an overview of the chemical recycling methods of polyethylene terephthalate (PET) described in the scientific literature in recent years.
Marcin Muszyński, Janusz Nowicki, Mateusz Zygadło, Gabiela Dudek   +3 more
doaj   +1 more source

Research Progress on Lignin Depolymerization Strategies: A Review

Polymers
As the only natural source of aromatic biopolymers, lignin can be converted into value-added chemicals and biofuels, showing great potential in realizing the development of green chemistry.
Zhengfei Pei, Xiaofang Liu, Jiasheng Chen, Huan Wang, Hu Li   +4 more
semanticscholar   +1 more source

Mechanically Robust and Depolymerizable Polyesters With Near‐Complete Monomer Recovery for Circular Additive Manufacturing

Advanced Materials, EarlyView.
A sustainable δ‐lactone‐based polymer platform enables multimodal additive manufacturing through DLP, DIW, and FFF, combining tunable crystallinity, photocurable networks, mechanical robustness, and functional response. The printed materials can be mechanically reprocessed and chemically depolymerized into recoverable monomers, demonstrating a closed ...
Farzad Gholami, Rampi Ramprasad, H. Jerry Qi   +2 more
wiley   +1 more source