Results 11 to 20 of about 10,543 (208)

Applications of calixarenes in cancer chemotherapy: facts and perspectives

open access: yesDrug Design, Development and Therapy, 2015
Ali Yousaf,1 Shafida Abd Hamid,1 Noraslinda M Bunnori,1 AA Ishola2 1Kulliyyah of Science, 2Kulliyyah of Medicine, International Islamic University Malaysia, Bandar Indera Mahkota, Malaysia Abstract: Research on the therapeutic applications of ...
Yousaf A   +3 more
doaj   +2 more sources

Recent applications of chiral calixarenes in asymmetric catalysis [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2018
The use of calixarenes in asymmetric catalysis is receiving increasing attention due to their tunable three-dimensional molecular platforms along with their easy syntheses and versatile modification at the upper and lower rims. This review summarizes the
Mustafa Durmaz   +2 more
doaj   +3 more sources

The synthesis and characterization of giant Calixarenes

open access: yesNature Communications, 2019
Calixarenes are cyclic oligomers obtained by condensation reactions between phenols and formaldehyde and usually include up to eight phenolic subunits. Here the authors demonstrate the synthesis of calixarenes with up to 90 phenolic subunits with up to ...
Vincent Guérineau   +10 more
doaj   +2 more sources

Application of Calixarenes as Macrocyclic Ligands for Uranium(VI): A Review [PDF]

open access: yesJournal of Chemistry, 2013
Calixarenes represent a well-known family of macrocyclic molecules with broad range of potential applications in chemical, analytical, and engineering materials fields. This paper covers the use of calixarenes as complexing agents for uranium(VI).
Katarzyna Kiegiel   +2 more
doaj   +2 more sources

Nano chemistry : large molecular capsules and coordination networks based on self-assembly [PDF]

open access: yes, 2004
This thesis focuses on the characterisation of supramolecular structures containing p-sulfonatocalix[ n]arenes (where n=4,5,6,8) with suitable guest molecules and lanthanide metal cations. The characterisation is based primarily on X-ray diffraction but
Dalgarno, Scott John
core   +7 more sources

Bis-amidinium calixarenes: Templates for self-assembled receptors [PDF]

open access: yes, 1998
The synthesis of two bis-amidinium calixarenes 3 and 4 has been achieved. Compounds 3 and 4 self-assemble with carboxylate salts via amidinium-carboxylate salt bridges producing ditopic receptor ...
Philip A. Gale, Gale, Philip A.
core   +1 more source

Self-Assembly of Discrete Porphyrin/Calix[4]tube Complexes Promoted by Potassium Ion Encapsulation

open access: yesMolecules, 2021
The pivotal role played by potassium ions in the noncovalent synthesis of discrete porphyrin-calixarene nanostructures has been examined. The flattened-cone conformation adopted by the two cavities of octa-cationic calix[4]tube C4T was found to prevent ...
Massimiliano Gaeta   +9 more
doaj   +1 more source

A p-tert-Butyldihomooxacalix[4]arene Based Soft Gel for Sustained Drug Release in Water

open access: yesFrontiers in Chemistry, 2020
P-tert-butyldihomooxacalix[4]arene is a well-known calix[4]arene analog in which one CH2 bridge is replaced by one -CH2OCH2- group. Thus, dihomooxacalix[4]arene has a slightly larger cavity than that of calix[4]arene and usually possesses a more flexible
Hao Guo   +6 more
doaj   +1 more source

Study on the Influence of Chirality in the Threading of Calix[6]arene Hosts with Dialkylammonium Axles

open access: yesMolecules, 2020
The influence of chirality in calixarene threading has been studied by exploiting the “superweak anion approach”. In particular, the formation of chiral pseudo[2]rotaxanes bearing a classical stereogenic center in their axle and/or wheel components has ...
Carmen Talotta   +5 more
doaj   +1 more source

A Mechanical sp2‐Jail for C60 Fullerene

open access: yesAngewandte Chemie, EarlyView.
A rigid bisporphyrin receptor with an exceptionally compact 3D cavity functions as a molecular “mechanical jail”, tightly enclosing C60 fullerene. Near‐perfect shape complementarity affords ultrahigh binding affinity while imposing a large kinetic barrier for guest exchange, rendering encapsulation effectively irreversible under ambient conditions ...
A. Priscila Gia   +8 more
wiley   +2 more sources

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