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1. Physics of self-assembly and morpho-topological changes of Klebsiella pneumoniae in desiccating sessile droplets

Author:
Abdur Rasheed; Omkar Hegde; Ritika Chatterjee; Srinivas Rao Sampathirao; Dipshikha Chakravortty; Saptarshi Basu
Source:
Journal of colloid and interface science 2023 v.629 pp. 620-631
ISSN:
0021-9797
Subject:
atomic force microscopy; electron microscopy,   etc   ; Klebsiella pneumoniae; bacterial infections; droplets; pathogenesis; pathogenicity; physics; viability;     Show all 9 Subjects
Abstract:
... The bacteria suspended in pure water self-assemble into unique patterns depending on bacteria-bacteria, bacteria-substrate and bacteria-liquid interactions. The physical forces acting on bacteria vary based on their respective spatial location inside the droplet cause an assorted magnitude of physical stress. The shear and dehydration induced stress on pathogens(bacteria) in drying bio-fluid dropl ...
DOI:
10.1016/j.jcis.2022.09.100

2. Studying on effects of boiling on texture, microstructure and physiochemical properties of sea cucumber body wall and its mechanism using second harmonic generation (SHG) microscopy

Author:
Min Zhang; Yu-Xin Liu; Guan-Hua Zhao; Liang Song; Zi-Xuan Wu; Peng-Fei Jiang; Da-Yong Zhou; Bei-Wei Zhu
Source:
Food chemistry 2023 v.400 pp. 134055
ISSN:
0308-8146
Subject:
light microscopy; transmission electron microscopy,   etc   ; Holothuroidea; collagen; depolymerization; food chemistry; gelatinization; hardness; integument; microstructure; texture;     Show all 11 Subjects
Abstract:
... The structural foundation of texture changes in sea cucumber body wall (SCBW) during boiling was investigated using second harmonic generation (SHG) microscopy for the first time. The results from SHG signal imaging, light microscopy, scanning electron microscopy and transmission electron microscopy indicated the hierarchical structures of collagen in SCBW underwent progressive destruction with th ...
DOI:
10.1016/j.foodchem.2022.134055

3. Towards single cell ICP-MS normalized quantitative experiments using certified selenized yeast

Author:
J.S.F. Pereira; R. Álvarez-Fernández García; M. Corte-Rodríguez; A. Manteca; J. Bettmer; K.L. LeBlanc; Z. Mester; M. Montes-Bayón
Source:
Talanta 2023 v.252 pp. 123786
ISSN:
0039-9140
Subject:
confocal microscopy,   etc   ; flow cytometry; reference standards; selenium; spectroscopy; yeasts;     Show all 6 Subjects
Abstract:
... In the search for a normalized procedure to replicate and compare single cell-inductively coupled plasma-mass spectrometry (SC-ICP-MS) experiments, SELM-1, a certified reference material containing selenium enriched yeast cells has been used. Selenium concentrations (both, intra- and extracellular) have been measured using either sequential or simultaneous procedures. Regarding quantitative result ...
DOI:
10.1016/j.talanta.2022.123786

4. Direct conversion of methane to zeolite-templated carbons, light hydrocarbons, and hydrogen

Author:
Yujie Liu; Elisabet Huertas Osta; Artem S. Poryvaev; Matvey V. Fedin; Alessandro Longo; Alexei Nefedov; Nikolay Kosinov
Source:
Carbon 2023 v.201 pp. 535-541
ISSN:
0008-6223
Subject:
microscopy,   etc   ; carbon; catalysts; chemistry; hydrogen; methane; spectroscopy; topology; value added; zeolites;     Show all 10 Subjects
Abstract:
... Efficient direct valorization of methane to value-added chemicals and materials remains an unsolved challenge for modern chemistry and materials science. In this work, we explored direct non-oxidative conversion of methane to hydrogen, hydrocarbons, and valuable zeolite-templated carbon materials. First, using a set of spectroscopy and microscopy characterization tools, we investigated how the rea ...
DOI:
10.1016/j.carbon.2022.09.050

5. Unravelling the orientation of the inositol-biphosphate ring and its dependence on phosphatidylinositol 4,5-bisphosphate cluster formation in model membranes

Author:
Andreas Santamaria; Javier Carrascosa-Tejedor; Eduardo Guzmán; Nathan R. Zaccai; Armando Maestro
Source:
Journal of colloid and interface science 2023 v.629 pp. 785-795
ISSN:
0021-9797
Subject:
microscopy,   etc   ; endocytosis; inositols; ion channels; phospholipids; plasma membrane; reflectometry; second messengers;     Show all 8 Subjects
Abstract:
... Inositol phospholipids are well known to form clusters in the cytoplasmic leaflet of the plasma membrane that are responsible for the interaction and recruitment of proteins involved in key biological processes like endocytosis, ion channel activation and secondary messenger production. Although their phosphorylated inositol ring headgroup plays an important role in protein binding, its orientatio ...
DOI:
10.1016/j.jcis.2022.09.095

6. Sensor-integrated biocomposite membrane for food quality assessment

Author:
Pawankumar Rai; Suryansh Verma; Srishti Mehrotra; Smriti Priya; Sandeep K. Sharma
Source:
Food chemistry 2023 v.401 pp. 134180
ISSN:
0308-8146
Subject:
atomic force microscopy; electron microscopy,   etc   ; anthocyanins; asymmetric membranes; biocomposites; biodegradability; biopolymers; chitosan; food chemistry; food packaging; food quality; industry; milk; porosity; spoilage; starch; surface roughness; water solubility; water vapor;     Show all 19 Subjects
Abstract:
... The use of biopolymers is gaining momentum owing to their compatibility with various food commodities and acceptability by the industry and consumers. Biopolymers integrated with natural pigments can be used for assessing the quality of perishable packaged food products. Here, a biodegradable composite membrane of starch and chitosan, integrated with anthocyanin has been developed. The chromogenic ...
DOI:
10.1016/j.foodchem.2022.134180

7. Flow characteristics of heavy oil-water flow during high water-content cold transportation

Author:
Yang Lyu; Qiyu Huang
Source:
Energy 2023 v.262 pp. 125441
ISSN:
0360-5442
Subject:
microscopy,   etc   ; asphaltenes; cold; droplets; energy; lubrication; oils; temperature; transportation; viscosity; water content;     Show all 11 Subjects
Abstract:
... As the water content in heavy oil gathering systems increases to 70–90% and large-scale popularization of cold transportation. Understanding the characteristics of heavy oil-water flow during high water-content cold transportation has greatly gained in importance. Here, a comprehensive flow loop experiment and microscopic observation was employed to investigate the flow characteristics of oil-wate ...
DOI:
10.1016/j.energy.2022.125441

8. Methine initiated polypropylene-based disposable face masks aging validated by micromechanical properties loss of atomic force microscopy

Author:
Xueqin Chen; Mude Zhu; Yi Tang; Huiyuan Xie; Xiaoyun Fan
Source:
Journal of hazardous materials 2023 v.441 pp. 129831
ISSN:
0304-3894
Subject:
atomic force microscopy,   etc   ; COVID-19 infection; air; face; humidity; pandemic; pollution; polypropylenes;     Show all 8 Subjects
Abstract:
... The contagious coronavirus disease-2019 pandemic has led to an increasing number of disposable face masks (DFMs) abandoned in the environment, when they are exposed to the air condition, the broken of chemical bond induced aging is inevitably occurred which meantime would cause a drastic decrease of the mechanical flexibility. However, the understanding of between chemical bond change related to a ...
DOI:
10.1016/j.jhazmat.2022.129831

9. Control of Salmonella in mung bean sprouts by antagonistic spore-forming Bacilli

Author:
Madhvi Chahar; Rachel Gollop; Yulia Kroupitski; Moshe Shemesh; Shlomo Sela Saldinger
Source:
Food control 2023 v.143 pp. 109276
ISSN:
0956-7135
Subject:
confocal microscopy,   etc   ; Salmonella enterica; biofilm; biological control; diet; food safety; mung beans; serotypes;     Show all 8 Subjects
Abstract:
... Sprouting seeds are considered part of a healthy and nutritious diet, and accordingly, their consumption increases globally. However, edible sprouts are occasionally linked to outbreaks of foodborne diseases, with Salmonella enterica being a frequent contaminant. Biocontrol was recently proposed as a possible approach to combat sprout contamination during production. The purpose of this study was ...
DOI:
10.1016/j.foodcont.2022.109276

10. Microplastic contamination of soil: Are input pathways by compost overridden by littering?

Author:
Melanie Braun; Matthias Mail; Aylin Ece Krupp; Wulf Amelung
Source:
Science of the total environment 2023 v.855 pp. 158889
ISSN:
0048-9697
Subject:
light microscopy,   etc   ; agricultural soils; composts; environment; microplastics; soil fertility; soil pollution; topsoil; wastes;     Show all 9 Subjects
Abstract:
... Compost application is a widely recommended agricultural practice to improve soil fertility. As almost all compost is likely polluted with plastic we hypothesize that compost application is a major input pathway for microplastics (MPs) into agricultural soil. To attribute the plastic load of soil to compost application, we investigated MPs in topsoil (0–30 cm) of a controlled, long-term fertilizer ...
DOI:
10.1016/j.scitotenv.2022.158889

11. On spot detection of nickel and cobalt from exhausted batteries by a smart electrochemical sensor

Author:
Giulia Selvolini; Giovanna Marrazza
Source:
Talanta 2023 v.253 pp. 123918
ISSN:
0039-9140
Subject:
electron microscopy,   etc   ; bismuth; cobalt; dielectric spectroscopy; electrochemistry; graphene; nickel; sensors (equipment); soil; voltammetry;     Show all 10 Subjects
Abstract:
... This work presents the realization and the application of an user-friendly electrochemical platform based on screen-printed electrodes for the simultaneous determination of nickel and cobalt ions in real samples by means of square wave adsorptive stripping voltammetry (SWAdSV). The sensor was realized by electrodepositing in situ a bismuth film onto graphite screen-printed electrodes (GSPEs). The ...
DOI:
10.1016/j.talanta.2022.123918

12. Dissecting giant hailstones: A glimpse into the troposphere with its diverse bacterial communities and fibrous microplastics

Author:
Marko Kozjek; Damjan Vengust; Tina Radošević; Gregor Žitko; Simon Koren; Nataša Toplak; Ivan Jerman; Matej Butala; Matejka Podlogar; Manca Kovač Viršek
Source:
Science of the total environment 2023 v.856 pp. 158786
ISSN:
0048-9697
Subject:
electron microscopy,   etc   ; Raman spectroscopy; bacterial communities; environment; hail; ice; metagenomics; microplastics; sand; troposphere; Slovenia;     Show all 11 Subjects
Abstract:
... The formation of giant hailstones is a rare weather event that has devastating consequences in inhabited areas. This hazard has been occurring more frequently and with greater size of hailstones in recent years, and thus needs to be better understood. While the generally accepted mechanism is thought to be a process similar to the formation of smaller hailstones but with exceptional duration and s ...
DOI:
10.1016/j.scitotenv.2022.158786

13. Endogenous protein and lipid facilitate the digestion process of starch in cooked quinoa flours

Author:
Shiyi Lu; Jie Li; Jingyun Ji; Yangyang Wen; Hongyan Li; Jing Wang; Baoguo Sun
Source:
Food hydrocolloids 2023 v.134 pp. 108099
ISSN:
0268-005X
Subject:
microscopy,   etc   ; amylopectin; amylose; digestibility; digestible carbohydrates; digestion; gels; hydrocolloids; hydrolysis; lipids; quinoa flour; viscosity;     Show all 12 Subjects
Abstract:
... Quinoa, known for its nutritional quality and as a low GI food, has arose great interests of scientists in the recent past. Intrinsic properties of starch as well as endogenous proteins and lipids might be important factors influencing the digestion processes of cooked quinoas. This work aims to investigate the roles of endogenous proteins and lipids on starch digestibility in quinoa flour, and un ...
DOI:
10.1016/j.foodhyd.2022.108099

14. Rapid electrochemical detection of Mycobacterium tuberculosis in sputum by measuring Ag85 activity with disposable carbon sensors

Author:
Elodie Barbier; Théo Fouchet; Alain Hartmann; Emmanuelle Cambau; Faiza Mougari; Clément Dubois; Maurice Lubetzki; Murielle Rochelet
Source:
Talanta 2023 v.253 pp. 123927
ISSN:
0039-9140
Subject:
microscopy,   etc   ; Mycobacterium tuberculosis; antigens; biomarkers; carbon; decontamination; electrochemistry; enzyme activity; fatty acids; oxidation; tuberculosis; voltammetry;     Show all 12 Subjects
Abstract:
... An electrochemical assay for the detection of the enzymatic activity of the antigen 85 (Ag85) tuberculosis (TB) biomarker was developed and evaluated for the qualitative detection of Mycobacterium tuberculosis in decontaminated sputum. For this purpose, the electroactive properties of both synthetic p-aminophenyl-6-O-octanoyl-3-d-glucopyranoside (p-APOG) substrate and p-aminophenyl-6-3-d-glucopyra ...
DOI:
10.1016/j.talanta.2022.123927

15. Novel supramolecular organo-oil gelators for fast and effective oil trapping: Mechanism and applications

Author:
Yajvinder Saharan; Joginder Singh; Rohit Goyat; Ahmad Umar; Sheikh Akbar; Ahmed A. Ibrahim; Sotirios Baskoutas
Source:
Journal of hazardous materials 2023 v.442 pp. 129977
ISSN:
0304-3894
Subject:
electron microscopy,   etc   ; Fourier transform infrared spectroscopy; adsorption; gasoline; gelation; gels; oils; polluted soils; solvents; sorption isotherms;     Show all 10 Subjects
Abstract:
... In this paper, for the sorption of oil from oil polluted soil/water systems, nine new supramolecular organo-oil gelators were synthesized using three distinct diisocyanates and alcohols. The manufactured gelators were characterized using various techniques. The Fourier transform infrared (FTIR) and mass spectra confirmed the successful formation of the oil gelators. The synthesis of the proposed g ...
DOI:
10.1016/j.jhazmat.2022.129977

16. Effects of konjac glucomannan on physical properties and microstructure of fish myofibrillar protein gel: Phase behaviours involved

Author:
Tao Zhang; Shengjun Chen; Xiaoqi Xu; Xinbo Zhuang; Yinji Chen; Yong Xue; Changhu Xue; Ning Jiang
Source:
Food hydrocolloids 2023 v.134 pp. 108034
ISSN:
0268-005X
Subject:
atomic force microscopy,   etc   ; deformation; fish; fractal dimensions; gels; hydrocolloids; konjac mannan; microstructure; models; rheology; surimi; viscoelasticity;     Show all 12 Subjects
Abstract:
... Hidden phase behaviours in gel systems are essential factors that affect the viscoelasticity and other physical properties of blended gels; however, data on the internal phase behaviour of proteins and polysaccharides in surimi gel systems are lacking. This study establishes a relationship between dynamic rheology and the phase behaviours of protein/polysaccharide-blended systems using myofibrilla ...
DOI:
10.1016/j.foodhyd.2022.108034

17. Sessile drop evaporation approach to detect starch adulteration in milk

Author:
Padma Ishwarya S; Venkateshwar Rao Dugyala; Shantanu Pradhan; Madivala G. Basavaraj
Source:
Food control 2023 v.143 pp. 109272
ISSN:
0956-7135
Subject:
light microscopy,   etc   ; Raman imaging; adulterants; dairy industry; detection limit; evaporation; food safety; lipophilicity; milk; potatoes; starch; tapioca;     Show all 12 Subjects
Abstract:
... Milk adulteration is a major challenge faced by the dairy sector. Starch is a common milk adulterant with negative impact on consumer health. The major shortfalls in the present methods for detection and quantification of starch in milk are the higher limit of detection (LOD) and the need for additional chemical reagents. Hence, developing a chemical-free method with lower LOD for starch in milk i ...
DOI:
10.1016/j.foodcont.2022.109272

18. Simulation of diffusion behavior of NaCl in multi-tissue beef marination process

Author:
Yu Shi; Yueying Wang; Jiyong Shi; Zhihua Li; Xiaowei Huang; Jing Liang; Xinai Zhang; Di Zhang; Xiaobo Zou; Xuetao Hu
Source:
Food chemistry 2023 v.402 pp. 134164
ISSN:
0308-8146
Subject:
electron microscopy,   etc   ; beef; energy-dispersive X-ray analysis; food chemistry; geometry; marinating; mathematical models; model validation; muscles;     Show all 9 Subjects
Abstract:
... To better understand the diffusion behavior of NaCl during beef marinating, energy dispersive spectroscopy combined with scanning electron microscopy were used to acquire NaCl content at successive sampling points in marinated muscle, adipose and connective tissue. The NaCl content at the sampling points was substituted into a mathematical model to calculate accurate diffusion coefficients. Subseq ...
DOI:
10.1016/j.foodchem.2022.134164

19. Tribology and rheology of water-in-water emulsions stabilized by whey protein microgels

Author:
Kwan-Mo You; Brent S. Murray; Anwesha Sarkar
Source:
Food hydrocolloids 2023 v.134 pp. 108009
ISSN:
0268-005X
Subject:
electron microscopy,   etc   ; biopolymers; corn starch; emulsions; friction; gelatinization; hydrocolloids; hydrodynamics; lubrication; microgels; rheology; starch; viscosity; whey protein;     Show all 14 Subjects
Abstract:
... This study aimed to investigate the microstructural, tribological and rheological properties of water-in-water (W/W) emulsion droplets with or without stabilization by proteinaceous microgel particles. The W/W emulsions were prepared from mixtures of gelatinized corn starch (GS) and κ-carrageenan (κC) in the two-phase regime and when particle-stabilized whey protein microgel particles (WPM) were u ...
DOI:
10.1016/j.foodhyd.2022.108009

20. Visualization the fixation of cadmium on manganese dioxide in sulfur reduction environments

Author:
Liuyi Pan; Jiayi Wu; Rui Wang; Yuyao Zhang; Baoliang Chen; Xiaoying Zhu
Source:
Journal of hazardous materials 2023 v.442 pp. 130022
ISSN:
0304-3894
Subject:
atomic force microscopy,   etc   ; cadmium; crystallites; manganese; manganese dioxide; nanoparticles; nanosheets; paddies; paddy soils; pollution; remediation; sulfides; sulfur;     Show all 13 Subjects
Abstract:
... Manganese oxides as common soil components were considered as an important sink for the cadmium pollution, which, however, would be affected by the reductive sulfide introduced during the flooding period of paddy soil. In this study, the phase transitions caused by the reactions among S²⁻, MnO₂ and Cd²⁺ were visualized by atomic force microscopy (AFM). The dissolution of MnO₂ was in-situ studied b ...
DOI:
10.1016/j.jhazmat.2022.130022