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Search for "waste" in Full Text gives 110 result(s) in Beilstein Journal of Nanotechnology.

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

  • Mitzi J. Ramírez-Hernández,
  • Mario Valera-Zaragoza,
  • Omar Viñas-Bravo,
  • Ariana A. Huerta-Heredia,
  • Miguel A. Peña-Rico,
  • Erick A. Juarez-Arellano,
  • David Paniagua-Vega,
  • Eduardo Ramírez-Vargas and
  • Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

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  • of this work is based on three major points. Firstly, by taking advantage of using pineapple waste, green synthesis methods were applied to obtain silver nanoparticles. In this way, an alternative use of agricultural residues was created, providing added value to fruit products. The second point is
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Published 13 Dec 2022

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

  • Aisha Kanwal,
  • Naheed Bibi,
  • Sajjad Hyder,
  • Arif Muhammad,
  • Hao Ren,
  • Jiangtao Liu and
  • Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

Graphical Abstract
  • , a variety of green carbon precursors have been utilized for generating CDs, including fruits, their juices and peels [15][16][17], animal and animal-derived materials, such as milk and hair [18][19][20], and vegetables [21], flowers [22], and leaves [23]. The use of green, sustainable or waste
  • materials for the production of CDs is congruous with the objectives of a sustainable development strategy. Owing to the recycling and re-use of organic waste products, environmental friendliness, and low-cost, green synthesis of CDs is preferred over other conventional methods. There are, in general, two
  • synthesis of carbon dots Green synthesis of CDs mainly utilizes biomass. Biomass synthesis makes use of natural raw materials (organisms, waste material, protein products, or natural polymers), instead of reaction precursors usually used in the traditional methods, and also requires external energy supply
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Published 05 Oct 2022

A comprehensive review on electrospun nanohybrid membranes for wastewater treatment

  • Senuri Kumarage,
  • Imalka Munaweera and
  • Nilwala Kottegoda

Beilstein J. Nanotechnol. 2022, 13, 137–159, doi:10.3762/bjnano.13.10

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  • heavy metals, cations, oils, dyes, and other organic and inorganic chemicals. In recent years, electrospun nanohybrid membranes have been developed and modified for the removal of these pollutants from synthetic/waste water. Heavy metals and other metal cations, such as Cd2+, Pb2+, Cu2+, Ni2+, Hg2+, As3
  • hydrophobic PVDF membrane to a hydrophilic membrane with a water contact angle of 22.72°. The nanohybrid membrane showed a dye removal efficiency of 88.9% and an adsorption capacity of 72.6 mg/g for IC [78]. Huong et al. developed a waste protein-immobilized cationic dye removal membrane from PAN. In this
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Published 31 Jan 2022

Sputtering onto liquids: a critical review

  • Anastasiya Sergievskaya,
  • Adrien Chauvin and
  • Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

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  • solvent contamination [16]. However, the production rate is relatively low, and the cost of production is very high, mainly due to the massive waste produced during the synthesis [22]. A further drawback is the large consumption of energy to maintain the required pressure and temperature conditions used
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Published 04 Jan 2022

Biocompatibility and cytotoxicity in vitro of surface-functionalized drug-loaded spinel ferrite nanoparticles

  • Sadaf Mushtaq,
  • Khuram Shahzad,
  • Tariq Saeed,
  • Anwar Ul-Hamid,
  • Bilal Haider Abbasi,
  • Nafees Ahmad,
  • Waqas Khalid,
  • Muhammad Atif,
  • Zulqurnain Ali and
  • Rashda Abbasi

Beilstein J. Nanotechnol. 2021, 12, 1339–1364, doi:10.3762/bjnano.12.99

Graphical Abstract
  • were incubated with optimized concentrations of EDC and drug (DOX and MTX) for 2 h at room temperature. The drug attachment to the surface of NP was confirmed by UV–vis spectroscopy [30]. The drugs unbound from the samples were removed by 50 KDa centrifugal filters and their concentration in the waste
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Published 02 Dec 2021

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

  • Muhammad Atif Sattar,
  • Najwa Al Bouzieh,
  • Maamar Benkraouda and
  • Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

Graphical Abstract
  • selenide (SnSe); Introduction Thermoelectric (TE) materials convert the direct and reversible heat energy into electrical energy and offer a probable solution and feasible route for power generation alternatives as well as refrigeration through the accumulation of waste heat [1][2][3] or solar energy [4
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Published 05 Oct 2021

An overview of microneedle applications, materials, and fabrication methods

  • Zahra Faraji Rad,
  • Philip D. Prewett and
  • Graham J. Davies

Beilstein J. Nanotechnol. 2021, 12, 1034–1046, doi:10.3762/bjnano.12.77

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  • self-applied, to improve the pharmacokinetic profile of therapeutic component delivery, remove the risk of needle stick injury, and reduce “sharps” and other biohazardous waste. For example, disposable microneedle patches could reduce the transmission of HIV by promoting the growth of self
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Published 13 Sep 2021

The role of deep eutectic solvents and carrageenan in synthesizing biocompatible anisotropic metal nanoparticles

  • Nabojit Das,
  • Akash Kumar and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2021, 12, 924–938, doi:10.3762/bjnano.12.69

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  • (RTILs). DESs fairly resemble the RTILs even though there are important differences regarding ecological footprint and price. One is that DESs are predominantly composed of molecules unlike RTILs, which predominantly contain ions. Also, DESs are fairly cheaper and easier to prepare, do not generate waste
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Published 18 Aug 2021

Silver nanoparticles nucleated in NaOH-treated halloysite: a potential antimicrobial material

  • Yuri B. Matos,
  • Rodrigo S. Romanus,
  • Mattheus Torquato,
  • Edgar H. de Souza,
  • Rodrigo L. Villanova,
  • Marlene Soares and
  • Emilson R. Viana

Beilstein J. Nanotechnol. 2021, 12, 798–807, doi:10.3762/bjnano.12.63

Graphical Abstract
  • of quartz (ICDD 46-1045), a commonly found secondary phase in HNT samples [30]. This result confirms that the substrate is indeed halloysite clay and the absence of any NaOH phase indicates that the treatment waste was successfully washed away. For Ag/HNT-8, diffraction peaks were found at 2θ = 38.12
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Published 05 Aug 2021

Nanogenerator-based self-powered sensors for data collection

  • Yicheng Shao,
  • Maoliang Shen,
  • Yuankai Zhou,
  • Xin Cui,
  • Lijie Li and
  • Yan Zhang

Beilstein J. Nanotechnol. 2021, 12, 680–693, doi:10.3762/bjnano.12.54

Graphical Abstract
  • ][44][45][46], waste milk carton [15], and skin [47][48][49]. Thus, low-cost self-powered sensors can be deployed on a large scale and are a good candidate for data sources for the Internet of things (IoT), big data, and artificial intelligence (AI). NGs can be used as both pressure sensors and as
  • , portable, easy-to-deploy, and low-cost TENGs are novel devices for water quality monitoring. Zhou et al. proposed the use of waste materials to make an arc-shaped TENG (AS-TENG) [15]. The AS-TENG can provide energy for a pH sensor in water. The system can trigger an alarm when the pH value is lower than 5
  • voltages according to the ion concentration, as shown in Figure 5d. The TENGs are a low-cost and environmentally friendly solution for detecting heavy metal ions. The kinetic energy generated by the flow of waste water is converted into electricity through a water-driven triboelectric nanogenerator (WD
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Published 08 Jul 2021

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

Graphical Abstract
  • silkworms to nanoparticles in order to understand the interaction between NPs and silkworms. The effects of nanomaterials on the environment and on human and animal health. (A) Nanomaterial waste; (B) fumes and gases from factories; (C) inflammation of the lungs after inhalation of gases/fumes or when in
  • contact with nanomaterial waste; (D) damage in the membrane and in the lumen of silkworm silk glands; (E) dead zebrafish embryos; (F) NM; (G) contamination of water bodies; (H) silkworm feeding on mulberry leaves containing chemical residues. An illustration of how nanomaterials are directly fed to the
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Published 12 Feb 2021

Paper-based triboelectric nanogenerators and their applications: a review

  • Jing Han,
  • Nuo Xu,
  • Yuchen Liang,
  • Mei Ding,
  • Junyi Zhai,
  • Qijun Sun and
  • Zhong Lin Wang

Beilstein J. Nanotechnol. 2021, 12, 151–171, doi:10.3762/bjnano.12.12

Graphical Abstract
  • ); paper-based sensors; self-powered devices; P-TENGs; triboelectric nanogenerator; Introduction Environmental pollution is an undeniable fact in our daily lives. The air pollution caused by industrial waste generation (gases/toxins) and by the combustion of fossil fuels is getting more and more serious
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Published 01 Feb 2021

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

  • Sina Kaabipour and
  • Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

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Published 25 Jan 2021

Bio-imaging with the helium-ion microscope: A review

  • Matthias Schmidt,
  • James M. Byrne and
  • Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

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Published 04 Jan 2021

Nanocasting synthesis of BiFeO3 nanoparticles with enhanced visible-light photocatalytic activity

  • Thomas Cadenbach,
  • Maria J. Benitez,
  • A. Lucia Morales,
  • Cesar Costa Vera,
  • Luis Lascano,
  • Francisco Quiroz,
  • Alexis Debut and
  • Karla Vizuete

Beilstein J. Nanotechnol. 2020, 11, 1822–1833, doi:10.3762/bjnano.11.164

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  • the production of secondary waste products that require further treatment. Advanced oxidation processes, in general, and heterogeneous semiconductor photocatalysis, in particular, are promising candidates to efficiently treat wastewater as they are cost-effective and green treatment methods in which
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Published 07 Dec 2020

Selective detection of complex gas mixtures using point contacts: concept, method and tools

  • Alexander P. Pospelov,
  • Victor I. Belan,
  • Dmytro O. Harbuz,
  • Volodymyr L. Vakula,
  • Lyudmila V. Kamarchuk,
  • Yuliya V. Volkova and
  • Gennadii V. Kamarchuk

Beilstein J. Nanotechnol. 2020, 11, 1631–1643, doi:10.3762/bjnano.11.146

Graphical Abstract
  • -invasive diagnosis of erosive-ulcerative lesions of the gastrointestinal tract based on the detection in the breath of ill patients of waste products from the bacterium Helicobacter pylori, including cytotoxic strains of this microorganism. However, it should be noted that further improvement of analytical
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Published 28 Oct 2020

A self-powered, flexible ultra-thin Si/ZnO nanowire photodetector as full-spectrum optical sensor and pyroelectric nanogenerator

  • Liang Chen,
  • Jianqi Dong,
  • Miao He and
  • Xingfu Wang

Beilstein J. Nanotechnol. 2020, 11, 1623–1630, doi:10.3762/bjnano.11.145

Graphical Abstract
  • -circuit current output that can be used as a power generator [13][14]. Pyroelectric nanogenerators (PENGs) based on a pyroelectric material have been demonstrated as an effective approach that could avoid the waste of energy by converting temperature fluctuations induced by photoabsorption into electric
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Published 27 Oct 2020

Antimicrobial metal-based nanoparticles: a review on their synthesis, types and antimicrobial action

  • Matías Guerrero Correa,
  • Fernanda B. Martínez,
  • Cristian Patiño Vidal,
  • Camilo Streitt,
  • Juan Escrig and
  • Carol Lopez de Dicastillo

Beilstein J. Nanotechnol. 2020, 11, 1450–1469, doi:10.3762/bjnano.11.129

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  • friendly approach to synthesize nanoparticles has been the use of biological and agricultural waste as reducing agent sources. Researchers have been focusing on this field that leads to one of the most ecologically friendly, sustainable, cost-efficient, and easy methods for synthesizing NPs. Recently, Soto
  • et al. (2019) used fruit peel waste to synthesize silver nanoparticles with antimicrobial activity against foodborne pathogens [93]. Ibrahim et al. (2015) have also synthesized spherical silver nanoparticles (23.7 nm) by using banana peels. These Ag NPs have exhibited antimicrobial activity against
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Published 25 Sep 2020

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

  • Dinesh Rotake,
  • Anand Darji and
  • Nitin Kale

Beilstein J. Nanotechnol. 2020, 11, 1242–1253, doi:10.3762/bjnano.11.108

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  • essential for sustaining life, and an increase in the global population has led to an exponential increase in waste disposal, which causes significantly increased requirements regarding the control of water quality [1]. Clean water is one of the main priorities of the 21st century worldwide, and negligence
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Published 18 Aug 2020

Highly sensitive detection of estradiol by a SERS sensor based on TiO2 covered with gold nanoparticles

  • Andrea Brognara,
  • Ili F. Mohamad Ali Nasri,
  • Beatrice R. Bricchi,
  • Andrea Li Bassi,
  • Caroline Gauchotte-Lindsay,
  • Matteo Ghidelli and
  • Nathalie Lidgi-Guigui

Beilstein J. Nanotechnol. 2020, 11, 1026–1035, doi:10.3762/bjnano.11.87

Graphical Abstract
  • formation, and childbearing in mammals. It is the most potent estrogen [22]. Estrogens found in the environment originate from human and animal excretions and are released into surface waters from agricultural activities, non-treated waste or wastewater treatment effluents [23]. High concentrations of E2
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Published 14 Jul 2020

Effect of magnetic field, heat generation and absorption on nanofluid flow over a nonlinear stretching sheet

  • Santoshi Misra and
  • Govardhan Kamatam

Beilstein J. Nanotechnol. 2020, 11, 976–990, doi:10.3762/bjnano.11.82

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  • nanofluids with nonlinear equations. Applications in nuclear waste storage were initiated by Gaffar et al. [11], who focussed on viscoelastic Jeffrey fluid in a porous medium considering the effect of various dimensionless parameters that influence the heat and mass transfer flow. Dogonchi and Ganji [12
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Published 02 Jul 2020

Adsorptive removal of bulky dye molecules from water with mesoporous polyaniline-derived carbon

  • Hyung Jun An,
  • Jong Min Park,
  • Nazmul Abedin Khan and
  • Sung Hwa Jhung

Beilstein J. Nanotechnol. 2020, 11, 597–605, doi:10.3762/bjnano.11.47

Graphical Abstract
  • annually; and a considerable quantity of the produced dyes is discharged into waste water [1]. Such dyes are usually toxic or are converted into toxic substances after further treatment [1][2], and dyes discarded in waste water inevitably increase the biochemical oxygen demand (BOD) and chemical oxygen
  • demand (COD) levels. Additionally, dyes decrease sunlight penetration through water, decreasing the natural restoration activity of rivers. Moreover, dyes in waste water are also considered problematic in the aesthetic sense, since the absorbance of dyes is usually very high (therefore, even small
  • removal of contaminants of emerging concern, hazardous organics and persistent organic pollutants. Carbonaceous materials have been particularly attractive in the purification of contaminated water via adsorption because of the easy preparation of carbon materials [26], especially from waste materials [28
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Published 08 Apr 2020

Facile biogenic fabrication of hydroxyapatite nanorods using cuttlefish bone and their bactericidal and biocompatibility study

  • Satheeshkumar Balu,
  • Manisha Vidyavathy Sundaradoss,
  • Swetha Andra and
  • Jaison Jeevanandam

Beilstein J. Nanotechnol. 2020, 11, 285–295, doi:10.3762/bjnano.11.21

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  • Department of Chemical Engineering, Curtin University, Miri, Sarawak 98009, Malaysia 10.3762/bjnano.11.21 Abstract Cuttlefish bones are an inexpensive source of calcium carbonate, which are produced in large amounts by the marine food industry, leading to environmental contamination and waste. The
  • waste material every day by the marine food industry across the world, resulting in environmental contamination [10]. In ancient times, cuttlefish bone powder was used as biomedicine in China and India for oral health and is proven to be completely suitable for biomedical applications [11]. Further, the
  • calculated as 79.05 ± 0.453 nm and 219.66 ± 0.38 nm, respectively, derived from the TEM micrographs using ImageJ software, as shown in Figure 4h,i. Kumar et al. (2015) synthesized Hap nanorods with 40–60 nm width and 500 to 700 nm length using waste shells of snail via a microwave irradiation method [38
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Published 04 Feb 2020

Recent progress in perovskite solar cells: the perovskite layer

  • Xianfeng Dai,
  • Ke Xu and
  • Fanan Wei

Beilstein J. Nanotechnol. 2020, 11, 51–60, doi:10.3762/bjnano.11.5

Graphical Abstract
  • , which can lead to an overall reduction of material usage and waste. Mathies et al. [24] report the fabrication and optimization of multipass inkjet-printed PSCs. Here, the thickness and grain size of the perovskite films were controlled during multipass inkjet printing of a MAPbI3-ink yielding PSCs with
  • producing less Pb waste, thus promoting the development of perovskite digital printing technologies. Large-area fabrication of perovskite films Since the PCE of PSCs already exceeds 23%, the research focus is gradually shifting towards important issues related to commercialization. One of the challenges met
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Published 06 Jan 2020

Improvement of the thermoelectric properties of a MoO3 monolayer through oxygen vacancies

  • Wenwen Zheng,
  • Wei Cao,
  • Ziyu Wang,
  • Huixiong Deng,
  • Jing Shi and
  • Rui Xiong

Beilstein J. Nanotechnol. 2019, 10, 2031–2038, doi:10.3762/bjnano.10.199

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  • of utilizing waste heat without generating any greenhouse gas, thermoelectric technology has attracted increasing attention [1]. Nevertheless, the application of thermoelectric materials is limited by the low energy conversion efficiency. The performance of thermoelectric materials is usually
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Published 25 Oct 2019
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