Glycerol photoelectrochemical oxidation reaction at carbon nitrides/BiVO₄ materials

• Charles Garcia da Cunha,
• Isabelle M. D. Gonzaga,
• Cristian Hessel,
• Izadora F. Reis,
• Ivo F. Teixeira,
• Lucia H. Mascaro and
• Elton Sitta

Beilstein J. Nanotechnol. 2026, 17, 806–817, doi:10.3762/bjnano.17.57

• added-value products through biomass oxidation. In this study, we investigate the photoelectrochemical oxidation of glycerol using visible-light-responsive carbon nitride /bismuth vanadate (CN/BiVO4) heterojunction photoelectrocatalysts. Different CN materials were explored, including polymeric carbon

• spectroscopy (SEM-EDS) revealed regions rich in Bi and V, and others rich in C and N, suggesting the formation of heterojunctions. Photoelectrochemical studies demonstrated that BiVO4 is active for both water and glycerol (1.0 mol·L−1) oxidation, with a fourfold increase in photocurrent at 1.23 V vs reversible

• hydrogen electrode (RHE) upon glycerol addition. Clearly, the type of nitride employed in the heterojunctions influences the activity of the material for glycerol oxidation, with the photocurrent at 1.23 V vs RHE following the order: PCN/BiVO4 > BiVO4 ≈ PHI-Cs/BiVO4 > PHI-K/BiVO4 ≈ PHI-Na/BiVO4 > PTI(Li

Tailoring Ag–Pt nanoalloys through solid-state dewetting: structural and optical insights

• Marcin Łapiński,
• Piotr Okoczuk,
• Blaž Grobiša,
• Ewa Pawlikowska,
• Amelia Rozwadowska,
• Wojciech Sadowski and
• Barbara Kościelska

Beilstein J. Nanotechnol. 2026, 17, 748–759, doi:10.3762/bjnano.17.52

• additionally provides protection against oxidation of deposited bilayers. The composition of the nanostructures was adjusted by varying the thickness of the initial metallic films, according to the dependence shown in Figure 10b. This relationship was established based on theoretical stoichiometric

Oxidative atmosphere-driven formation of single-phase spinel CuRh₂O₄ nanofibers for alkaline water oxidation

• Namhee Kim,
• Sumin Ko,
• Sohyeon Choi,
• Seoyoon Jang,
• Myung Hwa Kim and
• Dasol Jin

Beilstein J. Nanotechnol. 2026, 17, 737–743, doi:10.3762/bjnano.17.50

• particularly sensitive to the synthetic environment because Cu readily changes its oxidation state (Cu0/Cu+/Cu2+) depending on the oxidative atmosphere during annealing [9][10]. As a result, slight variations in oxygen partial pressure can significantly alter phase evolution and often lead to undesired

• water oxidation. Experimental Materials Copper(II) chloride hexahydrate (CuCl2·6H2O), rhodium(III) chloride hydrate (RhCl3·xH2O), poly(vinylpyrrolidone) (PVP, Mn ≈ 1,300,000), sodium hydroxide (NaOH), and Nafion solution (5 wt %) were purchased from Sigma-Aldrich (St. Louis, MO, USA). Ethanol was

Environmental applications of silver nanoparticles: state-of-the-art review and emerging trends

• Soni Prajapati,
• Akash Kumar and
• Ranjana Singh

Beilstein J. Nanotechnol. 2026, 17, 697–736, doi:10.3762/bjnano.17.49

• spectroscopy (SERS) using AgNP nanocomposites could selectively detect polystyrene nanoparticles with a detection limit of 14 μg/mL [55]. X-ray photoelectron spectroscopy (XPS) provides information on the elemental composition, surface oxidation states, and electronic configuration of AgNPs [56]. This

• 50 W UV lamp, were used for efficient dye degradation [113]. Fenton-like oxidation of organic dyes using a nanocomposite based on AgNPs was employed to degrade MO, MB, and RhB. The dye-degradation efficiency of the nanocomposite exceeded 99% in both individual and mixed samples after 30 and 240 min

• mechanism includes strong light absorption, a lower bandgap energy, and the generation of UV-induced electron–hole pairs [118]. The role of persulfate-conjugated Ag+ in removing the carboxylic PFAS perfluorooctanoic acid was demonstrated through Fenton oxidation at 20 °C, where fluorine was released along

Decontamination from water pollutants and pathogens by electrospun nanofibers doped with heavy-atom-free borafluorene-BODIPY photosensitizers

• Angelika Zaszczyńska,
• Paulina H. Marek-Urban,
• Karolina Wrochna,
• Agnieszka E. Kuklewska,
• Kacper Kręgielewski,
• Marta Grodzik,
• Dawid R. Natkowski,
• Jolanta Mierzejewska,
• Ewa Iwanek,
• Agata Blacha-Grzechnik,
• Paweł Sajkiewicz and
• Krzysztof Durka

Beilstein J. Nanotechnol. 2026, 17, 668–682, doi:10.3762/bjnano.17.46

• photocatalyst for the degradation of the pharmaceutical agents ranitidine, propranolol, and cimetidine, selected as model water pollutants. The obtained nanofibers showed smooth and uniform morphology along with very high durability and resistance toward oxidation, remaining active even after 20 reaction cycles

• does not proceed for pure PCL material nor in the absence of light, underscoring the key role of the BODIPY complex in the photogeneration of ROS. The degradation of APIs with ROS is non-selective, involving multiple parallel pathways where intermediates may undergo further oxidation. Singlet oxygen is

• coworkers [64], cimetidine undergoes initial S-oxidation to the sulfoxide followed by C–S bond cleavage to yield (5-methyl-1H-imidazol-4-yl)methanol. A similar pathway is expected for ranitidine, which also incorporates a sulfur atom in the structure. Propranolol oxidation with ROS produces 4

Cellulose as a photocatalyst support material: extraction, structural features, and environmental applications

• Yee Teng Lim,
• Nur Farhana Jaafar,
• Azizul Hakim Lahuri and
• Endang Tri Wahyuni

Beilstein J. Nanotechnol. 2026, 17, 635–652, doi:10.3762/bjnano.17.44

• for cellulose extraction were also explored such as acid hydrolysis, enzymatic hydrolysis, oxidation, and mechanical or solvent-based techniques. Besides that, this review highlights the role of cellulose in photocatalytic applications, where its high surface area, structural porosity, and abundance

• water treatment performance as shown in Figure 2 [14]. Photocatalytic degradation is an advanced oxidation process (AOP) in which a catalyst is used to accelerate the degradation or breakdown of organic pollutants in water or air using light energy. This AOP relies on the ability of the catalyst to

• have extracted and isolated CNCs using a variety of methods, including acid hydrolysis [3][24], enzymatic hydrolysis [8][40], TEMPO-mediated oxidation [41][42], ionic liquids [10][20], steam explosion [25], as well as combined approaches that integrate multiple techniques [24][25][41]. Each of these

Recent progress in enhancing built-in electric fields of perovskite solar cells via junction engineering

• Tong Xiao and
• Ke Xu

Beilstein J. Nanotechnol. 2026, 17, 602–621, doi:10.3762/bjnano.17.42

• mainly due to the electronic compensation effect of the vertical Ge2+ gradient on Sn vacancies, which prevents the oxidation of Sn2+ to Sn4+ and minimizes deep-level defects. Additionally, the GE-I framework prevents ion migration and strain accumulation, suppressing failure from Sn vacancy diffusion and

• oxidation-induced energy level collapse, leading to longer-term stability. In graded-junction strategies, evaporation of volatile salts combined with synergistic multi-ion interactions can both establish a potential gradient and passivate defects, thereby further enhancing the BEF. Tao et al. [42

Probing tribological evolution in atomically thin MoS₂ at different scales

• Xingzhong Zeng and
• Miao Zhang

Beilstein J. Nanotechnol. 2026, 17, 586–597, doi:10.3762/bjnano.17.40

• tribology toward the sub-nanoscale. Experimental Sample preparation Single-layer and few-layer MoS2 were obtained from bulk MoS2 by mechanical exfoliation [19]. N-Doped Si covered with dry oxidation-generated 300 nm thick SiO2 was used as the substrate. Prior to exfoliation, substrates were cleaned

Laser–material interactions in liquids for the synthesis of nanomaterials: current status and perspectives

• Carlos Doñate Buendia,
• Bilal Gökce and
• Leonid V. Zhigilei

Beilstein J. Nanotechnol. 2026, 17, 571–575, doi:10.3762/bjnano.17.38

• productivity, as demonstrated, for example, in tuning the oxidation state of Cu nanoparticles generated by LAL [43]. Despite significant progress in understanding LSPC mechanisms, key challenges remain in controlling nanoparticle functionality. Although LSPC is valued for producing high-purity materials

• ]. Alternatively, employing organic solvents instead of water provides opportunities to produce carbon-encapsulated core−shell nanostructures [49] and enables control over oxidation [50], surface chemistry [51], and transferability between solvents [52]. The versatility of LSPC in terms of materials, solvents, and

Synthesis of Cu–Mo/TiO₂ and Co–Mo/TiO₂ photocatalysts for the efficient degradation of organic pollutants in water

• Ilse Acosta,
• Brenda Zermeño,
• Edgar Moctezuma,
• Luis F. Garay-Rodríguez and
• Isaías Juárez-Ramírez

Beilstein J. Nanotechnol. 2026, 17, 559–570, doi:10.3762/bjnano.17.37

• the complete degradation of ketoprofen and 90% of mineralization. It was determined that HO· radicals play an important role in the oxidation reactions. Keywords: co-doping; photocatalysis; titanium dioxide; water remediation; Introduction Water is an essential part of every living entity

• organic contaminants. These products are frequently detected in aquatic bodies due to human use and include pharmaceuticals, pesticides, and industrial chemicals, which significantly degrade drinking water quality [1]. To achieve the efficient removal of emerging pollutants, advanced oxidation processes

• properties were determined. Finally, the photocatalytic behavior of the materials was studied in the photocatalytic oxidation of ketoprofen (KTP) under UV irradiation, with the aim of studying the charge-transfer improvement. Ketoprofen degradation, adsorption, kinetics, and reaction pathways have been

Electrochemical determination of ciprofloxacin using a MIL-101/reduced graphene oxide-modified electrode

• Nguyen Quang Man,
• Nguyen Ngoc Nghia,
• Nguyen Vinh Phu,
• Vo Thi Khanh Ly,
• Le Lam Son,
• Pham Khac Lieu,
• Le Thi Hong Phong,
• Nguyen Dinh Luyen and
• Dinh Quang Khieu

Beilstein J. Nanotechnol. 2026, 17, 541–554, doi:10.3762/bjnano.17.35

• enhanced the electrocatalytic activity toward CPR oxidation. The electrochemical behavior of CPR on the MIL-101/rGO-modified electrode was systematically investigated using cyclic voltammetry and differential pulse voltammetry. Under optimized experimental conditions, the proposed sensor exhibited a linear

• in the trivalent oxidation state. This indicates that the Cr environment in MIL-101 stays intact after integration with rGO. The C 1s spectrum (Figure 3c) can be decomposed into several components representing different carbon bonding environments. The primary peak at about 285.6 eV corresponds to C

• integration of MIL-101(Cr) and rGO, while preserving the Cr3+ oxidation state and the characteristic coordination environment of the MIL-101 framework. The SEM images of rGO, MIL-101, and the MIL-101/rGO composite are shown in Figure 4. The rGO sample (Figure 4a) displays a typical wrinkled, sheet-like

Upcycling agroindustrial waste into graphene oxide supports for gold nanoparticles: toward sustainable nanomaterials

• Juan Marcos Castro-Tapia,
• Selene Acosta,
• Hiram Joazet Ojeda-Galván,
• Elsie Evelyn Araujo-Palomo,
• Edgar Giovanni Villabona-Leal and
• Mildred Quintana

Beilstein J. Nanotechnol. 2026, 17, 489–504, doi:10.3762/bjnano.17.32

• synthesized from peanut shells and spent coffee grounds via a ferrocene-assisted green pyrolysis–oxidation approach. The resulting materials were compared with GO prepared via the Marcano-modified Hummers' method and its hydrazine-reduced counterpart (rGO). Comprehensive characterization was performed using

• -related applications. The results reveal that Agro-GO exhibits tunable oxidation levels, diverse surface functionalities, and morphologies comparable to those of conventional GO; these properties strongly depend on the type of agroindustrial waste precursor used. These findings demonstrate the feasibility

• conventionally synthesized through oxidation of graphite by chemical methods such as the Hummers' method or its modifications, which involve strong acids (e.g., H2SO4 or H3PO4), oxidants (e.g., KMnO4), and occasionally NaNO3 to facilitate exfoliation and oxidation of the graphite layers [6][7][8][9][10]. While

Defects and defect-mediated engineering of two-dimensional materials: challenges and open questions

• Arkady V. Krasheninnikov,
• Matthias Batzill,
• Anouar-Akacha Delenda,
• Marija Drndić,
• Chris Ewels,
• Katharina J. Franke,
• Mahdi Ghorbani-Asl,
• Alexander Holleitner,
• Ado Jorio,
• Ute Kaiser,
• Daria Kieczka,
• Hannu-Pekka Komsa,
• Jani Kotakoski,
• Manuel Längle,
• David Lamprecht,
• Yun Liu,
• Steven G. Louie,
• Janina Maultzsch,
• Thomas Michely,
• Katherine Milton,
• Anna Niggas,
• Hanako Okuno,
• Joshua A. Robinson,
• Marika Schleberger,
• Bruno Schuler,
• Alexander Shluger,
• Kazu Suenaga,
• Kristian S. Thygesen,
• Richard A. Wilhelm,
• E. Harriet Åhlgren and
• Carla Bittencourt

Beilstein J. Nanotechnol. 2026, 17, 454–488, doi:10.3762/bjnano.17.31

• to the interaction with the environment, for example, because of oxidation. The imperfections have a strong influence on the electronic, optical, thermal, and mechanical properties of 2D materials [2][3]. They normally deteriorate the characteristics; but they can also be beneficial, for example, in

• beyond a “trial and error” approach. What are the oxidation mechanisms and kinetics of defective surfaces in 2D materials? Substitutional oxygen defects are present in 2D materials synthesized via chemical vapor deposition (CVD) [51]. This can be a result of oxide precursors, which are frequently used

• . Despite the high reactivity of larger S vacancy clusters, several challenges remain in describing the oxidation kinetics. O2 is bound weakly to TMD surfaces with a binding energy of ≈0.14 eV [55][63][64][65]. Ab initio molecular dynamics (MD) simulations show that O2 is therefore mobile on the pristine

Polycatecholamine nanocoatings on stainless steel: the effect on attachment of human fibroblasts and platelets

• Paulina Trzaskowska,
• Ewa Rybak,
• Maciej Trzaskowski,
• Kamil Kopeć,
• Jakub Krzemiński,
• Rafał Podgórski,
• Hatice Genc,
• Mehtap Civelek and
• Iwona Cicha

Beilstein J. Nanotechnol. 2026, 17, 365–380, doi:10.3762/bjnano.17.25

• layers on stainless steel 316L via a novel in situ oxidation process and evaluated their physicochemical properties and cellular interactions at the nano/microscale. Surface characterization revealed that the polymeric coatings formed a homogenous layer with distinct topographical features and thickness

• : cell–material interactions; Fenton oxidation; hemocompatibility; nanocoatings; polycatechols; Introduction Stainless steel 316L (SS 316L) is an iron-based alloy containing chromium and molybdenum, which promote passivation and corrosion resistance [1]. Owing to its mechanical robustness

• polycatecholamines, as standalone coating systems [12][26]. Their results indicated that polycatecholamines may provide tunable surface properties distinct from those of conventional PDA films. Although PDA and PTYR originate from different amino acid precursors, both polymers are believed to undergo oxidation

Beam shaping techniques for pulsed laser ablation in liquids: Unlocking tunable control of nanoparticle synthesis in liquids

• Sergio Molina-Prados,
• Nadezhda M. Bulgakova,
• Alexander V. Bulgakov,
• Jesus Lancis,
• Gladys Mínguez Vega and
• Carlos Doñate-Buendia

Beilstein J. Nanotechnol. 2026, 17, 309–342, doi:10.3762/bjnano.17.22

Advancing nanolithography: a comprehensive review of materials for local anodic oxidation with AFM

• Matteo Lorenzoni

Beilstein J. Nanotechnol. 2026, 17, 275–291, doi:10.3762/bjnano.17.19

• Matteo Lorenzoni Materials Characterization Facility, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genoa, Italy 10.3762/bjnano.17.19 Abstract Local anodic oxidation (LAO), also known as local oxidation nanolithography or oxidation scanning probe lithography has emerged as a versatile

• heterostructures. Semiconductors such as silicon and silicon carbide remain foundational due to their controllable oxidation kinetics, while metals like titanium and aluminum offer opportunities for plasmonic and optical applications. 2D materials, including graphene, graphene oxide, and transition metal

• dichalcogenides, demonstrate unique oxidation behaviors, enabling high-resolution applications in electronics and quantum devices. Recent advancements, such as electrode-free LAO, have expanded the range of applicable materials and improved the precision and scalability of the process. This paper also aims to

Durable antimicrobial activity of fabrics functionalized with zeolite ion-exchanged nanomaterials against Staphylococcus aureus and Escherichia coli

• Perla Sánchez-López,
• Kendra Ramirez Acosta,
• Sergio Fuentes Moyado,
• Ruben Dario Cadena-Nava and
• Elena Smolentseva

Beilstein J. Nanotechnol. 2026, 17, 262–274, doi:10.3762/bjnano.17.18

• fabrics that were exposed to sunlight (Figure 4Ah and Figure 4Ch). This suggests that the Ag+ ions and small Ag NPs localized on the surface may undergo oxidation due to sunlight exposure. Cu/CBV-600 and Zn/CBV-600 nanomaterials exhibited a weaker antibacterial effect compared to AgCBV-600, particularly

Multilayered hyperbolic Au/TiO₂ nanostructures for enhancing the nonlinear response around the epsilon-near-zero point

• Fernando Arturo Araiza-Sixtos,
• Mauricio Gomez-Robles,
• Rafael Salas-Montiel and
• Raúl Rangel-Rojo

Beilstein J. Nanotechnol. 2026, 17, 251–261, doi:10.3762/bjnano.17.17

• . Considering our previous findings, in this work, we decided to change the fabrication methods and the metal used to avoid possible contamination due to oxidation. We chose to use gold instead of ruthenium because it is easier to deposit and has the correct permittivity to create a HMM. Gold also has a low

• oxidation rate, allowing us to avoid any changes in permittivity due to oxidation during the fabrication process. We kept using titanium dioxide because, during the simulation stage, we found that its permittivity allowed us to keep the overall sample thickness low. Also, during the fabrication process, we

Gold nanoparticle-decorated reduced graphene oxide as a highly effective catalyst for the selective α,β-dehydrogenation of N-alkyl-4-piperidones

• Brenda Flore Kenyim,
• Mihir Tzalis,
• Marilyn Kaul,
• Robert Oestreich,
• Aysenur Limon,
• Chancellin Pecheu Nkepdep and
• Christoph Janiak

Beilstein J. Nanotechnol. 2026, 17, 218–238, doi:10.3762/bjnano.17.15

• Au@SiW9/rGO exhibited the highest catalytic activity for the selective oxidation reaction despite containing the lowest gold loading. These findings highlight the exceptional performance of rGO as a support for AuNP catalysts and provide valuable insights for designing efficient Au-based systems for

• development of highly efficient catalysts is of constant interest for advancements in organic chemistry, particularly in oxidation, hydrogenation, and coupling reactions. Gold nanoparticles (AuNPs) have emerged as exceptionally effective catalysts for facilitating these types of reactions [3][4]. The unique

• emerged as stabilizing ligands for nanoparticles offering distinct structural and electronic advantages. They are widely utilized in various catalytic processes, including oxidation, acid–base, and photocatalysis [8][9] POMs have been extensively employed for stabilizing and decorating small metal

Time of flight secondary ion mass spectrometry imaging of contaminant species in chemical vapour deposited graphene on copper

• Barry Brennan,
• Vlad-Petru Veigang-Radulescu,
• Philipp Braeuninger-Weimer,
• Stephan Hofmann and
• Andrew J. Pollard

Beilstein J. Nanotechnol. 2026, 17, 200–213, doi:10.3762/bjnano.17.13

• growth of the graphene; in particular, the accumulation of contaminations present in the copper foil, which has implications for the potential electrical properties of the graphene. We also observe variations in the permeation of oxygen underneath the graphene layers, resulting in oxidation of the copper

• substrate, depending on processing conditions employed and the chemical species present on the surface. This has implications for the gas permeation barrier properties of this material, graphene transfer mechanisms, as well as the effectiveness of using the oxidation of the copper foil as a rapid graphene

• directly under the graphene after post-growth exposure to atmosphere. This could have implications for better understanding transfer mechanisms that rely on oxidation of the Cu substrate [39][40], defect characterisation [41], or the heat dissipation ability of graphene on Cu [42]. Methods CVD graphene

Structure-dependent thermochromism of PAZO thin films: theory and experiment

• Georgi Mateev,
• Dean Dimov,
• Nataliya Berberova-Buhova,
• Nikoleta Kircheva,
• Todor Dudev,
• Ludmila Nikolova,
• Elena Stoykova,
• Keehoon Hong,
• Dimana Nazarova,
• Silvia Angelova and
• Lian Nedelchev

Beilstein J. Nanotechnol. 2026, 17, 186–199, doi:10.3762/bjnano.17.12

• appearing at ≈975 cm−1, 1590 cm−1, and in the range of 2500–3500 cm−1, are observed. These observations do not provide enough data to determine the exact changes produced in the polymer chain during thermal treatment, but some oxidation processes cannot be completely ruled out. As mentioned in the

Functional surface engineering for cultural heritage protection: the role of superhydrophobic and superoleophobic coatings – a comprehensive review

• Giuseppe Cesare Lama,
• Marino Lavorgna,
• Letizia Verdolotti,
• Federica Recupido,
• Giovanna Giuliana Buonocore and
• Bharat Bhushan

Beilstein J. Nanotechnol. 2026, 17, 63–96, doi:10.3762/bjnano.17.6

• , among which Paraloid B-72 has been one of the most extensively used, and is still widely utilized nowadays, even though it easily experiences several ageing effects, such as yellowing due to photo-oxidation processes [30]. In general, protective coatings applied to cultural heritage artifacts must serve

• degradation, assessing the coatings’ efficiency in UV protection. B72 exhibited significant photodegradation, with an increase in carbonyl index, indicating the formation of oxidation products via chain scission and radical reactions, while AMF showed a decrease in carbonyl index, suggesting crosslinking and

• been published on protective coatings for bronze artworks in outdoor environment. For example, Pellis et al. [77] explored the possibility to modify commercial Paraloid® B44, which degrades over time (its photo-oxidation is often considered an environmental concern), by incorporating nontoxic corrosion

Reduced graphene oxide paper electrode for lithium-ion cells – towards optimized thermal reduction

• Agata Pawłowska,
• Magdalena Baran,
• Stefan Marynowicz,
• Aleksandra Izabela Banasiak,
• Adrian Racki,
• Adrian Chlanda,
• Tymoteusz Ciuk,
• Marta Wolczko and
• Andrzej Budziak

Beilstein J. Nanotechnol. 2026, 17, 24–37, doi:10.3762/bjnano.17.3

• influenced by graphite oxidation [36]. The D'' peak is related to amorphous phases [36]. As described by Ferrari et al. [45], the G peak refers to sp2-bonded atoms present in both the rings and chains (functional groups). The 2D peak can be considered as representing the second order of this mode [36] or the

Quantitative estimation of nanoparticle/substrate adhesion by atomic force microscopy

• Aydan Çiçek,
• Markus Kratzer,
• Christian Teichert and
• Christian Mitterer

Beilstein J. Nanotechnol. 2026, 17, 1–14, doi:10.3762/bjnano.17.1

• oxidation of Cu NPs in ambient air, every sample was kept in a separate vacuum chamber until the AFM measurements. AFM characterization After calibrating the cantilever by either the wedge or the D-LFC method, each sample was immediately measured at the same day. It should be noted that using a sufficiently

Chiral plasmonic nanostructures fabricated with circularly polarized light

• Tian Qiao and
• Ming Lee Tang

Beilstein J. Nanotechnol. 2025, 16, 2245–2264, doi:10.3762/bjnano.16.154

• electron sink, and the hot holes oxidize Pb2+ in solution to form PbO2. The TiO2 substrate is very efficient in removing the unwanted hot electrons to suppress carrier recombination. Ag+ in the reaction mixture eventually consumes these hot electrons. Previous studies have shown that the oxidation of Pb(II

• negative surface electrostatic potential in the vicinity of kink atoms on the surface of Au helicoids led to higher catalytic activity for the oxidation of glucose [22]. Moreover, Au helicoids synthesized with ʟ-glutathione exhibited higher catalytic activity for ʟ-glucose than for ᴅ-glucose. Huang et al