Sulfur nanocomposites with insecticidal effect for the control of Bactericera cockerelli

• Lany S. Araujo-Yépez,
• Juan O. Tigrero-Salas,
• Vicente A. Delgado-Rodríguez,
• Vladimir A. Aguirre-Yela and
• Josué N. Villota-Méndez

Beilstein J. Nanotechnol. 2023, 14, 1106–1115, doi:10.3762/bjnano.14.91

• not only improves the yield; it also reduces the amount of required pesticide and environmental hazards [16]. Sulfur is considered one of the oldest pesticides used in agriculture for the treatment of a wide range of plant diseases [17]. Elemental sulfur in nanoparticulate forms can be generated by

A graphene quantum dots–glassy carbon electrode-based electrochemical sensor for monitoring malathion

• Sanju Tanwar,
• Aditi Sharma and
• Dhirendra Mathur

Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56

• diffraction were used to characterize the morphological and structural properties of GQDs. An electrochemical sensor was developed by drop casting GQDs on a glassy carbon electrode (GCE). The sensor detects the organophosphate pesticide malathion in a selective and sensitive manner. Using cyclic voltammetry

• organophosphates are widely used due to their availability as efficient, low-cost pesticides. It is important to recognize, however, that excessive pesticide use poses a negative impact on the environment and human health because of biomagnification and persistence [3]. One example of an organophosphate

• the possibilities of developing sensing devices based on graphene quantum dots in recent years [20][21][22][23]. In 2015, Dong et al. prepared an oxime-based sensor via attaching pralidoxime on a GQDs-modified GCE for detecting the organophosphorus pesticide fenthion [24]. In 2018, Sahub et al. worked

Metal-organic framework-based nanomaterials as opto-electrochemical sensors for the detection of antibiotics and hormones: A review

• Akeem Adeyemi Oladipo,
• Saba Derakhshan Oskouei and
• Mustafa Gazi

Beilstein J. Nanotechnol. 2023, 14, 631–673, doi:10.3762/bjnano.14.52

Studies of probe tip materials by atomic force microscopy: a review

• Ke Xu and
• Yuzhe Liu

Beilstein J. Nanotechnol. 2022, 13, 1256–1267, doi:10.3762/bjnano.13.104

• nanoclusters to establish a rapid detection method for glyphosate, dimethoate, ethion, methylphosphine and carbaryl. A novel fluorescent "on-off-on" probe was constructed to detect the organophosphorus pesticide glyphosate. Under strongly alkaline conditions (pH is approximately 12), the P–S bonds of ethion

A nonenzymatic reduced graphene oxide-based nanosensor for parathion

• Sarani Sen,
• Anurag Roy,
• Ambarish Sanyal and
• Parukuttyamma Sujatha Devi

Beilstein J. Nanotechnol. 2022, 13, 730–744, doi:10.3762/bjnano.13.65

• after pesticide use. Due to its high nondegradability, pesticides can stay more often on the surface of fruits and vegetables; sometimes, it can also penetrate into the peel of vegetables and fruits [1]. Organophosphorus insecticides react with biomolecules either via deoxyribonucleic acid (DNA

A review on the biological effects of nanomaterials on silkworm (Bombyx mori)

• Sandra Senyo Fometu,
• Guohua Wu,
• Lin Ma and
• Joan Shine Davids

Beilstein J. Nanotechnol. 2021, 12, 190–202, doi:10.3762/bjnano.12.15

• range of 1–100 nm [18][19], is considered a new technological revolution in science. In agriculture, nanotechnology has provided solutions for issues related to plant protection, nutrition, and pesticide resistance [20][21][22]. For example, 250 µg/mL of magnesium dioxide nanoparticles (MgO NPs) has

Fabrication of nano/microstructures for SERS substrates using an electrochemical method

• Jingran Zhang,
• Tianqi Jia,
• Xiaoping Li,
• Junjie Yang,
• Zhengkai Li,
• Guangfeng Shi,
• Xinming Zhang and
• Zuobin Wang

Beilstein J. Nanotechnol. 2020, 11, 1568–1576, doi:10.3762/bjnano.11.139

• /nanopore; nano/microstructures; SERS substrate; Introduction Surface-enhanced Raman spectroscopy (SERS) can be used to detect biomolecules [1][2][3], explosives [4][5][6], and pesticide residues [7][8][9]. Plasmonic metal nanostructures are often used as SERS substrates to increase the molecule-specific

Cu₂O nanoparticles for the degradation of methyl parathion

• Juan Rizo,
• David Díaz,
• Benito Reyes-Trejo and
• M. Josefina Arellano-Jiménez

Beilstein J. Nanotechnol. 2020, 11, 1546–1555, doi:10.3762/bjnano.11.137

• OPPs will be used worldwide [8]. In Mexico, roughly 5,732 metric tons of MP are mainly used annually for the production of beans, cabbage, soy, wheat, lettuce, and tomatoes [5][6], despite the fact that MP is a forbidden pesticide by the United Nations Rotterdam Convention. Due to the large volumes of

• triesters such as fenitrothion or diazinon. Research regarding this matter is in progress. Conclusion Cu2O nanoparticles were used for the first time in the hydrolytic degradation of methyl parathion, the most neurotoxic organophosphate pesticide used to date. The surface basicity of copper(I) oxide in the

Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

• Jingran Zhang,
• Tianqi Jia,
• Yongda Yan,
• Li Wang,
• Peng Miao,
• Yimin Han,
• Xinming Zhang,
• Guangfeng Shi,
• Yanquan Geng,
• Zhankun Weng,
• Daniel Laipple and
• Zuobin Wang

Beilstein J. Nanotechnol. 2019, 10, 2483–2496, doi:10.3762/bjnano.10.239

• include not only complex micro/nanostructures, but also Ag nanoparticles are generated on the Cu(110) surface. This method can be successfully applied to discriminate pesticide residues or viruses at very small quantities. Results and Discussion Morphological characterization for various feeds Scanning

• green is highly toxic for aquatic animals or mammals and can induce cancer in animals. Thus, MG is significantly detected at low concentrations in water. The maximum concentration of malachite green is less than 2 μg/kg (5.48 × 10−9 mol/L) for many national food safety standards. Pesticide residues in

• food are detected by using many methods including gas chromatography, gas chromatography mass spectrometry, and liquid chromatography. These methods suffer from the need of preprocessing and long analysis time. However, SERS technology is a new option to detect pesticide residues in a fast, simple, and

Photoactive nanoarchitectures based on clays incorporating TiO₂ and ZnO nanoparticles

• Eduardo Ruiz-Hitzky,
• Pilar Aranda,
• Marwa Akkari,
• Nithima Khaorapapong and
• Makoto Ogawa

Beilstein J. Nanotechnol. 2019, 10, 1140–1156, doi:10.3762/bjnano.10.114

• photodegradation of pollutants such as the pharmaceutical drugs acetaminophen and antipyrine and the pesticide atrazine [147][159][162]. TiO2–ZnO@clay materials have been also prepared from fibrous clay minerals such as sepiolite, as recently reported by Vaizoğullar [160]. The TiO2–ZnO@sepiolite nanoarchitecture

Biomimetic synthesis of Ag-coated glasswing butterfly arrays as ultra-sensitive SERS substrates for efficient trace detection of pesticides

• Guochao Shi,
• Mingli Wang,
• Yanying Zhu,
• Yuhong Wang,
• Xiaoya Yan,
• Xin Sun,
• Haijun Xu and
• Wanli Ma

Beilstein J. Nanotechnol. 2019, 10, 578–588, doi:10.3762/bjnano.10.59

• , showing its great potential application in biochemical sensing and food security. Keywords: Ag nanofilm; glasswing butterfly; pesticide; surface-enhanced Raman scattering (SERS); Introduction Surface-enhanced Raman scattering (SERS), an extension of conventional Raman spectroscopy, is a powerful

• excellent reproducibility across the entire area with an average RSD value of less than 10.78%. Owing to the excellent sample collection efficiency, the proposed Ag-G.b.-20 substrate is employed to detect and quantify residues of the pesticide acephate, in rapid sampling and on-site chemical and

• the reported methods of pesticide residue detection [38][39][40], SERS is an accurate, rapid and non-destructive spectral analysis technique that can take advantage of “fingerprint” information to characterize the target analytes. Here, we evaluated the practicability of the Ag-G.b.-20 SERS substrate

Fabrication of gold-coated PDMS surfaces with arrayed triangular micro/nanopyramids for use as SERS substrates

• Jingran Zhang,
• Yongda Yan,
• Peng Miao and
• Jianxiong Cai

Beilstein J. Nanotechnol. 2017, 8, 2271–2282, doi:10.3762/bjnano.8.227

• this method were compared to a commercial substrate (Q-SERS). This method was verified to be a high-resolution, highly reproducible, and low cost approach to the fabrication of high-performance SERS substrates that could be used as sensors to detect pesticide residues on the skin of fruit or fish

• solutions, but also irregular surfaces, such as pesticide residues on the skin of fruit or fish. Experimental To perform the Raman measurements, the structured PDMS samples were coated with a Au film and dipped into a R6G aqueous solution with a concentration of 10−6 M for 30 min. They were then rinsed with

Nanoantenna-assisted plasmonic enhancement of IR absorption of vibrational modes of organic molecules

• Alexander G. Milekhin,
• Olga Cherkasova,
• Sergei A. Kuznetsov,
• Ilya A. Milekhin,
• Ekatherina E. Rodyakina,
• Alexander V. Latyshev,
• Sreetama Banerjee,
• Georgeta Salvan and
• Dietrich R. T. Zahn

Beilstein J. Nanotechnol. 2017, 8, 975–981, doi:10.3762/bjnano.8.99

• made in the frequency range of 0.5–2.5 THz for concentrations from 10 to 4168 mg/dL. Similar structures have been used for the determination of pesticide concentration in solution and on the surface of fruit. The detection limit was 8 μmol [22]. Here, we demonstrate the application of SEIRA for the

Twofold role of calcined hydrotalcites in the degradation of methyl parathion pesticide

• Alvaro Sampieri,
• Geolar Fetter,
• María Elena Villafuerte-Castrejon,
• Adriana Tejeda-Cruz and
• Pedro Bosch

Beilstein J. Nanotechnol. 2011, 2, 99–103, doi:10.3762/bjnano.2.11

• parathion (MP) is a very toxic organophosphate pesticide used as a non-systematic insecticide and acaricide on many corps. As MP and its by-products are highly toxic, they have to be retained to avoid pollution of rivers and lakes. Highly efficient sorbents are hydrotalcites (HTs) (or anionic clays). We

• strength, some calcined hydrotalcites can catalyze the transformation of MP to p-nitrophenol (p-NP) and retain its by-products. Such a process has the advantage of being able to be carried out at room temperature and at the pH of the pesticide solution. Keywords: basicity; hydrotalcite; methyl parathion

• degradation; mixed oxide; organophosphate; pesticide; water pollution; Introduction MP, an organophosphate, has been extensively used as pesticide since the 1970’s instead of chlorinated hydrocarbons (e.g., DDT). This pesticide is persistent and very toxic to humans and animals [1], even at low