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| 1 | Development and Characterization of Eco-Friendly Non-Isocyanate Urethane Monomer from Jatropha curcas Oil for Wood Composite Applications显示文摘The aim of this research work was to evaluate the potential of using renewable natural feedstock,i.e.,Jatropha curcas oil(JCO)for the synthesis of non-isocyanate polyurethane(NIPU)resin for wood composite applications.Commercial polyurethane(PU)is synthesized through a polycondensation reaction between isocyanate and poly-ol.However,utilizing toxic and unsustainable isocyanates for obtaining PU could contribute to negative impacts on the environment and human health.Therefore,the development of PU from eco-friendly and sustainable resources without the isocyanate route is required.In this work,tetra-n-butyl ammonium bromide was used as the activator to open the epoxy ring with 3-Aminopropyltriethoxisylane as a catalyst to yield urethane of JCO(UJCO).The UJCO were characterized by Fourier Transform Infra-Red spectroscopy(FTIR)and their oxirane,and hydroxyl values were measured.The result showed that a decrease in oxirane value was found while the hydroxyl value was increased during the time,confirming that the urethane group was formed.The presence of functional groups in FTIR spectra at wave numbers 1732.08,1562.34,and 3348.42 cm^(−1) indicates the functional groups of C=O(urethane carbonyl),–NH,and–OH,respectively confirmed this finding.The potential applications of NIPU in the wood composite were also outlined. | Samsul Bhakri Muhammad Ghozali Edy Cahyono Evi Triwulandari Witta Kartika Restu Nissa Nurfajrin Solihat Apri Heri Iswanto Petar Antov Viktor Savov Lee Seng Hua ErikaAyu Agustiany Lubos Kristak Widya Fatriasari | 2023 | Journal of Renewable Materials2023，11，1： | 2 |
| 2 | Ganglion cells apoptosis in diabetic rats as early prediction of glaucoma:a study of Brn3b gene expression and association with change of quantity of NO, caspase-3, NF-κB, and TNF-α显示文摘AIM:To find a new concept to show whether or not apoptosis of retinal ganglion cells(RGCs)canbe determined in the histology of acute hyperglycemia in the role of expressed Brn3b gene related to nitric oxide(NO),caspase-3,nuclear factor kappa-B(NF-κB),and tumor necrosis factor-α(TNF-α)as an early predictor of primary open angle glaucoma(POAG)eyes and their associations.METHODS:Experimental in vivo study was carried out using adult male,white Sprague-Dawley rats aged≥2 mo,weighing 150-200 g.The animals were divided into two groups,one group receiving intraperitoneal injection of streptozotociz 50 mg/kg in 0.01 mol/L citricbuffer and p H 4.5 and a comparison made with the control group.Retinal tissue was divided into two parts(both experimental and control groups respectively):a)right retina for immunohistochemistry(IHC;caspase-3 and TNF-α);b)left retina was divided into two parts for the purpose of real-time polymerase chain reaction(PCR)test(RNA extraction for Brn3b gene expression analysis)and ELISA test(NO and NF-κB).RESULTS:The experimental group showed a decrease in Brn3b gene expression compared to the control group(1.3-fold lower in 2nd month;1.1-fold lower in 4th month and 2.5-fold lower in 6th month).However,there was a decrease of NO,caspase-3,and an increase of NF-κB and TNF-αquantity.CONCLUSION:The expression of m RNA Brn3b gene is inversely proportional to apoptosis in RGCs.The quantity of NO,caspase-3,NF-κB and TNF-αis influential in expression of Brn3b in RGCs caused by hyperglycemia in diabetic rats. | Irwan Tjandra Purnomo Soeharso Widya Artini Nurjati Chairani Siregar Andi Arus Victor | 2020 | International Journal of Ophthalmology(English edition)2020，13，12： | 2 |
| 3 | Polyurethane/clay nanocomposites foams: Processing, structure and properties显示文摘 | Cao Xia James Lee Widya Tomy | 2005 | Polymer2005，46，： | 1 |
| 4 | Short-term caloric restriction normalizes hypothalamic neuronal responsiveness to glucose ingestion in patients with type 2 diabetes 显示文摘 | Teeuwisse WM Widya RL Paulides M | 2012 | Diabetes2012，61，： | 1 |
| 5 | Mobile patient monitoring:The mobihealth system显示文摘 | Halteren A V Widya I Dokovsky N | | 0，，03： | 1 |
| 6 | Polyurethane/clay nanocomposites foams:processing,structure and properties显示文摘 | Xia Cao L James Lee Tomy Widya | | 0，，03： | 1 |
| 7 | Analytic hierarchy process:An overview of applications显示文摘 | Widya O S Kumar S | 2006 | European Journal of Operational Research2006，169，1： | 1 |
| 8 | Polyurethane/ClayNanocomposites Foam:Processing, Structure and Properties 显示文摘 | Cao Xia Lee James L Widya Tomy et d | 2005 | Polymer2005，46，： | 1 |
| 9 | Polyurethane / clay nanocomposites foams:Processing, structure and properties显示文摘 | Cao X Lee L J Widya T | 2005 | Polym2005，46，3： | 1 |
| 10 | Polyurethane/clay nanocom- posites foams:processing, structure and properties 显示文摘 | Cao X James Lee L Widya et a/ | 2005 | Polymer2005，46，3： | 1 |
| 11 | Polyurethane/clay nanocomposites foams:Processing,tructure and properties显示文摘 | CAO Xia JAMES Lee WIDYA Tomy | 2005 | Polymer2005，46，3： | 1 |
| 12 | Polyurethane/clay nanocomposites foams : processing, structure and properties 显示文摘 | Cao Xia James Lee L Widya Tomy | 2005 | Polymer2005，46，： | 1 |
| 13 | Right ven- tricular involvement in diabetic cardiomyopathy 显示文摘 | Widya RL van der Meer RW Smit JW | 2013 | Diabe- tes Care2013，36，2： | 1 |
| 14 | Polyurethane/clay nanocomposites foams : processing, structure and properties 显示文摘 | Cao X James L L Widya T | 2005 | Polymer2005，46，3： | 1 |
| 15 | Polyurethane/clay nanocomposites foams,Processing,structure and properties显示文摘 | Xia Cao K James Lee L Tomy Widya | 2005 | Polymer2005，46，： | 1 |
| 16 | Short-term caloric restriction normalizes hypothalamic neuronal responsiveness to glucose ingestion in patients with type 2diabetes显示文摘 | Teeuwisse WM Widya RL Paulides M | 2012 | Diabetes2012，61，12： | 1 |
| 17 | Polyurethane/clay nanocomposites foams : processing, structure and properties 显示文摘 | XIA C LEE L J WIDYA T | 2005 | Polymer2005，46，3： | 1 |
| 18 | Polyurethane/clay nanocomposites foams: processing, structure and properties显示文摘 | Xia Cao James Leea L Tomy Widya | 2005 | polymer2005，46，： | 1 |
| 19 | Nanoclay-modified rigid polyurethane foam显示文摘 | Tomy Widya Christopher W Macosko | 2005 | Journal of Macromolecular Science Part B: Physics2005，44，6： | 1 |
| 20 | Modeling the Vagus Nerve System with the Unified Modeling Language显示文摘 | Bert-Jan F Widya I A | 2010 | Journal of Neuroscience Methods2010，193，2： | 1 |
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