Results 71 to 80 of about 6,174 (259)

Aptamer‐Directed Porous DNA Nanocomposite Hydrogel for Active Pulp Preservation: Immunomodulation, Stem Cell Recruitment and Reparative Dentinogenesis

Advanced Science, EarlyView.
This study presents an injectable DNA‐based porous hydrogel integrating catechol motifs and targeting aptamers for pulpitis management. Upon in situ crosslinking, the scaffold actively recruits endogenous dental pulp stem cells, restores redox homeostasis, and modulates immune responses.
Luhui Cai, Huan Yu, Zihan Ni, Kan Chen, I‐Chen Tsai, Zeyu Bao, Shuo Sun, Weichang Li, Yunhua Chen, Qiong Xu   +9 more
wiley   +1 more source

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

Advanced Science, EarlyView.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu, Zonglu Yao, Yuanhui Zhang, Huiyan Zhang, Lixin Zhao   +4 more
wiley   +1 more source

Crystal structure, thermal, redox, and EPR studies of copper(II) complexes with catechol-based quaternary ammonium salts

Chimica Techno Acta
Quaternary ammonium salts (QASs), acylhydrazones and catechols are well known for their antimicrobial, antioxidant and antitumor properties. Complexation of acylhydrazones and catechols with Cu(II) ions potentially leads to obtaining compounds with ...
Azamat Bikmukhametov, Маksim Zhernakov, Mikhail Bukharov, Yury Kuzin, Daut Islamov, Artur Khannanov, Alexander Gerasimov, Liana Zubaidullina, Alexander Rodionov, Pavel Padnya, Ivan Stoikov   +10 more
doaj   +1 more source

From catechol‐tocopherol to catechol‐hydroquinone polyphenolic antioxidant hybrids

Heteroatom Chemistry, 2018
AbstractMultidefence antioxidants represent a valuable solution for the protection against oxidative stress. From the planned synthesis of a catechol‐tocopherol hybrid, we isolated a catechol‐hydroquinone hybrid through a BBr3‐mediated benzochromene‐fluoren‐1‐ol transposition.
Caterina Viglianisi, Stefano Menichetti, Paola Morelli, Andrea Baschieri, Riccardo Amorati   +4 more
openaire   +2 more sources

A Bone Marrow–Mimetic Hydrogel Enables Dual‐Phase Hemostasis and Vascularized Osteogenesis for Cranial Defects

Advanced Science, EarlyView.
A biomimetic, fiber‐reinforced hydrogel (FE‐PDA@Fib/Gel‐TG) that enables dual‐phase cranial defect repair. The system provides: instant hemostasis in the early stage, and sustained co‐delivery of pro‐angiogenic and osteogenic signals for synergistic vascularized bone regeneration.
Lingbin Che, Donghong Li, Huan Zhang, Tingting Xu, Juhan Li, Xuanzhou Chen, Louis D. Zhang, Shuguang Wang, Dianwen Song, Dongyong Sha   +9 more
wiley   +1 more source

Supramolecular Assembly of Stepped‐Persistent ROS Nanogenerator for Sustained Tumor Immunotherapy

Advanced Science, EarlyView.
ROS catalytic systems often fail to achieve both effective tumor elimination and persistent immune activation due to their monotonous ROS production profiles. A stepped‐persistent ROS nanogenerator was developed by supramolecularly assembling multiple ROS generation modules within a nanofiber structure to simultaneously extend ROS generation duration ...
Zhenqiang Wang, Ming Qin, Wenjing Lai, Shiwen Chen, Fengling Wang, Dandan Xie, Maohua Chen, Changpeng Hu, Kui Wang, Rong Zhang, Guobing Li   +10 more
wiley   +1 more source

Novel Synthesis of Prenylated Phenols and Their Antioxidant Properties

Natural Product Communications, 2006
A novel method for the prenylation of phenols has been developed using 2-methyl-but-3-ene-2-ol as the prenylating agent in the presence of Amberlyst 15.
Soumyaditya Mula, Birija S. Patro, Govind P. Kalena, Subrata Chattopadhyay   +3 more
doaj   +1 more source

A Supramolecular Reversible and Anisotropic Conductive Adhesive for Flexible Electronics

Advanced Science, EarlyView.
Supramolecular network‐based nanocomposites are developed as a stretchable conductive adhesive for flexible electronics. It's as convenient as traditional solders and constructs anisotropic conductive and robust stretchable connections among diverse soft/rigid materials.
Tongtong Li, Yahui Zhao, Ying Zhang, Yuquan Li, Xuan Ye, Hongyun Qiu, Zhaorui Zhang, Jiang‐Fei Xu, Shaobo Ji   +8 more
wiley   +1 more source

Studies of a ring-cleaving dioxygenase illuminate the role of cholesterol metabolism in the pathogenesis of Mycobacterium tuberculosis.

PLoS Pathogens, 2009
Mycobacterium tuberculosis, the etiological agent of TB, possesses a cholesterol catabolic pathway implicated in pathogenesis. This pathway includes an iron-dependent extradiol dioxygenase, HsaC, that cleaves catechols.
Katherine C Yam, Igor D'Angelo, Rainer Kalscheuer, Haizhong Zhu, Jian-Xin Wang, Victor Snieckus, Lan H Ly, Paul J Converse, William R Jacobs, Natalie Strynadka, Lindsay D Eltis   +10 more
doaj   +1 more source

An Edible Biohybrid Platform Accomplishes In Situ Fenton‐Mediated Enteral Nanoplastics Aging and Excretion

Advanced Science, EarlyView.
An edible biohybrid platform triggers nanoplastics (NPs) aging and agglomeration by in situ generating hydroxyl radicals within the intestine. The enlarged NPs are unable to penetrate the intestine and are subsequently excreted. Simultaneously, probiotic biofilms reinforce the intestinal barrier.
Su Zhou, Anran Yan, Haowei Guo, Ping Chen, Qiang Chu   +4 more
wiley   +1 more source