Results 101 to 110 of about 80,958 (253)

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

Angewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley, Michael Rust, Moritz Wagner, Ida R. Hipfinger, Paul J. N. Böhm, Cora L. Dieterich, Christopher M. Field, Michael J. Page, Jeremy G. Owen, Robert A. Keyzers, Shinichi Sunagawa, Jörn Piel   +11 more
wiley   +2 more sources

Self‐Adaptive Biomimetic Nanocomposite Hydrogel Orchestrates Dual‐Targeting and On‐Demand H2S Gasotransmission for Multifactorial Diabetic Wound Therapy

Advanced Science, EarlyView.
A self‐adaptive and biomimetic nanocomposite hydrogel is engineered to orchestrate dual‐targeting and on‐demand H2S gasotransmission for multifactorial diabetic wound therapy. By seamlessly integrating antibacterial, antioxidant, anti‐inflammatory, immunoregulatory, and pro‐angiogenic functions within a single platform, this hydrogel dynamically ...
Kefan Wu, Xiaoxue Yang, Yonghang Liu, Yi Xiao, Shiyu Meng, Ao Li, Yi Zhun Zhu, Hui Guo, Xiaolin Wang   +8 more
wiley   +1 more source

pH‐Driven Two‐Stage Conformational Switching Activates an Acid‐Responsive Chaperone

Angewandte Chemie, EarlyView.
AchC is an ATP‐independent, pH‐responsive chaperone. AchC functions as a molecular switch, sensing pH changes and undergoing a two‐stage conformational transition: C‐terminal extension (colored in yellow) loosening at mild pH 4.0–5.5 and monomerization at strong acidic pH 3.0.
Soojeong Ham, Yeon‐Ju Jung, Hyunhee Kim, Sun‐Shin Cha, Changhan Lee   +4 more
wiley   +2 more sources

Porphyrin‐Based Porous Materials for Antibacterial Applications

Advanced Science, EarlyView.
Porphyrin‐based porous materials have excellent photophysical properties and tunable structures for high‐efficiency antibacterial therapy. This review comprehensively discusses the structural design strategies and synthetic pathways of the four main types of porphyrin‐based porous materials, summarizes their cross‐domain antimicrobial applications, and
Xiao‐Xue Liang, Xin Li, Ying Xiong, Xin Wang, Ying‐Wei Yang   +4 more
wiley   +1 more source

Porcupine‐Quill‐Inspired Shape‐Morphing Biointerfaces Disassemble Biofilms

Advanced Science, EarlyView.
A porcupine‐spine‐inspired dynamic offensive bio‐interface is developed for active biofilm disassembly. By coupling electrically driven nano‐dagger penetration with light‐triggered ROS generation, the surface overcomes the passive limitations of conventional mechano‐bactericidal topographies, achieving near‐complete biofilm eradication, strong ...
Feng Qian, Muqiu Xia, Ziyu Wang, Xinyuan Jia, Jinke Yin, Mengyu Fu, Xue Zhang, Xiao‐Lei Shi, Shiqiang Chen, Ning Wang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

A Chiral Virus‐Like Nanoplatform That Broadly Mediates Antibiotic Delivery to the Brain for Bacterial Meningitis Therapy

Advanced Science, EarlyView.
Chiral virus‐mimicking mesoporous silica nanostructures (CVSNs) efficiently transport diverse antibiotics across the blood–brain barrier (BBB) into brain parenchyma and cerebrospinal fluid. By enhancing delivery to microglia and astrocytes, CVSNs improve antibiotic bioavailability and therapeutic efficacy against both Gram‐negative and Gram‐positive ...
Qianqian Xu, Xuting Zheng, Huinan Tong, Ying Liu, Xiaoxi Fan, Miao Xu, Ziyan Zhang, Li Zhang, Mingyan Liu, Ting Du, Heran Li, Guojun Liu   +11 more
wiley   +1 more source

Varronia curassavica Jarq. Essential Oils Inhibit the Formation of the Biofilm of Xanthomonas campestris pv. campestris in vitro.

Brazilian Archives of Biology and Technology
The aim of this study was to investigate the anti-biofilm activity of two essential oils from Varronia curassavica Jaq. Two genotypes (VCUR-202 and VCUR-302), previously identified as exhibiting high antimicrobial activity against Xanthomonas campestris,
Rafael Salomão da Silva, Mayara Mendes Gonçalves de Oliveira, Nikolas Emanuel Chaves-Silva, Silmara Caldas Santos, Viviane Talamini, Euler Araujo dos Santos, Arie Fitzgerald Blank, Roberta Pereira Miranda Fernandes   +7 more
doaj   +1 more source

Phase‐Programmed Microneedles Enable Sequential Hydrogen and Quercetin Release for Scar‐Reduced Regeneration of Burn Wounds

Advanced Science, EarlyView.
A phase‐programmed microneedle patch, comprising a poly (lactic‐co‐glycolic acid) (PLGA) shell and a sulfobutylether‐β‐cyclodextrin (SBECD) core, is designed for sequential hydrogen and quercetin release for scar‐reduced regeneration of burn wounds. ABSTRACT Burn wounds complicated by bacterial infection and fibrotic scarring remain a major clinical ...
Yongnian Zeng, Zhigang Chu, Huiyuan Yang, Wen Zhang, Peng Jiang, Jiapeng Lei, Siyu Zhang, Qiongfang Ruan, Shuhua Liu, Wei Li   +9 more
wiley   +1 more source

The Interplay Between Molybdopterin Synthase and Metal Metabolism Contributes to Pathogenicity in Acinetobacter baumannii

Advanced Science, EarlyView.
Pathogenic Acinetobacter baumannii scavenges metal ions as nutritional elements to survive within the host. This study demonstrates that molybdopterin synthase is essential for pathogenesis and full virulence during infection. Molybdopterin synthase subunit MoaE constitutes an intrinsically disordered C‐terminal histidine rich tail, which mediates ...
Min Jiao, Wenbo He, Zhenlin Ouyang, Ruochen Wang, Jiaxin Zhang, Xin Liu, Yiting Jing, Qinyue Yu, Xiaoyu He, Qian Qin, Litao Guo, Peter M. Hwang, Fang Zheng, Yurong Wen   +13 more
wiley   +1 more source

Antibiofilm Activity of Areca Nut (Areca catechu L.) Extract and Fractions against Escherichia coli ATCC 25922

Journal of Nuts
Escherichia coli is one of the pathogenic bacteria that is resistant to antibiotics. Antibiotic resistance does not only occur due to antibiotics failing, but changes in the bacteria themselves also play an important role.
Adrianz Mario Tethool, Ismi Rahmawati, Opstaria Saptarini, Mustika Endah Pratiwi, Claudius Hendraman B. Tobi   +4 more
doaj