Conjugated 5,5'-Bicalixarene scaffolds having fluorophores at the chain termini have been prepared and tested in the supramolecular detection of nitric oxide. Scaffolds bearing electron-rich fluorophores demonstrated a stronger turn-off response to the presence of NO than the fluorophore-free analogue in both organic and aqueous media, while no fluorescence quenching happened when the electron-deficient fluorophores were employed. Unprecedented ratiometric supramolecular sensing was observed when fluorophores of the opposite electronic demands were placed at the scaffold's termini.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7884005 | PMC |
| http://dx.doi.org/10.1021/acs.orglett.0c03764 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The ISC machinery assembles [2Fe-2S] clusters by formation and fusion of [1Fe-1S] precursors.
Nat Chem Biol
January 2025
Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France.
Iron-sulfur clusters are essential metallocofactors synthesized by multiprotein machineries via an unclear multistep process. Here we report a step-by-step dissection of the [2Fe-2S] cluster assembly process by the Escherichia coli iron-sulfur cluster (ISC) assembly machinery using an in vitro reconstituted system and a combination of biochemical and spectroscopic techniques. We show that this process is initiated by iron binding to the scaffold protein IscU, which triggers persulfide insertion by the cysteine desulfurase IscS upon the formation of a complex with IscU.
View Article and Find Full Text PDFLateral pterygoid muscle enthesis reconstruction in alloplastic total temporomandibular joint replacement: An animal experiment with histological verification.
J Craniomaxillofac Surg
January 2025
Dept. Oro-Maxillo-Facial Surgery, Imeldaziekenhuis, Bonheiden, Belgium.
In current alloplastic total temporomandibular joint replacements (TMJRs) typically the lateral pterygoid muscle (LPM) insertion is sacrificed, affecting joint function. This study assesses a novel additively manufactured TMJR (CADskills BV, Gent, Belgium) designed to enable LPM reinsertion through a scaffold feature on the implant. Thirteen TMJRs were implanted in Swifter crossbreed sheep, with follow-up CT scans after 288 days to evaluate LPM reintegration.
View Article and Find Full Text PDFOptimized Scaffold-Free Human 3D Adipose Tissue Organoid Culture for Obesity and Disease Modeling.
SLAS Discov
January 2025
Bonds Biosystems, 27 Strathmore Rd, Natick, MA, USA. Electronic address:
Obesity and type 2 diabetes (T2D) are strongly linked to abnormal adipocyte metabolism and adipose tissue (AT) dysfunction. However, existing adipose tissue models have limitations, particularly in the stable culture of fat cells that maintain physiologically relevant phenotypes, hindering a deeper understanding of adipocyte biology and the molecular mechanisms behind differentiation. Current model systems fail to fully replicate in vivo metabolism, posing challenges in adipose research.
View Article and Find Full Text PDFAdvances in lacrimal gland organoid development: Techniques and therapeutic applications.
Biomed Pharmacother
January 2025
Department of Stem Cell and Regenerative Biotechnology, School of Advanced Biotechnology, Molecular & Cellular Reprogramming Center, Institute of Advanced Regenerative Science, and Institute of Health, Aging & Society, Konkuk University, 120 Neungdong-ro Gwangjin-gu, Seoul 05029, Republic of Korea; R&D Team, StemExOne Co., Ltd., Seoul, Republic of Korea. Electronic address:
The human lacrimal gland (LG), located above the outer orbital region within the frontal bone socket, is essential in maintaining eye surface health and lubrication. It is firmly anchored to the orbital periosteum by the connective tissue, and it is vital for protecting and lubricating the eye by secreting lacrimal fluid. Disruption in the production, composition, or secretion of lacrimal fluid can lead to dry eye syndrome, a condition characterized by ocular discomfort and potential eye surface damage.
View Article and Find Full Text PDFMechanistic Cooperation of the Two Pore-Forming Transmembrane Motifs Regulates the β-Barrel Pore Formation by Listeriolysin O.
Biochemistry
January 2025
Department of Biological Sciences, Indian Institute of Science Education and Research Mohali, Sector 81, SAS Nagar, Manauli, Mohali, Punjab 140306, India.
Listeriolysin O (LLO) is a potent membrane-damaging pore-forming toxin (PFT) secreted by the bacterial pathogen . LLO belongs to the family of cholesterol-dependent cytolysins (CDCs), which specifically target cholesterol-containing cell membranes to form oligomeric pores and induce membrane damage. CDCs, including LLO, harbor designated pore-forming motifs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!