Self-Assembly and Chemical Modifications of Bisphenol A on Cu(111): Interplay Between Ordering and Thermally Activated Stepwise Deprotonation

ACS Nano ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. 207-215 ◽  
Author(s):  
Sybille Fischer ◽  
Anthoula C. Papageorgiou ◽  
Julian A. Lloyd ◽  
Seung Cheol Oh ◽  
Katharina Diller ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Self Assembly ◽  
Chemical Modifications ◽  
Thermally Activated

scholarly journals Tripeptide Self-Assembly into Bioactive Hydrogels: Effects of Terminus Modification on Biocatalysis

Molecules ◽  
2020 ◽  
Vol 26 (1) ◽  
pp. 173
Author(s):  
Marina Kurbasic ◽  
Ana M. Garcia ◽  
Simone Viada ◽  
Silvia Marchesan
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Chemical Modifications ◽  
Ability To Work ◽  
Active Compounds ◽  
Future Design ◽  
Self Organized ◽  
The Future ◽  
Bio Material ◽  
Supramolecular Catalysts

Bioactive hydrogels based on the self-assembly of tripeptides have attracted great interest in recent years. In particular, the search is active for sequences that are able to mimic enzymes when they are self-organized in a nanostructured hydrogel, so as to provide a smart catalytic (bio)material whose activity can be switched on/off with assembly/disassembly. Within the diverse enzymes that have been targeted for mimicry, hydrolases find wide application in biomaterials, ranging from their use to convert prodrugs into active compounds to their ability to work in reverse and catalyze a plethora of reactions. We recently reported the minimalistic l-His–d-Phe–d-Phe for its ability to self-organize into thermoreversible and biocatalytic hydrogels for esterase mimicry. In this work, we analyze the effects of terminus modifications that mimic the inclusion of the tripeptide in a longer sequence. Therefore, three analogues, i.e., N-acetylated, C-amidated, or both, were synthesized, purified, characterized by several techniques, and probed for self-assembly, hydrogelation, and esterase-like biocatalysis. This work provides useful insights into how chemical modifications at the termini affect self-assembly into biocatalytic hydrogels, and these data may become useful for the future design of supramolecular catalysts for enhanced performance.

Self-assembly of a surface bisphenol A-imprinted core–shell nanoring amino-functionalized superparamagnetic polymer

2013 ◽  
Vol 1 (38) ◽  
pp. 11648 ◽  
Author(s):  
Yong-Gang Zhao ◽  
Xiao-Hong Chen ◽  
Sheng-Dong Pan ◽  
Hao Zhu ◽  
Hao-Yu Shen ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Self Assembly ◽  
Core Shell

Self‐assembly of different graphene‐modified morphologies of TiO 2 : nanoparticle, nanorod and nanowire for bisphenol‐A photodecomposition

2014 ◽  
Vol 9 (6) ◽  
pp. 370-375 ◽  
Author(s):  
Zulin Hua ◽  
Xiaoyuan Zhang ◽  
Xue Bai ◽  
Wenqiang Ma ◽  
Lu Yu ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Self Assembly

RECENT DEVELOPMENTS ON PORPHYRIN ASSEMBLIES

COSMOS ◽  
2008 ◽  
Vol 04 (02) ◽  
pp. 141-171
Author(s):  
RICHARD CHARVET ◽  
JONATHAN P. HILL ◽  
YONGSHU XIE ◽  
YUTAKA WAKAYAMA ◽  
KATSUHIKO ARIGA
Keyword(s):  
Self Assembly ◽  
Molecular Level ◽  
Science And Technology ◽  
Functional Nanomaterials ◽  
Chemical Modifications ◽  
Porphyrin Macrocycle ◽  
Recent Developments ◽  
Porphyrin Moiety

The porphyrin macrocycle is one of the most frequently investigated functional molecular entities and can be incorporated into advanced functional nanomaterials upon formation of organized nanostructures. Thus, study of the science and technology of porphyrin assemblies has attracted many organic, biological and supramolecular chemists. A wide variety of nanostructures can be obtained by supramolecular self-assembly because the porphyrin moiety is amenable to chemical modifications through thoughtful synthetic design and moderate preparative effort. Some recent developments in porphyrin assembly, obtained through various supramolecular approaches, are briefly summarized. Topics described in this review are classified into four categories: (i) non-specific assemblies; (ii) specific assemblies; (iii) assemblies in organized films; (iv) molecular-level arrangement. We present examples in the order of structural precision of assemblies.

scholarly journals Rapid and Sensitive Detection of Bisphenol A Based on Self-Assembly

Micromachines ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 41 ◽  
Author(s):  
Haoyue Luo ◽  
Xiaogang Lin ◽  
Zhijia Peng ◽  
Min Song ◽  
Lifeng Jin
Keyword(s):  
Bisphenol A ◽  
Self Assembly ◽  
Limit Of Detection ◽  
Detection Methods ◽  
Self Assembled Monolayer ◽  
Ac Electrokinetics ◽  
Highly Sensitive ◽  
Reproductive Disorder ◽  
Further Development ◽  
Infants And Young Children

Bisphenol A (BPA) is an endocrine disruptor that may lead to reproductive disorder, heart disease, and diabetes. Infants and young children are likely to be vulnerable to the effects of BPA. At present, the detection methods of BPA are complicated to operate and require expensive instruments. Therefore, it is quite vital to develop a simple, rapid, and highly sensitive method to detect BPA in different samples. In this study, we have designed a rapid and highly sensitive biosensor based on an effective self-assembled monolayer (SAM) and alternating current (AC) electrokinetics capacitive sensing method, which successfully detected BPA at nanomolar levels with only one minute. The developed biosensor demonstrates a detection of BPA ranging from 0.028 μg/mL to 280 μg/mL with a limit of detection (LOD) down to 0.028 μg/mL in the samples. The developed biosensor exhibited great potential as a portable BPA biosensor, and further development of this biosensor may also be useful in the detection of other small biochemical molecules.

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