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82,434 Results Found

  • Feature Paper
  • Article
  • Open Access
4 Citations
4,964 Views
13 Pages

The Design and Cell-Free Protein Synthesis of a Pembrolizumab Single-Chain Variable Fragment

  • Landon E. Ebbert,
  • Tyler J. Free,
  • Mehran Soltani and
  • Bradley C. Bundy

Background/Objectives: Cancer is a leading cause of death. However, recently developed immunotherapies have shown significant promise to improve cancer treatment outcomes and survival rates. Pembrolizumab, a cancer immunotherapy drug, enables a stron...

  • Article
  • Open Access
5 Citations
3,091 Views
13 Pages

Engineering the Signal Resolution of a Paper-Based Cell-Free Glutamine Biosensor with Genetic Engineering, Metabolic Engineering, and Process Optimization

  • Tyler J. Free,
  • Joseph P. Talley,
  • Chad D. Hyer,
  • Catherine J. Miller,
  • Joel S. Griffitts and
  • Bradley C. Bundy

12 May 2024

Specialized cancer treatments have the potential to exploit glutamine dependence to increase patient survival rates. Glutamine diagnostics capable of tracking a patient’s response to treatment would enable a personalized treatment dosage to opt...

  • Article
  • Open Access
2 Citations
2,526 Views
15 Pages

Glutamine is an essential biomolecule that plays a pivotal role in many diseases, such as cancer, where it can serve as fuel for rapid proliferation. Treatments for these diseases can be monitored and optimized through the detection of glutamine, tho...

  • Article
  • Open Access
11 Citations
5,720 Views
13 Pages

Engineering At-Home Dilution and Filtration Methods to Enable Paper-Based Colorimetric Biosensing in Human Blood with Cell-Free Protein Synthesis

  • Tyler J. Free,
  • Ryan W. Tucker,
  • Katelyn M. Simonson,
  • Sydney A. Smith,
  • Caleb M. Lindgren,
  • William G. Pitt and
  • Bradley C. Bundy

6 January 2023

Diagnostic blood tests can guide the administration of healthcare to save and improve lives. Most clinical biosensing blood tests require a trained technician and specialized equipment to process samples and interpret results, which greatly limits te...

  • Article
  • Open Access
2 Citations
2,869 Views
11 Pages

27 September 2023

Thyroid receptor signaling controls major physiological processes and disrupted signaling can cause severe disorders that negatively impact human life. Consequently, methods to detect thyroid receptor ligands are of great toxicologic and pharmacologi...

  • Article
  • Open Access
1 Citations
3,531 Views
19 Pages

20 April 2021

Binary cube-free language and ternary square-free language are two “canonical” representatives of a wide class of languages defined by avoidance properties. Each of these two languages can be viewed as an infinite binary tree reflecting the prefix or...

  • Article
  • Open Access
12 Citations
7,006 Views
11 Pages

Damage Evaluation of Free-Free Beam Based on Vibration Testing

  • Duong Huong Nguyen,
  • Long Viet Ho,
  • Thanh Bui-Tien,
  • Guido De Roeck and
  • Magd Abdel Wahab

Damage can be detected by vibration responses of a structure. Damage changes the modal properties such as natural frequencies, mode shapes, and damping ratios. Natural frequency is one of the most frequently used damage indicators. In this paper, the...

  • Feature Paper
  • Review
  • Open Access
25 Citations
12,871 Views
19 Pages

The Evolution of Cell Free Biomanufacturing

  • Michael Vilkhovoy,
  • Abhinav Adhikari,
  • Sandra Vadhin and
  • Jeffrey D. Varner

8 June 2020

Cell-free systems are a widely used research tool in systems and synthetic biology and a promising platform for manufacturing of proteins and chemicals. In the past, cell-free biology was primarily used to better understand fundamental biochemical pr...

  • Article
  • Open Access
1 Citations
1,064 Views
15 Pages

Notes on the Free Additive Convolution

  • Shokrya S. Alshqaq,
  • Raouf Fakhfakh and
  • Fatimah Alshahrani

9 June 2025

The investigation of free additive convolution is a key concept in free probability theory, offering a framework for studying the sum of freely independent random variables. This paper uses free additive convolution and measure dilations to investiga...

  • Article
  • Open Access
7 Citations
4,028 Views
11 Pages

Is Adolescents’ Free Sugar Intake Associated with the Free Sugar Intake of Their Parents?

  • Rou Zhang,
  • Qiping Yang,
  • Qiong Tang,
  • Yue Xi,
  • Qian Lin and
  • Lina Yang

10 November 2022

High free sugar intake can lead to increased dental caries, obesity, and other health risks among adolescents. Studies have shown that family factors, especially parents, are one of the primary factors influencing adolescents’ sugar intake. Thi...

  • Article
  • Open Access
7 Citations
2,875 Views
14 Pages

Structure–Property Relationships for Fluorinated and Fluorine-Free Superhydrophobic Crack-Free Coatings

  • Sevil Turkoglu,
  • Jinde Zhang,
  • Hanna Dodiuk,
  • Samuel Kenig,
  • Jo Ann Ratto Ross,
  • Saurabh Ankush Karande,
  • Yujie Wang,
  • Nathalia Diaz Armas,
  • Margaret Auerbach and
  • Joey Mead

24 March 2024

In this study, particle loading, polyfluorinated alkyl silanes (PFAS or FAS) content, superhydrophobicity, and crack formation for nanocomposite coatings created by the spray coating process were investigated. The formulations comprised hydrophobic s...

  • Article
  • Open Access
948 Views
13 Pages

r-Free Convolution and Variance Function

  • Shokrya S. Alshqaq,
  • Raouf Fakhfakh and
  • Fatimah Alshahrani

10 February 2025

The concept of r-free convolution (which is represented by r) was introduced for 0r1. It is equal to the Boolean additive convolution ⊎ if r=0 and reduced to the free additive convolution ⊞ when r=1. This paper presents certain fe...

  • Article
  • Open Access
6 Citations
2,505 Views
19 Pages

26 December 2022

Beam models are widely applied in civil engineering, transport, and industry because the beams are basic structural elements. When dealing with the high-order modes of beam in the context of applying the modal analysis method, the numerical instabili...

  • Article
  • Open Access
24 Citations
4,165 Views
17 Pages

Lead-Free Perovskite Homojunction-Based HTM-Free Perovskite Solar Cells: Theoretical and Experimental Viewpoints

  • Sajid Sajid,
  • Salem Alzahmi,
  • Imen Ben Salem,
  • Jongee Park and
  • Ihab M. Obaidat

Simplifying the design of lead-free perovskite solar cells (PSCs) has drawn a lot of interest due to their low manufacturing cost and relative non-toxic nature. Focus has been placed mostly on reducing the toxic lead element and eliminating the requi...

  • Article
  • Open Access
1 Citations
2,810 Views
25 Pages

When Is a Graded Free Complex Exact?

  • David C. Molano,
  • Javier A. Moreno and
  • Carlos E. Valencia

19 September 2022

Minimal free resolutions of a finitely generated module over a polynomial ring S=k[x], with variables x={x1,,xn} and a field k have been extensively studied. Almost all the results in the literature about minimal free resolutions give their B...

  • Article
  • Open Access
34 Citations
6,855 Views
14 Pages

Free Dietary Choice and Free-Range Rearing Improve the Product Quality, Gait Score, and Microbial Richness of Chickens

  • Siyu Chen,
  • Hai Xiang,
  • Xu Zhu,
  • Hui Zhang,
  • Dan Wang,
  • Huagui Liu,
  • Jikun Wang,
  • Tao Yin,
  • Langqing Liu and
  • Xingbo Zhao
  • + 3 authors

1 June 2018

Poultry welfare has been extensively studied; however, there is a lack of rigorous scientific knowledge relating to the different aspects of welfare factors and how this may contribute to the production quantity and product quality as well as the wel...

  • Article
  • Open Access
13 Citations
3,137 Views
18 Pages

Persistent Free Radicals in Petroleum

  • Lina M. Yañez Jaramillo,
  • Joy H. Tannous and
  • Arno de Klerk

11 July 2023

The persistent free radical content in petroleum is of the order 1018 spins/g (1 μmol/g), with higher and lower values found depending on origin and in different distillation fractions. The field of persistent free radicals in petroleum was review...

  • Article
  • Open Access
47 Citations
7,419 Views
26 Pages

4 March 2019

The modelling of complex free surface flows over weirs and in the vicinity of bridge piers is presented in a numerical model emulating open channel flow based on the Reynolds Averaged Navier-Stokes (RANS) equations. The importance of handling the tur...

  • Article
  • Open Access
6 Citations
2,712 Views
14 Pages

An Analytical Study of the Latest Trends of Free-Form Molds

  • Jongyoung Youn,
  • Jiyoung Yun,
  • Sungjin Kim,
  • Bumjin Han,
  • Sunglok Do and
  • Donghoon Lee

7 March 2022

With the development of technology, the number of free-form structures—as well as their value—is increasing. In order to construct such free-form structures, a number of studies are being conducted on free-form molds from multifaceted per...

  • Article
  • Open Access
6 Citations
7,836 Views
21 Pages

6 March 2019

This paper explores the stochastic collocation technique, applied on a monotonic spline, as an arbitrage-free and model-free interpolation of implied volatilities. We explore various spline formulations, including B-spline representations. We explain...

  • Review
  • Open Access
17 Citations
7,307 Views
24 Pages

Model-Free Predictive Control and Its Applications

  • Muhammad Nauman,
  • Wajiha Shireen and
  • Amir Hussain

14 July 2022

Predictive control offers many advantages such as simple design and a systematic way to handle constraints. Model predictive control (MPC) belongs to predictive control, which uses a model of the system for predictions used in predictive control. A m...

  • Review
  • Open Access
1 Citations
2,637 Views
14 Pages

26 November 2023

In Philadelphia chromosome-positive B-cell (Ph+) acute lymphoblastic leukemia (LLA), growing evidence has accumulated regarding the efficacy of low-intensity and chemo-free regimens. Our objective was to analyze all recent trials evaluating these tre...

  • Article
  • Open Access
2 Citations
1,662 Views
10 Pages

19 February 2025

A portable incoherent digital holography system without a polarization filter or a refractive lens was developed. Phase-shifted self-interference incoherent holograms of light diffracted from an object were generated without attenuation due to a pola...

  • Review
  • Open Access
13 Citations
6,698 Views
24 Pages

Free Fatty Acids and Free Fatty Acid Receptors: Role in Regulating Arterial Function

  • Fengzhi Yu,
  • Boyi Zong,
  • Lili Ji,
  • Peng Sun,
  • Dandan Jia and
  • Ru Wang

The metabolic network’s primary sources of free fatty acids (FFAs) are long- and medium-chain fatty acids of triglyceride origin and short-chain fatty acids produced by intestinal microorganisms through dietary fibre fermentation. Recent studie...

  • Article
  • Open Access
5 Citations
2,832 Views
18 Pages

The Inhibitory Effect of Free Nitrous Acid and Free Ammonia on the Anoxic Phosphorus Uptake Rate of Polyphosphate-Accumulating Organisms

  • Dimitris Andreadakis,
  • Constantinos Noutsopoulos,
  • Daniel Mamais,
  • Vera Charalambous,
  • Asimina Koukoura and
  • Simos Malamis

14 March 2022

The purpose of this study is to investigate the effect of free nitrous acid (FNA) and free ammonia (FA) on the anoxic phosphorus uptake rate (PUR) of polyphosphate-accumulating organisms (PAOs) via the utilization of nitrite. With this goal, upon dev...

  • Article
  • Open Access
3 Citations
8,610 Views
29 Pages

25 August 2010

A mobile loop changes its conformation from “open” (free enzyme) to “closed” upon ligand binding. The difference in the Helmholtz free energy, ΔFloop between these states sheds light on the mechanism of binding. With our “hypothetical scanning molecu...

  • Article
  • Open Access
2 Citations
2,508 Views
17 Pages

30 November 2020

Peer-to-peer (P2P) architecture is increasingly gaining attention as a potential solution for the scalability problem facing the Internet of Things (IoT). It can be adopted for the fog computing layer to sustain the massive flow of data from constrai...

  • Review
  • Open Access
67 Citations
16,548 Views
23 Pages

Biotechnology Applications of Cell-Free Expression Systems

  • August Brookwell,
  • Javin P. Oza and
  • Filippo Caschera

8 December 2021

Cell-free systems are a rapidly expanding platform technology with an important role in the engineering of biological systems. The key advantages that drive their broad adoption are increased efficiency, versatility, and low cost compared to in vivo...

  • Article
  • Open Access
15 Citations
8,337 Views
18 Pages

Safeguarding Free-Flowing Rivers: The Global Extent of Free-Flowing Rivers in Protected Areas

  • Jeffrey J. Opperman,
  • Natalie Shahbol,
  • Jeffrey Maynard,
  • Günther Grill,
  • Jonathan Higgins,
  • Dieter Tracey and
  • Michele Thieme

5 March 2021

Approximately one-third of long rivers remain free-flowing, and rivers face a range of ongoing and future threats. In response, there is a heightened call for actions to reverse the freshwater biodiversity crisis, including through formal global targ...

  • Article
  • Open Access
2 Citations
1,904 Views
23 Pages

Opioid-Free Anaesthesia Reduces Complications in Head and Neck Microvascular Free-Flap Reconstruction

  • Paulo-Roberto Cardoso Ferreira,
  • Rita Isabel Pinheiro De Oliveira,
  • Marta Dias Vaz,
  • Carla Bentes and
  • Horácio Costa

10 October 2023

Head and neck free-flap microvascular surgeries are complex and resource-intensive procedures where proper conduct of anaesthesia plays a crucial role in the outcome. Flap failure and postoperative complications can be attributed to multiple factors,...

  • Article
  • Open Access
68 Citations
15,228 Views
12 Pages

Fundamental Study on the Impact of Gluten-Free Starches on the Quality of Gluten-Free Model Breads

  • Stefan W. Horstmann,
  • Markus C. E. Belz,
  • Mareile Heitmann,
  • Emanuele Zannini and
  • Elke K. Arendt

21 April 2016

Starch is widely used as an ingredient and significantly contributes to texture, appearance, and overall acceptability of cereal based foods, playing an important role due to its ability to form a matrix, entrapping air bubbles. A detailed characteri...

  • Review
  • Open Access
212 Citations
42,108 Views
34 Pages

A User’s Guide to Cell-Free Protein Synthesis

  • Nicole E. Gregorio,
  • Max Z. Levine and
  • Javin P. Oza

Cell-free protein synthesis (CFPS) is a platform technology that provides new opportunities for protein expression, metabolic engineering, therapeutic development, education, and more. The advantages of CFPS over in vivo protein expression include it...

  • Feature Paper
  • Article
  • Open Access
14 Citations
5,090 Views
16 Pages

Maximizing Free Energy Gain

  • Artemy Kolchinsky,
  • Iman Marvian,
  • Can Gokler,
  • Zi-Wen Liu,
  • Peter Shor,
  • Oles Shtanko,
  • Kevin Thompson,
  • David Wolpert and
  • Seth Lloyd

20 January 2025

Maximizing the amount of work harvested from an environment is important for a wide variety of biological and technological processes, from energy-harvesting processes such as photosynthesis to energy storage systems such as fuels and batteries. Here...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,254 Views
10 Pages

The Cyclic Triangle-Free Process

  • Yu Jiang,
  • Meilian Liang,
  • Yanmei Teng and
  • Xiaodong Xu

29 July 2019

For positive integers s and t, the Ramsey number R ( s , t ) is the smallest positive integer n such that every graph of order n contains either a clique of order s or an independent set of order t. The triangle-free process begins with an em...

  • Article
  • Open Access
10 Citations
7,649 Views
15 Pages

Consumer Satisfaction with the Quality and Availability of Gluten-Free Products

  • Nada Knežević,
  • Sven Karlović,
  • Krisztina Takács,
  • Viktória Szűcs,
  • Sara Knežević,
  • Marija Badanjak Sabolović and
  • Suzana Rimac Brnčić

21 September 2024

The aim of this study is to investigate consumer attitudes toward the quality and availability of gluten-free products. For this purpose, quantitative research was conducted using a questionnaire completed by 107 respondents who consumed gluten-free...

  • Article
  • Open Access
1 Citations
4,949 Views
17 Pages

Binary Context-Free Grammars

  • Sherzod Turaev,
  • Rawad Abdulghafor,
  • Ali Amer Alwan,
  • Ali Abd Almisreb and
  • Yonis Gulzar

24 July 2020

A binary grammar is a relational grammar with two nonterminal alphabets, two terminal alphabets, a set of pairs of productions and the pair of the initial nonterminals that generates the binary relation, i.e., the set of pairs of strings over the ter...

  • Article
  • Open Access
25 Citations
4,826 Views
22 Pages

Organ-Specific Analysis of Morus alba Using a Gel-Free/Label-Free Proteomic Technique

  • Wei Zhu,
  • Zhuoheng Zhong,
  • Shengzhi Liu,
  • Bingxian Yang,
  • Setsuko Komatsu,
  • Zhiwei Ge and
  • Jingkui Tian

Morus alba is an important medicinal plant that is used to treat human diseases. The leaf, branch, and root of Morus can be applied as antidiabetic, antioxidant, and anti-inflammatory medicines, respectively. To explore the molecular mechanisms under...

  • Review
  • Open Access
2,941 Views
24 Pages

Amplification-Free Testing of microRNA Biomarkers in Cancer

  • Bahareh Soleimanpour,
  • Juan Jose Diaz Mochon and
  • Salvatore Pernagallo

21 August 2025

Background: Circulating miRNAs have been identified as potential biomarkers for the early diagnosis and monitoring of cancers. However, limitations of polymerase chain reaction (PCR)-based methods are currently delaying the transition of miRNA resear...

  • Article
  • Open Access
1 Citations
1,112 Views
8 Pages

Some Results on the Free Poisson Distribution

  • Ayed. R. A. Alanzi,
  • Ohud A. Alqasem,
  • Maysaa Elmahi Abd Elwahab and
  • Raouf Fakhfakh

24 July 2024

Let K+(μi)={Qsiμi,si(m0μi,m+μi)}, i=1,2, be two CSK families generated by the nondegenerate probability measures μ1 and μ2 with support bounded from above. Define the set of measures L=K+(μ1)K+(μ2)={Qs1μ1Q...

  • Article
  • Open Access
28 Citations
7,436 Views
12 Pages

Free Sugars Consumption in Canada

  • Huma Rana,
  • Marie-Claude Mallet,
  • Alejandro Gonzalez,
  • Marie-France Verreault and
  • Sylvie St-Pierre

27 April 2021

Free sugars (FS) are associated with a higher risk of dental decay in children and an increased risk of weight gain, overweight and obesity and type 2 diabetes. For this reason, Canada’s Food Guide recommends limiting foods and beverages that contrib...

  • Article
  • Open Access
1 Citations
676 Views
16 Pages

On the t-Transformation of Free Convolution

  • Shokrya S. Alshqaq,
  • Ohud A. Alqasem and
  • Raouf Fakhfakh

18 May 2025

The study of the stability of measure families under measure transformations, as well as the accompanying limit theorems, is motivated by both fundamental and applied probability theory and dynamical systems. Stability analysis tries to uncover invar...

  • Article
  • Open Access
12 Citations
4,509 Views
14 Pages

14 February 2019

Gluten-free (GF) product labeling is one of the most important determinants of food product choices by patients with celiac disease, due to the need for following a GF diet. The aim of this study was to assess the role of front-of-package GF product...

  • Review
  • Open Access
15 Citations
5,339 Views
21 Pages

Photocatalyzed Transformation of Free Carbohydrates

  • Mehdi Omri,
  • Frédéric Sauvage,
  • Séma Golonu,
  • Anne Wadouachi and
  • Gwladys Pourceau

19 December 2018

In the growing context of sustainable chemistry, one of the challenges of organic chemists is to develop efficient and environmentally friendly methods for the synthesis of high-added-value products. Heterogeneous photocatalytic transformations have...

  • Review
  • Open Access
121 Citations
17,330 Views
15 Pages

3 February 2021

Since the discovery in 1922 of 2,2-diphenyl-1-(2,4,6-trinitrophenyl) hydrazyl stable free radical (DPPH·), the chemistry of such open-shell compounds has developed continuously, allowing for both theoretical and practical advances in the free radical...

  • Article
  • Open Access
1 Citations
893 Views
13 Pages

14 March 2025

In this study, based on previous fundamental research on weldability, we ultimately aim to propose a filler metal that enables hot crack-free repair welding of 247LC superalloy while minimizing compositional modification. First, we investigated the l...

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