Exploring the relationships between physiochemical properties of nanoparticles and cell damage to combat cancer growth using simple periodic table-based descriptors

• Joyita Roy and
• Kunal Roy

Beilstein J. Nanotechnol. 2024, 15, 297–309, doi:10.3762/bjnano.15.27

• electronegativity count of metal and oxygen atoms, respectively, and Nmetal and Noxy are, respectively, the number of metal and oxygen atoms. The positive coefficient of the descriptor in Equation 2 indicates that an increase in electronegativity favors the rise in cell damage as in CuO nanoparticles, where a high

A visible-light photodetector based on heterojunctions between CuO nanoparticles and ZnO nanorods

• Doan Nhat Giang,
• Nhat Minh Nguyen,
• Duc Anh Ngo,
• Thanh Trang Tran,
• Le Thai Duy,
• Cong Khanh Tran,
• Thi Thanh Van Tran,
• Phan Phuong Ha La and
• Vinh Quang Dang

Beilstein J. Nanotechnol. 2023, 14, 1018–1027, doi:10.3762/bjnano.14.84

• , have gained much attention from many research teams. This study describes a low-cost photodetector based on CuO nanoparticles and ZnO nanorods operating in a wide range of light wavelengths (395, 464, 532, and 640 nm). Particularly, under 395 nm excitation, the heterostructure device exhibits high

• nanoparticles and ZnO nanorods obtained via a simple and cost-effective synthesis process has great potential for optoelectronic applications. Keywords: CuO nanoparticles; heterojunction; optoelectronics; visible-light photodetector; ZnO nanorods; Introduction Optoelectronics is a field to accelerate the

• photodetector based on CuO nanoparticles (CuO NPs) and ZnO nanorods (ZnO NRs). CuO NPs were loaded onto ZnO NRs by a cost-effective, simple hydrothermal method at low synthesis temperature [38]. The CuO/ZnO photodetector was characterized, and its sensitivity was evaluated regarding visible-light wavelengths

Comparative molecular dynamics simulations of thermal conductivities of aqueous and hydrocarbon nanofluids

• Adil Loya,
• Antash Najib,
• Fahad Aziz,
• Asif Khan,
• Guogang Ren and
• Kun Luo

Beilstein J. Nanotechnol. 2022, 13, 620–628, doi:10.3762/bjnano.13.54

• experimental data. Highly concurrent trends were achieved for the obtained results. According to the obtained results of MDS, adding CuO nanoparticles increased the thermal conductivity of water by 25% (from 0.6 to 0.75 W·m−1·K−1). However, by adding these nanoparticles to hydrocarbon-based fluids (i.e

• increased by inducing CuO nanoparticles. A study was conducted in which it was observed that the CuO/water nanofluid had a positive impact, which resulted in an enhancement of thermal conductivity of about 12.4% as compared to distilled water. The KD2 thermal property analyzer was used for the measurements

• As phase-change materials, alkane-based nanofluids are being used and it is found that as PCM nanofluids of CuO provide enhanced performance. Therefore, CuO nanoparticles in a nonpolar medium can serve as thermal storage materials [36]. Moreover, heat carrier metal/organic nanofluids of methanol and

Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

• Changqiang Yu,
• Min Wen,
• Zhen Tong,
• Shuhua Li,
• Yanhong Yin,
• Xianbin Liu,
• Yesheng Li,
• Tongxiang Liang,
• Ziping Wu and
• Dionysios D. Dionysiou

Beilstein J. Nanotechnol. 2020, 11, 407–416, doi:10.3762/bjnano.11.31

• was composed of highly stacked smooth 2D nanoflakes with a thickness of ≈50 nm (Figure 3b and 3e). With the addition of tourmaline, plenty of 0D CuO nanoparticles (≈20 nm) were generated on the surface of 2D CuO nanoflakes (Figure 3c and 3f). The 0D CuO nanoparticles roughened the surface of the 2D

An efficient electrode material for high performance solid-state hybrid supercapacitors based on a Cu/CuO/porous carbon nanofiber/TiO₂ hybrid composite

• Mamta Sham Lal,
• Thirugnanam Lavanya and
• Sundara Ramaprabhu

Beilstein J. Nanotechnol. 2019, 10, 781–793, doi:10.3762/bjnano.10.78

• on the surface were transform to CuO nanoparticles during hydrothermal synthesis, but in bulk of fiber, retained the phase of Cu. Raman spectroscopy was used to estimate a crystalline phase and the degree of graphitization of the subsequent synthesized samples (Figure 4a). CNF exhibited two

Improved catalytic combustion of methane using CuO nanobelts with predominantly (001) surfaces

• Qingquan Kong,
• Yichun Yin,
• Bing Xue,
• Yonggang Jin,
• Wei Feng,
• Zhi-Gang Chen,
• Shi Su and
• Chenghua Sun

Beilstein J. Nanotechnol. 2018, 9, 2526–2532, doi:10.3762/bjnano.9.235

• the performance tests, the crystal structure of the collected samples was further examined by X-ray diffraction with commercial CuO nanoparticles (NPs, Aldrich 450812) as a reference for comparison. The NP, NW and NB samples show the similar profiles, confirming that they have the same phase (CuO

Selective photocatalytic reduction of CO₂ to methanol in CuO-loaded NaTaO₃ nanocubes in isopropanol

• Tianyu Xiang,
• Feng Xin,
• Jingshuai Chen,
• Yuwen Wang,
• Xiaohong Yin and
• Xiao Shao

Beilstein J. Nanotechnol. 2016, 7, 776–783, doi:10.3762/bjnano.7.69

• particles were dispersed on the surface of the NaTaO3 nanocubes with an average size of tens of nanometers (Figure 5b and Figure 5c). When the loading reached 5 wt %, the CuO nanoparticles began to aggregate and large clusters were formed (Figure 5d). The UV–vis diffuse reflectance spectra of CuO–NaTaO3 are

• of irradiation. CuO nanoparticles loaded on the surface of 2M-NaTaO3 functioned as reductive sites on which CO2 was reduced to methanol. Below the optimal amount of CuO (2 wt %), the activity was promoted with the increase of CuO loading. When the loading was greater than 2 wt %, the activity began

• amount was another important factor. Below the optimal amount of CuO (2 wt %), the activity increased with the increase of CuO loading. For CuO loading greater than 2 wt %, the activity decreased with increasing CuO loading. An explanation for this is that the CuO nanoparticles provide more reductive

Antimicrobial properties of CuO nanorods and multi-armed nanoparticles against B. anthracis vegetative cells and endospores

• Pratibha Pandey,
• Merwyn S. Packiyaraj,
• Himangini Nigam,
• Gauri S. Agarwal,
• Beer Singh and
• Manoj K. Patra

Beilstein J. Nanotechnol. 2014, 5, 789–800, doi:10.3762/bjnano.5.91

• Devices Division Defence R&D Establishment, New Campus, Jhansi Road, Gwalior, India Defence Laboratory, Jodhpur, India 10.3762/bjnano.5.91 Abstract Two different kinds of CuO nanoparticles (NPs) namely CuO nanorods (PS2) and multi-armed nanoparticles (P5) were synthesized by wet and electrochemical

• nanostructures comparable to established antibiotics as well as their photocatalytic potential. However, we have not come across any report on bactericidal potential of CuO nanoparticles against B. anthracis cells and spores. The earlier findings inspired us to evaluate antibacterial activity of noncorrosive CuO

• against gram-positive B. anthracis vegetative cells almost comparable to that against nonsporigenic gram-negative E. coli bacteria. The CuO nanoparticles demonstrated a significantly higher bactericidal activity in comparison to bulk CuO microparticles. The spores however showed more resistance towards