Results 71 to 80 of about 132,389 (268)

Geometrical Designs in Volumetric Bioprinting to Study Cellular Behaviors in Engineered Constructs

Advanced Healthcare Materials, EarlyView.
Curvature and spatial confinement guide cell behavior in volumetrically printed 3D constructs. Endothelial cells align and spread along specific geometries, while metastatic osteosarcoma cells proliferate independently of structural cues. Label‐free holographic microscopy captures real‐time, long‐term cell–material interactions, highlighting Gel‐PEG's ...
Julia Simińska‐Stanny, Pierre Tournier, Armin Shavandi, Shukry J Habib   +3 more
wiley   +1 more source

Tandem Cu-catalyzed ketenimine formation and intramolecular nucleophile capture: Synthesis of 1,2-dihydro-2-iminoquinolines from 1-(o-acetamidophenyl)propargyl alcohols

Beilstein Journal of Organic Chemistry, 2014
The copper-catalyzed ketenimine formation reaction of 1-(o-acetamidophenyl)propargyl alcohols with various sulfonyl azides is found to undergo a concomitant intramolecular nucleophile attack to generate 1,2-dihydro-2-iminoquinolines after aromatization ...
Gadi Ranjith Kumar, Yalla Kiran Kumar, Ruchir Kant, Maddi Sridhar Reddy   +3 more
doaj   +1 more source

IL‐2 Free Expansion of T Cells with Immunofilaments

Advanced Healthcare Materials, EarlyView.
Ratio and density of stimulatory αCD3 and αCD28 mAb on immunofilaments (IF) influence T cell expansion, cytokine production, and effector phenotype. Moreover, IL‐2 supplementation is not necessary with optimal performing IFs, which leads to simpler culture conditions, and negative side effects of IL‐2 supplementation are reduced.
Marjolein Schluck, Lea Weiss, René Classens, Carl G. Figdor, Roel Hammink   +4 more
wiley   +1 more source

Human Brain Vasculature‐on‐a‐Chip Model Constructed With Microvessels Isolated From Cryopreserved Postmortem Human Brain Tissue

Advanced Healthcare Materials, EarlyView.
This manuscript describes the cultivation of viable microvessels from cryopreserved human brain tissue. When embedded in hydrogels and cultured in microfluidic devices, these microvessels exhibit complex architectures reminiscent of arterioles and capillaries, can be perfused, and display intact barrier function. Collectively, these results demonstrate
Brian J. O'Grady, A. Scott McCall, Samuel Cullison, Daniel Chavarria, Matthew S. Schrag, Ethan S. Lippmann   +5 more
wiley   +1 more source

Copper-Catalyzed Synthesis of 4-CF₃-1,2,3-Triazoles: An Efficient and Facile Approach via Click Reaction

Molecules
Incorporation of a trifluoromethyl group with 1,2,3-triazoles motifs was described. We explored a click reaction approach for regioselective synthesis of 1-susbstituted-4-trifluoromethyl-1,2,3-triazoles in which 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU ...
Tinghong Tang, Cuiting Chen, Xin Fu, Huilan Xu, Luyong Wu, Wenhao Chen   +5 more
doaj   +1 more source

Separation of the 5- and 6-Carboxy Regioisomers of ROX and JOE Dyes with Examples of N-(3-Azidopropyl)amide Synthesis

SynOpen, 2018
Despite the widespread applications of various rhodamine and fluorescein 5- and 6-carboxy derivatives, the preparation of their pure regioisomers, in particular cases, remains a complex task.
Nadezhda S. Baleeva, Marina B. Zagudaylova, Mikhail S. Baranov   +2 more
doaj   +1 more source

Copper-on-Magnetically Activated Carbon-Catalyzed Azide-Alkyne Click Cycloaddition in Water [PDF]

, 2022
Noura Aflak, El Mountassir El Mouchtari, Hicham Ben El Ayouchia, Hafid Anane, Salah Rafqah, Miguel Julve, Salah‐Eddine Stiriba   +6 more
openalex   +1 more source

Delivery of Multifunctional Microspheres via Intravesical Instillation for Bladder Carcinoma: Therapeutic Potential and Mechanistic Insights

Advanced Healthcare Materials, EarlyView.
PCTM microspheres were successfully synthesized using microfluidic and click chemistry techniques.In Vivo and in vitro experiments have shown that PCTM microspheres have obvious targeting, adhesion, membrane penetration and anti‐tumor properties for bladder tumors.The antitumor mechanism of PCTM microspheres is to indirectly induce S‐stage blockage of ...
Zhaoxiang Lu, Wentie Yang, Youzhi Hong, Yusen Qiao, Chaozhao Liang   +4 more
wiley   +1 more source

Brønsted acid-promoted azide–olefin [3 + 2] cycloadditions for the preparation of contiguous aminopolyols: The importance of disiloxane ring size to a diastereoselective, bidirectional approach to zwittermicin A

Beilstein Journal of Organic Chemistry, 2010
We report the first study of substrate-controlled diastereoselection in a double [3 + 2] dipolar cycloaddition of benzyl azide with α,β-unsaturated imides.
Hubert Muchalski, Ki Bum Hong, Jeffrey N. Johnston   +2 more
doaj   +1 more source

Highly Tunable and Cell‐Remodelable Thiol‐ene Alginate‐Peptide Crosslinked Hydrogels to Recreate Cellular and Organoid Microenvironments for Biofabrication

Advanced Healthcare Materials, EarlyView.
Norbornene‐functionalized alginate is crosslinked with a di‐thiolated peptide sequence cleavable by cell‐secreted matrix metalloproteinases and decorated with cell‐adhesion peptides upon exposure to UV. Thyroid follicles, endometrial and intestinal organoids are encapsulated in a gentle manner with high cell viability and correct phenotype ...
Julia Fernández‐Pérez, Adrián Seijas‐Gamardo, Antonio J. Feliciano, Panagiota Kakni, Anna M. Kip, Paul Wieringa, Stefan Giselbrecht, Matthew B. Baker, Lorenzo Moroni   +8 more
wiley   +1 more source