Chiral recognition coupled with chemometrics using boronate ensembles containing D-π-A cyanostilbenes

2021 ◽  
Author(s):  
Kaede Kawaguchi ◽  
Ayana Moro ◽  
Soya Kojima ◽  
Yuji Kubo

Two types of boronic acid-appended D-π-A cyanostilbenes were synthesized to produce chiral boronate ensembles via dehydration with tartaric acid. The aggregation-induced high sensitivity and positional effect of the CN group...

The Analyst ◽  
2016 ◽  
Vol 141 (4) ◽  
pp. 1257-1265 ◽  
Author(s):  
Guoxin Song ◽  
Fulin Zhou ◽  
Chunli Xu ◽  
Baoxin Li

All of 19 right-handed α-amino acids can induce a red-to-blue color change of l-tartaric acid-capped AuNP solution, whereas all of the left-handed amino acids (except cysteine) cannot.


Polymers ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 1655 ◽  
Author(s):  
Mingyuan Yin ◽  
Caiyun Zhang ◽  
Jing Li ◽  
Haijie Li ◽  
Qiliang Deng ◽  
...  

The method capable of rapid and sensitive detection of benzoyl peroxide (BPO) is necessary and receiving increasing attention. In consideration of the vast signal amplification of fluorescent conjugated polymers (FCPs) for high sensitivity detection and the potential applications of boron-containing materials in the emerging sensing fields, the organoboron FCPs, poly (3-aminophenyl boronic acid) (PABA) is directly synthesized via free-radical polymerization reaction by using the commercially available 3-aminophenyl boronic acid (ABA) as the functional monomer and ammonium persulfate as the initiator. PABA is employed as a fluorescence sensor for sensing of trace BPO based on the formation of charge-transfer complexes between PABA and BPO. The fluorescence emission intensity of PABA demonstrates a negative correlation with the concentration of BPO. And a linear range of 8.26 × 10−9 M–8.26 × 10–4 M and a limit of detection of 1.06 × 10–9 M as well as a good recovery (86.25%–111.38%) of BPO in spiked real samples (wheat flour and antimicrobial agent) are obtained. The proposed sensor provides a promising prospective candidate for the rapid detection and surveillance of BPO.


2013 ◽  
Vol 781-784 ◽  
pp. 346-351
Author(s):  
Hai Tao Wang ◽  
Shi Zhao Kang ◽  
Qiu Ling Yang ◽  
Jin Mu

The effect of tartaric acid on the electrochemical behavior of K3[Fe(CN)6] was investigated on bare ITO electrodes, electrodes coated with multi-walled carbon nanotubes possessing carboxyl groups (MWNT-COOHs), and electrodes coated with cyclodextrin modified multi-walled carbon nanotubes (MWNT-CDs), respectively. It is found that the molecular chirality of tartaric acid can hardly influence the electrochemical behavior of K3[Fe(CN)6] on bare ITO electrodes. When the electrodes coated with MWNT-COOHs are used, the effect of the molecular chirality becomes distinguish. In the case of the electrodes coated with MWNT-CDs, the enhanced chiral discrimination between D-tartaric acid (D-TA) and L-tartaric acid (L-TA) can be observed. The control step in the electrochemical reaction of K3[Fe(CN)6] on the electrodes coated with MWNT-CDs is deduced to be different when D-TA or L-TA is introduced into the solution, respectively. Therefore, the enhanced chiral discrimination on the electrodes coated with MWNT-CDs is probably due to the change of the control step in the electrochemical reaction of K3[Fe(CN)6] caused by the chiral recognition of cyclodextrin moieties to D-TA and L-TA.


1984 ◽  
Vol 25 (3) ◽  
pp. 329-332 ◽  
Author(s):  
Yasuo Dobashi ◽  
Akira Dobashi ◽  
Shoji Hara

The Analyst ◽  
2017 ◽  
Vol 142 (14) ◽  
pp. 2678-2678
Author(s):  
Guoxin Song ◽  
Fulin Zhou ◽  
Chunli Xu ◽  
Baoxin Li

Correction for ‘A universal strategy for visual chiral recognition of α-amino acids with l-tartaric acid-capped gold nanoparticles as colorimetric probes’ by Guoxin Song et al., Analyst, 2016, 141, 1257–1265.


2018 ◽  
Vol 260 ◽  
pp. 976-982 ◽  
Author(s):  
Siyu Qian ◽  
Yang Zhang ◽  
Huizhen Yuan ◽  
Wei Ji ◽  
Yun Liu ◽  
...  

2018 ◽  
Vol 20 (37) ◽  
pp. 24192-24200 ◽  
Author(s):  
Eduardo C. Escudero-Adán ◽  
Antonio Bauzá ◽  
Claude Lecomte ◽  
Antonio Frontera ◽  
Pablo Ballester

We report accurate high-resolution X-ray diffraction analysis of three single crystals: 1,4-dinitrobenzene, a co-crystal of cis-tartaric acid and bis-pyridine N-oxide and pyridine-4-boronic acid hydrochloride and compare the electron density characteristics of the π-hole interactions present in the solids.


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