Results 51 to 60 of about 6,125 (272)

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Dexime: A Selectively Enzyme‐Degradable Hydrogel for Protein Therapeutic Release

Advanced Materials, EarlyView.
A dextrin‐oxime hydrogel (dexime) is produced using ketone or aldehyde modified dextrin and tetra‐oxyamine modified poly(ethylene glycol). The rheological and mechanical properties of dexime are tunable. Dexime is injectable, cytocompatible, hydrolytically stable, and selectively degradable by α‐amylase.
Quinton E. A. Sirianni, Nitzan Letko Khait, Adam Forman, Edward A. Armstrong, Karim Fouad, Molly S. Shoichet   +5 more
wiley   +1 more source

Soft ticks perform evaporative cooling during blood-feeding [PDF]

Journal of Insect Physiology, 2020
Abstract Feeding on the blood of warm-blooded vertebrates is associated to thermal stress in haematophagous arthropods. It has been demonstrated that blood-sucking insects protect their physiological integrity either by synthesising heat-shock proteins or by means of thermoregulatory mechanisms.
Claudio R. Lazzari, Aurélie Fauquet, Chloé Lahondère, Ricardo N. Araújo, Marcos H. Pereira   +4 more
openaire   +3 more sources

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

Advanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar, Carlos Alejandro Jimenez‐Rodriguez, Railia Biktimirova, Ilka Hermes, Thomas Kurth, My Duyen Pham, Mikhail Tsurkan, Jens Friedrichs, Francis L. C. Morgan, Hans Kleemann, Olga Guskova, Uwe Freudenberg, Peter Fratzl, Carsten Werner, Christoph Tondera, Ivan R. Minev   +15 more
wiley   +1 more source

Gagosa Mountain virus, a novel arbovirus identified in Ornithodoros lahorensis ticks from the Shigatse region of the Tibetan Plateau

Ticks and Tick-Borne Diseases
Ticks are the second most important vectors of human diseases after mosquitoes. Hard ticks are more abundant and widespread than soft ticks, resulting in their greater involvement in diverse diseases.
Yingxin Tu, Can Wang, Wenbing Zhu, Tajie Danba, Shuo Feng, Meixi Ren, Guoyu Niu, Yujing Zhu   +7 more
doaj   +1 more source

Identification of a rickettsial endosymbiont in a soft tick Ornithodoros turicata americanus

PLOS ONE, 2022
Bacterial endosymbionts are abundantly found in both hard and soft ticks. Occidentia massiliensis, a rickettsial endosymbiont, was first identified in the soft tick Ornithodoros sonrai collected from Senegal and later was identified in a hard tick Africaniella transversale.
Lichao Liu, Daniel E. Sonenshine, Hameeda Sultana, Girish Neelakanta   +3 more
openaire   +5 more sources

Double‐Sided Mechanical Interlocking Enables Soft‐Rigid Conductive Interfaces With a Record High Toughness for Flexible Electronics

Advanced Materials, EarlyView.
A double‐sided mechanical interlocking strategy is developed to create robust electrical contact between polymer electrode and metal interconnect. The fibrous structure enables formation of thread–hole adhesion, which only breaks under bulk failure and achieves a record high interfacial energy exceeding 730 J·m−2. This adhesion secures the integrity of
Gang Li, Minkun Cai, Chunyan Cao, Zengbai Ouyang, Hong Fu, Lingyu Zhao, Bingang Xu   +6 more
wiley   +1 more source

The Major Tick Salivary Gland Proteins and Toxins from the Soft Tick, Ornithodoros savignyi, Are Part of the Tick Lipocalin Family: Implications for the Origins of Tick Toxicoses [PDF]

Molecular Biology and Evolution, 2003
The origins of tick toxicoses remain a subject of controversy because no molecular data are yet available to study the evolution of tick-derived toxins. In this study we describe the molecular structure of toxins from the soft tick, Ornithodoros savignyi. The tick salivary gland proteins (TSGPs) are four highly abundant proteins proposed to play a role
Ben J, Mans, Abraham I, Louw, Albert W H, Neitz   +2 more
openaire   +2 more sources

BioEISense: A Microfluidic Platform for Real‐Time Monitoring of Staphylococcus aureus Biofilm Formation and the Efficacy of Antibiofilm Agents

Advanced Materials Interfaces, EarlyView.
BioEISense is a microfluidic device with integrated impedance sensors, for real‐time, label‐free monitoring of S. aureus biofilms. In this study, the biofilm culture conditions were optimized to support sensitive and reproducible detection of biofilm formation and eradication under dynamic flow‐through conditions. The system was also validated for both
Jéssica Amorim, Laura Vesalainen, Loïc Dreano, Markus Haapala, Cristina D. Cruz, Päivi Tammela, Tiina M. Sikanen   +6 more
wiley   +1 more source

DISTRIBUTION OF TICKS AND THEIR ASSOCIATION WITH BORRELIA IN SEMNAN PROVINCE

Iranian Journal of Public Health, 1999
A faunistic study was carried out to estimate the frequency and distribution of different species of ticks and their association with intermittent relapsing fever, in 1995. In this study, during a course of 18 months, 78 villages were examined in 4 towns
H.Nekoui, M. Assmar, A. Amirkhani, N.Pyazak   +3 more
doaj