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Prof.

Saharman Gea

S.Si., M.Si. Ph.D
Saharman Gea

Prof. Saharman Gea, S.Si., M.Si. Ph.D

Employee ID Number

196811101999031001

National Lecturer Registration Number

0010116812

Study Program
Program Studi S1 Kimia
Program Studi S2 Kimia
Program Studi S3 Ilmu Kimia
Field Of Knowledge
Positions
Professor
Research Media
Research Gate Google Scholar Sinta Scopus Orcid ID
Contacts:
E-mail

s.gea@usu.ac.id, s.gea@usu.ac.id

Office Address

USU Faculty of Mathematics and Natural Sciences

Curriculum Vitae file_download
Publications
Other Publications

National Publications

Physical Characteristics of Pyrolytic Bio-Oil Synthesized From Pericarp from Mahogany (Swietenia mahogany) with Water Hyacinth Biodhar as Catalyst

AVERROES FAZLUR RAHMAN PILIANG , SAHARMAN GEA

Aktivitas fisik dan psikologis pada pasien chronic kidney diseaseyang menjalani hemodialisis: A literature review

RESMI PANGARIBUAN , ALMINA ROSPITARIA TARIGAN , ERMI GIRSANG , ELIS ANGGERIA , SAHARMAN GEA

Improvement of Research Proposal Writing Skills for PSDKU USU Lecturers in North Nias

RAHMAWATY , SAHARMAN GEA

Antifungal activities of auto-polymerized silicone soft denture liner material containing Origanum vulgare gel against Candida albicans over 14-day period: an in vitro study

ARIYANI DRG , ISMET DANIAL NASUTION , DWI SURYANTO , SAHARMAN GEA

Pioneering bio-oil extraction: The role of transition metal oxide zeolite catalysts in co-pyrolyzing palm fronds and high-density polyethylene

DIANA ALEMIN BARUS , SAHARMAN GEA

Pelatihan dan Pengembangan Peningkatan Kompetensi Penulisan Karya Ilmiah Bagi Dosen Universitas Prima Kota Medan

YENI ABSAH , SYAFRIZAL HELMI SITUMORANG , SAHARMAN GEA , BEBY KARINA FAWZEEA

Characterization of Silicon from Rice Husk Doped with Cobalt: Analysis of Structure and Magnetoelectric Properties

RIZKY KURNIAWAN , HADI KURNIAWAN , ANDRIAYANI , SAHARMAN GEA

PREPARATION OF KEMUNING LEAF EXTRACT MICROENCAPSULATION BY IONIC GELATION METHOD AS AN ANTIBACTERIAL

SAHARMAN GEA , ANDRIAYANI , HARIYATI , Khatarina Meldawati Pasaribu

Synthesis of Carbon Dots From Empty Fruit Bunch Biochar an Acid-Free Hydrothermal Method

MARPONGAHTUN , SAHARMAN GEA

Enhancement Mechanical Properties of Simalambuo Wood (Loppophetalum spp) Delignified using NaOH in the Thermomechanical Densification Method

SAHARMAN GEA , ANDRIAYANI , FEBRI SINDIKA , NUR AZIZAH

Effect of variation temperature at burning rice husk to obtain silica

SAHARMAN GEA

The manufacture nanofiber from sugarcane bagasse lignin with polyvinyl alcohol by electrospinning method

SAHARMAN GEA

The effect of chelating agents on the formation of manganese oxide (MnO) in the synthesis of sodium manganese oxide (Na<inf>2</inf>Mn<inf>3</inf>O<inf>7</inf>)

SAHARMAN GEA

Preparation and Characterisation of Electrospun Composite Nanofibre Polyvinyl Alcohol/ Nanofibrillated Cellulose Isolated from Oil Palm Empty Fruit Bunches

SAHARMAN GEA

NANOENKAPSULASI ASAM STEARAT DENGAN MODIFIKASI GRAFENA mG/SA WALL-CORE SEBAGAI KOMPOSIT PERUBAHAN FASA

SAHARMAN GEA

Mechanical and morphological characteristic investigations of deinked used newsprint paper via ultra-sonochemistry method

SAHARMAN GEA

The Effect of Chemical Activation Using Base Solution With Various Concentrations Towards Sarulla Natural Zeolite

SAHARMAN GEA

Morphology and thermal properties of polypropylene-montmorillonite nanocomposite using modified bentonite of Bener Meriah Aceh

SAHARMAN GEA

Comparative Optimization of Cellulase and Laccase Enzymes in Deinking Process of Used Newspapers

SAHARMAN GEA

Improving quality and yield production of coconut shell charcoal through a modified pyrolysis reactor with tar scrubber to reduce smoke pollution

SAHARMAN GEA

Electrical and thermal conductivity of cyclic natural rubber/graphene nanocomposite prepared by solution mixing technique

SAHARMAN GEA

The use of nanofibrils celulose of sugarcane bagasse as precursor in synthesizing carbon nanodots by hydrothermal method

SAHARMAN GEA

Preparation of polyvinyl alcohol/cellulose nano fiber nanocomposite isolated from empty oil palm fruit bunches

SAHARMAN GEA

Wet-spinning of cellulose acetate reinforced with acetylated nano-crystalline cellulose as carbon fibre precursors

SAHARMAN GEA

Analisa XRD Terhadap Perubahan Struktur Dan Kristalinitas Karbonisasi Batubara Sawahlunto–Sijunjung Sumatera Barat

SAHARMAN GEA

Briquettes manufacturing: mechanisation of briquette productions at SME santan coco

SAHARMAN GEA

Sintesis Nanoserat Selulosa dari Tandan Kosong Sawit (Tks) dengan Menggunakan Metode Tetramethyl Piperidine 1 Oxyl (TEMPO)

SAHARMAN GEA

The use of bentonite of Bener Meriah Aceh to improve the mechanical properties of Polypropylene-Montmorillonite Nanocomposite

SAHARMAN GEA

Analisa XRD Terhadap Perubahan Struktur Dan Kristalinitas Karbonisasi Batubara Sawahlunto – Sijunjung Sumatera Barat

SAHARMAN GEA , BASUKI , Ir. VIVI PURWANDARI, M.Si

All-cellulose composite isolated from oil palm empty fruit bunch

SAHARMAN GEA

Activity assays of calcinated sarulla natural zeolite (snz-cal) in catalytic hydrocracking rubber seed oil

SAHARMAN GEA

Fabrication and characterization of natural rubber composite (sir 5)/organo-montmorillonite using cetil trimetil ammonium bromide as a surface modifier

SAHARMAN GEA

Preliminary study on the fabrication of cellulose nanocomposite film from oil palm empty fruit bunches partially solved into licl/dmac with the variation of dissolution time

SAHARMAN GEA

Characterization of composite boards made of oil palm trunk flour/maleic anhydride grafted polypropylene

SAHARMAN GEA

Acetylation of breadfruit utarch by Using Acetic Anhydride

SAHARMAN GEA

The preparation and characterization of bentonite nanoparticle from Bener Meriah, Indonesia

SAHARMAN GEA

The Study of Liquid Smoke as Substitutions in Coagulating Latex to the Quality of Crumb Rubber

SAHARMAN GEA

Synthesis of Carbon Nanodots from Cellulose Nanocrystals Oil Palm Empty Fruit by Pyrolysis Method

SAHARMAN GEA

The study on physical and mechanical properties of latex/graphene oxide composite film

SAHARMAN GEA

The characterization of Sarulla natural zeolite crystal and its morphological structure

SAHARMAN GEA

The analysis of thermal and mechanical properties of biocomposite policaprolactone/cellulose nanofiber from oil palm empty fruit bunches

SAHARMAN GEA

Enhancing the quality of nata de coco starter by channeling the oxygen into the bioreactor through agitation method

SAHARMAN GEA

Synthesis of graphene oxide from the Sawahlunto-Sijunjung coal via modified hummers method

SAHARMAN GEA

Study of bacterial cellulose as scaffold on cartilage tissue engineering

SAHARMAN GEA

IbM of Small Medium Enterprise of Coconut Milk and Liquid Smoke from Coconut Shells

SAHARMAN GEA

Isolasi dan Karakterisasi Nanokistral Selulosa dari Tandan Sawit (Elaeis Guineensis Jack)

SAHARMAN GEA

Chitosan/graphene oxide biocomposite film from pencil rod

SAHARMAN GEA

The Isolation of Nanofibre Cellulose from Oil Palm Empty Fruit Bunch Via Steam Explosion and Hydrolysis with HCl 10%

SAHARMAN GEA

Morphological study of fluorescent carbon Nanoparticles (F-CNPs) from ground coffee waste soot oxidation by diluted acid

SAHARMAN GEA

Peningkatan Kualitas Produksi Santan Kelapa Sebagai Bahan Baku Industri Kuliner Di Kota Medan

SAHARMAN GEA

The Manufacture of Nanocomposites Polyvinyl Alcohol/cellulose Nanofiber Isolated From Empty Bunch Fruit Palm Oil (Elaeis Guineensis Jack) with Steam Explosion

SAHARMAN GEA

Nonporous chitosan/collagen scaffold for skin tissue engineering

SAHARMAN GEA

Sifat Mekanik dan Termal Bionanokomposit Pati yang Diperkuat oleh Partikulat Sellulose Bakteri

SAHARMAN GEA

International Publications

NaHCO₃-Assisted Synthesis of Ni-Promoted Sulfated Mesoporous Silica for the Hydrocracking of Used Cooking Oil into Biogasoline

NIKO PRASETYO , KARNA WIJAYA , SAHARMAN GEA , MARINI FAIRUZ VEBRYANA , Aldino Javier Saviola , Dr. Wahyu Dita Saputri , Dr. Amalia Kurnia Amin, S.Si. , Dr. Latifah Hauli

NaHCO₃-Assisted Synthesis of Ni-Promoted Sulfated Mesoporous Silica for the Hydrocracking of Used Cooking Oil into Biogasoline

NIKO PRASETYO , KARNA WIJAYA , SAHARMAN GEA , MARINI FAIRUZ VEBRYANA , Aldino Javier Saviola , Dr. Wahyu Dita Saputri , Dr. Amalia Kurnia Amin, S.Si. , Dr. Latifah Hauli

Enhancing recycled-paper quality using cellulose nanocrystals from pineapple leaf waste

SAHARMAN GEA , AVERROES FAZLUR RAHMAN PILIANG , SRI RAHAYU, S.SI , Refi Ikhtiari , MUHAMMAD IBADURRAHMAN , Ronn Goei , Zhihao Yen

Biochar-Based Catalysts in Hydrogen Production: Mechanisms, Activation, and Efficiency

SAHARMAN GEA , BASUKI , ANDRIAYANI , RICKY ANDI SYAHPUTRA , KARNA WIJAYA , SHIPLU SARKER

Hydrogen generation from coconut shell bio-oil via steam reforming incorporating energy– exergy analysis

KARNA WIJAYA , DENNY HARYANTO SINAGA , SAHARMAN GEA , RICKY ANDI SYAHPUTRA , BASUKI , HENDRA SUSILO

NaHCO₃-Assisted Synthesis of Ni-Promoted Sulfated Mesoporous Silica for the Hydrocracking of Used Cooking Oil into Biogasoline

SAHARMAN GEA , KARNA WIJAYA , NIKO PRASETYO , MARINI FAIRUZ VEBRYANA , Aldino Javier Saviola , Wahyu Dita Saputri , Amalia Kurnia Amin , Latifah Hauli

Investigation of electrical conductivity of graphite, graphene oxide (GO) and reduce graphene oxide (rGO) as afiller of acetate cellulose-based nanocomposite

SAHARMAN GEA , ERWAN BENHARD SILITONGA , Gabriella Althea Buntaro , Ronn Goei , Reka Mustika Sari

Characterization and evaluation of a cellulose-based hydrogel prepared from oil palm empty fruit bunches and crosslinked with citric acid

NAJLA LUBIS , SAHARMAN GEA , TAMRIN , JULIATI BR TARIGAN

Synthesis and physicochemical properties of cationic starch from the etherification of cassava (Manihot utilissima)

SAHARMAN GEA , CUT FATIMAH ZUHRA , SRI RAHAYU , REKA MUSTIKA SARI , NOR AZZURA , Ronn Goei , Eva Oktavini

Characterization and evaluation of a cellulose-based hydrogel prepared from oil palm empty fruit bunches and crosslinked with citric acid

AVERROES FAZLUR RAHMAN PILIANG , SAHARMAN GEA , TAMRIN , JULIATI BR TARIGAN , NAJLA LUBIS , Ronn Goei

Penetration ability of liquid smoke and silicon oil on Simalambuo wood

ANDRIAYANI , SAHARMAN GEA , NURAZIZAH

The Utilization of Alumunium Waste as Metal Agent to Improve Electrical Characteristics of Biochar-Based Flexible Film

AVERROES FAZLUR RAHMAN PILIANG , SANJAYA BAROAR SAKTI NASUTION , ALFIN FAUZI MALIK , OKI SUPRADA OMPUSUNGGU , SAHARMAN GEA

Graphene oxide–bacterial cellulose composites for enhanced adsorption of rhodamine B from aqueous solutions

SAHARMAN GEA

Synergy of Intercalation and Stacking Fault Formation to Increase the Optical Properties of N-CQDs/ZnO NCs via Nonmetal-Metal Interface and The Investigation of Its Photocatalytic Activities for Degradation of Rhodamine B

AVERROES FAZLUR RAHMAN PILIANG , SAHARMAN GEA

Facile synthesis of reduced graphene oxide using natural plant extracts as green reducing agents

SAHARMAN GEA

Extraction and characterization of cellulose nanofibers from rice husk: Potential for electrospun PVA/CNF mat composites

SAHARMAN GEA

Natural Resources, Environment, and Food and Energy Security Updates in North Sumatra

SAHARMAN GEA , ANDRIAYANI , TAMRIN

Facile synthesis and electrochemical performance of bacterial cellulose/reduced graphene oxide/NiCo-layered double hydroxide composite film for self-standing supercapacitor electrode

SAHARMAN GEA

Efficient conversion of used palm cooking oil into biogasoline over hydrothermally prepared sulfated mesoporous silica loaded with NiMo catalyst

SAHARMAN GEA , NIKO PRASETYO , KARNA WIJAYA

Preparation of biochar catalyst from coconut shell impregnated with nickel metal as a heterogeneous catalyst

SAHARMAN GEA , BASUKI , KARNA WIJAYA , RICKY ANDI SYAHPUTRA , ANI SUTIANI , MARLAN , MUHAMMAD IRVAN HASIBUAN , ADELBERT LANA SIMANGUNSONG

A review: Current trends and future perspectives of bacterial nanocellulose-based wound dressings

SAHARMAN GEA , NOVIA AMALIA SHOLEHA , I PUTU MAHENDRA , Khatarina Meldawati Pasaribu , Nanang Masruchin , Myrtha Karina , Abhishek Gupta , Brian Johnston , Izabela Radecka

Improved mechanical and thermal performance of bacterial cellulose paper through cationic cassava starch addition

SAHARMAN GEA

A review: Current trends and future perspectives of bacterial nanocellulose-based wound dressings

Khatarina Meldawati Pasaribu , SAHARMAN GEA

The Effect of Concentration Based on Etching Time of Hydrofluoric Acid on Shear-Bond Strength of Porcelain Repair Material on Cohesive Fractures of Porcelain Fused to Metal Restoration

SYAFRINANI , SAHARMAN GEA , PUTRI WELDA UTAMI RITONGA , ANDRI SINULINGGA

Temperature-dependent etherification of cassava starch with CHPTAC for cationic starch production

JULIATI BR TARIGAN , BASUKI , SRI RAHAYU , AVERROES FAZLUR RAHMAN PILIANG , NICO SETYAWAN SIHOTANG , Khatarina Meldawati Pasaribu , Evi Oktavia , Ronn Goei , Alfred Ling Yoong Tok , Jonathan Low , SAHARMAN GEA , CUT FATIMAH ZUHRA

Biomass-derived N-doped Carbon Dots/TiO2 for Visible-Light-Induced Degradation of Methyl Orange in Wastewater

SAHARMAN GEA

Development of chromium-impregnated sulfated silica as a mesoporous catalyst in the production of biogasoline from used cooking oil via a hydrocracking process

SAHARMAN GEA

Esterification of palm fatty acid distillate to methyl ester using amberlyst catalyst in a semi-continuous reactor

SAHARMAN GEA , SYUKRI , EDDIYANTO , ALFA AKUSTIA WIDATI

The synthesis of macro-initiator using cellulose isolated from OPEFB via atomic transfer radical polymerization method

SAHARMAN GEA

Graft Copolymerisation of Maleic Anhydride onto Natural Rubber (SIR-20): Melt Processing and Characterisation

SAHARMAN GEA

Esterification of palm fatty acid distillate to methyl ester using amberlyst catalyst in a semi-continuous reactor

SAHARMAN GEA

Development of chromium‑impregnated sulfated silica as a mesoporous catalyst in the production of biogasoline from used cooking oil via a hydrocracking process

SAHARMAN GEA , KARNA WIJAYA , NIKO PRASETYO , Zulfaa Lola Ardelia , RISKA ASTIN FITRIA , Aldino Javier Saviola , TYAS SEKAR NINGRUM , Dr. Latifah Hauli , Adi Setiawan , Dr. Wahyu Dita Saputri , Won-Chun Oh , Dr. Amalia Kurnia Amin, S.Si.

Development of chromium‑impregnated sulfated silica as a mesoporous catalyst in the production of biogasoline from used cooking oil via a hydrocracking process

SAHARMAN GEA , KARNA WIJAYA

Pyrolysis of Palm Fronds Waste into Bio-Oil and Upgrading Process Via Esterification-Hydrodeoxygenation Using Cu–Zn Metal Oxide Catalyst Loaded on Mordenite Zeolite

AHMAD NASIR PULUNGAN , FAUZIYAH HARAHAP , SAHARMAN GEA , CICIK SURIANI , JUNIFA LAYLA SIHOMBING , LISNAWATY SIMATUPANG

The Effect of Fluoride Acid Ething Times on The Adhesive Behaviours of Porcelain Restorative Materials on The Cohesive Fractures of Porcelain Fused to Metal Restoration

PUTRI WELDA UTAMI RITONGA , SYAFRINANI , SAHARMAN GEA , FEMY RILINDA, DRG

Characteristics of Simalambuo (Lophopetalum sp.) wood from Nias Island, North Sumatra Province, Indonesia

ATMAWI DARWIS , SAHARMAN GEA , RUDI HARTONO , TITO SUCIPTO , SYAHIDAH , ARIDA SUSILOWATI , APRI HERI ISWANTO , NIKEN SUBEKTI , WAHYU HIDAYAT , Widya Fatriasari , Jajang Sutiawan , Nan Hun Kim , DWIVIA WAHYU AMANDA , Muhammad Adly Rahandi Lubis

Highly Fluorescent Nitrogen-doped Carbon dots derived from Jengkol Peels (Archindendron pauciflorum) by Solvothermal Synthesis for Sensitive Hg2+ Ions Detection

ANIZA SALVIANA PRAYUGO , AMRU DAULAY , Ronn Goei , Alfred Ling Yoong Tok , MARPONGAHTUN , SAHARMAN GEA

Pyrolysis of Palm Fronds Waste into Bio‐Oil and Upgrading Process Via Esterification‐Hydrodeoxygenation Using Cu–Zn Metal Oxide Catalyst Loaded on Mordenite Zeolite

SAHARMAN GEA

Lignocellulosic analysis from oil palm empty fruit bunches and crystallinity index analysis of cellulose nanofibers isolated via high pressure steam explosion

TAMRIN , SAHARMAN GEA , JULIATI BR TARIGAN

The characterization of agitated bacterial cellulose-based paper synthesized at various rotational speeds

SAHARMAN GEA

Lignocellulosic analysis from oil palm empty fruit bunches and crystallinity index analysis of cellulose nanofibers isolated via high pressure steam explosion

SAHARMAN GEA

Rice husk is renewable source in synthesis nanosilicon and its application as potential anode lithium-ion batteries

SAHARMAN GEA

Two stages upgrading of bio‑oil through esterifcation and hydrodeoxygenation reactions using Fe2O3‑CoO supported catalyst

SAHARMAN GEA

Photocatalytic Degradation of Methylene Blue Using N‑Doped ZnO/ Carbon Dot (N-ZnO/CD) Nanocomposites Derived from Organic Soybean

ANDRIAYANI , SAHARMAN GEA

Silica-Based Catalysts for Biodiesel Production: A Brief Review

SAHARMAN GEA

Ultrasound pretreatment and enzymatic deinking by using bacterial cellulases from rice husk

SAHARMAN GEA

Acetylated lignin from oil palm empty fruit bunches and its electrospun nanofibres with PVA: Potential carbon fibre precursor

SAHARMAN GEA

Bioactive bacterial cellulose wound dressings for burns with collagen in-situ and chitosan ex-situ impregnation

SAHARMAN GEA

Compression Strength of Metal-Ceramic Fixed Dental Prostheses Reinforced by Nanoparticle Silica from Rice Husks

SAHARMAN GEA

Simulation Analysis of The Utilizing Oil Palm Mill Waste Into Hydrogen Energy Through The Biomass Pyrolysis

TAUFIQ BIN NUR , SAHARMAN GEA , IRVAN

Evaluation to possibility of cellulose fibers isolated from kapok randu (Ceiba Pentandra) as a precursor growth of carbon micro structures with the assist of metal catalysts

SAHARMAN GEA

Production of levulinic acid from glucose using nickel phosphate-silica catalyst

SAHARMAN GEA

Nanofiber Cellulose/Lignin from Oil Palm Empty Fruit Bunches and the Potential for Carbon Fiber Precursor Prepared by Wet-spinning

SAHARMAN GEA

Utilization of Silica Nanoparticles from Rice Husks for Improving the Mechanical Properties of Dental Materials: A Literature Review

SLAMAT TARIGAN , SAHARMAN GEA

Synthesis of fluorescent citric acid carbon dots composites derived from empty fruit bunches of palm oil tree and its anti-bacterial property

SAHARMAN GEA , MARPONGAHTUN

Evaluation to possibility of cellulose �bers isolated from kapok randu (Ceiba Pentandra) as a precursor growth of carbon micro structures with the assist of metal catalysts

ANDRIAYANI , SAHARMAN GEA

Facile synthesis of ZnO–Ag nanocomposite supported by graphene oxide with stabilised band-gap and wider visible-light region for photocatalyst application

NURHAIDA PASARIBU , SAHARMAN GEA

Lignin Isolation from Oil Palm Empty Fruit Bunches (OPEFB) by Acidic Method

SAHARMAN GEA , AMIR HAMZAH SIREGAR , MAHYUNI HARAHAP

Cassava starch/bacterial cellulose-based bioplastics with Zanthoxylum acanthopodium

SAHARMAN GEA

A Comprehensive Review of Experimental Parameters in Bio‑oil Upgrading from Pyrolysis of Biomass to Biofuel Through Catalytic Hydrodeoxygenation

SAHARMAN GEA

Bio-oil hydrodeoxygenation over zeolite-based catalyst: the effect of zeolite activation and nickel loading on product characteristics

SAHARMAN GEA

Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature

SAHARMAN GEA

Preparation of Biodegradable and Low-Cost Lignin-Based PVOH Carbon Fibers Prepared by Electrospinning

SAHARMAN GEA

Preparation of Biodegradable and Low-Cost Lignin-Based PVOH Carbon Fibers Prepared by Electrospinning

SAHARMAN GEA

Extraction silica from rice husk with naoh leaching agent with temperature variation burning rice husk

SAHARMAN GEA

The effectiveness of coconut coir as tar adsorbent in liquid smoke integrated into the pyrolysis reactor

SAHARMAN GEA

Analysis and availability of lignocellulosic wastes: Assessments for Indonesia and Peru

SAHARMAN GEA

THE COMPARISON OF OPAQUE TiO2 AND TRANSPARENT TiO2 ON THE PERFORMANCE OF AgSbS2–SENSITIZED SOLAR CELL PREPARED BY SOLUTION PROCESSING

SAHARMAN GEA

The effect of plasticizers and chitosan concentration on the structure and properties of Gracilaria sp.-based thin films for food packaging purpose

EMMA ZAIDAR , MUHAMMAD ZULHAM EFENDI SINAGA , FIRMAN SEBAYANG , YUAN ALFINSYAH SIHOMBING , SAHARMAN GEA , CUT FATIMAH ZUHRA

The effect of plasticizers and chitosan concentration on the structure and properties of Gracilaria sp.-based thin films for food packaging purpose

CUT FATIMAH ZUHRA , SAHARMAN GEA , MUHAMMAD ZULHAM EFENDI SINAGA

The effect of plasticizers and chitosan concentration on the structure and properties of Gracilaria sp.-based thin films for food packaging purpose

SAHARMAN GEA

Characterization of Bacterial Cellulose-Based Wound Dressing in Different Order Impregnation of Chitosan and Collagen

SAHARMAN GEA

Preparation and characterisation of electrospun composite nanofibre polyvinyl alcohol/ nanofibrillated cellulose isolated from oil palm empty fruit bunches

SAHARMAN GEA

Thermal behavior, mineral phase, and microstructure characteristics of Na2 Mn3 O7 synthesized from MnO2 and MnCl2 via a low-cost, simple conventional mixing method

SAHARMAN GEA

Fabrication and In-Vivo Study of Micro-Colloidal Zanthoxylum acanthopodium-Loaded Bacterial Cellulose as a Burn Wound Dressing

SAHARMAN GEA

The Stabilization of Liquid Smoke through Hydrodeoxygenation Over Nickel Catalyst Loaded on Sarulla Natural Zeolite

SAHARMAN GEA

The Fabrication of Natural Zeolite Via Co-Precipitation Method as Cu, Pb and Zn Metal Absorbent

SAHARMAN GEA

Bacterial cellulose based biosensors

SAHARMAN GEA

Isolation and Characterisation of Cellulose Nanofibre and Lignin from Oil Palm Empty Fruit Bunches

SAHARMAN GEA

The Fabrication of Natural Zeolite Via Co-Precipitation Method As Cu, Pb and Zn Metal Absorbent

SAHARMAN GEA

The exfoliation process of sawahlunto coal into graphene through the modified hummer method

SAHARMAN GEA

Characteristic and Catalytic Performance of Co and Co-Mo Metal Impregnated in Sarulla Natural Zeolite Catalyst for Hydrocracking of MEFA Rubber Seed Oil into Biogasoline Fraction

SAHARMAN GEA

Conversion of methyl ester fatty acid from rice bran oil into fuel fraction via hydrocracking reaction over zeolite catalyst supported of Ni, Co and Mo metals

SAHARMAN GEA

Synthesis of Carbon Nanodots from Cellulose Nanocrystals Oil Palm Empty Fruit by Pyrolysis Method

YUGIA MUIS , SAHARMAN GEA , MARPONGAHTUN , ANDRIAYANI

Synthesis of nanobentonite as heavy metal adsorbent with various solvents

SAHARMAN GEA

Fabrication of poly (vinyl alcohol)/bentonite nanocomposites using sol-gel method

SAHARMAN GEA

The Preparation of All-Cellulose Nanocomposite Film from Isolated Cellulose of Corncobs as Food Packaging

SAHARMAN GEA

Preparation of graphene oxide/bacterial cellulose nanocomposite via in situ process in agitated culture

SAHARMAN GEA

The effect of concentration of structure and optical properties of thin films synthesized by sol-gel methods spin coating

SAHARMAN GEA

Mechanical properties of oil palm trunk by reactive compregnation methode with dammar resin

SAHARMAN GEA

The manufacture of palm oil-based polyurethane nanocomposite with organic montmorillonite nanoparticle as paint coatings

SAHARMAN GEA

Effect of mixed nanoparticles ZnS and polyvinyl alcohol (PVA) against nanocomposite mechanical properties of PVA/ZnS

SAHARMAN GEA

Preparation and Characterization of Nanocrystalline Cellulose from Sugar Palm Bunch (Arenga Pinnata (Wurmb) Merr.)

SAHARMAN GEA

Mechanical properties of nanocrystal cellulose reinforced polystyrene with glycerol monostearic as antistatic agent

SAHARMAN GEA

Mechanical and thermal properties of bacterial-cellulose-fibre-reinforced mater-bi® bionanocomposite

SAHARMAN GEA

Investigation into the structural, morphological, mechanical and thermal behaviour of bacterial cellulose after a two-step purification process

SAHARMAN GEA

Bacterial cellulose–poly (vinyl alcohol) nanocomposites prepared by an in-situ process

SAHARMAN GEA

All-cellulose nanocomposites by surface selective dissolution of bacterial cellulose

SAHARMAN GEA

Biocomposites based on bacterial cellulose and apple and radish pulp

SAHARMAN GEA

Facile synthesis of ZnO–Ag nanocomposite supported by graphene oxide with stabilised band-gap and wider visible-light region for photocatalyst application

SAHARMAN GEA , NURHAIDA PASARIBU