Chiral Nanoparticle as a New Efficient Antimicrobial Nanoagent

Qi, Xin; Liu, Qian; Geng, Li; Fang, Qiaojun; Gong, Jian

doi:10.1002/adhm.201601011

Cited by 86 publications

(77 citation statements)

References 50 publications

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“…12 Obviously, the CD signal near 220 nm is generated by the intrinsic chiral chromophore, which inherits the chirality of L-/D-Trp. 12,13 The CD signals near 240 and 290 nm are generated by the inuence of chiral environment, 32 in which the CD signal near 240 nm is derived from the p-p* conjugation of the sp 2 -hybridized carbon network in L-/D-CQDs, 13,33 while the CD signal near 290 nm is attributed to p-p* transition between indole. 34…”

Section: Optical Properties Of L-/d-cqdsmentioning

confidence: 99%

Investigation on the chirality mechanism of chiral carbon quantum dots derived from tryptophan

et al. 2019

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Section: Optical Properties Of L-/d-cqdsmentioning

confidence: 99%

Investigation on the chirality mechanism of chiral carbon quantum dots derived from tryptophan

et al. 2019

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“…CA C‐dots and citrate‐based fluorescent materials have, however, intrinsic advantages, namely low toxicity and good biocompatibility. They have been, therefore, widely applied for developing fluorophores for biomedical applications …”

Section: Introductionmentioning

confidence: 99%

“…They have been, therefore, widely appliedf or developing fluorophores for biomedical applications. [8][9][10][11] One of the simplest routes to synthesise fluorescent C-dots from citric acid is thermal decomposition;d uring the treatment,C Ai sd ehydrated and reducedi nt he 180-200 8Ct emperaturer ange to obtain af luorescent material. The preparation of C-dotsf rom CA is, however,v ery sensitive to the synthesis conditions, such as decomposition temperature, time of thermal treatment [12] and use of solvent.…”

Section: Introductionmentioning

confidence: 99%

Carbon Dots from Citric Acid and its Intermediates Formed by Thermal Decomposition

Ludmerczki

Mura

Carbonaro

et al. 2019

Chemistry A European J

113

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Thermal decomposition of citric acid is one of the most common synthesis methods for fluorescent carbon dots; the reaction pathway is, however, quite complex and the details are still far from being understood. For instance, several intermediates form during the process and they also give rise to fluorescent species. In the present work, the formation of fluorescent C‐dots from citric acid has been studied as a function of reaction time by coupling infrared analysis, X‐ray photoelectron spectroscopy, liquid chromatography/mass spectroscopy (LC/MS) with the change of the optical properties, absorption and emission. The reaction intermediates, which have been identified at different stages, produce two main emissive species, in the green and blue, as also indicated by the decay time analysis. C‐dots formed from the intermediates have also been synthesised by thermal decomposition, which gave an emission maximum around 450 nm. The citric acid C‐dots in water show short temporal stability, but their functionalisation with 3‐aminopropyltriethoxysilane reduces the quenching. The understanding of the citric acid thermal decomposition reaction is expected to improve the control and reproducibility of C‐dots synthesis.

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“…Gong et al., demonstrated that the d ‐glutamic acid modified graphene quantum dots showed highly selective penetration into the bacterial cell membrane over mammalian cells. The modified quantum dots displayed highly selective toxicity against microorganisms and effective antimicrobial activity . Nie's group reported the introduction of cysteine in carbon dots and its influence on cellular energy metabolism .…”

Section: Introductionmentioning

confidence: 99%

Chirality‐Driven Transportation and Oxidation Prevention by Chiral Selenium Nanoparticles

Huang

et al. 2020

Angew Chem Int Ed

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The chirality of nanoparticles directly influences their transport and biological effects under physiological conditions, but the details of this phenomenon have rarely been explored. Herein, chiral GSH‐anchored selenium nanoparticles (G@SeNPs) are fabricated to investigate the effect of their chirality on their transport and antioxidant activity. G@SeNPs modified with different enantiomers show opposite handedness with a tunable circular dichroism signal. Noninvasive positron emission tomography imaging clearly reveals that 64Cu‐labeled l‐G@SeNPs experience distinctly different transport among the major organs from that of their d‐and dl‐counterparts, demonstrating that the chirality of the G@SeNPs influences the biodistribution and kinetics. Taking advantage of the strong homologous cell adhesion and uptake, l‐G@SeNPs have been shown here to effectively prevent oxidation damage caused by palmitic acid in insulinoma cells.

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Chiral Nanoparticle as a New Efficient Antimicrobial Nanoagent

Cited by 86 publications

References 50 publications

Investigation on the chirality mechanism of chiral carbon quantum dots derived from tryptophan

Investigation on the chirality mechanism of chiral carbon quantum dots derived from tryptophan

Carbon Dots from Citric Acid and its Intermediates Formed by Thermal Decomposition

Chirality‐Driven Transportation and Oxidation Prevention by Chiral Selenium Nanoparticles

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