Multicomponent System of Single‐Walled Carbon Nanotubes Functionalized with a Melanin‐Inspired Material for Optical Detection and Scavenging of Metals (Adv. Funct. Mater. 49/2022)

Abstract

Single‐Walled Carbon Nanotubes In article number 2209688, Gili Bisker, Ayala Lampel and co‐workers depict a functional, metal‐binding hybrid composed of melanin‐inspired material formed by enzymatic oxidative polymerization of Fmoc‐tyrosine as surface coverage of single‐walled carbon nanotubes (SWCNTs). The SWCNT/melanin‐like composite can scavenge and filter metal‐ions from solutions, where metal binding to the melanin‐like coating is transduced into an optical signal of the SWCNT near‐infrared fluorescence.

Rationally Designed Functionalization of Single‐Walled Carbon Nanotubes for Real‐Time Monitoring of Cholinesterase Activity and Inhibition in Plasma

“…[ 42–59 ] A compelling avenue involves the utilization of single‐walled carbon nanotubes (SWCNTs), which offer several advantageous features such as remarkable photostable fluorescence emission in the NIR range, biocompatibility, and ease of surface functionalization. [ 60–70 ] SWCNTs have been used for fluorometric detection of important analytes, including small molecules, [ 53,71–74 ] oncometalbolites, [ 75 ] proteins, [ 60,61,68,69,76–80 ] neurotransmitters, [ 42,81–83 ] pathogens, [ 84,85 ] metal ions, [ 86 ] endolysosomal pH, [ 87 ] disease biomarkers, [ 88,89 ] plant hormones, [90] sugars, [91] quaternary ammonium compounds, [ 92 ] microRNA [ 93–95 ] cytokines, [ 79 ] volatiles, [ 96,97 ] hormones, [ 90,98 ] and bacterial siderophores, [60] to name a few. In addition, SWCNTs have been utilized as a probe for the inactivation of tyrosinase enzyme by observing a bathochromic shift in their emission wavelength, induced by the generation of singlet oxygen during the enzyme inactivation process.…”

Nanocomposite Hydrogels with Self‐Assembling Peptide‐Functionalized Carbon Nanostructures

“…[17] In particular, addition of self-assembling peptides to CNSs is gaining momentum, thanks to the possibility to attain multiple functionalities, and also new properties and responsive behavior towards smart and hybrid materials. [18] A popular class of minimalistic self-assembling peptides exploits phenylalanine (Phe), [19] and provided effective gelators. [20] In this regard, the heterochiral tripeptide L-Leu-D-Phe-D-Phe was reported to self-assemble into supramolecular hydrogels at physiological conditions, and it was combined with a series of oxidized CNSs to attain nanocomposite hydrogels.…”