Results 121 to 130 of about 36,778 (291)

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Limit to General Relativity in f(R) theories of gravity

, 2007
We discuss two aspects of f(R) theories of gravity in metric formalism. We first study the reasons to introduce a scalar-tensor representation for these theories and the behavior of this representation in the limit to General Relativity, f(R)--> R.
C. M. Will, C. W. Misner, Gonzalo J. Olmo, T. Padmanabhan   +3 more
core   +1 more source

Molecular characteristics of mcr-1-carrying plasmids and new mcr-1 variant recovered from polyclonal clinical Escherichia coli from Argentina and Canada

PLOS ONE, 2017
لقد ميزنا تسعة بلازميدات mcr -1 - harboring من عزلات الإشريكية القولونية السريرية الموصوفة سابقًا في الأرجنتين وكندا. حملت ثلاثة من هذه البلازميدات متغير mcr -1 يسمى هنا mcr-1.5. لم تكن جميع عزلات الإشريكية القولونية هذه مرتبطة بالنسخة وتم استردادها في سنوات ومواقع مختلفة.
Nathalie Tijet, Diego Faccone, Melina Rapoport, Christine Seah, Fernando Pasterán, Paola Ceriana, Ezequiel Albornoz, Alejandra Corso, Alejandro Petroni, Roberto G. Melano   +9 more
openaire   +5 more sources

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source

Discovery of H2 Receptor Antagonists as Colistin Enhancers by Targeting Acid Stress Response

Advanced Science, EarlyView.
This study identifies YqgB as a key target for restoring colistin susceptibility in mcr‐positive pathogens under acidic conditions by remodeling phospholipid composition and reducing LPS modification. Deep learning‐based screening reveals H2 receptor antagonists as novel colistin adjuvants. Further investigations indicate that ranitidine and famotidine
Jinju Cai, Mengping He, Jianya Luo, Shuang Zhou, Tengyue Zhang, Jianing Li, Zhiqiang Wang, Yuan Liu   +7 more
wiley   +1 more source

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

Angewandte Chemie, EarlyView.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol, Yimo Yang, Chi Chung Lee, Markus W. Ribbe, Yilin Hu   +4 more
wiley   +2 more sources

Novel Vascular‐Adaptive Liquid Metal Microspheres Enable Visualized Arterial Embolization Therapy

Advanced Science, EarlyView.
We present drug‐loaded liquid metal microspheres (X‐MEN) as a novel agent for image‐guided arterial embolization. With inherent radiopacity and superior deformability, X‐MEN enables real‐time monitoring and conforms tightly to irregular vessels. This approach ensures precise, long‐lasting embolization without recanalization, addressing critical ...
Chenyu Shen, Junge Chen, Gang Zhang, Zhusheng Liu, Yichen Wan, Lei Lei, Weiyan Ren, Yanyu Zhao, Bozhang Xia, Zhiqiang Yi, Jinjin Wang, Jingwang Gao, Gen Mu, Xing‐Jie Liang, Zhijun Wang   +14 more
wiley   +1 more source

Plasmid-mediated colistin resistance in Escherichia coli from the Arabian Peninsula

International Journal of Infectious Diseases, 2016
Objectives: Searching for the presence of the mcr-1 gene in colistin resistant Enterobacteriaceae in countries of the Arabian Peninsula. Methods: Seventy-five independent, colistin resistant Enterobacteriaceae strains isolated from clinical cases in ...
Ágnes Sonnevend, Akela Ghazawi, Manaf Alqahtani, Atef Shibl, Wafa Jamal, Rayhan Hashmey, Tibor Pal   +6 more
doaj   +1 more source

Dual‐Physical‐Field Nanocatalysis: Injectable Hydrogel Enables Piezo‐Photothermal Synergy for Breast Cancer Therapy

Advanced Science, EarlyView.
ABSTRACT Piezocatalytic therapy (PCT) harnesses mechanical energy to generate tumor‐lethal reactive oxygen species (ROS), but its efficacy is limited by rapid electron‐hole recombination and poor intratumoral retention. To overcome these limitations, we engineered heterostructured BiOCl@CuO nanosheets embedded in an injectable, conductive ...
Can Tian, Shihan Xiao, Xuan Chen, Danni Zhang, Zizhen Liu, Jing Wang, Ning Xie, Wei Li   +7 more
wiley   +1 more source