In this study, solution precipitation processes were used in order to synthesize calcium phosphate powder crystallites with nano-macro and meso-scale order. Calcium phosphate [CaP] powders were precipitated by using free-like ions of Ca2+ and H3-xPO4 from aqueous solution of calcium hydroxide [Ca(OH)2] and phosphoric acid [H3PO4]. According to phase boundary in the CaO-P2O5 phase diagram the concentration of Ca2+ and H3-xPO4 was controlled to make from nano- to macro- scale crystallites. The size of precipitated CaP powders could be uniformly controlled. The uniform CaP powders were mixed by using stainless mold and FRITCH vibrator, and weakly shaped under hydraulic press in order to get uniform composites of nano-size and macro-size crystallites. Uniform pore structure could be obtained by mixing CaP powder without using pore-making, POROGEN, polymer beads. Based on this process we prepared artificial CaP-based bone blocks by adding CaSO4.1/2H2O, which is well-known in medical bone cement. The fabrication process of CaP-based bone cement blocks will be shown in details. The artificial bone cement has been clinically applied in dental prosthesis and periodontics by local dentists, and the bone regeneration could be clinically confirmed. As key factors in artificial bone cement clinics, mechanical strength and bone hardening time could be considerably improved.

Myung Chul Chang has completed his PhD at the age of 36 years from Seoul National University and postdoctoral studies from University Illinois at Urbana Champaign. He is the director of Biomaterials Lab. He has published more than 50 papers in reputed journals and has been serving as an editorial board member of repute.

THz sources based on intracavity difference frequency generation (DFG) in mid-IR QCL have shown considerable progress in the past few years [1]. When a QCL active region is designed with strong coupling between the lower lasing levels and injector levels; which results in a large nonlinear susceptibility ꭕ^2, THz emission can be generated within the cavity , Thus, this type of THz source is free from the temperature limitation suffered by the THz QCLs based on direct optical transition, and ideally its working temperature is only limited by the mid-IR QCL which can work well even above 100 °C [2], and can be tuned over a broad waveguide range with broadband heterogeneous active region design [3]. It not only shares the common features of the mid-IR QCLs which are mass reproducible, room temperature operation, low cost, compact size, and high efficiency, but also carries the potential of delivering THz emission with high power in a wide frequency range (4). An optical frequency comb is a coherent light source whose spectrum consist of a series of discrete, equally spaced frequency lines. A THZ frequency comb capable of high resolution measurement will significantly advance the application of THZ technology in communication spectroscopy, metrology and sensing. We elaborated a room temperature THZ harmonic frequency comb in 2.2-3.3 THZ based on different –frequency generation from a mid-IR QCL comb. The THZ comb is intracavity generated via down converting a mid-IR QCL multimode comb with and integrated single mode mid-IR source based on distributed feedback without using external optical elements (5). Emerging as high-precision tools, mid-infrared frequency combs based on semiconductor technology platform are exhibiting unique advantages in waveform synthesizing, chemical sensing and biomedical diagnostics. However, they show high instability and strong phase decoherence under external factors such as electrical perturbations or temperature fluctuations, preventing their practical uses in high-precision applications for industrial explorations. we demonstrated experimentally and numerically that by resonantly injecting a radio-frequency (RF) into a high-performance mid-infrared quantum cascade laser (QCL), we are able to greatly stabilize the frequency comb down to hertz level. (6) This talk will cover recent advances and future trends of semiconductor THZ sources and frequency combs at center for quantum devices (CQD) at Northwestern University. 1- Razeghi. M . Recent progress of widely tunable, CW, THZ sources based QCLs at room temperature. THz Science and Tech. 10.87. (2017) 2- Bai, Y. Bandyopadhyay, N. TSao,S. Slivken, S. and Razeghi, M. Room temperature quantum cascade lasers with 27% wall plug efficiency. Appl. Phys. Lett. 98, 181102 (20110 3- Bandyopadhyay, N. Bai, Y. Slivken, S. and Razeghi, M. Appl. Phys. Lett, 105, 071106 (2014) 4- S. Slivken, N. Bandyopadhyay, Y. Bai, Q. Y. Lu, and M. Razeghi. Extended electrical turning of quantum cascade lasers with digital concatenated gratings. Appl. Phys. Lett. 103, 231110 (2013) 5- Q. Lu, F. Wang, D. Wu, S Slivken, and M. Razeghi. room temperature terahertz semiconductor frequency comb nature communications (accepted 2019) 6- F. Wang, Q. Lu, S. Slivken, D. Wu, R. McClintock, and M. Razeghi. Stabilization of QCL frequency combs via radio-injection. Submitted to Nature light (2019).

Dr. Razeghi, currently serving as the Director of the Center for Quantum Devices, Northwestern University. She created the Graduate and Undergraduate Programs in Solid State Engineering (SSE) in the ECE Department at Northwestern University, a 12 .course curriculum and also supervised 50 PhD dissertations, 19 MS theses while at Northwestern. Currently supervises approximately 15 PhD students, Post-Docs, Visiting Researchers, and Faculty. Dr. Razeghi is a pioneer in the area of III-V compound semiconductors and optoelectronic devices from the deep ultraviolet to the far infrared spectral bands, including in particular InP and GaAs based semiconductors and devices, which were at the heart of the optical fiber telecommunication revolution of the late 20th Century and the rise of the information age. She is also an expert in quantum devices operating in the deep ultraviolet spectral band, with the demonstration of novel light-emitting diodes, photo detectors and focal plane arrays with world record characteristics. Based on her scientific research work, Dr. Razeghi is the author of 18 books and the author of 31 book chapters. She is the author or co-author of more than 1000 papers and has given more than 1000 invited and plenary talks. She holds 55 patents.

Abstract: Intelligence quotient (IQ) is widely used to assess different aspects of mental ability. Development in mental ability initiates from conception and continues through adulthood. Various environmental factors affect IQ. Objectives: The aim of this study was to assess the correlation between Intelligent Quotient (IQ) and Environmental characteristics on Brain Size (cranial capacity) in children and adolescents in Malaysia. Methods: This cross sectional study was performed on primary and secondary school students in Kuala Terengganu, Malaysia. Students, who were aged between 6 to 16 years and did not have any mental or physical disabilities, participated in this study. Measurements including weight, height, body mass index and cephalometry were performed for each subject. The Wechsler Abbreviated Scale of Intelligence-second edition (WASI-II) questionnaire was used for each subject to evaluate the subtests of IQ. Results: A total of 419 subjects with the mean age of 12.51 ± 2.82 years had participated in this study. Boys were taller (p=0.04), had higher IQ (p=0.01) and cranial capacity (p<0.001) as well as block design score (p=0.02) when compared with girls. There was a significant mean effect for age (p=0.03), gender (p=0.04), paternal education (p=0.04), family income and block design (p=0.03) on cranial capacity. Conclusions: This study revealed different patterns of brain growth, functions and IQ amongst male and female subjects as well as defining the environmental factors that can affect cranial capacity and that the IQ and cranial capacity may be improved by tuning up the lifestyles and economic conditions of the families in developing countries. Key words: Cranial Capacity Intelligence Quotient Adolescents Children Malaysia

DR Swamy KB Swamy K B, presently working as Professor& HOD of Clinical anatomy, Lincoln University, Kuala Lumpur, MALAYSIA, has been awarded PhD by Andhra University, India. He has taken his Master’s Degree MS (in Clinical Anatomy) from Andhra Medical College, India, DMCh (Maternal & Child Health) from IGNOU, New Delhi, his Medical Degree (MBBS) in 1976, He has expertise in Human Genetics, Reproductive & Developmental Anatomy and also in Herbal Medicine. He has been the genetic counselor for many institutions, with prestigious grants (FRGS,,URGS) from Malaysian Government, he has conducted many researches on Herbal Medicine and Diabetes, on “Brain size and Intelligence Quotient (IQ)”, He has been the former founder Anatomist, Professor and Head of the Department for many Medical Schools in India as well as in Malaysia. He is an International Editorial Board Member for many reputed journals like Anatomical Society of India (ASI). Recently he has been unanimously elected as an Executive Board Member for ASI and an Organizing Committee Member for the “9th Euro-Global Summit on Toxicology and Applied Pharmacology held through June 22-24, 2017 at Paris, France., 11th International Conference on Pharmacoepidemiology and Clinical Research October 02-03, 2017 Kuala Lumpur, Malaysia, Editor for many journals like "Novel Techniques in Nutrition and FoodScience". Journal, Herald Scholarly Open Access Journals ( Annals Of anatomy & Physiology), Journal Anatomival Society Of India (JASI) and many more and also Manscript reviewer for journals like “Food & Chemical Toxicolgy (Elseveir), "Novel Techniques in Nutrition and FoodScience" and many more.

Saif Islam has completed his Ph.D. from UCLA and postdoctoral studies from Hewlett Packard Labs, Palo Alto, CA. His research interests include incorporation of low-dimensional nanostructured materials and devices with conventional integrated circuit (IC) elements and systems. Currently, he is the chair and a professor of the Electrical and Computer Engineering department of UC Davis. He is an elected fellow of the American Association for the Advancement of Science (AAAS), Optical Society of America (OSA), International Society for Optics and Photonics (SPIE) and the National Academy of Inventors (NAI).

The vast amount of biological mysteries and biomedical challenges faced by human provide a prominent drive for seamlessly merging electronics with biological living systems (e.g. human bodies) to achieve long-term stable functions. Towards this trend, the main bottlenecks are the huge mechanical mismatch between the current form of rigid electronics and the soft biological tissues. In this talk, I will describe a new form of electronics with skin-like softness and stretchability, which is built upon a new class of intrinsically stretchable polymer materials and a new set of fabrication technology.[1-2] I will show that equipping electronics with human-compatible form-factors has opened a new paradigm for wearable and implantable bio-electronic tools for biological studies, personal healthcare, medical diagnosis and therapeutics.[3] [1] J. Xu#, S. Wang#, et al. Highly stretchable polymer semiconductor films through the nanoconfinement effect, Science, 2017, 355, 59-64. [2] S. Wang, et al. Skin electronics from scalable fabrication of an intrinsically stretchable transistor array, Nature, 2018, 555, 83-88. [3] S. Wang, J. Y. Oh, J. Xu, H. Tran, Z. Bao. Skin-inspired electronics: an emerging paradigm, Accounts of Chemical Research, 2018, 51, 1033–1045.

Sihong Wang is an Assistant Professor in the Institute for Molecular Engineering at the University of Chicago. He received his Ph.D. degree in Materials Science and Engineering from the Georgia Institute of Technology in 2014 under the supervision of Prof. Zhong Lin Wang, and his Bachelor’s degree from Tsinghua University in 2009. From 2015 to 2018, he was a postdoctoral fellow under the advice of Prof. Zhenan Bao in Chemical Engineering at Stanford

Prof. Devraj Rambhau is a Advisor, Novel Drug Delivery Division Natco Research Centre, Natco Pharma Limited, Hyderabad. He has 32 years of Teaching/Research experience. Served as a professor for 21 years at University. College of Pharmaceutical Sciences. Was Dean, Principal/ Head for more than 10 years. Worked as Director of Technical services for Pulse pharma for 2 ½ years.

Dr. Eisele was born and educated in Germany and grew up in Berlin. She studied physics at the Technical University of Berlin, Germany, and finished an external Diploma Thesis (comparable with a US Master Thesis) from the Physikalisch Technische Bundesanstalt (German Institute of Standards), Germany, at the Berlin Electron Storage Ring Society for Synchrotron Radiation II (known as BESSY II), in collaboration with the Lawrence Livermore National Laboratory (LLNL), USA.

ABSTRCTS: Herein, we report a novel strategy, which combine nano-metal with semiconductor (metal oxides) atom layer film coated on the support, to fabricate Novel Hybird Complex Nano-structured Pt/@-MeOx/SBA-15 Catalyst prepared by photochemical route. This Hybird Complex Nano-structured Pt/@-MeOx/SBA-15 Catalyst is a novel Hybird nano-structured catalysts, which nano-metal were anchored on the semiconductor (metal oxides) atom -layer film coated on the support. The novel Hybird complex nano-structured Pt Catalyst exhibited remarkable catalytic activity in the selective hydrogenation of benzaldehyde, conversion exceeding 99.9% was achieved with >99% selectivity. No decay in the activity was observed by 12 cycles. for the Chemoselective hydrogenation of nitro compounds by 0.1wt% Pt/@-MeOx/SBA-15 Catalyst, Conversion achieved up to more than 99% with the selectivity of more than 99% .For the selective hydrogenation of p-chloronitrobenzene, it also obtained high selectivity(>99%) at complete conversion, the catalyst yields a TOF of 57588 h-1, about 2 orders of magnitude higher than that of the traditional Pt catalysts and 11.5-fold higher than the best result reported in the literature. More importantly, the Novel Hybird Complex Nano-structured Pt Catalyst exhibited the Synergistic Catalysis of nano-metal and semiconductor (metal oxides) atom-layer film coated on the support for the Chemoselective hydrogenation of nitro compounds by Pt/@-MeOx/SBA-15 catalysts and for the selective hydrogenation.The superior performance can be attributed to the Synergistic Catalysis of nano-metal and semiconductor (metal oxides) atom-layer film coated on the support and the unique properties of hybird nano-structure.

Zhou Jicheng Xiangtan University, China Dr. Zhou Jicheng is presently working as a professor at Xiangtan University, China. Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan Province, China.

Photon-material interaction is generally very weak in most semiconductors when incident photon wavelengths are close to their optical band gap. This leads to very weak absorption coefficients requiring considerably thick films for efficient light absorption. However, a photodetector designed with thick absorption region cannot operate at high-speed due to long carrier drift-time. By contrast, most emerging 2D materials with their diminishing thickness and ultra-short interaction time with photons are generally deemed to be impractical for photodetection because of very low absorption efficiency, despite their ultra-fast response time. In this presentation, we will demonstrate a technique to bend normally incident beams of light by almost ninety degrees into laterally propagating modes of light along the plane of semiconductor films by using a periodic array of micro and nanoscale holes. Such holes with dimensions close to the wavelength of light cause bending of light beam, slow them down and contribute to more than an order of magnitude improvement in the light absorption efficiency of photodiodes even when they are designed with very thin absorption regions. This thereby allows to maintain a thin absorption region in the photodiode and short drift-time, creating fast photodiodes while also keeping the absorption, and hence efficiency, of their devices high. Consequently, the compromise between speed and sensitivity is avoided. We will show that by applying this technique of photon-trapping to silicon and germanium, almost 90% quantum efficiency was achieved in photodiodes. Without such slow-light structures, the devices exhibit an order of magnitude lower quantum efficiency.

Saif Islam has completed his Ph.D. from UCLA and postdoctoral studies from Hewlett Packard Labs, Palo Alto, CA. His research interests include incorporation of low-dimensional nanostructured materials and devices with conventional integrated circuit (IC) elements and systems. Currently, he is the chair and a professor of the Electrical and Computer Engineering department of UC Davis. He is an elected fellow of the American Association for the Advancement of Science (AAAS), Optical Society of America (OSA), International Society for Optics and Photonics (SPIE) and the National Academy of Inventors (NAI).

Large quantity of oily waste water is generated from various industries, including oil exploration and oil refinery. Fast and efficient separation of oil from these waste water is challenging due to the small size of emulsified oil droplets. Membrane filtration has the great potential for separating oil-water emulsions, due to membrane’s size sieving effect. Here, a new micro-nanostructured membrane was reported for fast and efficient oil/water separation. This membrane is made of ZnO nanorods (NR) grown on carbon microfiber (CC) substrate. Due to its high hydrophilicity and oleophobicity of ZnO nanorods, this membrane exhibits excellent antifouling property, with the oil foulants on membrane surfaces easily washed away by simple physical cleaning without chemical additives. This membrane can achieve high water permeation flux (20933.4 L m−2 h−1) and high oil separation efficiency (over 99%), purely driven by gravity. Moreover, the facile fabrication process and inexpensive materials of this membrane provide great potential for its industrial application. This study shows a new method for fast and efficient oil/water separation with nanorods/microfiber composite membranes.

Dr. Zhaoyang Liu is a Senior Scientist in Water Group of Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar. His expertise involves the development of advanced materials and processes for water treatment. As part of Water Security Research Portfolio, Dr. Liu has been coordinating the pillar of Process Development and Optimization, which focuses on addressing the stakeholders' issues in seawater desalination and wastewater treatment. He holds a number of international patents for water treatment, and some of which have been successfully licensed to commercial enterprise. He also serves as Editorial Board Member of Scientific Reports.

In the field of agricultural science, protein is one of the most commonly used materials for the preparation of nanoparticles. Due to their amphiphilic nature, proteins adsorb at the hydrophobic/hydrophilic interface or form aggregates. This unusual character was utilized for the preparation of nanoparticles. In this presentation, two types of nanoparticles will be introduced: 1) Nanoparticles that change wetting property of materials immediately, 2) Nanoparticles that carry chemical compounds. Gliadin, a protein found in the endosperms of wheat (Triticum aestivum L.), is not soluble in water but dissolves in aqueous ethanol in the form of aggregates. As ethyl cyanoacrylate monomers are reacted with gliadin, poly(ethyl cyanoacrylate) chains are attached to the surface of gliadin molecules. The nanoparticles thus produced are made up of block copolymers that have an excellent coating capability on the surface of hydrophobic materials. These particles change the wetting property of the target material instantly and dramatically. Zein is one of the seed storage proteins found in the endosperm of maize. It is soluble in aqueous ethanol solutions with high ethanol content, and forms aggregates when the ethanol content of solution is lowered. This unique character was utilized to prepare tiny capsules that carry hydrophobic drugs. At optimum processing conditions, the encapsulation efficiency can readily surpass 90%.

Sanghoon Kim has completed his PhD from University of Wisconsin-Madison, USA and postdoctoral studies from National Institute of Standards and Technology, USA. He is a Research Chemist of National Center for Agricultural Utilization Research of US-Department of Agriculture. He has published more than 60 papers in reputed journals and has been serving as an editorial board member of Journal of Elastomers and Plastics.

In recent years, oil/water separation has become a worldwide problem as a result of the increasing release of oily industrial wastewater from oil and gas industries, resulting in high frequency of oily spills. Driven by economic and environmental aspects, recovery of oils from oily wastewater has become a major concern and advanced technologies for oil/water separation are urgently needed to effectively mitigate and control this problem. Membrane technology is considered the most efficient method for the treatment of oily wastewater because of its high separation efficiency and relatively simple operational process. The main purpose of surface modification is to increase hydrophilicity of membrane surfaces and improve membrane performance. However, the forms of emulsified oil/water are diverse, including both water-rich oil/water mixtures, such as oil-in-water emulsions, and oil-rich oil/water mixtures, such as water-in-oil emulsions. Hydrophilic membranes are applicable for the separation of water-rich oil/water mixtures but do not work for the separation of oil-rich oil/water mixtures. In this study, flexible free standing membranes were successfully fabricated using ultralong a-MnO2 nanowires synthesized through a hydrothermal method using chemicals - Manganese sulfate monohydrate (MnSO4.H2O), ammonium persulfate (APS) and ammonium sulfate ((NH4)2SO4). MnO2 has the advantage of being prepared in the form of crystalline nanowires with a high aspect ratio through a simple hydrothermal method. PVA was added onto the MnO2 to improve the robustness and performance and maintain the hydrophilicity. The performance of these membranes in separating oil/water emulsions have also been tested under various experimental conditions as well as its application in emulsion separation under acidic and alkaline conditions. The as-prepared MnO2 nanowire membrane was mechanically stable and highly flexible, with no obvious structural damage in shape after bending as shown. The membranes were characterized by SEM, AFM, contact angle measurements and ultrafiltration (UF) of oily wastewater.

Oluwaseun Ogunbiyi is a chartered chemical engineer with IChemE and is currently a research scientist at QEERI (Qatar Environment and Energy Research Institute), Hamad Bin Khalifa University (HBKU), a member of the Qatar Foundation. He completed his doctorate research in chemical engineering at the University of Nottingham in 2007. He has nine years of core Industrial experience as a senior process engineer at Wessex Water and GENeco and technical consultant at CH2M within the water and wastewater sector in the United Kingdom. He was actively involved as lead process consultant in the design, construction and operation of several sewage treatment works in the south west region of the UK. He has extensive knowledge of outline and detailed design as well as process optimization of existing and start-up wastewater treatment processes. His research interests include membrane-based treatment technologies, domestic and industrial wastewater reuse applications and process optimizations and improvements. He has publications related to his work in peer-reviewed journals including Chem. Eng Research and Design, Journal of Membrane Science and Desalination.