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1. Recent advances in inorganic functional nanomaterials based flexible electrochemical sensors

Author:
Fan Yuan; Youyuan Xia; Qin Lu; Qin Xu; Yun Shu; Xiaoya Hu
Source:
Talanta 2022 v.244 pp. 123419
ISSN:
0039-9140
Subject:
sensors (equipment),   etc   ; electrochemistry; humans;     Show all 3 Subjects
Abstract:
... The flexible electrochemical sensor is a key component of the health monitoring system which can continuously track the physiological signals of the human body, while there is no obvious discomfort and invasiveness. Therefore, it has great potential in personalized medical testing. However, the development of flexible electrochemical sensors currently faces many difficulties, such as the limitatio ...
DOI:
10.1016/j.talanta.2022.123419

2. Versatile Detection and Monitoring of Ionizing Radiation Treatment Using Radiation-Responsive Gel Nanosensors

Author:
Karthik Pushpavanam; Subhadeep Dutta; Sahil Inamdar; Tomasz Bista; Thaddeus Sokolowski; Alek Rapchak; Amir Sadeghi; Stephen Sapareto; Kaushal Rege
Source:
ACS applied materials & interfaces 2022 v.14 no.13 pp. 14997-15007
ISSN:
1944-8252
Subject:
sensors (equipment),   etc   ; brachytherapy; gels; gold; nanogold;     Show all 5 Subjects
Abstract:
... Modern radiation therapy workflow involves complex processes intended to maximize the radiation dose delivered to tumors while simultaneously minimizing excess radiation to normal tissues. Safe and accurate delivery of radiation doses is critical to the successful execution of these treatment plans and effective treatment outcomes. Given extensive differences in existing dosimeters, the choice of ...
DOI:
10.1021/acsami.2c01019

3. Carbon-Based Nanomaterials for Sustainable Agriculture: Their Application as Light Converters, Nanosensors, and Delivery Tools

Author:
Lan Zhu; Lingling Chen; Jiangjiang Gu; Huixin Ma; Honghong Wu
Source:
Plants 2022 v.11 no.4 pp. -
ISSN:
2223-7747
Subject:
sensors (equipment),   etc   ; nanomaterials; planting; sustainable agriculture;     Show all 4 Subjects
Abstract:
... Nano-enabled agriculture is now receiving increasing attentions. Among the used nanomaterials, carbon-based nanomaterials are good candidates for sustainable agriculture. Previous review papers about the role of carbon-based nanomaterials in agriculture are either focused on one type of carbon-based nanomaterial or lack systematic discussion of the potential wide applications in agriculture. In th ...
DOI:
10.3390/plants11040511

4. Recent progress in homogeneous electrochemical sensors and their designs and applications

Author:
Haiyin Li; Hongjie Qi; Jiafu Chang; Panpan Gai; Feng Li
Source:
Trends in analytical chemistry 2022 v.156 pp. 116712
ISSN:
0165-9936
Subject:
sensors (equipment),   etc   ; analytical chemistry; chemical species; electrochemistry;     Show all 4 Subjects
Abstract:
... Electrochemical sensor has been regarded as a promising tool for highly sensitive and selective detection of analytes due to rapid response, easy operation and miniaturization. Nevertheless, traditional sensors require the immobilization of electroactive dyes and recognizable elements, which are laborious, take time and distort the activity of bio-recognizable elements. Homogeneous strategy is a p ...
DOI:
10.1016/j.trac.2022.116712

5. Engineering a dual-responsive, exosome-surface anchored DNA nanosensor for microenvironment monitoring in vivo

Author:
Dingwen Yu; Jinfeng Yang; Lijuan Wang; Mingjian Chen; Ronghua Yang; Jing Zheng
Source:
Chemical communications 2022 v.58 no.22 pp. 3661-3664
ISSN:
1364-548X
Subject:
sensors (equipment),   etc   ; DNA; DNA probes; biocompatibility; exosomes; pH;     Show all 6 Subjects
Abstract:
... We propose an azoreductase and pH dual-responsive amphiphilic pyramidal tetrahedral DNA probe to construct a circulating exosome-surface anchored nanosensor for microenvironment monitoring in vivo. Based on the shuttle behavior, biocompatibility of the exosomes, and easy synthesis and modification of nucleic acids, both in vitro and in vivo results demonstrate that this nanosensor has excellent pe ...
DOI:
10.1039/d1cc07070c

6. Ratiometric intracellular pH sensors based on nitrogen-doped graphene oxide quantum dots

Author:
Xiang Zhang; Yu Gu; Yun Zhang; Guo-Yin Yu; Zhi-Peng Liao; Hui-Fang Wu; Chuan-Guo Shi
Source:
Heliyon 2022 v.8 no.5 pp. e09411
ISSN:
2405-8440
Subject:
sensors (equipment),   etc   ; biocompatibility; color; fluorescence; graphene oxide; pH;     Show all 6 Subjects
Abstract:
... Intracellular pH (pHi) is very essential for the function of cells and organisms. Thus, it is of great scientific and technical significance to develop nanosensors for probing pHi. In this work, nitrogen-doped graphene oxide quantum dots (N-GOQDs) with fluorescent efficiency of 54% are prepared. The fluorescent spectrum excited at 340 nm contains two remarkable bands at 430 and 520 nm. Interesting ...
DOI:
10.1016/j.heliyon.2022.e09411

7. Rapid electrochemical sensor for uranium(vi) assessment in aqueous media

Author:
Zeinab F. Akl
Source:
RSC advances 2022 v.12 no.31 pp. 20147-20155
ISSN:
2046-2069
Subject:
sensors (equipment),   etc   ; detection limit; pH; schiff bases; uranium;     Show all 5 Subjects
Abstract:
... The significance of reliable monitoring of uranium levels in water recourses calls for the development of time-saving, robust, and accurate methods for its estimation. In this view, the current study describes the design and analytical parameters of a potentiometric membrane sensor for uranium(vi) ions. The sensor is based on a new Schiff base derivative, as an ionophore, that was synthesized and ...
DOI:
10.1039/d2ra02619h

8. Computational investigation of a covalent triazine framework (CTF-0) as an efficient electrochemical sensor

Author:
Sehrish Sarfaraz; Muhammad Yar; Muhammad Ans; Mazhar Amjad Gilani; Ralf Ludwig; Muhammad Ali Hashmi; Masroor Hussain; Shabbir Muhammad; Khurshid Ayub
Source:
RSC advances 2022 v.12 no.7 pp. 3909-3923
ISSN:
2046-2069
Subject:
sensors (equipment),   etc   ; adsorption; carbon dioxide; chemical species; energy; triazines;     Show all 6 Subjects
Abstract:
... In the current study, a covalent triazine framework (CTF-0) was evaluated as an electrochemical sensor against industrial pollutants i.e., O₃, NO, SO₂, SO₃, and CO₂. The deep understanding of analytes@CTF-0 complexation was acquired by interaction energy, NCI, QTAIM, SAPT0, EDD, NBO and FMO analyses. The outcome of interaction energy analyses clearly indicates that all the analytes are physiosorbe ...
DOI:
10.1039/d1ra08738j

9. Fabrication and application of electrochemical sensor for analyzing hydrogen peroxide in food system and biological samples

Author:
Lujuan Xing; Wangang Zhang; Lijuan Fu; José Manuel Lorenzo; Yuejing Hao
Source:
Food chemistry 2022 v.385 pp. 132555
ISSN:
0308-8146
Subject:
sensors (equipment),   etc   ; detection limit; electrochemistry; food chemistry; hydrogen peroxide;     Show all 5 Subjects
Abstract:
... Hydrogen peroxide is an active mediator in biological processes and thus the detection of hydrogen peroxide is necessary for the foods, medicals, pharmaceutical, and chemical industries. Compared with the traditional methods, the electrochemical sensor is investigated as a sensitive, efficient, and time-saving method for the detection of hydrogen peroxide. In order to update the latest research, t ...
DOI:
10.1016/j.foodchem.2022.132555

10. Recent advances in nanomaterials for prostate cancer detection and diagnosis

Author:
Yongwei Hu; Shixian Lv; Jiaming Wan; Chunxiong Zheng; Dan Shao; Haixia Wang; Yu Tao; Mingqiang Li; Yun Luo
Source:
Journal of materials chemistry B 2022 v.10 no.26 pp. 4907-4934
ISSN:
2050-7518
Subject:
sensors (equipment),   etc   ; bioassays; biomarkers; chemistry; prostatic neoplasms; surface area;     Show all 6 Subjects
Abstract:
... Despite the significant progress in the discovery of biomarkers and the exploitation of technologies for prostate cancer (PCa) detection and diagnosis, the initial screening of these PCa-related biomarkers using current technologies is always demanded with a bioassay or probe with high sensitivity, specificity, and noninvasiveness. Nanomaterials have emerged as novel alternative probes for PCa det ...
DOI:
10.1039/d2tb00448h

11. Trypsin stabilized copper nanoclusters as a highly sensitive and selective probe for fluorescence sensing of morin and temperature

Author:
Xian-song Wang; Shen Zhang
Source:
Colloids and surfaces 2022 v.649 pp. 129458
ISSN:
0927-7757
Subject:
sensors (equipment),   etc   ; detection limit; fluorescence; hydrazine; temperature; trypsin; wavelengths;     Show all 7 Subjects
Abstract:
... Herein, a platform for sensitive fluorescence sensing of morin was developed based on the copper nanoclusters, which was carried out by using a one-pot method. The copper nanoclusters (Trypsin@Cu NCs) were fabricated through CuCl₂ as a metal precursor, trypsin as a protective agent and hydrazine hydrate as a reducing agent. The Trypsin@Cu NCs exhibited blue fluorescence under the excitation wavele ...
DOI:
10.1016/j.colsurfa.2022.129458

12. Electrochemical preparation of monodisperse Pt nanoparticles on a grafted 4-aminothiophenol supporting layer for improving the MOR reaction

Author:
Nguyen Tien Hoang; Pham Truong Thuan Nguyen; Pham Do Chung; Vu Thi Thu Ha; Tran Quang Hung; Pham Thi Nam; Vu Thi Thu
Source:
RSC advances 2022 v.12 no.13 pp. 8137-8144
ISSN:
2046-2069
Subject:
sensors (equipment),   etc   ; detection limit; electrochemistry; electrodes; methanol; oxidation; platinum; thiols;     Show all 8 Subjects
Abstract:
... The methanol oxidation reaction (MOR) has recently gained a lot of attention due to its application in fuel cells and electrochemical sensors. To enhance the MOR, noble metal nanoparticles should be homogeneously dispersed on the electrode surface with the aid of one suitable support. In this work, 4-aminothiophenol (4-ATP) molecules which contain simultaneously amine and thiol groups were electro ...
DOI:
10.1039/d2ra00040g

13. Gap-enhance Raman tags (GERTs) competitive immunoassay based Raman imaging for the quantitative detection of trace florfenicol in milk

Author:
Jiajia Shan; Xinjing Li; Shuqing Han; Tao Ren; Mengke Jin; Xue Wang
Source:
Food chemistry 2022 v.391 pp. 133233
ISSN:
0308-8146
Subject:
sensors (equipment),   etc   ; detection limit; florfenicol; food chemistry; immunoassays; milk; models;     Show all 7 Subjects
Abstract:
... Surface Enhanced Raman Spectroscopy (SERS) is a highly sensitive detection method, however, it is still challenging to directly detect florfenicol due to its low Raman activity. To solve this problem, we present a novel sensor for selective detection of florfenicol residue in milk using gap-enhance Raman tags (GERTs) competitive immunoassay. In this nanosensor, Raman reporters 4-mercaptobenzoic ac ...
DOI:
10.1016/j.foodchem.2022.133233

14. A dual-functional polyaniline film-based flexible electrochemical sensor for the detection of pH and lactate in sweat of the human body

Author:
Chonghui Zhu; Hua Xue; Hongran Zhao; Teng Fei; Sen Liu; Qidai Chen; Bingrong Gao; Tong Zhang
Source:
Talanta 2022 v.242 pp. 123289
ISSN:
0039-9140
Subject:
sensors (equipment),   etc   ; crystallization; electrochemistry; humans; lactic acid; pH; polyaniline; sweat;     Show all 8 Subjects
Abstract:
... A flexible dual functional electrochemical sensor based on macroscopic polyaniline (PANI) film is reported. The PANI film is prepared by interfacial synthesis without any additional templates and surfactants, and is easily transferred from the water surface to any substrate. The surface of PANI film is flat and has a certain degree of crystallization. The PANI film exhibits good electrochemical pr ...
DOI:
10.1016/j.talanta.2022.123289

15. Quantum dots based sensitive nanosensors for detection of antibiotics in natural products: A review

Author:
Mohammad Mehdi Sabzehmeidani; Mahmood Kazemzad
Source:
Science of the total environment 2022 v.810 pp. 151997
ISSN:
0048-9697
Subject:
sensors (equipment),   etc   ; colorimetry; electrochemiluminescence; environment; fluorescence; graphene; humans; metabolism; photoluminescence;     Show all 9 Subjects
Abstract:
... Residual antibiotics in food products originated from administration of the antibiotics to animals may be accumulated through food metabolism in the human body and endanger safety and health. Thus, developing a prompt and accurate way for detection of antibiotics is a crucial issue. The zero-dimensional fluorescent probes including metals based, carbon and graphene quantum dots (QDs), are highly s ...
DOI:
10.1016/j.scitotenv.2021.151997

16. Specifically triggered dissociation based ratiometric electrochemical sensor for H2O2 measurement in food samples

Author:
Shan Luo; Xianwen Kan
Source:
Food chemistry 2022 v.387 pp. 132922
ISSN:
0308-8146
Subject:
sensors (equipment),   etc   ; aminophenols; detection limit; dissociation; electrodes; food chemistry; nanogold;     Show all 7 Subjects
Abstract:
... A novel ratiometric strategy based electrochemical sensor was developed to quantitative assay of H₂O₂ in different food samples. 4-aminophenylboronic acid pinacol ester (ABAPE) dissociation was specifically triggered by H₂O₂ to generate electro-active 4-aminophenol (4-AP), which not only can be oxidized to indirectly indicate the concentration of H₂O₂, but also endowed the sensor with high selecti ...
DOI:
10.1016/j.foodchem.2022.132922

17. Graphite carbon nitride-modified screen-printed electrode as a highly sensitive and selective sensor for detection of amaranth

Author:
Peyman Mohammadzadeh Jahani; Mohammad Reza Aflatoonian; Reza Abbasi Rayeni; Antonio Di Bartolomeo; Sayed Zia Mohammadi
Source:
Food and chemical toxicology 2022 v.163 pp. 112962
ISSN:
0278-6915
Subject:
sensors (equipment),   etc   ; detection limit; dyes; electrodes; graphene; oxidation; toxicity; toxicology; voltammetry;     Show all 9 Subjects
Abstract:
... This work presented a particular electrochemical sensor for analysis of amaranth, an azo toxic dye. A graphite nitride carbon (g-C₃N₄) was used to modify an electro-treated screen-printed electrode (g-C₃N₄/SPE) for electroanalysis of amaranth. Physicochemical characteristics and analytical performance of g-C₃N₄/SPE were investigated by relevant equipment. The g-C₃N₄/SPE when comparing with bare SP ...
DOI:
10.1016/j.fct.2022.112962

18. A time-resolved ratiometric luminescent anthrax biomarker nanosensor based on an Ir(iii) complex-doped coordination polymer network

Author:
Hui Zhang; Meng Sun; Ying Wang; Li Yin; Dik-Lung Ma; Chung-Hang Leung; Lihua Lu
Source:
Journal of materials chemistry B 2022 v.10 no.11 pp. 1853-1857
ISSN:
2050-7518
Subject:
sensors (equipment),   etc   ; anthrax; aqueous solutions; biomarkers; coordination polymers; detection limit; luminescence;     Show all 7 Subjects
Abstract:
... Herein, an Ir(iii) complex-doped coordination polymer network (Ir(iii)@GMP–Eu³⁺) is fabricated for the first time for the ratiometric luminescent detection of the anthrax biomarker 2,6-dipicolinic acid (DPA) through the analysis of time-resolved emission spectra (TRES). The linear detection range is from 10 nM to 5 μM with a detection limit of 3.3 nM in aqueous solution. Attributed to the long lif ...
DOI:
10.1039/d1tb02652f

19. Advances in nanosensors for cardiovascular disease detection

Author:
Xiaofang Tang; Yaping Zhu; Weijiang Guan; Wenjuan Zhou; Peifa Wei
Source:
Life sciences 2022 v.305 pp. 120733
ISSN:
0024-3205
Subject:
sensors (equipment),   etc   ; biomarkers; cardiovascular diseases; disease detection; electrochemistry; morbidity; mortality; prediction;     Show all 8 Subjects
Abstract:
... Cardiovascular diseases (CVDs) are a leading cause of morbidity and mortality around the world. The physiological or pathological processes of CVDs can be well indicated by timely and accurate diagnosis of relevant biomarkers and function parameters. Nanosensors integrating the advantages of nanomaterials and sensing platforms have shown good potential for rapid diagnosis of CVDs, especially for e ...
DOI:
10.1016/j.lfs.2022.120733

20. Green preparation of carbon quantum dots with wolfberry as on-off-on nanosensors for the detection of Fe3+ and l-ascorbic acid

Author:
Lin Gu; Jingru Zhang; Guangxin Yang; Yunyu Tang; Xuan Zhang; Xuanyun Huang; Wenlei Zhai; Essy Kouadio Fodjo; Cong Kong
Source:
Food chemistry 2022 v.376 pp. 131898
ISSN:
0308-8146
Subject:
sensors (equipment),   etc   ; Lycium; ascorbic acid; detection limit; fluorescence; food chemistry; lakes;     Show all 7 Subjects
Abstract:
... A green and facile hydrothermal synthesis approach is proposed for the preparation of nitrogen-doped carbon quantum dots (N-CQDs) with wolfberry. These N-CQDs were developed as a highly sensitive fluorescent ‘on-off-on’ switch sensor for the sensing of Fe³⁺ and l-ascorbic acid (AA). The N-CQDs displayed superior fluorescence characteristics of CQDs with a quantum yield up to 22%. The N-CQDs were d ...
DOI:
10.1016/j.foodchem.2021.131898