Results 91 to 100 of about 240,885 (306)

Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes

Advanced Materials Technologies, EarlyView.
We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard, Thulasinath Raman Venkatesan, Michael Bauer, Valentin Razvan Lupu, Philipp Scheidegger, Francesco Taddei, Frank A. Nüesch, Dorina M. Opris   +7 more
wiley   +1 more source

Enhancing Small Molecule Sensing With Aptameric Functionalized Nano Devices

Advanced Materials Technologies, EarlyView.
Unveiling an ultra‐sensitive, non‐invasive neurotransmitter sensor. For the first time, a nanoscale sensor for detecting an important neurotransmitter was demonstrated using micro‐electromechanical systems (MEMS) technology. Our approach utilized field‐effect transistor (FET)‐based readout to enable pico‐molar detection of biomarkers in sweat.
Thi Thanh Ha Nguyen, Cong Minh Nguyen, Quang Thang Trinh, Minh Anh Huynh, Khanh Vinh Ho, Dang Co Pham, Dzung Dao, Sven Ingebrandt, Sina Jamali, Xuan Thang Vu, Nam‐Trung Nguyen, Tuan‐Khoa Nguyen   +11 more
wiley   +1 more source

Determination of Amitraz Varroaset Residue in Honey by High Performance Liquid Chromatography HPLC

Journal of Agricultural Sciences, 2008
Amitraz Varroaset is an acaricide applied against Varroa destructor Anderson & Trueman Acarina: Varroidae infestations on honeybees Apis mellifera L. Hymenoptera: Apidae . Amitraz residue in honey was determined by HPLC in Ankara, Turkey.
Sultan Çobanoğlu, Şebnem Tüze
doaj  

Biodegradable Wireless Soil Urea Sensor Using Metamaterial Perfect Absorber for Distributed Deployment in Precision Agriculture

Advanced Materials Technologies, EarlyView.
In this study, we propose a biodegradable wireless soil urea sensor for precision agriculture. The sensor's electromagnetic response varies depending on the urea concentration, allowing the measurement of relative soil urea concentrations by analyzing the time‐transient electromagnetic response.
Yu Tanaami, Ken Sakabe, Tetsuya Yarimizo, Yasutaka Murakami, Tetsuo Kan, Hiroaki Onoe   +5 more
wiley   +1 more source

Food Sample Preparation for the Determination of Sulfonamides by High-Performance Liquid Chromatography: State-of-the-Art

Separations, 2018
Antibiotics are a common practice in veterinary medicine, mainly for therapeutic purposes. Sectors of application include livestock farming, aquacultures, and bee-keeping, where bacterial infections are frequent and can be economically damaging. However,
Dimitrios Bitas, Abuzar Kabir, Marcello Locatelli, Victoria Samanidou   +3 more
doaj   +1 more source

Folates in berries [PDF]

, 2003
Folate concentrations in berries and berry products were investigated, determining folate retention from raw material to the final product. Folate content was quantified using a modified and systematically evaluated radioprotein-binding assay (RPBA). The
Strålsjö, Lena
core  

ANALYSIS OF URINARY PORPHYRINS BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY-ELECTROSPRAY IONIZATION MASS SPECTROMETRY

, 2011
A high-performance liquid chromatography coupled with electrospray ionization mass spectrometry (HPLC-ESI-MS) method was developed for the simultaneous separation and detection of six porphyrins, namely uroporphyrin (UP), heptacarboxylic acid porphyrin ...
Chunyang Liao, Lingxin Chen, Xu, Shoufang, Cai, Zongwei, Chen, Lingxin, Li, Jinhua, Song, Xingliang, Xingliang Song, Zongwei Cai, Liao, Chunyang, Jinhua Li, Shoufang Xu   +11 more
core   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

Advanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao, Jennifer Michel, Eline Lorer, Markus Weinmann, Jacques Le Gouis, Claire Léon, Sibille Perrochon, David Alvarez, Vincent Leemans, Iñaki Balanzategui Guijarro, Jordi Moya Laraño, Sara Sánchez Moreno, Symanczik Sarah, Waibel Matthias, Hervé Vanderschuren, Cécile Thonar, Pierre Delaplace, Dominique Van Der Straeten   +17 more
wiley   +1 more source

Formation of Tetrahydro-β-Carbolines in Thermally Processed Foods and Their Detection Methods [PDF]

Shipin Kexue
Tetrahydro-β-carbolines (THβCs) are a class of alkaloids widely existing in foods, and the formation pathways of THβCs in the human body include endogenous and exogenous ones. The endogenous pathway is related to the metabolism of tryptophan in the human
CAO Jiamin, LI Xuechen, XU Jiahao, YANG Yong, HUI Teng
doaj   +1 more source

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

Advanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou, Sisi Luo, Binliang Tang, Zhiqiang Liu, Yuchuan Zhou, Yicong Meng, Zhengmu Wu, Zheng Sun, Weihui Shi, Jianzhong Sheng, Chuanjin Yu, Zhenhua Li, Siyi Wei, Mo Zhang, Yujie Luo, Jing Yan, Xueyun Qin, Jiahang Mo, Chengliang Zhou, Jinsong Li, Hefeng Huang, Yifu Ding, Guolian Ding   +22 more
wiley   +1 more source