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Search for "phenylalanine" in Full Text gives 11 result(s) in Beilstein Journal of Nanotechnology.
Design of surface nanostructures for chirality sensing based on quartz crystal microbalance
Beilstein J. Nanotechnol. 2022, 13, 1201–1219, doi:10.3762/bjnano.13.100
- in the pharmaceutical industry. It has been taken as a model molecule to verify the “proof-of-principle” concept for chiral recognition [28]. Kim and co-workers fabricated ʟ-phenylalanine (ʟ-Phe)-modified QCM sensor and used vapor diffusion molecular assembly (VDMA) to study the chiral adsorption of
- ) and 4-vinylpyridine- (4-Vpy) based polymer film with dansyl-ʟ-phenylalanine as the chiral template. The template was finally removed by washing with a solution of 0.01 M HCl. The resultant MIP could specifically recognize dansyl-ʟ-phenylalanine in solution and quantitatively measure ʟ- and ᴅ-forms in
- the enantiomer mixture [47]. Based on the QCM system, they also studied the relationship between the recognition efficiency and the number of chiral cavities in MIP films, which was achieved by varying the concentrations of the chiral template (dansyl-ʟ-phenylalanine) during the MIP formation process
Bioselectivity of silk protein-based materials and their bio-inspired applications
Beilstein J. Nanotechnol. 2022, 13, 902–921, doi:10.3762/bjnano.13.81
- proteins (HDPs) was coined [89]. HDPs are rich in cationic amino acids (e.g., arginine and lysine), and amino acids with hydrophobic side chains (e.g., tryptophan, phenylalanine, tyrosine, leucine, isoleucine, and valine). This composition renders them amphiphilic, which is crucial to their mode of action
Self-assembly of amino acids toward functional biomaterials
Beilstein J. Nanotechnol. 2021, 12, 1140–1150, doi:10.3762/bjnano.12.85
- supramolecular assemblies [32][33]. Twenty natural amino acids are used by cells to synthesize peptides and proteins. A single amino acid can be self-assembled. For example, Adler-Abramovich et al. [34] showed for the first time that phenylalanine, a single aromatic amino acid, can form ordered fibrillar
- interaction between phenylalanine (Phe) rings may play a major role in the self-assembly process. Interestingly, their study also revealed that ᴅ-Phe changes ʟ-Phe fibrous state to flakes, which do not propagate further and do not seed ʟ-Phe, suggesting that ᴅ-Phe may be a potential therapeutic molecule for
- phenylketonuria. Bera et al. [37] studied the effect of chiral on aromatic amino acid self-assembly. They found that the hybrid ᴅʟ system (racemate) alters the morphology and dynamics of the assemblies. For example, either ʟ-phenylalanine or ᴅ-phenylalanine can form amyloid fibers, but the ᴅʟ system shows a
Fabrication of nano/microstructures for SERS substrates using an electrochemical method
Beilstein J. Nanotechnol. 2020, 11, 1568–1576, doi:10.3762/bjnano.11.139
- bridge (521 cm−1), phenylalanine (601 cm−1), tryptophan(s) (760 cm−1), tyrosine doublet (858 cm−1), tryptophan (881 cm−1), CC stretching (934 cm−1), tyrosine (1085 cm−1, 1210 cm−1), tryptophan (1337 cm−1), COO− symmetric stretch(s) (1384 cm−1), and tryptophan (1554 cm−1). Together, these data show that
A 3D-polyphenylalanine network inside porous alumina: Synthesis and characterization of an inorganic–organic composite membrane
Beilstein J. Nanotechnol. 2020, 11, 938–951, doi:10.3762/bjnano.11.78
- Abstract Surface functionalization of porous materials allows for the introduction of additional functionality coupled with high mechanical stability of functionalized inner pores. Herein, we investigate the surface-initiated ring-opening polymerization (SI-ROP) of phenylalanine-N-carboxyanhydride (PA-NCA
- several nanometers to over 100 nanometers were realized on flat surfaces [9][10][11][12][13][14]. Whitesell et al. first described a SI-ROP of alanine-NCA and phenylalanine-NCA on flat surfaces [15]. In the last decades poly(γ-benzyl-ʟ-glutamate) has become the most prominent polypeptide with respect to
- -phenylalanine) were fabricated by a template method reported by Cui et al. [32]. In this study, we functionalize porous alumina substrates to induce the formation of three-dimensional supported organo-gels within their porous architecture to study a new inorganic–organic composite material. Such a surface
Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides
Beilstein J. Nanotechnol. 2019, 10, 684–695, doi:10.3762/bjnano.10.68
- melt compounding process. The Mg2Al-based PBS nanocomposites, dispersed with inorganic–organic hybrid materials (layered double hydroxides, LDHs), were functionalized with the amino acids L-histidine (HIS) and L-phenylalanine (PHE). The rheological and anti-ultraviolet (anti-UV) properties were
- LDH hybrid materials, and in particular, their application as a polymer chain extender and UV stabilizer for PBS, which can likely be extended to other biodegradable polymers. Keywords: amino acid; layered double hydroxide; phenylalanine; polybutylene succinate; Introduction Polymer nanocomposite
- medium wavelength range of the ultraviolet C (UVC) and ultraviolet B (UVB) regions. In the present work, Mg2Al LDH materials were first organo-modified with histidine and phenylalanine using a co-precipitation method and then characterized by X-ray diffraction (XRD), Fourier transform infrared
Low cost tips for tip-enhanced Raman spectroscopy fabricated by two-step electrochemical etching of 125 µm diameter gold wires
Beilstein J. Nanotechnol. 2018, 9, 2718–2729, doi:10.3762/bjnano.9.254
- appearance of some of typical vibrational bands of protein samples such as the phenylalanine (Phe) ring breathing mode at 1004 cm−1 or the amide II band at 1550 cm−1 due to the C–N stretching mode and N–H bending mode of the atoms forming the peptide chain. No signal is detected when the tip is not in
Effective intercalation of zein into Na-montmorillonite: role of the protein components and use of the developed biointerfaces
Beilstein J. Nanotechnol. 2016, 7, 1772–1782, doi:10.3762/bjnano.7.170
- detergents [16][18][19]. The solubility is attributed to the non-polar amino acid residues of the protein, such as valine, leucine, proline, isoleucine, alanine, and phenylalanine, which confer a hydrophobic character to the protein [16]. Therefore, a good knowledge of structural and solubility properties of
Controlling mechanical properties of bio-inspired hydrogels by modulating nano-scale, inter-polymeric junctions
Beilstein J. Nanotechnol. 2014, 5, 887–894, doi:10.3762/bjnano.5.101
- quinones. For mussel adhesives, DOPAquinone is formed by oxidation of a catecholic amino acid, 3,4-dihydroxy-L-phenylalanine (DOPA). Subsequently, DOPAquinone rapidly reacts with basic amino acids, such as lysine and/or histidine, forming covalent adducts of DOPA-DOPA, lysyl-DOPA, and/or histeinyl-DOPA [7
Extracellular biosynthesis of gadolinium oxide (Gd2O3) nanoparticles, their biodistribution and bioconjugation with the chemically modified anticancer drug taxol
Beilstein J. Nanotechnol. 2014, 5, 249–257, doi:10.3762/bjnano.5.27
- absorption edge at ca. 270 nm arises due to electronic transitions in the delocalized π-electrons present in the indole ring of aromatic amino acids such as tryptophan, tyrosine and to some extent phenylalanine residues, which are present in the proteins moiety [24]. These residues of proteins may be
Self-organizing bioinspired oligothiophene–oligopeptide hybrids
Beilstein J. Nanotechnol. 2011, 2, 525–544, doi:10.3762/bjnano.2.57
- (SPPS) by sequential coupling of standard fluorenylmethoxycarbonyl (Fmoc)-protected amino acids and the pseudoproline unit onto a preloaded TentaGel resin [27]. Incorporation of the Fmoc-protected azido-phenylalanine (aPhe) and the addition of the switch ester segment between valine (Val) and threonine
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